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// SPDX-License-Identifier: BSD-3-Clause
pragma solidity ^0.8.28;

import { BaseStrategy } from "@yieldnest-vault/strategy/BaseStrategy.sol";
import { IERC20, IERC20Metadata } from "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import { SafeERC20 } from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import { IAccountingModule } from "./AccountingModule.sol";
import { VaultLib } from "lib/yieldnest-vault/src/library/VaultLib.sol";

interface IFlexStrategy {
    error NoAccountingModule();
    error InvariantViolation();
    error AccountingTokenMismatch();

    event AccountingModuleUpdated(address newValue, address oldValue);
}

/**
 * @notice Storage struct for FlexStrategy
 */
struct FlexStrategyStorage {
    IAccountingModule accountingModule;
}

/**
 * Flex strategy that proxies the deposited base asset to an associated safe,
 * minting IOU accounting tokens in the process to represent transferred assets.
 */
contract FlexStrategy is IFlexStrategy, BaseStrategy {
    using SafeERC20 for IERC20;

    /// @notice The version of the flex strategy contract.
    string public constant FLEX_STRATEGY_VERSION = "0.1.0";

    /// @notice Storage slot for FlexStrategy data
    bytes32 private constant FLEX_STRATEGY_STORAGE_SLOT = keccak256("yieldnest.storage.flexStrategy");

    constructor() {
        _disableInitializers();
    }

    /**
     * @notice Get the storage struct
     */
    function _getFlexStrategyStorage() internal pure returns (FlexStrategyStorage storage s) {
        bytes32 slot = FLEX_STRATEGY_STORAGE_SLOT;
        assembly {
            s.slot := slot
        }
    }

    /**
     * @notice Initializes the vault.
     * @param admin The address of the admin.
     * @param name The name of the vault.
     * @param symbol The symbol of the vault.
     * @param decimals_ The number of decimals for the vault token.
     * @param baseAsset The base asset of the vault.
     * @param paused_ Whether the vault should start in a paused state.
     */
    function initialize(
        address admin,
        string memory name,
        string memory symbol,
        uint8 decimals_,
        address baseAsset,
        address accountingToken,
        bool paused_,
        address provider,
        bool alwaysComputeTotalAssets
    )
        external
        virtual
        initializer
    {
        if (admin == address(0)) revert ZeroAddress();

        _initialize(
            admin,
            name,
            symbol,
            decimals_,
            paused_,
            false, // countNativeAsset. MUST be false. strategy is assumed to hold no native assets
            alwaysComputeTotalAssets, // alwaysComputeTotalAssets
            0 // defaultAssetIndex. MUST be 0. baseAsset is default
        );

        _addAsset(baseAsset, IERC20Metadata(baseAsset).decimals(), true);
        _addAsset(accountingToken, IERC20Metadata(accountingToken).decimals(), false);
        _setAssetWithdrawable(baseAsset, true);

        VaultLib.setProvider(provider);
    }

    modifier hasAccountingModule() {
        if (address(_getFlexStrategyStorage().accountingModule) == address(0)) revert NoAccountingModule();
        _;
    }

    /**
     * @notice Internal function to handle deposits.
     * @param asset_ The address of the asset.
     * @param caller The address of the caller.
     * @param receiver The address of the receiver.
     * @param assets The amount of assets to deposit.
     * @param shares The amount of shares to mint.
     * @param baseAssets The base asset conversion of shares.
     */
    function _deposit(
        address asset_,
        address caller,
        address receiver,
        uint256 assets,
        uint256 shares,
        uint256 baseAssets
    )
        internal
        virtual
        override
        hasAccountingModule
    {
        // call the base strategy deposit function for accounting
        super._deposit(asset_, caller, receiver, assets, shares, baseAssets);

        // virtual accounting
        _getFlexStrategyStorage().accountingModule.deposit(assets);
    }

    /**
     * @notice Internal function to handle withdrawals for base asset
     * @param asset_ The address of the asset.
     * @param caller The address of the caller.
     * @param receiver The address of the receiver.
     * @param owner The address of the owner.
     * @param assets The amount of assets to withdraw.
     * @param shares The equivalent amount of shares.
     */
    function _withdrawAsset(
        address asset_,
        address caller,
        address receiver,
        address owner,
        uint256 assets,
        uint256 shares
    )
        internal
        virtual
        override
        hasAccountingModule
        onlyAllocator
    {
        if (asset_ != asset()) {
            revert InvalidAsset(asset_);
        }

        // call the base strategy withdraw function for accounting
        _subTotalAssets(_convertAssetToBase(asset_, assets));

        if (caller != owner) {
            _spendAllowance(owner, caller, shares);
        }

        // NOTE: burn shares before withdrawing the assets
        _burn(owner, shares);

        // burn virtual tokens
        _getFlexStrategyStorage().accountingModule.withdraw(assets, receiver);
        emit WithdrawAsset(caller, receiver, owner, asset_, assets, shares);
    }

    /**
     * @notice Sets the accounting module.
     * @param accountingModule_ address to check.
     * @dev Will revoke approvals for outgoing accounting module, and approve max for incoming accounting module.
     */
    function setAccountingModule(address accountingModule_) external virtual onlyRole(DEFAULT_ADMIN_ROLE) {
        if (accountingModule_ == address(0)) revert ZeroAddress();

        FlexStrategyStorage storage flexStorage = _getFlexStrategyStorage();
        emit AccountingModuleUpdated(accountingModule_, address(flexStorage.accountingModule));

        IAccountingModule oldAccounting = flexStorage.accountingModule;

        if (address(oldAccounting) != address(0)) {
            IERC20(asset()).approve(address(oldAccounting), 0);

            if (IAccountingModule(accountingModule_).accountingToken() != oldAccounting.accountingToken()) {
                revert AccountingTokenMismatch();
            }
        }

        flexStorage.accountingModule = IAccountingModule(accountingModule_);
        IERC20(asset()).approve(accountingModule_, type(uint256).max);
    }

    /**
     * @notice Internal function to get the available amount of assets.
     * @param asset_ The address of the asset.
     * @return availableAssets The available amount of assets.
     * @dev Overriden. This function is used to calculate the available assets for a given asset,
     *      It returns the balance of the asset in the associated SAFE.
     */
    function _availableAssets(address asset_) internal view virtual override returns (uint256 availableAssets) {
        address baseAsset = asset();
        if (asset_ == baseAsset) {
            return IERC20(baseAsset).balanceOf(_getFlexStrategyStorage().accountingModule.safe());
        }

        return super._availableAssets(asset_);
    }

    /**
     * @notice Returns the fee on total amount.
     * @return 0 as this strategy does not charge any fee on total amount.
     */
    function _feeOnTotal(uint256) public view virtual override returns (uint256) {
        return 0;
    }

    /**
     * @notice Returns the fee on total amount.
     * @return 0 as this strategy does not charge any fee on total amount.
     */
    function _feeOnRaw(uint256) public view virtual override returns (uint256) {
        return 0;
    }

    /// VIEWS ///

    function accountingModule() public view returns (IAccountingModule) {
        return _getFlexStrategyStorage().accountingModule;
    }
}

// SPDX-License-Identifier: BSD-3-Clause
pragma solidity ^0.8.24;

import {IERC20Metadata as IERC20, Math, SafeERC20} from "src/Common.sol";
import {BaseVault} from "src/BaseVault.sol";
import {IBaseStrategy} from "src/interface/IBaseStrategy.sol";

/**
 * @title BaseStrategy
 * @author Yieldnest
 * @notice This contract is a base strategy for any underlying protocol.
 * vault.
 */
abstract contract BaseStrategy is BaseVault, IBaseStrategy {
    /// @notice The version of the strategy contract.
    string public constant STRATEGY_VERSION = "0.2.0";
    /// @notice Role for allocator permissions
    bytes32 public constant ALLOCATOR_ROLE = keccak256("ALLOCATOR_ROLE");
    /// @notice Role for allocator manager permissions
    bytes32 public constant ALLOCATOR_MANAGER_ROLE = keccak256("ALLOCATOR_MANAGER_ROLE");

    /**
     * @notice Returns whether the strategy has allocators.
     * @return hasAllocators True if the strategy has allocators, otherwise false.
     */
    function getHasAllocator() public view returns (bool hasAllocators) {
        return _getBaseStrategyStorage().hasAllocators;
    }

    /**
     * @notice Sets whether the strategy has allocators.
     * @param hasAllocators_ The new value for the hasAllocator flag.
     */
    function setHasAllocator(bool hasAllocators_) external onlyRole(ALLOCATOR_MANAGER_ROLE) {
        BaseStrategyStorage storage strategyStorage = _getBaseStrategyStorage();
        strategyStorage.hasAllocators = hasAllocators_;

        emit SetHasAllocator(hasAllocators_);
    }

    /**
     * @notice Returns whether the asset is withdrawable.
     * @param asset_ The address of the asset.
     * @return True if the asset is withdrawable, otherwise false.
     */
    function getAssetWithdrawable(address asset_) external view returns (bool) {
        return _getBaseStrategyStorage().isAssetWithdrawable[asset_];
    }

    /**
     * @notice Sets whether the asset is withdrawable.
     * @param asset_ The address of the asset.
     * @param withdrawable_ The new value for the withdrawable flag.
     */
    function setAssetWithdrawable(address asset_, bool withdrawable_) external onlyRole(ASSET_MANAGER_ROLE) {
        _setAssetWithdrawable(asset_, withdrawable_);
    }

    /**
     * @notice Internal function to set whether the asset is withdrawable.
     * @param asset_ The address of the asset.
     * @param withdrawable_ The new value for the withdrawable flag.
     */
    function _setAssetWithdrawable(address asset_, bool withdrawable_) internal {
        BaseStrategyStorage storage strategyStorage = _getBaseStrategyStorage();
        strategyStorage.isAssetWithdrawable[asset_] = withdrawable_;

        emit SetAssetWithdrawable(asset_, withdrawable_);
    }

    /**
     * @notice Modifier to restrict access to allocator roles.
     */
    modifier onlyAllocator() {
        if (_getBaseStrategyStorage().hasAllocators && !hasRole(ALLOCATOR_ROLE, msg.sender)) {
            revert AccessControlUnauthorizedAccount(msg.sender, ALLOCATOR_ROLE);
        }
        _;
    }

    /**
     * @notice Returns the maximum amount of assets that can be withdrawn by a given owner.
     * @param owner The address of the owner.
     * @return maxAssets The maximum amount of assets.
     */
    function maxWithdraw(address owner) public view override returns (uint256 maxAssets) {
        maxAssets = _maxWithdrawAsset(asset(), owner);
    }

    /**
     * @notice Returns the maximum amount of assets that can be withdrawn for a specific asset by a given owner.
     * @param asset_ The address of the asset.
     * @param owner The address of the owner.
     * @return maxAssets The maximum amount of assets.
     */
    function maxWithdrawAsset(address asset_, address owner) public view returns (uint256 maxAssets) {
        maxAssets = _maxWithdrawAsset(asset_, owner);
    }

    /**
     * @notice Internal function to get the maximum amount of assets that can be withdrawn by a given owner.
     * @param asset_ The address of the asset.
     * @param owner The address of the owner.
     * @return maxAssets The maximum amount of assets.
     */
    function _maxWithdrawAsset(address asset_, address owner) internal view virtual returns (uint256 maxAssets) {
        if (paused() || !_getBaseStrategyStorage().isAssetWithdrawable[asset_]) {
            return 0;
        }

        uint256 availableAssets = _availableAssets(asset_);

        maxAssets = previewRedeemAsset(asset_, balanceOf(owner));

        maxAssets = availableAssets < maxAssets ? availableAssets : maxAssets;
    }

    /**
     * @notice Returns the maximum amount of shares that can be redeemed by a given owner.
     * @param owner The address of the owner.
     * @return maxShares The maximum amount of shares.
     */
    function maxRedeem(address owner) public view override returns (uint256 maxShares) {
        maxShares = _maxRedeemAsset(asset(), owner);
    }

    /**
     * @notice Returns the maximum amount of shares that can be redeemed by a given owner.
     * @param asset_ The address of the asset.
     * @param owner The address of the owner.
     * @return maxShares The maximum amount of shares.
     */
    function maxRedeemAsset(address asset_, address owner) public view returns (uint256 maxShares) {
        maxShares = _maxRedeemAsset(asset_, owner);
    }

    /**
     * @notice Internal function to get the maximum amount of shares that can be redeemed by a given owner.
     * @param asset_ The address of the asset.
     * @param owner The address of the owner.
     * @return maxShares The maximum amount of shares.
     */
    function _maxRedeemAsset(address asset_, address owner) internal view virtual returns (uint256 maxShares) {
        if (paused() || !_getBaseStrategyStorage().isAssetWithdrawable[asset_]) {
            return 0;
        }

        uint256 availableAssets = _availableAssets(asset_);

        maxShares = balanceOf(owner);

        maxShares = availableAssets < previewRedeemAsset(asset_, maxShares)
            ? previewWithdrawAsset(asset_, availableAssets)
            : maxShares;
    }

    /**
     * @notice Previews the amount of assets that would be required to mint a given amount of shares.
     * @param asset_ The address of the asset.
     * @param shares The amount of shares to mint.
     * @return assets The equivalent amount of assets.
     */
    function previewMintAsset(address asset_, uint256 shares) public view virtual returns (uint256 assets) {
        (assets,) = _convertToAssets(asset_, shares, Math.Rounding.Ceil);
    }

    /**
     * @notice Previews the amount of assets that would be received for a given amount of shares.
     * @param asset_ The address of the asset.
     * @param shares The amount of shares to redeem.
     * @return assets The equivalent amount of assets.
     */
    function previewRedeemAsset(address asset_, uint256 shares) public view virtual returns (uint256 assets) {
        (assets,) = _convertToAssets(asset_, shares, Math.Rounding.Floor);
        assets = assets - _feeOnTotal(assets);
    }

    /**
     * @notice Previews the amount of shares that would be received for a given amount of assets.
     * @param asset_ The address of the asset.
     * @param assets The amount of assets to deposit.
     * @return shares The equivalent amount of shares.
     */
    function previewWithdrawAsset(address asset_, uint256 assets) public view virtual returns (uint256 shares) {
        uint256 fee = _feeOnRaw(assets);
        (shares,) = _convertToShares(asset_, assets + fee, Math.Rounding.Ceil);
    }

    /**
     * @notice Withdraws a given amount of assets and burns the equivalent amount of shares from the owner.
     * @param assets The amount of assets to withdraw.
     * @param receiver The address of the receiver.
     * @param owner The address of the owner.
     * @return shares The equivalent amount of shares.
     */
    function withdraw(uint256 assets, address receiver, address owner)
        public
        virtual
        override
        nonReentrant
        returns (uint256 shares)
    {
        shares = _withdrawAsset(asset(), assets, receiver, owner);
    }

    /**
     * @notice Withdraws assets and burns equivalent shares from the owner.
     * @param asset_ The address of the asset.
     * @param assets The amount of assets to withdraw.
     * @param receiver The address of the receiver.
     * @param owner The address of the owner.
     * @return shares The equivalent amount of shares burned.
     */
    function withdrawAsset(address asset_, uint256 assets, address receiver, address owner)
        public
        virtual
        nonReentrant
        returns (uint256 shares)
    {
        shares = _withdrawAsset(asset_, assets, receiver, owner);
    }

    /**
     * @notice Internal function for withdraws assets and burns equivalent shares from the owner.
     * @param asset_ The address of the asset.
     * @param assets The amount of assets to withdraw.
     * @param receiver The address of the receiver.
     * @param owner The address of the owner.
     * @return shares The equivalent amount of shares burned.
     */
    function _withdrawAsset(address asset_, uint256 assets, address receiver, address owner)
        internal
        returns (uint256 shares)
    {
        if (paused()) {
            revert Paused();
        }
        uint256 maxAssets = maxWithdrawAsset(asset_, owner);
        if (assets > maxAssets) {
            revert ExceededMaxWithdraw(owner, assets, maxAssets);
        }
        shares = previewWithdrawAsset(asset_, assets);
        _withdrawAsset(asset_, _msgSender(), receiver, owner, assets, shares);
    }

    /**
     * @notice Internal function to handle withdrawals.
     * @param caller The address of the caller.
     * @param receiver The address of the receiver.
     * @param owner The address of the owner.
     * @param assets The amount of assets to withdraw.
     * @param shares The equivalent amount of shares.
     */
    function _withdraw(address caller, address receiver, address owner, uint256 assets, uint256 shares)
        internal
        virtual
        override
    {
        _withdrawAsset(asset(), caller, receiver, owner, assets, shares);
    }

    /**
     * @notice Internal function to handle withdrawals for specific assets.
     * @param asset_ The address of the asset.
     * @param caller The address of the caller.
     * @param receiver The address of the receiver.
     * @param owner The address of the owner.
     * @param assets The amount of assets to withdraw.
     * @param shares The equivalent amount of shares.
     */
    function _withdrawAsset(
        address asset_,
        address caller,
        address receiver,
        address owner,
        uint256 assets,
        uint256 shares
    ) internal virtual onlyAllocator {
        if (!_getBaseStrategyStorage().isAssetWithdrawable[asset_]) {
            revert AssetNotWithdrawable();
        }

        _subTotalAssets(_convertAssetToBase(asset_, assets));

        if (caller != owner) {
            _spendAllowance(owner, caller, shares);
        }

        // NOTE: burn shares before withdrawing the assets
        _burn(owner, shares);

        SafeERC20.safeTransfer(IERC20(asset_), receiver, assets);

        emit WithdrawAsset(caller, receiver, owner, asset_, assets, shares);
    }

    /**
     * @notice Redeems a given amount of shares and transfers the equivalent amount of assets to the receiver.
     * @param shares The amount of shares to redeem.
     * @param receiver The address of the receiver.
     * @param owner The address of the owner.
     * @return assets The equivalent amount of assets.
     */
    function redeem(uint256 shares, address receiver, address owner)
        public
        virtual
        override
        nonReentrant
        returns (uint256 assets)
    {
        assets = _redeemAsset(asset(), shares, receiver, owner);
    }

    /**
     * @notice Redeems shares and transfers equivalent assets to the receiver.
     * @param asset_ The address of the asset.
     * @param shares The amount of shares to redeem.
     * @param receiver The address of the receiver.
     * @param owner The address of the owner.
     * @return assets The equivalent amount of assets.
     */
    function redeemAsset(address asset_, uint256 shares, address receiver, address owner)
        public
        virtual
        nonReentrant
        returns (uint256 assets)
    {
        assets = _redeemAsset(asset_, shares, receiver, owner);
    }

    /**
     * @notice Internal function for redeems shares and transfers equivalent assets to the receiver.
     * @param asset_ The address of the asset.
     * @param shares The amount of shares to redeem.
     * @param receiver The address of the receiver.
     * @param owner The address of the owner.
     * @return assets The equivalent amount of assets.
     */
    function _redeemAsset(address asset_, uint256 shares, address receiver, address owner)
        internal
        returns (uint256 assets)
    {
        if (paused()) {
            revert Paused();
        }
        uint256 maxShares = maxRedeemAsset(asset_, owner);
        if (shares > maxShares) {
            revert ExceededMaxRedeem(owner, shares, maxShares);
        }
        assets = previewRedeemAsset(asset_, shares);
        _withdrawAsset(asset_, _msgSender(), receiver, owner, assets, shares);
    }

    /**
     * @notice Internal function to handle deposits.
     * @param asset_ The address of the asset.
     * @param caller The address of the caller.
     * @param receiver The address of the receiver.
     * @param assets The amount of assets to deposit.
     * @param shares The amount of shares to mint.
     * @param baseAssets The base asset conversion of shares.
     */
    function _deposit(
        address asset_,
        address caller,
        address receiver,
        uint256 assets,
        uint256 shares,
        uint256 baseAssets
    ) internal virtual override onlyAllocator {
        super._deposit(asset_, caller, receiver, assets, shares, baseAssets);
    }

    /**
     * @notice Retrieves the strategy storage structure.
     * @return $ The strategy storage structure.
     */
    function _getBaseStrategyStorage() internal pure virtual returns (BaseStrategyStorage storage $) {
        assembly {
            // keccak256("yieldnest.storage.strategy.base")
            $.slot := 0x5cfdf694cb3bdee9e4b3d9c4b43849916bf3f018805254a1c0e500548c668500
        }
    }

    /**
     * @notice Adds a new asset to the vault.
     * @param asset_ The address of the asset.
     * @param decimals_ The decimals of the asset.
     * @param depositable_ Whether the asset is depositable.
     * @param withdrawable_ Whether the asset is withdrawable.
     */
    function addAsset(address asset_, uint8 decimals_, bool depositable_, bool withdrawable_)
        public
        virtual
        onlyRole(ASSET_MANAGER_ROLE)
    {
        _addAsset(asset_, decimals_, depositable_);
        _setAssetWithdrawable(asset_, withdrawable_);
    }

    /**
     * @notice Adds a new asset to the vault.
     * @param asset_ The address of the asset.
     * @param depositable_ Whether the asset is depositable.
     * @param withdrawable_ Whether the asset is withdrawable.
     */
    function addAsset(address asset_, bool depositable_, bool withdrawable_)
        external
        virtual
        onlyRole(ASSET_MANAGER_ROLE)
    {
        _addAsset(asset_, IERC20(asset_).decimals(), depositable_);
        _setAssetWithdrawable(asset_, withdrawable_);
    }

    /**
     * @notice Internal function to get the available amount of assets.
     * @param asset_ The address of the asset.
     * @return availableAssets The available amount of assets.
     * @dev This function is used to calculate the available assets for a given asset,
     *      It returns the balance of the asset in the vault and also adds any assets
     *      already staked in an underlying staking protocol that is available for withdrawal.
     */
    function _availableAssets(address asset_) internal view virtual returns (uint256 availableAssets) {
        availableAssets = IERC20(asset_).balanceOf(address(this));
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/ERC20.sol)

pragma solidity ^0.8.20;

import {IERC20} from "./IERC20.sol";
import {IERC20Metadata} from "./extensions/IERC20Metadata.sol";
import {Context} from "../../utils/Context.sol";
import {IERC20Errors} from "../../interfaces/draft-IERC6093.sol";

/**
 * @dev Implementation of the {IERC20} interface.
 *
 * This implementation is agnostic to the way tokens are created. This means
 * that a supply mechanism has to be added in a derived contract using {_mint}.
 *
 * TIP: For a detailed writeup see our guide
 * https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * The default value of {decimals} is 18. To change this, you should override
 * this function so it returns a different value.
 *
 * We have followed general OpenZeppelin Contracts guidelines: functions revert
 * instead returning `false` on failure. This behavior is nonetheless
 * conventional and does not conflict with the expectations of ERC20
 * applications.
 *
 * Additionally, an {Approval} event is emitted on calls to {transferFrom}.
 * This allows applications to reconstruct the allowance for all accounts just
 * by listening to said events. Other implementations of the EIP may not emit
 * these events, as it isn't required by the specification.
 */
abstract contract ERC20 is Context, IERC20, IERC20Metadata, IERC20Errors {
    mapping(address account => uint256) private _balances;

    mapping(address account => mapping(address spender => uint256)) private _allowances;

    uint256 private _totalSupply;

    string private _name;
    string private _symbol;

    /**
     * @dev Sets the values for {name} and {symbol}.
     *
     * All two of these values are immutable: they can only be set once during
     * construction.
     */
    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }

    /**
     * @dev Returns the name of the token.
     */
    function name() public view virtual returns (string memory) {
        return _name;
    }

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public view virtual returns (string memory) {
        return _symbol;
    }

    /**
     * @dev Returns the number of decimals used to get its user representation.
     * For example, if `decimals` equals `2`, a balance of `505` tokens should
     * be displayed to a user as `5.05` (`505 / 10 ** 2`).
     *
     * Tokens usually opt for a value of 18, imitating the relationship between
     * Ether and Wei. This is the default value returned by this function, unless
     * it's overridden.
     *
     * NOTE: This information is only used for _display_ purposes: it in
     * no way affects any of the arithmetic of the contract, including
     * {IERC20-balanceOf} and {IERC20-transfer}.
     */
    function decimals() public view virtual returns (uint8) {
        return 18;
    }

    /**
     * @dev See {IERC20-totalSupply}.
     */
    function totalSupply() public view virtual returns (uint256) {
        return _totalSupply;
    }

    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view virtual returns (uint256) {
        return _balances[account];
    }

    /**
     * @dev See {IERC20-transfer}.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - the caller must have a balance of at least `value`.
     */
    function transfer(address to, uint256 value) public virtual returns (bool) {
        address owner = _msgSender();
        _transfer(owner, to, value);
        return true;
    }

    /**
     * @dev See {IERC20-allowance}.
     */
    function allowance(address owner, address spender) public view virtual returns (uint256) {
        return _allowances[owner][spender];
    }

    /**
     * @dev See {IERC20-approve}.
     *
     * NOTE: If `value` is the maximum `uint256`, the allowance is not updated on
     * `transferFrom`. This is semantically equivalent to an infinite approval.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 value) public virtual returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, value);
        return true;
    }

    /**
     * @dev See {IERC20-transferFrom}.
     *
     * Emits an {Approval} event indicating the updated allowance. This is not
     * required by the EIP. See the note at the beginning of {ERC20}.
     *
     * NOTE: Does not update the allowance if the current allowance
     * is the maximum `uint256`.
     *
     * Requirements:
     *
     * - `from` and `to` cannot be the zero address.
     * - `from` must have a balance of at least `value`.
     * - the caller must have allowance for ``from``'s tokens of at least
     * `value`.
     */
    function transferFrom(address from, address to, uint256 value) public virtual returns (bool) {
        address spender = _msgSender();
        _spendAllowance(from, spender, value);
        _transfer(from, to, value);
        return true;
    }

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to`.
     *
     * This internal function is equivalent to {transfer}, and can be used to
     * e.g. implement automatic token fees, slashing mechanisms, etc.
     *
     * Emits a {Transfer} event.
     *
     * NOTE: This function is not virtual, {_update} should be overridden instead.
     */
    function _transfer(address from, address to, uint256 value) internal {
        if (from == address(0)) {
            revert ERC20InvalidSender(address(0));
        }
        if (to == address(0)) {
            revert ERC20InvalidReceiver(address(0));
        }
        _update(from, to, value);
    }

    /**
     * @dev Transfers a `value` amount of tokens from `from` to `to`, or alternatively mints (or burns) if `from`
     * (or `to`) is the zero address. All customizations to transfers, mints, and burns should be done by overriding
     * this function.
     *
     * Emits a {Transfer} event.
     */
    function _update(address from, address to, uint256 value) internal virtual {
        if (from == address(0)) {
            // Overflow check required: The rest of the code assumes that totalSupply never overflows
            _totalSupply += value;
        } else {
            uint256 fromBalance = _balances[from];
            if (fromBalance < value) {
                revert ERC20InsufficientBalance(from, fromBalance, value);
            }
            unchecked {
                // Overflow not possible: value <= fromBalance <= totalSupply.
                _balances[from] = fromBalance - value;
            }
        }

        if (to == address(0)) {
            unchecked {
                // Overflow not possible: value <= totalSupply or value <= fromBalance <= totalSupply.
                _totalSupply -= value;
            }
        } else {
            unchecked {
                // Overflow not possible: balance + value is at most totalSupply, which we know fits into a uint256.
                _balances[to] += value;
            }
        }

        emit Transfer(from, to, value);
    }

    /**
     * @dev Creates a `value` amount of tokens and assigns them to `account`, by transferring it from address(0).
     * Relies on the `_update` mechanism
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * NOTE: This function is not virtual, {_update} should be overridden instead.
     */
    function _mint(address account, uint256 value) internal {
        if (account == address(0)) {
            revert ERC20InvalidReceiver(address(0));
        }
        _update(address(0), account, value);
    }

    /**
     * @dev Destroys a `value` amount of tokens from `account`, lowering the total supply.
     * Relies on the `_update` mechanism.
     *
     * Emits a {Transfer} event with `to` set to the zero address.
     *
     * NOTE: This function is not virtual, {_update} should be overridden instead
     */
    function _burn(address account, uint256 value) internal {
        if (account == address(0)) {
            revert ERC20InvalidSender(address(0));
        }
        _update(account, address(0), value);
    }

    /**
     * @dev Sets `value` as the allowance of `spender` over the `owner` s tokens.
     *
     * This internal function is equivalent to `approve`, and can be used to
     * e.g. set automatic allowances for certain subsystems, etc.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `owner` cannot be the zero address.
     * - `spender` cannot be the zero address.
     *
     * Overrides to this logic should be done to the variant with an additional `bool emitEvent` argument.
     */
    function _approve(address owner, address spender, uint256 value) internal {
        _approve(owner, spender, value, true);
    }

    /**
     * @dev Variant of {_approve} with an optional flag to enable or disable the {Approval} event.
     *
     * By default (when calling {_approve}) the flag is set to true. On the other hand, approval changes made by
     * `_spendAllowance` during the `transferFrom` operation set the flag to false. This saves gas by not emitting any
     * `Approval` event during `transferFrom` operations.
     *
     * Anyone who wishes to continue emitting `Approval` events on the`transferFrom` operation can force the flag to
     * true using the following override:
     * ```
     * function _approve(address owner, address spender, uint256 value, bool) internal virtual override {
     *     super._approve(owner, spender, value, true);
     * }
     * ```
     *
     * Requirements are the same as {_approve}.
     */
    function _approve(address owner, address spender, uint256 value, bool emitEvent) internal virtual {
        if (owner == address(0)) {
            revert ERC20InvalidApprover(address(0));
        }
        if (spender == address(0)) {
            revert ERC20InvalidSpender(address(0));
        }
        _allowances[owner][spender] = value;
        if (emitEvent) {
            emit Approval(owner, spender, value);
        }
    }

    /**
     * @dev Updates `owner` s allowance for `spender` based on spent `value`.
     *
     * Does not update the allowance value in case of infinite allowance.
     * Revert if not enough allowance is available.
     *
     * Does not emit an {Approval} event.
     */
    function _spendAllowance(address owner, address spender, uint256 value) internal virtual {
        uint256 currentAllowance = allowance(owner, spender);
        if (currentAllowance != type(uint256).max) {
            if (currentAllowance < value) {
                revert ERC20InsufficientAllowance(spender, currentAllowance, value);
            }
            unchecked {
                _approve(owner, spender, currentAllowance - value, false);
            }
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../IERC20.sol";
import {IERC20Permit} from "../extensions/IERC20Permit.sol";
import {Address} from "../../../utils/Address.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    using Address for address;

    /**
     * @dev An operation with an ERC20 token failed.
     */
    error SafeERC20FailedOperation(address token);

    /**
     * @dev Indicates a failed `decreaseAllowance` request.
     */
    error SafeERC20FailedDecreaseAllowance(address spender, uint256 currentAllowance, uint256 requestedDecrease);

    /**
     * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeTransfer(IERC20 token, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeCall(token.transfer, (to, value)));
    }

    /**
     * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the
     * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful.
     */
    function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeCall(token.transferFrom, (from, to, value)));
    }

    /**
     * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 oldAllowance = token.allowance(address(this), spender);
        forceApprove(token, spender, oldAllowance + value);
    }

    /**
     * @dev Decrease the calling contract's allowance toward `spender` by `requestedDecrease`. If `token` returns no
     * value, non-reverting calls are assumed to be successful.
     */
    function safeDecreaseAllowance(IERC20 token, address spender, uint256 requestedDecrease) internal {
        unchecked {
            uint256 currentAllowance = token.allowance(address(this), spender);
            if (currentAllowance < requestedDecrease) {
                revert SafeERC20FailedDecreaseAllowance(spender, currentAllowance, requestedDecrease);
            }
            forceApprove(token, spender, currentAllowance - requestedDecrease);
        }
    }

    /**
     * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval
     * to be set to zero before setting it to a non-zero value, such as USDT.
     */
    function forceApprove(IERC20 token, address spender, uint256 value) internal {
        bytes memory approvalCall = abi.encodeCall(token.approve, (spender, value));

        if (!_callOptionalReturnBool(token, approvalCall)) {
            _callOptionalReturn(token, abi.encodeCall(token.approve, (spender, 0)));
            _callOptionalReturn(token, approvalCall);
        }
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

        bytes memory returndata = address(token).functionCall(data);
        if (returndata.length != 0 && !abi.decode(returndata, (bool))) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     *
     * This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead.
     */
    function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We cannot use {Address-functionCall} here since this should return false
        // and not revert is the subcall reverts.

        (bool success, bytes memory returndata) = address(token).call(data);
        return success && (returndata.length == 0 || abi.decode(returndata, (bool))) && address(token).code.length > 0;
    }
}

// SPDX-License-Identifier: BSD-3-Clause
pragma solidity ^0.8.28;

import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import { SafeERC20 } from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import { IAccountingToken } from "./AccountingToken.sol";
import { IVault } from "@yieldnest-vault/interface/IVault.sol";
import { Initializable } from "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import { AccessControlUpgradeable } from "@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol";
import { IERC4626 } from "@openzeppelin/contracts/interfaces/IERC4626.sol";

interface IAccountingModule {
    struct StrategySnapshot {
        uint256 timestamp;
        uint256 pricePerShare;
        uint256 totalSupply;
        uint256 totalAssets;
    }

    event LowerBoundUpdated(uint256 newValue, uint256 oldValue);
    event TargetApyUpdated(uint256 newValue, uint256 oldValue);
    event CooldownSecondsUpdated(uint16 newValue, uint16 oldValue);
    event SafeUpdated(address newValue, address oldValue);

    error ZeroAddress();
    error TooEarly();
    error NotStrategy();
    error AccountingLimitsExceeded(uint256 aprSinceLastSnapshot, uint256 targetApr);
    error LossLimitsExceeded(uint256 amount, uint256 lowerBoundAmount);
    error InvariantViolation();
    error TvlTooLow();
    error CurrentTimestampBeforePreviousTimestamp();
    error SnapshotIndexOutOfBounds(uint256 index);

    function deposit(uint256 amount) external;
    function withdraw(uint256 amount, address recipient) external;
    function processRewards(uint256 amount) external;
    function processRewards(uint256 amount, uint256 snapshotIndex) external;
    function processLosses(uint256 amount) external;
    function setCooldownSeconds(uint16 cooldownSeconds) external;

    function baseAsset() external view returns (address);
    function strategy() external view returns (address);
    function DIVISOR() external view returns (uint256);
    function YEAR() external view returns (uint256);
    function accountingToken() external view returns (IAccountingToken);
    function safe() external view returns (address);
    function nextUpdateWindow() external view returns (uint64);
    function targetApy() external view returns (uint256);
    function lowerBound() external view returns (uint256);
    function cooldownSeconds() external view returns (uint16);
    function SAFE_MANAGER_ROLE() external view returns (bytes32);
    function REWARDS_PROCESSOR_ROLE() external view returns (bytes32);
    function LOSS_PROCESSOR_ROLE() external view returns (bytes32);

    function calculateApr(
        uint256 previousPricePerShare,
        uint256 previousTimestamp,
        uint256 currentPricePerShare,
        uint256 currentTimestamp
    )
        external
        view
        returns (uint256 apr);

    function snapshotsLength() external view returns (uint256);
    function snapshots(uint256 index) external view returns (StrategySnapshot memory);
    function lastSnapshot() external view returns (StrategySnapshot memory);
}

/**
 * @notice Storage struct for AccountingModule
 */
struct AccountingModuleStorage {
    IAccountingToken accountingToken;
    address safe;
    address baseAsset;
    address strategy;
    uint64 nextUpdateWindow;
    uint16 cooldownSeconds;
    uint256 targetApy; // in bips;
    uint256 lowerBound; // in bips; % of tvl
    uint256 minRewardableAssets;
    IAccountingModule.StrategySnapshot[] _snapshots;
}

/**
 * Module to configure strategy params,
 *  and mint/burn IOU tokens to represent value accrual/loss.
 */
contract AccountingModule is IAccountingModule, Initializable, AccessControlUpgradeable {
    using SafeERC20 for IERC20;

    /// @notice Role for safe manager permissions
    bytes32 public constant SAFE_MANAGER_ROLE = keccak256("SAFE_MANAGER_ROLE");

    /// @notice Role for processing rewards/losses
    bytes32 public constant REWARDS_PROCESSOR_ROLE = keccak256("REWARDS_PROCESSOR_ROLE");
    bytes32 public constant LOSS_PROCESSOR_ROLE = keccak256("LOSS_PROCESSOR_ROLE");

    uint256 public constant YEAR = 365.25 days;
    uint256 public constant DIVISOR = 1e18;
    uint256 public constant MAX_LOWER_BOUND = DIVISOR / 2;

    /// @notice Storage slot for AccountingModule data
    bytes32 private constant ACCOUNTING_MODULE_STORAGE_SLOT = keccak256("yieldnest.storage.accountingModule");

    /// @custom:oz-upgrades-unsafe-allow constructor
    constructor() {
        _disableInitializers();
    }

    /**
     * @notice Get the storage struct
     */
    function _getAccountingModuleStorage() internal pure returns (AccountingModuleStorage storage s) {
        bytes32 slot = ACCOUNTING_MODULE_STORAGE_SLOT;
        assembly {
            s.slot := slot
        }
    }

    /**
     * /**
     * @notice Initializes the vault.
     * @param strategy_ The strategy address.
     * @param admin The address of the admin.
     * @param safe_ The safe associated with the module.
     * @param accountingToken_ The accountingToken associated with the module.
     * @param targetApy_ The target APY of the strategy.
     * @param lowerBound_ The lower bound of losses of the strategy(as % of TVL).
     * @param minRewardableAssets_ The minimum rewardable assets.
     * @param cooldownSeconds_ The cooldown period in seconds.
     */
    function initialize(
        address strategy_,
        address admin,
        address safe_,
        IAccountingToken accountingToken_,
        uint256 targetApy_,
        uint256 lowerBound_,
        uint256 minRewardableAssets_,
        uint16 cooldownSeconds_
    )
        external
        virtual
        initializer
    {
        __AccessControl_init();

        if (admin == address(0)) revert ZeroAddress();

        _grantRole(DEFAULT_ADMIN_ROLE, admin);

        AccountingModuleStorage storage s = _getAccountingModuleStorage();

        if (address(accountingToken_) == address(0)) revert ZeroAddress();
        s.accountingToken = accountingToken_;

        s.minRewardableAssets = minRewardableAssets_;

        if (strategy_ == address(0)) revert ZeroAddress();
        s.strategy = strategy_;
        s.baseAsset = IERC4626(strategy_).asset();

        _setSafeAddress(safe_);
        _setTargetApy(targetApy_);
        _setLowerBound(lowerBound_);
        _setCooldownSeconds(cooldownSeconds_);

        createStrategySnapshot();
    }

    modifier checkAndResetCooldown() {
        AccountingModuleStorage storage s = _getAccountingModuleStorage();
        if (block.timestamp < s.nextUpdateWindow) revert TooEarly();
        s.nextUpdateWindow = (uint64(block.timestamp) + s.cooldownSeconds);
        _;
    }

    modifier onlyStrategy() {
        AccountingModuleStorage storage s = _getAccountingModuleStorage();
        if (msg.sender != s.strategy) revert NotStrategy();
        _;
    }

    /// DEPOSIT/WITHDRAW ///

    /**
     * @notice Proxies deposit of base assets from caller to associated SAFE,
     * and mints an equiv amount of accounting tokens
     * @param amount amount to deposit
     */
    function deposit(uint256 amount) external onlyStrategy {
        AccountingModuleStorage storage s = _getAccountingModuleStorage();
        IERC20(s.baseAsset).safeTransferFrom(s.strategy, s.safe, amount);
        s.accountingToken.mintTo(s.strategy, amount);
    }

    /**
     * @notice Proxies withdraw of base assets from associated SAFE to caller,
     * and burns an equiv amount of accounting tokens
     * @param amount amount to deposit
     * @param recipient address to receive the base assets
     */
    function withdraw(uint256 amount, address recipient) external onlyStrategy {
        AccountingModuleStorage storage s = _getAccountingModuleStorage();
        s.accountingToken.burnFrom(s.strategy, amount);
        IERC20(s.baseAsset).safeTransferFrom(s.safe, recipient, amount);
    }

    /// REWARDS ///

    /**
     * @notice Process rewards by minting accounting tokens
     * @param amount profits to mint
     */
    function processRewards(uint256 amount) external onlyRole(REWARDS_PROCESSOR_ROLE) checkAndResetCooldown {
        AccountingModuleStorage storage s = _getAccountingModuleStorage();
        _processRewards(amount, s._snapshots.length - 1);
    }

    /**
     * @notice Process rewards by minting accounting tokens with specific snapshot index
     * @param amount profits to mint
     * @param snapshotIndex index of the snapshot to compare against
     */
    function processRewards(
        uint256 amount,
        uint256 snapshotIndex
    )
        external
        onlyRole(REWARDS_PROCESSOR_ROLE)
        checkAndResetCooldown
    {
        _processRewards(amount, snapshotIndex);
    }

    /**
     * @notice Internal function to process rewards with snapshot validation
     * @param amount profits to mint
     * @param snapshotIndex index of the snapshot to compare against
     *
     * @dev This function validates rewards by comparing current PPS against a historical snapshot.
     * Using a past snapshot (rather than the most recent) helps prevent APR manipulation
     * by smoothing out reward distribution over time.
     *
     *
     * Example with daily processRewards calls:
     *
     * Day 0: PPS = 100  [snapshot 0]
     * Day 1: PPS = 101  [snapshot 1]
     * Day 2: PPS = 102  [snapshot 2]
     * Day 3: PPS = 107  [snapshot 3] ← Big jump due to delayed rewards
     *
     * If we only compared Day 2→3 (102→107):
     *   Daily return: 4.9% → ~720% APR (exceeds cap)
     *
     * Instead, compare Day 0→3 (100→107):
     *   Daily return: ~2.3% → ~240% APR (within sustainable range)
     *
     * This approach provides flexibility by allowing irregular reward distributions
     * while still enforcing APR limits. By comparing against historical snapshots,
     * the system can accommodate delayed or lump-sum rewards without triggering
     * false positives, while maintaining protection against actual APR manipulation.
     */
    function _processRewards(uint256 amount, uint256 snapshotIndex) internal {
        AccountingModuleStorage storage s = _getAccountingModuleStorage();
        // check if snapshot index is valid
        if (snapshotIndex >= s._snapshots.length) revert SnapshotIndexOutOfBounds(snapshotIndex);

        uint256 totalSupply = s.accountingToken.totalSupply();
        if (totalSupply < s.minRewardableAssets) revert TvlTooLow();

        IVault strategyVault = IVault(s.strategy);

        s.accountingToken.mintTo(s.strategy, amount);
        strategyVault.processAccounting();

        // check if apr is within acceptable bounds

        StrategySnapshot memory previousSnapshot = s._snapshots[snapshotIndex];

        uint256 currentPricePerShare = createStrategySnapshot().pricePerShare;

        // Check if APR is within acceptable bounds
        uint256 aprSinceLastSnapshot = calculateApr(
            previousSnapshot.pricePerShare, previousSnapshot.timestamp, currentPricePerShare, block.timestamp
        );

        if (aprSinceLastSnapshot > s.targetApy) revert AccountingLimitsExceeded(aprSinceLastSnapshot, s.targetApy);
    }

    function createStrategySnapshot() internal returns (StrategySnapshot memory) {
        AccountingModuleStorage storage s = _getAccountingModuleStorage();
        IVault strategyVault = IVault(s.strategy);

        // Take snapshot of current state
        uint256 currentPricePerShare = strategyVault.convertToAssets(10 ** strategyVault.decimals());

        StrategySnapshot memory snapshot = StrategySnapshot({
            timestamp: block.timestamp,
            pricePerShare: currentPricePerShare,
            totalSupply: strategyVault.totalSupply(),
            totalAssets: strategyVault.totalAssets()
        });

        s._snapshots.push(snapshot);

        return snapshot;
    }

    /**
     * @notice Calculate APR based on price per share changes over time
     * @param previousPricePerShare The price per share at the start of the period
     * @param previousTimestamp The timestamp at the start of the period
     * @param currentPricePerShare The price per share at the end of the period
     * @param currentTimestamp The timestamp at the end of the period
     * @return apr The calculated APR in basis points
     */
    function calculateApr(
        uint256 previousPricePerShare,
        uint256 previousTimestamp,
        uint256 currentPricePerShare,
        uint256 currentTimestamp
    )
        public
        pure
        returns (uint256 apr)
    {
        /*
        ppsStart - Price per share at the start of the period
        ppsEnd - Price per share at the end of the period
        t - Time period in years*
        Formula: (ppsEnd - ppsStart) / (ppsStart * t)
        */

        // Ensure timestamps are ordered (current should be after previous)
        if (currentTimestamp <= previousTimestamp) revert CurrentTimestampBeforePreviousTimestamp();

        // Prevent division by zero
        if (previousPricePerShare == 0) revert InvariantViolation();

        return (currentPricePerShare - previousPricePerShare) * YEAR * DIVISOR / previousPricePerShare
            / (currentTimestamp - previousTimestamp);
    }

    /// LOSS ///

    /**
     * @notice Process losses by burning accounting tokens
     * @param amount losses to burn
     */
    function processLosses(uint256 amount) external onlyRole(LOSS_PROCESSOR_ROLE) checkAndResetCooldown {
        AccountingModuleStorage storage s = _getAccountingModuleStorage();
        uint256 totalSupply = s.accountingToken.totalSupply();
        if (totalSupply < 10 ** s.accountingToken.decimals()) revert TvlTooLow();

        // check bound on losses
        if (amount > totalSupply * s.lowerBound / DIVISOR) {
            revert LossLimitsExceeded(amount, totalSupply * s.lowerBound / DIVISOR);
        }

        s.accountingToken.burnFrom(s.strategy, amount);
        IVault(s.strategy).processAccounting();

        createStrategySnapshot();
    }

    /// ADMIN ///

    /**
     * @notice Set target APY to determine upper bound. e.g. 1000 = 10% APY
     * @param targetApyInBips in bips
     * @dev hard max of 100% targetApy
     */
    function setTargetApy(uint256 targetApyInBips) external onlyRole(SAFE_MANAGER_ROLE) {
        _setTargetApy(targetApyInBips);
    }

    /**
     * @notice Set lower bound as a function of tvl for losses. e.g. 1000 = 10% of tvl
     * @param _lowerBound in bips, as a function of % of tvl
     * @dev hard max of 50% of tvl
     */
    function setLowerBound(uint256 _lowerBound) external onlyRole(SAFE_MANAGER_ROLE) {
        _setLowerBound(_lowerBound);
    }

    /**
     * @notice Set cooldown in seconds between every processing of rewards/losses
     * @param cooldownSeconds_ new cooldown seconds
     */
    function setCooldownSeconds(uint16 cooldownSeconds_) external onlyRole(SAFE_MANAGER_ROLE) {
        _setCooldownSeconds(cooldownSeconds_);
    }

    /**
     * @notice Set a new safe address
     * @param newSafe new safe address
     */
    function setSafeAddress(address newSafe) external virtual onlyRole(SAFE_MANAGER_ROLE) {
        _setSafeAddress(newSafe);
    }

    /// ADMIN INTERNAL SETTERS ///

    function _setTargetApy(uint256 targetApyInBips) internal {
        AccountingModuleStorage storage s = _getAccountingModuleStorage();
        if (targetApyInBips > 10 * DIVISOR) revert InvariantViolation();

        emit TargetApyUpdated(targetApyInBips, s.targetApy);
        s.targetApy = targetApyInBips;
    }

    function _setLowerBound(uint256 _lowerBound) internal {
        AccountingModuleStorage storage s = _getAccountingModuleStorage();
        if (_lowerBound > MAX_LOWER_BOUND) revert InvariantViolation();

        emit LowerBoundUpdated(_lowerBound, s.lowerBound);
        s.lowerBound = _lowerBound;
    }

    function _setCooldownSeconds(uint16 cooldownSeconds_) internal {
        AccountingModuleStorage storage s = _getAccountingModuleStorage();
        emit CooldownSecondsUpdated(cooldownSeconds_, s.cooldownSeconds);
        s.cooldownSeconds = cooldownSeconds_;
    }

    function _setSafeAddress(address newSafe) internal {
        AccountingModuleStorage storage s = _getAccountingModuleStorage();
        if (newSafe == address(0)) revert ZeroAddress();
        emit SafeUpdated(newSafe, s.safe);
        s.safe = newSafe;
    }

    /// VIEWS ///

    function baseAsset() external view returns (address) {
        return _getAccountingModuleStorage().baseAsset;
    }

    function strategy() external view returns (address) {
        return _getAccountingModuleStorage().strategy;
    }

    function accountingToken() external view returns (IAccountingToken) {
        return _getAccountingModuleStorage().accountingToken;
    }

    function cooldownSeconds() external view returns (uint16) {
        return _getAccountingModuleStorage().cooldownSeconds;
    }

    function lowerBound() external view returns (uint256) {
        return _getAccountingModuleStorage().lowerBound;
    }

    function nextUpdateWindow() external view returns (uint64) {
        return _getAccountingModuleStorage().nextUpdateWindow;
    }

    function safe() external view returns (address) {
        return _getAccountingModuleStorage().safe;
    }

    function targetApy() external view returns (uint256) {
        return _getAccountingModuleStorage().targetApy;
    }

    function snapshotsLength() external view returns (uint256) {
        return _getAccountingModuleStorage()._snapshots.length;
    }

    function snapshots(uint256 index) external view returns (StrategySnapshot memory) {
        return _getAccountingModuleStorage()._snapshots[index];
    }

    function lastSnapshot() external view returns (StrategySnapshot memory) {
        AccountingModuleStorage storage s = _getAccountingModuleStorage();
        return s._snapshots[s._snapshots.length - 1];
    }
}

// SPDX-License-Identifier: BSD-3-Clause
pragma solidity ^0.8.24;

import {IVault} from "src/interface/IVault.sol";
import {IProvider} from "src/interface/IProvider.sol";
import {Math, IERC20} from "src/Common.sol";
import {Guard} from "src/module/Guard.sol";

library VaultLib {
    using Math for uint256;

    /// @custom:storage-location erc7201:openzeppelin.storage.ERC20
    struct ERC20Storage {
        mapping(address account => uint256) balances;
        mapping(address account => mapping(address spender => uint256)) allowances;
        uint256 totalSupply;
        string name;
        string symbol;
    }

    /**
     * @notice Get the ERC20 storage.
     * @return $ The ERC20 storage.
     */
    function getERC20Storage() public pure returns (ERC20Storage storage $) {
        assembly {
            // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.ERC20")) - 1)) & ~bytes32(uint256(0xff))
            $.slot := 0x52c63247e1f47db19d5ce0460030c497f067ca4cebf71ba98eeadabe20bace00
        }
    }

    /**
     * @notice Get the vault storage.
     * @return $ The vault storage.
     */
    function getVaultStorage() public pure returns (IVault.VaultStorage storage $) {
        assembly {
            // keccak256("yieldnest.storage.vault")
            $.slot := 0x22cdba5640455d74cb7564fb236bbbbaf66b93a0cc1bd221f1ee2a6b2d0a2427
        }
    }

    /**
     * @notice Get the asset storage.
     * @return $ The asset storage.
     */
    function getAssetStorage() public pure returns (IVault.AssetStorage storage $) {
        assembly {
            // keccak256("yieldnest.storage.asset")
            $.slot := 0x2dd192a2474c87efcf5ffda906a4b4f8a678b0e41f9245666251cfed8041e680
        }
    }

    /**
     * @notice Get the processor storage.
     * @return $ The processor storage.
     */
    function getProcessorStorage() public pure returns (IVault.ProcessorStorage storage $) {
        assembly {
            // keccak256("yieldnest.storage.vault")
            $.slot := 0x52bb806a772c899365572e319d3d6f49ed2259348d19ab0da8abccd4bd46abb5
        }
    }

    /**
     * @notice Get the fee storage.
     * @return $ The fee storage.
     */
    function getFeeStorage() public pure returns (IVault.FeeStorage storage $) {
        assembly {
            // keccak256("yieldnest.storage.fees")
            $.slot := 0xde924653ae91bd33356774e603163bd5862c93462f31acccae5f965be6e6599b
        }
    }

    /**
     * @notice Adds a new asset to the vault.
     * @param asset_ The address of the asset.
     * @param active_ Whether the asset is active or not.
     */
    function addAsset(address asset_, uint8 decimals_, bool active_) public {
        if (asset_ == address(0)) {
            revert IVault.ZeroAddress();
        }

        IVault.AssetStorage storage assetStorage = getAssetStorage();
        uint256 index = assetStorage.list.length;

        IVault.VaultStorage storage vaultStorage = getVaultStorage();

        // if native asset is counted the Base Asset should match the decimals count.
        if (index == 0 && vaultStorage.countNativeAsset && decimals_ != 18) {
            revert IVault.InvalidNativeAssetDecimals(decimals_);
        }

        // If this is the first asset, check that its decimals are the same as the vault's decimals
        if (index == 0 && decimals_ != vaultStorage.decimals) {
            revert IVault.InvalidAssetDecimals(decimals_);
        }

        // If this is not the first asset, check that its decimals are not higher than the base asset
        if (index > 0) {
            uint8 baseAssetDecimals = assetStorage.assets[assetStorage.list[0]].decimals;
            if (decimals_ > baseAssetDecimals) {
                revert IVault.InvalidAssetDecimals(decimals_);
            }
        }

        // Check if trying to add the Base Asset again
        if (index > 0 && asset_ == assetStorage.list[0]) {
            revert IVault.DuplicateAsset(asset_);
        }

        if (index > 0 && assetStorage.assets[asset_].index != 0) {
            revert IVault.DuplicateAsset(asset_);
        }
        assetStorage.assets[asset_] = IVault.AssetParams({active: active_, index: index, decimals: decimals_});
        assetStorage.list.push(asset_);

        emit IVault.NewAsset(asset_, decimals_, index);
    }

    /**
     * @notice Updates an existing asset's parameters in the vault.
     * @param index The index of the asset to update.
     * @param fields The AssetUpdateFields struct containing the updated fields.
     */
    function updateAsset(uint256 index, IVault.AssetUpdateFields calldata fields) public {
        IVault.AssetStorage storage assetStorage = getAssetStorage();
        if (index >= assetStorage.list.length) {
            revert IVault.InvalidAsset(address(0));
        }

        address asset_ = assetStorage.list[index];
        IVault.AssetParams storage assetParams = assetStorage.assets[asset_];
        assetParams.active = fields.active;
        emit IVault.UpdateAsset(index, asset_, fields);
    }

    /**
     * @notice Deletes an existing asset from the vault.
     * @param index The index of the asset to delete.
     */
    function deleteAsset(uint256 index) public {
        IVault.VaultStorage storage vaultStorage = getVaultStorage();
        if (index == 0) revert IVault.BaseAsset();
        if (index == vaultStorage.defaultAssetIndex) revert IVault.DefaultAsset();

        IVault.AssetStorage storage assetStorage = getAssetStorage();
        if (index >= assetStorage.list.length) {
            revert IVault.InvalidAsset(address(0));
        }
        address asset_ = assetStorage.list[index];
        if (IERC20(asset_).balanceOf(address(this)) > 0) {
            revert IVault.AssetNotEmpty(asset_);
        }

        assetStorage.list[index] = assetStorage.list[assetStorage.list.length - 1];
        assetStorage.list.pop();
        delete assetStorage.assets[asset_];

        // Update the index for the asset that was moved to the deleted position
        if (index < assetStorage.list.length) {
            address movedAsset = assetStorage.list[index];
            assetStorage.assets[movedAsset].index = index;
        }

        emit IVault.DeleteAsset(index, asset_);
    }

    /**
     * @notice Converts an asset amount to base units.
     * @param asset_ The address of the asset.
     * @param assets The amount of the asset.
     * @return baseAssets The equivalent amount in base units.
     */
    function convertAssetToBase(address asset_, uint256 assets) public view returns (uint256 baseAssets) {
        if (asset_ == address(0)) revert IVault.ZeroAddress();
        uint256 rate = IProvider(getVaultStorage().provider).getRate(asset_);
        baseAssets = assets.mulDiv(rate, 10 ** (getAssetStorage().assets[asset_].decimals), Math.Rounding.Floor);
    }

    /**
     * @notice Converts a base amount to asset units.
     * @param asset_ The address of the asset.
     * @param baseAssets The amount of the assets in base units.
     * @return assets The equivalent amount in asset units.
     */
    function convertBaseToAsset(address asset_, uint256 baseAssets) public view returns (uint256 assets) {
        if (asset_ == address(0)) revert IVault.ZeroAddress();
        uint256 rate = IProvider(getVaultStorage().provider).getRate(asset_);
        assets = baseAssets.mulDiv(10 ** (getAssetStorage().assets[asset_].decimals), rate, Math.Rounding.Floor);
    }

    /**
     * @notice Adds a given amount of base assets to the total assets.
     * @param baseAssets The amount of base assets to add.
     */
    function addTotalAssets(uint256 baseAssets) public {
        IVault.VaultStorage storage vaultStorage = getVaultStorage();
        if (!vaultStorage.alwaysComputeTotalAssets) {
            vaultStorage.totalAssets += baseAssets;
        }
    }

    /**
     * @notice Subtracts a given amount of base assets from the total assets.
     * @param baseAssets The amount of base assets to subtract.
     */
    function subTotalAssets(uint256 baseAssets) public {
        IVault.VaultStorage storage vaultStorage = getVaultStorage();
        if (!vaultStorage.alwaysComputeTotalAssets) {
            vaultStorage.totalAssets -= baseAssets;
        }
    }

    /**
     * @notice Converts a given amount of shares to assets.
     * @param asset_ The address of the asset.
     * @param shares The amount of shares to convert.
     * @param rounding The rounding direction.
     * @return assets The amount of assets.
     * @return baseAssets The amount of base assets.
     */
    function convertToAssets(address asset_, uint256 shares, Math.Rounding rounding)
        public
        view
        returns (uint256 assets, uint256 baseAssets)
    {
        uint256 totalAssets = IVault(address(this)).totalBaseAssets();
        uint256 totalSupply = getERC20Storage().totalSupply;
        baseAssets = shares.mulDiv(totalAssets + 1, totalSupply + 1, rounding);
        assets = convertBaseToAsset(asset_, baseAssets);
    }

    /**
     * @notice Converts a given amount of assets to shares.
     * @param asset_ The address of the asset.
     * @param assets The amount of assets to convert.
     * @param rounding The rounding direction.
     * @return (shares, baseAssets) The equivalent amount of shares.
     */
    function convertToShares(address asset_, uint256 assets, Math.Rounding rounding)
        public
        view
        returns (uint256, uint256)
    {
        uint256 totalAssets = IVault(address(this)).totalBaseAssets();
        uint256 totalSupply = getERC20Storage().totalSupply;
        uint256 baseAssets = convertAssetToBase(asset_, assets);
        uint256 shares = baseAssets.mulDiv(totalSupply + 1, totalAssets + 1, rounding);
        return (shares, baseAssets);
    }

    /**
     * @notice Sets the processor rule for a given contract address and function signature.
     * @param target The address of the target contract.
     * @param functionSig The function signature.
     * @param rule The function rule.
     */
    function setProcessorRule(address target, bytes4 functionSig, IVault.FunctionRule calldata rule) public {
        getProcessorStorage().rules[target][functionSig] = rule;
        emit IVault.SetProcessorRule(target, functionSig, rule);
    }

    /**
     * @notice Sets the provider.
     * @param provider_ The address of the provider.
     */
    function setProvider(address provider_) public {
        if (provider_ == address(0)) {
            revert IVault.ZeroAddress();
        }
        getVaultStorage().provider = provider_;
        emit IVault.SetProvider(provider_);
    }

    /**
     * @notice Sets the buffer strategy.
     * @param buffer_ The address of the buffer strategy.
     */
    function setBuffer(address buffer_) public {
        if (buffer_ == address(0)) {
            revert IVault.ZeroAddress();
        }

        getVaultStorage().buffer = buffer_;
        emit IVault.SetBuffer(buffer_);
    }

    /**
     * @notice Computes the total assets in the vault.
     * @return totalBaseBalance The total base balance of the vault.
     */
    function computeTotalAssets() public view returns (uint256 totalBaseBalance) {
        IVault.VaultStorage storage vaultStorage = getVaultStorage();

        // Assumes native asset has same decimals as asset() (the base asset)
        totalBaseBalance = vaultStorage.countNativeAsset ? address(this).balance : 0;

        IVault.AssetStorage storage assetStorage = getAssetStorage();
        address[] memory assetList = assetStorage.list;
        uint256 assetListLength = assetList.length;

        for (uint256 i = 0; i < assetListLength; i++) {
            uint256 balance = IERC20(assetList[i]).balanceOf(address(this));
            if (balance == 0) continue;
            totalBaseBalance += convertAssetToBase(assetList[i], balance);
        }
    }

    /**
     * @notice Processes a series of calls to target contracts.
     * @param targets The addresses of the target contracts.
     * @param values The values to send with the calls.
     * @param data The calldata for the calls.
     * @return returnData The return data from the calls.
     */
    function processor(address[] calldata targets, uint256[] memory values, bytes[] calldata data)
        public
        returns (bytes[] memory returnData)
    {
        uint256 targetsLength = targets.length;
        returnData = new bytes[](targetsLength);

        for (uint256 i = 0; i < targetsLength; i++) {
            Guard.validateCall(targets[i], values[i], data[i]);

            (bool success, bytes memory returnData_) = targets[i].call{value: values[i]}(data[i]);
            if (!success) {
                revert IVault.ProcessFailed(data[i], returnData_);
            }
            returnData[i] = returnData_;
        }
        emit IVault.ProcessSuccess(targets, values, returnData);
    }
}

/* solhint-disable no-empty-blocks, no-unused-import */
// SPDX-License-Identifier: BSD-3-Clause
pragma solidity ^0.8.24;

import {AccessControlUpgradeable} from
    "lib/openzeppelin-contracts-upgradeable/contracts/access/AccessControlUpgradeable.sol";
import {Address} from "lib/openzeppelin-contracts/contracts/utils/Address.sol";
import {ERC20} from "lib/openzeppelin-contracts/contracts/token/ERC20/ERC20.sol";
import {ERC20PermitUpgradeable} from
    "lib/openzeppelin-contracts-upgradeable/contracts/token/ERC20/extensions/ERC20PermitUpgradeable.sol";
import {ERC20Upgradeable} from "lib/openzeppelin-contracts-upgradeable/contracts/token/ERC20/ERC20Upgradeable.sol";
import {IAccessControl} from "lib/openzeppelin-contracts/contracts/access/IAccessControl.sol";
import {IERC20} from "lib/openzeppelin-contracts/contracts/interfaces/IERC20.sol";
import {IERC20Metadata} from "lib/openzeppelin-contracts/contracts/interfaces/IERC20Metadata.sol";
import {IERC20Permit} from "lib/openzeppelin-contracts/contracts/token/ERC20/extensions/IERC20Permit.sol";
import {IERC4626} from "lib/openzeppelin-contracts/contracts/interfaces/IERC4626.sol";
import {Math} from "lib/openzeppelin-contracts/contracts/utils/math/Math.sol";
import {ProxyAdmin} from "lib/openzeppelin-contracts/contracts/proxy/transparent/ProxyAdmin.sol";
import {ReentrancyGuardUpgradeable} from
    "lib/openzeppelin-contracts-upgradeable/contracts/utils/ReentrancyGuardUpgradeable.sol";
import {SafeERC20} from "lib/openzeppelin-contracts/contracts/token/ERC20/utils/SafeERC20.sol";
import {TimelockController} from "lib/openzeppelin-contracts/contracts/governance/TimelockController.sol";
import {TransparentUpgradeableProxy} from
    "lib/openzeppelin-contracts/contracts/proxy/transparent/TransparentUpgradeableProxy.sol";
import {IERC165} from "lib/openzeppelin-contracts/contracts/interfaces/IERC165.sol";
import {Initializable} from "lib/openzeppelin-contracts-upgradeable/contracts/proxy/utils/Initializable.sol";

contract Common {}

// SPDX-License-Identifier: BSD-3-Clause
pragma solidity ^0.8.24;

import {
    AccessControlUpgradeable,
    ERC20PermitUpgradeable,
    ERC20Upgradeable,
    IERC20,
    IERC20Metadata,
    Math,
    ReentrancyGuardUpgradeable,
    SafeERC20
} from "src/Common.sol";

import {VaultLib} from "src/library/VaultLib.sol";

import {IVault} from "src/interface/IVault.sol";
import {IStrategy} from "src/interface/IStrategy.sol";

/**
 * @title BaseVault
 * @notice Base contract for vault implementations that support multiple assets
 * @dev This contract implements the ERC4626 standard with extensions to support multiple assets
 *
 * The BaseVault has two key asset concepts:
 *
 * 1. Base Asset: The common denomination used internally for accounting.
 *    - All assets are converted to this base unit for consistent accounting
 *    - The base asset has a fixed decimal precision (typically 18 decimals)
 *    - totalBaseAssets() tracks the vault's total value in this base denomination
 *
 * 2. Default Asset: The underlying asset used for standard ERC4626 operations.
 *    - Specified by the defaultAssetIndex in VaultStorage
 *    - Returned by the asset() function
 *    - Used for deposit(), withdraw(), mint(), and redeem() when no asset is specified
 *       - Can be the same as base asset (defaultAssetIndex == 0)
 *    - Can be different from the base asset (defaultAssetIndex == 1)
 *
 *  REQUIREMENT: default Asset MUST be the underyling asset of Base Asset.
 *               Example: Default Asset is USDC, Base Asset is Wrapped USDC.
 *
 * The vault maintains a list of supported assets, each with their own decimal precision.
 * When assets enter or leave the vault, they are converted to/from the base asset denomination
 * for consistent accounting across different asset types.
 * The vault also includes a processAccounting function that updates the vault's total assets.
 * This function:
 * - Computes the current total assets by querying the buffer and other strategies
 * - Updates the vault's totalAssets storage value
 *
 * This accounting mechanism ensures the vault's reported asset values remain accurate over time,
 * gas efficiency with accuracy by:
 * - Using cached totalAssets values by default to save gas on frequent read operations
 * - Providing an explicit processAccounting() function that updates the cached value when needed
 * - Offering an alwaysComputeTotalAssets toggle for cases where real-time accuracy is preferred
 *   despite the higher gas cost of querying external contracts on each totalAssets() call
 */
abstract contract BaseVault is IVault, ERC20PermitUpgradeable, AccessControlUpgradeable, ReentrancyGuardUpgradeable {
    /// INITIALIZATION

    /**
     * @notice Internal function to initialize the vault.
     * @param admin The address of the admin.
     * @param name The name of the vault.
     * @param symbol The symbol of the vault.
     * @param decimals_ The number of decimals for the vault token.
     * @param paused_ Whether the vault should start in a paused state.
     * @param countNativeAsset_ Whether the vault should count the native asset.
     * @param alwaysComputeTotalAssets_ Whether the vault should always compute total assets.
     * @param defaultAssetIndex_ The index of the default asset in the asset list.
     */
    function _initialize(
        address admin,
        string memory name,
        string memory symbol,
        uint8 decimals_,
        bool paused_,
        bool countNativeAsset_,
        bool alwaysComputeTotalAssets_,
        uint256 defaultAssetIndex_
    ) internal virtual {
        __ERC20_init(name, symbol);
        __AccessControl_init();
        __ReentrancyGuard_init();
        _grantRole(DEFAULT_ADMIN_ROLE, admin);

        VaultStorage storage vaultStorage = _getVaultStorage();
        vaultStorage.paused = paused_;
        if (decimals_ == 0) {
            revert InvalidDecimals();
        }
        vaultStorage.decimals = decimals_;
        vaultStorage.countNativeAsset = countNativeAsset_;
        vaultStorage.alwaysComputeTotalAssets = alwaysComputeTotalAssets_;

        // The defaultAssetIndex must be 0 or 1 because:
        // 1. When an asset is deleted, it's replaced with the last asset in the array
        // 2. The base asset (index 0) and default asset should never be deleted
        // 3. Therefore, they must be the first two positions in the array
        // 4. Or if defaultAssetIndex is 0, then the base asset is also the default asset
        if (defaultAssetIndex_ > 1) {
            revert InvalidDefaultAssetIndex(defaultAssetIndex_);
        }
        vaultStorage.defaultAssetIndex = defaultAssetIndex_;
    }

    /**
     * @notice Returns the address of the Default Asset.
     * @return address The address of the asset.
     * @dev The ERC4626-interface underlying asset is the default asset at defaultAssetIndex
     */
    function asset() public view virtual returns (address) {
        return _getAssetStorage().list[_getVaultStorage().defaultAssetIndex];
    }

    /**
     * @notice Returns the number of decimals of the vault.
     * @return uint256 The number of decimals.
     */
    function decimals() public view virtual override(ERC20Upgradeable, IERC20Metadata) returns (uint8) {
        return _getVaultStorage().decimals;
    }

    /**
     * @notice Returns the total assets held by the vault denominated in the default asset.
     * @dev The ERC4626 interface underyling asset is the default asset.
     * @return uint256 The total assets.
     */
    function totalAssets() public view virtual returns (uint256) {
        return VaultLib.convertBaseToAsset(asset(), totalBaseAssets());
    }

    /**
     * @notice Returns the total assets held by the vault denominated in the Base Asset.
     * @dev Either returns the cached total assets or computes them in real-time
     *      based on the alwaysComputeTotalAssets setting.
     * @return uint256 The total base assets.
     */
    function totalBaseAssets() public view virtual returns (uint256) {
        if (_getVaultStorage().alwaysComputeTotalAssets) {
            return computeTotalAssets();
        }
        return _getVaultStorage().totalAssets;
    }

    /**
     * @notice Returns if the vault is counting native assets.
     * @return bool True if the vault is counting native assets.
     */
    function countNativeAsset() public view virtual returns (bool) {
        return _getVaultStorage().countNativeAsset;
    }

    /**
     * @notice Returns the index of the default asset.
     * @return uint256 The index of the default asset.
     */
    function defaultAssetIndex() public view virtual returns (uint256) {
        return _getVaultStorage().defaultAssetIndex;
    }

    /**
     * @notice Converts a given amount of assets to shares.
     * @param assets The amount of assets to convert.
     * @return shares The equivalent amount of shares.
     */
    function convertToShares(uint256 assets) public view virtual returns (uint256 shares) {
        (shares,) = _convertToShares(asset(), assets, Math.Rounding.Floor);
    }

    /**
     * @notice Converts a given amount of shares to assets.
     * @param shares The amount of shares to convert.
     * @return assets The equivalent amount of assets.
     */
    function convertToAssets(uint256 shares) public view virtual returns (uint256 assets) {
        (assets,) = _convertToAssets(asset(), shares, Math.Rounding.Floor);
    }

    /**
     * @notice Previews the amount of shares that would be received for a given amount of assets.
     * @param assets The amount of assets to deposit.
     * @return shares The equivalent amount of shares.
     */
    function previewDeposit(uint256 assets) public view virtual returns (uint256 shares) {
        (shares,) = _convertToShares(asset(), assets, Math.Rounding.Floor);
    }

    /**
     * @notice Previews the amount of assets that would be required to mint a given amount of shares.
     * @param shares The amount of shares to mint.
     * @return assets The equivalent amount of assets.
     */
    function previewMint(uint256 shares) public view virtual returns (uint256 assets) {
        (assets,) = _convertToAssets(asset(), shares, Math.Rounding.Ceil);
    }

    /**
     * @notice Previews the amount of shares that would be required to withdraw a given amount of assets.
     * @param assets The amount of assets to withdraw.
     * @return shares The equivalent amount of shares.
     */
    function previewWithdraw(uint256 assets) public view virtual returns (uint256 shares) {
        uint256 fee = _feeOnRaw(assets);
        (shares,) = _convertToShares(asset(), assets + fee, Math.Rounding.Ceil);
    }

    /**
     * @notice Previews the amount of assets that would be received for a given amount of shares.
     * @param shares The amount of shares to redeem.
     * @return assets The equivalent amount of assets.
     */
    function previewRedeem(uint256 shares) public view virtual returns (uint256 assets) {
        (assets,) = _convertToAssets(asset(), shares, Math.Rounding.Floor);
        return assets - _feeOnTotal(assets);
    }

    /**
     * @notice Returns the maximum amount of assets that can be deposited by a given owner.
     * @return uint256 The maximum amount of assets.
     */
    function maxDeposit(address) public view virtual returns (uint256) {
        if (paused()) {
            return 0;
        }
        return type(uint256).max;
    }

    /**
     * @notice Returns the maximum amount of shares that can be minted.
     * @return uint256 The maximum amount of shares.
     */
    function maxMint(address) public view virtual returns (uint256) {
        if (paused()) {
            return 0;
        }
        return type(uint256).max;
    }

    /**
     * @notice Returns the maximum amount of assets that can be withdrawn by a given owner.
     * @param owner The address of the owner.
     * @return uint256 The maximum amount of assets.
     */
    function maxWithdraw(address owner) public view virtual returns (uint256) {
        if (paused()) {
            return 0;
        }

        uint256 bufferAssets = IStrategy(buffer()).maxWithdraw(address(this));
        if (bufferAssets == 0) {
            return 0;
        }

        uint256 ownerShares = balanceOf(owner);
        uint256 maxAssets = previewRedeem(ownerShares);

        return bufferAssets < maxAssets ? bufferAssets : maxAssets;
    }

    /**
     * @notice Returns the maximum amount of shares that can be redeemed by a given owner.
     * @param owner The address of the owner.
     * @return uint256 The maximum amount of shares.
     */
    function maxRedeem(address owner) public view virtual returns (uint256) {
        if (paused()) {
            return 0;
        }

        uint256 bufferAssets = IStrategy(buffer()).maxWithdraw(address(this));
        if (bufferAssets == 0) {
            return 0;
        }

        uint256 ownerShares = balanceOf(owner);
        return bufferAssets < previewRedeem(ownerShares) ? previewWithdraw(bufferAssets) : ownerShares;
    }

    /**
     * @notice Deposits a given amount of assets and assigns the equivalent amount of shares to the receiver.
     * @param assets The amount of assets to deposit.
     * @param receiver The address of the receiver.
     * @return uint256 The equivalent amount of shares.
     */
    function deposit(uint256 assets, address receiver) public virtual nonReentrant returns (uint256) {
        if (paused()) {
            revert Paused();
        }
        (uint256 shares, uint256 baseAssets) = _convertToShares(asset(), assets, Math.Rounding.Floor);
        _deposit(asset(), _msgSender(), receiver, assets, shares, baseAssets);
        return shares;
    }

    /**
     * @notice Mints a given amount of shares and assigns the equivalent amount of assets to the receiver.
     * @param shares The amount of shares to mint.
     * @param receiver The address of the receiver.
     * @return uint256 The equivalent amount of assets.
     */
    function mint(uint256 shares, address receiver) public virtual nonReentrant returns (uint256) {
        if (paused()) {
            revert Paused();
        }
        (uint256 assets, uint256 baseAssets) = _convertToAssets(asset(), shares, Math.Rounding.Floor);
        _deposit(asset(), _msgSender(), receiver, assets, shares, baseAssets);
        return assets;
    }

    /**
     * @notice Withdraws a given amount of assets and burns the equivalent amount of shares from the owner.
     * @param assets The amount of assets to withdraw.
     * @param receiver The address of the receiver.
     * @param owner The address of the owner.
     * @return shares The equivalent amount of shares.
     */
    function withdraw(uint256 assets, address receiver, address owner)
        public
        virtual
        nonReentrant
        returns (uint256 shares)
    {
        if (paused()) {
            revert Paused();
        }
        uint256 maxAssets = maxWithdraw(owner);
        if (assets > maxAssets) {
            revert ExceededMaxWithdraw(owner, assets, maxAssets);
        }
        shares = previewWithdraw(assets);

        _withdraw(_msgSender(), receiver, owner, assets, shares);
    }

    /**
     * @notice Redeems a given amount of shares and transfers the equivalent amount of assets to the receiver.
     * @param shares The amount of shares to redeem.
     * @param receiver The address of the receiver.
     * @param owner The address of the owner.
     * @return assets The equivalent amount of assets.
     */
    function redeem(uint256 shares, address receiver, address owner)
        public
        virtual
        nonReentrant
        returns (uint256 assets)
    {
        if (paused()) {
            revert Paused();
        }
        uint256 maxShares = maxRedeem(owner);
        if (shares > maxShares) {
            revert ExceededMaxRedeem(owner, shares, maxShares);
        }
        assets = previewRedeem(shares);
        _withdraw(_msgSender(), receiver, owner, assets, shares);
    }

    //// 4626-MAX ////

    /**
     * @notice Returns the list of asset addresses.
     * @return addresses The list of asset addresses.
     */
    function getAssets() public view virtual returns (address[] memory) {
        return _getAssetStorage().list;
    }

    /**
     * @notice Returns the parameters of a given asset.
     * @param asset_ The address of the asset.
     * @return AssetParams The parameters of the asset.
     */
    function getAsset(address asset_) public view virtual returns (AssetParams memory) {
        return _getAssetStorage().assets[asset_];
    }

    /**
     * @notice Returns the function rule for a given contract address and function signature.
     * @param contractAddress The address of the contract.
     * @param funcSig The function signature.
     * @return FunctionRule The function rule.
     */
    function getProcessorRule(address contractAddress, bytes4 funcSig)
        public
        view
        virtual
        returns (FunctionRule memory)
    {
        return _getProcessorStorage().rules[contractAddress][funcSig];
    }

    /**
     * @notice Returns whether the vault is paused.
     * @return bool True if the vault is paused, false otherwise.
     */
    function paused() public view returns (bool) {
        return _getVaultStorage().paused;
    }

    /**
     * @notice Returns the address of the provider.
     * @return address The address of the provider.
     */
    function provider() public view returns (address) {
        return _getVaultStorage().provider;
    }

    /**
     * @notice Returns the address of the buffer strategy.
     * @return address The address of the buffer strategy.
     */
    function buffer() public view virtual returns (address) {
        return _getVaultStorage().buffer;
    }

    /**
     * @notice Previews the amount of shares that would be received for a given amount of assets for a specific asset.
     * @param asset_ The address of the asset.
     * @param assets The amount of assets to deposit.
     * @return shares The equivalent amount of shares.
     */
    function previewDepositAsset(address asset_, uint256 assets) public view virtual returns (uint256 shares) {
        (shares,) = _convertToShares(asset_, assets, Math.Rounding.Floor);
    }

    /**
     * @notice Deposits a given amount of assets for a specific asset and assigns shares to the receiver.
     * @param asset_ The address of the asset.
     * @param assets The amount of assets to deposit.
     * @param receiver The address of the receiver.
     * @return uint256 The equivalent amount of shares.
     */
    function depositAsset(address asset_, uint256 assets, address receiver)
        public
        virtual
        nonReentrant
        returns (uint256)
    {
        if (paused()) {
            revert Paused();
        }
        (uint256 shares, uint256 baseAssets) = _convertToShares(asset_, assets, Math.Rounding.Floor);
        _deposit(asset_, _msgSender(), receiver, assets, shares, baseAssets);
        return shares;
    }

    //// INTERNAL ////

    /**
     * @notice Internal function to handle deposits.
     * @param asset_ The address of the asset.
     * @param caller The address of the caller.
     * @param receiver The address of the receiver.
     * @param assets The amount of assets to deposit.
     * @param shares The amount of shares to mint.
     * @param baseAssets The base asset convertion of shares.
     */
    function _deposit(
        address asset_,
        address caller,
        address receiver,
        uint256 assets,
        uint256 shares,
        uint256 baseAssets
    ) internal virtual {
        if (!_getAssetStorage().assets[asset_].active) {
            revert AssetNotActive();
        }

        _addTotalAssets(baseAssets);

        SafeERC20.safeTransferFrom(IERC20(asset_), caller, address(this), assets);
        _mint(receiver, shares);

        // 4626 event
        emit Deposit(caller, receiver, assets, shares);

        // 4626-MAX event
        emit DepositAsset(caller, receiver, asset_, assets, baseAssets, shares);
    }

    /**
     * @notice Internal function to add to total assets.
     * @param baseAssets The amount of base assets to add.
     */
    function _addTotalAssets(uint256 baseAssets) internal virtual {
        VaultLib.addTotalAssets(baseAssets);
    }

    /**
     * @notice Internal function to subtract from total assets.
     * @param baseAssets The amount of base assets to subtract.
     */
    function _subTotalAssets(uint256 baseAssets) internal virtual {
        VaultLib.subTotalAssets(baseAssets);
    }

    /**
     * @notice Internal function to handle withdrawals.
     * @param caller The address of the caller.
     * @param receiver The address of the receiver.
     * @param owner The address of the owner.
     * @param assets The amount of assets to withdraw.
     * @param shares The equivalent amount of shares.
     */
    function _withdraw(address caller, address receiver, address owner, uint256 assets, uint256 shares)
        internal
        virtual
    {
        VaultStorage storage vaultStorage = _getVaultStorage();
        _subTotalAssets(VaultLib.convertAssetToBase(asset(), assets));
        if (caller != owner) {
            _spendAllowance(owner, caller, shares);
        }

        // NOTE: burn shares before withdrawing the assets
        _burn(owner, shares);

        IStrategy(vaultStorage.buffer).withdraw(assets, receiver, address(this));

        emit Withdraw(caller, receiver, owner, assets, shares);
    }

    /**
     * @notice Internal function to convert vault shares to the base asset.
     * @param asset_ The address of the asset.
     * @param shares The amount of shares to convert.
     * @param rounding The rounding direction.
     * @return (uint256 assets, uint256 baseAssets) The equivalent amount of assets.
     */
    function _convertToAssets(address asset_, uint256 shares, Math.Rounding rounding)
        internal
        view
        virtual
        returns (uint256, uint256)
    {
        return VaultLib.convertToAssets(asset_, shares, rounding);
    }

    /**
     * @notice Internal function to convert assets to shares.
     * @param asset_ The address of the asset.
     * @param assets The amount of assets to convert.
     * @param rounding The rounding direction.
     * @return (uint256 shares, uint256 baseAssets) The equivalent amount of shares.
     */
    function _convertToShares(address asset_, uint256 assets, Math.Rounding rounding)
        internal
        view
        virtual
        returns (uint256, uint256)
    {
        return VaultLib.convertToShares(asset_, assets, rounding);
    }

    /**
     * @notice Internal function to convert an asset amount to base denomination.
     * @param asset_ The address of the asset.
     * @param assets The amount of the asset.
     * @return uint256 The equivalent amount in base denomination.
     */
    function _convertAssetToBase(address asset_, uint256 assets) internal view virtual returns (uint256) {
        return VaultLib.convertAssetToBase(asset_, assets);
    }

    /**
     * @notice Internal function to convert base denominated amount to asset value.
     * @param asset_ The address of the asset.
     * @param assets The amount of the asset.
     * @return uint256 The equivalent amount of assets.
     */
    function _convertBaseToAsset(address asset_, uint256 assets) internal view virtual returns (uint256) {
        return VaultLib.convertBaseToAsset(asset_, assets);
    }

    /**
     * @notice Internal function to get the vault storage.
     * @return The vault storage.
     */
    function _getVaultStorage() internal pure virtual returns (VaultStorage storage) {
        return VaultLib.getVaultStorage();
    }

    /**
     * @notice Internal function to get the asset storage.
     * @return The asset storage.
     */
    function _getAssetStorage() internal pure returns (AssetStorage storage) {
        return VaultLib.getAssetStorage();
    }

    /**
     * @notice Internal function to get the processor storage.
     * @return The processor storage.
     */
    function _getProcessorStorage() internal pure returns (ProcessorStorage storage) {
        return VaultLib.getProcessorStorage();
    }

    //// ADMIN ////

    bytes32 public constant PROCESSOR_ROLE = keccak256("PROCESSOR_ROLE");
    bytes32 public constant PAUSER_ROLE = keccak256("PAUSER_ROLE");
    bytes32 public constant UNPAUSER_ROLE = keccak256("UNPAUSER_ROLE");
    bytes32 public constant PROVIDER_MANAGER_ROLE = keccak256("PROVIDER_MANAGER_ROLE");
    bytes32 public constant BUFFER_MANAGER_ROLE = keccak256("BUFFER_MANAGER_ROLE");
    bytes32 public constant ASSET_MANAGER_ROLE = keccak256("ASSET_MANAGER_ROLE");
    bytes32 public constant PROCESSOR_MANAGER_ROLE = keccak256("PROCESSOR_MANAGER_ROLE");

    /**
     * @notice Sets the provider.
     * @param provider_ The address of the provider.
     */
    function setProvider(address provider_) external virtual onlyRole(PROVIDER_MANAGER_ROLE) {
        VaultLib.setProvider(provider_);
    }

    /**
     * @notice Sets the buffer strategy.
     * @param buffer_ The address of the buffer strategy.
     */
    function setBuffer(address buffer_) external virtual onlyRole(BUFFER_MANAGER_ROLE) {
        VaultLib.setBuffer(buffer_);
    }

    /**
     * @notice Sets the processor rule for a given contract address and function signature.
     * @param target The address of the target contract.
     * @param functionSig The function signature.
     * @param rule The function rule.
     */
    function setProcessorRule(address target, bytes4 functionSig, FunctionRule calldata rule)
        public
        virtual
        onlyRole(PROCESSOR_MANAGER_ROLE)
    {
        _setProcessorRule(target, functionSig, rule);
    }

    /**
     * @notice Sets the processor rule for a given contract address and function signature.
     * @param target The address of the target contract.
     * @param functionSig The function signature.
     * @param rule The function rule.
     */
    function _setProcessorRule(address target, bytes4 functionSig, FunctionRule calldata rule) internal virtual {
        _getProcessorStorage().rules[target][functionSig] = rule;
        emit SetProcessorRule(target, functionSig, rule);
    }

    /**
     * @notice Sets the processor rule for a given contract address and function signature.
     * @param target The address of the target contract.
     * @param functionSig The function signature.
     * @param rule The function rule.
     */
    function setProcessorRules(address[] calldata target, bytes4[] calldata functionSig, FunctionRule[] calldata rule)
        public
        virtual
        onlyRole(PROCESSOR_MANAGER_ROLE)
    {
        uint256 targetLength = target.length;
        if (targetLength != functionSig.length || targetLength != rule.length) {
            revert InvalidArray();
        }

        for (uint256 i = 0; i < targetLength; i++) {
            _setProcessorRule(target[i], functionSig[i], rule[i]);
        }
    }

    /**
     * @notice Adds a new asset to the vault.
     * @param asset_ The address of the asset.
     * @param active_ Whether the asset is active or not.
     */
    function addAsset(address asset_, bool active_) public virtual onlyRole(ASSET_MANAGER_ROLE) {
        _addAsset(asset_, IERC20Metadata(asset_).decimals(), active_);
    }

    function _addAsset(address asset_, uint8 decimals_, bool active_) internal virtual {
        VaultLib.addAsset(asset_, decimals_, active_);
    }

    /**
     * @notice Updates an existing asset's parameters in the vault.
     * @param index The index of the asset to update.
     * @param fields The AssetUpdateFields struct containing the updated fields.
     */
    function updateAsset(uint256 index, AssetUpdateFields calldata fields)
        public
        virtual
        onlyRole(ASSET_MANAGER_ROLE)
    {
        _updateAsset(index, fields);
    }

    function _updateAsset(uint256 index, AssetUpdateFields calldata fields) internal virtual {
        VaultLib.updateAsset(index, fields);
    }

    /**
     * @notice Deletes an existing asset from the vault.
     * @param index The index of the asset to delete.
     */
    function deleteAsset(uint256 index) public virtual onlyRole(ASSET_MANAGER_ROLE) {
        _deleteAsset(index);
    }

    function _deleteAsset(uint256 index) internal virtual {
        VaultLib.deleteAsset(index);
    }

    /**
     * @notice Sets whether the vault should always compute total assets.
     * @param alwaysComputeTotalAssets_ Whether to always compute total assets.
     */
    function setAlwaysComputeTotalAssets(bool alwaysComputeTotalAssets_)
        external
        virtual
        onlyRole(ASSET_MANAGER_ROLE)
    {
        _getVaultStorage().alwaysComputeTotalAssets = alwaysComputeTotalAssets_;
        emit SetAlwaysComputeTotalAssets(alwaysComputeTotalAssets_);

        if (!alwaysComputeTotalAssets_) {
            _processAccounting();
        }
    }

    /**
     * @notice Returns whether the vault always computes total assets.
     * @return bool True if the vault always computes total assets.
     */
    function alwaysComputeTotalAssets() public view virtual returns (bool) {
        return _getVaultStorage().alwaysComputeTotalAssets;
    }

    /**
     * @notice Pauses the vault.
     */
    function pause() external virtual onlyRole(PAUSER_ROLE) {
        if (paused()) {
            revert Paused();
        }

        VaultStorage storage vaultStorage = _getVaultStorage();
        vaultStorage.paused = true;
        emit Pause(true);
    }

    /**
     * @notice Unpauses the vault.
     */
    function unpause() external virtual onlyRole(UNPAUSER_ROLE) {
        if (!paused()) {
            revert Unpaused();
        }

        VaultStorage storage vaultStorage = _getVaultStorage();
        if (provider() == address(0)) {
            revert ProviderNotSet();
        }
        vaultStorage.paused = false;
        emit Pause(false);
    }

    /**
     * @notice Processes the accounting of the vault by calculating the total base balance.
     * @dev This function iterates through the list of assets, gets their balances and rates,
     *      and updates the total assets denominated in the base asset.
     */
    function processAccounting() public virtual nonReentrant {
        _processAccounting();
    }

    function _processAccounting() internal virtual {
        uint256 totalBaseBalance = computeTotalAssets();

        _getVaultStorage().totalAssets = totalBaseBalance;
        // solhint-disable-next-line not-rely-on-time
        emit ProcessAccounting(block.timestamp, totalBaseBalance);
    }

    /**
     * @notice Computes the total assets in the vault.
     * @return totalBaseBalance The total assets in the vault.
     */
    function computeTotalAssets() public view virtual returns (uint256 totalBaseBalance) {
        totalBaseBalance = VaultLib.computeTotalAssets();
    }

    /**
     * @notice Processes a series of calls to target contracts.
     * @param targets The addresses of the target contracts.
     * @param values The values to send with the calls.
     * @param data The calldata for the calls.
     * @return returnData The return data from the calls.
     */
    function processor(address[] calldata targets, uint256[] memory values, bytes[] calldata data)
        external
        virtual
        onlyRole(PROCESSOR_ROLE)
        returns (bytes[] memory returnData)
    {
        return VaultLib.processor(targets, values, data);
    }

    constructor() {
        _disableInitializers();
    }

    /**
     * @notice Fallback function to handle native asset transfers.
     */
    receive() external payable {
        emit NativeDeposit(msg.value);
    }

    /// FEES ///
    /**
     * @notice Returns the fee on raw assets where the fee would get added on top of the assets.
     * @param assets The amount of assets.
     * @return The fee on raw assets.
     */
    function _feeOnRaw(uint256 assets) public view virtual override returns (uint256);

    /**
     * @notice Returns the fee on total assets where the fee is already included.
     * @param assets The amount of assets.
     * @return The fee on total assets.
     */
    function _feeOnTotal(uint256 assets) public view virtual override returns (uint256);
}

// SPDX-License-Identifier: BSD-3-Clause
pragma solidity ^0.8.24;

interface IBaseStrategy {
    struct BaseStrategyStorage {
        bool hasAllocators;
        mapping(address => bool) isAssetWithdrawable;
    }

    struct SyncStrategyStorage {
        bool syncDeposit;
        bool syncWithdraw;
    }

    event WithdrawAsset(
        address indexed sender,
        address indexed receiver,
        address indexed owner,
        address asset,
        uint256 assets,
        uint256 shares
    );

    event SetHasAllocator(bool hasAllocator);
    event SetAssetWithdrawable(address asset, bool isWithdrawable);

    error AssetNotWithdrawable();

    /// ADMIN
    function getHasAllocator() external view returns (bool hasAllocators);
    function setHasAllocator(bool hasAllocators_) external;

    function getAssetWithdrawable(address asset) external view returns (bool isWithdrawable);
    function setAssetWithdrawable(address asset, bool isWithdrawable) external;

    function maxWithdrawAsset(address asset_, address owner) external view returns (uint256 maxAssets);
    function maxRedeemAsset(address asset_, address owner) external view returns (uint256 maxShares);
    function previewMintAsset(address asset_, uint256 shares) external view returns (uint256 assets);
    function previewRedeemAsset(address asset_, uint256 shares) external view returns (uint256 assets);
    function previewWithdrawAsset(address asset_, uint256 assets) external view returns (uint256 shares);
    function withdrawAsset(address asset_, uint256 assets, address receiver, address owner)
        external
        returns (uint256 shares);
    function redeemAsset(address asset_, uint256 shares, address receiver, address owner)
        external
        returns (uint256 assets);
    function addAsset(address asset_, uint8 decimals_, bool depositable_, bool withdrawable_) external;
    function addAsset(address asset_, bool depositable_, bool withdrawable_) external;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);

    /**
     * @dev Returns the value of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the value of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves a `value` amount of tokens from the caller's account to `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, uint256 value) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
     * caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the
     * allowance mechanism. `value` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address from, address to, uint256 value) external returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../IERC20.sol";

/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 */
interface IERC20Metadata is IERC20 {
    /**
     * @dev Returns the name of the token.
     */
    function name() external view returns (string memory);

    /**
     * @dev Returns the symbol of the token.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the decimals places of the token.
     */
    function decimals() external view returns (uint8);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)

pragma solidity ^0.8.20;

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }

    function _contextSuffixLength() internal view virtual returns (uint256) {
        return 0;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/draft-IERC6093.sol)
pragma solidity ^0.8.20;

/**
 * @dev Standard ERC20 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC20 tokens.
 */
interface IERC20Errors {
    /**
     * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     * @param balance Current balance for the interacting account.
     * @param needed Minimum amount required to perform a transfer.
     */
    error ERC20InsufficientBalance(address sender, uint256 balance, uint256 needed);

    /**
     * @dev Indicates a failure with the token `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     */
    error ERC20InvalidSender(address sender);

    /**
     * @dev Indicates a failure with the token `receiver`. Used in transfers.
     * @param receiver Address to which tokens are being transferred.
     */
    error ERC20InvalidReceiver(address receiver);

    /**
     * @dev Indicates a failure with the `spender`’s `allowance`. Used in transfers.
     * @param spender Address that may be allowed to operate on tokens without being their owner.
     * @param allowance Amount of tokens a `spender` is allowed to operate with.
     * @param needed Minimum amount required to perform a transfer.
     */
    error ERC20InsufficientAllowance(address spender, uint256 allowance, uint256 needed);

    /**
     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
     * @param approver Address initiating an approval operation.
     */
    error ERC20InvalidApprover(address approver);

    /**
     * @dev Indicates a failure with the `spender` to be approved. Used in approvals.
     * @param spender Address that may be allowed to operate on tokens without being their owner.
     */
    error ERC20InvalidSpender(address spender);
}

/**
 * @dev Standard ERC721 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC721 tokens.
 */
interface IERC721Errors {
    /**
     * @dev Indicates that an address can't be an owner. For example, `address(0)` is a forbidden owner in EIP-20.
     * Used in balance queries.
     * @param owner Address of the current owner of a token.
     */
    error ERC721InvalidOwner(address owner);

    /**
     * @dev Indicates a `tokenId` whose `owner` is the zero address.
     * @param tokenId Identifier number of a token.
     */
    error ERC721NonexistentToken(uint256 tokenId);

    /**
     * @dev Indicates an error related to the ownership over a particular token. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     * @param tokenId Identifier number of a token.
     * @param owner Address of the current owner of a token.
     */
    error ERC721IncorrectOwner(address sender, uint256 tokenId, address owner);

    /**
     * @dev Indicates a failure with the token `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     */
    error ERC721InvalidSender(address sender);

    /**
     * @dev Indicates a failure with the token `receiver`. Used in transfers.
     * @param receiver Address to which tokens are being transferred.
     */
    error ERC721InvalidReceiver(address receiver);

    /**
     * @dev Indicates a failure with the `operator`’s approval. Used in transfers.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     * @param tokenId Identifier number of a token.
     */
    error ERC721InsufficientApproval(address operator, uint256 tokenId);

    /**
     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
     * @param approver Address initiating an approval operation.
     */
    error ERC721InvalidApprover(address approver);

    /**
     * @dev Indicates a failure with the `operator` to be approved. Used in approvals.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     */
    error ERC721InvalidOperator(address operator);
}

/**
 * @dev Standard ERC1155 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC1155 tokens.
 */
interface IERC1155Errors {
    /**
     * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     * @param balance Current balance for the interacting account.
     * @param needed Minimum amount required to perform a transfer.
     * @param tokenId Identifier number of a token.
     */
    error ERC1155InsufficientBalance(address sender, uint256 balance, uint256 needed, uint256 tokenId);

    /**
     * @dev Indicates a failure with the token `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     */
    error ERC1155InvalidSender(address sender);

    /**
     * @dev Indicates a failure with the token `receiver`. Used in transfers.
     * @param receiver Address to which tokens are being transferred.
     */
    error ERC1155InvalidReceiver(address receiver);

    /**
     * @dev Indicates a failure with the `operator`’s approval. Used in transfers.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     * @param owner Address of the current owner of a token.
     */
    error ERC1155MissingApprovalForAll(address operator, address owner);

    /**
     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
     * @param approver Address initiating an approval operation.
     */
    error ERC1155InvalidApprover(address approver);

    /**
     * @dev Indicates a failure with the `operator` to be approved. Used in approvals.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     */
    error ERC1155InvalidOperator(address operator);

    /**
     * @dev Indicates an array length mismatch between ids and values in a safeBatchTransferFrom operation.
     * Used in batch transfers.
     * @param idsLength Length of the array of token identifiers
     * @param valuesLength Length of the array of token amounts
     */
    error ERC1155InvalidArrayLength(uint256 idsLength, uint256 valuesLength);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Permit.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
 *
 * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
 * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
 * need to send a transaction, and thus is not required to hold Ether at all.
 *
 * ==== Security Considerations
 *
 * There are two important considerations concerning the use of `permit`. The first is that a valid permit signature
 * expresses an allowance, and it should not be assumed to convey additional meaning. In particular, it should not be
 * considered as an intention to spend the allowance in any specific way. The second is that because permits have
 * built-in replay protection and can be submitted by anyone, they can be frontrun. A protocol that uses permits should
 * take this into consideration and allow a `permit` call to fail. Combining these two aspects, a pattern that may be
 * generally recommended is:
 *
 * ```solidity
 * function doThingWithPermit(..., uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) public {
 *     try token.permit(msg.sender, address(this), value, deadline, v, r, s) {} catch {}
 *     doThing(..., value);
 * }
 *
 * function doThing(..., uint256 value) public {
 *     token.safeTransferFrom(msg.sender, address(this), value);
 *     ...
 * }
 * ```
 *
 * Observe that: 1) `msg.sender` is used as the owner, leaving no ambiguity as to the signer intent, and 2) the use of
 * `try/catch` allows the permit to fail and makes the code tolerant to frontrunning. (See also
 * {SafeERC20-safeTransferFrom}).
 *
 * Additionally, note that smart contract wallets (such as Argent or Safe) are not able to produce permit signatures, so
 * contracts should have entry points that don't rely on permit.
 */
interface IERC20Permit {
    /**
     * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
     * given ``owner``'s signed approval.
     *
     * IMPORTANT: The same issues {IERC20-approve} has related to transaction
     * ordering also apply here.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `deadline` must be a timestamp in the future.
     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
     * over the EIP712-formatted function arguments.
     * - the signature must use ``owner``'s current nonce (see {nonces}).
     *
     * For more information on the signature format, see the
     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
     * section].
     *
     * CAUTION: See Security Considerations above.
     */
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

    /**
     * @dev Returns the current nonce for `owner`. This value must be
     * included whenever a signature is generated for {permit}.
     *
     * Every successful call to {permit} increases ``owner``'s nonce by one. This
     * prevents a signature from being used multiple times.
     */
    function nonces(address owner) external view returns (uint256);

    /**
     * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.
     */
    // solhint-disable-next-line func-name-mixedcase
    function DOMAIN_SEPARATOR() external view returns (bytes32);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/Address.sol)

pragma solidity ^0.8.20;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev The ETH balance of the account is not enough to perform the operation.
     */
    error AddressInsufficientBalance(address account);

    /**
     * @dev There's no code at `target` (it is not a contract).
     */
    error AddressEmptyCode(address target);

    /**
     * @dev A call to an address target failed. The target may have reverted.
     */
    error FailedInnerCall();

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.8.20/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        if (address(this).balance < amount) {
            revert AddressInsufficientBalance(address(this));
        }

        (bool success, ) = recipient.call{value: amount}("");
        if (!success) {
            revert FailedInnerCall();
        }
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason or custom error, it is bubbled
     * up by this function (like regular Solidity function calls). However, if
     * the call reverted with no returned reason, this function reverts with a
     * {FailedInnerCall} error.
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        if (address(this).balance < value) {
            revert AddressInsufficientBalance(address(this));
        }
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and reverts if the target
     * was not a contract or bubbling up the revert reason (falling back to {FailedInnerCall}) in case of an
     * unsuccessful call.
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata
    ) internal view returns (bytes memory) {
        if (!success) {
            _revert(returndata);
        } else {
            // only check if target is a contract if the call was successful and the return data is empty
            // otherwise we already know that it was a contract
            if (returndata.length == 0 && target.code.length == 0) {
                revert AddressEmptyCode(target);
            }
            return returndata;
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and reverts if it wasn't, either by bubbling the
     * revert reason or with a default {FailedInnerCall} error.
     */
    function verifyCallResult(bool success, bytes memory returndata) internal pure returns (bytes memory) {
        if (!success) {
            _revert(returndata);
        } else {
            return returndata;
        }
    }

    /**
     * @dev Reverts with returndata if present. Otherwise reverts with {FailedInnerCall}.
     */
    function _revert(bytes memory returndata) private pure {
        // Look for revert reason and bubble it up if present
        if (returndata.length > 0) {
            // The easiest way to bubble the revert reason is using memory via assembly
            /// @solidity memory-safe-assembly
            assembly {
                let returndata_size := mload(returndata)
                revert(add(32, returndata), returndata_size)
            }
        } else {
            revert FailedInnerCall();
        }
    }
}

// SPDX-License-Identifier: BSD-3-Clause
pragma solidity ^0.8.28;

import { IERC20, IERC20Metadata } from "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import { Initializable } from "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import { ERC20Upgradeable } from "@openzeppelin/contracts-upgradeable/token/ERC20/ERC20Upgradeable.sol";
import { AccessControlUpgradeable } from "@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol";
import { IAccountingModule } from "./AccountingModule.sol";

interface IAccountingToken is IERC20, IERC20Metadata {
    function burnFrom(address burnAddress, uint256 burnAmount) external;
    function mintTo(address mintAddress, uint256 mintAmount) external;

    function TRACKED_ASSET() external view returns (address);
}

/**
 * @notice Storage struct for AccountingToken
 */
struct AccountingTokenStorage {
    address accountingModule;
}

/**
 * Accounting token that keeps track of baseAsset amount transferred to safe.
 */
contract AccountingToken is Initializable, ERC20Upgradeable, AccessControlUpgradeable {
    error Unauthorized();
    error NotAllowed();
    error ZeroAddress();
    error AccountingTokenMismatch();
    error BaseAssetMismatch();

    event AccountingModuleUpdated(address newValue, address oldValue);

    address public immutable TRACKED_ASSET;

    /// @notice Storage slot for AccountingToken data
    bytes32 private constant ACCOUNTING_TOKEN_STORAGE_SLOT = keccak256("yieldnest.storage.accountingToken");

    /// @custom:oz-upgrades-unsafe-allow constructor
    constructor(address trackedAsset) {
        _disableInitializers();
        TRACKED_ASSET = trackedAsset;
    }

    /**
     * @notice Get the storage struct
     */
    function _getAccountingTokenStorage() internal pure returns (AccountingTokenStorage storage s) {
        bytes32 slot = ACCOUNTING_TOKEN_STORAGE_SLOT;
        assembly {
            s.slot := slot
        }
    }

    /**
     * @param admin The address of the admin.
     * @param name_ The name of the accountingToken.
     * @param symbol_ The symbol of accountingToken.
     */
    function initialize(address admin, string memory name_, string memory symbol_) external virtual initializer {
        if (admin == address(0)) revert ZeroAddress();

        __ERC20_init(name_, symbol_);
        __AccessControl_init();
        _grantRole(DEFAULT_ADMIN_ROLE, admin);
    }

    modifier onlyAccounting() {
        if (msg.sender != _getAccountingTokenStorage().accountingModule) revert Unauthorized();
        _;
    }

    /**
     * @dev See {IERC20Metadata-decimals}.
     */
    function decimals() public view virtual override returns (uint8) {
        return IERC20Metadata(TRACKED_ASSET).decimals();
    }

    /**
     * @notice burn `burnAmount` from `burnAddress`
     * @param burnAddress address to burn from
     * @param burnAmount amount to burn
     */
    function burnFrom(address burnAddress, uint256 burnAmount) external onlyAccounting {
        _burn(burnAddress, burnAmount);
    }

    /**
     * @notice mints `mintAmount` to `mintAddress`
     * @param mintAddress address to mint to
     * @param mintAmount amount to mint
     */
    function mintTo(address mintAddress, uint256 mintAmount) external onlyAccounting {
        _mint(mintAddress, mintAmount);
    }

    /**
     * @dev should not ordinarily be transferred
     */
    function transferFrom(address, address, uint256) public virtual override returns (bool) {
        revert NotAllowed();
    }

    /**
     * @dev should not ordinarily be transferred
     */
    function transfer(address, uint256) public virtual override returns (bool) {
        revert NotAllowed();
    }

    /**
     * Update accounting module address
     * @param accountingModule_ new accounting module address
     */
    function setAccountingModule(address accountingModule_) external onlyRole(DEFAULT_ADMIN_ROLE) {
        if (accountingModule_ == address(0)) revert ZeroAddress();
        AccountingTokenStorage storage s = _getAccountingTokenStorage();
        emit AccountingModuleUpdated(accountingModule_, s.accountingModule);

        if (address(IAccountingModule(accountingModule_).accountingToken()) != address(this)) {
            revert AccountingTokenMismatch();
        }

        if (IAccountingModule(accountingModule_).baseAsset() != TRACKED_ASSET) {
            revert BaseAssetMismatch();
        }

        s.accountingModule = accountingModule_;
    }

    /// VIEWS ///

    function accountingModule() public view returns (address) {
        return _getAccountingTokenStorage().accountingModule;
    }
}

// SPDX-License-Identifier: BSD-3-Clause
pragma solidity ^0.8.24;

import {IERC4626} from "src/Common.sol";
import {IValidator} from "src/interface/IValidator.sol";

interface IVault is IERC4626 {
    struct VaultStorage {
        uint256 totalAssets;
        address provider;
        address buffer;
        bool paused;
        uint8 decimals;
        bool countNativeAsset;
        bool alwaysComputeTotalAssets;
        /// @notice The index of the default asset.
        /// The default asset is vault.asset(), used for deposit, withdraw, redeem, mint as default.
        /// If defaultAssetIndex is 0, the vault will use the base asset as default asset.
        uint256 defaultAssetIndex;
    }

    struct AssetParams {
        uint256 index;
        bool active;
        uint8 decimals;
    }

    struct AssetUpdateFields {
        bool active;
    }

    struct AssetStorage {
        mapping(address => AssetParams) assets;
        address[] list;
    }

    struct FeeStorage {
        /// @notice The base withdrawal fee in basis points (1e8 = 100%)
        uint64 baseWithdrawalFee;
    }

    enum ParamType {
        UINT256,
        ADDRESS
    }

    struct ParamRule {
        ParamType paramType;
        bool isArray;
        address[] allowList;
    }

    struct FunctionRule {
        bool isActive;
        ParamRule[] paramRules;
        IValidator validator;
    }

    struct ProcessorStorage {
        uint256 lastProcessed;
        uint256 lastAccounting;
        mapping(address => mapping(bytes4 => FunctionRule)) rules;
    }

    error Paused();
    error Unpaused();
    error ZeroAddress();
    error ZeroAmount();
    error ZeroRate();
    error InvalidString();
    error InvalidArray();
    error ExceededMaxDeposit(address sender, uint256 amount, uint256 maxAssets);
    error DefaultAsset();
    error AssetNotEmpty(address);
    error InvalidAsset(address);
    error InvalidTarget(address);
    error InvalidDecimals();
    error InvalidFunction(address target, bytes4 funcSig);
    error DuplicateAsset(address asset);
    error ExceededMaxWithdraw(address, uint256, uint256);
    error ExceededMaxRedeem(address, uint256, uint256);
    error ProcessFailed(bytes, bytes);
    error ProcessInvalid(bytes);
    error ProviderNotSet();
    error BufferNotSet();
    error DepositFailed();
    error AssetNotActive();
    error ExceedsMaxBasisPoints(uint256 value);
    error InvalidNativeAssetDecimals(uint256 decimals);
    error InvalidAssetDecimals(uint256 decimals);
    error InvalidDefaultAssetIndex(uint256 index);
    error BaseAsset();

    event DepositAsset(
        address indexed sender,
        address indexed receiver,
        address indexed asset,
        uint256 assets,
        uint256 baseAssets,
        uint256 shares
    );
    event SetProvider(address indexed provider);
    event SetBuffer(address indexed buffer);
    event SetAlwaysComputeTotalAssets(bool alwaysComputeTotalAssets);
    event NewAsset(address indexed asset, uint256 decimals, uint256 index);
    event ProcessSuccess(address[] targets, uint256[] values, bytes[] data);
    event Pause(bool paused);
    event SetProcessorRule(address indexed target, bytes4, FunctionRule);
    event NativeDeposit(uint256 amount);
    event ProcessAccounting(uint256 timestamp, uint256 totalAssets);
    event UpdateAsset(uint256 indexed index, address indexed asset, AssetUpdateFields fields);
    event DeleteAsset(uint256 indexed index, address indexed asset);
    event SetBaseWithdrawalFee(uint64 oldFee, uint64 newFee);

    // 4626-MAX
    function getAssets() external view returns (address[] memory list);
    function getAsset(address asset_) external view returns (AssetParams memory);
    function getProcessorRule(address contractAddress, bytes4 funcSig) external view returns (FunctionRule memory);
    function previewDepositAsset(address assetAddress, uint256 assets) external view returns (uint256);
    function depositAsset(address assetAddress, uint256 amount, address receiver) external returns (uint256);
    function provider() external view returns (address);
    function buffer() external view returns (address);
    function totalBaseAssets() external view returns (uint256);

    // ADMIN
    function setProvider(address provider) external;
    function setBuffer(address buffer) external;
    function setProcessorRule(address target, bytes4 functionSig, FunctionRule memory rule) external;
    function setProcessorRules(address[] memory targets, bytes4[] memory functionSigs, FunctionRule[] memory rules)
        external;
    function addAsset(address asset_, bool active_) external;
    function pause() external;
    function unpause() external;

    function processAccounting() external;
    function processor(address[] calldata targets, uint256[] calldata values, bytes[] calldata data)
        external
        returns (bytes[] memory);

    // FEES
    function _feeOnRaw(uint256 assets) external view returns (uint256);
    function _feeOnTotal(uint256 assets) external view returns (uint256);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (proxy/utils/Initializable.sol)

pragma solidity ^0.8.20;

/**
 * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
 * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
 * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
 * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
 *
 * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
 * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
 * case an upgrade adds a module that needs to be initialized.
 *
 * For example:
 *
 * [.hljs-theme-light.nopadding]
 * ```solidity
 * contract MyToken is ERC20Upgradeable {
 *     function initialize() initializer public {
 *         __ERC20_init("MyToken", "MTK");
 *     }
 * }
 *
 * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
 *     function initializeV2() reinitializer(2) public {
 *         __ERC20Permit_init("MyToken");
 *     }
 * }
 * ```
 *
 * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
 * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
 *
 * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
 * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
 *
 * [CAUTION]
 * ====
 * Avoid leaving a contract uninitialized.
 *
 * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
 * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
 * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * /// @custom:oz-upgrades-unsafe-allow constructor
 * constructor() {
 *     _disableInitializers();
 * }
 * ```
 * ====
 */
abstract contract Initializable {
    /**
     * @dev Storage of the initializable contract.
     *
     * It's implemented on a custom ERC-7201 namespace to reduce the risk of storage collisions
     * when using with upgradeable contracts.
     *
     * @custom:storage-location erc7201:openzeppelin.storage.Initializable
     */
    struct InitializableStorage {
        /**
         * @dev Indicates that the contract has been initialized.
         */
        uint64 _initialized;
        /**
         * @dev Indicates that the contract is in the process of being initialized.
         */
        bool _initializing;
    }

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Initializable")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant INITIALIZABLE_STORAGE = 0xf0c57e16840df040f15088dc2f81fe391c3923bec73e23a9662efc9c229c6a00;

    /**
     * @dev The contract is already initialized.
     */
    error InvalidInitialization();

    /**
     * @dev The contract is not initializing.
     */
    error NotInitializing();

    /**
     * @dev Triggered when the contract has been initialized or reinitialized.
     */
    event Initialized(uint64 version);

    /**
     * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
     * `onlyInitializing` functions can be used to initialize parent contracts.
     *
     * Similar to `reinitializer(1)`, except that in the context of a constructor an `initializer` may be invoked any
     * number of times. This behavior in the constructor can be useful during testing and is not expected to be used in
     * production.
     *
     * Emits an {Initialized} event.
     */
    modifier initializer() {
        // solhint-disable-next-line var-name-mixedcase
        InitializableStorage storage $ = _getInitializableStorage();

        // Cache values to avoid duplicated sloads
        bool isTopLevelCall = !$._initializing;
        uint64 initialized = $._initialized;

        // Allowed calls:
        // - initialSetup: the contract is not in the initializing state and no previous version was
        //                 initialized
        // - construction: the contract is initialized at version 1 (no reininitialization) and the
        //                 current contract is just being deployed
        bool initialSetup = initialized == 0 && isTopLevelCall;
        bool construction = initialized == 1 && address(this).code.length == 0;

        if (!initialSetup && !construction) {
            revert InvalidInitialization();
        }
        $._initialized = 1;
        if (isTopLevelCall) {
            $._initializing = true;
        }
        _;
        if (isTopLevelCall) {
            $._initializing = false;
            emit Initialized(1);
        }
    }

    /**
     * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
     * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
     * used to initialize parent contracts.
     *
     * A reinitializer may be used after the original initialization step. This is essential to configure modules that
     * are added through upgrades and that require initialization.
     *
     * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`
     * cannot be nested. If one is invoked in the context of another, execution will revert.
     *
     * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
     * a contract, executing them in the right order is up to the developer or operator.
     *
     * WARNING: Setting the version to 2**64 - 1 will prevent any future reinitialization.
     *
     * Emits an {Initialized} event.
     */
    modifier reinitializer(uint64 version) {
        // solhint-disable-next-line var-name-mixedcase
        InitializableStorage storage $ = _getInitializableStorage();

        if ($._initializing || $._initialized >= version) {
            revert InvalidInitialization();
        }
        $._initialized = version;
        $._initializing = true;
        _;
        $._initializing = false;
        emit Initialized(version);
    }

    /**
     * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
     * {initializer} and {reinitializer} modifiers, directly or indirectly.
     */
    modifier onlyInitializing() {
        _checkInitializing();
        _;
    }

    /**
     * @dev Reverts if the contract is not in an initializing state. See {onlyInitializing}.
     */
    function _checkInitializing() internal view virtual {
        if (!_isInitializing()) {
            revert NotInitializing();
        }
    }

    /**
     * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
     * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
     * to any version. It is recommended to use this to lock implementation contracts that are designed to be called
     * through proxies.
     *
     * Emits an {Initialized} event the first time it is successfully executed.
     */
    function _disableInitializers() internal virtual {
        // solhint-disable-next-line var-name-mixedcase
        InitializableStorage storage $ = _getInitializableStorage();

        if ($._initializing) {
            revert InvalidInitialization();
        }
        if ($._initialized != type(uint64).max) {
            $._initialized = type(uint64).max;
            emit Initialized(type(uint64).max);
        }
    }

    /**
     * @dev Returns the highest version that has been initialized. See {reinitializer}.
     */
    function _getInitializedVersion() internal view returns (uint64) {
        return _getInitializableStorage()._initialized;
    }

    /**
     * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.
     */
    function _isInitializing() internal view returns (bool) {
        return _getInitializableStorage()._initializing;
    }

    /**
     * @dev Returns a pointer to the storage namespace.
     */
    // solhint-disable-next-line var-name-mixedcase
    function _getInitializableStorage() private pure returns (InitializableStorage storage $) {
        assembly {
            $.slot := INITIALIZABLE_STORAGE
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/AccessControl.sol)

pragma solidity ^0.8.20;

import {IAccessControl} from "@openzeppelin/contracts/access/IAccessControl.sol";
import {ContextUpgradeable} from "../utils/ContextUpgradeable.sol";
import {ERC165Upgradeable} from "../utils/introspection/ERC165Upgradeable.sol";
import {Initializable} from "../proxy/utils/Initializable.sol";

/**
 * @dev Contract module that allows children to implement role-based access
 * control mechanisms. This is a lightweight version that doesn't allow enumerating role
 * members except through off-chain means by accessing the contract event logs. Some
 * applications may benefit from on-chain enumerability, for those cases see
 * {AccessControlEnumerable}.
 *
 * Roles are referred to by their `bytes32` identifier. These should be exposed
 * in the external API and be unique. The best way to achieve this is by
 * using `public constant` hash digests:
 *
 * ```solidity
 * bytes32 public constant MY_ROLE = keccak256("MY_ROLE");
 * ```
 *
 * Roles can be used to represent a set of permissions. To restrict access to a
 * function call, use {hasRole}:
 *
 * ```solidity
 * function foo() public {
 *     require(hasRole(MY_ROLE, msg.sender));
 *     ...
 * }
 * ```
 *
 * Roles can be granted and revoked dynamically via the {grantRole} and
 * {revokeRole} functions. Each role has an associated admin role, and only
 * accounts that have a role's admin role can call {grantRole} and {revokeRole}.
 *
 * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means
 * that only accounts with this role will be able to grant or revoke other
 * roles. More complex role relationships can be created by using
 * {_setRoleAdmin}.
 *
 * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to
 * grant and revoke this role. Extra precautions should be taken to secure
 * accounts that have been granted it. We recommend using {AccessControlDefaultAdminRules}
 * to enforce additional security measures for this role.
 */
abstract contract AccessControlUpgradeable is Initializable, ContextUpgradeable, IAccessControl, ERC165Upgradeable {
    struct RoleData {
        mapping(address account => bool) hasRole;
        bytes32 adminRole;
    }

    bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;


    /// @custom:storage-location erc7201:openzeppelin.storage.AccessControl
    struct AccessControlStorage {
        mapping(bytes32 role => RoleData) _roles;
    }

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.AccessControl")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant AccessControlStorageLocation = 0x02dd7bc7dec4dceedda775e58dd541e08a116c6c53815c0bd028192f7b626800;

    function _getAccessControlStorage() private pure returns (AccessControlStorage storage $) {
        assembly {
            $.slot := AccessControlStorageLocation
        }
    }

    /**
     * @dev Modifier that checks that an account has a specific role. Reverts
     * with an {AccessControlUnauthorizedAccount} error including the required role.
     */
    modifier onlyRole(bytes32 role) {
        _checkRole(role);
        _;
    }

    function __AccessControl_init() internal onlyInitializing {
    }

    function __AccessControl_init_unchained() internal onlyInitializing {
    }
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId);
    }

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) public view virtual returns (bool) {
        AccessControlStorage storage $ = _getAccessControlStorage();
        return $._roles[role].hasRole[account];
    }

    /**
     * @dev Reverts with an {AccessControlUnauthorizedAccount} error if `_msgSender()`
     * is missing `role`. Overriding this function changes the behavior of the {onlyRole} modifier.
     */
    function _checkRole(bytes32 role) internal view virtual {
        _checkRole(role, _msgSender());
    }

    /**
     * @dev Reverts with an {AccessControlUnauthorizedAccount} error if `account`
     * is missing `role`.
     */
    function _checkRole(bytes32 role, address account) internal view virtual {
        if (!hasRole(role, account)) {
            revert AccessControlUnauthorizedAccount(account, role);
        }
    }

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) public view virtual returns (bytes32) {
        AccessControlStorage storage $ = _getAccessControlStorage();
        return $._roles[role].adminRole;
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     *
     * May emit a {RoleGranted} event.
     */
    function grantRole(bytes32 role, address account) public virtual onlyRole(getRoleAdmin(role)) {
        _grantRole(role, account);
    }

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     *
     * May emit a {RoleRevoked} event.
     */
    function revokeRole(bytes32 role, address account) public virtual onlyRole(getRoleAdmin(role)) {
        _revokeRole(role, account);
    }

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been revoked `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `callerConfirmation`.
     *
     * May emit a {RoleRevoked} event.
     */
    function renounceRole(bytes32 role, address callerConfirmation) public virtual {
        if (callerConfirmation != _msgSender()) {
            revert AccessControlBadConfirmation();
        }

        _revokeRole(role, callerConfirmation);
    }

    /**
     * @dev Sets `adminRole` as ``role``'s admin role.
     *
     * Emits a {RoleAdminChanged} event.
     */
    function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {
        AccessControlStorage storage $ = _getAccessControlStorage();
        bytes32 previousAdminRole = getRoleAdmin(role);
        $._roles[role].adminRole = adminRole;
        emit RoleAdminChanged(role, previousAdminRole, adminRole);
    }

    /**
     * @dev Attempts to grant `role` to `account` and returns a boolean indicating if `role` was granted.
     *
     * Internal function without access restriction.
     *
     * May emit a {RoleGranted} event.
     */
    function _grantRole(bytes32 role, address account) internal virtual returns (bool) {
        AccessControlStorage storage $ = _getAccessControlStorage();
        if (!hasRole(role, account)) {
            $._roles[role].hasRole[account] = true;
            emit RoleGranted(role, account, _msgSender());
            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Attempts to revoke `role` to `account` and returns a boolean indicating if `role` was revoked.
     *
     * Internal function without access restriction.
     *
     * May emit a {RoleRevoked} event.
     */
    function _revokeRole(bytes32 role, address account) internal virtual returns (bool) {
        AccessControlStorage storage $ = _getAccessControlStorage();
        if (hasRole(role, account)) {
            $._roles[role].hasRole[account] = false;
            emit RoleRevoked(role, account, _msgSender());
            return true;
        } else {
            return false;
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC4626.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../token/ERC20/IERC20.sol";
import {IERC20Metadata} from "../token/ERC20/extensions/IERC20Metadata.sol";

/**
 * @dev Interface of the ERC4626 "Tokenized Vault Standard", as defined in
 * https://eips.ethereum.org/EIPS/eip-4626[ERC-4626].
 */
interface IERC4626 is IERC20, IERC20Metadata {
    event Deposit(address indexed sender, address indexed owner, uint256 assets, uint256 shares);

    event Withdraw(
        address indexed sender,
        address indexed receiver,
        address indexed owner,
        uint256 assets,
        uint256 shares
    );

    /**
     * @dev Returns the address of the underlying token used for the Vault for accounting, depositing, and withdrawing.
     *
     * - MUST be an ERC-20 token contract.
     * - MUST NOT revert.
     */
    function asset() external view returns (address assetTokenAddress);

    /**
     * @dev Returns the total amount of the underlying asset that is “managed” by Vault.
     *
     * - SHOULD include any compounding that occurs from yield.
     * - MUST be inclusive of any fees that are charged against assets in the Vault.
     * - MUST NOT revert.
     */
    function totalAssets() external view returns (uint256 totalManagedAssets);

    /**
     * @dev Returns the amount of shares that the Vault would exchange for the amount of assets provided, in an ideal
     * scenario where all the conditions are met.
     *
     * - MUST NOT be inclusive of any fees that are charged against assets in the Vault.
     * - MUST NOT show any variations depending on the caller.
     * - MUST NOT reflect slippage or other on-chain conditions, when performing the actual exchange.
     * - MUST NOT revert.
     *
     * NOTE: This calculation MAY NOT reflect the “per-user” price-per-share, and instead should reflect the
     * “average-user’s” price-per-share, meaning what the average user should expect to see when exchanging to and
     * from.
     */
    function convertToShares(uint256 assets) external view returns (uint256 shares);

    /**
     * @dev Returns the amount of assets that the Vault would exchange for the amount of shares provided, in an ideal
     * scenario where all the conditions are met.
     *
     * - MUST NOT be inclusive of any fees that are charged against assets in the Vault.
     * - MUST NOT show any variations depending on the caller.
     * - MUST NOT reflect slippage or other on-chain conditions, when performing the actual exchange.
     * - MUST NOT revert.
     *
     * NOTE: This calculation MAY NOT reflect the “per-user” price-per-share, and instead should reflect the
     * “average-user’s” price-per-share, meaning what the average user should expect to see when exchanging to and
     * from.
     */
    function convertToAssets(uint256 shares) external view returns (uint256 assets);

    /**
     * @dev Returns the maximum amount of the underlying asset that can be deposited into the Vault for the receiver,
     * through a deposit call.
     *
     * - MUST return a limited value if receiver is subject to some deposit limit.
     * - MUST return 2 ** 256 - 1 if there is no limit on the maximum amount of assets that may be deposited.
     * - MUST NOT revert.
     */
    function maxDeposit(address receiver) external view returns (uint256 maxAssets);

    /**
     * @dev Allows an on-chain or off-chain user to simulate the effects of their deposit at the current block, given
     * current on-chain conditions.
     *
     * - MUST return as close to and no more than the exact amount of Vault shares that would be minted in a deposit
     *   call in the same transaction. I.e. deposit should return the same or more shares as previewDeposit if called
     *   in the same transaction.
     * - MUST NOT account for deposit limits like those returned from maxDeposit and should always act as though the
     *   deposit would be accepted, regardless if the user has enough tokens approved, etc.
     * - MUST be inclusive of deposit fees. Integrators should be aware of the existence of deposit fees.
     * - MUST NOT revert.
     *
     * NOTE: any unfavorable discrepancy between convertToShares and previewDeposit SHOULD be considered slippage in
     * share price or some other type of condition, meaning the depositor will lose assets by depositing.
     */
    function previewDeposit(uint256 assets) external view returns (uint256 shares);

    /**
     * @dev Mints shares Vault shares to receiver by depositing exactly amount of underlying tokens.
     *
     * - MUST emit the Deposit event.
     * - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the
     *   deposit execution, and are accounted for during deposit.
     * - MUST revert if all of assets cannot be deposited (due to deposit limit being reached, slippage, the user not
     *   approving enough underlying tokens to the Vault contract, etc).
     *
     * NOTE: most implementations will require pre-approval of the Vault with the Vault’s underlying asset token.
     */
    function deposit(uint256 assets, address receiver) external returns (uint256 shares);

    /**
     * @dev Returns the maximum amount of the Vault shares that can be minted for the receiver, through a mint call.
     * - MUST return a limited value if receiver is subject to some mint limit.
     * - MUST return 2 ** 256 - 1 if there is no limit on the maximum amount of shares that may be minted.
     * - MUST NOT revert.
     */
    function maxMint(address receiver) external view returns (uint256 maxShares);

    /**
     * @dev Allows an on-chain or off-chain user to simulate the effects of their mint at the current block, given
     * current on-chain conditions.
     *
     * - MUST return as close to and no fewer than the exact amount of assets that would be deposited in a mint call
     *   in the same transaction. I.e. mint should return the same or fewer assets as previewMint if called in the
     *   same transaction.
     * - MUST NOT account for mint limits like those returned from maxMint and should always act as though the mint
     *   would be accepted, regardless if the user has enough tokens approved, etc.
     * - MUST be inclusive of deposit fees. Integrators should be aware of the existence of deposit fees.
     * - MUST NOT revert.
     *
     * NOTE: any unfavorable discrepancy between convertToAssets and previewMint SHOULD be considered slippage in
     * share price or some other type of condition, meaning the depositor will lose assets by minting.
     */
    function previewMint(uint256 shares) external view returns (uint256 assets);

    /**
     * @dev Mints exactly shares Vault shares to receiver by depositing amount of underlying tokens.
     *
     * - MUST emit the Deposit event.
     * - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the mint
     *   execution, and are accounted for during mint.
     * - MUST revert if all of shares cannot be minted (due to deposit limit being reached, slippage, the user not
     *   approving enough underlying tokens to the Vault contract, etc).
     *
     * NOTE: most implementations will require pre-approval of the Vault with the Vault’s underlying asset token.
     */
    function mint(uint256 shares, address receiver) external returns (uint256 assets);

    /**
     * @dev Returns the maximum amount of the underlying asset that can be withdrawn from the owner balance in the
     * Vault, through a withdraw call.
     *
     * - MUST return a limited value if owner is subject to some withdrawal limit or timelock.
     * - MUST NOT revert.
     */
    function maxWithdraw(address owner) external view returns (uint256 maxAssets);

    /**
     * @dev Allows an on-chain or off-chain user to simulate the effects of their withdrawal at the current block,
     * given current on-chain conditions.
     *
     * - MUST return as close to and no fewer than the exact amount of Vault shares that would be burned in a withdraw
     *   call in the same transaction. I.e. withdraw should return the same or fewer shares as previewWithdraw if
     *   called
     *   in the same transaction.
     * - MUST NOT account for withdrawal limits like those returned from maxWithdraw and should always act as though
     *   the withdrawal would be accepted, regardless if the user has enough shares, etc.
     * - MUST be inclusive of withdrawal fees. Integrators should be aware of the existence of withdrawal fees.
     * - MUST NOT revert.
     *
     * NOTE: any unfavorable discrepancy between convertToShares and previewWithdraw SHOULD be considered slippage in
     * share price or some other type of condition, meaning the depositor will lose assets by depositing.
     */
    function previewWithdraw(uint256 assets) external view returns (uint256 shares);

    /**
     * @dev Burns shares from owner and sends exactly assets of underlying tokens to receiver.
     *
     * - MUST emit the Withdraw event.
     * - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the
     *   withdraw execution, and are accounted for during withdraw.
     * - MUST revert if all of assets cannot be withdrawn (due to withdrawal limit being reached, slippage, the owner
     *   not having enough shares, etc).
     *
     * Note that some implementations will require pre-requesting to the Vault before a withdrawal may be performed.
     * Those methods should be performed separately.
     */
    function withdraw(uint256 assets, address receiver, address owner) external returns (uint256 shares);

    /**
     * @dev Returns the maximum amount of Vault shares that can be redeemed from the owner balance in the Vault,
     * through a redeem call.
     *
     * - MUST return a limited value if owner is subject to some withdrawal limit or timelock.
     * - MUST return balanceOf(owner) if owner is not subject to any withdrawal limit or timelock.
     * - MUST NOT revert.
     */
    function maxRedeem(address owner) external view returns (uint256 maxShares);

    /**
     * @dev Allows an on-chain or off-chain user to simulate the effects of their redeemption at the current block,
     * given current on-chain conditions.
     *
     * - MUST return as close to and no more than the exact amount of assets that would be withdrawn in a redeem call
     *   in the same transaction. I.e. redeem should return the same or more assets as previewRedeem if called in the
     *   same transaction.
     * - MUST NOT account for redemption limits like those returned from maxRedeem and should always act as though the
     *   redemption would be accepted, regardless if the user has enough shares, etc.
     * - MUST be inclusive of withdrawal fees. Integrators should be aware of the existence of withdrawal fees.
     * - MUST NOT revert.
     *
     * NOTE: any unfavorable discrepancy between convertToAssets and previewRedeem SHOULD be considered slippage in
     * share price or some other type of condition, meaning the depositor will lose assets by redeeming.
     */
    function previewRedeem(uint256 shares) external view returns (uint256 assets);

    /**
     * @dev Burns exactly shares from owner and sends assets of underlying tokens to receiver.
     *
     * - MUST emit the Withdraw event.
     * - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the
     *   redeem execution, and are accounted for during redeem.
     * - MUST revert if all of shares cannot be redeemed (due to withdrawal limit being reached, slippage, the owner
     *   not having enough shares, etc).
     *
     * NOTE: some implementations will require pre-requesting to the Vault before a withdrawal may be performed.
     * Those methods should be performed separately.
     */
    function redeem(uint256 shares, address receiver, address owner) external returns (uint256 assets);
}

// SPDX-License-Identifier: BSD-3-Clause
pragma solidity ^0.8.24;

interface IProvider {
    function getRate(address asset) external view returns (uint256);
}

interface IStETH {
    function getPooledEthByShares(uint256 _ethAmount) external view returns (uint256);
}

interface IMETH {
    function mETHToETH(uint256 mETHAmount) external view returns (uint256);
}

interface IOETH {
    function assetToEth(uint256 _assetAmount) external view returns (uint256);
}

interface IRETH {
    function getExchangeRate() external view returns (uint256);
}

interface IswETH {
    function swETHToETHRate() external view returns (uint256);
}

interface IsfrxETH {
    function pricePerShare() external view returns (uint256);
}

interface IFrxEthWethDualOracle {
    function getCurveEmaEthPerFrxEth() external view returns (uint256);
}

interface IynLSDe {
    function convertToAssets(address asset, uint256 shares) external view returns (uint256);
    function previewRedeem(uint256 shares) external view returns (uint256);
}

interface ICurveLpConnector {
    function rate() external view returns (int256 rate, uint256 updatedAt);
}

// SPDX-License-Identifier: BSD-3-Clause
pragma solidity ^0.8.24;

import {IVault} from "src/interface/IVault.sol";
import {IValidator} from "src/interface/IValidator.sol";
import {VaultLib} from "src/library/VaultLib.sol";

library Guard {
    function validateCall(address target, uint256 value, bytes calldata data) internal view {
        bytes4 funcSig = bytes4(data[:4]);

        IVault.FunctionRule storage rule = VaultLib.getProcessorStorage().rules[target][funcSig];

        if (!rule.isActive) revert RuleNotActive(target, funcSig);

        IValidator validator = rule.validator;
        if (address(validator) != address(0)) {
            validator.validate(target, value, data);
            return;
        }

        for (uint256 i = 0; i < rule.paramRules.length; i++) {
            if (rule.paramRules[i].paramType == IVault.ParamType.ADDRESS) {
                address addressValue = abi.decode(data[4 + i * 32:], (address));
                _validateAddress(addressValue, rule.paramRules[i]);
                continue;
            }
        }
    }

    function _validateAddress(address value, IVault.ParamRule storage rule) private view {
        if (rule.allowList.length > 0 && !_isInArray(value, rule.allowList)) revert AddressNotInAllowlist(value);
    }

    function _isInArray(address value, address[] storage array) private view returns (bool) {
        for (uint256 i = 0; i < array.length; i++) {
            if (array[i] == value) {
                return true;
            }
        }
        return false;
    }

    error RuleNotActive(address, bytes4);
    error AddressNotInAllowlist(address);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/ERC20Permit.sol)

pragma solidity ^0.8.20;

import {IERC20Permit} from "@openzeppelin/contracts/token/ERC20/extensions/IERC20Permit.sol";
import {ERC20Upgradeable} from "../ERC20Upgradeable.sol";
import {ECDSA} from "@openzeppelin/contracts/utils/cryptography/ECDSA.sol";
import {EIP712Upgradeable} from "../../../utils/cryptography/EIP712Upgradeable.sol";
import {NoncesUpgradeable} from "../../../utils/NoncesUpgradeable.sol";
import {Initializable} from "../../../proxy/utils/Initializable.sol";

/**
 * @dev Implementation of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
 *
 * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
 * presenting a message signed by the account. By not relying on `{IERC20-approve}`, the token holder account doesn't
 * need to send a transaction, and thus is not required to hold Ether at all.
 */
abstract contract ERC20PermitUpgradeable is Initializable, ERC20Upgradeable, IERC20Permit, EIP712Upgradeable, NoncesUpgradeable {
    bytes32 private constant PERMIT_TYPEHASH =
        keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");

    /**
     * @dev Permit deadline has expired.
     */
    error ERC2612ExpiredSignature(uint256 deadline);

    /**
     * @dev Mismatched signature.
     */
    error ERC2612InvalidSigner(address signer, address owner);

    /**
     * @dev Initializes the {EIP712} domain separator using the `name` parameter, and setting `version` to `"1"`.
     *
     * It's a good idea to use the same `name` that is defined as the ERC20 token name.
     */
    function __ERC20Permit_init(string memory name) internal onlyInitializing {
        __EIP712_init_unchained(name, "1");
    }

    function __ERC20Permit_init_unchained(string memory) internal onlyInitializing {}

    /**
     * @inheritdoc IERC20Permit
     */
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) public virtual {
        if (block.timestamp > deadline) {
            revert ERC2612ExpiredSignature(deadline);
        }

        bytes32 structHash = keccak256(abi.encode(PERMIT_TYPEHASH, owner, spender, value, _useNonce(owner), deadline));

        bytes32 hash = _hashTypedDataV4(structHash);

        address signer = ECDSA.recover(hash, v, r, s);
        if (signer != owner) {
            revert ERC2612InvalidSigner(signer, owner);
        }

        _approve(owner, spender, value);
    }

    /**
     * @inheritdoc IERC20Permit
     */
    function nonces(address owner) public view virtual override(IERC20Permit, NoncesUpgradeable) returns (uint256) {
        return super.nonces(owner);
    }

    /**
     * @inheritdoc IERC20Permit
     */
    // solhint-disable-next-line func-name-mixedcase
    function DOMAIN_SEPARATOR() external view virtual returns (bytes32) {
        return _domainSeparatorV4();
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/ERC20.sol)

pragma solidity ^0.8.20;

import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import {IERC20Metadata} from "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol";
import {ContextUpgradeable} from "../../utils/ContextUpgradeable.sol";
import {IERC20Errors} from "@openzeppelin/contracts/interfaces/draft-IERC6093.sol";
import {Initializable} from "../../proxy/utils/Initializable.sol";

/**
 * @dev Implementation of the {IERC20} interface.
 *
 * This implementation is agnostic to the way tokens are created. This means
 * that a supply mechanism has to be added in a derived contract using {_mint}.
 *
 * TIP: For a detailed writeup see our guide
 * https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * The default value of {decimals} is 18. To change this, you should override
 * this function so it returns a different value.
 *
 * We have followed general OpenZeppelin Contracts guidelines: functions revert
 * instead returning `false` on failure. This behavior is nonetheless
 * conventional and does not conflict with the expectations of ERC20
 * applications.
 *
 * Additionally, an {Approval} event is emitted on calls to {transferFrom}.
 * This allows applications to reconstruct the allowance for all accounts just
 * by listening to said events. Other implementations of the EIP may not emit
 * these events, as it isn't required by the specification.
 */
abstract contract ERC20Upgradeable is Initializable, ContextUpgradeable, IERC20, IERC20Metadata, IERC20Errors {
    /// @custom:storage-location erc7201:openzeppelin.storage.ERC20
    struct ERC20Storage {
        mapping(address account => uint256) _balances;

        mapping(address account => mapping(address spender => uint256)) _allowances;

        uint256 _totalSupply;

        string _name;
        string _symbol;
    }

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.ERC20")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant ERC20StorageLocation = 0x52c63247e1f47db19d5ce0460030c497f067ca4cebf71ba98eeadabe20bace00;

    function _getERC20Storage() private pure returns (ERC20Storage storage $) {
        assembly {
            $.slot := ERC20StorageLocation
        }
    }

    /**
     * @dev Sets the values for {name} and {symbol}.
     *
     * All two of these values are immutable: they can only be set once during
     * construction.
     */
    function __ERC20_init(string memory name_, string memory symbol_) internal onlyInitializing {
        __ERC20_init_unchained(name_, symbol_);
    }

    function __ERC20_init_unchained(string memory name_, string memory symbol_) internal onlyInitializing {
        ERC20Storage storage $ = _getERC20Storage();
        $._name = name_;
        $._symbol = symbol_;
    }

    /**
     * @dev Returns the name of the token.
     */
    function name() public view virtual returns (string memory) {
        ERC20Storage storage $ = _getERC20Storage();
        return $._name;
    }

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public view virtual returns (string memory) {
        ERC20Storage storage $ = _getERC20Storage();
        return $._symbol;
    }

    /**
     * @dev Returns the number of decimals used to get its user representation.
     * For example, if `decimals` equals `2`, a balance of `505` tokens should
     * be displayed to a user as `5.05` (`505 / 10 ** 2`).
     *
     * Tokens usually opt for a value of 18, imitating the relationship between
     * Ether and Wei. This is the default value returned by this function, unless
     * it's overridden.
     *
     * NOTE: This information is only used for _display_ purposes: it in
     * no way affects any of the arithmetic of the contract, including
     * {IERC20-balanceOf} and {IERC20-transfer}.
     */
    function decimals() public view virtual returns (uint8) {
        return 18;
    }

    /**
     * @dev See {IERC20-totalSupply}.
     */
    function totalSupply() public view virtual returns (uint256) {
        ERC20Storage storage $ = _getERC20Storage();
        return $._totalSupply;
    }

    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view virtual returns (uint256) {
        ERC20Storage storage $ = _getERC20Storage();
        return $._balances[account];
    }

    /**
     * @dev See {IERC20-transfer}.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - the caller must have a balance of at least `value`.
     */
    function transfer(address to, uint256 value) public virtual returns (bool) {
        address owner = _msgSender();
        _transfer(owner, to, value);
        return true;
    }

    /**
     * @dev See {IERC20-allowance}.
     */
    function allowance(address owner, address spender) public view virtual returns (uint256) {
        ERC20Storage storage $ = _getERC20Storage();
        return $._allowances[owner][spender];
    }

    /**
     * @dev See {IERC20-approve}.
     *
     * NOTE: If `value` is the maximum `uint256`, the allowance is not updated on
     * `transferFrom`. This is semantically equivalent to an infinite approval.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 value) public virtual returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, value);
        return true;
    }

    /**
     * @dev See {IERC20-transferFrom}.
     *
     * Emits an {Approval} event indicating the updated allowance. This is not
     * required by the EIP. See the note at the beginning of {ERC20}.
     *
     * NOTE: Does not update the allowance if the current allowance
     * is the maximum `uint256`.
     *
     * Requirements:
     *
     * - `from` and `to` cannot be the zero address.
     * - `from` must have a balance of at least `value`.
     * - the caller must have allowance for ``from``'s tokens of at least
     * `value`.
     */
    function transferFrom(address from, address to, uint256 value) public virtual returns (bool) {
        address spender = _msgSender();
        _spendAllowance(from, spender, value);
        _transfer(from, to, value);
        return true;
    }

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to`.
     *
     * This internal function is equivalent to {transfer}, and can be used to
     * e.g. implement automatic token fees, slashing mechanisms, etc.
     *
     * Emits a {Transfer} event.
     *
     * NOTE: This function is not virtual, {_update} should be overridden instead.
     */
    function _transfer(address from, address to, uint256 value) internal {
        if (from == address(0)) {
            revert ERC20InvalidSender(address(0));
        }
        if (to == address(0)) {
            revert ERC20InvalidReceiver(address(0));
        }
        _update(from, to, value);
    }

    /**
     * @dev Transfers a `value` amount of tokens from `from` to `to`, or alternatively mints (or burns) if `from`
     * (or `to`) is the zero address. All customizations to transfers, mints, and burns should be done by overriding
     * this function.
     *
     * Emits a {Transfer} event.
     */
    function _update(address from, address to, uint256 value) internal virtual {
        ERC20Storage storage $ = _getERC20Storage();
        if (from == address(0)) {
            // Overflow check required: The rest of the code assumes that totalSupply never overflows
            $._totalSupply += value;
        } else {
            uint256 fromBalance = $._balances[from];
            if (fromBalance < value) {
                revert ERC20InsufficientBalance(from, fromBalance, value);
            }
            unchecked {
                // Overflow not possible: value <= fromBalance <= totalSupply.
                $._balances[from] = fromBalance - value;
            }
        }

        if (to == address(0)) {
            unchecked {
                // Overflow not possible: value <= totalSupply or value <= fromBalance <= totalSupply.
                $._totalSupply -= value;
            }
        } else {
            unchecked {
                // Overflow not possible: balance + value is at most totalSupply, which we know fits into a uint256.
                $._balances[to] += value;
            }
        }

        emit Transfer(from, to, value);
    }

    /**
     * @dev Creates a `value` amount of tokens and assigns them to `account`, by transferring it from address(0).
     * Relies on the `_update` mechanism
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * NOTE: This function is not virtual, {_update} should be overridden instead.
     */
    function _mint(address account, uint256 value) internal {
        if (account == address(0)) {
            revert ERC20InvalidReceiver(address(0));
        }
        _update(address(0), account, value);
    }

    /**
     * @dev Destroys a `value` amount of tokens from `account`, lowering the total supply.
     * Relies on the `_update` mechanism.
     *
     * Emits a {Transfer} event with `to` set to the zero address.
     *
     * NOTE: This function is not virtual, {_update} should be overridden instead
     */
    function _burn(address account, uint256 value) internal {
        if (account == address(0)) {
            revert ERC20InvalidSender(address(0));
        }
        _update(account, address(0), value);
    }

    /**
     * @dev Sets `value` as the allowance of `spender` over the `owner` s tokens.
     *
     * This internal function is equivalent to `approve`, and can be used to
     * e.g. set automatic allowances for certain subsystems, etc.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `owner` cannot be the zero address.
     * - `spender` cannot be the zero address.
     *
     * Overrides to this logic should be done to the variant with an additional `bool emitEvent` argument.
     */
    function _approve(address owner, address spender, uint256 value) internal {
        _approve(owner, spender, value, true);
    }

    /**
     * @dev Variant of {_approve} with an optional flag to enable or disable the {Approval} event.
     *
     * By default (when calling {_approve}) the flag is set to true. On the other hand, approval changes made by
     * `_spendAllowance` during the `transferFrom` operation set the flag to false. This saves gas by not emitting any
     * `Approval` event during `transferFrom` operations.
     *
     * Anyone who wishes to continue emitting `Approval` events on the`transferFrom` operation can force the flag to
     * true using the following override:
     * ```
     * function _approve(address owner, address spender, uint256 value, bool) internal virtual override {
     *     super._approve(owner, spender, value, true);
     * }
     * ```
     *
     * Requirements are the same as {_approve}.
     */
    function _approve(address owner, address spender, uint256 value, bool emitEvent) internal virtual {
        ERC20Storage storage $ = _getERC20Storage();
        if (owner == address(0)) {
            revert ERC20InvalidApprover(address(0));
        }
        if (spender == address(0)) {
            revert ERC20InvalidSpender(address(0));
        }
        $._allowances[owner][spender] = value;
        if (emitEvent) {
            emit Approval(owner, spender, value);
        }
    }

    /**
     * @dev Updates `owner` s allowance for `spender` based on spent `value`.
     *
     * Does not update the allowance value in case of infinite allowance.
     * Revert if not enough allowance is available.
     *
     * Does not emit an {Approval} event.
     */
    function _spendAllowance(address owner, address spender, uint256 value) internal virtual {
        uint256 currentAllowance = allowance(owner, spender);
        if (currentAllowance != type(uint256).max) {
            if (currentAllowance < value) {
                revert ERC20InsufficientAllowance(spender, currentAllowance, value);
            }
            unchecked {
                _approve(owner, spender, currentAllowance - value, false);
            }
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/IAccessControl.sol)

pragma solidity ^0.8.20;

/**
 * @dev External interface of AccessControl declared to support ERC165 detection.
 */
interface IAccessControl {
    /**
     * @dev The `account` is missing a role.
     */
    error AccessControlUnauthorizedAccount(address account, bytes32 neededRole);

    /**
     * @dev The caller of a function is not the expected one.
     *
     * NOTE: Don't confuse with {AccessControlUnauthorizedAccount}.
     */
    error AccessControlBadConfirmation();

    /**
     * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`
     *
     * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite
     * {RoleAdminChanged} not being emitted signaling this.
     */
    event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);

    /**
     * @dev Emitted when `account` is granted `role`.
     *
     * `sender` is the account that originated the contract call, an admin role
     * bearer except when using {AccessControl-_setupRole}.
     */
    event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Emitted when `account` is revoked `role`.
     *
     * `sender` is the account that originated the contract call:
     *   - if using `revokeRole`, it is the admin role bearer
     *   - if using `renounceRole`, it is the role bearer (i.e. `account`)
     */
    event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) external view returns (bool);

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {AccessControl-_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) external view returns (bytes32);

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function grantRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function revokeRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been granted `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `callerConfirmation`.
     */
    function renounceRole(bytes32 role, address callerConfirmation) external;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC20.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../token/ERC20/IERC20.sol";

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC20Metadata.sol)

pragma solidity ^0.8.20;

import {IERC20Metadata} from "../token/ERC20/extensions/IERC20Metadata.sol";

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/math/Math.sol)

pragma solidity ^0.8.20;

/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library Math {
    /**
     * @dev Muldiv operation overflow.
     */
    error MathOverflowedMulDiv();

    enum Rounding {
        Floor, // Toward negative infinity
        Ceil, // Toward positive infinity
        Trunc, // Toward zero
        Expand // Away from zero
    }

    /**
     * @dev Returns the addition of two unsigned integers, with an overflow flag.
     */
    function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            uint256 c = a + b;
            if (c < a) return (false, 0);
            return (true, c);
        }
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, with an overflow flag.
     */
    function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b > a) return (false, 0);
            return (true, a - b);
        }
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, with an overflow flag.
     */
    function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
            // benefit is lost if 'b' is also tested.
            // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
            if (a == 0) return (true, 0);
            uint256 c = a * b;
            if (c / a != b) return (false, 0);
            return (true, c);
        }
    }

    /**
     * @dev Returns the division of two unsigned integers, with a division by zero flag.
     */
    function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a / b);
        }
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
     */
    function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a % b);
        }
    }

    /**
     * @dev Returns the largest of two numbers.
     */
    function max(uint256 a, uint256 b) internal pure returns (uint256) {
        return a > b ? a : b;
    }

    /**
     * @dev Returns the smallest of two numbers.
     */
    function min(uint256 a, uint256 b) internal pure returns (uint256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two numbers. The result is rounded towards
     * zero.
     */
    function average(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b) / 2 can overflow.
        return (a & b) + (a ^ b) / 2;
    }

    /**
     * @dev Returns the ceiling of the division of two numbers.
     *
     * This differs from standard division with `/` in that it rounds towards infinity instead
     * of rounding towards zero.
     */
    function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
        if (b == 0) {
            // Guarantee the same behavior as in a regular Solidity division.
            return a / b;
        }

        // (a + b - 1) / b can overflow on addition, so we distribute.
        return a == 0 ? 0 : (a - 1) / b + 1;
    }

    /**
     * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or
     * denominator == 0.
     * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) with further edits by
     * Uniswap Labs also under MIT license.
     */
    function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) {
        unchecked {
            // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use
            // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
            // variables such that product = prod1 * 2^256 + prod0.
            uint256 prod0 = x * y; // Least significant 256 bits of the product
            uint256 prod1; // Most significant 256 bits of the product
            assembly {
                let mm := mulmod(x, y, not(0))
                prod1 := sub(sub(mm, prod0), lt(mm, prod0))
            }

            // Handle non-overflow cases, 256 by 256 division.
            if (prod1 == 0) {
                // Solidity will revert if denominator == 0, unlike the div opcode on its own.
                // The surrounding unchecked block does not change this fact.
                // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.
                return prod0 / denominator;
            }

            // Make sure the result is less than 2^256. Also prevents denominator == 0.
            if (denominator <= prod1) {
                revert MathOverflowedMulDiv();
            }

            ///////////////////////////////////////////////
            // 512 by 256 division.
            ///////////////////////////////////////////////

            // Make division exact by subtracting the remainder from [prod1 prod0].
            uint256 remainder;
            assembly {
                // Compute remainder using mulmod.
                remainder := mulmod(x, y, denominator)

                // Subtract 256 bit number from 512 bit number.
                prod1 := sub(prod1, gt(remainder, prod0))
                prod0 := sub(prod0, remainder)
            }

            // Factor powers of two out of denominator and compute largest power of two divisor of denominator.
            // Always >= 1. See https://cs.stackexchange.com/q/138556/92363.

            uint256 twos = denominator & (0 - denominator);
            assembly {
                // Divide denominator by twos.
                denominator := div(denominator, twos)

                // Divide [prod1 prod0] by twos.
                prod0 := div(prod0, twos)

                // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.
                twos := add(div(sub(0, twos), twos), 1)
            }

            // Shift in bits from prod1 into prod0.
            prod0 |= prod1 * twos;

            // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
            // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
            // four bits. That is, denominator * inv = 1 mod 2^4.
            uint256 inverse = (3 * denominator) ^ 2;

            // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also
            // works in modular arithmetic, doubling the correct bits in each step.
            inverse *= 2 - denominator * inverse; // inverse mod 2^8
            inverse *= 2 - denominator * inverse; // inverse mod 2^16
            inverse *= 2 - denominator * inverse; // inverse mod 2^32
            inverse *= 2 - denominator * inverse; // inverse mod 2^64
            inverse *= 2 - denominator * inverse; // inverse mod 2^128
            inverse *= 2 - denominator * inverse; // inverse mod 2^256

            // Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
            // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
            // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
            // is no longer required.
            result = prod0 * inverse;
            return result;
        }
    }

    /**
     * @notice Calculates x * y / denominator with full precision, following the selected rounding direction.
     */
    function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) {
        uint256 result = mulDiv(x, y, denominator);
        if (unsignedRoundsUp(rounding) && mulmod(x, y, denominator) > 0) {
            result += 1;
        }
        return result;
    }

    /**
     * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded
     * towards zero.
     *
     * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
     */
    function sqrt(uint256 a) internal pure returns (uint256) {
        if (a == 0) {
            return 0;
        }

        // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
        //
        // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
        // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
        //
        // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
        // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
        // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
        //
        // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
        uint256 result = 1 << (log2(a) >> 1);

        // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
        // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
        // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
        // into the expected uint128 result.
        unchecked {
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            return min(result, a / result);
        }
    }

    /**
     * @notice Calculates sqrt(a), following the selected rounding direction.
     */
    function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = sqrt(a);
            return result + (unsignedRoundsUp(rounding) && result * result < a ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 2 of a positive value rounded towards zero.
     * Returns 0 if given 0.
     */
    function log2(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 128;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 64;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 32;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 16;
            }
            if (value >> 8 > 0) {
                value >>= 8;
                result += 8;
            }
            if (value >> 4 > 0) {
                value >>= 4;
                result += 4;
            }
            if (value >> 2 > 0) {
                value >>= 2;
                result += 2;
            }
            if (value >> 1 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 2, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log2(value);
            return result + (unsignedRoundsUp(rounding) && 1 << result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 10 of a positive value rounded towards zero.
     * Returns 0 if given 0.
     */
    function log10(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >= 10 ** 64) {
                value /= 10 ** 64;
                result += 64;
            }
            if (value >= 10 ** 32) {
                value /= 10 ** 32;
                result += 32;
            }
            if (value >= 10 ** 16) {
                value /= 10 ** 16;
                result += 16;
            }
            if (value >= 10 ** 8) {
                value /= 10 ** 8;
                result += 8;
            }
            if (value >= 10 ** 4) {
                value /= 10 ** 4;
                result += 4;
            }
            if (value >= 10 ** 2) {
                value /= 10 ** 2;
                result += 2;
            }
            if (value >= 10 ** 1) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log10(value);
            return result + (unsignedRoundsUp(rounding) && 10 ** result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 256 of a positive value rounded towards zero.
     * Returns 0 if given 0.
     *
     * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
     */
    function log256(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 16;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 8;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 4;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 2;
            }
            if (value >> 8 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 256, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log256(value);
            return result + (unsignedRoundsUp(rounding) && 1 << (result << 3) < value ? 1 : 0);
        }
    }

    /**
     * @dev Returns whether a provided rounding mode is considered rounding up for unsigned integers.
     */
    function unsignedRoundsUp(Rounding rounding) internal pure returns (bool) {
        return uint8(rounding) % 2 == 1;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (proxy/transparent/ProxyAdmin.sol)

pragma solidity ^0.8.20;

import {ITransparentUpgradeableProxy} from "./TransparentUpgradeableProxy.sol";
import {Ownable} from "../../access/Ownable.sol";

/**
 * @dev This is an auxiliary contract meant to be assigned as the admin of a {TransparentUpgradeableProxy}. For an
 * explanation of why you would want to use this see the documentation for {TransparentUpgradeableProxy}.
 */
contract ProxyAdmin is Ownable {
    /**
     * @dev The version of the upgrade interface of the contract. If this getter is missing, both `upgrade(address)`
     * and `upgradeAndCall(address,bytes)` are present, and `upgradeTo` must be used if no function should be called,
     * while `upgradeAndCall` will invoke the `receive` function if the second argument is the empty byte string.
     * If the getter returns `"5.0.0"`, only `upgradeAndCall(address,bytes)` is present, and the second argument must
     * be the empty byte string if no function should be called, making it impossible to invoke the `receive` function
     * during an upgrade.
     */
    string public constant UPGRADE_INTERFACE_VERSION = "5.0.0";

    /**
     * @dev Sets the initial owner who can perform upgrades.
     */
    constructor(address initialOwner) Ownable(initialOwner) {}

    /**
     * @dev Upgrades `proxy` to `implementation` and calls a function on the new implementation.
     * See {TransparentUpgradeableProxy-_dispatchUpgradeToAndCall}.
     *
     * Requirements:
     *
     * - This contract must be the admin of `proxy`.
     * - If `data` is empty, `msg.value` must be zero.
     */
    function upgradeAndCall(
        ITransparentUpgradeableProxy proxy,
        address implementation,
        bytes memory data
    ) public payable virtual onlyOwner {
        proxy.upgradeToAndCall{value: msg.value}(implementation, data);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/ReentrancyGuard.sol)

pragma solidity ^0.8.20;
import {Initializable} from "../proxy/utils/Initializable.sol";

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuardUpgradeable is Initializable {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant NOT_ENTERED = 1;
    uint256 private constant ENTERED = 2;

    /// @custom:storage-location erc7201:openzeppelin.storage.ReentrancyGuard
    struct ReentrancyGuardStorage {
        uint256 _status;
    }

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.ReentrancyGuard")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant ReentrancyGuardStorageLocation = 0x9b779b17422d0df92223018b32b4d1fa46e071723d6817e2486d003becc55f00;

    function _getReentrancyGuardStorage() private pure returns (ReentrancyGuardStorage storage $) {
        assembly {
            $.slot := ReentrancyGuardStorageLocation
        }
    }

    /**
     * @dev Unauthorized reentrant call.
     */
    error ReentrancyGuardReentrantCall();

    function __ReentrancyGuard_init() internal onlyInitializing {
        __ReentrancyGuard_init_unchained();
    }

    function __ReentrancyGuard_init_unchained() internal onlyInitializing {
        ReentrancyGuardStorage storage $ = _getReentrancyGuardStorage();
        $._status = NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        _nonReentrantBefore();
        _;
        _nonReentrantAfter();
    }

    function _nonReentrantBefore() private {
        ReentrancyGuardStorage storage $ = _getReentrancyGuardStorage();
        // On the first call to nonReentrant, _status will be NOT_ENTERED
        if ($._status == ENTERED) {
            revert ReentrancyGuardReentrantCall();
        }

        // Any calls to nonReentrant after this point will fail
        $._status = ENTERED;
    }

    function _nonReentrantAfter() private {
        ReentrancyGuardStorage storage $ = _getReentrancyGuardStorage();
        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        $._status = NOT_ENTERED;
    }

    /**
     * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
     * `nonReentrant` function in the call stack.
     */
    function _reentrancyGuardEntered() internal view returns (bool) {
        ReentrancyGuardStorage storage $ = _getReentrancyGuardStorage();
        return $._status == ENTERED;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (governance/TimelockController.sol)

pragma solidity ^0.8.20;

import {AccessControl} from "../access/AccessControl.sol";
import {ERC721Holder} from "../token/ERC721/utils/ERC721Holder.sol";
import {ERC1155Holder} from "../token/ERC1155/utils/ERC1155Holder.sol";
import {Address} from "../utils/Address.sol";

/**
 * @dev Contract module which acts as a timelocked controller. When set as the
 * owner of an `Ownable` smart contract, it enforces a timelock on all
 * `onlyOwner` maintenance operations. This gives time for users of the
 * controlled contract to exit before a potentially dangerous maintenance
 * operation is applied.
 *
 * By default, this contract is self administered, meaning administration tasks
 * have to go through the timelock process. The proposer (resp executor) role
 * is in charge of proposing (resp executing) operations. A common use case is
 * to position this {TimelockController} as the owner of a smart contract, with
 * a multisig or a DAO as the sole proposer.
 */
contract TimelockController is AccessControl, ERC721Holder, ERC1155Holder {
    bytes32 public constant PROPOSER_ROLE = keccak256("PROPOSER_ROLE");
    bytes32 public constant EXECUTOR_ROLE = keccak256("EXECUTOR_ROLE");
    bytes32 public constant CANCELLER_ROLE = keccak256("CANCELLER_ROLE");
    uint256 internal constant _DONE_TIMESTAMP = uint256(1);

    mapping(bytes32 id => uint256) private _timestamps;
    uint256 private _minDelay;

    enum OperationState {
        Unset,
        Waiting,
        Ready,
        Done
    }

    /**
     * @dev Mismatch between the parameters length for an operation call.
     */
    error TimelockInvalidOperationLength(uint256 targets, uint256 payloads, uint256 values);

    /**
     * @dev The schedule operation doesn't meet the minimum delay.
     */
    error TimelockInsufficientDelay(uint256 delay, uint256 minDelay);

    /**
     * @dev The current state of an operation is not as required.
     * The `expectedStates` is a bitmap with the bits enabled for each OperationState enum position
     * counting from right to left.
     *
     * See {_encodeStateBitmap}.
     */
    error TimelockUnexpectedOperationState(bytes32 operationId, bytes32 expectedStates);

    /**
     * @dev The predecessor to an operation not yet done.
     */
    error TimelockUnexecutedPredecessor(bytes32 predecessorId);

    /**
     * @dev The caller account is not authorized.
     */
    error TimelockUnauthorizedCaller(address caller);

    /**
     * @dev Emitted when a call is scheduled as part of operation `id`.
     */
    event CallScheduled(
        bytes32 indexed id,
        uint256 indexed index,
        address target,
        uint256 value,
        bytes data,
        bytes32 predecessor,
        uint256 delay
    );

    /**
     * @dev Emitted when a call is performed as part of operation `id`.
     */
    event CallExecuted(bytes32 indexed id, uint256 indexed index, address target, uint256 value, bytes data);

    /**
     * @dev Emitted when new proposal is scheduled with non-zero salt.
     */
    event CallSalt(bytes32 indexed id, bytes32 salt);

    /**
     * @dev Emitted when operation `id` is cancelled.
     */
    event Cancelled(bytes32 indexed id);

    /**
     * @dev Emitted when the minimum delay for future operations is modified.
     */
    event MinDelayChange(uint256 oldDuration, uint256 newDuration);

    /**
     * @dev Initializes the contract with the following parameters:
     *
     * - `minDelay`: initial minimum delay in seconds for operations
     * - `proposers`: accounts to be granted proposer and canceller roles
     * - `executors`: accounts to be granted executor role
     * - `admin`: optional account to be granted admin role; disable with zero address
     *
     * IMPORTANT: The optional admin can aid with initial configuration of roles after deployment
     * without being subject to delay, but this role should be subsequently renounced in favor of
     * administration through timelocked proposals. Previous versions of this contract would assign
     * this admin to the deployer automatically and should be renounced as well.
     */
    constructor(uint256 minDelay, address[] memory proposers, address[] memory executors, address admin) {
        // self administration
        _grantRole(DEFAULT_ADMIN_ROLE, address(this));

        // optional admin
        if (admin != address(0)) {
            _grantRole(DEFAULT_ADMIN_ROLE, admin);
        }

        // register proposers and cancellers
        for (uint256 i = 0; i < proposers.length; ++i) {
            _grantRole(PROPOSER_ROLE, proposers[i]);
            _grantRole(CANCELLER_ROLE, proposers[i]);
        }

        // register executors
        for (uint256 i = 0; i < executors.length; ++i) {
            _grantRole(EXECUTOR_ROLE, executors[i]);
        }

        _minDelay = minDelay;
        emit MinDelayChange(0, minDelay);
    }

    /**
     * @dev Modifier to make a function callable only by a certain role. In
     * addition to checking the sender's role, `address(0)` 's role is also
     * considered. Granting a role to `address(0)` is equivalent to enabling
     * this role for everyone.
     */
    modifier onlyRoleOrOpenRole(bytes32 role) {
        if (!hasRole(role, address(0))) {
            _checkRole(role, _msgSender());
        }
        _;
    }

    /**
     * @dev Contract might receive/hold ETH as part of the maintenance process.
     */
    receive() external payable {}

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(
        bytes4 interfaceId
    ) public view virtual override(AccessControl, ERC1155Holder) returns (bool) {
        return super.supportsInterface(interfaceId);
    }

    /**
     * @dev Returns whether an id corresponds to a registered operation. This
     * includes both Waiting, Ready, and Done operations.
     */
    function isOperation(bytes32 id) public view returns (bool) {
        return getOperationState(id) != OperationState.Unset;
    }

    /**
     * @dev Returns whether an operation is pending or not. Note that a "pending" operation may also be "ready".
     */
    function isOperationPending(bytes32 id) public view returns (bool) {
        OperationState state = getOperationState(id);
        return state == OperationState.Waiting || state == OperationState.Ready;
    }

    /**
     * @dev Returns whether an operation is ready for execution. Note that a "ready" operation is also "pending".
     */
    function isOperationReady(bytes32 id) public view returns (bool) {
        return getOperationState(id) == OperationState.Ready;
    }

    /**
     * @dev Returns whether an operation is done or not.
     */
    function isOperationDone(bytes32 id) public view returns (bool) {
        return getOperationState(id) == OperationState.Done;
    }

    /**
     * @dev Returns the timestamp at which an operation becomes ready (0 for
     * unset operations, 1 for done operations).
     */
    function getTimestamp(bytes32 id) public view virtual returns (uint256) {
        return _timestamps[id];
    }

    /**
     * @dev Returns operation state.
     */
    function getOperationState(bytes32 id) public view virtual returns (OperationState) {
        uint256 timestamp = getTimestamp(id);
        if (timestamp == 0) {
            return OperationState.Unset;
        } else if (timestamp == _DONE_TIMESTAMP) {
            return OperationState.Done;
        } else if (timestamp > block.timestamp) {
            return OperationState.Waiting;
        } else {
            return OperationState.Ready;
        }
    }

    /**
     * @dev Returns the minimum delay in seconds for an operation to become valid.
     *
     * This value can be changed by executing an operation that calls `updateDelay`.
     */
    function getMinDelay() public view virtual returns (uint256) {
        return _minDelay;
    }

    /**
     * @dev Returns the identifier of an operation containing a single
     * transaction.
     */
    function hashOperation(
        address target,
        uint256 value,
        bytes calldata data,
        bytes32 predecessor,
        bytes32 salt
    ) public pure virtual returns (bytes32) {
        return keccak256(abi.encode(target, value, data, predecessor, salt));
    }

    /**
     * @dev Returns the identifier of an operation containing a batch of
     * transactions.
     */
    function hashOperationBatch(
        address[] calldata targets,
        uint256[] calldata values,
        bytes[] calldata payloads,
        bytes32 predecessor,
        bytes32 salt
    ) public pure virtual returns (bytes32) {
        return keccak256(abi.encode(targets, values, payloads, predecessor, salt));
    }

    /**
     * @dev Schedule an operation containing a single transaction.
     *
     * Emits {CallSalt} if salt is nonzero, and {CallScheduled}.
     *
     * Requirements:
     *
     * - the caller must have the 'proposer' role.
     */
    function schedule(
        address target,
        uint256 value,
        bytes calldata data,
        bytes32 predecessor,
        bytes32 salt,
        uint256 delay
    ) public virtual onlyRole(PROPOSER_ROLE) {
        bytes32 id = hashOperation(target, value, data, predecessor, salt);
        _schedule(id, delay);
        emit CallScheduled(id, 0, target, value, data, predecessor, delay);
        if (salt != bytes32(0)) {
            emit CallSalt(id, salt);
        }
    }

    /**
     * @dev Schedule an operation containing a batch of transactions.
     *
     * Emits {CallSalt} if salt is nonzero, and one {CallScheduled} event per transaction in the batch.
     *
     * Requirements:
     *
     * - the caller must have the 'proposer' role.
     */
    function scheduleBatch(
        address[] calldata targets,
        uint256[] calldata values,
        bytes[] calldata payloads,
        bytes32 predecessor,
        bytes32 salt,
        uint256 delay
    ) public virtual onlyRole(PROPOSER_ROLE) {
        if (targets.length != values.length || targets.length != payloads.length) {
            revert TimelockInvalidOperationLength(targets.length, payloads.length, values.length);
        }

        bytes32 id = hashOperationBatch(targets, values, payloads, predecessor, salt);
        _schedule(id, delay);
        for (uint256 i = 0; i < targets.length; ++i) {
            emit CallScheduled(id, i, targets[i], values[i], payloads[i], predecessor, delay);
        }
        if (salt != bytes32(0)) {
            emit CallSalt(id, salt);
        }
    }

    /**
     * @dev Schedule an operation that is to become valid after a given delay.
     */
    function _schedule(bytes32 id, uint256 delay) private {
        if (isOperation(id)) {
            revert TimelockUnexpectedOperationState(id, _encodeStateBitmap(OperationState.Unset));
        }
        uint256 minDelay = getMinDelay();
        if (delay < minDelay) {
            revert TimelockInsufficientDelay(delay, minDelay);
        }
        _timestamps[id] = block.timestamp + delay;
    }

    /**
     * @dev Cancel an operation.
     *
     * Requirements:
     *
     * - the caller must have the 'canceller' role.
     */
    function cancel(bytes32 id) public virtual onlyRole(CANCELLER_ROLE) {
        if (!isOperationPending(id)) {
            revert TimelockUnexpectedOperationState(
                id,
                _encodeStateBitmap(OperationState.Waiting) | _encodeStateBitmap(OperationState.Ready)
            );
        }
        delete _timestamps[id];

        emit Cancelled(id);
    }

    /**
     * @dev Execute an (ready) operation containing a single transaction.
     *
     * Emits a {CallExecuted} event.
     *
     * Requirements:
     *
     * - the caller must have the 'executor' role.
     */
    // This function can reenter, but it doesn't pose a risk because _afterCall checks that the proposal is pending,
    // thus any modifications to the operation during reentrancy should be caught.
    // slither-disable-next-line reentrancy-eth
    function execute(
        address target,
        uint256 value,
        bytes calldata payload,
        bytes32 predecessor,
        bytes32 salt
    ) public payable virtual onlyRoleOrOpenRole(EXECUTOR_ROLE) {
        bytes32 id = hashOperation(target, value, payload, predecessor, salt);

        _beforeCall(id, predecessor);
        _execute(target, value, payload);
        emit CallExecuted(id, 0, target, value, payload);
        _afterCall(id);
    }

    /**
     * @dev Execute an (ready) operation containing a batch of transactions.
     *
     * Emits one {CallExecuted} event per transaction in the batch.
     *
     * Requirements:
     *
     * - the caller must have the 'executor' role.
     */
    // This function can reenter, but it doesn't pose a risk because _afterCall checks that the proposal is pending,
    // thus any modifications to the operation during reentrancy should be caught.
    // slither-disable-next-line reentrancy-eth
    function executeBatch(
        address[] calldata targets,
        uint256[] calldata values,
        bytes[] calldata payloads,
        bytes32 predecessor,
        bytes32 salt
    ) public payable virtual onlyRoleOrOpenRole(EXECUTOR_ROLE) {
        if (targets.length != values.length || targets.length != payloads.length) {
            revert TimelockInvalidOperationLength(targets.length, payloads.length, values.length);
        }

        bytes32 id = hashOperationBatch(targets, values, payloads, predecessor, salt);

        _beforeCall(id, predecessor);
        for (uint256 i = 0; i < targets.length; ++i) {
            address target = targets[i];
            uint256 value = values[i];
            bytes calldata payload = payloads[i];
            _execute(target, value, payload);
            emit CallExecuted(id, i, target, value, payload);
        }
        _afterCall(id);
    }

    /**
     * @dev Execute an operation's call.
     */
    function _execute(address target, uint256 value, bytes calldata data) internal virtual {
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        Address.verifyCallResult(success, returndata);
    }

    /**
     * @dev Checks before execution of an operation's calls.
     */
    function _beforeCall(bytes32 id, bytes32 predecessor) private view {
        if (!isOperationReady(id)) {
            revert TimelockUnexpectedOperationState(id, _encodeStateBitmap(OperationState.Ready));
        }
        if (predecessor != bytes32(0) && !isOperationDone(predecessor)) {
            revert TimelockUnexecutedPredecessor(predecessor);
        }
    }

    /**
     * @dev Checks after execution of an operation's calls.
     */
    function _afterCall(bytes32 id) private {
        if (!isOperationReady(id)) {
            revert TimelockUnexpectedOperationState(id, _encodeStateBitmap(OperationState.Ready));
        }
        _timestamps[id] = _DONE_TIMESTAMP;
    }

    /**
     * @dev Changes the minimum timelock duration for future operations.
     *
     * Emits a {MinDelayChange} event.
     *
     * Requirements:
     *
     * - the caller must be the timelock itself. This can only be achieved by scheduling and later executing
     * an operation where the timelock is the target and the data is the ABI-encoded call to this function.
     */
    function updateDelay(uint256 newDelay) external virtual {
        address sender = _msgSender();
        if (sender != address(this)) {
            revert TimelockUnauthorizedCaller(sender);
        }
        emit MinDelayChange(_minDelay, newDelay);
        _minDelay = newDelay;
    }

    /**
     * @dev Encodes a `OperationState` into a `bytes32` representation where each bit enabled corresponds to
     * the underlying position in the `OperationState` enum. For example:
     *
     * 0x000...1000
     *   ^^^^^^----- ...
     *         ^---- Done
     *          ^--- Ready
     *           ^-- Waiting
     *            ^- Unset
     */
    function _encodeStateBitmap(OperationState operationState) internal pure returns (bytes32) {
        return bytes32(1 << uint8(operationState));
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (proxy/transparent/TransparentUpgradeableProxy.sol)

pragma solidity ^0.8.20;

import {ERC1967Utils} from "../ERC1967/ERC1967Utils.sol";
import {ERC1967Proxy} from "../ERC1967/ERC1967Proxy.sol";
import {IERC1967} from "../../interfaces/IERC1967.sol";
import {ProxyAdmin} from "./ProxyAdmin.sol";

/**
 * @dev Interface for {TransparentUpgradeableProxy}. In order to implement transparency, {TransparentUpgradeableProxy}
 * does not implement this interface directly, and its upgradeability mechanism is implemented by an internal dispatch
 * mechanism. The compiler is unaware that these functions are implemented by {TransparentUpgradeableProxy} and will not
 * include them in the ABI so this interface must be used to interact with it.
 */
interface ITransparentUpgradeableProxy is IERC1967 {
    function upgradeToAndCall(address, bytes calldata) external payable;
}

/**
 * @dev This contract implements a proxy that is upgradeable through an associated {ProxyAdmin} instance.
 *
 * To avoid https://medium.com/nomic-labs-blog/malicious-backdoors-in-ethereum-proxies-62629adf3357[proxy selector
 * clashing], which can potentially be used in an attack, this contract uses the
 * https://blog.openzeppelin.com/the-transparent-proxy-pattern/[transparent proxy pattern]. This pattern implies two
 * things that go hand in hand:
 *
 * 1. If any account other than the admin calls the proxy, the call will be forwarded to the implementation, even if
 * that call matches the {ITransparentUpgradeableProxy-upgradeToAndCall} function exposed by the proxy itself.
 * 2. If the admin calls the proxy, it can call the `upgradeToAndCall` function but any other call won't be forwarded to
 * the implementation. If the admin tries to call a function on the implementation it will fail with an error indicating
 * the proxy admin cannot fallback to the target implementation.
 *
 * These properties mean that the admin account can only be used for upgrading the proxy, so it's best if it's a
 * dedicated account that is not used for anything else. This will avoid headaches due to sudden errors when trying to
 * call a function from the proxy implementation. For this reason, the proxy deploys an instance of {ProxyAdmin} and
 * allows upgrades only if they come through it. You should think of the `ProxyAdmin` instance as the administrative
 * interface of the proxy, including the ability to change who can trigger upgrades by transferring ownership.
 *
 * NOTE: The real interface of this proxy is that defined in `ITransparentUpgradeableProxy`. This contract does not
 * inherit from that interface, and instead `upgradeToAndCall` is implicitly implemented using a custom dispatch
 * mechanism in `_fallback`. Consequently, the compiler will not produce an ABI for this contract. This is necessary to
 * fully implement transparency without decoding reverts caused by selector clashes between the proxy and the
 * implementation.
 *
 * NOTE: This proxy does not inherit from {Context} deliberately. The {ProxyAdmin} of this contract won't send a
 * meta-transaction in any way, and any other meta-transaction setup should be made in the implementation contract.
 *
 * IMPORTANT: This contract avoids unnecessary storage reads by setting the admin only during construction as an
 * immutable variable, preventing any changes thereafter. However, the admin slot defined in ERC-1967 can still be
 * overwritten by the implementation logic pointed to by this proxy. In such cases, the contract may end up in an
 * undesirable state where the admin slot is different from the actual admin.
 *
 * WARNING: It is not recommended to extend this contract to add additional external functions. If you do so, the
 * compiler will not check that there are no selector conflicts, due to the note above. A selector clash between any new
 * function and the functions declared in {ITransparentUpgradeableProxy} will be resolved in favor of the new one. This
 * could render the `upgradeToAndCall` function inaccessible, preventing upgradeability and compromising transparency.
 */
contract TransparentUpgradeableProxy is ERC1967Proxy {
    // An immutable address for the admin to avoid unnecessary SLOADs before each call
    // at the expense of removing the ability to change the admin once it's set.
    // This is acceptable if the admin is always a ProxyAdmin instance or similar contract
    // with its own ability to transfer the permissions to another account.
    address private immutable _admin;

    /**
     * @dev The proxy caller is the current admin, and can't fallback to the proxy target.
     */
    error ProxyDeniedAdminAccess();

    /**
     * @dev Initializes an upgradeable proxy managed by an instance of a {ProxyAdmin} with an `initialOwner`,
     * backed by the implementation at `_logic`, and optionally initialized with `_data` as explained in
     * {ERC1967Proxy-constructor}.
     */
    constructor(address _logic, address initialOwner, bytes memory _data) payable ERC1967Proxy(_logic, _data) {
        _admin = address(new ProxyAdmin(initialOwner));
        // Set the storage value and emit an event for ERC-1967 compatibility
        ERC1967Utils.changeAdmin(_proxyAdmin());
    }

    /**
     * @dev Returns the admin of this proxy.
     */
    function _proxyAdmin() internal virtual returns (address) {
        return _admin;
    }

    /**
     * @dev If caller is the admin process the call internally, otherwise transparently fallback to the proxy behavior.
     */
    function _fallback() internal virtual override {
        if (msg.sender == _proxyAdmin()) {
            if (msg.sig != ITransparentUpgradeableProxy.upgradeToAndCall.selector) {
                revert ProxyDeniedAdminAccess();
            } else {
                _dispatchUpgradeToAndCall();
            }
        } else {
            super._fallback();
        }
    }

    /**
     * @dev Upgrade the implementation of the proxy. See {ERC1967Utils-upgradeToAndCall}.
     *
     * Requirements:
     *
     * - If `data` is empty, `msg.value` must be zero.
     */
    function _dispatchUpgradeToAndCall() private {
        (address newImplementation, bytes memory data) = abi.decode(msg.data[4:], (address, bytes));
        ERC1967Utils.upgradeToAndCall(newImplementation, data);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC165.sol)

pragma solidity ^0.8.20;

import {IERC165} from "../utils/introspection/IERC165.sol";

// SPDX-License-Identifier: BSD-3-Clause
pragma solidity ^0.8.24;

interface IStrategy {
    function asset() external view returns (address);
    function totalAssets() external view returns (uint256);
    function convertToShares(uint256 assets) external view returns (uint256);
    function convertToAssets(uint256 shares) external view returns (uint256);
    function maxDeposit(address) external view returns (uint256);
    function maxMint(address) external view returns (uint256);
    function maxWithdraw(address owner) external view returns (uint256);
    function maxRedeem(address owner) external view returns (uint256);
    function previewDeposit(uint256 assets) external view returns (uint256);
    function previewMint(uint256 shares) external view returns (uint256);
    function previewWithdraw(uint256 assets) external view returns (uint256);
    function previewRedeem(uint256 shares) external view returns (uint256);
    function deposit(uint256 assets, address receiver) external returns (uint256);
    function mint(uint256 shares, address receiver) external returns (uint256);
    function withdraw(uint256 assets, address receiver, address owner) external returns (uint256);
    function redeem(uint256 shares, address receiver, address owner) external returns (uint256);
}

// SPDX-License-Identifier: BSD-3-Clause
pragma solidity ^0.8.24;

interface IValidator {
    /// @notice Validates a transaction before execution
    /// @param target The address the transaction will be sent to
    /// @param value The amount of ETH (in wei) that will be sent with the transaction
    /// @param data The calldata that will be sent with the transaction
    /// @dev This function should revert if the transaction is invalid
    /// @dev This function is called before executing a transaction
    function validate(address target, uint256 value, bytes calldata data) external view;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)

pragma solidity ^0.8.20;
import {Initializable} from "../proxy/utils/Initializable.sol";

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract ContextUpgradeable is Initializable {
    function __Context_init() internal onlyInitializing {
    }

    function __Context_init_unchained() internal onlyInitializing {
    }
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }

    function _contextSuffixLength() internal view virtual returns (uint256) {
        return 0;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/introspection/ERC165.sol)

pragma solidity ^0.8.20;

import {IERC165} from "@openzeppelin/contracts/utils/introspection/IERC165.sol";
import {Initializable} from "../../proxy/utils/Initializable.sol";

/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
 * for the additional interface id that will be supported. For example:
 *
 * ```solidity
 * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
 *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
 * }
 * ```
 */
abstract contract ERC165Upgradeable is Initializable, IERC165 {
    function __ERC165_init() internal onlyInitializing {
    }

    function __ERC165_init_unchained() internal onlyInitializing {
    }
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual returns (bool) {
        return interfaceId == type(IERC165).interfaceId;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/cryptography/ECDSA.sol)

pragma solidity ^0.8.20;

/**
 * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.
 *
 * These functions can be used to verify that a message was signed by the holder
 * of the private keys of a given address.
 */
library ECDSA {
    enum RecoverError {
        NoError,
        InvalidSignature,
        InvalidSignatureLength,
        InvalidSignatureS
    }

    /**
     * @dev The signature derives the `address(0)`.
     */
    error ECDSAInvalidSignature();

    /**
     * @dev The signature has an invalid length.
     */
    error ECDSAInvalidSignatureLength(uint256 length);

    /**
     * @dev The signature has an S value that is in the upper half order.
     */
    error ECDSAInvalidSignatureS(bytes32 s);

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with `signature` or an error. This will not
     * return address(0) without also returning an error description. Errors are documented using an enum (error type)
     * and a bytes32 providing additional information about the error.
     *
     * If no error is returned, then the address can be used for verification purposes.
     *
     * The `ecrecover` EVM precompile allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {MessageHashUtils-toEthSignedMessageHash} on it.
     *
     * Documentation for signature generation:
     * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js]
     * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers]
     */
    function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError, bytes32) {
        if (signature.length == 65) {
            bytes32 r;
            bytes32 s;
            uint8 v;
            // ecrecover takes the signature parameters, and the only way to get them
            // currently is to use assembly.
            /// @solidity memory-safe-assembly
            assembly {
                r := mload(add(signature, 0x20))
                s := mload(add(signature, 0x40))
                v := byte(0, mload(add(signature, 0x60)))
            }
            return tryRecover(hash, v, r, s);
        } else {
            return (address(0), RecoverError.InvalidSignatureLength, bytes32(signature.length));
        }
    }

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature`. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM precompile allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {MessageHashUtils-toEthSignedMessageHash} on it.
     */
    function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {
        (address recovered, RecoverError error, bytes32 errorArg) = tryRecover(hash, signature);
        _throwError(error, errorArg);
        return recovered;
    }

    /**
     * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately.
     *
     * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures]
     */
    function tryRecover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address, RecoverError, bytes32) {
        unchecked {
            bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff);
            // We do not check for an overflow here since the shift operation results in 0 or 1.
            uint8 v = uint8((uint256(vs) >> 255) + 27);
            return tryRecover(hash, v, r, s);
        }
    }

    /**
     * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately.
     */
    function recover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address) {
        (address recovered, RecoverError error, bytes32 errorArg) = tryRecover(hash, r, vs);
        _throwError(error, errorArg);
        return recovered;
    }

    /**
     * @dev Overload of {ECDSA-tryRecover} that receives the `v`,
     * `r` and `s` signature fields separately.
     */
    function tryRecover(
        bytes32 hash,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal pure returns (address, RecoverError, bytes32) {
        // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature
        // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines
        // the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most
        // signatures from current libraries generate a unique signature with an s-value in the lower half order.
        //
        // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value
        // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or
        // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept
        // these malleable signatures as well.
        if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {
            return (address(0), RecoverError.InvalidSignatureS, s);
        }

        // If the signature is valid (and not malleable), return the signer address
        address signer = ecrecover(hash, v, r, s);
        if (signer == address(0)) {
            return (address(0), RecoverError.InvalidSignature, bytes32(0));
        }

        return (signer, RecoverError.NoError, bytes32(0));
    }

    /**
     * @dev Overload of {ECDSA-recover} that receives the `v`,
     * `r` and `s` signature fields separately.
     */
    function recover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address) {
        (address recovered, RecoverError error, bytes32 errorArg) = tryRecover(hash, v, r, s);
        _throwError(error, errorArg);
        return recovered;
    }

    /**
     * @dev Optionally reverts with the corresponding custom error according to the `error` argument provided.
     */
    function _throwError(RecoverError error, bytes32 errorArg) private pure {
        if (error == RecoverError.NoError) {
            return; // no error: do nothing
        } else if (error == RecoverError.InvalidSignature) {
            revert ECDSAInvalidSignature();
        } else if (error == RecoverError.InvalidSignatureLength) {
            revert ECDSAInvalidSignatureLength(uint256(errorArg));
        } else if (error == RecoverError.InvalidSignatureS) {
            revert ECDSAInvalidSignatureS(errorArg);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/cryptography/EIP712.sol)

pragma solidity ^0.8.20;

import {MessageHashUtils} from "@openzeppelin/contracts/utils/cryptography/MessageHashUtils.sol";
import {IERC5267} from "@openzeppelin/contracts/interfaces/IERC5267.sol";
import {Initializable} from "../../proxy/utils/Initializable.sol";

/**
 * @dev https://eips.ethereum.org/EIPS/eip-712[EIP 712] is a standard for hashing and signing of typed structured data.
 *
 * The encoding scheme specified in the EIP requires a domain separator and a hash of the typed structured data, whose
 * encoding is very generic and therefore its implementation in Solidity is not feasible, thus this contract
 * does not implement the encoding itself. Protocols need to implement the type-specific encoding they need in order to
 * produce the hash of their typed data using a combination of `abi.encode` and `keccak256`.
 *
 * This contract implements the EIP 712 domain separator ({_domainSeparatorV4}) that is used as part of the encoding
 * scheme, and the final step of the encoding to obtain the message digest that is then signed via ECDSA
 * ({_hashTypedDataV4}).
 *
 * The implementation of the domain separator was designed to be as efficient as possible while still properly updating
 * the chain id to protect against replay attacks on an eventual fork of the chain.
 *
 * NOTE: This contract implements the version of the encoding known as "v4", as implemented by the JSON RPC method
 * https://docs.metamask.io/guide/signing-data.html[`eth_signTypedDataV4` in MetaMask].
 *
 * NOTE: In the upgradeable version of this contract, the cached values will correspond to the address, and the domain
 * separator of the implementation contract. This will cause the {_domainSeparatorV4} function to always rebuild the
 * separator from the immutable values, which is cheaper than accessing a cached version in cold storage.
 */
abstract contract EIP712Upgradeable is Initializable, IERC5267 {
    bytes32 private constant TYPE_HASH =
        keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)");

    /// @custom:storage-location erc7201:openzeppelin.storage.EIP712
    struct EIP712Storage {
        /// @custom:oz-renamed-from _HASHED_NAME
        bytes32 _hashedName;
        /// @custom:oz-renamed-from _HASHED_VERSION
        bytes32 _hashedVersion;

        string _name;
        string _version;
    }

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.EIP712")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant EIP712StorageLocation = 0xa16a46d94261c7517cc8ff89f61c0ce93598e3c849801011dee649a6a557d100;

    function _getEIP712Storage() private pure returns (EIP712Storage storage $) {
        assembly {
            $.slot := EIP712StorageLocation
        }
    }

    /**
     * @dev Initializes the domain separator and parameter caches.
     *
     * The meaning of `name` and `version` is specified in
     * https://eips.ethereum.org/EIPS/eip-712#definition-of-domainseparator[EIP 712]:
     *
     * - `name`: the user readable name of the signing domain, i.e. the name of the DApp or the protocol.
     * - `version`: the current major version of the signing domain.
     *
     * NOTE: These parameters cannot be changed except through a xref:learn::upgrading-smart-contracts.adoc[smart
     * contract upgrade].
     */
    function __EIP712_init(string memory name, string memory version) internal onlyInitializing {
        __EIP712_init_unchained(name, version);
    }

    function __EIP712_init_unchained(string memory name, string memory version) internal onlyInitializing {
        EIP712Storage storage $ = _getEIP712Storage();
        $._name = name;
        $._version = version;

        // Reset prior values in storage if upgrading
        $._hashedName = 0;
        $._hashedVersion = 0;
    }

    /**
     * @dev Returns the domain separator for the current chain.
     */
    function _domainSeparatorV4() internal view returns (bytes32) {
        return _buildDomainSeparator();
    }

    function _buildDomainSeparator() private view returns (bytes32) {
        return keccak256(abi.encode(TYPE_HASH, _EIP712NameHash(), _EIP712VersionHash(), block.chainid, address(this)));
    }

    /**
     * @dev Given an already https://eips.ethereum.org/EIPS/eip-712#definition-of-hashstruct[hashed struct], this
     * function returns the hash of the fully encoded EIP712 message for this domain.
     *
     * This hash can be used together with {ECDSA-recover} to obtain the signer of a message. For example:
     *
     * ```solidity
     * bytes32 digest = _hashTypedDataV4(keccak256(abi.encode(
     *     keccak256("Mail(address to,string contents)"),
     *     mailTo,
     *     keccak256(bytes(mailContents))
     * )));
     * address signer = ECDSA.recover(digest, signature);
     * ```
     */
    function _hashTypedDataV4(bytes32 structHash) internal view virtual returns (bytes32) {
        return MessageHashUtils.toTypedDataHash(_domainSeparatorV4(), structHash);
    }

    /**
     * @dev See {IERC-5267}.
     */
    function eip712Domain()
        public
        view
        virtual
        returns (
            bytes1 fields,
            string memory name,
            string memory version,
            uint256 chainId,
            address verifyingContract,
            bytes32 salt,
            uint256[] memory extensions
        )
    {
        EIP712Storage storage $ = _getEIP712Storage();
        // If the hashed name and version in storage are non-zero, the contract hasn't been properly initialized
        // and the EIP712 domain is not reliable, as it will be missing name and version.
        require($._hashedName == 0 && $._hashedVersion == 0, "EIP712: Uninitialized");

        return (
            hex"0f", // 01111
            _EIP712Name(),
            _EIP712Version(),
            block.chainid,
            address(this),
            bytes32(0),
            new uint256[](0)
        );
    }

    /**
     * @dev The name parameter for the EIP712 domain.
     *
     * NOTE: This function reads from storage by default, but can be redefined to return a constant value if gas costs
     * are a concern.
     */
    function _EIP712Name() internal view virtual returns (string memory) {
        EIP712Storage storage $ = _getEIP712Storage();
        return $._name;
    }

    /**
     * @dev The version parameter for the EIP712 domain.
     *
     * NOTE: This function reads from storage by default, but can be redefined to return a constant value if gas costs
     * are a concern.
     */
    function _EIP712Version() internal view virtual returns (string memory) {
        EIP712Storage storage $ = _getEIP712Storage();
        return $._version;
    }

    /**
     * @dev The hash of the name parameter for the EIP712 domain.
     *
     * NOTE: In previous versions this function was virtual. In this version you should override `_EIP712Name` instead.
     */
    function _EIP712NameHash() internal view returns (bytes32) {
        EIP712Storage storage $ = _getEIP712Storage();
        string memory name = _EIP712Name();
        if (bytes(name).length > 0) {
            return keccak256(bytes(name));
        } else {
            // If the name is empty, the contract may have been upgraded without initializing the new storage.
            // We return the name hash in storage if non-zero, otherwise we assume the name is empty by design.
            bytes32 hashedName = $._hashedName;
            if (hashedName != 0) {
                return hashedName;
            } else {
                return keccak256("");
            }
        }
    }

    /**
     * @dev The hash of the version parameter for the EIP712 domain.
     *
     * NOTE: In previous versions this function was virtual. In this version you should override `_EIP712Version` instead.
     */
    function _EIP712VersionHash() internal view returns (bytes32) {
        EIP712Storage storage $ = _getEIP712Storage();
        string memory version = _EIP712Version();
        if (bytes(version).length > 0) {
            return keccak256(bytes(version));
        } else {
            // If the version is empty, the contract may have been upgraded without initializing the new storage.
            // We return the version hash in storage if non-zero, otherwise we assume the version is empty by design.
            bytes32 hashedVersion = $._hashedVersion;
            if (hashedVersion != 0) {
                return hashedVersion;
            } else {
                return keccak256("");
            }
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/Nonces.sol)
pragma solidity ^0.8.20;
import {Initializable} from "../proxy/utils/Initializable.sol";

/**
 * @dev Provides tracking nonces for addresses. Nonces will only increment.
 */
abstract contract NoncesUpgradeable is Initializable {
    /**
     * @dev The nonce used for an `account` is not the expected current nonce.
     */
    error InvalidAccountNonce(address account, uint256 currentNonce);

    /// @custom:storage-location erc7201:openzeppelin.storage.Nonces
    struct NoncesStorage {
        mapping(address account => uint256) _nonces;
    }

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Nonces")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant NoncesStorageLocation = 0x5ab42ced628888259c08ac98db1eb0cf702fc1501344311d8b100cd1bfe4bb00;

    function _getNoncesStorage() private pure returns (NoncesStorage storage $) {
        assembly {
            $.slot := NoncesStorageLocation
        }
    }

    function __Nonces_init() internal onlyInitializing {
    }

    function __Nonces_init_unchained() internal onlyInitializing {
    }
    /**
     * @dev Returns the next unused nonce for an address.
     */
    function nonces(address owner) public view virtual returns (uint256) {
        NoncesStorage storage $ = _getNoncesStorage();
        return $._nonces[owner];
    }

    /**
     * @dev Consumes a nonce.
     *
     * Returns the current value and increments nonce.
     */
    function _useNonce(address owner) internal virtual returns (uint256) {
        NoncesStorage storage $ = _getNoncesStorage();
        // For each account, the nonce has an initial value of 0, can only be incremented by one, and cannot be
        // decremented or reset. This guarantees that the nonce never overflows.
        unchecked {
            // It is important to do x++ and not ++x here.
            return $._nonces[owner]++;
        }
    }

    /**
     * @dev Same as {_useNonce} but checking that `nonce` is the next valid for `owner`.
     */
    function _useCheckedNonce(address owner, uint256 nonce) internal virtual {
        uint256 current = _useNonce(owner);
        if (nonce != current) {
            revert InvalidAccountNonce(owner, current);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)

pragma solidity ^0.8.20;

import {Context} from "../utils/Context.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * The initial owner is set to the address provided by the deployer. This can
 * later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    /**
     * @dev The caller account is not authorized to perform an operation.
     */
    error OwnableUnauthorizedAccount(address account);

    /**
     * @dev The owner is not a valid owner account. (eg. `address(0)`)
     */
    error OwnableInvalidOwner(address owner);

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the address provided by the deployer as the initial owner.
     */
    constructor(address initialOwner) {
        if (initialOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(initialOwner);
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        _checkOwner();
        _;
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        if (owner() != _msgSender()) {
            revert OwnableUnauthorizedAccount(_msgSender());
        }
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby disabling any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        if (newOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/AccessControl.sol)

pragma solidity ^0.8.20;

import {IAccessControl} from "./IAccessControl.sol";
import {Context} from "../utils/Context.sol";
import {ERC165} from "../utils/introspection/ERC165.sol";

/**
 * @dev Contract module that allows children to implement role-based access
 * control mechanisms. This is a lightweight version that doesn't allow enumerating role
 * members except through off-chain means by accessing the contract event logs. Some
 * applications may benefit from on-chain enumerability, for those cases see
 * {AccessControlEnumerable}.
 *
 * Roles are referred to by their `bytes32` identifier. These should be exposed
 * in the external API and be unique. The best way to achieve this is by
 * using `public constant` hash digests:
 *
 * ```solidity
 * bytes32 public constant MY_ROLE = keccak256("MY_ROLE");
 * ```
 *
 * Roles can be used to represent a set of permissions. To restrict access to a
 * function call, use {hasRole}:
 *
 * ```solidity
 * function foo() public {
 *     require(hasRole(MY_ROLE, msg.sender));
 *     ...
 * }
 * ```
 *
 * Roles can be granted and revoked dynamically via the {grantRole} and
 * {revokeRole} functions. Each role has an associated admin role, and only
 * accounts that have a role's admin role can call {grantRole} and {revokeRole}.
 *
 * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means
 * that only accounts with this role will be able to grant or revoke other
 * roles. More complex role relationships can be created by using
 * {_setRoleAdmin}.
 *
 * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to
 * grant and revoke this role. Extra precautions should be taken to secure
 * accounts that have been granted it. We recommend using {AccessControlDefaultAdminRules}
 * to enforce additional security measures for this role.
 */
abstract contract AccessControl is Context, IAccessControl, ERC165 {
    struct RoleData {
        mapping(address account => bool) hasRole;
        bytes32 adminRole;
    }

    mapping(bytes32 role => RoleData) private _roles;

    bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;

    /**
     * @dev Modifier that checks that an account has a specific role. Reverts
     * with an {AccessControlUnauthorizedAccount} error including the required role.
     */
    modifier onlyRole(bytes32 role) {
        _checkRole(role);
        _;
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId);
    }

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) public view virtual returns (bool) {
        return _roles[role].hasRole[account];
    }

    /**
     * @dev Reverts with an {AccessControlUnauthorizedAccount} error if `_msgSender()`
     * is missing `role`. Overriding this function changes the behavior of the {onlyRole} modifier.
     */
    function _checkRole(bytes32 role) internal view virtual {
        _checkRole(role, _msgSender());
    }

    /**
     * @dev Reverts with an {AccessControlUnauthorizedAccount} error if `account`
     * is missing `role`.
     */
    function _checkRole(bytes32 role, address account) internal view virtual {
        if (!hasRole(role, account)) {
            revert AccessControlUnauthorizedAccount(account, role);
        }
    }

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) public view virtual returns (bytes32) {
        return _roles[role].adminRole;
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     *
     * May emit a {RoleGranted} event.
     */
    function grantRole(bytes32 role, address account) public virtual onlyRole(getRoleAdmin(role)) {
        _grantRole(role, account);
    }

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     *
     * May emit a {RoleRevoked} event.
     */
    function revokeRole(bytes32 role, address account) public virtual onlyRole(getRoleAdmin(role)) {
        _revokeRole(role, account);
    }

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been revoked `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `callerConfirmation`.
     *
     * May emit a {RoleRevoked} event.
     */
    function renounceRole(bytes32 role, address callerConfirmation) public virtual {
        if (callerConfirmation != _msgSender()) {
            revert AccessControlBadConfirmation();
        }

        _revokeRole(role, callerConfirmation);
    }

    /**
     * @dev Sets `adminRole` as ``role``'s admin role.
     *
     * Emits a {RoleAdminChanged} event.
     */
    function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {
        bytes32 previousAdminRole = getRoleAdmin(role);
        _roles[role].adminRole = adminRole;
        emit RoleAdminChanged(role, previousAdminRole, adminRole);
    }

    /**
     * @dev Attempts to grant `role` to `account` and returns a boolean indicating if `role` was granted.
     *
     * Internal function without access restriction.
     *
     * May emit a {RoleGranted} event.
     */
    function _grantRole(bytes32 role, address account) internal virtual returns (bool) {
        if (!hasRole(role, account)) {
            _roles[role].hasRole[account] = true;
            emit RoleGranted(role, account, _msgSender());
            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Attempts to revoke `role` to `account` and returns a boolean indicating if `role` was revoked.
     *
     * Internal function without access restriction.
     *
     * May emit a {RoleRevoked} event.
     */
    function _revokeRole(bytes32 role, address account) internal virtual returns (bool) {
        if (hasRole(role, account)) {
            _roles[role].hasRole[account] = false;
            emit RoleRevoked(role, account, _msgSender());
            return true;
        } else {
            return false;
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC721/utils/ERC721Holder.sol)

pragma solidity ^0.8.20;

import {IERC721Receiver} from "../IERC721Receiver.sol";

/**
 * @dev Implementation of the {IERC721Receiver} interface.
 *
 * Accepts all token transfers.
 * Make sure the contract is able to use its token with {IERC721-safeTransferFrom}, {IERC721-approve} or
 * {IERC721-setApprovalForAll}.
 */
abstract contract ERC721Holder is IERC721Receiver {
    /**
     * @dev See {IERC721Receiver-onERC721Received}.
     *
     * Always returns `IERC721Receiver.onERC721Received.selector`.
     */
    function onERC721Received(address, address, uint256, bytes memory) public virtual returns (bytes4) {
        return this.onERC721Received.selector;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC1155/utils/ERC1155Holder.sol)

pragma solidity ^0.8.20;

import {IERC165, ERC165} from "../../../utils/introspection/ERC165.sol";
import {IERC1155Receiver} from "../IERC1155Receiver.sol";

/**
 * @dev Simple implementation of `IERC1155Receiver` that will allow a contract to hold ERC1155 tokens.
 *
 * IMPORTANT: When inheriting this contract, you must include a way to use the received tokens, otherwise they will be
 * stuck.
 */
abstract contract ERC1155Holder is ERC165, IERC1155Receiver {
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
        return interfaceId == type(IERC1155Receiver).interfaceId || super.supportsInterface(interfaceId);
    }

    function onERC1155Received(
        address,
        address,
        uint256,
        uint256,
        bytes memory
    ) public virtual override returns (bytes4) {
        return this.onERC1155Received.selector;
    }

    function onERC1155BatchReceived(
        address,
        address,
        uint256[] memory,
        uint256[] memory,
        bytes memory
    ) public virtual override returns (bytes4) {
        return this.onERC1155BatchReceived.selector;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (proxy/ERC1967/ERC1967Utils.sol)

pragma solidity ^0.8.20;

import {IBeacon} from "../beacon/IBeacon.sol";
import {Address} from "../../utils/Address.sol";
import {StorageSlot} from "../../utils/StorageSlot.sol";

/**
 * @dev This abstract contract provides getters and event emitting update functions for
 * https://eips.ethereum.org/EIPS/eip-1967[EIP1967] slots.
 */
library ERC1967Utils {
    // We re-declare ERC-1967 events here because they can't be used directly from IERC1967.
    // This will be fixed in Solidity 0.8.21. At that point we should remove these events.
    /**
     * @dev Emitted when the implementation is upgraded.
     */
    event Upgraded(address indexed implementation);

    /**
     * @dev Emitted when the admin account has changed.
     */
    event AdminChanged(address previousAdmin, address newAdmin);

    /**
     * @dev Emitted when the beacon is changed.
     */
    event BeaconUpgraded(address indexed beacon);

    /**
     * @dev Storage slot with the address of the current implementation.
     * This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1.
     */
    // solhint-disable-next-line private-vars-leading-underscore
    bytes32 internal constant IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;

    /**
     * @dev The `implementation` of the proxy is invalid.
     */
    error ERC1967InvalidImplementation(address implementation);

    /**
     * @dev The `admin` of the proxy is invalid.
     */
    error ERC1967InvalidAdmin(address admin);

    /**
     * @dev The `beacon` of the proxy is invalid.
     */
    error ERC1967InvalidBeacon(address beacon);

    /**
     * @dev An upgrade function sees `msg.value > 0` that may be lost.
     */
    error ERC1967NonPayable();

    /**
     * @dev Returns the current implementation address.
     */
    function getImplementation() internal view returns (address) {
        return StorageSlot.getAddressSlot(IMPLEMENTATION_SLOT).value;
    }

    /**
     * @dev Stores a new address in the EIP1967 implementation slot.
     */
    function _setImplementation(address newImplementation) private {
        if (newImplementation.code.length == 0) {
            revert ERC1967InvalidImplementation(newImplementation);
        }
        StorageSlot.getAddressSlot(IMPLEMENTATION_SLOT).value = newImplementation;
    }

    /**
     * @dev Performs implementation upgrade with additional setup call if data is nonempty.
     * This function is payable only if the setup call is performed, otherwise `msg.value` is rejected
     * to avoid stuck value in the contract.
     *
     * Emits an {IERC1967-Upgraded} event.
     */
    function upgradeToAndCall(address newImplementation, bytes memory data) internal {
        _setImplementation(newImplementation);
        emit Upgraded(newImplementation);

        if (data.length > 0) {
            Address.functionDelegateCall(newImplementation, data);
        } else {
            _checkNonPayable();
        }
    }

    /**
     * @dev Storage slot with the admin of the contract.
     * This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1.
     */
    // solhint-disable-next-line private-vars-leading-underscore
    bytes32 internal constant ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;

    /**
     * @dev Returns the current admin.
     *
     * TIP: To get this value clients can read directly from the storage slot shown below (specified by EIP1967) using
     * the https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call.
     * `0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103`
     */
    function getAdmin() internal view returns (address) {
        return StorageSlot.getAddressSlot(ADMIN_SLOT).value;
    }

    /**
     * @dev Stores a new address in the EIP1967 admin slot.
     */
    function _setAdmin(address newAdmin) private {
        if (newAdmin == address(0)) {
            revert ERC1967InvalidAdmin(address(0));
        }
        StorageSlot.getAddressSlot(ADMIN_SLOT).value = newAdmin;
    }

    /**
     * @dev Changes the admin of the proxy.
     *
     * Emits an {IERC1967-AdminChanged} event.
     */
    function changeAdmin(address newAdmin) internal {
        emit AdminChanged(getAdmin(), newAdmin);
        _setAdmin(newAdmin);
    }

    /**
     * @dev The storage slot of the UpgradeableBeacon contract which defines the implementation for this proxy.
     * This is the keccak-256 hash of "eip1967.proxy.beacon" subtracted by 1.
     */
    // solhint-disable-next-line private-vars-leading-underscore
    bytes32 internal constant BEACON_SLOT = 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50;

    /**
     * @dev Returns the current beacon.
     */
    function getBeacon() internal view returns (address) {
        return StorageSlot.getAddressSlot(BEACON_SLOT).value;
    }

    /**
     * @dev Stores a new beacon in the EIP1967 beacon slot.
     */
    function _setBeacon(address newBeacon) private {
        if (newBeacon.code.length == 0) {
            revert ERC1967InvalidBeacon(newBeacon);
        }

        StorageSlot.getAddressSlot(BEACON_SLOT).value = newBeacon;

        address beaconImplementation = IBeacon(newBeacon).implementation();
        if (beaconImplementation.code.length == 0) {
            revert ERC1967InvalidImplementation(beaconImplementation);
        }
    }

    /**
     * @dev Change the beacon and trigger a setup call if data is nonempty.
     * This function is payable only if the setup call is performed, otherwise `msg.value` is rejected
     * to avoid stuck value in the contract.
     *
     * Emits an {IERC1967-BeaconUpgraded} event.
     *
     * CAUTION: Invoking this function has no effect on an instance of {BeaconProxy} since v5, since
     * it uses an immutable beacon without looking at the value of the ERC-1967 beacon slot for
     * efficiency.
     */
    function upgradeBeaconToAndCall(address newBeacon, bytes memory data) internal {
        _setBeacon(newBeacon);
        emit BeaconUpgraded(newBeacon);

        if (data.length > 0) {
            Address.functionDelegateCall(IBeacon(newBeacon).implementation(), data);
        } else {
            _checkNonPayable();
        }
    }

    /**
     * @dev Reverts if `msg.value` is not zero. It can be used to avoid `msg.value` stuck in the contract
     * if an upgrade doesn't perform an initialization call.
     */
    function _checkNonPayable() private {
        if (msg.value > 0) {
            revert ERC1967NonPayable();
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (proxy/ERC1967/ERC1967Proxy.sol)

pragma solidity ^0.8.20;

import {Proxy} from "../Proxy.sol";
import {ERC1967Utils} from "./ERC1967Utils.sol";

/**
 * @dev This contract implements an upgradeable proxy. It is upgradeable because calls are delegated to an
 * implementation address that can be changed. This address is stored in storage in the location specified by
 * https://eips.ethereum.org/EIPS/eip-1967[EIP1967], so that it doesn't conflict with the storage layout of the
 * implementation behind the proxy.
 */
contract ERC1967Proxy is Proxy {
    /**
     * @dev Initializes the upgradeable proxy with an initial implementation specified by `implementation`.
     *
     * If `_data` is nonempty, it's used as data in a delegate call to `implementation`. This will typically be an
     * encoded function call, and allows initializing the storage of the proxy like a Solidity constructor.
     *
     * Requirements:
     *
     * - If `data` is empty, `msg.value` must be zero.
     */
    constructor(address implementation, bytes memory _data) payable {
        ERC1967Utils.upgradeToAndCall(implementation, _data);
    }

    /**
     * @dev Returns the current implementation address.
     *
     * TIP: To get this value clients can read directly from the storage slot shown below (specified by EIP1967) using
     * the https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call.
     * `0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc`
     */
    function _implementation() internal view virtual override returns (address) {
        return ERC1967Utils.getImplementation();
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC1967.sol)

pragma solidity ^0.8.20;

/**
 * @dev ERC-1967: Proxy Storage Slots. This interface contains the events defined in the ERC.
 */
interface IERC1967 {
    /**
     * @dev Emitted when the implementation is upgraded.
     */
    event Upgraded(address indexed implementation);

    /**
     * @dev Emitted when the admin account has changed.
     */
    event AdminChanged(address previousAdmin, address newAdmin);

    /**
     * @dev Emitted when the beacon is changed.
     */
    event BeaconUpgraded(address indexed beacon);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/introspection/IERC165.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/cryptography/MessageHashUtils.sol)

pragma solidity ^0.8.20;

import {Strings} from "../Strings.sol";

/**
 * @dev Signature message hash utilities for producing digests to be consumed by {ECDSA} recovery or signing.
 *
 * The library provides methods for generating a hash of a message that conforms to the
 * https://eips.ethereum.org/EIPS/eip-191[EIP 191] and https://eips.ethereum.org/EIPS/eip-712[EIP 712]
 * specifications.
 */
library MessageHashUtils {
    /**
     * @dev Returns the keccak256 digest of an EIP-191 signed data with version
     * `0x45` (`personal_sign` messages).
     *
     * The digest is calculated by prefixing a bytes32 `messageHash` with
     * `"\x19Ethereum Signed Message:\n32"` and hashing the result. It corresponds with the
     * hash signed when using the https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`] JSON-RPC method.
     *
     * NOTE: The `messageHash` parameter is intended to be the result of hashing a raw message with
     * keccak256, although any bytes32 value can be safely used because the final digest will
     * be re-hashed.
     *
     * See {ECDSA-recover}.
     */
    function toEthSignedMessageHash(bytes32 messageHash) internal pure returns (bytes32 digest) {
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x00, "\x19Ethereum Signed Message:\n32") // 32 is the bytes-length of messageHash
            mstore(0x1c, messageHash) // 0x1c (28) is the length of the prefix
            digest := keccak256(0x00, 0x3c) // 0x3c is the length of the prefix (0x1c) + messageHash (0x20)
        }
    }

    /**
     * @dev Returns the keccak256 digest of an EIP-191 signed data with version
     * `0x45` (`personal_sign` messages).
     *
     * The digest is calculated by prefixing an arbitrary `message` with
     * `"\x19Ethereum Signed Message:\n" + len(message)` and hashing the result. It corresponds with the
     * hash signed when using the https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`] JSON-RPC method.
     *
     * See {ECDSA-recover}.
     */
    function toEthSignedMessageHash(bytes memory message) internal pure returns (bytes32) {
        return
            keccak256(bytes.concat("\x19Ethereum Signed Message:\n", bytes(Strings.toString(message.length)), message));
    }

    /**
     * @dev Returns the keccak256 digest of an EIP-191 signed data with version
     * `0x00` (data with intended validator).
     *
     * The digest is calculated by prefixing an arbitrary `data` with `"\x19\x00"` and the intended
     * `validator` address. Then hashing the result.
     *
     * See {ECDSA-recover}.
     */
    function toDataWithIntendedValidatorHash(address validator, bytes memory data) internal pure returns (bytes32) {
        return keccak256(abi.encodePacked(hex"19_00", validator, data));
    }

    /**
     * @dev Returns the keccak256 digest of an EIP-712 typed data (EIP-191 version `0x01`).
     *
     * The digest is calculated from a `domainSeparator` and a `structHash`, by prefixing them with
     * `\x19\x01` and hashing the result. It corresponds to the hash signed by the
     * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`] JSON-RPC method as part of EIP-712.
     *
     * See {ECDSA-recover}.
     */
    function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32 digest) {
        /// @solidity memory-safe-assembly
        assembly {
            let ptr := mload(0x40)
            mstore(ptr, hex"19_01")
            mstore(add(ptr, 0x02), domainSeparator)
            mstore(add(ptr, 0x22), structHash)
            digest := keccak256(ptr, 0x42)
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC5267.sol)

pragma solidity ^0.8.20;

interface IERC5267 {
    /**
     * @dev MAY be emitted to signal that the domain could have changed.
     */
    event EIP712DomainChanged();

    /**
     * @dev returns the fields and values that describe the domain separator used by this contract for EIP-712
     * signature.
     */
    function eip712Domain()
        external
        view
        returns (
            bytes1 fields,
            string memory name,
            string memory version,
            uint256 chainId,
            address verifyingContract,
            bytes32 salt,
            uint256[] memory extensions
        );
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/introspection/ERC165.sol)

pragma solidity ^0.8.20;

import {IERC165} from "./IERC165.sol";

/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
 * for the additional interface id that will be supported. For example:
 *
 * ```solidity
 * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
 *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
 * }
 * ```
 */
abstract contract ERC165 is IERC165 {
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual returns (bool) {
        return interfaceId == type(IERC165).interfaceId;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC721/IERC721Receiver.sol)

pragma solidity ^0.8.20;

/**
 * @title ERC721 token receiver interface
 * @dev Interface for any contract that wants to support safeTransfers
 * from ERC721 asset contracts.
 */
interface IERC721Receiver {
    /**
     * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
     * by `operator` from `from`, this function is called.
     *
     * It must return its Solidity selector to confirm the token transfer.
     * If any other value is returned or the interface is not implemented by the recipient, the transfer will be
     * reverted.
     *
     * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.
     */
    function onERC721Received(
        address operator,
        address from,
        uint256 tokenId,
        bytes calldata data
    ) external returns (bytes4);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC1155/IERC1155Receiver.sol)

pragma solidity ^0.8.20;

import {IERC165} from "../../utils/introspection/IERC165.sol";

/**
 * @dev Interface that must be implemented by smart contracts in order to receive
 * ERC-1155 token transfers.
 */
interface IERC1155Receiver is IERC165 {
    /**
     * @dev Handles the receipt of a single ERC1155 token type. This function is
     * called at the end of a `safeTransferFrom` after the balance has been updated.
     *
     * NOTE: To accept the transfer, this must return
     * `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))`
     * (i.e. 0xf23a6e61, or its own function selector).
     *
     * @param operator The address which initiated the transfer (i.e. msg.sender)
     * @param from The address which previously owned the token
     * @param id The ID of the token being transferred
     * @param value The amount of tokens being transferred
     * @param data Additional data with no specified format
     * @return `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))` if transfer is allowed
     */
    function onERC1155Received(
        address operator,
        address from,
        uint256 id,
        uint256 value,
        bytes calldata data
    ) external returns (bytes4);

    /**
     * @dev Handles the receipt of a multiple ERC1155 token types. This function
     * is called at the end of a `safeBatchTransferFrom` after the balances have
     * been updated.
     *
     * NOTE: To accept the transfer(s), this must return
     * `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))`
     * (i.e. 0xbc197c81, or its own function selector).
     *
     * @param operator The address which initiated the batch transfer (i.e. msg.sender)
     * @param from The address which previously owned the token
     * @param ids An array containing ids of each token being transferred (order and length must match values array)
     * @param values An array containing amounts of each token being transferred (order and length must match ids array)
     * @param data Additional data with no specified format
     * @return `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))` if transfer is allowed
     */
    function onERC1155BatchReceived(
        address operator,
        address from,
        uint256[] calldata ids,
        uint256[] calldata values,
        bytes calldata data
    ) external returns (bytes4);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (proxy/beacon/IBeacon.sol)

pragma solidity ^0.8.20;

/**
 * @dev This is the interface that {BeaconProxy} expects of its beacon.
 */
interface IBeacon {
    /**
     * @dev Must return an address that can be used as a delegate call target.
     *
     * {UpgradeableBeacon} will check that this address is a contract.
     */
    function implementation() external view returns (address);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/StorageSlot.sol)
// This file was procedurally generated from scripts/generate/templates/StorageSlot.js.

pragma solidity ^0.8.20;

/**
 * @dev Library for reading and writing primitive types to specific storage slots.
 *
 * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.
 * This library helps with reading and writing to such slots without the need for inline assembly.
 *
 * The functions in this library return Slot structs that contain a `value` member that can be used to read or write.
 *
 * Example usage to set ERC1967 implementation slot:
 * ```solidity
 * contract ERC1967 {
 *     bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
 *
 *     function _getImplementation() internal view returns (address) {
 *         return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
 *     }
 *
 *     function _setImplementation(address newImplementation) internal {
 *         require(newImplementation.code.length > 0);
 *         StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
 *     }
 * }
 * ```
 */
library StorageSlot {
    struct AddressSlot {
        address value;
    }

    struct BooleanSlot {
        bool value;
    }

    struct Bytes32Slot {
        bytes32 value;
    }

    struct Uint256Slot {
        uint256 value;
    }

    struct StringSlot {
        string value;
    }

    struct BytesSlot {
        bytes value;
    }

    /**
     * @dev Returns an `AddressSlot` with member `value` located at `slot`.
     */
    function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `BooleanSlot` with member `value` located at `slot`.
     */
    function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `Bytes32Slot` with member `value` located at `slot`.
     */
    function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `Uint256Slot` with member `value` located at `slot`.
     */
    function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `StringSlot` with member `value` located at `slot`.
     */
    function getStringSlot(bytes32 slot) internal pure returns (StringSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `StringSlot` representation of the string storage pointer `store`.
     */
    function getStringSlot(string storage store) internal pure returns (StringSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := store.slot
        }
    }

    /**
     * @dev Returns an `BytesSlot` with member `value` located at `slot`.
     */
    function getBytesSlot(bytes32 slot) internal pure returns (BytesSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `BytesSlot` representation of the bytes storage pointer `store`.
     */
    function getBytesSlot(bytes storage store) internal pure returns (BytesSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := store.slot
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (proxy/Proxy.sol)

pragma solidity ^0.8.20;

/**
 * @dev This abstract contract provides a fallback function that delegates all calls to another contract using the EVM
 * instruction `delegatecall`. We refer to the second contract as the _implementation_ behind the proxy, and it has to
 * be specified by overriding the virtual {_implementation} function.
 *
 * Additionally, delegation to the implementation can be triggered manually through the {_fallback} function, or to a
 * different contract through the {_delegate} function.
 *
 * The success and return data of the delegated call will be returned back to the caller of the proxy.
 */
abstract contract Proxy {
    /**
     * @dev Delegates the current call to `implementation`.
     *
     * This function does not return to its internal call site, it will return directly to the external caller.
     */
    function _delegate(address implementation) internal virtual {
        assembly {
            // Copy msg.data. We take full control of memory in this inline assembly
            // block because it will not return to Solidity code. We overwrite the
            // Solidity scratch pad at memory position 0.
            calldatacopy(0, 0, calldatasize())

            // Call the implementation.
            // out and outsize are 0 because we don't know the size yet.
            let result := delegatecall(gas(), implementation, 0, calldatasize(), 0, 0)

            // Copy the returned data.
            returndatacopy(0, 0, returndatasize())

            switch result
            // delegatecall returns 0 on error.
            case 0 {
                revert(0, returndatasize())
            }
            default {
                return(0, returndatasize())
            }
        }
    }

    /**
     * @dev This is a virtual function that should be overridden so it returns the address to which the fallback
     * function and {_fallback} should delegate.
     */
    function _implementation() internal view virtual returns (address);

    /**
     * @dev Delegates the current call to the address returned by `_implementation()`.
     *
     * This function does not return to its internal call site, it will return directly to the external caller.
     */
    function _fallback() internal virtual {
        _delegate(_implementation());
    }

    /**
     * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if no other
     * function in the contract matches the call data.
     */
    fallback() external payable virtual {
        _fallback();
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/Strings.sol)

pragma solidity ^0.8.20;

import {Math} from "./math/Math.sol";
import {SignedMath} from "./math/SignedMath.sol";

/**
 * @dev String operations.
 */
library Strings {
    bytes16 private constant HEX_DIGITS = "0123456789abcdef";
    uint8 private constant ADDRESS_LENGTH = 20;

    /**
     * @dev The `value` string doesn't fit in the specified `length`.
     */
    error StringsInsufficientHexLength(uint256 value, uint256 length);

    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory) {
        unchecked {
            uint256 length = Math.log10(value) + 1;
            string memory buffer = new string(length);
            uint256 ptr;
            /// @solidity memory-safe-assembly
            assembly {
                ptr := add(buffer, add(32, length))
            }
            while (true) {
                ptr--;
                /// @solidity memory-safe-assembly
                assembly {
                    mstore8(ptr, byte(mod(value, 10), HEX_DIGITS))
                }
                value /= 10;
                if (value == 0) break;
            }
            return buffer;
        }
    }

    /**
     * @dev Converts a `int256` to its ASCII `string` decimal representation.
     */
    function toStringSigned(int256 value) internal pure returns (string memory) {
        return string.concat(value < 0 ? "-" : "", toString(SignedMath.abs(value)));
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        unchecked {
            return toHexString(value, Math.log256(value) + 1);
        }
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
     */
    function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
        uint256 localValue = value;
        bytes memory buffer = new bytes(2 * length + 2);
        buffer[0] = "0";
        buffer[1] = "x";
        for (uint256 i = 2 * length + 1; i > 1; --i) {
            buffer[i] = HEX_DIGITS[localValue & 0xf];
            localValue >>= 4;
        }
        if (localValue != 0) {
            revert StringsInsufficientHexLength(value, length);
        }
        return string(buffer);
    }

    /**
     * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal
     * representation.
     */
    function toHexString(address addr) internal pure returns (string memory) {
        return toHexString(uint256(uint160(addr)), ADDRESS_LENGTH);
    }

    /**
     * @dev Returns true if the two strings are equal.
     */
    function equal(string memory a, string memory b) internal pure returns (bool) {
        return bytes(a).length == bytes(b).length && keccak256(bytes(a)) == keccak256(bytes(b));
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/math/SignedMath.sol)

pragma solidity ^0.8.20;

/**
 * @dev Standard signed math utilities missing in the Solidity language.
 */
library SignedMath {
    /**
     * @dev Returns the largest of two signed numbers.
     */
    function max(int256 a, int256 b) internal pure returns (int256) {
        return a > b ? a : b;
    }

    /**
     * @dev Returns the smallest of two signed numbers.
     */
    function min(int256 a, int256 b) internal pure returns (int256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two signed numbers without overflow.
     * The result is rounded towards zero.
     */
    function average(int256 a, int256 b) internal pure returns (int256) {
        // Formula from the book "Hacker's Delight"
        int256 x = (a & b) + ((a ^ b) >> 1);
        return x + (int256(uint256(x) >> 255) & (a ^ b));
    }

    /**
     * @dev Returns the absolute unsigned value of a signed value.
     */
    function abs(int256 n) internal pure returns (uint256) {
        unchecked {
            // must be unchecked in order to support `n = type(int256).min`
            return uint256(n >= 0 ? n : -n);
        }
    }
}

{
  "remappings": [
    "forge-std/=lib/forge-std/src/",
    "@yieldnest-vault/=lib/yieldnest-flex-strategy/lib/yieldnest-vault/src/",
    "lib/openzeppelin-contracts/=lib/yieldnest-flex-strategy/lib/yieldnest-vault/lib/openzeppelin-contracts/",
    "lib/openzeppelin-contracts-upgradeable/=lib/yieldnest-flex-strategy/lib/yieldnest-vault/lib/openzeppelin-contracts-upgradeable/",
    "openzeppelin-contracts-upgradeable/=lib/yieldnest-flex-strategy/lib/yieldnest-vault/lib/openzeppelin-contracts-upgradeable/",
    "openzeppelin-contracts/=lib/yieldnest-flex-strategy/lib/yieldnest-vault/lib/openzeppelin-contracts/",
    "lib/yieldnest-vault/=lib/yieldnest-flex-strategy/lib/yieldnest-vault/",
    "lib/yieldnest-flex-strategy/lib/yieldnest-vault:src/=lib/yieldnest-flex-strategy/lib/yieldnest-vault/src/",
    "lib/yieldnest-flex-strategy/lib/yieldnest-vault:script/=lib/yieldnest-flex-strategy/lib/yieldnest-vault/script/",
    "script/=lib/yieldnest-flex-strategy/script/",
    "@script/=script/",
    "lib/yieldnest-flex-strategy:src/=lib/yieldnest-flex-strategy/src/",
    "@openzeppelin/contracts-upgradeable/=lib/yieldnest-flex-strategy/lib/yieldnest-vault/lib/openzeppelin-contracts-upgradeable/contracts/",
    "@openzeppelin/contracts/=lib/yieldnest-flex-strategy/lib/yieldnest-vault/lib/openzeppelin-contracts/contracts/",
    "@yieldnest-vault-script/=lib/yieldnest-flex-strategy/lib/yieldnest-vault/script/",
    "ds-test/=lib/yieldnest-flex-strategy/lib/yieldnest-vault/lib/openzeppelin-contracts-upgradeable/lib/forge-std/lib/ds-test/src/",
    "erc4626-tests/=lib/yieldnest-flex-strategy/lib/yieldnest-vault/lib/openzeppelin-contracts-upgradeable/lib/erc4626-tests/",
    "halmos-cheatcodes/=lib/yieldnest-flex-strategy/lib/yieldnest-vault/lib/wrapped-token/lib/openzeppelin-contracts-upgradeable/lib/halmos-cheatcodes/src/",
    "lib/forge-std/src/=lib/yieldnest-flex-strategy/lib/forge-std/src/",
    "wrapped-token/=lib/yieldnest-flex-strategy/lib/yieldnest-vault/lib/wrapped-token/src/",
    "yieldnest-flex-strategy/=lib/yieldnest-flex-strategy/",
    "yieldnest-vault/=lib/yieldnest-flex-strategy/lib/yieldnest-vault/",
    "lib/yieldnest-vault:src/=lib/yieldnest-flex-strategy/lib/yieldnest-vault/src/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 100
  },
  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "ipfs",
    "appendCBOR": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "cancun",
  "viaIR": false,
  "libraries": {
    "lib/yieldnest-flex-strategy/src/FlexStrategy.sol": {
      "VaultLib": "0x46368a8dc7ee8646cd009d44c55dc461d21c57c0"
    }
  }
}

• No Contract Security Audit Submitted- Submit Audit Here

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IVault.AssetUpdateFields","name":"fields","type":"tuple"}],"name":"updateAsset","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"assets","type":"uint256"},{"internalType":"address","name":"receiver","type":"address"},{"internalType":"address","name":"owner","type":"address"}],"name":"withdraw","outputs":[{"internalType":"uint256","name":"shares","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"asset_","type":"address"},{"internalType":"uint256","name":"assets","type":"uint256"},{"internalType":"address","name":"receiver","type":"address"},{"internalType":"address","name":"owner","type":"address"}],"name":"withdrawAsset","outputs":[{"internalType":"uint256","name":"shares","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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