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// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.0;

import {IERC20} from "../../dependencies/openzeppelin/contracts/IERC20.sol";
import {GPv2SafeERC20} from "../../dependencies/gnosis/contracts/GPv2SafeERC20.sol";
import {SafeCast} from "../../dependencies/openzeppelin/contracts/SafeCast.sol";
import {VersionedInitializable} from "../libraries/paraspace-upgradeability/VersionedInitializable.sol";
import {Errors} from "../libraries/helpers/Errors.sol";
import {WadRayMath} from "../libraries/math/WadRayMath.sol";
import {IPool} from "../../interfaces/IPool.sol";
import {IPToken} from "../../interfaces/IPToken.sol";
import {IRewardController} from "../../interfaces/IRewardController.sol";
import {IInitializablePToken} from "../../interfaces/IInitializablePToken.sol";
import {ScaledBalanceTokenBaseERC20} from "./base/ScaledBalanceTokenBaseERC20.sol";
import {IncentivizedERC20} from "./base/IncentivizedERC20.sol";
import {EIP712Base} from "./base/EIP712Base.sol";
import {XTokenType} from "../../interfaces/IXTokenType.sol";
import {ITimeLock} from "../../interfaces/ITimeLock.sol";
import {DataTypes} from "../libraries/types/DataTypes.sol";
import {ICApe} from "../../interfaces/ICApe.sol";
import {IAutoCompoundApe} from "../../interfaces/IAutoCompoundApe.sol";

/**
 * @title ParaSpace ERC20 PToken
 *
 * @notice Implementation of the interest bearing token for the ParaSpace protocol
 */
contract PToken is
    VersionedInitializable,
    ScaledBalanceTokenBaseERC20,
    EIP712Base,
    IPToken
{
    using WadRayMath for uint256;
    using SafeCast for uint256;
    using GPv2SafeERC20 for IERC20;

    bytes32 public constant PERMIT_TYPEHASH =
        keccak256(
            "Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)"
        );

    uint256 public constant PTOKEN_REVISION = 149;

    address internal _treasury;
    address internal _underlyingAsset;
    uint256[50] private __gap;

    /// @inheritdoc VersionedInitializable
    function getRevision() internal pure virtual override returns (uint256) {
        return PTOKEN_REVISION;
    }

    /**
     * @dev Constructor.
     * @param pool The address of the Pool contract
     */
    constructor(IPool pool)
        ScaledBalanceTokenBaseERC20(pool, "PTOKEN_IMPL", "PTOKEN_IMPL", 0)
        EIP712Base()
    {
        // Intentionally left blank
    }

    /// @inheritdoc IInitializablePToken
    function initialize(
        IPool initializingPool,
        address treasury,
        address underlyingAsset,
        IRewardController incentivesController,
        uint8 pTokenDecimals,
        string calldata pTokenName,
        string calldata pTokenSymbol,
        bytes calldata params
    ) external override initializer {
        require(initializingPool == POOL, Errors.POOL_ADDRESSES_DO_NOT_MATCH);
        _setName(pTokenName);
        _setSymbol(pTokenSymbol);
        _setDecimals(pTokenDecimals);

        require(underlyingAsset != address(0), Errors.ZERO_ADDRESS_NOT_VALID);
        _treasury = treasury;
        _underlyingAsset = underlyingAsset;
        _rewardController = incentivesController;

        _domainSeparator = _calculateDomainSeparator();

        emit Initialized(
            underlyingAsset,
            address(POOL),
            treasury,
            address(incentivesController),
            pTokenDecimals,
            pTokenName,
            pTokenSymbol,
            params
        );
    }

    /// @inheritdoc IPToken
    function mint(
        address caller,
        address onBehalfOf,
        uint256 amount,
        uint256 index
    ) external virtual override onlyPool returns (bool) {
        return _mintScaled(caller, onBehalfOf, amount, index);
    }

    /// @inheritdoc IPToken
    function burn(
        address from,
        address receiverOfUnderlying,
        uint256 amount,
        uint256 index,
        DataTypes.TimeLockParams calldata timeLockParams
    ) external virtual override onlyPool {
        _burnScaled(from, receiverOfUnderlying, amount, index);
        if (receiverOfUnderlying != address(this)) {
            if (timeLockParams.releaseTime != 0) {
                ITimeLock timeLock = POOL.TIME_LOCK();
                uint256[] memory amounts = new uint256[](1);
                amounts[0] = amount;

                timeLock.createAgreement(
                    DataTypes.AssetType.ERC20,
                    timeLockParams.actionType,
                    _underlyingAsset,
                    amounts,
                    receiverOfUnderlying,
                    timeLockParams.releaseTime
                );
                receiverOfUnderlying = address(timeLock);
            }
            IERC20(_underlyingAsset).safeTransfer(receiverOfUnderlying, amount);
        }
    }

    /// @inheritdoc IPToken
    function mintToTreasury(uint256 amount, uint256 index)
        external
        virtual
        override
        onlyPool
    {
        if (amount == 0) {
            return;
        }
        _mintScaled(address(POOL), _treasury, amount, index);
    }

    /// @inheritdoc IPToken
    function transferOnLiquidation(
        address from,
        address to,
        uint256 value
    ) external virtual override onlyPool {
        _transfer(from, to, value, false);
    }

    /// @inheritdoc IERC20
    function balanceOf(address user)
        public
        view
        virtual
        override(IncentivizedERC20, IERC20)
        returns (uint256)
    {
        return
            super.balanceOf(user).rayMul(
                POOL.getReserveNormalizedIncome(_underlyingAsset)
            );
    }

    /// @inheritdoc IERC20
    function totalSupply()
        public
        view
        virtual
        override(IncentivizedERC20, IERC20)
        returns (uint256)
    {
        uint256 currentSupplyScaled = super.totalSupply();

        if (currentSupplyScaled == 0) {
            return 0;
        }

        return
            currentSupplyScaled.rayMul(
                POOL.getReserveNormalizedIncome(_underlyingAsset)
            );
    }

    /// @inheritdoc IPToken
    function RESERVE_TREASURY_ADDRESS()
        external
        view
        override
        returns (address)
    {
        return _treasury;
    }

    /// @inheritdoc IPToken
    function UNDERLYING_ASSET_ADDRESS()
        external
        view
        override
        returns (address)
    {
        return _underlyingAsset;
    }

    /// @inheritdoc IPToken
    function transferUnderlyingTo(
        address target,
        uint256 amount,
        DataTypes.TimeLockParams calldata timeLockParams
    ) external virtual override onlyPool {
        if (timeLockParams.releaseTime != 0) {
            ITimeLock timeLock = POOL.TIME_LOCK();
            uint256[] memory amounts = new uint256[](1);
            amounts[0] = amount;

            timeLock.createAgreement(
                DataTypes.AssetType.ERC20,
                timeLockParams.actionType,
                _underlyingAsset,
                amounts,
                target,
                timeLockParams.releaseTime
            );
            target = address(timeLock);
        }
        IERC20(_underlyingAsset).safeTransfer(target, amount);
    }

    /// @inheritdoc IPToken
    function handleRepayment(address user, uint256 amount)
        external
        virtual
        override
        onlyPool
    {
        // Intentionally left blank
    }

    /// @inheritdoc IPToken
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external override {
        require(owner != address(0), Errors.ZERO_ADDRESS_NOT_VALID);
        //solium-disable-next-line
        require(block.timestamp <= deadline, Errors.INVALID_EXPIRATION);
        uint256 currentValidNonce = _nonces[owner];
        bytes32 digest = keccak256(
            abi.encodePacked(
                "\x19\x01",
                DOMAIN_SEPARATOR(),
                keccak256(
                    abi.encode(
                        PERMIT_TYPEHASH,
                        owner,
                        spender,
                        value,
                        currentValidNonce,
                        deadline
                    )
                )
            )
        );
        require(owner == ecrecover(digest, v, r, s), Errors.INVALID_SIGNATURE);
        _nonces[owner] = currentValidNonce + 1;
        _approve(owner, spender, value);
    }

    /**
     * @notice Transfers the pTokens between two users. Validates the transfer
     * (ie checks for valid HF after the transfer) if required
     * @param from The source address
     * @param to The destination address
     * @param amount The amount getting transferred
     * @param validate True if the transfer needs to be validated, false otherwise
     **/
    function _transfer(
        address from,
        address to,
        uint256 amount,
        bool validate
    ) internal virtual {
        address underlyingAsset = _underlyingAsset;

        uint256 index = POOL.getReserveNormalizedIncome(underlyingAsset);

        uint256 fromBalanceBefore = super.balanceOf(from).rayMul(index);
        uint256 toBalanceBefore = super.balanceOf(to).rayMul(index);

        super._transferScaled(from, to, amount, index);

        if (validate) {
            POOL.finalizeTransfer(
                underlyingAsset,
                from,
                to,
                false,
                amount,
                fromBalanceBefore,
                toBalanceBefore
            );
        }

        emit Transfer(from, to, amount);
    }

    /**
     * @notice Overrides the parent _transfer to force validated transfer() and transferFrom()
     * @param from The source address
     * @param to The destination address
     * @param amount The amount getting transferred
     **/
    function _transfer(
        address from,
        address to,
        uint128 amount
    ) internal virtual override {
        _transfer(from, to, amount, true);
    }

    /**
     * @dev Overrides the base function to fully implement IPToken
     * @dev see `IncentivizedERC20.DOMAIN_SEPARATOR()` for more detailed documentation
     */
    function DOMAIN_SEPARATOR()
        public
        view
        override(IPToken, EIP712Base)
        returns (bytes32)
    {
        return super.DOMAIN_SEPARATOR();
    }

    /**
     * @dev Overrides the base function to fully implement IPToken
     * @dev see `IncentivizedERC20.nonces()` for more detailed documentation
     */
    function nonces(address owner)
        public
        view
        override(IPToken, EIP712Base)
        returns (uint256)
    {
        return super.nonces(owner);
    }

    /// @inheritdoc EIP712Base
    function _EIP712BaseId() internal view override returns (string memory) {
        return name();
    }

    /// @inheritdoc IPToken
    function rescueTokens(
        address token,
        address to,
        uint256 amount
    ) external override onlyPoolAdmin {
        require(token != _underlyingAsset, Errors.UNDERLYING_CANNOT_BE_RESCUED);
        IERC20(token).safeTransfer(to, amount);
    }

    function getXTokenType()
        external
        pure
        virtual
        override
        returns (XTokenType)
    {
        return XTokenType.PToken;
    }

    function claimUnderlying(
        address timeLockV1,
        address cApeV1,
        address cApeV2,
        address apeCoin,
        uint256[] calldata agreementIds
    ) external virtual onlyPool returns (uint256) {
        address underlyingAsset = _underlyingAsset;
        bool isCApeV2 = underlyingAsset == address(cApeV2);
        uint256 beforeBalance = isCApeV2
            ? IERC20(cApeV1).balanceOf(address(this))
            : IERC20(underlyingAsset).balanceOf(address(this));

        ITimeLock(timeLockV1).claim(agreementIds);

        if (!isCApeV2) {
            return
                IERC20(underlyingAsset).balanceOf(address(this)) -
                beforeBalance;
        }

        uint256 diff = IERC20(cApeV1).balanceOf(address(this)) - beforeBalance;
        if (diff == 0) {
            return 0;
        }

        IAutoCompoundApe(cApeV1).withdraw(diff);
        if (IERC20(apeCoin).allowance(address(this), address(cApeV2)) == 0) {
            IERC20(apeCoin).approve(cApeV2, type(uint256).max);
        }
        IAutoCompoundApe(cApeV2).deposit(address(this), diff);
        return diff;
    }
}

// SPDX-License-Identifier: LGPL-3.0-or-later
pragma solidity ^0.8.0;

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

/// @title Gnosis Protocol v2 Safe ERC20 Transfer Library
/// @author Gnosis Developers
/// @dev Gas-efficient version of Openzeppelin's SafeERC20 contract.
library GPv2SafeERC20 {
    /// @dev Wrapper around a call to the ERC20 function `transfer` that reverts
    /// also when the token returns `false`.
    function safeTransfer(
        IERC20 token,
        address to,
        uint256 value
    ) internal {
        bytes4 selector_ = token.transfer.selector;

        // solhint-disable-next-line no-inline-assembly
        assembly {
            let freeMemoryPointer := mload(0x40)
            mstore(freeMemoryPointer, selector_)
            mstore(
                add(freeMemoryPointer, 4),
                and(to, 0xffffffffffffffffffffffffffffffffffffffff)
            )
            mstore(add(freeMemoryPointer, 36), value)

            if iszero(call(gas(), token, 0, freeMemoryPointer, 68, 0, 0)) {
                returndatacopy(0, 0, returndatasize())
                revert(0, returndatasize())
            }
        }

        require(getLastTransferResult(token), "GPv2: failed transfer");
    }

    /// @dev Wrapper around a call to the ERC20 function `transferFrom` that
    /// reverts also when the token returns `false`.
    function safeTransferFrom(
        IERC20 token,
        address from,
        address to,
        uint256 value
    ) internal {
        bytes4 selector_ = token.transferFrom.selector;

        // solhint-disable-next-line no-inline-assembly
        assembly {
            let freeMemoryPointer := mload(0x40)
            mstore(freeMemoryPointer, selector_)
            mstore(
                add(freeMemoryPointer, 4),
                and(from, 0xffffffffffffffffffffffffffffffffffffffff)
            )
            mstore(
                add(freeMemoryPointer, 36),
                and(to, 0xffffffffffffffffffffffffffffffffffffffff)
            )
            mstore(add(freeMemoryPointer, 68), value)

            if iszero(call(gas(), token, 0, freeMemoryPointer, 100, 0, 0)) {
                returndatacopy(0, 0, returndatasize())
                revert(0, returndatasize())
            }
        }

        require(getLastTransferResult(token), "GPv2: failed transferFrom");
    }

    /// @dev Verifies that the last return was a successful `transfer*` call.
    /// This is done by checking that the return data is either empty, or
    /// is a valid ABI encoded boolean.
    function getLastTransferResult(IERC20 token)
        private
        view
        returns (bool success)
    {
        // NOTE: Inspecting previous return data requires assembly. Note that
        // we write the return data to memory 0 in the case where the return
        // data size is 32, this is OK since the first 64 bytes of memory are
        // reserved by Solidy as a scratch space that can be used within
        // assembly blocks.
        // <https://docs.soliditylang.org/en/v0.7.6/internals/layout_in_memory.html>
        // solhint-disable-next-line no-inline-assembly
        assembly {
            /// @dev Revert with an ABI encoded Solidity error with a message
            /// that fits into 32-bytes.
            ///
            /// An ABI encoded Solidity error has the following memory layout:
            ///
            /// ------------+----------------------------------
            ///  byte range | value
            /// ------------+----------------------------------
            ///  0x00..0x04 |        selector("Error(string)")
            ///  0x04..0x24 |      string offset (always 0x20)
            ///  0x24..0x44 |                    string length
            ///  0x44..0x64 | string value, padded to 32-bytes
            function revertWithMessage(length, message) {
                mstore(0x00, "\x08\xc3\x79\xa0")
                mstore(0x04, 0x20)
                mstore(0x24, length)
                mstore(0x44, message)
                revert(0x00, 0x64)
            }

            switch returndatasize()
            // Non-standard ERC20 transfer without return.
            case 0 {
                // NOTE: When the return data size is 0, verify that there
                // is code at the address. This is done in order to maintain
                // compatibility with Solidity calling conventions.
                // <https://docs.soliditylang.org/en/v0.7.6/control-structures.html#external-function-calls>
                if iszero(extcodesize(token)) {
                    revertWithMessage(20, "GPv2: not a contract")
                }

                success := 1
            }
            // Standard ERC20 transfer returning boolean success value.
            case 32 {
                returndatacopy(0, 0, returndatasize())

                // NOTE: For ABI encoding v1, any non-zero value is accepted
                // as `true` for a boolean. In order to stay compatible with
                // OpenZeppelin's `SafeERC20` library which is known to work
                // with the existing ERC20 implementation we care about,
                // make sure we return success for any non-zero return value
                // from the `transfer*` call.
                success := iszero(iszero(mload(0)))
            }
            default {
                revertWithMessage(31, "GPv2: malformed transfer result")
            }
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol)

pragma solidity ^0.8.0;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 0;
    }

    /**
     * @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://diligence.consensys.net/posts/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/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @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, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * 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.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCall(target, data, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @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`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        require(isContract(target), "Address: call to non-contract");

        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");

        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(isContract(target), "Address: delegate call to non-contract");

        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            // 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(errorMessage);
            }
        }
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

/*
 * @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 GSN 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 payable) {
        return payable(msg.sender);
    }

    function _msgData() internal view virtual returns (bytes memory) {
        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
        return msg.data;
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "./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);
 * }
 * ```
 *
 * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
 */
abstract contract ERC165 is IERC165 {
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId)
        public
        view
        virtual
        override
        returns (bool)
    {
        return interfaceId == type(IERC165).interfaceId;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC721/ERC721.sol)

pragma solidity ^0.8.0;

import "./IERC721.sol";
import "./IERC721Receiver.sol";
import "./IERC721Metadata.sol";
import "./Address.sol";
import "./Context.sol";
import "./Strings.sol";
import "./ERC165.sol";

/**
 * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
 * the Metadata extension, but not including the Enumerable extension, which is available separately as
 * {ERC721Enumerable}.
 */
contract ERC721 is Context, ERC165, IERC721, IERC721Metadata {
    using Address for address;
    using Strings for uint256;

    // Token name
    string private _name;

    // Token symbol
    string private _symbol;

    // Mapping from token ID to owner address
    mapping(uint256 => address) private _owners;

    // Mapping owner address to token count
    mapping(address => uint256) private _balances;

    // Mapping from token ID to approved address
    mapping(uint256 => address) private _tokenApprovals;

    // Mapping from owner to operator approvals
    mapping(address => mapping(address => bool)) private _operatorApprovals;

    /**
     * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.
     */
    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId)
        public
        view
        virtual
        override(ERC165)
        returns (bool)
    {
        return
            interfaceId == type(IERC721).interfaceId ||
            interfaceId == type(IERC721Metadata).interfaceId ||
            super.supportsInterface(interfaceId);
    }

    /**
     * @dev See {IERC721-balanceOf}.
     */
    function balanceOf(address owner)
        public
        view
        virtual
        override
        returns (uint256)
    {
        require(
            owner != address(0),
            "ERC721: address zero is not a valid owner"
        );
        return _balances[owner];
    }

    /**
     * @dev See {IERC721-ownerOf}.
     */
    function ownerOf(uint256 tokenId)
        public
        view
        virtual
        override
        returns (address)
    {
        address owner = _owners[tokenId];
        require(
            owner != address(0),
            "ERC721: owner query for nonexistent token"
        );
        return owner;
    }

    /**
     * @dev See {IERC721Metadata-name}.
     */
    function name() public view virtual override returns (string memory) {
        return _name;
    }

    /**
     * @dev See {IERC721Metadata-symbol}.
     */
    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }

    /**
     * @dev See {IERC721Metadata-tokenURI}.
     */
    function tokenURI(uint256 tokenId)
        public
        view
        virtual
        override
        returns (string memory)
    {
        require(
            _exists(tokenId),
            "ERC721Metadata: URI query for nonexistent token"
        );

        string memory baseURI = _baseURI();
        return
            bytes(baseURI).length > 0
                ? string(abi.encodePacked(baseURI, tokenId.toString()))
                : "";
    }

    /**
     * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
     * token will be the concatenation of the `baseURI` and the `tokenId`. Empty
     * by default, can be overridden in child contracts.
     */
    function _baseURI() internal view virtual returns (string memory) {
        return "";
    }

    /**
     * @dev See {IERC721-approve}.
     */
    function approve(address to, uint256 tokenId) public virtual override {
        address owner = ERC721.ownerOf(tokenId);
        require(to != owner, "ERC721: approval to current owner");

        require(
            _msgSender() == owner || isApprovedForAll(owner, _msgSender()),
            "ERC721: approve caller is not owner nor approved for all"
        );

        _approve(to, tokenId);
    }

    /**
     * @dev See {IERC721-getApproved}.
     */
    function getApproved(uint256 tokenId)
        public
        view
        virtual
        override
        returns (address)
    {
        require(
            _exists(tokenId),
            "ERC721: approved query for nonexistent token"
        );

        return _tokenApprovals[tokenId];
    }

    /**
     * @dev See {IERC721-setApprovalForAll}.
     */
    function setApprovalForAll(address operator, bool approved)
        public
        virtual
        override
    {
        _setApprovalForAll(_msgSender(), operator, approved);
    }

    /**
     * @dev See {IERC721-isApprovedForAll}.
     */
    function isApprovedForAll(address owner, address operator)
        public
        view
        virtual
        override
        returns (bool)
    {
        return _operatorApprovals[owner][operator];
    }

    /**
     * @dev See {IERC721-transferFrom}.
     */
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public virtual override {
        //solhint-disable-next-line max-line-length
        require(
            _isApprovedOrOwner(_msgSender(), tokenId),
            "ERC721: transfer caller is not owner nor approved"
        );

        _transfer(from, to, tokenId);
    }

    /**
     * @dev See {IERC721-safeTransferFrom}.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public virtual override {
        safeTransferFrom(from, to, tokenId, "");
    }

    /**
     * @dev See {IERC721-safeTransferFrom}.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) public virtual override {
        require(
            _isApprovedOrOwner(_msgSender(), tokenId),
            "ERC721: transfer caller is not owner nor approved"
        );
        _safeTransfer(from, to, tokenId, _data);
    }

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
     *
     * `_data` is additional data, it has no specified format and it is sent in call to `to`.
     *
     * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.
     * implement alternative mechanisms to perform token transfer, such as signature-based.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function _safeTransfer(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) internal virtual {
        _transfer(from, to, tokenId);
        require(
            _checkOnERC721Received(from, to, tokenId, _data),
            "ERC721: transfer to non ERC721Receiver implementer"
        );
    }

    /**
     * @dev Returns whether `tokenId` exists.
     *
     * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
     *
     * Tokens start existing when they are minted (`_mint`),
     * and stop existing when they are burned (`_burn`).
     */
    function _exists(uint256 tokenId) internal view virtual returns (bool) {
        return _owners[tokenId] != address(0);
    }

    /**
     * @dev Returns whether `spender` is allowed to manage `tokenId`.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function _isApprovedOrOwner(address spender, uint256 tokenId)
        internal
        view
        virtual
        returns (bool)
    {
        require(
            _exists(tokenId),
            "ERC721: operator query for nonexistent token"
        );
        address owner = ERC721.ownerOf(tokenId);
        return (spender == owner ||
            isApprovedForAll(owner, spender) ||
            getApproved(tokenId) == spender);
    }

    /**
     * @dev Safely mints `tokenId` and transfers it to `to`.
     *
     * Requirements:
     *
     * - `tokenId` must not exist.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function _safeMint(address to, uint256 tokenId) internal virtual {
        _safeMint(to, tokenId, "");
    }

    /**
     * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is
     * forwarded in {IERC721Receiver-onERC721Received} to contract recipients.
     */
    function _safeMint(
        address to,
        uint256 tokenId,
        bytes memory _data
    ) internal virtual {
        _mint(to, tokenId);
        require(
            _checkOnERC721Received(address(0), to, tokenId, _data),
            "ERC721: transfer to non ERC721Receiver implementer"
        );
    }

    /**
     * @dev Mints `tokenId` and transfers it to `to`.
     *
     * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible
     *
     * Requirements:
     *
     * - `tokenId` must not exist.
     * - `to` cannot be the zero address.
     *
     * Emits a {Transfer} event.
     */
    function _mint(address to, uint256 tokenId) internal virtual {
        require(to != address(0), "ERC721: mint to the zero address");
        require(!_exists(tokenId), "ERC721: token already minted");

        _beforeTokenTransfer(address(0), to, tokenId);

        _balances[to] += 1;
        _owners[tokenId] = to;

        emit Transfer(address(0), to, tokenId);

        _afterTokenTransfer(address(0), to, tokenId);
    }

    /**
     * @dev Destroys `tokenId`.
     * The approval is cleared when the token is burned.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     *
     * Emits a {Transfer} event.
     */
    function _burn(uint256 tokenId) internal virtual {
        address owner = ERC721.ownerOf(tokenId);

        _beforeTokenTransfer(owner, address(0), tokenId);

        // Clear approvals
        _approve(address(0), tokenId);

        _balances[owner] -= 1;
        delete _owners[tokenId];

        emit Transfer(owner, address(0), tokenId);

        _afterTokenTransfer(owner, address(0), tokenId);
    }

    /**
     * @dev Transfers `tokenId` from `from` to `to`.
     *  As opposed to {transferFrom}, this imposes no restrictions on msg.sender.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     *
     * Emits a {Transfer} event.
     */
    function _transfer(
        address from,
        address to,
        uint256 tokenId
    ) internal virtual {
        require(
            ERC721.ownerOf(tokenId) == from,
            "ERC721: transfer from incorrect owner"
        );
        require(to != address(0), "ERC721: transfer to the zero address");

        _beforeTokenTransfer(from, to, tokenId);

        // Clear approvals from the previous owner
        _approve(address(0), tokenId);

        _balances[from] -= 1;
        _balances[to] += 1;
        _owners[tokenId] = to;

        emit Transfer(from, to, tokenId);

        _afterTokenTransfer(from, to, tokenId);
    }

    /**
     * @dev Approve `to` to operate on `tokenId`
     *
     * Emits a {Approval} event.
     */
    function _approve(address to, uint256 tokenId) internal virtual {
        _tokenApprovals[tokenId] = to;
        emit Approval(ERC721.ownerOf(tokenId), to, tokenId);
    }

    /**
     * @dev Approve `operator` to operate on all of `owner` tokens
     *
     * Emits a {ApprovalForAll} event.
     */
    function _setApprovalForAll(
        address owner,
        address operator,
        bool approved
    ) internal virtual {
        require(owner != operator, "ERC721: approve to caller");
        _operatorApprovals[owner][operator] = approved;
        emit ApprovalForAll(owner, operator, approved);
    }

    /**
     * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
     * The call is not executed if the target address is not a contract.
     *
     * @param from address representing the previous owner of the given token ID
     * @param to target address that will receive the tokens
     * @param tokenId uint256 ID of the token to be transferred
     * @param _data bytes optional data to send along with the call
     * @return bool whether the call correctly returned the expected magic value
     */
    function _checkOnERC721Received(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) private returns (bool) {
        if (to.isContract()) {
            try
                IERC721Receiver(to).onERC721Received(
                    _msgSender(),
                    from,
                    tokenId,
                    _data
                )
            returns (bytes4 retval) {
                return retval == IERC721Receiver.onERC721Received.selector;
            } catch (bytes memory reason) {
                if (reason.length == 0) {
                    revert(
                        "ERC721: transfer to non ERC721Receiver implementer"
                    );
                } else {
                    assembly {
                        revert(add(32, reason), mload(reason))
                    }
                }
            }
        } else {
            return true;
        }
    }

    /**
     * @dev Hook that is called before any token transfer. This includes minting
     * and burning.
     *
     * Calling conditions:
     *
     * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
     * transferred to `to`.
     * - When `from` is zero, `tokenId` will be minted for `to`.
     * - When `to` is zero, ``from``'s `tokenId` will be burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(
        address from,
        address to,
        uint256 tokenId
    ) internal virtual {}

    /**
     * @dev Hook that is called after any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _afterTokenTransfer(
        address from,
        address to,
        uint256 tokenId
    ) internal virtual {}
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/ERC721Enumerable.sol)

pragma solidity ^0.8.0;

import "./ERC721.sol";
import "./IERC721Enumerable.sol";

/**
 * @dev This implements an optional extension of {ERC721} defined in the EIP that adds
 * enumerability of all the token ids in the contract as well as all token ids owned by each
 * account.
 */
abstract contract ERC721Enumerable is ERC721, IERC721Enumerable {
    // Mapping from owner to list of owned token IDs
    mapping(address => mapping(uint256 => uint256)) private _ownedTokens;

    // Mapping from token ID to index of the owner tokens list
    mapping(uint256 => uint256) private _ownedTokensIndex;

    // Array with all token ids, used for enumeration
    uint256[] private _allTokens;

    // Mapping from token id to position in the allTokens array
    mapping(uint256 => uint256) private _allTokensIndex;

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId)
        public
        view
        virtual
        override(ERC721)
        returns (bool)
    {
        return
            interfaceId == type(IERC721Enumerable).interfaceId ||
            super.supportsInterface(interfaceId);
    }

    /**
     * @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
     */
    function tokenOfOwnerByIndex(address owner, uint256 index)
        public
        view
        virtual
        override
        returns (uint256)
    {
        require(
            index < ERC721.balanceOf(owner),
            "ERC721Enumerable: owner index out of bounds"
        );
        return _ownedTokens[owner][index];
    }

    /**
     * @dev See {IERC721Enumerable-totalSupply}.
     */
    function totalSupply() public view virtual override returns (uint256) {
        return _allTokens.length;
    }

    /**
     * @dev See {IERC721Enumerable-tokenByIndex}.
     */
    function tokenByIndex(uint256 index)
        public
        view
        virtual
        override
        returns (uint256)
    {
        require(
            index < ERC721Enumerable.totalSupply(),
            "ERC721Enumerable: global index out of bounds"
        );
        return _allTokens[index];
    }

    /**
     * @dev Hook that is called before any token transfer. This includes minting
     * and burning.
     *
     * Calling conditions:
     *
     * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
     * transferred to `to`.
     * - When `from` is zero, `tokenId` will be minted for `to`.
     * - When `to` is zero, ``from``'s `tokenId` will be burned.
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(
        address from,
        address to,
        uint256 tokenId
    ) internal virtual override {
        super._beforeTokenTransfer(from, to, tokenId);

        if (from == address(0)) {
            _addTokenToAllTokensEnumeration(tokenId);
        } else if (from != to) {
            _removeTokenFromOwnerEnumeration(from, tokenId);
        }
        if (to == address(0)) {
            _removeTokenFromAllTokensEnumeration(tokenId);
        } else if (to != from) {
            _addTokenToOwnerEnumeration(to, tokenId);
        }
    }

    /**
     * @dev Private function to add a token to this extension's ownership-tracking data structures.
     * @param to address representing the new owner of the given token ID
     * @param tokenId uint256 ID of the token to be added to the tokens list of the given address
     */
    function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private {
        uint256 length = ERC721.balanceOf(to);
        _ownedTokens[to][length] = tokenId;
        _ownedTokensIndex[tokenId] = length;
    }

    /**
     * @dev Private function to add a token to this extension's token tracking data structures.
     * @param tokenId uint256 ID of the token to be added to the tokens list
     */
    function _addTokenToAllTokensEnumeration(uint256 tokenId) private {
        _allTokensIndex[tokenId] = _allTokens.length;
        _allTokens.push(tokenId);
    }

    /**
     * @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that
     * while the token is not assigned a new owner, the `_ownedTokensIndex` mapping is _not_ updated: this allows for
     * gas optimizations e.g. when performing a transfer operation (avoiding double writes).
     * This has O(1) time complexity, but alters the order of the _ownedTokens array.
     * @param from address representing the previous owner of the given token ID
     * @param tokenId uint256 ID of the token to be removed from the tokens list of the given address
     */
    function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId)
        private
    {
        // To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and
        // then delete the last slot (swap and pop).

        uint256 lastTokenIndex = ERC721.balanceOf(from) - 1;
        uint256 tokenIndex = _ownedTokensIndex[tokenId];

        // When the token to delete is the last token, the swap operation is unnecessary
        if (tokenIndex != lastTokenIndex) {
            uint256 lastTokenId = _ownedTokens[from][lastTokenIndex];

            _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token
            _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index
        }

        // This also deletes the contents at the last position of the array
        delete _ownedTokensIndex[tokenId];
        delete _ownedTokens[from][lastTokenIndex];
    }

    /**
     * @dev Private function to remove a token from this extension's token tracking data structures.
     * This has O(1) time complexity, but alters the order of the _allTokens array.
     * @param tokenId uint256 ID of the token to be removed from the tokens list
     */
    function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private {
        // To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and
        // then delete the last slot (swap and pop).

        uint256 lastTokenIndex = _allTokens.length - 1;
        uint256 tokenIndex = _allTokensIndex[tokenId];

        // When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so
        // rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding
        // an 'if' statement (like in _removeTokenFromOwnerEnumeration)
        uint256 lastTokenId = _allTokens[lastTokenIndex];

        _allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token
        _allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index

        // This also deletes the contents at the last position of the array
        delete _allTokensIndex[tokenId];
        _allTokens.pop();
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @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
pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

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

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

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

    /**
     * @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
    );
}

// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.8.0;

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

interface IERC20Detailed is IERC20 {
    function name() external view returns (string memory);

    function symbol() external view returns (string memory);

    function decimals() external view returns (uint8);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721.sol)

pragma solidity ^0.8.0;

import "./IERC165.sol";

/**
 * @dev Required interface of an ERC721 compliant contract.
 */
interface IERC721 {
    /**
     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
     */
    event Transfer(
        address indexed from,
        address indexed to,
        uint256 indexed tokenId
    );

    /**
     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
     */
    event Approval(
        address indexed owner,
        address indexed approved,
        uint256 indexed tokenId
    );

    /**
     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
     */
    event ApprovalForAll(
        address indexed owner,
        address indexed operator,
        bool approved
    );

    /**
     * @dev Returns the number of tokens in ``owner``'s account.
     */
    function balanceOf(address owner) external view returns (uint256 balance);

    /**
     * @dev Returns the owner of the `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function ownerOf(uint256 tokenId) external view returns (address owner);

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes calldata data
    ) external;

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

    /**
     * @dev Transfers `tokenId` token from `from` to `to`.
     *
     * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

    /**
     * @dev Gives permission to `to` to transfer `tokenId` token to another account.
     * The approval is cleared when the token is transferred.
     *
     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.
     *
     * Requirements:
     *
     * - The caller must own the token or be an approved operator.
     * - `tokenId` must exist.
     *
     * Emits an {Approval} event.
     */
    function approve(address to, uint256 tokenId) external;

    /**
     * @dev Approve or remove `operator` as an operator for the caller.
     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
     *
     * Requirements:
     *
     * - The `operator` cannot be the caller.
     *
     * Emits an {ApprovalForAll} event.
     */
    function setApprovalForAll(address operator, bool _approved) external;

    /**
     * @dev Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId)
        external
        view
        returns (address operator);

    /**
     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
     *
     * See {setApprovalForAll}
     */
    function isApprovedForAll(address owner, address operator)
        external
        view
        returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC721/extensions/IERC721Enumerable.sol)

pragma solidity ^0.8.0;

import "./IERC721.sol";

/**
 * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
interface IERC721Enumerable is IERC721 {
    /**
     * @dev Returns the total amount of tokens stored by the contract.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns a token ID owned by `owner` at a given `index` of its token list.
     * Use along with {balanceOf} to enumerate all of ``owner``'s tokens.
     */
    function tokenOfOwnerByIndex(address owner, uint256 index)
        external
        view
        returns (uint256);

    /**
     * @dev Returns a token ID at a given `index` of all the tokens stored by the contract.
     * Use along with {totalSupply} to enumerate all tokens.
     */
    function tokenByIndex(uint256 index) external view returns (uint256);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)

pragma solidity ^0.8.0;

import "./IERC721.sol";

/**
 * @title ERC-721 Non-Fungible Token Standard, optional metadata extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
interface IERC721Metadata is IERC721 {
    /**
     * @dev Returns the token collection name.
     */
    function name() external view returns (string memory);

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

    /**
     * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
     */
    function tokenURI(uint256 tokenId) external view returns (string memory);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721Receiver.sol)

pragma solidity ^0.8.0;

/**
 * @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

pragma solidity ^0.8.0;

import "./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.
 *
 * By default, the owner account will be the one that deploys the contract. 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.
 */
contract Ownable is Context {
    address private _owner;

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

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        address msgSender = _msgSender();
        _owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }

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

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(_owner == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = 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 {
        require(
            newOwner != address(0),
            "Ownable: new owner is the zero address"
        );
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/math/SafeCast.sol)
pragma solidity ^0.8.0;

/**
 * @dev Wrappers over Solidity's uintXX/intXX casting operators with added overflow
 * checks.
 *
 * Downcasting from uint256/int256 in Solidity does not revert on overflow. This can
 * easily result in undesired exploitation or bugs, since developers usually
 * assume that overflows raise errors. `SafeCast` restores this intuition by
 * reverting the transaction when such an operation overflows.
 *
 * Using this library instead of the unchecked operations eliminates an entire
 * class of bugs, so it's recommended to use it always.
 *
 * Can be combined with {SafeMath} and {SignedSafeMath} to extend it to smaller types, by performing
 * all math on `uint256` and `int256` and then downcasting.
 */
library SafeCast {
    /**
     * @dev Returns the downcasted uint224 from uint256, reverting on
     * overflow (when the input is greater than largest uint224).
     *
     * Counterpart to Solidity's `uint224` operator.
     *
     * Requirements:
     *
     * - input must fit into 224 bits
     */
    function toUint224(uint256 value) internal pure returns (uint224) {
        require(
            value <= type(uint224).max,
            "SafeCast: value doesn't fit in 224 bits"
        );
        return uint224(value);
    }

    /**
     * @dev Returns the downcasted uint184 from uint256, reverting on
     * overflow (when the input is greater than largest uint184).
     *
     * Counterpart to Solidity's `uint184` operator.
     *
     * Requirements:
     *
     * - input must fit into 184 bits
     *
     * _Available since v4.7._
     */
    function toUint184(uint256 value) internal pure returns (uint184) {
        require(value <= type(uint184).max, "SafeCast: value doesn't fit in 184 bits");
        return uint184(value);
    }

    /**
     * @dev Returns the downcasted uint128 from uint256, reverting on
     * overflow (when the input is greater than largest uint128).
     *
     * Counterpart to Solidity's `uint128` operator.
     *
     * Requirements:
     *
     * - input must fit into 128 bits
     */
    function toUint128(uint256 value) internal pure returns (uint128) {
        require(
            value <= type(uint128).max,
            "SafeCast: value doesn't fit in 128 bits"
        );
        return uint128(value);
    }

    /**
     * @dev Returns the downcasted uint96 from uint256, reverting on
     * overflow (when the input is greater than largest uint96).
     *
     * Counterpart to Solidity's `uint96` operator.
     *
     * Requirements:
     *
     * - input must fit into 96 bits
     */
    function toUint96(uint256 value) internal pure returns (uint96) {
        require(
            value <= type(uint96).max,
            "SafeCast: value doesn't fit in 96 bits"
        );
        return uint96(value);
    }

    /**
     * @dev Returns the downcasted uint64 from uint256, reverting on
     * overflow (when the input is greater than largest uint64).
     *
     * Counterpart to Solidity's `uint64` operator.
     *
     * Requirements:
     *
     * - input must fit into 64 bits
     */
    function toUint64(uint256 value) internal pure returns (uint64) {
        require(
            value <= type(uint64).max,
            "SafeCast: value doesn't fit in 64 bits"
        );
        return uint64(value);
    }

    /**
     * @dev Returns the downcasted uint48 from uint256, reverting on
     * overflow (when the input is greater than largest uint48).
     *
     * Counterpart to Solidity's `uint48` operator.
     *
     * Requirements:
     *
     * - input must fit into 48 bits
     *
     * _Available since v4.7._
     */
    function toUint48(uint256 value) internal pure returns (uint48) {
        require(value <= type(uint48).max, "SafeCast: value doesn't fit in 48 bits");
        return uint48(value);
    }

    /**
     * @dev Returns the downcasted uint32 from uint256, reverting on
     * overflow (when the input is greater than largest uint32).
     *
     * Counterpart to Solidity's `uint32` operator.
     *
     * Requirements:
     *
     * - input must fit into 32 bits
     */
    function toUint32(uint256 value) internal pure returns (uint32) {
        require(
            value <= type(uint32).max,
            "SafeCast: value doesn't fit in 32 bits"
        );
        return uint32(value);
    }

    /**
     * @dev Returns the downcasted uint16 from uint256, reverting on
     * overflow (when the input is greater than largest uint16).
     *
     * Counterpart to Solidity's `uint16` operator.
     *
     * Requirements:
     *
     * - input must fit into 16 bits
     */
    function toUint16(uint256 value) internal pure returns (uint16) {
        require(
            value <= type(uint16).max,
            "SafeCast: value doesn't fit in 16 bits"
        );
        return uint16(value);
    }

    /**
     * @dev Returns the downcasted uint8 from uint256, reverting on
     * overflow (when the input is greater than largest uint8).
     *
     * Counterpart to Solidity's `uint8` operator.
     *
     * Requirements:
     *
     * - input must fit into 8 bits.
     */
    function toUint8(uint256 value) internal pure returns (uint8) {
        require(
            value <= type(uint8).max,
            "SafeCast: value doesn't fit in 8 bits"
        );
        return uint8(value);
    }

    /**
     * @dev Converts a signed int256 into an unsigned uint256.
     *
     * Requirements:
     *
     * - input must be greater than or equal to 0.
     */
    function toUint256(int256 value) internal pure returns (uint256) {
        require(value >= 0, "SafeCast: value must be positive");
        return uint256(value);
    }

    /**
     * @dev Returns the downcasted int128 from int256, reverting on
     * overflow (when the input is less than smallest int128 or
     * greater than largest int128).
     *
     * Counterpart to Solidity's `int128` operator.
     *
     * Requirements:
     *
     * - input must fit into 128 bits
     *
     * _Available since v3.1._
     */
    function toInt128(int256 value) internal pure returns (int128) {
        require(
            value >= type(int128).min && value <= type(int128).max,
            "SafeCast: value doesn't fit in 128 bits"
        );
        return int128(value);
    }

    /**
     * @dev Returns the downcasted int64 from int256, reverting on
     * overflow (when the input is less than smallest int64 or
     * greater than largest int64).
     *
     * Counterpart to Solidity's `int64` operator.
     *
     * Requirements:
     *
     * - input must fit into 64 bits
     *
     * _Available since v3.1._
     */
    function toInt64(int256 value) internal pure returns (int64) {
        require(
            value >= type(int64).min && value <= type(int64).max,
            "SafeCast: value doesn't fit in 64 bits"
        );
        return int64(value);
    }

    /**
     * @dev Returns the downcasted int32 from int256, reverting on
     * overflow (when the input is less than smallest int32 or
     * greater than largest int32).
     *
     * Counterpart to Solidity's `int32` operator.
     *
     * Requirements:
     *
     * - input must fit into 32 bits
     *
     * _Available since v3.1._
     */
    function toInt32(int256 value) internal pure returns (int32) {
        require(
            value >= type(int32).min && value <= type(int32).max,
            "SafeCast: value doesn't fit in 32 bits"
        );
        return int32(value);
    }

    /**
     * @dev Returns the downcasted int16 from int256, reverting on
     * overflow (when the input is less than smallest int16 or
     * greater than largest int16).
     *
     * Counterpart to Solidity's `int16` operator.
     *
     * Requirements:
     *
     * - input must fit into 16 bits
     *
     * _Available since v3.1._
     */
    function toInt16(int256 value) internal pure returns (int16) {
        require(
            value >= type(int16).min && value <= type(int16).max,
            "SafeCast: value doesn't fit in 16 bits"
        );
        return int16(value);
    }

    /**
     * @dev Returns the downcasted int8 from int256, reverting on
     * overflow (when the input is less than smallest int8 or
     * greater than largest int8).
     *
     * Counterpart to Solidity's `int8` operator.
     *
     * Requirements:
     *
     * - input must fit into 8 bits.
     *
     * _Available since v3.1._
     */
    function toInt8(int256 value) internal pure returns (int8) {
        require(
            value >= type(int8).min && value <= type(int8).max,
            "SafeCast: value doesn't fit in 8 bits"
        );
        return int8(value);
    }

    /**
     * @dev Converts an unsigned uint256 into a signed int256.
     *
     * Requirements:
     *
     * - input must be less than or equal to maxInt256.
     */
    function toInt256(uint256 value) internal pure returns (int256) {
        // Note: Unsafe cast below is okay because `type(int256).max` is guaranteed to be positive
        require(
            value <= uint256(type(int256).max),
            "SafeCast: value doesn't fit in an int256"
        );
        return int256(value);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "./IERC20.sol";
import "./draft-IERC20Permit.sol";
import "./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;

    function safeTransfer(
        IERC20 token,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    function safeTransferFrom(
        IERC20 token,
        address from,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }

    /**
     * @dev Deprecated. This function has issues similar to the ones found in
     * {IERC20-approve}, and its usage is discouraged.
     *
     * Whenever possible, use {safeIncreaseAllowance} and
     * {safeDecreaseAllowance} instead.
     */
    function safeApprove(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        require(
            (value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

    function safeIncreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        uint256 newAllowance = token.allowance(address(this), spender) + value;
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    function safeDecreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        unchecked {
            uint256 oldAllowance = token.allowance(address(this), spender);
            require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
            uint256 newAllowance = oldAllowance - value;
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
        }
    }

    function safePermit(
        IERC20Permit token,
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal {
        uint256 nonceBefore = token.nonces(owner);
        token.permit(owner, spender, value, deadline, v, r, s);
        uint256 nonceAfter = token.nonces(owner);
        require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed");
    }

    /**
     * @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, "SafeERC20: low-level call failed");
        if (returndata.length > 0) {
            // Return data is optional
            require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
        }
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev String operations.
 */
library Strings {
    bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";

    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory) {
        // Inspired by OraclizeAPI's implementation - MIT licence
        // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol

        if (value == 0) {
            return "0";
        }
        uint256 temp = value;
        uint256 digits;
        while (temp != 0) {
            digits++;
            temp /= 10;
        }
        bytes memory buffer = new bytes(digits);
        while (value != 0) {
            digits -= 1;
            buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
            value /= 10;
        }
        return string(buffer);
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        if (value == 0) {
            return "0x00";
        }
        uint256 temp = value;
        uint256 length = 0;
        while (temp != 0) {
            length++;
            temp >>= 8;
        }
        return toHexString(value, length);
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
     */
    function toHexString(uint256 value, uint256 length)
        internal
        pure
        returns (string memory)
    {
        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_SYMBOLS[value & 0xf];
            value >>= 4;
        }
        require(value == 0, "Strings: hex length insufficient");
        return string(buffer);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/draft-IERC20Permit.sol)

pragma solidity ^0.8.0;

/**
 * @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.
 */
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].
     */
    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
pragma solidity ^0.8.0;

// prettier-ignore
enum OrderType {
    // 0: no partial fills, anyone can execute
    FULL_OPEN,

    // 1: partial fills supported, anyone can execute
    PARTIAL_OPEN,

    // 2: no partial fills, only offerer or zone can execute
    FULL_RESTRICTED,

    // 3: partial fills supported, only offerer or zone can execute
    PARTIAL_RESTRICTED
}

// prettier-ignore
enum BasicOrderType {
    // 0: no partial fills, anyone can execute
    ETH_TO_ERC721_FULL_OPEN,

    // 1: partial fills supported, anyone can execute
    ETH_TO_ERC721_PARTIAL_OPEN,

    // 2: no partial fills, only offerer or zone can execute
    ETH_TO_ERC721_FULL_RESTRICTED,

    // 3: partial fills supported, only offerer or zone can execute
    ETH_TO_ERC721_PARTIAL_RESTRICTED,

    // 4: no partial fills, anyone can execute
    ETH_TO_ERC1155_FULL_OPEN,

    // 5: partial fills supported, anyone can execute
    ETH_TO_ERC1155_PARTIAL_OPEN,

    // 6: no partial fills, only offerer or zone can execute
    ETH_TO_ERC1155_FULL_RESTRICTED,

    // 7: partial fills supported, only offerer or zone can execute
    ETH_TO_ERC1155_PARTIAL_RESTRICTED,

    // 8: no partial fills, anyone can execute
    ERC20_TO_ERC721_FULL_OPEN,

    // 9: partial fills supported, anyone can execute
    ERC20_TO_ERC721_PARTIAL_OPEN,

    // 10: no partial fills, only offerer or zone can execute
    ERC20_TO_ERC721_FULL_RESTRICTED,

    // 11: partial fills supported, only offerer or zone can execute
    ERC20_TO_ERC721_PARTIAL_RESTRICTED,

    // 12: no partial fills, anyone can execute
    ERC20_TO_ERC1155_FULL_OPEN,

    // 13: partial fills supported, anyone can execute
    ERC20_TO_ERC1155_PARTIAL_OPEN,

    // 14: no partial fills, only offerer or zone can execute
    ERC20_TO_ERC1155_FULL_RESTRICTED,

    // 15: partial fills supported, only offerer or zone can execute
    ERC20_TO_ERC1155_PARTIAL_RESTRICTED,

    // 16: no partial fills, anyone can execute
    ERC721_TO_ERC20_FULL_OPEN,

    // 17: partial fills supported, anyone can execute
    ERC721_TO_ERC20_PARTIAL_OPEN,

    // 18: no partial fills, only offerer or zone can execute
    ERC721_TO_ERC20_FULL_RESTRICTED,

    // 19: partial fills supported, only offerer or zone can execute
    ERC721_TO_ERC20_PARTIAL_RESTRICTED,

    // 20: no partial fills, anyone can execute
    ERC1155_TO_ERC20_FULL_OPEN,

    // 21: partial fills supported, anyone can execute
    ERC1155_TO_ERC20_PARTIAL_OPEN,

    // 22: no partial fills, only offerer or zone can execute
    ERC1155_TO_ERC20_FULL_RESTRICTED,

    // 23: partial fills supported, only offerer or zone can execute
    ERC1155_TO_ERC20_PARTIAL_RESTRICTED
}

// prettier-ignore
enum BasicOrderRouteType {
    // 0: provide Ether (or other native token) to receive offered ERC721 item.
    ETH_TO_ERC721,

    // 1: provide Ether (or other native token) to receive offered ERC1155 item.
    ETH_TO_ERC1155,

    // 2: provide ERC20 item to receive offered ERC721 item.
    ERC20_TO_ERC721,

    // 3: provide ERC20 item to receive offered ERC1155 item.
    ERC20_TO_ERC1155,

    // 4: provide ERC721 item to receive offered ERC20 item.
    ERC721_TO_ERC20,

    // 5: provide ERC1155 item to receive offered ERC20 item.
    ERC1155_TO_ERC20
}

// prettier-ignore
enum ItemType {
    // 0: ETH on mainnet, MATIC on polygon, etc.
    NATIVE,

    // 1: ERC20 items (ERC777 and ERC20 analogues could also technically work)
    ERC20,

    // 2: ERC721 items
    ERC721,

    // 3: ERC1155 items
    ERC1155,

    // 4: ERC721 items where a number of tokenIds are supported
    ERC721_WITH_CRITERIA,

    // 5: ERC1155 items where a number of ids are supported
    ERC1155_WITH_CRITERIA
}

// prettier-ignore
enum Side {
    // 0: Items that can be spent
    OFFER,

    // 1: Items that must be received
    CONSIDERATION
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import {
    OrderType,
    BasicOrderType,
    ItemType,
    Side
} from "./ConsiderationEnums.sol";

/**
 * @dev An order contains eleven components: an offerer, a zone (or account that
 *      can cancel the order or restrict who can fulfill the order depending on
 *      the type), the order type (specifying partial fill support as well as
 *      restricted order status), the start and end time, a hash that will be
 *      provided to the zone when validating restricted orders, a salt, a key
 *      corresponding to a given conduit, a counter, and an arbitrary number of
 *      offer items that can be spent along with consideration items that must
 *      be received by their respective recipient.
 */
struct OrderComponents {
    address offerer;
    address zone;
    OfferItem[] offer;
    ConsiderationItem[] consideration;
    OrderType orderType;
    uint256 startTime;
    uint256 endTime;
    bytes32 zoneHash;
    uint256 salt;
    bytes32 conduitKey;
    uint256 counter;
}

/**
 * @dev An offer item has five components: an item type (ETH or other native
 *      tokens, ERC20, ERC721, and ERC1155, as well as criteria-based ERC721 and
 *      ERC1155), a token address, a dual-purpose "identifierOrCriteria"
 *      component that will either represent a tokenId or a merkle root
 *      depending on the item type, and a start and end amount that support
 *      increasing or decreasing amounts over the duration of the respective
 *      order.
 */
struct OfferItem {
    ItemType itemType;
    address token;
    uint256 identifierOrCriteria;
    uint256 startAmount;
    uint256 endAmount;
}

/**
 * @dev A consideration item has the same five components as an offer item and
 *      an additional sixth component designating the required recipient of the
 *      item.
 */
struct ConsiderationItem {
    ItemType itemType;
    address token;
    uint256 identifierOrCriteria;
    uint256 startAmount;
    uint256 endAmount;
    address payable recipient;
}

/**
 * @dev A spent item is translated from a utilized offer item and has four
 *      components: an item type (ETH or other native tokens, ERC20, ERC721, and
 *      ERC1155), a token address, a tokenId, and an amount.
 */
struct SpentItem {
    ItemType itemType;
    address token;
    uint256 identifier;
    uint256 amount;
}

/**
 * @dev A received item is translated from a utilized consideration item and has
 *      the same four components as a spent item, as well as an additional fifth
 *      component designating the required recipient of the item.
 */
struct ReceivedItem {
    ItemType itemType;
    address token;
    uint256 identifier;
    uint256 amount;
    address payable recipient;
}

/**
 * @dev For basic orders involving ETH / native / ERC20 <=> ERC721 / ERC1155
 *      matching, a group of six functions may be called that only requires a
 *      subset of the usual order arguments. Note the use of a "basicOrderType"
 *      enum; this represents both the usual order type as well as the "route"
 *      of the basic order (a simple derivation function for the basic order
 *      type is `basicOrderType = orderType + (4 * basicOrderRoute)`.)
 */
struct BasicOrderParameters {
    // calldata offset
    address considerationToken; // 0x24
    uint256 considerationIdentifier; // 0x44
    uint256 considerationAmount; // 0x64
    address payable offerer; // 0x84
    address zone; // 0xa4
    address offerToken; // 0xc4
    uint256 offerIdentifier; // 0xe4
    uint256 offerAmount; // 0x104
    BasicOrderType basicOrderType; // 0x124
    uint256 startTime; // 0x144
    uint256 endTime; // 0x164
    bytes32 zoneHash; // 0x184
    uint256 salt; // 0x1a4
    bytes32 offererConduitKey; // 0x1c4
    bytes32 fulfillerConduitKey; // 0x1e4
    uint256 totalOriginalAdditionalRecipients; // 0x204
    AdditionalRecipient[] additionalRecipients; // 0x224
    bytes signature; // 0x244
    // Total length, excluding dynamic array data: 0x264 (580)
}

/**
 * @dev Basic orders can supply any number of additional recipients, with the
 *      implied assumption that they are supplied from the offered ETH (or other
 *      native token) or ERC20 token for the order.
 */
struct AdditionalRecipient {
    uint256 amount;
    address payable recipient;
}

/**
 * @dev The full set of order components, with the exception of the counter,
 *      must be supplied when fulfilling more sophisticated orders or groups of
 *      orders. The total number of original consideration items must also be
 *      supplied, as the caller may specify additional consideration items.
 */
struct OrderParameters {
    address offerer; // 0x00
    address zone; // 0x20
    OfferItem[] offer; // 0x40
    ConsiderationItem[] consideration; // 0x60
    OrderType orderType; // 0x80
    uint256 startTime; // 0xa0
    uint256 endTime; // 0xc0
    bytes32 zoneHash; // 0xe0
    uint256 salt; // 0x100
    bytes32 conduitKey; // 0x120
    uint256 totalOriginalConsiderationItems; // 0x140
    // offer.length                          // 0x160
}

/**
 * @dev Orders require a signature in addition to the other order parameters.
 */
struct Order {
    OrderParameters parameters;
    bytes signature;
}

/**
 * @dev Advanced orders include a numerator (i.e. a fraction to attempt to fill)
 *      and a denominator (the total size of the order) in addition to the
 *      signature and other order parameters. It also supports an optional field
 *      for supplying extra data; this data will be included in a staticcall to
 *      `isValidOrderIncludingExtraData` on the zone for the order if the order
 *      type is restricted and the offerer or zone are not the caller.
 */
struct AdvancedOrder {
    OrderParameters parameters;
    uint120 numerator;
    uint120 denominator;
    bytes signature;
    bytes extraData;
}

/**
 * @dev Orders can be validated (either explicitly via `validate`, or as a
 *      consequence of a full or partial fill), specifically cancelled (they can
 *      also be cancelled in bulk via incrementing a per-zone counter), and
 *      partially or fully filled (with the fraction filled represented by a
 *      numerator and denominator).
 */
struct OrderStatus {
    bool isValidated;
    bool isCancelled;
    uint120 numerator;
    uint120 denominator;
}

/**
 * @dev A criteria resolver specifies an order, side (offer vs. consideration),
 *      and item index. It then provides a chosen identifier (i.e. tokenId)
 *      alongside a merkle proof demonstrating the identifier meets the required
 *      criteria.
 */
struct CriteriaResolver {
    uint256 orderIndex;
    Side side;
    uint256 index;
    uint256 identifier;
    bytes32[] criteriaProof;
}

/**
 * @dev A fulfillment is applied to a group of orders. It decrements a series of
 *      offer and consideration items, then generates a single execution
 *      element. A given fulfillment can be applied to as many offer and
 *      consideration items as desired, but must contain at least one offer and
 *      at least one consideration that match. The fulfillment must also remain
 *      consistent on all key parameters across all offer items (same offerer,
 *      token, type, tokenId, and conduit preference) as well as across all
 *      consideration items (token, type, tokenId, and recipient).
 */
struct Fulfillment {
    FulfillmentComponent[] offerComponents;
    FulfillmentComponent[] considerationComponents;
}

/**
 * @dev Each fulfillment component contains one index referencing a specific
 *      order and another referencing a specific offer or consideration item.
 */
struct FulfillmentComponent {
    uint256 orderIndex;
    uint256 itemIndex;
}

/**
 * @dev An execution is triggered once all consideration items have been zeroed
 *      out. It sends the item in question from the offerer to the item's
 *      recipient, optionally sourcing approvals from either this contract
 *      directly or from the offerer's chosen conduit if one is specified. An
 *      execution is not provided as an argument, but rather is derived via
 *      orders, criteria resolvers, and fulfillments (where the total number of
 *      executions will be less than or equal to the total number of indicated
 *      fulfillments) and returned as part of `matchOrders`.
 */
struct Execution {
    ReceivedItem item;
    address offerer;
    bytes32 conduitKey;
}

//SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "../openzeppelin/contracts/IERC20.sol";
import "../openzeppelin/contracts/SafeERC20.sol";
import "../openzeppelin/contracts/SafeCast.sol";
import "../openzeppelin/contracts/Ownable.sol";
import "../openzeppelin/contracts/ERC721Enumerable.sol";

/**
 * @title ApeCoin Staking Contract
 * @notice Stake ApeCoin across four different pools that release hourly rewards
 * @author HorizenLabs
 */
contract ApeCoinStaking is Ownable {
    using SafeCast for uint256;
    using SafeCast for int256;

    /// @notice State for ApeCoin, BAYC, MAYC, and Pair Pools
    struct Pool {
        uint48 lastRewardedTimestampHour;
        uint16 lastRewardsRangeIndex;
        uint96 stakedAmount;
        uint96 accumulatedRewardsPerShare;
        TimeRange[] timeRanges;
    }

    /// @notice Pool rules valid for a given duration of time.
    /// @dev All TimeRange timestamp values must represent whole hours
    struct TimeRange {
        uint48 startTimestampHour;
        uint48 endTimestampHour;
        uint96 rewardsPerHour;
        uint96 capPerPosition;
    }

    /// @dev Convenience struct for front-end applications
    struct PoolUI {
        uint256 poolId;
        uint256 stakedAmount;
        TimeRange currentTimeRange;
    }

    /// @dev Per address amount and reward tracking
    struct Position {
        uint256 stakedAmount;
        int256 rewardsDebt;
    }
    mapping (address => Position) public addressPosition;

    /// @dev Struct for depositing and withdrawing from the BAYC and MAYC NFT pools
    struct SingleNft {
        uint32 tokenId;
        uint224 amount;
    }
    /// @dev Struct for depositing from the BAKC (Pair) pool
    struct PairNftDepositWithAmount {
        uint32 mainTokenId;
        uint32 bakcTokenId;
        uint184 amount;
    }
    /// @dev Struct for withdrawing from the BAKC (Pair) pool
    struct PairNftWithdrawWithAmount {
        uint32 mainTokenId;
        uint32 bakcTokenId;
        uint184 amount;
        bool isUncommit;
    }
    /// @dev Struct for claiming from an NFT pool
    struct PairNft {
        uint128 mainTokenId;
        uint128 bakcTokenId;
    }
    /// @dev NFT paired status.  Can be used bi-directionally (BAYC/MAYC -> BAKC) or (BAKC -> BAYC/MAYC)
    struct PairingStatus {
        uint248 tokenId;
        bool isPaired;
    }

    // @dev UI focused payload
    struct DashboardStake {
        uint256 poolId;
        uint256 tokenId;
        uint256 deposited;
        uint256 unclaimed;
        uint256 rewards24hr;
        DashboardPair pair;
    }
    /// @dev Sub struct for DashboardStake
    struct DashboardPair {
        uint256 mainTokenId;
        uint256 mainTypePoolId;
    }
    /// @dev Placeholder for pair status, used by ApeCoin Pool
    DashboardPair private NULL_PAIR = DashboardPair(0, 0);

    /// @notice Internal ApeCoin amount for distributing staking reward claims
    IERC20 public immutable apeCoin;
    uint256 private constant APE_COIN_PRECISION = 1e18;
    uint256 private constant MIN_DEPOSIT = 1 * APE_COIN_PRECISION;
    uint256 private constant SECONDS_PER_HOUR = 3600;
    uint256 private constant SECONDS_PER_MINUTE = 60;

    uint256 constant APECOIN_POOL_ID = 0;
    uint256 constant BAYC_POOL_ID = 1;
    uint256 constant MAYC_POOL_ID = 2;
    uint256 constant BAKC_POOL_ID = 3;
    Pool[4] public pools;

    /// @dev NFT contract mapping per pool
    mapping(uint256 => ERC721Enumerable) public nftContracts;
    /// @dev poolId => tokenId => nft position
    mapping(uint256 => mapping(uint256 => Position)) public nftPosition;
    /// @dev main type pool ID: 1: BAYC 2: MAYC => main token ID => bakc token ID
    mapping(uint256 => mapping(uint256 => PairingStatus)) public mainToBakc;
    /// @dev bakc Token ID => main type pool ID: 1: BAYC 2: MAYC => main token ID
    mapping(uint256 => mapping(uint256 => PairingStatus)) public bakcToMain;

    /** Custom Events */
    event UpdatePool(
        uint256 indexed poolId,
        uint256 lastRewardedBlock,
        uint256 stakedAmount,
        uint256 accumulatedRewardsPerShare
    );
    event Deposit(
        address indexed user,
        uint256 amount,
        address recipient
    );
    event DepositNft(
        address indexed user,
        uint256 indexed poolId,
        uint256 amount,
        uint256 tokenId
    );
    event DepositPairNft(
        address indexed user,
        uint256 amount,
        uint256 mainTypePoolId,
        uint256 mainTokenId,
        uint256 bakcTokenId
    );
    event Withdraw(
        address indexed user,
        uint256 amount,
        address recipient
    );
    event WithdrawNft(
        address indexed user,
        uint256 indexed poolId,
        uint256 amount,
        address recipient,
        uint256 tokenId
    );
    event WithdrawPairNft(
        address indexed user,
        uint256 amount,
        uint256 mainTypePoolId,
        uint256 mainTokenId,
        uint256 bakcTokenId
    );
    event ClaimRewards(
        address indexed user,
        uint256 amount,
        address recipient
    );
    event ClaimRewardsNft(
        address indexed user,
        uint256 indexed poolId,
        uint256 amount,
        uint256 tokenId
    );
    event ClaimRewardsPairNft(
        address indexed user,
        uint256 amount,
        uint256 mainTypePoolId,
        uint256 mainTokenId,
        uint256 bakcTokenId
    );

    error DepositMoreThanOneAPE();
    error InvalidPoolId();
    error StartMustBeGreaterThanEnd();
    error StartNotWholeHour();
    error EndNotWholeHour();
    error StartMustEqualLastEnd();
    error CallerNotOwner();
    error MainTokenNotOwnedOrPaired();
    error BAKCNotOwnedOrPaired();
    error BAKCAlreadyPaired();
    error ExceededCapAmount();
    error NotOwnerOfMain();
    error NotOwnerOfBAKC();
    error ProvidedTokensNotPaired();
    error ExceededStakedAmount();
    error NeitherTokenInPairOwnedByCaller();
    error SplitPairCantPartiallyWithdraw();
    error UncommitWrongParameters();

    /**
     * @notice Construct a new ApeCoinStaking instance
     * @param _apeCoinContractAddress The ApeCoin ERC20 contract address
     * @param _baycContractAddress The BAYC NFT contract address
     * @param _maycContractAddress The MAYC NFT contract address
     * @param _bakcContractAddress The BAKC NFT contract address
     */
    constructor(
        address _apeCoinContractAddress,
        address _baycContractAddress,
        address _maycContractAddress,
        address _bakcContractAddress
    ) {
        apeCoin = IERC20(_apeCoinContractAddress);
        nftContracts[BAYC_POOL_ID] = ERC721Enumerable(_baycContractAddress);
        nftContracts[MAYC_POOL_ID] = ERC721Enumerable(_maycContractAddress);
        nftContracts[BAKC_POOL_ID] = ERC721Enumerable(_bakcContractAddress);
    }

    // Deposit/Commit Methods

    /**
     * @notice Deposit ApeCoin to the ApeCoin Pool
     * @param _amount Amount in ApeCoin
     * @param _recipient Address the deposit it stored to
     * @dev ApeCoin deposit must be >= 1 ApeCoin
     */
    function depositApeCoin(uint256 _amount, address _recipient) public {
        if (_amount < MIN_DEPOSIT) revert DepositMoreThanOneAPE();
        updatePool(APECOIN_POOL_ID);

        Position storage position = addressPosition[_recipient];
        _deposit(APECOIN_POOL_ID, position, _amount);

        apeCoin.transferFrom(msg.sender, address(this), _amount);

        emit Deposit(msg.sender, _amount, _recipient);
    }

    /**
     * @notice Deposit ApeCoin to the ApeCoin Pool
     * @param _amount Amount in ApeCoin
     * @dev Deposit on behalf of msg.sender. ApeCoin deposit must be >= 1 ApeCoin
     */
    function depositSelfApeCoin(uint256 _amount) external {
        depositApeCoin(_amount, msg.sender);
    }

    /**
     * @notice Deposit ApeCoin to the BAYC Pool
     * @param _nfts Array of SingleNft structs
     * @dev Commits 1 or more BAYC NFTs, each with an ApeCoin amount to the BAYC pool.\
     * Each BAYC committed must attach an ApeCoin amount >= 1 ApeCoin and <= the BAYC pool cap amount.
     */
    function depositBAYC(SingleNft[] calldata _nfts) external {
        _depositNft(BAYC_POOL_ID, _nfts);
    }

    /**
     * @notice Deposit ApeCoin to the MAYC Pool
     * @param _nfts Array of SingleNft structs
     * @dev Commits 1 or more MAYC NFTs, each with an ApeCoin amount to the MAYC pool.\
     * Each MAYC committed must attach an ApeCoin amount >= 1 ApeCoin and <= the MAYC pool cap amount.
     */
    function depositMAYC(SingleNft[] calldata _nfts) external {
        _depositNft(MAYC_POOL_ID, _nfts);
    }

    /**
     * @notice Deposit ApeCoin to the Pair Pool, where Pair = (BAYC + BAKC) or (MAYC + BAKC)
     * @param _baycPairs Array of PairNftDepositWithAmount structs
     * @param _maycPairs Array of PairNftDepositWithAmount structs
     * @dev Commits 1 or more Pairs, each with an ApeCoin amount to the Pair pool.\
     * Each BAKC committed must attach an ApeCoin amount >= 1 ApeCoin and <= the Pair pool cap amount.\
     * Example 1: BAYC + BAKC + 1 ApeCoin:  [[0, 0, "1000000000000000000"],[]]\
     * Example 2: MAYC + BAKC + 1 ApeCoin:  [[], [0, 0, "1000000000000000000"]]\
     * Example 3: (BAYC + BAKC + 1 ApeCoin) and (MAYC + BAKC + 1 ApeCoin): [[0, 0, "1000000000000000000"], [0, 1, "1000000000000000000"]]
     */
    function depositBAKC(PairNftDepositWithAmount[] calldata _baycPairs, PairNftDepositWithAmount[] calldata _maycPairs) external {
        updatePool(BAKC_POOL_ID);
        _depositPairNft(BAYC_POOL_ID, _baycPairs);
        _depositPairNft(MAYC_POOL_ID, _maycPairs);
    }

    // Claim Rewards Methods

    /**
     * @notice Claim rewards for msg.sender and send to recipient
     * @param _recipient Address to send claim reward to
     */
    function claimApeCoin(address _recipient) public {
        updatePool(APECOIN_POOL_ID);

        Position storage position = addressPosition[msg.sender];
        uint256 rewardsToBeClaimed = _claim(APECOIN_POOL_ID, position, _recipient);

        emit ClaimRewards(msg.sender, rewardsToBeClaimed, _recipient);
    }

    /// @notice Claim and send rewards
    function claimSelfApeCoin() external {
        claimApeCoin(msg.sender);
    }

    /**
     * @notice Claim rewards for array of BAYC NFTs and send to recipient
     * @param _nfts Array of NFTs owned and committed by the msg.sender
     * @param _recipient Address to send claim reward to
     */
    function claimBAYC(uint256[] calldata _nfts, address _recipient) external {
        _claimNft(BAYC_POOL_ID, _nfts, _recipient);
    }

    /**
     * @notice Claim rewards for array of BAYC NFTs
     * @param _nfts Array of NFTs owned and committed by the msg.sender
     */
    function claimSelfBAYC(uint256[] calldata _nfts) external {
        _claimNft(BAYC_POOL_ID, _nfts, msg.sender);
    }

    /**
     * @notice Claim rewards for array of MAYC NFTs and send to recipient
     * @param _nfts Array of NFTs owned and committed by the msg.sender
     * @param _recipient Address to send claim reward to
     */
    function claimMAYC(uint256[] calldata _nfts, address _recipient) external {
        _claimNft(MAYC_POOL_ID, _nfts, _recipient);
    }

    /**
     * @notice Claim rewards for array of MAYC NFTs
     * @param _nfts Array of NFTs owned and committed by the msg.sender
     */
    function claimSelfMAYC(uint256[] calldata _nfts) external {
        _claimNft(MAYC_POOL_ID, _nfts, msg.sender);
    }

    /**
     * @notice Claim rewards for array of Paired NFTs and send to recipient
     * @param _baycPairs Array of Paired BAYC NFTs owned and committed by the msg.sender
     * @param _maycPairs Array of Paired MAYC NFTs owned and committed by the msg.sender
     * @param _recipient Address to send claim reward to
     */
    function claimBAKC(PairNft[] calldata _baycPairs, PairNft[] calldata _maycPairs, address _recipient) public {
        updatePool(BAKC_POOL_ID);
        _claimPairNft(BAYC_POOL_ID, _baycPairs, _recipient);
        _claimPairNft(MAYC_POOL_ID, _maycPairs, _recipient);
    }

    /**
     * @notice Claim rewards for array of Paired NFTs
     * @param _baycPairs Array of Paired BAYC NFTs owned and committed by the msg.sender
     * @param _maycPairs Array of Paired MAYC NFTs owned and committed by the msg.sender
     */
    function claimSelfBAKC(PairNft[] calldata _baycPairs, PairNft[] calldata _maycPairs) external {
        claimBAKC(_baycPairs, _maycPairs, msg.sender);
    }

    // Uncommit/Withdraw Methods

    /**
     * @notice Withdraw staked ApeCoin from the ApeCoin pool.  Performs an automatic claim as part of the withdraw process.
     * @param _amount Amount of ApeCoin
     * @param _recipient Address to send withdraw amount and claim to
     */
    function withdrawApeCoin(uint256 _amount, address _recipient) public {
        updatePool(APECOIN_POOL_ID);

        Position storage position = addressPosition[msg.sender];
        if (_amount == position.stakedAmount) {
            uint256 rewardsToBeClaimed = _claim(APECOIN_POOL_ID, position, _recipient);
            emit ClaimRewards(msg.sender, rewardsToBeClaimed, _recipient);
        }
        _withdraw(APECOIN_POOL_ID, position, _amount);

        apeCoin.transfer(_recipient, _amount);

        emit Withdraw(msg.sender, _amount, _recipient);
    }

    /**
     * @notice Withdraw staked ApeCoin from the ApeCoin pool.  If withdraw is total staked amount, performs an automatic claim.
     * @param _amount Amount of ApeCoin
     */
    function withdrawSelfApeCoin(uint256 _amount) external {
        withdrawApeCoin(_amount, msg.sender);
    }

    /**
     * @notice Withdraw staked ApeCoin from the BAYC pool.  If withdraw is total staked amount, performs an automatic claim.
     * @param _nfts Array of BAYC NFT's with staked amounts
     * @param _recipient Address to send withdraw amount and claim to
     */
    function withdrawBAYC(SingleNft[] calldata _nfts, address _recipient) external {
        _withdrawNft(BAYC_POOL_ID, _nfts, _recipient);
    }

    /**
     * @notice Withdraw staked ApeCoin from the BAYC pool.  If withdraw is total staked amount, performs an automatic claim.
     * @param _nfts Array of BAYC NFT's with staked amounts
     */
    function withdrawSelfBAYC(SingleNft[] calldata _nfts) external {
        _withdrawNft(BAYC_POOL_ID, _nfts, msg.sender);
    }

    /**
     * @notice Withdraw staked ApeCoin from the MAYC pool.  If withdraw is total staked amount, performs an automatic claim.
     * @param _nfts Array of MAYC NFT's with staked amounts
     * @param _recipient Address to send withdraw amount and claim to
     */
    function withdrawMAYC(SingleNft[] calldata _nfts, address _recipient) external {
        _withdrawNft(MAYC_POOL_ID, _nfts, _recipient);
    }

    /**
     * @notice Withdraw staked ApeCoin from the MAYC pool.  If withdraw is total staked amount, performs an automatic claim.
     * @param _nfts Array of MAYC NFT's with staked amounts
     */
    function withdrawSelfMAYC(SingleNft[] calldata _nfts) external {
        _withdrawNft(MAYC_POOL_ID, _nfts, msg.sender);
    }

    /**
     * @notice Withdraw staked ApeCoin from the Pair pool.  If withdraw is total staked amount, performs an automatic claim.
     * @param _baycPairs Array of Paired BAYC NFT's with staked amounts and isUncommit boolean
     * @param _maycPairs Array of Paired MAYC NFT's with staked amounts and isUncommit boolean
     * @dev if pairs have split ownership and BAKC is attempting a withdraw, the withdraw must be for the total staked amount
     */
    function withdrawBAKC(PairNftWithdrawWithAmount[] calldata _baycPairs, PairNftWithdrawWithAmount[] calldata _maycPairs) external {
        updatePool(BAKC_POOL_ID);
        _withdrawPairNft(BAYC_POOL_ID, _baycPairs);
        _withdrawPairNft(MAYC_POOL_ID, _maycPairs);
    }

    // Time Range Methods

    /**
     * @notice Add single time range with a given rewards per hour for a given pool
     * @dev In practice one Time Range will represent one quarter (defined by `_startTimestamp`and `_endTimeStamp` as whole hours)
     * where the rewards per hour is constant for a given pool.
     * @param _poolId Available pool values 0-3
     * @param _amount Total amount of ApeCoin to be distributed over the range
     * @param _startTimestamp Whole hour timestamp representation
     * @param _endTimeStamp Whole hour timestamp representation
     * @param _capPerPosition Per position cap amount determined by poolId
     */
    function addTimeRange(
        uint256 _poolId,
        uint256 _amount,
        uint256 _startTimestamp,
        uint256 _endTimeStamp,
        uint256 _capPerPosition) external onlyOwner
    {
        if (_poolId > BAKC_POOL_ID) revert InvalidPoolId();
        if (_startTimestamp >= _endTimeStamp) revert StartMustBeGreaterThanEnd();
        if (getMinute(_startTimestamp) > 0 || getSecond(_startTimestamp) > 0) revert StartNotWholeHour();
        if (getMinute(_endTimeStamp) > 0 || getSecond(_endTimeStamp) > 0) revert EndNotWholeHour();

        Pool storage pool = pools[_poolId];
        uint256 length = pool.timeRanges.length;
        if (length > 0) {
            if (_startTimestamp != pool.timeRanges[length - 1].endTimestampHour) revert StartMustEqualLastEnd();
        }

        uint256 hoursInSeconds = _endTimeStamp - _startTimestamp;
        uint256 rewardsPerHour = _amount * SECONDS_PER_HOUR / hoursInSeconds;

        TimeRange memory next = TimeRange(_startTimestamp.toUint48(), _endTimeStamp.toUint48(),
            rewardsPerHour.toUint96(), _capPerPosition.toUint96());
        pool.timeRanges.push(next);
    }

    /**
     * @notice Removes the last Time Range for a given pool.
     * @param _poolId Available pool values 0-3
     */
    function removeLastTimeRange(uint256 _poolId) external onlyOwner {
        pools[_poolId].timeRanges.pop();
    }

    /**
     * @notice Lookup method for a TimeRange struct
     * @return TimeRange A Pool's timeRanges struct by index.
     * @param _poolId Available pool values 0-3
     * @param _index Target index in a Pool's timeRanges array
     */
    function getTimeRangeBy(uint256 _poolId, uint256 _index) public view returns (TimeRange memory) {
        return pools[_poolId].timeRanges[_index];
    }

    // Pool Methods

    /**
     * @notice Lookup available rewards for a pool over a given time range
     * @return uint256 The amount of ApeCoin rewards to be distributed by pool for a given time range
     * @return uint256 The amount of time ranges
     * @param _poolId Available pool values 0-3
     * @param _from Whole hour timestamp representation
     * @param _to Whole hour timestamp representation
     */
    function rewardsBy(uint256 _poolId, uint256 _from, uint256 _to) public view returns (uint256, uint256) {
        Pool memory pool = pools[_poolId];

        uint256 currentIndex = pool.lastRewardsRangeIndex;
        if(_to < pool.timeRanges[0].startTimestampHour) return (0, currentIndex);

        while(_from > pool.timeRanges[currentIndex].endTimestampHour && _to > pool.timeRanges[currentIndex].endTimestampHour) {
        unchecked {
            ++currentIndex;
        }
        }

        uint256 rewards;
        TimeRange memory current;
        uint256 startTimestampHour;
        uint256 endTimestampHour;
        uint256 length = pool.timeRanges.length;
        for(uint256 i = currentIndex; i < length;) {
            current = pool.timeRanges[i];
            startTimestampHour = _from <= current.startTimestampHour ? current.startTimestampHour : _from;
            endTimestampHour = _to <= current.endTimestampHour ? _to : current.endTimestampHour;

            rewards = rewards + (endTimestampHour - startTimestampHour) * current.rewardsPerHour / SECONDS_PER_HOUR;

            if(_to <= endTimestampHour) {
                return (rewards, i);
            }
        unchecked {
            ++i;
        }
        }

        return (rewards, length - 1);
    }

    /**
     * @notice Updates reward variables `lastRewardedTimestampHour`, `accumulatedRewardsPerShare` and `lastRewardsRangeIndex`
     * for a given pool.
     * @param _poolId Available pool values 0-3
     */
    function updatePool(uint256 _poolId) public {
        Pool storage pool = pools[_poolId];

        if (block.timestamp < pool.timeRanges[0].startTimestampHour) return;
        if (block.timestamp <= pool.lastRewardedTimestampHour + SECONDS_PER_HOUR) return;

        uint48 lastTimestampHour = pool.timeRanges[pool.timeRanges.length-1].endTimestampHour;
        uint48 previousTimestampHour = getPreviousTimestampHour().toUint48();

        if (pool.stakedAmount == 0) {
            pool.lastRewardedTimestampHour = previousTimestampHour > lastTimestampHour ? lastTimestampHour : previousTimestampHour;
            return;
        }

        (uint256 rewards, uint256 index) = rewardsBy(_poolId, pool.lastRewardedTimestampHour, previousTimestampHour);
        if (pool.lastRewardsRangeIndex != index) {
            pool.lastRewardsRangeIndex = index.toUint16();
        }
        pool.accumulatedRewardsPerShare = (pool.accumulatedRewardsPerShare + (rewards * APE_COIN_PRECISION) / pool.stakedAmount).toUint96();
        pool.lastRewardedTimestampHour = previousTimestampHour > lastTimestampHour ? lastTimestampHour : previousTimestampHour;

        emit UpdatePool(_poolId, pool.lastRewardedTimestampHour, pool.stakedAmount, pool.accumulatedRewardsPerShare);
    }

    // Read Methods

    function getCurrentTimeRangeIndex(Pool memory pool) private view returns (uint256) {
        uint256 current = pool.lastRewardsRangeIndex;

        if (block.timestamp < pool.timeRanges[current].startTimestampHour) return current;
        for(current = pool.lastRewardsRangeIndex; current < pool.timeRanges.length; ++current) {
            TimeRange memory currentTimeRange = pool.timeRanges[current];
            if (currentTimeRange.startTimestampHour <= block.timestamp && block.timestamp <= currentTimeRange.endTimestampHour) return current;
        }
        revert("distribution ended");
    }

    /**
     * @notice Fetches a PoolUI struct (poolId, stakedAmount, currentTimeRange) for each reward pool
     * @return PoolUI for ApeCoin.
     * @return PoolUI for BAYC.
     * @return PoolUI for MAYC.
     * @return PoolUI for BAKC.
     */
    function getPoolsUI() public view returns (PoolUI memory, PoolUI memory, PoolUI memory, PoolUI memory) {
        Pool memory apeCoinPool = pools[0];
        Pool memory baycPool = pools[1];
        Pool memory maycPool = pools[2];
        Pool memory bakcPool = pools[3];
        uint256 current = getCurrentTimeRangeIndex(apeCoinPool);
        return (PoolUI(0,apeCoinPool.stakedAmount, apeCoinPool.timeRanges[current]),
        PoolUI(1,baycPool.stakedAmount, baycPool.timeRanges[current]),
        PoolUI(2,maycPool.stakedAmount, maycPool.timeRanges[current]),
        PoolUI(3,bakcPool.stakedAmount, bakcPool.timeRanges[current]));
    }

    /**
     * @notice Fetches an address total staked amount, used by voting contract
     * @return amount uint256 staked amount for all pools.
     * @param _address An Ethereum address
     */
    function stakedTotal(address _address) external view returns (uint256) {
        uint256 total = addressPosition[_address].stakedAmount;

        total += _stakedTotal(BAYC_POOL_ID, _address);
        total += _stakedTotal(MAYC_POOL_ID, _address);
        total += _stakedTotalPair(_address);

        return total;
    }

    function _stakedTotal(uint256 _poolId, address _addr) private view returns (uint256) {
        uint256 total = 0;
        uint256 nftCount = nftContracts[_poolId].balanceOf(_addr);
        for(uint256 i = 0; i < nftCount; ++i) {
            uint256 tokenId = nftContracts[_poolId].tokenOfOwnerByIndex(_addr, i);
            total += nftPosition[_poolId][tokenId].stakedAmount;
        }

        return total;
    }

    function _stakedTotalPair(address _addr) private view returns (uint256) {
        uint256 total = 0;

        uint256 nftCount = nftContracts[BAYC_POOL_ID].balanceOf(_addr);
        for(uint256 i = 0; i < nftCount; ++i) {
            uint256 baycTokenId = nftContracts[BAYC_POOL_ID].tokenOfOwnerByIndex(_addr, i);
            if (mainToBakc[BAYC_POOL_ID][baycTokenId].isPaired) {
                uint256 bakcTokenId = mainToBakc[BAYC_POOL_ID][baycTokenId].tokenId;
                total += nftPosition[BAKC_POOL_ID][bakcTokenId].stakedAmount;
            }
        }

        nftCount = nftContracts[MAYC_POOL_ID].balanceOf(_addr);
        for(uint256 i = 0; i < nftCount; ++i) {
            uint256 maycTokenId = nftContracts[MAYC_POOL_ID].tokenOfOwnerByIndex(_addr, i);
            if (mainToBakc[MAYC_POOL_ID][maycTokenId].isPaired) {
                uint256 bakcTokenId = mainToBakc[MAYC_POOL_ID][maycTokenId].tokenId;
                total += nftPosition[BAKC_POOL_ID][bakcTokenId].stakedAmount;
            }
        }

        return total;
    }

    /**
     * @notice Fetches a DashboardStake = [poolId, tokenId, deposited, unclaimed, rewards24Hrs, paired] \
     * for each pool, for an Ethereum address
     * @return dashboardStakes An array of DashboardStake structs
     * @param _address An Ethereum address
     */
    function getAllStakes(address _address) public view returns (DashboardStake[] memory) {

        DashboardStake memory apeCoinStake = getApeCoinStake(_address);
        DashboardStake[] memory baycStakes = getBaycStakes(_address);
        DashboardStake[] memory maycStakes = getMaycStakes(_address);
        DashboardStake[] memory bakcStakes = getBakcStakes(_address);
        DashboardStake[] memory splitStakes = getSplitStakes(_address);

        uint256 count = (baycStakes.length + maycStakes.length + bakcStakes.length + splitStakes.length + 1);
        DashboardStake[] memory allStakes = new DashboardStake[](count);

        uint256 offset = 0;
        allStakes[offset] = apeCoinStake;
        ++offset;

        for(uint256 i = 0; i < baycStakes.length; ++i) {
            allStakes[offset] = baycStakes[i];
            ++offset;
        }

        for(uint256 i = 0; i < maycStakes.length; ++i) {
            allStakes[offset] = maycStakes[i];
            ++offset;
        }

        for(uint256 i = 0; i < bakcStakes.length; ++i) {
            allStakes[offset] = bakcStakes[i];
            ++offset;
        }

        for(uint256 i = 0; i < splitStakes.length; ++i) {
            allStakes[offset] = splitStakes[i];
            ++offset;
        }

        return allStakes;
    }

    /**
     * @notice Fetches a DashboardStake for the ApeCoin pool
     * @return dashboardStake A dashboardStake struct
     * @param _address An Ethereum address
     */
    function getApeCoinStake(address _address) public view returns (DashboardStake memory) {
        uint256 tokenId = 0;
        uint256 deposited = addressPosition[_address].stakedAmount;
        uint256 unclaimed = deposited > 0 ? this.pendingRewards(0, _address, tokenId) : 0;
        uint256 rewards24Hrs = deposited > 0 ? _estimate24HourRewards(0, _address, 0) : 0;

        return DashboardStake(APECOIN_POOL_ID, tokenId, deposited, unclaimed, rewards24Hrs, NULL_PAIR);
    }

    /**
     * @notice Fetches an array of DashboardStakes for the BAYC pool
     * @return dashboardStakes An array of DashboardStake structs
     */
    function getBaycStakes(address _address) public view returns (DashboardStake[] memory) {
        return _getStakes(_address, BAYC_POOL_ID);
    }

    /**
     * @notice Fetches an array of DashboardStakes for the MAYC pool
     * @return dashboardStakes An array of DashboardStake structs
     */
    function getMaycStakes(address _address) public view returns (DashboardStake[] memory) {
        return _getStakes(_address, MAYC_POOL_ID);
    }

    /**
     * @notice Fetches an array of DashboardStakes for the BAKC pool
     * @return dashboardStakes An array of DashboardStake structs
     */
    function getBakcStakes(address _address) public view returns (DashboardStake[] memory) {
        return _getStakes(_address, BAKC_POOL_ID);
    }

    /**
     * @notice Fetches an array of DashboardStakes for the Pair Pool when ownership is split \
     * ie (BAYC/MAYC) and BAKC in pair pool have different owners.
     * @return dashboardStakes An array of DashboardStake structs
     * @param _address An Ethereum address
     */
    function getSplitStakes(address _address) public view returns (DashboardStake[] memory) {
        uint256 baycSplits = _getSplitStakeCount(nftContracts[BAYC_POOL_ID].balanceOf(_address), _address, BAYC_POOL_ID);
        uint256 maycSplits = _getSplitStakeCount(nftContracts[MAYC_POOL_ID].balanceOf(_address), _address, MAYC_POOL_ID);
        uint256 totalSplits = baycSplits + maycSplits;

        if(totalSplits == 0) {
            return new DashboardStake[](0);
        }

        DashboardStake[] memory baycSplitStakes = _getSplitStakes(baycSplits, _address, BAYC_POOL_ID);
        DashboardStake[] memory maycSplitStakes = _getSplitStakes(maycSplits, _address, MAYC_POOL_ID);

        DashboardStake[] memory splitStakes = new DashboardStake[](totalSplits);
        uint256 offset = 0;
        for(uint256 i = 0; i < baycSplitStakes.length; ++i) {
            splitStakes[offset] = baycSplitStakes[i];
            ++offset;
        }

        for(uint256 i = 0; i < maycSplitStakes.length; ++i) {
            splitStakes[offset] = maycSplitStakes[i];
            ++offset;
        }

        return splitStakes;
    }

    function _getSplitStakes(uint256 splits, address _address, uint256 _mainPoolId) private view returns (DashboardStake[] memory) {

        DashboardStake[] memory dashboardStakes = new DashboardStake[](splits);
        uint256 counter;

        for(uint256 i = 0; i < nftContracts[_mainPoolId].balanceOf(_address); ++i) {
            uint256 mainTokenId = nftContracts[_mainPoolId].tokenOfOwnerByIndex(_address, i);
            if(mainToBakc[_mainPoolId][mainTokenId].isPaired) {
                uint256 bakcTokenId = mainToBakc[_mainPoolId][mainTokenId].tokenId;
                address currentOwner = nftContracts[BAKC_POOL_ID].ownerOf(bakcTokenId);

                /* Split Pair Check*/
                if (currentOwner != _address) {
                    uint256 deposited = nftPosition[BAKC_POOL_ID][bakcTokenId].stakedAmount;
                    uint256 unclaimed = deposited > 0 ? this.pendingRewards(BAKC_POOL_ID, currentOwner, bakcTokenId) : 0;
                    uint256 rewards24Hrs = deposited > 0 ? _estimate24HourRewards(BAKC_POOL_ID, currentOwner, bakcTokenId): 0;

                    DashboardPair memory pair = NULL_PAIR;
                    if(bakcToMain[bakcTokenId][_mainPoolId].isPaired) {
                        pair = DashboardPair(bakcToMain[bakcTokenId][_mainPoolId].tokenId, _mainPoolId);
                    }

                    DashboardStake memory dashboardStake = DashboardStake(BAKC_POOL_ID, bakcTokenId, deposited, unclaimed, rewards24Hrs, pair);
                    dashboardStakes[counter] = dashboardStake;
                    ++counter;
                }
            }
        }

        return dashboardStakes;
    }

    function _getSplitStakeCount(uint256 nftCount, address _address, uint256 _mainPoolId) private view returns (uint256) {
        uint256 splitCount;
        for(uint256 i = 0; i < nftCount; ++i) {
            uint256 mainTokenId = nftContracts[_mainPoolId].tokenOfOwnerByIndex(_address, i);
            if(mainToBakc[_mainPoolId][mainTokenId].isPaired) {
                uint256 bakcTokenId = mainToBakc[_mainPoolId][mainTokenId].tokenId;
                address currentOwner = nftContracts[BAKC_POOL_ID].ownerOf(bakcTokenId);
                if (currentOwner != _address) {
                    ++splitCount;
                }
            }
        }

        return splitCount;
    }

    function _getStakes(address _address, uint256 _poolId) private view returns (DashboardStake[] memory) {
        uint256 nftCount = nftContracts[_poolId].balanceOf(_address);
        DashboardStake[] memory dashboardStakes = nftCount > 0 ? new DashboardStake[](nftCount) : new DashboardStake[](0);

        if(nftCount == 0) {
            return dashboardStakes;
        }

        for(uint256 i = 0; i < nftCount; ++i) {
            uint256 tokenId = nftContracts[_poolId].tokenOfOwnerByIndex(_address, i);
            uint256 deposited = nftPosition[_poolId][tokenId].stakedAmount;
            uint256 unclaimed = deposited > 0 ? this.pendingRewards(_poolId, _address, tokenId) : 0;
            uint256 rewards24Hrs = deposited > 0 ? _estimate24HourRewards(_poolId, _address, tokenId): 0;

            DashboardPair memory pair = NULL_PAIR;
            if(_poolId == BAKC_POOL_ID) {
                if(bakcToMain[tokenId][BAYC_POOL_ID].isPaired) {
                    pair = DashboardPair(bakcToMain[tokenId][BAYC_POOL_ID].tokenId, BAYC_POOL_ID);
                } else if(bakcToMain[tokenId][MAYC_POOL_ID].isPaired) {
                    pair = DashboardPair(bakcToMain[tokenId][MAYC_POOL_ID].tokenId, MAYC_POOL_ID);
                }
            }

            DashboardStake memory dashboardStake = DashboardStake(_poolId, tokenId, deposited, unclaimed, rewards24Hrs, pair);
            dashboardStakes[i] = dashboardStake;
        }

        return dashboardStakes;
    }

    function _estimate24HourRewards(uint256 _poolId, address _address, uint256 _tokenId) private view returns (uint256) {
        Pool memory pool = pools[_poolId];
        Position memory position = _poolId == 0 ? addressPosition[_address]: nftPosition[_poolId][_tokenId];

        TimeRange memory rewards = getTimeRangeBy(_poolId, pool.lastRewardsRangeIndex);
        return (position.stakedAmount * uint256(rewards.rewardsPerHour) * 24) / uint256(pool.stakedAmount);
    }

    /**
     * @notice Fetches the current amount of claimable ApeCoin rewards for a given position from a given pool.
     * @return uint256 value of pending rewards
     * @param _poolId Available pool values 0-3
     * @param _address Address to lookup Position for
     * @param _tokenId An NFT id
     */
    function pendingRewards(uint256 _poolId, address _address, uint256 _tokenId) external view returns (uint256) {
        Pool memory pool = pools[_poolId];
        Position memory position = _poolId == 0 ? addressPosition[_address]: nftPosition[_poolId][_tokenId];

        (uint256 rewardsSinceLastCalculated,) = rewardsBy(_poolId, pool.lastRewardedTimestampHour, getPreviousTimestampHour());
        uint256 accumulatedRewardsPerShare = pool.accumulatedRewardsPerShare;

        if (block.timestamp > pool.lastRewardedTimestampHour + SECONDS_PER_HOUR && pool.stakedAmount != 0) {
            accumulatedRewardsPerShare = accumulatedRewardsPerShare + rewardsSinceLastCalculated * APE_COIN_PRECISION / pool.stakedAmount;
        }
        return ((position.stakedAmount * accumulatedRewardsPerShare).toInt256() - position.rewardsDebt).toUint256() / APE_COIN_PRECISION;
    }

    // Convenience methods for timestamp calculation

    /// @notice the minutes (0 to 59) of a timestamp
    function getMinute(uint256 timestamp) internal pure returns (uint256 minute) {
        uint256 secs = timestamp % SECONDS_PER_HOUR;
        minute = secs / SECONDS_PER_MINUTE;
    }

    /// @notice the seconds (0 to 59) of a timestamp
    function getSecond(uint256 timestamp) internal pure returns (uint256 second) {
        second = timestamp % SECONDS_PER_MINUTE;
    }

    /// @notice the previous whole hour of a timestamp
    function getPreviousTimestampHour() internal view returns (uint256) {
        return block.timestamp - (getMinute(block.timestamp) * 60 + getSecond(block.timestamp));
    }

    // Private Methods - shared logic
    function _deposit(uint256 _poolId, Position storage _position, uint256 _amount) private {
        Pool storage pool = pools[_poolId];

        _position.stakedAmount += _amount;
        pool.stakedAmount += _amount.toUint96();
        _position.rewardsDebt += (_amount * pool.accumulatedRewardsPerShare).toInt256();
    }

    function _depositNft(uint256 _poolId, SingleNft[] calldata _nfts) private {
        updatePool(_poolId);
        uint256 tokenId;
        uint256 amount;
        Position storage position;
        uint256 length = _nfts.length;
        uint256 totalDeposit;
        for(uint256 i; i < length;) {
            tokenId = _nfts[i].tokenId;
            position = nftPosition[_poolId][tokenId];
            if (position.stakedAmount == 0) {
                if (nftContracts[_poolId].ownerOf(tokenId) != msg.sender) revert CallerNotOwner();
            }
            amount = _nfts[i].amount;
            _depositNftGuard(_poolId, position, amount);
            totalDeposit += amount;
            emit DepositNft(msg.sender, _poolId, amount, tokenId);
            unchecked {
                ++i;
            }
        }
        if (totalDeposit > 0) apeCoin.transferFrom(msg.sender, address(this), totalDeposit);
    }

    function _depositPairNft(uint256 mainTypePoolId, PairNftDepositWithAmount[] calldata _nfts) private {
        uint256 length = _nfts.length;
        uint256 totalDeposit;
        PairNftDepositWithAmount memory pair;
        Position storage position;
        for(uint256 i; i < length;) {
            pair = _nfts[i];
            position = nftPosition[BAKC_POOL_ID][pair.bakcTokenId];

            if(position.stakedAmount == 0) {
                if (nftContracts[mainTypePoolId].ownerOf(pair.mainTokenId) != msg.sender
                    || mainToBakc[mainTypePoolId][pair.mainTokenId].isPaired) revert MainTokenNotOwnedOrPaired();
                if (nftContracts[BAKC_POOL_ID].ownerOf(pair.bakcTokenId) != msg.sender
                    || bakcToMain[pair.bakcTokenId][mainTypePoolId].isPaired) revert BAKCNotOwnedOrPaired();

                mainToBakc[mainTypePoolId][pair.mainTokenId] = PairingStatus(pair.bakcTokenId, true);
                bakcToMain[pair.bakcTokenId][mainTypePoolId] = PairingStatus(pair.mainTokenId, true);
            } else if (pair.mainTokenId != bakcToMain[pair.bakcTokenId][mainTypePoolId].tokenId
                || pair.bakcTokenId != mainToBakc[mainTypePoolId][pair.mainTokenId].tokenId)
                revert BAKCAlreadyPaired();

            _depositNftGuard(BAKC_POOL_ID, position, pair.amount);
            totalDeposit += pair.amount;
            emit DepositPairNft(msg.sender, pair.amount, mainTypePoolId, pair.mainTokenId, pair.bakcTokenId);
            unchecked {
                ++i;
            }
        }
        if (totalDeposit > 0) apeCoin.transferFrom(msg.sender, address(this), totalDeposit);
    }

    function _depositNftGuard(uint256 _poolId, Position storage _position, uint256 _amount) private {
        if (_amount < MIN_DEPOSIT) revert DepositMoreThanOneAPE();
        if (_amount + _position.stakedAmount > pools[_poolId].timeRanges[pools[_poolId].lastRewardsRangeIndex].capPerPosition)
            revert ExceededCapAmount();

        _deposit(_poolId, _position, _amount);
    }

    function _claim(uint256 _poolId, Position storage _position, address _recipient) private returns (uint256 rewardsToBeClaimed) {
        Pool storage pool = pools[_poolId];

        int256 accumulatedApeCoins = (_position.stakedAmount * uint256(pool.accumulatedRewardsPerShare)).toInt256();
        rewardsToBeClaimed = (accumulatedApeCoins - _position.rewardsDebt).toUint256() / APE_COIN_PRECISION;

        _position.rewardsDebt = accumulatedApeCoins;

        if (rewardsToBeClaimed != 0) {
            apeCoin.transfer(_recipient, rewardsToBeClaimed);
        }
    }

    function _claimNft(uint256 _poolId, uint256[] calldata _nfts, address _recipient) private {
        updatePool(_poolId);
        uint256 tokenId;
        uint256 rewardsToBeClaimed;
        uint256 length = _nfts.length;
        for(uint256 i; i < length;) {
            tokenId = _nfts[i];
            if (nftContracts[_poolId].ownerOf(tokenId) != msg.sender) revert CallerNotOwner();
            Position storage position = nftPosition[_poolId][tokenId];
            rewardsToBeClaimed = _claim(_poolId, position, _recipient);
            emit ClaimRewardsNft(msg.sender, _poolId, rewardsToBeClaimed, tokenId);
            unchecked {
                ++i;
            }
        }
    }

    function _claimPairNft(uint256 mainTypePoolId, PairNft[] calldata _pairs, address _recipient) private {
        uint256 length = _pairs.length;
        uint256 mainTokenId;
        uint256 bakcTokenId;
        Position storage position;
        PairingStatus storage mainToSecond;
        PairingStatus storage secondToMain;
        for(uint256 i; i < length;) {
            mainTokenId = _pairs[i].mainTokenId;
            if (nftContracts[mainTypePoolId].ownerOf(mainTokenId) != msg.sender) revert NotOwnerOfMain();

            bakcTokenId = _pairs[i].bakcTokenId;
            if (nftContracts[BAKC_POOL_ID].ownerOf(bakcTokenId) != msg.sender) revert NotOwnerOfBAKC();

            mainToSecond = mainToBakc[mainTypePoolId][mainTokenId];
            secondToMain = bakcToMain[bakcTokenId][mainTypePoolId];

            if (mainToSecond.tokenId != bakcTokenId || !mainToSecond.isPaired
            || secondToMain.tokenId != mainTokenId || !secondToMain.isPaired) revert ProvidedTokensNotPaired();

            position = nftPosition[BAKC_POOL_ID][bakcTokenId];
            uint256 rewardsToBeClaimed = _claim(BAKC_POOL_ID, position, _recipient);
            emit ClaimRewardsPairNft(msg.sender, rewardsToBeClaimed, mainTypePoolId, mainTokenId, bakcTokenId);
            unchecked {
                ++i;
            }
        }
    }

    function _withdraw(uint256 _poolId, Position storage _position, uint256 _amount) private {
        if (_amount > _position.stakedAmount) revert ExceededStakedAmount();

        Pool storage pool = pools[_poolId];

        _position.stakedAmount -= _amount;
        pool.stakedAmount -= _amount.toUint96();
        _position.rewardsDebt -= (_amount * pool.accumulatedRewardsPerShare).toInt256();
    }

    function _withdrawNft(uint256 _poolId, SingleNft[] calldata _nfts, address _recipient) private {
        updatePool(_poolId);
        uint256 tokenId;
        uint256 amount;
        uint256 length = _nfts.length;
        uint256 totalWithdraw;
        Position storage position;
        for(uint256 i; i < length;) {
            tokenId = _nfts[i].tokenId;
            if (nftContracts[_poolId].ownerOf(tokenId) != msg.sender) revert CallerNotOwner();

            amount = _nfts[i].amount;
            position = nftPosition[_poolId][tokenId];
            if (amount == position.stakedAmount) {
                uint256 rewardsToBeClaimed = _claim(_poolId, position, _recipient);
                emit ClaimRewardsNft(msg.sender, _poolId, rewardsToBeClaimed, tokenId);
            }
            _withdraw(_poolId, position, amount);
            totalWithdraw += amount;
            emit WithdrawNft(msg.sender, _poolId, amount, _recipient, tokenId);
            unchecked {
                ++i;
            }
        }
        if (totalWithdraw > 0) apeCoin.transfer(_recipient, totalWithdraw);
    }

    function _withdrawPairNft(uint256 mainTypePoolId, PairNftWithdrawWithAmount[] calldata _nfts) private {
        address mainTokenOwner;
        address bakcOwner;
        PairNftWithdrawWithAmount memory pair;
        PairingStatus storage mainToSecond;
        PairingStatus storage secondToMain;
        Position storage position;
        uint256 length = _nfts.length;
        for(uint256 i; i < length;) {
            pair = _nfts[i];
            mainTokenOwner = nftContracts[mainTypePoolId].ownerOf(pair.mainTokenId);
            bakcOwner = nftContracts[BAKC_POOL_ID].ownerOf(pair.bakcTokenId);

            if (mainTokenOwner != msg.sender) {
                if (bakcOwner != msg.sender) revert NeitherTokenInPairOwnedByCaller();
            }

            mainToSecond = mainToBakc[mainTypePoolId][pair.mainTokenId];
            secondToMain = bakcToMain[pair.bakcTokenId][mainTypePoolId];

            if (mainToSecond.tokenId != pair.bakcTokenId || !mainToSecond.isPaired
            || secondToMain.tokenId != pair.mainTokenId || !secondToMain.isPaired) revert ProvidedTokensNotPaired();

            position = nftPosition[BAKC_POOL_ID][pair.bakcTokenId];
            if(!pair.isUncommit) {
                if(pair.amount == position.stakedAmount) revert UncommitWrongParameters();
            }
            if (mainTokenOwner != bakcOwner) {
                if (!pair.isUncommit) revert SplitPairCantPartiallyWithdraw();
            }

            if (pair.isUncommit) {
                uint256 rewardsToBeClaimed = _claim(BAKC_POOL_ID, position, bakcOwner);
                mainToBakc[mainTypePoolId][pair.mainTokenId] = PairingStatus(0, false);
                bakcToMain[pair.bakcTokenId][mainTypePoolId] = PairingStatus(0, false);
                emit ClaimRewardsPairNft(msg.sender, rewardsToBeClaimed, mainTypePoolId, pair.mainTokenId, pair.bakcTokenId);
            }
            uint256 finalAmountToWithdraw = pair.isUncommit ? position.stakedAmount: pair.amount;
            _withdraw(BAKC_POOL_ID, position, finalAmountToWithdraw);
            apeCoin.transfer(mainTokenOwner, finalAmountToWithdraw);
            emit WithdrawPairNft(msg.sender, finalAmountToWithdraw, mainTypePoolId, pair.mainTokenId, pair.bakcTokenId);
            unchecked {
                ++i;
            }
        }
    }

}

// SPDX-License-Identifier: AGPL-3.0
pragma solidity ^0.8.0;

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

/**
 * @title IACLManager
 *
 * @notice Defines the basic interface for the ACL Manager
 **/
interface IACLManager {
    /**
     * @notice Returns the contract address of the PoolAddressesProvider
     * @return The address of the PoolAddressesProvider
     */
    function ADDRESSES_PROVIDER()
        external
        view
        returns (IPoolAddressesProvider);

    /**
     * @notice Returns the identifier of the PoolAdmin role
     * @return The id of the PoolAdmin role
     */
    function POOL_ADMIN_ROLE() external view returns (bytes32);

    /**
     * @notice Returns the identifier of the EmergencyAdmin role
     * @return The id of the EmergencyAdmin role
     */
    function EMERGENCY_ADMIN_ROLE() external view returns (bytes32);

    /**
     * @notice Returns the identifier of the RiskAdmin role
     * @return The id of the RiskAdmin role
     */
    function RISK_ADMIN_ROLE() external view returns (bytes32);

    /**
     * @notice Returns the identifier of the FlashBorrower role
     * @return The id of the FlashBorrower role
     */
    function FLASH_BORROWER_ROLE() external view returns (bytes32);

    /**
     * @notice Returns the identifier of the Bridge role
     * @return The id of the Bridge role
     */
    function BRIDGE_ROLE() external view returns (bytes32);

    /**
     * @notice Returns the identifier of the AssetListingAdmin role
     * @return The id of the AssetListingAdmin role
     */
    function ASSET_LISTING_ADMIN_ROLE() external view returns (bytes32);

    /**
     * @notice Set the role as admin of a specific role.
     * @dev By default the admin role for all roles is `DEFAULT_ADMIN_ROLE`.
     * @param role The role to be managed by the admin role
     * @param adminRole The admin role
     */
    function setRoleAdmin(bytes32 role, bytes32 adminRole) external;

    /**
     * @notice Adds a new admin as PoolAdmin
     * @param admin The address of the new admin
     */
    function addPoolAdmin(address admin) external;

    /**
     * @notice Removes an admin as PoolAdmin
     * @param admin The address of the admin to remove
     */
    function removePoolAdmin(address admin) external;

    /**
     * @notice Returns true if the address is PoolAdmin, false otherwise
     * @param admin The address to check
     * @return True if the given address is PoolAdmin, false otherwise
     */
    function isPoolAdmin(address admin) external view returns (bool);

    /**
     * @notice Adds a new admin as EmergencyAdmin
     * @param admin The address of the new admin
     */
    function addEmergencyAdmin(address admin) external;

    /**
     * @notice Removes an admin as EmergencyAdmin
     * @param admin The address of the admin to remove
     */
    function removeEmergencyAdmin(address admin) external;

    /**
     * @notice Returns true if the address is EmergencyAdmin, false otherwise
     * @param admin The address to check
     * @return True if the given address is EmergencyAdmin, false otherwise
     */
    function isEmergencyAdmin(address admin) external view returns (bool);

    /**
     * @notice Adds a new admin as RiskAdmin
     * @param admin The address of the new admin
     */
    function addRiskAdmin(address admin) external;

    /**
     * @notice Removes an admin as RiskAdmin
     * @param admin The address of the admin to remove
     */
    function removeRiskAdmin(address admin) external;

    /**
     * @notice Returns true if the address is RiskAdmin, false otherwise
     * @param admin The address to check
     * @return True if the given address is RiskAdmin, false otherwise
     */
    function isRiskAdmin(address admin) external view returns (bool);

    /**
     * @notice Adds a new address as FlashBorrower
     * @param borrower The address of the new FlashBorrower
     */
    function addFlashBorrower(address borrower) external;

    /**
     * @notice Removes an admin as FlashBorrower
     * @param borrower The address of the FlashBorrower to remove
     */
    function removeFlashBorrower(address borrower) external;

    /**
     * @notice Returns true if the address is FlashBorrower, false otherwise
     * @param borrower The address to check
     * @return True if the given address is FlashBorrower, false otherwise
     */
    function isFlashBorrower(address borrower) external view returns (bool);

    /**
     * @notice Adds a new address as Bridge
     * @param bridge The address of the new Bridge
     */
    function addBridge(address bridge) external;

    /**
     * @notice Removes an address as Bridge
     * @param bridge The address of the bridge to remove
     */
    function removeBridge(address bridge) external;

    /**
     * @notice Returns true if the address is Bridge, false otherwise
     * @param bridge The address to check
     * @return True if the given address is Bridge, false otherwise
     */
    function isBridge(address bridge) external view returns (bool);

    /**
     * @notice Adds a new admin as AssetListingAdmin
     * @param admin The address of the new admin
     */
    function addAssetListingAdmin(address admin) external;

    /**
     * @notice Removes an admin as AssetListingAdmin
     * @param admin The address of the admin to remove
     */
    function removeAssetListingAdmin(address admin) external;

    /**
     * @notice Returns true if the address is AssetListingAdmin, false otherwise
     * @param admin The address to check
     * @return True if the given address is AssetListingAdmin, false otherwise
     */
    function isAssetListingAdmin(address admin) external view returns (bool);
}

// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.8.0;

import "../dependencies/openzeppelin/contracts/IERC20.sol";

interface IAutoCompoundApe is IERC20 {
    /**
     * @dev Emitted during deposit()
     * @param user The address of the user deposit for
     * @param amountDeposited The amount being deposit
     * @param amountShare The share being deposit
     **/
    event Deposit(
        address indexed caller,
        address indexed user,
        uint256 amountDeposited,
        uint256 amountShare
    );

    /**
     * @dev Emitted during withdraw()
     * @param user The address of the user
     * @param amountWithdraw The amount being withdraw
     * @param amountShare The share being withdraw
     **/
    event Redeem(
        address indexed user,
        uint256 amountWithdraw,
        uint256 amountShare
    );

    /**
     * @dev Emitted during rescueERC20()
     * @param token The address of the token
     * @param to The address of the recipient
     * @param amount The amount being rescued
     **/
    event RescueERC20(
        address indexed token,
        address indexed to,
        uint256 amount
    );

    /**
     * @notice deposit an `amount` of ape into compound pool.
     * @param onBehalf The address of user will receive the pool share
     * @param amount The amount of ape to be deposit
     **/
    function deposit(address onBehalf, uint256 amount) external;

    /**
     * @notice withdraw an `amount` of ape from compound pool.
     * @param amount The amount of ape to be withdraw
     **/
    function withdraw(uint256 amount) external;

    /**
     * @notice collect ape reward in ApeCoinStaking and deposit to earn compound interest.
     **/
    function harvestAndCompound() external;
}

// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.8.0;

import "../dependencies/openzeppelin/contracts/IERC20.sol";

interface ICApe is IERC20 {
    /**
     * @return the amount of shares that corresponds to `amount` protocol-controlled Ape.
     */
    function getShareByPooledApe(uint256 amount)
        external
        view
        returns (uint256);

    /**
     * @return the amount of Ape that corresponds to `sharesAmount` token shares.
     */
    function getPooledApeByShares(uint256 sharesAmount)
        external
        view
        returns (uint256);

    /**
     * @return the amount of shares belongs to _account.
     */
    function sharesOf(address _account) external view returns (uint256);
}

// SPDX-License-Identifier: AGPL-3.0
pragma solidity ^0.8.0;

import {IRewardController} from "./IRewardController.sol";
import {IPool} from "./IPool.sol";

/**
 * @title IInitializablePToken
 *
 * @notice Interface for the initialize function on PToken
 **/
interface IInitializablePToken {
    /**
     * @dev Emitted when an pToken is initialized
     * @param underlyingAsset The address of the underlying asset
     * @param pool The address of the associated pool
     * @param treasury The address of the treasury
     * @param incentivesController The address of the incentives controller for this pToken
     * @param pTokenDecimals The decimals of the underlying
     * @param pTokenName The name of the pToken
     * @param pTokenSymbol The symbol of the pToken
     * @param params A set of encoded parameters for additional initialization
     **/
    event Initialized(
        address indexed underlyingAsset,
        address indexed pool,
        address treasury,
        address incentivesController,
        uint8 pTokenDecimals,
        string pTokenName,
        string pTokenSymbol,
        bytes params
    );

    /**
     * @notice Initializes the pToken
     * @param pool The pool contract that is initializing this contract
     * @param treasury The address of the ParaSpace treasury, receiving the fees on this pToken
     * @param underlyingAsset The address of the underlying asset of this pToken (E.g. WETH for pWETH)
     * @param incentivesController The smart contract managing potential incentives distribution
     * @param pTokenDecimals The decimals of the pToken, same as the underlying asset's
     * @param pTokenName The name of the pToken
     * @param pTokenSymbol The symbol of the pToken
     * @param params A set of encoded parameters for additional initialization
     */
    function initialize(
        IPool pool,
        address treasury,
        address underlyingAsset,
        IRewardController incentivesController,
        uint8 pTokenDecimals,
        string calldata pTokenName,
        string calldata pTokenSymbol,
        bytes calldata params
    ) external;
}

// SPDX-License-Identifier: AGPL-3.0
pragma solidity ^0.8.0;

import {IERC20} from "../dependencies/openzeppelin/contracts/IERC20.sol";
import {IScaledBalanceToken} from "./IScaledBalanceToken.sol";
import {IInitializablePToken} from "./IInitializablePToken.sol";
import {IXTokenType} from "./IXTokenType.sol";
import {DataTypes} from "../protocol/libraries/types/DataTypes.sol";

/**
 * @title IPToken
 *
 * @notice Defines the basic interface for an PToken.
 **/
interface IPToken is
    IERC20,
    IScaledBalanceToken,
    IInitializablePToken,
    IXTokenType
{
    /**
     * @notice Mints `amount` xTokens to `user`
     * @param caller The address performing the mint
     * @param onBehalfOf The address of the user that will receive the minted xTokens
     * @param amount The amount of tokens getting minted
     * @param index The next liquidity index of the reserve
     * @return `true` if the the previous balance of the user was 0
     */
    function mint(
        address caller,
        address onBehalfOf,
        uint256 amount,
        uint256 index
    ) external returns (bool);

    /**
     * @notice Burns xTokens from `user` and sends the equivalent amount of underlying to `receiverOfUnderlying`
     * @dev In some instances, the mint event could be emitted from a burn transaction
     * if the amount to burn is less than the interest that the user accrued
     * @param from The address from which the xTokens will be burned
     * @param receiverOfUnderlying The address that will receive the underlying
     * @param amount The amount being burned
     * @param index The next liquidity index of the reserve
     **/
    function burn(
        address from,
        address receiverOfUnderlying,
        uint256 amount,
        uint256 index,
        DataTypes.TimeLockParams calldata timeLockParams
    ) external;

    /**
     * @notice Mints xTokens to the reserve treasury
     * @param amount The amount of tokens getting minted
     * @param index The next liquidity index of the reserve
     */
    function mintToTreasury(uint256 amount, uint256 index) external;

    /**
     * @notice Transfers xTokens in the event of a borrow being liquidated, in case the liquidators reclaims the xToken
     * @param from The address getting liquidated, current owner of the xTokens
     * @param to The recipient
     * @param value The amount of tokens getting transferred
     **/
    function transferOnLiquidation(
        address from,
        address to,
        uint256 value
    ) external;

    /**
     * @notice Transfers the underlying asset to `target`.
     * @dev Used by the Pool to transfer assets in borrow(), withdraw() and flashLoan()
     * @param user The recipient of the underlying
     * @param amount The amount getting transferred
     **/
    function transferUnderlyingTo(
        address user,
        uint256 amount,
        DataTypes.TimeLockParams calldata timeLockParams
    ) external;

    /**
     * @notice Handles the underlying received by the xToken after the transfer has been completed.
     * @dev The default implementation is empty as with standard ERC20 tokens, nothing needs to be done after the
     * transfer is concluded. However in the future there may be xTokens that allow for example to stake the underlying
     * to receive LM rewards. In that case, `handleRepayment()` would perform the staking of the underlying asset.
     * @param user The user executing the repayment
     * @param amount The amount getting repaid
     **/
    function handleRepayment(address user, uint256 amount) external;

    /**
     * @notice Allow passing a signed message to approve spending
     * @dev implements the permit function as for
     * https://github.com/ethereum/EIPs/blob/8a34d644aacf0f9f8f00815307fd7dd5da07655f/EIPS/eip-2612.md
     * @param owner The owner of the funds
     * @param spender The spender
     * @param value The amount
     * @param deadline The deadline timestamp, type(uint256).max for max deadline
     * @param v Signature param
     * @param s Signature param
     * @param r Signature param
     */
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

    /**
     * @notice Returns the address of the underlying asset of this xToken (E.g. WETH for pWETH)
     * @return The address of the underlying asset
     **/
    function UNDERLYING_ASSET_ADDRESS() external view returns (address);

    /**
     * @notice Returns the address of the ParaSpace treasury, receiving the fees on this xToken.
     * @return Address of the ParaSpace treasury
     **/
    function RESERVE_TREASURY_ADDRESS() external view returns (address);

    /**
     * @notice Get the domain separator for the token
     * @dev Return cached value if chainId matches cache, otherwise recomputes separator
     * @return The domain separator of the token at current chain
     */
    function DOMAIN_SEPARATOR() external view returns (bytes32);

    /**
     * @notice Returns the nonce for owner.
     * @param owner The address of the owner
     * @return The nonce of the owner
     **/
    function nonces(address owner) external view returns (uint256);

    /**
     * @notice Rescue and transfer tokens locked in this contract
     * @param token The address of the token
     * @param to The address of the recipient
     * @param amount The amount of token to transfer
     */
    function rescueTokens(
        address token,
        address to,
        uint256 amount
    ) external;

    function claimUnderlying(
        address timeLockV1,
        address cApeV1,
        address cApeV2,
        address apeCoin,
        uint256[] calldata agreementIds
    ) external returns (uint256);
}

// SPDX-License-Identifier: AGPL-3.0
pragma solidity ^0.8.0;

/******************************************************************************\
* EIP-2535: https://eips.ethereum.org/EIPS/eip-2535
/******************************************************************************/

interface IParaProxy {
    enum ProxyImplementationAction {
        Add,
        Replace,
        Remove
    }
    // Add=0, Replace=1, Remove=2

    struct ProxyImplementation {
        address implAddress;
        ProxyImplementationAction action;
        bytes4[] functionSelectors;
    }

    /// @notice Add/replace/remove any number of functions and optionally execute
    ///         a function with delegatecall
    /// @param _implementationParams Contains the implementation addresses and function selectors
    /// @param _init The address of the contract or implementation to execute _calldata
    /// @param _calldata A function call, including function selector and arguments
    ///                  _calldata is executed with delegatecall on _init
    function updateImplementation(
        ProxyImplementation[] calldata _implementationParams,
        address _init,
        bytes calldata _calldata
    ) external;

    event ImplementationUpdated(
        ProxyImplementation[] _implementationParams,
        address _init,
        bytes _calldata
    );
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

/******************************************************************************\
* EIP-2535 Diamonds: https://eips.ethereum.org/EIPS/eip-2535
/******************************************************************************/

// interfaces that are compatible with Diamond proxy loupe functions
interface IParaProxyInterfaces {
    /// These functions are expected to be called frequently
    /// by tools.

    struct Implementation {
        address implAddress;
        bytes4[] functionSelectors;
    }

    /// @notice Gets all facet addresses and their four byte function selectors.
    /// @return facets_ Implementation
    function facets() external view returns (Implementation[] memory facets_);

    /// @notice Gets all the function selectors supported by a specific facet.
    /// @param _facet The facet address.
    /// @return facetFunctionSelectors_
    function facetFunctionSelectors(address _facet)
        external
        view
        returns (bytes4[] memory facetFunctionSelectors_);

    /// @notice Get all the facet addresses used by a diamond.
    /// @return facetAddresses_
    function facetAddresses()
        external
        view
        returns (address[] memory facetAddresses_);

    /// @notice Gets the facet that supports the given selector.
    /// @dev If facet is not found return address(0).
    /// @param _functionSelector The function selector.
    /// @return facetAddress_ The facet address.
    function facetAddress(bytes4 _functionSelector)
        external
        view
        returns (address facetAddress_);
}

// SPDX-License-Identifier: AGPL-3.0
pragma solidity ^0.8.0;

import {IPoolCore} from "./IPoolCore.sol";
import {IPoolMarketplace} from "./IPoolMarketplace.sol";
import {IPoolParameters} from "./IPoolParameters.sol";
import {IParaProxyInterfaces} from "./IParaProxyInterfaces.sol";
import {IPoolPositionMover} from "./IPoolPositionMover.sol";
import "./IPoolApeStaking.sol";

/**
 * @title IPool
 *
 * @notice Defines the basic interface for an ParaSpace Pool.
 **/
interface IPool is
    IPoolCore,
    IPoolMarketplace,
    IPoolParameters,
    IPoolApeStaking,
    IParaProxyInterfaces,
    IPoolPositionMover
{

}

// SPDX-License-Identifier: AGPL-3.0
pragma solidity ^0.8.0;

import {DataTypes} from "../protocol/libraries/types/DataTypes.sol";
import {IParaProxy} from "../interfaces/IParaProxy.sol";

/**
 * @title IPoolAddressesProvider
 *
 * @notice Defines the basic interface for a Pool Addresses Provider.
 **/
interface IPoolAddressesProvider {
    /**
     * @dev Emitted when the market identifier is updated.
     * @param oldMarketId The old id of the market
     * @param newMarketId The new id of the market
     */
    event MarketIdSet(string indexed oldMarketId, string indexed newMarketId);

    /**
     * @dev Emitted when the pool is updated.
     * @param implementationParams The old address of the Pool
     * @param _init The new address to call upon upgrade
     * @param _calldata The calldata input for the call
     */
    event PoolUpdated(
        IParaProxy.ProxyImplementation[] indexed implementationParams,
        address _init,
        bytes _calldata
    );

    /**
     * @dev Emitted when the pool configurator is updated.
     * @param oldAddress The old address of the PoolConfigurator
     * @param newAddress The new address of the PoolConfigurator
     */
    event PoolConfiguratorUpdated(
        address indexed oldAddress,
        address indexed newAddress
    );

    /**
     * @dev Emitted when the WETH is updated.
     * @param oldAddress The old address of the WETH
     * @param newAddress The new address of the WETH
     */
    event WETHUpdated(address indexed oldAddress, address indexed newAddress);

    /**
     * @dev Emitted when the price oracle is updated.
     * @param oldAddress The old address of the PriceOracle
     * @param newAddress The new address of the PriceOracle
     */
    event PriceOracleUpdated(
        address indexed oldAddress,
        address indexed newAddress
    );

    /**
     * @dev Emitted when the ACL manager is updated.
     * @param oldAddress The old address of the ACLManager
     * @param newAddress The new address of the ACLManager
     */
    event ACLManagerUpdated(
        address indexed oldAddress,
        address indexed newAddress
    );

    /**
     * @dev Emitted when the ACL admin is updated.
     * @param oldAddress The old address of the ACLAdmin
     * @param newAddress The new address of the ACLAdmin
     */
    event ACLAdminUpdated(
        address indexed oldAddress,
        address indexed newAddress
    );

    /**
     * @dev Emitted when the price oracle sentinel is updated.
     * @param oldAddress The old address of the PriceOracleSentinel
     * @param newAddress The new address of the PriceOracleSentinel
     */
    event PriceOracleSentinelUpdated(
        address indexed oldAddress,
        address indexed newAddress
    );

    /**
     * @dev Emitted when the pool data provider is updated.
     * @param oldAddress The old address of the PoolDataProvider
     * @param newAddress The new address of the PoolDataProvider
     */
    event ProtocolDataProviderUpdated(
        address indexed oldAddress,
        address indexed newAddress
    );

    /**
     * @dev Emitted when a new proxy is created.
     * @param id The identifier of the proxy
     * @param proxyAddress The address of the created proxy contract
     * @param implementationAddress The address of the implementation contract
     */
    event ProxyCreated(
        bytes32 indexed id,
        address indexed proxyAddress,
        address indexed implementationAddress
    );

    /**
     * @dev Emitted when a new proxy is created.
     * @param id The identifier of the proxy
     * @param proxyAddress The address of the created proxy contract
     * @param implementationParams The params of the implementation update
     */
    event ParaProxyCreated(
        bytes32 indexed id,
        address indexed proxyAddress,
        IParaProxy.ProxyImplementation[] indexed implementationParams
    );

    /**
     * @dev Emitted when a new proxy is created.
     * @param id The identifier of the proxy
     * @param proxyAddress The address of the created proxy contract
     * @param implementationParams The params of the implementation update
     */
    event ParaProxyUpdated(
        bytes32 indexed id,
        address indexed proxyAddress,
        IParaProxy.ProxyImplementation[] indexed implementationParams
    );

    /**
     * @dev Emitted when a new non-proxied contract address is registered.
     * @param id The identifier of the contract
     * @param oldAddress The address of the old contract
     * @param newAddress The address of the new contract
     */
    event AddressSet(
        bytes32 indexed id,
        address indexed oldAddress,
        address indexed newAddress
    );

    /**
     * @dev Emitted when the implementation of the proxy registered with id is updated
     * @param id The identifier of the contract
     * @param proxyAddress The address of the proxy contract
     * @param oldImplementationAddress The address of the old implementation contract
     * @param newImplementationAddress The address of the new implementation contract
     */
    event AddressSetAsProxy(
        bytes32 indexed id,
        address indexed proxyAddress,
        address oldImplementationAddress,
        address indexed newImplementationAddress
    );

    /**
     * @dev Emitted when the marketplace registered is updated
     * @param id The identifier of the marketplace
     * @param marketplace The address of the marketplace contract
     * @param adapter The address of the marketplace adapter contract
     * @param operator The address of the marketplace transfer helper
     * @param paused Is the marketplace adapter paused
     */
    event MarketplaceUpdated(
        bytes32 indexed id,
        address indexed marketplace,
        address indexed adapter,
        address operator,
        bool paused
    );

    /**
     * @notice Returns the id of the ParaSpace market to which this contract points to.
     * @return The market id
     **/
    function getMarketId() external view returns (string memory);

    /**
     * @notice Associates an id with a specific PoolAddressesProvider.
     * @dev This can be used to create an onchain registry of PoolAddressesProviders to
     * identify and validate multiple ParaSpace markets.
     * @param newMarketId The market id
     */
    function setMarketId(string calldata newMarketId) external;

    /**
     * @notice Returns an address by its identifier.
     * @dev The returned address might be an EOA or a contract, potentially proxied
     * @dev It returns ZERO if there is no registered address with the given id
     * @param id The id
     * @return The address of the registered for the specified id
     */
    function getAddress(bytes32 id) external view returns (address);

    /**
     * @notice General function to update the implementation of a proxy registered with
     * certain `id`. If there is no proxy registered, it will instantiate one and
     * set as implementation the `newImplementationAddress`.
     * @dev IMPORTANT Use this function carefully, only for ids that don't have an explicit
     * setter function, in order to avoid unexpected consequences
     * @param id The id
     * @param newImplementationAddress The address of the new implementation
     */
    function setAddressAsProxy(bytes32 id, address newImplementationAddress)
        external;

    /**
     * @notice Sets an address for an id replacing the address saved in the addresses map.
     * @dev IMPORTANT Use this function carefully, as it will do a hard replacement
     * @param id The id
     * @param newAddress The address to set
     */
    function setAddress(bytes32 id, address newAddress) external;

    /**
     * @notice Returns the address of the Pool proxy.
     * @return The Pool proxy address
     **/
    function getPool() external view returns (address);

    /**
     * @notice Updates the implementation of the Pool, or creates a proxy
     * setting the new `pool` implementation when the function is called for the first time.
     * @param implementationParams Contains the implementation addresses and function selectors
     * @param _init The address of the contract or implementation to execute _calldata
     * @param _calldata A function call, including function selector and arguments
     *                  _calldata is executed with delegatecall on _init
     **/
    function updatePoolImpl(
        IParaProxy.ProxyImplementation[] calldata implementationParams,
        address _init,
        bytes calldata _calldata
    ) external;

    /**
     * @notice Returns the address of the PoolConfigurator proxy.
     * @return The PoolConfigurator proxy address
     **/
    function getPoolConfigurator() external view returns (address);

    /**
     * @notice Updates the implementation of the PoolConfigurator, or creates a proxy
     * setting the new `PoolConfigurator` implementation when the function is called for the first time.
     * @param newPoolConfiguratorImpl The new PoolConfigurator implementation
     **/
    function setPoolConfiguratorImpl(address newPoolConfiguratorImpl) external;

    /**
     * @notice Returns the address of the price oracle.
     * @return The address of the PriceOracle
     */
    function getPriceOracle() external view returns (address);

    /**
     * @notice Updates the address of the price oracle.
     * @param newPriceOracle The address of the new PriceOracle
     */
    function setPriceOracle(address newPriceOracle) external;

    /**
     * @notice Returns the address of the ACL manager.
     * @return The address of the ACLManager
     */
    function getACLManager() external view returns (address);

    /**
     * @notice Updates the address of the ACL manager.
     * @param newAclManager The address of the new ACLManager
     **/
    function setACLManager(address newAclManager) external;

    /**
     * @notice Returns the address of the ACL admin.
     * @return The address of the ACL admin
     */
    function getACLAdmin() external view returns (address);

    /**
     * @notice Updates the address of the ACL admin.
     * @param newAclAdmin The address of the new ACL admin
     */
    function setACLAdmin(address newAclAdmin) external;

    /**
     * @notice Returns the address of the price oracle sentinel.
     * @return The address of the PriceOracleSentinel
     */
    function getPriceOracleSentinel() external view returns (address);

    /**
     * @notice Updates the address of the price oracle sentinel.
     * @param newPriceOracleSentinel The address of the new PriceOracleSentinel
     **/
    function setPriceOracleSentinel(address newPriceOracleSentinel) external;

    /**
     * @notice Returns the address of the data provider.
     * @return The address of the DataProvider
     */
    function getPoolDataProvider() external view returns (address);

    /**
     * @notice Returns the address of the Wrapped ETH.
     * @return The address of the Wrapped ETH
     */
    function getWETH() external view returns (address);

    /**
     * @notice Returns the info of the marketplace.
     * @return The info of the marketplace
     */
    function getMarketplace(bytes32 id)
        external
        view
        returns (DataTypes.Marketplace memory);

    /**
     * @notice Updates the address of the data provider.
     * @param newDataProvider The address of the new DataProvider
     **/
    function setProtocolDataProvider(address newDataProvider) external;

    /**
     * @notice Updates the address of the WETH.
     * @param newWETH The address of the new WETH
     **/
    function setWETH(address newWETH) external;

    /**
     * @notice Updates the info of the marketplace.
     * @param marketplace The address of the marketplace
     *  @param adapter The contract which handles marketplace logic
     * @param operator The contract which operates users' tokens
     **/
    function setMarketplace(
        bytes32 id,
        address marketplace,
        address adapter,
        address operator,
        bool paused
    ) external;
}

// SPDX-License-Identifier: AGPL-3.0
pragma solidity ^0.8.0;

import "../dependencies/yoga-labs/ApeCoinStaking.sol";

/**
 * @title IPoolApeStaking
 *
 * @notice Defines the basic interface for an ParaSpace Ape Staking Pool.
 **/
interface IPoolApeStaking {
    struct StakingInfo {
        // Contract address of BAYC/MAYC
        address nftAsset;
        // address of borrowing asset, can be Ape or cApe
        address borrowAsset;
        // Borrow amount of Ape from lending pool
        uint256 borrowAmount;
        // Cash amount of Ape from user wallet
        uint256 cashAmount;
    }

    /**
     * @notice Deposit ape coin to BAYC/MAYC pool or BAKC pool
     * @param stakingInfo Detail info of the staking
     * @param _nfts Array of BAYC/MAYC NFT's with staked amounts
     * @param _nftPairs Array of Paired BAYC/MAYC NFT's with staked amounts
     * @dev Need check User health factor > 1.
     */
    function borrowApeAndStake(
        StakingInfo calldata stakingInfo,
        ApeCoinStaking.SingleNft[] calldata _nfts,
        ApeCoinStaking.PairNftDepositWithAmount[] calldata _nftPairs
    ) external;

    /**
     * @notice Withdraw staked ApeCoin from the BAYC/MAYC pool
     * @param nftAsset Contract address of BAYC/MAYC
     * @param _nfts Array of BAYC/MAYC NFT's with staked amounts
     * @dev Need check User health factor > 1.
     */
    function withdrawApeCoin(
        address nftAsset,
        ApeCoinStaking.SingleNft[] calldata _nfts
    ) external;

    /**
     * @notice Claim rewards for array of tokenIds from the BAYC/MAYC pool
     * @param nftAsset Contract address of BAYC/MAYC
     * @param _nfts Array of NFTs owned and committed by the msg.sender
     * @dev Need check User health factor > 1.
     */
    function claimApeCoin(address nftAsset, uint256[] calldata _nfts) external;

    /**
     * @notice Withdraw staked ApeCoin from the BAKC pool
     * @param nftAsset Contract address of BAYC/MAYC
     * @param _nftPairs Array of Paired BAYC/MAYC NFT's with staked amounts
     * @dev Need check User health factor > 1.
     */
    function withdrawBAKC(
        address nftAsset,
        ApeCoinStaking.PairNftWithdrawWithAmount[] memory _nftPairs
    ) external;

    /**
     * @notice Claim rewards for array of tokenIds from the BAYC/MAYC pool
     * @param nftAsset Contract address of BAYC/MAYC
     * @param _nftPairs Array of Paired BAYC/MAYC NFT's
     * @dev Need check User health factor > 1.
     */
    function claimBAKC(
        address nftAsset,
        ApeCoinStaking.PairNft[] calldata _nftPairs
    ) external;

    /**
     * @notice Unstake user Ape coin staking position and repay user debt
     * @param nftAsset Contract address of BAYC/MAYC
     * @param tokenId Token id of the ape staking position on
     * @dev Need check User health factor > 1.
     */
    function unstakeApePositionAndRepay(address nftAsset, uint256 tokenId)
        external;

    /**
     * @notice repay asset and supply asset for user
     * @param underlyingAsset Contract address of BAYC/MAYC
     * @param onBehalfOf The beneficiary of the repay and supply
     * @dev Convenient callback function for unstakeApePositionAndRepay. Only NToken of BAYC/MAYC can call this.
     */
    function repayAndSupply(
        address underlyingAsset,
        address onBehalfOf,
        uint256 totalAmount
    ) external;

    /**
     * @notice Claim user Ape coin reward and deposit to ape compound to get cApe, then deposit cApe to Lending pool for user
     * @param nftAsset Contract address of BAYC/MAYC
     * @param users array of user address
     * @param tokenIds array of user tokenId array
     */
    function claimApeAndCompound(
        address nftAsset,
        address[] calldata users,
        uint256[][] calldata tokenIds
    ) external;

    /**
     * @notice Claim user BAKC paired Ape coin reward and deposit to ape compound to get cApe, then deposit cApe to Lending pool for user
     * @param nftAsset Contract address of BAYC/MAYC
     * @param users array of user address
     * @param _nftPairs Array of Paired BAYC/MAYC NFT's
     */
    function claimPairedApeAndCompound(
        address nftAsset,
        address[] calldata users,
        ApeCoinStaking.PairNft[][] calldata _nftPairs
    ) external;

    /**
     * @notice get current incentive fee rate for claiming ape position reward to compound
     */
    function getApeCompoundFeeRate() external returns (uint256);
}

// SPDX-License-Identifier: AGPL-3.0
pragma solidity ^0.8.0;

import {IPoolAddressesProvider} from "./IPoolAddressesProvider.sol";
import {ITimeLock} from "./ITimeLock.sol";
import {DataTypes} from "../protocol/libraries/types/DataTypes.sol";

/**
 * @title IPool
 *
 * @notice Defines the basic interface for an ParaSpace Pool.
 **/
interface IPoolCore {
    /**
     * @dev Emitted on supply()
     * @param reserve The address of the underlying asset of the reserve
     * @param user The address initiating the supply
     * @param onBehalfOf The beneficiary of the supply, receiving the xTokens
     * @param amount The amount supplied
     * @param referralCode The referral code used
     **/
    event Supply(
        address indexed reserve,
        address user,
        address indexed onBehalfOf,
        uint256 amount,
        uint16 indexed referralCode
    );

    event SupplyERC721(
        address indexed reserve,
        address user,
        address indexed onBehalfOf,
        DataTypes.ERC721SupplyParams[] tokenData,
        uint16 indexed referralCode,
        bool fromNToken
    );

    /**
     * @dev Emitted on withdraw()
     * @param reserve The address of the underlying asset being withdrawn
     * @param user The address initiating the withdrawal, owner of xTokens
     * @param to The address that will receive the underlying asset
     * @param amount The amount to be withdrawn
     **/
    event Withdraw(
        address indexed reserve,
        address indexed user,
        address indexed to,
        uint256 amount
    );

    /**
     * @dev Emitted on withdrawERC721()
     * @param reserve The address of the underlying asset being withdrawn
     * @param user The address initiating the withdrawal, owner of xTokens
     * @param to The address that will receive the underlying asset
     * @param tokenIds The tokenIds to be withdrawn
     **/
    event WithdrawERC721(
        address indexed reserve,
        address indexed user,
        address indexed to,
        uint256[] tokenIds
    );

    /**
     * @dev Emitted on borrow() and flashLoan() when debt needs to be opened
     * @param reserve The address of the underlying asset being borrowed
     * @param user The address of the user initiating the borrow(), receiving the funds on borrow() or just
     * initiator of the transaction on flashLoan()
     * @param onBehalfOf The address that will be getting the debt
     * @param amount The amount borrowed out
     * @param borrowRate The numeric rate at which the user has borrowed, expressed in ray
     * @param referralCode The referral code used
     **/
    event Borrow(
        address indexed reserve,
        address user,
        address indexed onBehalfOf,
        uint256 amount,
        uint256 borrowRate,
        uint16 indexed referralCode
    );

    /**
     * @dev Emitted on repay()
     * @param reserve The address of the underlying asset of the reserve
     * @param user The beneficiary of the repayment, getting his debt reduced
     * @param repayer The address of the user initiating the repay(), providing the funds
     * @param amount The amount repaid
     * @param usePTokens True if the repayment is done using xTokens, `false` if done with underlying asset directly
     **/
    event Repay(
        address indexed reserve,
        address indexed user,
        address indexed repayer,
        uint256 amount,
        bool usePTokens
    );
    /**
     * @dev Emitted on setUserUseERC20AsCollateral()
     * @param reserve The address of the underlying asset of the reserve
     * @param user The address of the user enabling the usage as collateral
     **/
    event ReserveUsedAsCollateralEnabled(
        address indexed reserve,
        address indexed user
    );

    /**
     * @dev Emitted on setUserUseERC20AsCollateral()
     * @param reserve The address of the underlying asset of the reserve
     * @param user The address of the user enabling the usage as collateral
     **/
    event ReserveUsedAsCollateralDisabled(
        address indexed reserve,
        address indexed user
    );

    /**
     * @dev Emitted when a borrower is liquidated.
     * @param collateralAsset The address of the underlying asset used as collateral, to receive as result of the liquidation
     * @param liquidationAsset The address of the underlying borrowed asset to be repaid with the liquidation
     * @param borrower The address of the borrower getting liquidated
     * @param liquidationAmount The debt amount of borrowed `asset` the liquidator wants to cover
     * @param liquidatedCollateralAmount The amount of collateral received by the liquidator
     * @param liquidator The address of the liquidator
     * @param receivePToken True if the liquidators wants to receive the collateral xTokens, `false` if he wants
     * to receive the underlying collateral asset directly
     **/
    event LiquidateERC20(
        address indexed collateralAsset,
        address indexed liquidationAsset,
        address indexed borrower,
        uint256 liquidationAmount,
        uint256 liquidatedCollateralAmount,
        address liquidator,
        bool receivePToken
    );

    /**
     * @dev Emitted when a borrower's ERC721 asset is liquidated.
     * @param collateralAsset The address of the underlying asset used as collateral, to receive as result of the liquidation
     * @param liquidationAsset The address of the underlying borrowed asset to be repaid with the liquidation
     * @param borrower The address of the borrower getting liquidated
     * @param liquidationAmount The debt amount of borrowed `asset` the liquidator wants to cover
     * @param liquidatedCollateralTokenId The token id of ERC721 asset received by the liquidator
     * @param liquidator The address of the liquidator
     * @param receiveNToken True if the liquidators wants to receive the collateral NTokens, `false` if he wants
     * to receive the underlying collateral asset directly
     **/
    event LiquidateERC721(
        address indexed collateralAsset,
        address indexed liquidationAsset,
        address indexed borrower,
        uint256 liquidationAmount,
        uint256 liquidatedCollateralTokenId,
        address liquidator,
        bool receiveNToken
    );

    /**
     * @dev Emitted on flashClaim
     * @param target The address of the flash loan receiver contract
     * @param initiator The address initiating the flash claim
     * @param nftAsset address of the underlying asset of NFT
     * @param tokenId The token id of the asset being flash borrowed
     **/
    event FlashClaim(
        address indexed target,
        address indexed initiator,
        address indexed nftAsset,
        uint256 tokenId
    );

    /**
     * @dev Event triggered when a new auction is started for a collateral asset.
     * @param user The address of the user who started the auction.
     * @param collateralAsset The address of the collateral asset for the auction.
     * @param collateralTokenId The ID of the collateral token for the auction.
     */
    event AuctionStarted(
        address indexed user,
        address indexed collateralAsset,
        uint256 indexed collateralTokenId
    );

    /**
     * @dev Event triggered when an auction for a collateral asset ends.
     * @param user The address of the user who owns the collateral asset.
     * @param collateralAsset The address of the collateral asset for the auction.
     * @param collateralTokenId The ID of the collateral token for the auction.
     */
    event AuctionEnded(
        address indexed user,
        address indexed collateralAsset,
        uint256 indexed collateralTokenId
    );

    /**
     * @dev Allows smart contracts to access the tokens within one transaction, as long as the tokens taken is returned.
     *
     * Requirements:
     *  - `nftTokenIds` must exist.
     *
     * @param receiverAddress The address of the contract receiving the tokens, implementing the IFlashClaimReceiver interface
     * @param nftAssets addresses of the underlying asset of NFT
     * @param nftTokenIds token ids of the underlying asset
     * @param params Variadic packed params to pass to the receiver as extra information
     */
    function flashClaim(
        address receiverAddress,
        address[] calldata nftAssets,
        uint256[][] calldata nftTokenIds,
        bytes calldata params
    ) external;

    /**
     * @notice Supplies an `amount` of underlying asset into the reserve, receiving in return overlying xTokens.
     * - E.g. User supplies 100 USDC and gets in return 100 pUSDC
     * @param asset The address of the underlying asset to supply
     * @param amount The amount to be supplied
     * @param onBehalfOf The address that will receive the xTokens, same as msg.sender if the user
     *   wants to receive them on his own wallet, or a different address if the beneficiary of xTokens
     *   is a different wallet
     * @param referralCode Code used to register the integrator originating the operation, for potential rewards.
     *   0 if the action is executed directly by the user, without any middle-man
     **/
    function supply(
        address asset,
        uint256 amount,
        address onBehalfOf,
        uint16 referralCode
    ) external;

    /**
     * @notice Supplies multiple `tokenIds` of underlying ERC721 asset into the reserve, receiving in return overlying nTokens.
     * - E.g. User supplies 2 BAYC and gets in return 2 nBAYC
     * @param asset The address of the underlying asset to supply
     * @param tokenData The list of tokenIds and their collateral configs to be supplied
     * @param onBehalfOf The address that will receive the xTokens, same as msg.sender if the user
     *   wants to receive them on his own wallet, or a different address if the beneficiary of xTokens
     *   is a different wallet
     * @param referralCode Code used to register the integrator originating the operation, for potential rewards.
     *   0 if the action is executed directly by the user, without any middle-man
     **/
    function supplyERC721(
        address asset,
        DataTypes.ERC721SupplyParams[] calldata tokenData,
        address onBehalfOf,
        uint16 referralCode
    ) external;

    /**
     * @notice Same as `supplyERC721` but this can only be called by NToken contract and doesn't require sending the underlying asset.
     * @param asset The address of the underlying asset to supply
     * @param tokenData The list of tokenIds and their collateral configs to be supplied
     * @param onBehalfOf The address that will receive the xTokens
     **/
    function supplyERC721FromNToken(
        address asset,
        DataTypes.ERC721SupplyParams[] calldata tokenData,
        address onBehalfOf
    ) external;

    /**
     * @notice Supply with transfer approval of asset to be supplied done via permit function
     * see: https://eips.ethereum.org/EIPS/eip-2612 and https://eips.ethereum.org/EIPS/eip-713
     * @param asset The address of the underlying asset to supply
     * @param amount The amount to be supplied
     * @param onBehalfOf The address that will receive the xTokens, same as msg.sender if the user
     *   wants to receive them on his own wallet, or a different address if the beneficiary of xTokens
     *   is a different wallet
     * @param deadline The deadline timestamp that the permit is valid
     * @param referralCode Code used to register the integrator originating the operation, for potential rewards.
     *   0 if the action is executed directly by the user, without any middle-man
     * @param permitV The V parameter of ERC712 permit sig
     * @param permitR The R parameter of ERC712 permit sig
     * @param permitS The S parameter of ERC712 permit sig
     **/
    function supplyWithPermit(
        address asset,
        uint256 amount,
        address onBehalfOf,
        uint16 referralCode,
        uint256 deadline,
        uint8 permitV,
        bytes32 permitR,
        bytes32 permitS
    ) external;

    /**
     * @notice Withdraws an `amount` of underlying asset from the reserve, burning the equivalent xTokens owned
     * E.g. User has 100 pUSDC, calls withdraw() and receives 100 USDC, burning the 100 pUSDC
     * @param asset The address of the underlying asset to withdraw
     * @param amount The underlying amount to be withdrawn
     *   - Send the value type(uint256).max in order to withdraw the whole xToken balance
     * @param to The address that will receive the underlying, same as msg.sender if the user
     *   wants to receive it on his own wallet, or a different address if the beneficiary is a
     *   different wallet
     * @return The final amount withdrawn
     **/
    function withdraw(
        address asset,
        uint256 amount,
        address to
    ) external returns (uint256);

    /**
     * @notice Withdraws multiple `tokenIds` of underlying ERC721  asset from the reserve, burning the equivalent nTokens owned
     * E.g. User has 2 nBAYC, calls withdraw() and receives 2 BAYC, burning the 2 nBAYC
     * @param asset The address of the underlying asset to withdraw
     * @param tokenIds The underlying tokenIds to be withdrawn
     *   - Send the value type(uint256).max in order to withdraw the whole xToken balance
     * @param to The address that will receive the underlying, same as msg.sender if the user
     *   wants to receive it on his own wallet, or a different address if the beneficiary is a
     *   different wallet
     * @return The final amount withdrawn
     **/
    function withdrawERC721(
        address asset,
        uint256[] calldata tokenIds,
        address to
    ) external returns (uint256);

    /**
     * @notice Decreases liquidity for underlying Uniswap V3 NFT LP and validates
     * that the user respects liquidation checks.
     * @param asset The asset address of uniswapV3
     * @param tokenId The id of the erc721 token
     * @param liquidityDecrease The amount of liquidity to remove of LP
     * @param amount0Min The minimum amount to remove of token0
     * @param amount1Min The minimum amount to remove of token1
     * @param receiveEthAsWeth If convert weth to ETH
     */
    function decreaseUniswapV3Liquidity(
        address asset,
        uint256 tokenId,
        uint128 liquidityDecrease,
        uint256 amount0Min,
        uint256 amount1Min,
        bool receiveEthAsWeth
    ) external;

    /**
     * @notice Allows users to borrow a specific `amount` of the reserve underlying asset, provided that the borrower
     * already supplied enough collateral, or he was given enough allowance by a credit delegator on the
     * corresponding debt token (VariableDebtToken)
     * - E.g. User borrows 100 USDC passing as `onBehalfOf` his own address, receiving the 100 USDC in his wallet
     *   and 100 stable/variable debt tokens
     * @param asset The address of the underlying asset to borrow
     * @param amount The amount to be borrowed
     * @param referralCode The code used to register the integrator originating the operation, for potential rewards.
     *   0 if the action is executed directly by the user, without any middle-man
     * @param onBehalfOf The address of the user who will receive the debt. Should be the address of the borrower itself
     * calling the function if he wants to borrow against his own collateral, or the address of the credit delegator
     * if he has been given credit delegation allowance
     **/
    function borrow(
        address asset,
        uint256 amount,
        uint16 referralCode,
        address onBehalfOf
    ) external;

    /**
     * @notice Repays a borrowed `amount` on a specific reserve, burning the equivalent debt tokens owned
     * - E.g. User repays 100 USDC, burning 100 variable/stable debt tokens of the `onBehalfOf` address
     * @param asset The address of the borrowed underlying asset previously borrowed
     * @param amount The amount to repay
     * - Send the value type(uint256).max in order to repay the whole debt for `asset` on the specific `debtMode`
     * @param onBehalfOf The address of the user who will get his debt reduced/removed. Should be the address of the
     * user calling the function if he wants to reduce/remove his own debt, or the address of any other
     * other borrower whose debt should be removed
     * @return The final amount repaid
     **/
    function repay(
        address asset,
        uint256 amount,
        address onBehalfOf
    ) external returns (uint256);

    /**
     * @notice Repays a borrowed `amount` on a specific reserve using the reserve xTokens, burning the
     * equivalent debt tokens
     * - E.g. User repays 100 USDC using 100 pUSDC, burning 100 variable/stable debt tokens
     * @dev  Passing uint256.max as amount will clean up any residual xToken dust balance, if the user xToken
     * balance is not enough to cover the whole debt
     * @param asset The address of the borrowed underlying asset previously borrowed
     * @param amount The amount to repay
     * - Send the value type(uint256).max in order to repay the whole debt for `asset` on the specific `debtMode`
     * @return The final amount repaid
     **/
    function repayWithPTokens(address asset, uint256 amount)
        external
        returns (uint256);

    /**
     * @notice Repay with transfer approval of asset to be repaid done via permit function
     * see: https://eips.ethereum.org/EIPS/eip-2612 and https://eips.ethereum.org/EIPS/eip-713
     * @param asset The address of the borrowed underlying asset previously borrowed
     * @param amount The amount to repay
     * - Send the value type(uint256).max in order to repay the whole debt for `asset` on the specific `debtMode`
     * @param onBehalfOf Address of the user who will get his debt reduced/removed. Should be the address of the
     * user calling the function if he wants to reduce/remove his own debt, or the address of any other
     * other borrower whose debt should be removed
     * @param deadline The deadline timestamp that the permit is valid
     * @param permitV The V parameter of ERC712 permit sig
     * @param permitR The R parameter of ERC712 permit sig
     * @param permitS The S parameter of ERC712 permit sig
     * @return The final amount repaid
     **/
    function repayWithPermit(
        address asset,
        uint256 amount,
        address onBehalfOf,
        uint256 deadline,
        uint8 permitV,
        bytes32 permitR,
        bytes32 permitS
    ) external returns (uint256);

    /**
     * @notice Allows suppliers to enable/disable a specific supplied asset as collateral
     * @param asset The address of the underlying asset supplied
     * @param useAsCollateral True if the user wants to use the supply as collateral, false otherwise
     **/
    function setUserUseERC20AsCollateral(address asset, bool useAsCollateral)
        external;

    /**
     * @notice Allows suppliers to enable/disable a specific supplied ERC721 asset with a tokenID as collateral
     * @param asset The address of the underlying asset supplied
     * @param tokenIds the ids of the supplied ERC721 token
     * @param useAsCollateral True if the user wants to use the supply as collateral, false otherwise
     **/
    function setUserUseERC721AsCollateral(
        address asset,
        uint256[] calldata tokenIds,
        bool useAsCollateral
    ) external;

    /**
     * @notice Function to liquidate a non-healthy position collateral-wise, with Health Factor below 1
     * - The caller (liquidator) covers `liquidationAmount` amount of debt of the user getting liquidated, and receives
     *   a proportionally amount of the `collateralAsset` plus a bonus to cover market risk
     * @param collateralAsset The address of the underlying asset used as collateral, to receive as result of the liquidation
     * @param liquidationAsset The address of the underlying borrowed asset to be repaid with the liquidation
     * @param user The address of the borrower getting liquidated
     * @param liquidationAmount The debt amount of borrowed `asset` the liquidator wants to cover
     * @param receivePToken True if the liquidators wants to receive the collateral xTokens, `false` if he wants
     * to receive the underlying collateral asset directly
     **/
    function liquidateERC20(
        address collateralAsset,
        address liquidationAsset,
        address user,
        uint256 liquidationAmount,
        bool receivePToken
    ) external payable;

    function liquidateERC721(
        address collateralAsset,
        address user,
        uint256 collateralTokenId,
        uint256 liquidationAmount,
        bool receiveNToken
    ) external payable;

    /**
     * @notice Start the auction on user's specific NFT collateral
     * @param user The address of the user
     * @param collateralAsset The address of the NFT collateral
     * @param collateralTokenId The tokenId of the NFT collateral
     **/
    function startAuction(
        address user,
        address collateralAsset,
        uint256 collateralTokenId
    ) external;

    /**
     * @notice End specific user's auction
     * @param user The address of the user
     * @param collateralAsset The address of the NFT collateral
     * @param collateralTokenId The tokenId of the NFT collateral
     **/
    function endAuction(
        address user,
        address collateralAsset,
        uint256 collateralTokenId
    ) external;

    /**
     * @notice Returns the configuration of the user across all the reserves
     * @param user The user address
     * @return The configuration of the user
     **/
    function getUserConfiguration(address user)
        external
        view
        returns (DataTypes.UserConfigurationMap memory);

    /**
     * @notice Returns the configuration of the reserve
     * @param asset The address of the underlying asset of the reserve
     * @return The configuration of the reserve
     **/
    function getConfiguration(address asset)
        external
        view
        returns (DataTypes.ReserveConfigurationMap memory);

    /**
     * @notice Returns the normalized income normalized income of the reserve
     * @param asset The address of the underlying asset of the reserve
     * @return The reserve's normalized income
     */
    function getReserveNormalizedIncome(address asset)
        external
        view
        returns (uint256);

    /**
     * @notice Returns the normalized variable debt per unit of asset
     * @param asset The address of the underlying asset of the reserve
     * @return The reserve normalized variable debt
     */
    function getReserveNormalizedVariableDebt(address asset)
        external
        view
        returns (uint256);

    /**
     * @notice Returns the state and configuration of the reserve
     * @param asset The address of the underlying asset of the reserve
     * @return The state and configuration data of the reserve
     **/
    function getReserveData(address asset)
        external
        view
        returns (DataTypes.ReserveData memory);

    function getReserveXToken(address asset) external view returns (address);

    /**
     * @notice Validates and finalizes an PToken transfer
     * @dev Only callable by the overlying xToken of the `asset`
     * @param asset The address of the underlying asset of the xToken
     * @param from The user from which the xTokens are transferred
     * @param to The user receiving the xTokens
     * @param amount The amount being transferred/withdrawn
     * @param balanceFromBefore The xToken balance of the `from` user before the transfer
     * @param balanceToBefore The xToken balance of the `to` user before the transfer
     */
    function finalizeTransfer(
        address asset,
        address from,
        address to,
        bool usedAsCollateral,
        uint256 amount,
        uint256 balanceFromBefore,
        uint256 balanceToBefore
    ) external;

    /**
     * @notice Validates and finalizes an NToken transfer
     * @dev Only callable by the overlying xToken of the `asset`
     * @param asset The address of the underlying asset of the xToken
     * @param tokenId The tokenId of the ERC721 asset
     * @param from The user from which the xTokens are transferred
     * @param to The user receiving the xTokens
     * @param balanceFromBefore The xToken balance of the `from` user before the transfer
     */
    function finalizeTransferERC721(
        address asset,
        uint256 tokenId,
        address from,
        address to,
        bool usedAsCollateral,
        uint256 balanceFromBefore
    ) external;

    /**
     * @notice Returns the list of the underlying assets of all the initialized reserves
     * @dev It does not include dropped reserves
     * @return The addresses of the underlying assets of the initialized reserves
     **/
    function getReservesList() external view returns (address[] memory);

    /**
     * @notice Returns the address of the underlying asset of a reserve by the reserve id as stored in the DataTypes.ReserveData struct
     * @param id The id of the reserve as stored in the DataTypes.ReserveData struct
     * @return The address of the reserve associated with id
     **/
    function getReserveAddressById(uint16 id) external view returns (address);

    /**
     * @notice Returns the auction related data of specific asset collection and token id.
     * @param ntokenAsset The address of ntoken
     * @param tokenId The token id which is currently auctioned for liquidation
     * @return The auction related data of the corresponding (ntokenAsset, tokenId)
     */
    function getAuctionData(address ntokenAsset, uint256 tokenId)
        external
        view
        returns (DataTypes.AuctionData memory);

    // function getAuctionData(address user, address) external view returns (DataTypes.AuctionData memory);
    /**
     * @notice Returns the PoolAddressesProvider connected to this contract
     * @return The address of the PoolAddressesProvider
     **/
    function ADDRESSES_PROVIDER()
        external
        view
        returns (IPoolAddressesProvider);

    function TIME_LOCK() external view returns (ITimeLock);

    /**
     * @notice Returns the maximum number of reserves supported to be listed in this Pool
     * @return The maximum number of reserves supported
     */
    function MAX_NUMBER_RESERVES() external view returns (uint16);

    /**
     * @notice Returns the auction recovery health factor
     * @return The auction recovery health factor
     */
    function AUCTION_RECOVERY_HEALTH_FACTOR() external view returns (uint64);
}

// SPDX-License-Identifier: AGPL-3.0
pragma solidity ^0.8.0;

import {IPoolAddressesProvider} from "./IPoolAddressesProvider.sol";
import {DataTypes} from "../protocol/libraries/types/DataTypes.sol";

/**
 * @title IPool
 *
 * @notice Defines the basic interface for an ParaSpace Pool.
 **/
interface IPoolMarketplace {
    event BuyWithCredit(
        bytes32 indexed marketplaceId,
        DataTypes.OrderInfo orderInfo,
        DataTypes.Credit credit
    );

    event AcceptBidWithCredit(
        bytes32 indexed marketplaceId,
        DataTypes.OrderInfo orderInfo,
        DataTypes.Credit credit
    );

    /**
     * @notice Implements the buyWithCredit feature. BuyWithCredit allows users to buy NFT from various NFT marketplaces
     * including OpenSea, LooksRare, X2Y2 etc. Users can use NFT's credit and will need to pay at most (1 - LTV) * $NFT
     * @dev
     * @param marketplaceId The marketplace identifier
     * @param payload The encoded parameters to be passed to marketplace contract (selector eliminated)
     * @param credit The credit that user would like to use for this purchase
     * @param referralCode The referral code used
     */
    function buyWithCredit(
        bytes32 marketplaceId,
        bytes calldata payload,
        DataTypes.Credit calldata credit,
        uint16 referralCode
    ) external payable;

    /**
     * @notice Implements the batchBuyWithCredit feature. BuyWithCredit allows users to buy NFT from various NFT marketplaces
     * including OpenSea, LooksRare, X2Y2 etc. Users can use NFT's credit and will need to pay at most (1 - LTV) * $NFT
     * @dev marketplaceIds[i] should match payload[i] and credits[i]
     * @param marketplaceIds The marketplace identifiers
     * @param payloads The encoded parameters to be passed to marketplace contract (selector eliminated)
     * @param credits The credits that user would like to use for this purchase
     * @param referralCode The referral code used
     */
    function batchBuyWithCredit(
        bytes32[] calldata marketplaceIds,
        bytes[] calldata payloads,
        DataTypes.Credit[] calldata credits,
        uint16 referralCode
    ) external payable;

    /**
     * @notice Implements the acceptBidWithCredit feature. AcceptBidWithCredit allows users to
     * accept a leveraged bid on ParaSpace NFT marketplace. Users can submit leveraged bid and pay
     * at most (1 - LTV) * $NFT
     * @dev The nft receiver just needs to do the downpayment
     * @param marketplaceId The marketplace identifier
     * @param payload The encoded parameters to be passed to marketplace contract (selector eliminated)
     * @param credit The credit that user would like to use for this purchase
     * @param onBehalfOf Address of the user who will sell the NFT
     * @param referralCode The referral code used
     */
    function acceptBidWithCredit(
        bytes32 marketplaceId,
        bytes calldata payload,
        DataTypes.Credit calldata credit,
        address onBehalfOf,
        uint16 referralCode
    ) external;

    /**
     * @notice Implements the batchAcceptBidWithCredit feature. AcceptBidWithCredit allows users to
     * accept a leveraged bid on ParaSpace NFT marketplace. Users can submit leveraged bid and pay
     * at most (1 - LTV) * $NFT
     * @dev The nft receiver just needs to do the downpayment
     * @param marketplaceIds The marketplace identifiers
     * @param payloads The encoded parameters to be passed to marketplace contract (selector eliminated)
     * @param credits The credits that the makers have approved to use for this purchase
     * @param onBehalfOf Address of the user who will sell the NFTs
     * @param referralCode The referral code used
     */
    function batchAcceptBidWithCredit(
        bytes32[] calldata marketplaceIds,
        bytes[] calldata payloads,
        DataTypes.Credit[] calldata credits,
        address onBehalfOf,
        uint16 referralCode
    ) external;
}

// SPDX-License-Identifier: AGPL-3.0
pragma solidity ^0.8.0;

import {IPoolAddressesProvider} from "./IPoolAddressesProvider.sol";
import {DataTypes} from "../protocol/libraries/types/DataTypes.sol";

/**
 * @title IPool
 *
 * @notice Defines the basic interface for an ParaSpace Pool.
 **/
interface IPoolParameters {
    /**
     * @dev Emitted when the state of a reserve is updated.
     * @param reserve The address of the underlying asset of the reserve
     * @param liquidityRate The next liquidity rate
     * @param variableBorrowRate The next variable borrow rate
     * @param liquidityIndex The next liquidity index
     * @param variableBorrowIndex The next variable borrow index
     **/
    event ReserveDataUpdated(
        address indexed reserve,
        uint256 liquidityRate,
        uint256 variableBorrowRate,
        uint256 liquidityIndex,
        uint256 variableBorrowIndex
    );

    /**
     * @dev Emitted when the value of claim for yield incentive rate update
     **/
    event ClaimApeForYieldIncentiveUpdated(uint256 oldValue, uint256 newValue);

    /**
     * @notice Initializes a reserve, activating it, assigning an xToken and debt tokens and an
     * interest rate strategy
     * @dev Only callable by the PoolConfigurator contract
     * @param asset The address of the underlying asset of the reserve
     * @param xTokenAddress The address of the xToken that will be assigned to the reserve
     * @param variableDebtAddress The address of the VariableDebtToken that will be assigned to the reserve
     * @param interestRateStrategyAddress The address of the interest rate strategy contract
     * @param auctionStrategyAddress The address of the auction rate strategy contract
     * @param timeLockStrategyAddress The address of the timeLock strategy contract
     **/
    function initReserve(
        address asset,
        address xTokenAddress,
        address variableDebtAddress,
        address interestRateStrategyAddress,
        address auctionStrategyAddress,
        address timeLockStrategyAddress
    ) external;

    /**
     * @notice Drop a reserve
     * @dev Only callable by the PoolConfigurator contract
     * @param asset The address of the underlying asset of the reserve
     **/
    function dropReserve(address asset) external;

    /**
     * @notice Updates the address of the interest rate strategy contract
     * @dev Only callable by the PoolConfigurator contract
     * @param asset The address of the underlying asset of the reserve
     * @param rateStrategyAddress The address of the interest rate strategy contract
     **/
    function setReserveInterestRateStrategyAddress(
        address asset,
        address rateStrategyAddress
    ) external;

    function setReserveTimeLockStrategyAddress(
        address asset,
        address newStrategyAddress
    ) external;

    /**
     * @notice Updates the address of the auction strategy contract
     * @dev Only callable by the PoolConfigurator contract
     * @param asset The address of the underlying asset of the reserve
     * @param auctionStrategyAddress The address of the auction strategy contract
     **/
    function setReserveAuctionStrategyAddress(
        address asset,
        address auctionStrategyAddress
    ) external;

    /**
     * @notice Sets the configuration bitmap of the reserve as a whole
     * @dev Only callable by the PoolConfigurator contract
     * @param asset The address of the underlying asset of the reserve
     * @param configuration The new configuration bitmap
     **/
    function setConfiguration(
        address asset,
        DataTypes.ReserveConfigurationMap calldata configuration
    ) external;

    /**
     * @notice Mints the assets accrued through the reserve factor to the treasury in the form of xTokens
     * @param assets The list of reserves for which the minting needs to be executed
     **/
    function mintToTreasury(address[] calldata assets) external;

    /**
     * @notice Rescue and transfer tokens locked in this contract
     * @param assetType The asset type of the token
     * @param token The address of the token
     * @param to The address of the recipient
     * @param amountOrTokenId The amount or id of token to transfer
     */
    function rescueTokens(
        DataTypes.AssetType assetType,
        address token,
        address to,
        uint256 amountOrTokenId
    ) external;

    /**
     * @notice grant token's an unlimited allowance value to the 'to' address
     * @param token The ERC20 token address
     * @param to The address receive the grant
     */
    function unlimitedApproveTo(address token, address to) external;

    /**
     * @notice reset token's allowance value to the 'to' address
     * @param token The ERC20 token address
     * @param to The address receive the grant
     */
    function revokeUnlimitedApprove(address token, address to) external;

    /**
     * @notice undate fee percentage for claim ape for compound
     * @param fee new fee percentage
     */
    function setClaimApeForCompoundFee(uint256 fee) external;

    /**
     * @notice undate ape compound strategy
     * @param strategy new compound strategy
     */
    function setApeCompoundStrategy(
        DataTypes.ApeCompoundStrategy calldata strategy
    ) external;

    /**
     * @notice get user ape compound strategy
     * @param user The user address
     */
    function getUserApeCompoundStrategy(address user)
        external
        view
        returns (DataTypes.ApeCompoundStrategy memory);

    /**
     * @notice Set the auction recovery health factor
     * @param value The new auction health factor
     */
    function setAuctionRecoveryHealthFactor(uint64 value) external;

    /**
     * @notice Set auction validity time, all auctions triggered before the validity time will be considered as invalid
     * @param user The user address
     */
    function setAuctionValidityTime(address user) external;

    /**
     * @notice Returns the user account data across all the reserves
     * @param user The address of the user
     * @return totalCollateralBase The total collateral of the user in the base currency used by the price feed
     * @return totalDebtBase The total debt of the user in the base currency used by the price feed
     * @return availableBorrowsBase The borrowing power left of the user in the base currency used by the price feed
     * @return currentLiquidationThreshold The liquidation threshold of the user
     * @return ltv The loan to value of The user
     * @return healthFactor The current health factor of the user
     **/
    function getUserAccountData(address user)
        external
        view
        returns (
            uint256 totalCollateralBase,
            uint256 totalDebtBase,
            uint256 availableBorrowsBase,
            uint256 currentLiquidationThreshold,
            uint256 ltv,
            uint256 healthFactor,
            uint256 erc721HealthFactor
        );

    /**
     * @notice Returns Ltv and Liquidation Threshold for the asset
     * @param asset The address of the asset
     * @param tokenId The tokenId of the asset
     * @return ltv The loan to value of the asset
     * @return lt The liquidation threshold value of the asset
     **/
    function getAssetLtvAndLT(address asset, uint256 tokenId)
        external
        view
        returns (uint256 ltv, uint256 lt);
}

// SPDX-License-Identifier: AGPL-3.0
pragma solidity ^0.8.0;

import {DataTypes} from "../protocol/libraries/types/DataTypes.sol";
import {ApeCoinStaking} from "../dependencies/yoga-labs/ApeCoinStaking.sol";

/**
 * @title IPool
 *
 * @notice Defines the basic interface for an ParaSpace Pool.
 **/
interface IPoolPositionMover {
    function movePositionFromBendDAO(uint256[] calldata loanIds) external;

    //# Migration step
    //
    //0. User needs to breakup P2P orders on their own
    //1. Repay Debt
    //   1. if it's cAPE then deposit borrowed APE into old cAPE pool then repay
    //   2. if it's not then just repay with borrowed tokens
    //2. burn old NToken
    //   1. move old NToken to new Pool, if it's staking BAYC/MAYC/BAKC it'll be automatically unstaked
    //   2. withdrawERC721 and specify new NToken as recipient
    //   3. mint new NToken
    //3. burn old PToken
    //   1. move old PToken to new Pool
    //   2. withdraw and specify new PToken as recipient
    //   3. mint new NToken
    //4. Mint new debt
    function movePositionFromParaSpace(
        DataTypes.ParaSpacePositionMoveInfo calldata moveInfo
    ) external;

    function claimUnderlying(
        address[] calldata assets,
        uint256[][] calldata agreementIds
    ) external;
}

// SPDX-License-Identifier: AGPL-3.0
pragma solidity ^0.8.0;

/**
 * @title IRewardController
 *
 * @notice Defines the basic interface for an ParaSpace Incentives Controller.
 **/
interface IRewardController {
    /**
     * @dev Emitted during `handleAction`, `claimRewards` and `claimRewardsOnBehalf`
     * @param user The user that accrued rewards
     * @param amount The amount of accrued rewards
     */
    event RewardsAccrued(address indexed user, uint256 amount);

    event RewardsClaimed(
        address indexed user,
        address indexed to,
        uint256 amount
    );

    /**
     * @dev Emitted during `claimRewards` and `claimRewardsOnBehalf`
     * @param user The address that accrued rewards
     * @param to The address that will be receiving the rewards
     * @param claimer The address that performed the claim
     * @param amount The amount of rewards
     */
    event RewardsClaimed(
        address indexed user,
        address indexed to,
        address indexed claimer,
        uint256 amount
    );

    /**
     * @dev Emitted during `setClaimer`
     * @param user The address of the user
     * @param claimer The address of the claimer
     */
    event ClaimerSet(address indexed user, address indexed claimer);

    /**
     * @notice Returns the configuration of the distribution for a certain asset
     * @param asset The address of the reference asset of the distribution
     * @return The asset index
     * @return The emission per second
     * @return The last updated timestamp
     **/
    function getAssetData(address asset)
        external
        view
        returns (
            uint256,
            uint256,
            uint256
        );

    /**
     * LEGACY **************************
     * @dev Returns the configuration of the distribution for a certain asset
     * @param asset The address of the reference asset of the distribution
     * @return The asset index, the emission per second and the last updated timestamp
     **/
    function assets(address asset)
        external
        view
        returns (
            uint128,
            uint128,
            uint256
        );

    /**
     * @notice Whitelists an address to claim the rewards on behalf of another address
     * @param user The address of the user
     * @param claimer The address of the claimer
     */
    function setClaimer(address user, address claimer) external;

    /**
     * @notice Returns the whitelisted claimer for a certain address (0x0 if not set)
     * @param user The address of the user
     * @return The claimer address
     */
    function getClaimer(address user) external view returns (address);

    /**
     * @notice Configure assets for a certain rewards emission
     * @param assets The assets to incentivize
     * @param emissionsPerSecond The emission for each asset
     */
    function configureAssets(
        address[] calldata assets,
        uint256[] calldata emissionsPerSecond
    ) external;

    /**
     * @notice Called by the corresponding asset on any update that affects the rewards distribution
     * @param asset The address of the user
     * @param userBalance The balance of the user of the asset in the pool
     * @param totalSupply The total supply of the asset in the pool
     **/
    function handleAction(
        address asset,
        uint256 totalSupply,
        uint256 userBalance
    ) external;

    /**
     * @notice Returns the total of rewards of a user, already accrued + not yet accrued
     * @param assets The assets to accumulate rewards for
     * @param user The address of the user
     * @return The rewards
     **/
    function getRewardsBalance(address[] calldata assets, address user)
        external
        view
        returns (uint256);

    /**
     * @notice Claims reward for a user, on the assets of the pool, accumulating the pending rewards
     * @param assets The assets to accumulate rewards for
     * @param amount Amount of rewards to claim
     * @param to Address that will be receiving the rewards
     * @return Rewards claimed
     **/
    function claimRewards(
        address[] calldata assets,
        uint256 amount,
        address to
    ) external returns (uint256);

    /**
     * @notice Claims reward for a user on its behalf, on the assets of the pool, accumulating the pending rewards.
     * @dev The caller must be whitelisted via "allowClaimOnBehalf" function by the RewardsAdmin role manager
     * @param assets The assets to accumulate rewards for
     * @param amount The amount of rewards to claim
     * @param user The address to check and claim rewards
     * @param to The address that will be receiving the rewards
     * @return The amount of rewards claimed
     **/
    function claimRewardsOnBehalf(
        address[] calldata assets,
        uint256 amount,
        address user,
        address to
    ) external returns (uint256);

    /**
     * @notice Returns the unclaimed rewards of the user
     * @param user The address of the user
     * @return The unclaimed user rewards
     */
    function getUserUnclaimedRewards(address user)
        external
        view
        returns (uint256);

    /**
     * @notice Returns the user index for a specific asset
     * @param user The address of the user
     * @param asset The asset to incentivize
     * @return The user index for the asset
     */
    function getUserAssetData(address user, address asset)
        external
        view
        returns (uint256);

    /**
     * @notice for backward compatibility with previous implementation of the Incentives controller
     * @return The address of the reward token
     */
    function REWARD_TOKEN() external view returns (address);

    /**
     * @notice for backward compatibility with previous implementation of the Incentives controller
     * @return The precision used in the incentives controller
     */
    function PRECISION() external view returns (uint8);

    /**
     * @dev Gets the distribution end timestamp of the emissions
     */
    function DISTRIBUTION_END() external view returns (uint256);
}

// SPDX-License-Identifier: AGPL-3.0
pragma solidity ^0.8.0;

/**
 * @title IScaledBalanceToken
 *
 * @notice Defines the basic interface for a scaledbalance token.
 **/
interface IScaledBalanceToken {
    /**
     * @dev Emitted after the mint action
     * @param caller The address performing the mint
     * @param onBehalfOf The address of the user that will receive the minted scaled balance tokens
     * @param value The amount being minted (user entered amount + balance increase from interest)
     * @param balanceIncrease The increase in balance since the last action of the user
     * @param index The next liquidity index of the reserve
     **/
    event Mint(
        address indexed caller,
        address indexed onBehalfOf,
        uint256 value,
        uint256 balanceIncrease,
        uint256 index
    );

    /**
     * @dev Emitted after scaled balance tokens are burned
     * @param from The address from which the scaled tokens will be burned
     * @param target The address that will receive the underlying, if any
     * @param value The amount being burned (user entered amount - balance increase from interest)
     * @param balanceIncrease The increase in balance since the last action of the user
     * @param index The next liquidity index of the reserve
     **/
    event Burn(
        address indexed from,
        address indexed target,
        uint256 value,
        uint256 balanceIncrease,
        uint256 index
    );

    /**
     * @notice Returns the scaled balance of the user.
     * @dev The scaled balance is the sum of all the updated stored balance divided by the reserve's liquidity index
     * at the moment of the update
     * @param user The user whose balance is calculated
     * @return The scaled balance of the user
     **/
    function scaledBalanceOf(address user) external view returns (uint256);

    /**
     * @notice Returns the scaled balance of the user and the scaled total supply.
     * @param user The address of the user
     * @return The scaled balance of the user
     * @return The scaled total supply
     **/
    function getScaledUserBalanceAndSupply(address user)
        external
        view
        returns (uint256, uint256);

    /**
     * @notice Returns the scaled total supply of the scaled balance token. Represents sum(debt/index)
     * @return The scaled total supply
     **/
    function scaledTotalSupply() external view returns (uint256);

    /**
     * @notice Returns last index interest was accrued to the user's balance
     * @param user The address of the user
     * @return The last index interest was accrued to the user's balance, expressed in ray
     **/
    function getPreviousIndex(address user) external view returns (uint256);
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @title The interface for StakefishValidator
/// @notice Defines implementation of the wallet (deposit, withdraw, collect fees)
interface IStakefishValidator {
    enum State {
        PreDeposit,
        PostDeposit,
        Active,
        ExitRequested,
        Exited,
        Withdrawn,
        Burnable
    }

    /// @dev aligns into 32 byte
    struct StateChange {
        State state; // 1 byte
        bytes15 userData; // 15 byte (future use)
        uint128 changedAt; // 16 byte
    }

    function validatorIndex() external view returns (uint256);

    function pubkey() external view returns (bytes memory);

    function withdrawnBalance() external view returns (uint256);

    function feePoolAddress() external view returns (address);

    function stateHistory(uint256 index)
        external
        view
        returns (StateChange memory);

    /// @notice Inspect state of the change
    function lastStateChange() external view returns (StateChange memory);

    /// @notice NFT Owner requests a validator exit
    /// State.Running -> State.ExitRequested
    /// emit ValidatorExitRequest(pubkey)
    function requestExit() external;

    /// @notice user withdraw balance and charge a fee
    function withdraw() external;

    /// @notice get pending fee pool rewards
    function pendingFeePoolReward() external view returns (uint256, uint256);

    /// @notice claim fee pool and forward to nft owner
    function claimFeePool(uint256 amountRequested) external;

    function getProtocolFee() external view returns (uint256);

    function getNFTArtUrl() external view returns (string memory);

    /// @notice computes commission, useful for showing on UI
    function computeCommission(uint256 amount) external view returns (uint256);

    function render() external view returns (string memory);
}

// SPDX-License-Identifier: AGPL-3.0
pragma solidity ^0.8.0;

import {DataTypes} from "../protocol/libraries/types/DataTypes.sol";

/** @title ITimeLock interface for the TimeLock smart contract */
interface ITimeLock {
    /** @dev Struct representing a time-lock agreement
     * @param assetType Type of the asset involved
     * @param actionType Type of action for the time-lock
     * @param isFrozen Indicates if the agreement is frozen
     * @param asset Address of the asset
     * @param beneficiary Address of the beneficiary
     * @param releaseTime Timestamp when the assets can be claimed
     * @param tokenIdsOrAmounts Array of token IDs or amounts
     */
    struct Agreement {
        DataTypes.AssetType assetType;
        DataTypes.TimeLockActionType actionType;
        bool isFrozen;
        address asset;
        address beneficiary;
        uint48 releaseTime;
        uint256[] tokenIdsOrAmounts;
    }

    /** @notice Event emitted when a new time-lock agreement is created
     * @param agreementId ID of the created agreement
     * @param assetType Type of the asset involved
     * @param actionType Type of action for the time-lock
     * @param asset Address of the asset
     * @param tokenIdsOrAmounts Array of token IDs or amounts
     * @param beneficiary Address of the beneficiary
     * @param releaseTime Timestamp when the assets can be claimed
     */
    event AgreementCreated(
        uint256 agreementId,
        DataTypes.AssetType assetType,
        DataTypes.TimeLockActionType actionType,
        address indexed asset,
        uint256[] tokenIdsOrAmounts,
        address indexed beneficiary,
        uint48 releaseTime
    );

    /** @notice Event emitted when a time-lock agreement is claimed
     * @param agreementId ID of the claimed agreement
     * @param assetType Type of the asset involved
     * @param actionType Type of action for the time-lock
     * @param asset Address of the asset
     * @param tokenIdsOrAmounts Array of token IDs or amounts
     * @param beneficiary Address of the beneficiary
     */
    event AgreementClaimed(
        uint256 agreementId,
        DataTypes.AssetType assetType,
        DataTypes.TimeLockActionType actionType,
        address indexed asset,
        uint256[] tokenIdsOrAmounts,
        address indexed beneficiary
    );

    /** @notice Event emitted when a time-lock agreement is frozen or unfrozen
     * @param agreementId ID of the affected agreement
     * @param value Indicates whether the agreement is frozen (true) or unfrozen (false)
     */
    event AgreementFrozen(uint256 agreementId, bool value);

    /** @notice Event emitted when the entire TimeLock contract is frozen or unfrozen
     * @param value Indicates whether the contract is frozen (true) or unfrozen (false)
     */
    event TimeLockFrozen(bool value);

    /** @dev Function to create a new time-lock agreement
     * @param assetType Type of the asset involved
     * @param actionType Type of action for the time-lock
     * @param asset Address of the asset
     * @param tokenIdsOrAmounts Array of token IDs or amounts
     * @param beneficiary Address of the beneficiary
     * @param releaseTime Timestamp when the assets can be claimed
     * @return agreementId Returns the ID of the created agreement
     */
    function createAgreement(
        DataTypes.AssetType assetType,
        DataTypes.TimeLockActionType actionType,
        address asset,
        uint256[] memory tokenIdsOrAmounts,
        address beneficiary,
        uint48 releaseTime
    ) external returns (uint256 agreementId);

    /** @dev Function to claim assets from time-lock agreements
     * @param agreementIds Array of agreement IDs to be claimed
     */
    function claim(uint256[] calldata agreementIds) external;

    /** @dev Function to claim MoonBird from time-lock agreements
     * @param agreementIds Array of agreement IDs to be claimed
     */
    function claimMoonBirds(uint256[] calldata agreementIds) external;

    /** @dev Function to freeze a specific time-lock agreement
     * @param agreementId ID of the agreement to be frozen
     */
    function freezeAgreement(uint256 agreementId) external;

    /** @dev Function to unfreeze a specific time-lock agreement
     * @param agreementId ID of the agreement to be unfrozen
     */
    function unfreezeAgreement(uint256 agreementId) external;

    /** @dev Function to freeze all time-lock agreements
     * @notice This function can only be called by an authorized user
     */
    function freezeAllAgreements() external;

    /** @dev Function to unfreeze all time-lock agreements
     * @notice This function can only be called by an authorized user
     */
    function unfreezeAllAgreements() external;
}

// SPDX-License-Identifier: AGPL-3.0
pragma solidity ^0.8.0;

/**
 * @title IXTokenType
 * @author ParallelFi
 * @notice Defines the basic interface for an IXTokenType.
 **/
enum XTokenType {
    PhantomData, // unused
    NToken,
    NTokenMoonBirds,
    NTokenUniswapV3,
    NTokenBAYC,
    NTokenMAYC,
    PToken,
    DelegationAwarePToken,
    RebasingPToken,
    PTokenAToken,
    PTokenStETH,
    PTokenSApe,
    NTokenBAKC,
    PYieldToken,
    PTokenCAPE,
    NTokenOtherdeed,
    NTokenStakefish,
    NTokenChromieSquiggle,
    PhantomData1,
    PhantomData2,
    PhantomData3,
    PhantomData4,
    PhantomData5,
    PhantomData6,
    PhantomData7,
    PhantomData8,
    PhantomData9,
    PhantomData10,
    PTokenStKSM
}

interface IXTokenType {
    /**
     * @notice return token type`of xToken
     **/
    function getXTokenType() external pure returns (XTokenType);
}

// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.0;

/**
 * @title Errors library
 *
 * @notice Defines the error messages emitted by the different contracts of the ParaSpace protocol
 */
library Errors {
    string public constant CALLER_NOT_POOL_ADMIN = "1"; // 'The caller of the function is not a pool admin'
    string public constant CALLER_NOT_EMERGENCY_ADMIN = "2"; // 'The caller of the function is not an emergency admin'
    string public constant CALLER_NOT_POOL_OR_EMERGENCY_ADMIN = "3"; // 'The caller of the function is not a pool or emergency admin'
    string public constant CALLER_NOT_RISK_OR_POOL_ADMIN = "4"; // 'The caller of the function is not a risk or pool admin'
    string public constant CALLER_NOT_ASSET_LISTING_OR_POOL_ADMIN = "5"; // 'The caller of the function is not an asset listing or pool admin'
    string public constant CALLER_NOT_BRIDGE = "6"; // 'The caller of the function is not a bridge'
    string public constant ADDRESSES_PROVIDER_NOT_REGISTERED = "7"; // 'Pool addresses provider is not registered'
    string public constant INVALID_ADDRESSES_PROVIDER_ID = "8"; // 'Invalid id for the pool addresses provider'
    string public constant NOT_CONTRACT = "9"; // 'Address is not a contract'
    string public constant CALLER_NOT_POOL_CONFIGURATOR = "10"; // 'The caller of the function is not the pool configurator'
    string public constant CALLER_NOT_XTOKEN = "11"; // 'The caller of the function is not an PToken or NToken'
    string public constant INVALID_ADDRESSES_PROVIDER = "12"; // 'The address of the pool addresses provider is invalid'
    string public constant RESERVE_ALREADY_ADDED = "14"; // 'Reserve has already been added to reserve list'
    string public constant NO_MORE_RESERVES_ALLOWED = "15"; // 'Maximum amount of reserves in the pool reached'
    string public constant RESERVE_LIQUIDITY_NOT_ZERO = "18"; // 'The liquidity of the reserve needs to be 0'
    string public constant INVALID_RESERVE_PARAMS = "20"; // 'Invalid risk parameters for the reserve'
    string public constant CALLER_MUST_BE_POOL = "23"; // 'The caller of this function must be a pool'
    string public constant INVALID_MINT_AMOUNT = "24"; // 'Invalid amount to mint'
    string public constant INVALID_BURN_AMOUNT = "25"; // 'Invalid amount to burn'
    string public constant INVALID_AMOUNT = "26"; // 'Amount must be greater than 0'
    string public constant RESERVE_INACTIVE = "27"; // 'Action requires an active reserve'
    string public constant RESERVE_FROZEN = "28"; // 'Action cannot be performed because the reserve is frozen'
    string public constant RESERVE_PAUSED = "29"; // 'Action cannot be performed because the reserve is paused'
    string public constant BORROWING_NOT_ENABLED = "30"; // 'Borrowing is not enabled'
    string public constant STABLE_BORROWING_NOT_ENABLED = "31"; // 'Stable borrowing is not enabled'
    string public constant NOT_ENOUGH_AVAILABLE_USER_BALANCE = "32"; // 'User cannot withdraw more than the available balance'
    string public constant INVALID_INTEREST_RATE_MODE_SELECTED = "33"; // 'Invalid interest rate mode selected'
    string public constant COLLATERAL_BALANCE_IS_ZERO = "34"; // 'The collateral balance is 0'
    string public constant HEALTH_FACTOR_LOWER_THAN_LIQUIDATION_THRESHOLD =
        "35"; // 'Health factor is lesser than the liquidation threshold'
    string public constant COLLATERAL_CANNOT_COVER_NEW_BORROW = "36"; // 'There is not enough collateral to cover a new borrow'
    string public constant COLLATERAL_SAME_AS_BORROWING_CURRENCY = "37"; // 'Collateral is (mostly) the same currency that is being borrowed'
    string public constant AMOUNT_BIGGER_THAN_MAX_LOAN_SIZE_STABLE = "38"; // 'The requested amount is greater than the max loan size in stable rate mode'
    string public constant NO_DEBT_OF_SELECTED_TYPE = "39"; // 'For repayment of a specific type of debt, the user needs to have debt that type'
    string public constant NO_EXPLICIT_AMOUNT_TO_REPAY_ON_BEHALF = "40"; // 'To repay on behalf of a user an explicit amount to repay is needed'
    string public constant NO_OUTSTANDING_STABLE_DEBT = "41"; // 'User does not have outstanding stable rate debt on this reserve'
    string public constant NO_OUTSTANDING_VARIABLE_DEBT = "42"; // 'User does not have outstanding variable rate debt on this reserve'
    string public constant UNDERLYING_BALANCE_ZERO = "43"; // 'The underlying balance needs to be greater than 0'
    string public constant INTEREST_RATE_REBALANCE_CONDITIONS_NOT_MET = "44"; // 'Interest rate rebalance conditions were not met'
    string public constant HEALTH_FACTOR_NOT_BELOW_THRESHOLD = "45"; // 'Health factor is not below the threshold'
    string public constant COLLATERAL_CANNOT_BE_AUCTIONED_OR_LIQUIDATED = "46"; // 'The collateral chosen cannot be auctioned OR liquidated'
    string public constant SPECIFIED_CURRENCY_NOT_BORROWED_BY_USER = "47"; // 'User did not borrow the specified currency'
    string public constant SAME_BLOCK_BORROW_REPAY = "48"; // 'Borrow and repay in same block is not allowed'
    string public constant BORROW_CAP_EXCEEDED = "50"; // 'Borrow cap is exceeded'
    string public constant SUPPLY_CAP_EXCEEDED = "51"; // 'Supply cap is exceeded'
    string public constant XTOKEN_SUPPLY_NOT_ZERO = "54"; // 'PToken supply is not zero'
    string public constant STABLE_DEBT_NOT_ZERO = "55"; // 'Stable debt supply is not zero'
    string public constant VARIABLE_DEBT_SUPPLY_NOT_ZERO = "56"; // 'Variable debt supply is not zero'
    string public constant LTV_VALIDATION_FAILED = "57"; // 'Ltv validation failed'
    string public constant PRICE_ORACLE_SENTINEL_CHECK_FAILED = "59"; // 'Price oracle sentinel validation failed'
    string public constant RESERVE_ALREADY_INITIALIZED = "61"; // 'Reserve has already been initialized'
    string public constant INVALID_LTV = "63"; // 'Invalid ltv parameter for the reserve'
    string public constant INVALID_LIQ_THRESHOLD = "64"; // 'Invalid liquidity threshold parameter for the reserve'
    string public constant INVALID_LIQ_BONUS = "65"; // 'Invalid liquidity bonus parameter for the reserve'
    string public constant INVALID_DECIMALS = "66"; // 'Invalid decimals parameter of the underlying asset of the reserve'
    string public constant INVALID_RESERVE_FACTOR = "67"; // 'Invalid reserve factor parameter for the reserve'
    string public constant INVALID_BORROW_CAP = "68"; // 'Invalid borrow cap for the reserve'
    string public constant INVALID_SUPPLY_CAP = "69"; // 'Invalid supply cap for the reserve'
    string public constant INVALID_LIQUIDATION_PROTOCOL_FEE = "70"; // 'Invalid liquidation protocol fee for the reserve'
    string public constant INVALID_DEBT_CEILING = "73"; // 'Invalid debt ceiling for the reserve
    string public constant INVALID_RESERVE_INDEX = "74"; // 'Invalid reserve index'
    string public constant ACL_ADMIN_CANNOT_BE_ZERO = "75"; // 'ACL admin cannot be set to the zero address'
    string public constant INCONSISTENT_PARAMS_LENGTH = "76"; // 'Array parameters that should be equal length are not'
    string public constant ZERO_ADDRESS_NOT_VALID = "77"; // 'Zero address not valid'
    string public constant INVALID_EXPIRATION = "78"; // 'Invalid expiration'
    string public constant INVALID_SIGNATURE = "79"; // 'Invalid signature'
    string public constant OPERATION_NOT_SUPPORTED = "80"; // 'Operation not supported'
    string public constant ASSET_NOT_LISTED = "82"; // 'Asset is not listed'
    string public constant INVALID_OPTIMAL_USAGE_RATIO = "83"; // 'Invalid optimal usage ratio'
    string public constant INVALID_OPTIMAL_STABLE_TO_TOTAL_DEBT_RATIO = "84"; // 'Invalid optimal stable to total debt ratio'
    string public constant UNDERLYING_CANNOT_BE_RESCUED = "85"; // 'The underlying asset cannot be rescued'
    string public constant ADDRESSES_PROVIDER_ALREADY_ADDED = "86"; // 'Reserve has already been added to reserve list'
    string public constant POOL_ADDRESSES_DO_NOT_MATCH = "87"; // 'The token implementation pool address and the pool address provided by the initializing pool do not match'
    string public constant STABLE_BORROWING_ENABLED = "88"; // 'Stable borrowing is enabled'
    string public constant SILOED_BORROWING_VIOLATION = "89"; // 'User is trying to borrow multiple assets including a siloed one'
    string public constant RESERVE_DEBT_NOT_ZERO = "90"; // the total debt of the reserve needs to be 0
    string public constant NOT_THE_OWNER = "91"; // user is not the owner of a given asset
    string public constant LIQUIDATION_AMOUNT_NOT_ENOUGH = "92";
    string public constant INVALID_ASSET_TYPE = "93"; // invalid asset type for action.
    string public constant INVALID_FLASH_CLAIM_RECEIVER = "94"; // invalid flash claim receiver.
    string public constant ERC721_HEALTH_FACTOR_NOT_BELOW_THRESHOLD = "95"; // ERC721 Health factor is not below the threshold. Can only liquidate ERC20.
    string public constant UNDERLYING_ASSET_CAN_NOT_BE_TRANSFERRED = "96"; //underlying asset can not be transferred.
    string public constant TOKEN_TRANSFERRED_CAN_NOT_BE_SELF_ADDRESS = "97"; //token transferred can not be self address.
    string public constant INVALID_AIRDROP_CONTRACT_ADDRESS = "98"; //invalid airdrop contract address.
    string public constant INVALID_AIRDROP_PARAMETERS = "99"; //invalid airdrop parameters.
    string public constant CALL_AIRDROP_METHOD_FAILED = "100"; //call airdrop method failed.
    string public constant SUPPLIER_NOT_NTOKEN = "101"; //supplier is not the NToken contract
    string public constant CALL_MARKETPLACE_FAILED = "102"; //call marketplace failed.
    string public constant INVALID_MARKETPLACE_ID = "103"; //invalid marketplace id.
    string public constant INVALID_MARKETPLACE_ORDER = "104"; //invalid marketplace id.
    string public constant CREDIT_DOES_NOT_MATCH_ORDER = "105"; //credit doesn't match order.
    string public constant PAYNOW_NOT_ENOUGH = "106"; //paynow not enough.
    string public constant INVALID_CREDIT_SIGNATURE = "107"; //invalid credit signature.
    string public constant INVALID_ORDER_TAKER = "108"; //invalid order taker.
    string public constant MARKETPLACE_PAUSED = "109"; //marketplace paused.
    string public constant INVALID_AUCTION_RECOVERY_HEALTH_FACTOR = "110"; //invalid auction recovery health factor.
    string public constant AUCTION_ALREADY_STARTED = "111"; //auction already started.
    string public constant AUCTION_NOT_STARTED = "112"; //auction not started yet.
    string public constant AUCTION_NOT_ENABLED = "113"; //auction not enabled on the reserve.
    string public constant ERC721_HEALTH_FACTOR_NOT_ABOVE_THRESHOLD = "114"; //ERC721 Health factor is not above the threshold.
    string public constant TOKEN_IN_AUCTION = "115"; //tokenId is in auction.
    string public constant AUCTIONED_BALANCE_NOT_ZERO = "116"; //auctioned balance not zero.
    string public constant LIQUIDATOR_CAN_NOT_BE_SELF = "117"; //user can not liquidate himself.
    string public constant INVALID_RECIPIENT = "118"; //invalid recipient specified in order.
    string public constant FLASHCLAIM_NOT_ALLOWED = "119"; //flash claim is not allowed for UniswapV3 & Stakefish
    string public constant NTOKEN_BALANCE_EXCEEDED = "120"; //ntoken balance exceed limit.
    string public constant ORACLE_PRICE_NOT_READY = "121"; //oracle price not ready.
    string public constant SET_ORACLE_SOURCE_NOT_ALLOWED = "122"; //source of oracle not allowed to set.
    string public constant INVALID_LIQUIDATION_ASSET = "123"; //invalid liquidation asset.
    string public constant XTOKEN_TYPE_NOT_ALLOWED = "124"; //the corresponding xTokenType not allowed in this action
    string public constant GLOBAL_DEBT_IS_ZERO = "125"; //liquidation is not allowed when global debt is zero.
    string public constant ORACLE_PRICE_EXPIRED = "126"; //oracle price expired.
    string public constant APE_STAKING_POSITION_EXISTED = "127"; //ape staking position is existed.
    string public constant SAPE_NOT_ALLOWED = "128"; //operation is not allow for sApe.
    string public constant TOTAL_STAKING_AMOUNT_WRONG = "129"; //cash plus borrow amount not equal to total staking amount.
    string public constant NOT_THE_BAKC_OWNER = "130"; //user is not the bakc owner.
    string public constant CALLER_NOT_EOA = "131"; //The caller of the function is not an EOA account
    string public constant MAKER_SAME_AS_TAKER = "132"; //maker and taker shouldn't be the same address
    string public constant TOKEN_ALREADY_DELEGATED = "133"; //token is already delegted
    string public constant INVALID_STATE = "134"; //invalid token status
    string public constant INVALID_TOKEN_ID = "135"; //invalid token id
    string public constant SENDER_SAME_AS_RECEIVER = "136"; //sender and receiver shouldn't be the same address
    string public constant INVALID_YIELD_UNDERLYING_TOKEN = "137"; //invalid yield underlying token
    string public constant CALLER_NOT_OPERATOR = "138"; // The caller of the function is not operator
    string public constant INVALID_FEE_VALUE = "139"; // invalid fee rate value
    string public constant TOKEN_NOT_ALLOW_RESCUE = "140"; // token is not allow rescue
}

// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.0;

/**
 * @title WadRayMath library
 *
 * @notice Provides functions to perform calculations with Wad and Ray units
 * @dev Provides mul and div function for wads (decimal numbers with 18 digits of precision) and rays (decimal numbers
 * with 27 digits of precision)
 * @dev Operations are rounded. If a value is >=.5, will be rounded up, otherwise rounded down.
 **/
library WadRayMath {
    // HALF_WAD and HALF_RAY expressed with extended notation as constant with operations are not supported in Yul assembly
    uint256 internal constant WAD = 1e18;
    uint256 internal constant HALF_WAD = 0.5e18;

    uint256 internal constant RAY = 1e27;
    uint256 internal constant HALF_RAY = 0.5e27;

    uint256 internal constant WAD_RAY_RATIO = 1e9;

    /**
     * @dev Multiplies two wad, rounding half up to the nearest wad
     * @dev assembly optimized for improved gas savings, see https://twitter.com/transmissions11/status/1451131036377571328
     * @param a Wad
     * @param b Wad
     * @return c = a*b, in wad
     **/
    function wadMul(uint256 a, uint256 b) internal pure returns (uint256 c) {
        // to avoid overflow, a <= (type(uint256).max - HALF_WAD) / b
        assembly {
            if iszero(
                or(iszero(b), iszero(gt(a, div(sub(not(0), HALF_WAD), b))))
            ) {
                revert(0, 0)
            }

            c := div(add(mul(a, b), HALF_WAD), WAD)
        }
    }

    /**
     * @dev Divides two wad, rounding half up to the nearest wad
     * @dev assembly optimized for improved gas savings, see https://twitter.com/transmissions11/status/1451131036377571328
     * @param a Wad
     * @param b Wad
     * @return c = a/b, in wad
     **/
    function wadDiv(uint256 a, uint256 b) internal pure returns (uint256 c) {
        // to avoid overflow, a <= (type(uint256).max - halfB) / WAD
        assembly {
            if or(
                iszero(b),
                iszero(iszero(gt(a, div(sub(not(0), div(b, 2)), WAD))))
            ) {
                revert(0, 0)
            }

            c := div(add(mul(a, WAD), div(b, 2)), b)
        }
    }

    /**
     * @notice Multiplies two ray, rounding half up to the nearest ray
     * @dev assembly optimized for improved gas savings, see https://twitter.com/transmissions11/status/1451131036377571328
     * @param a Ray
     * @param b Ray
     * @return c = a raymul b
     **/
    function rayMul(uint256 a, uint256 b) internal pure returns (uint256 c) {
        // to avoid overflow, a <= (type(uint256).max - HALF_RAY) / b
        assembly {
            if iszero(
                or(iszero(b), iszero(gt(a, div(sub(not(0), HALF_RAY), b))))
            ) {
                revert(0, 0)
            }

            c := div(add(mul(a, b), HALF_RAY), RAY)
        }
    }

    /**
     * @notice Divides two ray, rounding half up to the nearest ray
     * @dev assembly optimized for improved gas savings, see https://twitter.com/transmissions11/status/1451131036377571328
     * @param a Ray
     * @param b Ray
     * @return c = a raydiv b
     **/
    function rayDiv(uint256 a, uint256 b) internal pure returns (uint256 c) {
        // to avoid overflow, a <= (type(uint256).max - halfB) / RAY
        assembly {
            if or(
                iszero(b),
                iszero(iszero(gt(a, div(sub(not(0), div(b, 2)), RAY))))
            ) {
                revert(0, 0)
            }

            c := div(add(mul(a, RAY), div(b, 2)), b)
        }
    }

    /**
     * @dev Casts ray down to wad
     * @dev assembly optimized for improved gas savings, see https://twitter.com/transmissions11/status/1451131036377571328
     * @param a Ray
     * @return b = a converted to wad, rounded half up to the nearest wad
     **/
    function rayToWad(uint256 a) internal pure returns (uint256 b) {
        assembly {
            b := div(a, WAD_RAY_RATIO)
            let remainder := mod(a, WAD_RAY_RATIO)
            if iszero(lt(remainder, div(WAD_RAY_RATIO, 2))) {
                b := add(b, 1)
            }
        }
    }

    /**
     * @dev Converts wad up to ray
     * @dev assembly optimized for improved gas savings, see https://twitter.com/transmissions11/status/1451131036377571328
     * @param a Wad
     * @return b = a converted in ray
     **/
    function wadToRay(uint256 a) internal pure returns (uint256 b) {
        // to avoid overflow, b/WAD_RAY_RATIO == a
        assembly {
            b := mul(a, WAD_RAY_RATIO)

            if iszero(eq(div(b, WAD_RAY_RATIO), a)) {
                revert(0, 0)
            }
        }
    }
}

// SPDX-License-Identifier: AGPL-3.0
pragma solidity ^0.8.0;

/**
 * @title VersionedInitializable
 * , inspired by the OpenZeppelin Initializable contract
 * @notice Helper contract to implement initializer functions. To use it, replace
 * the constructor with a function that has the `initializer` modifier.
 * @dev WARNING: Unlike constructors, initializer functions must be manually
 * invoked. This applies both to deploying an Initializable contract, as well
 * as extending an Initializable contract via inheritance.
 * WARNING: When used with inheritance, manual care must be taken to not invoke
 * a parent initializer twice, or ensure that all initializers are idempotent,
 * because this is not dealt with automatically as with constructors.
 */
abstract contract VersionedInitializable {
    /**
     * @dev Indicates that the contract has been initialized.
     */
    uint256 private lastInitializedRevision = 0;

    /**
     * @dev Indicates that the contract is in the process of being initialized.
     */
    bool private initializing;

    /**
     * @dev Modifier to use in the initializer function of a contract.
     */
    modifier initializer() {
        uint256 revision = getRevision();
        require(
            initializing ||
                isConstructor() ||
                revision > lastInitializedRevision,
            "Contract instance has already been initialized"
        );

        bool isTopLevelCall = !initializing;
        if (isTopLevelCall) {
            initializing = true;
            lastInitializedRevision = revision;
        }

        _;

        if (isTopLevelCall) {
            initializing = false;
        }
    }

    /**
     * @notice Returns the revision number of the contract
     * @dev Needs to be defined in the inherited class as a constant.
     * @return The revision number
     **/
    function getRevision() internal pure virtual returns (uint256);

    /**
     * @notice Returns true if and only if the function is running in the constructor
     * @return True if the function is running in the constructor
     **/
    function isConstructor() private view returns (bool) {
        // extcodesize checks the size of the code stored in an address, and
        // address returns the current address. Since the code is still not
        // deployed when running a constructor, any checks on its code size will
        // yield zero, making it an effective way to detect if a contract is
        // under construction or not.
        uint256 cs;
        //solium-disable-next-line
        assembly {
            cs := extcodesize(address())
        }
        return cs == 0;
    }

    // Reserved storage space to allow for layout changes in the future.
    uint256[50] private ______gap;
}

// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.0;

import {OfferItem, ConsiderationItem} from "../../../dependencies/seaport/contracts/lib/ConsiderationStructs.sol";
import {IStakefishValidator} from "../../../interfaces/IStakefishValidator.sol";

library DataTypes {
    enum AssetType {
        ERC20,
        ERC721
    }

    address public constant SApeAddress = address(0x1);
    uint256 public constant HEALTH_FACTOR_LIQUIDATION_THRESHOLD = 1e18;

    struct ReserveData {
        //stores the reserve configuration
        ReserveConfigurationMap configuration;
        //the liquidity index. Expressed in ray
        uint128 liquidityIndex;
        //the current supply rate. Expressed in ray
        uint128 currentLiquidityRate;
        //variable borrow index. Expressed in ray
        uint128 variableBorrowIndex;
        //the current variable borrow rate. Expressed in ray
        uint128 currentVariableBorrowRate;
        //timestamp of last update
        uint40 lastUpdateTimestamp;
        //the id of the reserve. Represents the position in the list of the active reserves
        uint16 id;
        //xToken address
        address xTokenAddress;
        //variableDebtToken address
        address variableDebtTokenAddress;
        //address of the interest rate strategy
        address interestRateStrategyAddress;
        //address of the auction strategy
        address auctionStrategyAddress;
        //the current treasury balance, scaled
        uint128 accruedToTreasury;
        // timelock strategy
        address timeLockStrategyAddress;
        // use uint128 to be used for crosschain in the future
        // after position move
        uint128 unbacked;
    }

    struct ReserveConfigurationMap {
        //bit 0-15: LTV
        //bit 16-31: Liq. threshold
        //bit 32-47: Liq. bonus
        //bit 48-55: Decimals
        //bit 56: reserve is active
        //bit 57: reserve is frozen
        //bit 58: borrowing is enabled
        //bit 59: stable rate borrowing enabled
        //bit 60: asset is paused
        //bit 61: borrowing in isolation mode is enabled
        //bit 62-63: reserved
        //bit 64-79: reserve factor
        //bit 80-115 borrow cap in whole tokens, borrowCap == 0 => no cap
        //bit 116-151 supply cap in whole tokens, supplyCap == 0 => no cap
        //bit 152-167 liquidation protocol fee
        //bit 168-175 eMode category
        //bit 176-211 unbacked mint cap in whole tokens, unbackedMintCap == 0 => minting disabled
        //bit 212-251 debt ceiling for isolation mode with (ReserveConfiguration::DEBT_CEILING_DECIMALS) decimals
        //bit 252-255 unused

        uint256 data;
    }

    struct UserConfigurationMap {
        /**
         * @dev Bitmap of the users collaterals and borrows. It is divided in pairs of bits, one pair per asset.
         * The first bit indicates if an asset is used as collateral by the user, the second whether an
         * asset is borrowed by the user.
         */
        uint256 data;
        // auction validity time for closing invalid auctions in one tx.
        uint256 auctionValidityTime;
    }

    struct ERC721SupplyParams {
        uint256 tokenId;
        bool useAsCollateral;
    }

    struct StakefishNTokenData {
        uint256 validatorIndex;
        bytes pubkey;
        uint256 withdrawnBalance;
        address feePoolAddress;
        string nftArtUrl;
        uint256 protocolFee;
        IStakefishValidator.StateChange[] stateHistory;
        uint256[2] pendingFeePoolReward;
    }

    struct NTokenData {
        uint256 tokenId;
        uint256 multiplier;
        bool useAsCollateral;
        bool isAuctioned;
        StakefishNTokenData stakefishNTokenData;
    }

    struct ReserveCache {
        uint256 currScaledVariableDebt;
        uint256 nextScaledVariableDebt;
        uint256 currLiquidityIndex;
        uint256 nextLiquidityIndex;
        uint256 currVariableBorrowIndex;
        uint256 nextVariableBorrowIndex;
        uint256 currLiquidityRate;
        uint256 currVariableBorrowRate;
        uint256 reserveFactor;
        ReserveConfigurationMap reserveConfiguration;
        address xTokenAddress;
        address variableDebtTokenAddress;
        uint40 reserveLastUpdateTimestamp;
    }

    struct ExecuteLiquidateParams {
        uint256 reservesCount;
        uint256 liquidationAmount;
        uint256 collateralTokenId;
        uint256 auctionRecoveryHealthFactor;
        address weth;
        address collateralAsset;
        address liquidationAsset;
        address borrower;
        address liquidator;
        bool receiveXToken;
        address priceOracle;
        address priceOracleSentinel;
    }

    struct ExecuteAuctionParams {
        uint256 reservesCount;
        uint256 auctionRecoveryHealthFactor;
        uint256 collateralTokenId;
        address collateralAsset;
        address user;
        address priceOracle;
    }

    struct ExecuteSupplyParams {
        address asset;
        uint256 amount;
        address onBehalfOf;
        address payer;
        uint16 referralCode;
    }

    struct ExecuteSupplyERC721Params {
        address asset;
        DataTypes.ERC721SupplyParams[] tokenData;
        address onBehalfOf;
        address payer;
        uint16 referralCode;
    }

    struct ExecuteBorrowParams {
        address asset;
        address user;
        address onBehalfOf;
        uint256 amount;
        uint16 referralCode;
        bool releaseUnderlying;
        uint256 reservesCount;
        address oracle;
        address priceOracleSentinel;
    }

    struct ExecuteRepayParams {
        address asset;
        uint256 amount;
        address onBehalfOf;
        address payer;
        bool usePTokens;
    }

    struct ExecuteWithdrawParams {
        address asset;
        uint256 amount;
        address to;
        uint256 reservesCount;
        address oracle;
    }

    struct ExecuteWithdrawERC721Params {
        address asset;
        uint256[] tokenIds;
        address to;
        uint256 reservesCount;
        address oracle;
    }

    struct ExecuteDecreaseUniswapV3LiquidityParams {
        address user;
        address asset;
        uint256 tokenId;
        uint256 reservesCount;
        uint128 liquidityDecrease;
        uint256 amount0Min;
        uint256 amount1Min;
        bool receiveEthAsWeth;
        address oracle;
    }

    struct FinalizeTransferParams {
        address asset;
        address from;
        address to;
        bool usedAsCollateral;
        uint256 amount;
        uint256 balanceFromBefore;
        uint256 balanceToBefore;
        uint256 reservesCount;
        address oracle;
    }

    struct FinalizeTransferERC721Params {
        address asset;
        address from;
        address to;
        bool usedAsCollateral;
        uint256 tokenId;
        uint256 balanceFromBefore;
        uint256 reservesCount;
        address oracle;
    }

    struct CalculateUserAccountDataParams {
        UserConfigurationMap userConfig;
        uint256 reservesCount;
        address user;
        address oracle;
    }

    struct ValidateBorrowParams {
        ReserveCache reserveCache;
        UserConfigurationMap userConfig;
        address asset;
        address userAddress;
        uint256 amount;
        uint256 reservesCount;
        address oracle;
        address priceOracleSentinel;
    }

    struct ValidateLiquidateERC20Params {
        ReserveCache liquidationAssetReserveCache;
        address liquidationAsset;
        address weth;
        uint256 totalDebt;
        uint256 healthFactor;
        uint256 liquidationAmount;
        uint256 actualLiquidationAmount;
        address priceOracleSentinel;
    }

    struct ValidateLiquidateERC721Params {
        ReserveCache liquidationAssetReserveCache;
        address liquidationAsset;
        address liquidator;
        address borrower;
        uint256 globalDebt;
        uint256 healthFactor;
        address collateralAsset;
        uint256 tokenId;
        address weth;
        uint256 actualLiquidationAmount;
        uint256 maxLiquidationAmount;
        uint256 auctionRecoveryHealthFactor;
        address priceOracleSentinel;
        address xTokenAddress;
        bool auctionEnabled;
    }

    struct ValidateAuctionParams {
        address user;
        uint256 auctionRecoveryHealthFactor;
        uint256 erc721HealthFactor;
        address collateralAsset;
        uint256 tokenId;
        address xTokenAddress;
    }

    struct CalculateInterestRatesParams {
        uint256 liquidityAdded;
        uint256 liquidityTaken;
        uint256 totalVariableDebt;
        uint256 reserveFactor;
        address reserve;
        address xToken;
    }

    struct InitReserveParams {
        address asset;
        address xTokenAddress;
        address variableDebtAddress;
        address interestRateStrategyAddress;
        address auctionStrategyAddress;
        address timeLockStrategyAddress;
        uint16 reservesCount;
        uint16 maxNumberReserves;
    }

    struct ExecuteFlashClaimParams {
        address receiverAddress;
        address[] nftAssets;
        uint256[][] nftTokenIds;
        bytes params;
        address oracle;
    }

    struct Credit {
        address token;
        uint256 amount;
        bytes orderId;
        uint8 v;
        bytes32 r;
        bytes32 s;
    }

    struct ExecuteMarketplaceParams {
        bytes32 marketplaceId;
        bytes payload;
        Credit credit;
        uint256 ethLeft;
        DataTypes.Marketplace marketplace;
        OrderInfo orderInfo;
        address weth;
        uint16 referralCode;
        uint256 reservesCount;
        address oracle;
        address priceOracleSentinel;
    }

    struct OrderInfo {
        address maker;
        address taker;
        bytes id;
        OfferItem[] offer;
        ConsiderationItem[] consideration;
    }

    struct Marketplace {
        address marketplace;
        address adapter;
        address operator;
        bool paused;
    }

    struct Auction {
        uint256 startTime;
    }

    struct AuctionData {
        address asset;
        uint256 tokenId;
        uint256 startTime;
        uint256 currentPriceMultiplier;
        uint256 maxPriceMultiplier;
        uint256 minExpPriceMultiplier;
        uint256 minPriceMultiplier;
        uint256 stepLinear;
        uint256 stepExp;
        uint256 tickLength;
    }

    struct TokenData {
        string symbol;
        address tokenAddress;
    }

    enum ApeCompoundType {
        SwapAndSupply
    }

    enum ApeCompoundTokenOut {
        USDC,
        WETH
    }

    struct ApeCompoundStrategy {
        ApeCompoundType ty;
        ApeCompoundTokenOut swapTokenOut;
        uint256 swapPercent;
    }

    struct PoolStorage {
        // Map of reserves and their data (underlyingAssetOfReserve => reserveData)
        mapping(address => ReserveData) _reserves;
        // Map of users address and their configuration data (userAddress => userConfiguration)
        mapping(address => UserConfigurationMap) _usersConfig;
        // List of reserves as a map (reserveId => reserve).
        // It is structured as a mapping for gas savings reasons, using the reserve id as index
        mapping(uint256 => address) _reservesList;
        // Maximum number of active reserves there have been in the protocol. It is the upper bound of the reserves list
        uint16 _reservesCount;
        // Auction recovery health factor
        uint64 _auctionRecoveryHealthFactor;
        // Incentive fee for claim ape reward to compound
        uint16 _apeCompoundFee;
        // Map of user's ape compound strategies
        mapping(address => ApeCompoundStrategy) _apeCompoundStrategies;
    }

    struct ReserveConfigData {
        uint256 decimals;
        uint256 ltv;
        uint256 liquidationThreshold;
        uint256 liquidationBonus;
        uint256 reserveFactor;
        bool usageAsCollateralEnabled;
        bool borrowingEnabled;
        bool isActive;
        bool isFrozen;
        bool isPaused;
    }

    struct TimeLockParams {
        uint48 releaseTime;
        TimeLockActionType actionType;
    }

    struct TimeLockFactorParams {
        AssetType assetType;
        address asset;
        uint256 amount;
    }

    enum TimeLockActionType {
        BORROW,
        WITHDRAW
    }

    struct ParaSpacePositionMoveInfo {
        address[] cTokens;
        DataTypes.AssetType[] cTypes;
        uint256[][] cAmountsOrTokenIds;
        address[] dTokens;
        uint256[] dAmounts;
        address to;
    }

    struct ParaSpacePositionMoveParams {
        address user;
        address[] cTokens;
        DataTypes.AssetType[] cTypes;
        uint256[][] cAmountsOrTokenIds;
        address[] dTokens;
        uint256[] dAmounts;
        address to;
        address priceOracle;
        address priceOracleSentinel;
        uint256 reservesCount;
    }
}

// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.8.0;

/**
 * @title EIP712Base
 *
 * @notice Base contract implementation of EIP712.
 */
abstract contract EIP712Base {
    bytes public constant EIP712_REVISION = bytes("1");
    bytes32 internal constant EIP712_DOMAIN =
        keccak256(
            "EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"
        );

    // Map of address nonces (address => nonce)
    mapping(address => uint256) internal _nonces;

    bytes32 internal _domainSeparator;
    uint256 internal immutable _chainId;

    /**
     * @dev Constructor.
     */
    constructor() {
        _chainId = block.chainid;
    }

    /**
     * @notice Get the domain separator for the token
     * @dev Return cached value if chainId matches cache, otherwise recomputes separator
     * @return The domain separator of the token at current chain
     */
    function DOMAIN_SEPARATOR() public view virtual returns (bytes32) {
        if (block.chainid == _chainId) {
            return _domainSeparator;
        }
        return _calculateDomainSeparator();
    }

    /**
     * @notice Returns the nonce value for address specified as parameter
     * @param owner The address for which the nonce is being returned
     * @return The nonce value for the input address`
     */
    function nonces(address owner) public view virtual returns (uint256) {
        return _nonces[owner];
    }

    /**
     * @notice Compute the current domain separator
     * @return The domain separator for the token
     */
    function _calculateDomainSeparator() internal view returns (bytes32) {
        return
            keccak256(
                abi.encode(
                    EIP712_DOMAIN,
                    keccak256(bytes(_EIP712BaseId())),
                    keccak256(EIP712_REVISION),
                    block.chainid,
                    address(this)
                )
            );
    }

    /**
     * @notice Returns the user readable name of signing domain (e.g. token name)
     * @return The name of the signing domain
     */
    function _EIP712BaseId() internal view virtual returns (string memory);
}

// SPDX-License-Identifier: BUSL-1.1
pragma solidity ^0.8.0;

import {Context} from "../../../dependencies/openzeppelin/contracts/Context.sol";
import {IERC20} from "../../../dependencies/openzeppelin/contracts/IERC20.sol";
import {IERC20Detailed} from "../../../dependencies/openzeppelin/contracts/IERC20Detailed.sol";
import {SafeCast} from "../../../dependencies/openzeppelin/contracts/SafeCast.sol";
import {WadRayMath} from "../../libraries/math/WadRayMath.sol";
import {Errors} from "../../libraries/helpers/Errors.sol";
import {IRewardController} from "../../../interfaces/IRewardController.sol";
import {IPoolAddressesProvider} from "../../../interfaces/IPoolAddressesProvider.sol";
import {IPool} from "../../../interfaces/IPool.sol";
import {IACLManager} from "../../../interfaces/IACLManager.sol";

/**
 * @title IncentivizedERC20
 * , inspired by the Openzeppelin ERC20 implementation
 * @notice Basic ERC20 implementation
 **/
abstract contract IncentivizedERC20 is Context, IERC20Detailed {
    using WadRayMath for uint256;
    using SafeCast for uint256;

    /**
     * @dev Only pool admin can call functions marked by this modifier.
     **/
    modifier onlyPoolAdmin() {
        IACLManager aclManager = IACLManager(
            _addressesProvider.getACLManager()
        );
        require(
            aclManager.isPoolAdmin(msg.sender),
            Errors.CALLER_NOT_POOL_ADMIN
        );
        _;
    }

    /**
     * @dev Only pool can call functions marked by this modifier.
     **/
    modifier onlyPool() {
        require(_msgSender() == address(POOL), Errors.CALLER_MUST_BE_POOL);
        _;
    }

    /**
     * @dev UserState - additionalData is a flexible field.
     * PTokens and VariableDebtTokens use this field store the index of the
     * user's last supply/withdrawal/borrow/repayment. StableDebtTokens use
     * this field to store the user's stable rate.
     */
    struct UserState {
        uint128 balance;
        uint128 additionalData;
    }
    // Map of users address and their state data (userAddress => userStateData)
    mapping(address => UserState) internal _userState;

    // Map of allowances (delegator => delegatee => allowanceAmount)
    mapping(address => mapping(address => uint256)) private _allowances;

    uint256 internal _totalSupply;
    string private _name;
    string private _symbol;
    uint8 private _decimals;
    IRewardController internal _rewardController;
    IPoolAddressesProvider internal immutable _addressesProvider;
    IPool public immutable POOL;

    /**
     * @dev Constructor.
     * @param pool The reference to the main Pool contract
     * @param name_ The name of the token
     * @param symbol_ The symbol of the token
     * @param decimals_ The number of decimals of the token
     */
    constructor(
        IPool pool,
        string memory name_,
        string memory symbol_,
        uint8 decimals_
    ) {
        _addressesProvider = pool.ADDRESSES_PROVIDER();
        _name = name_;
        _symbol = symbol_;
        _decimals = decimals_;
        POOL = pool;
    }

    /// @inheritdoc IERC20Detailed
    function name() public view override returns (string memory) {
        return _name;
    }

    /// @inheritdoc IERC20Detailed
    function symbol() external view override returns (string memory) {
        return _symbol;
    }

    /// @inheritdoc IERC20Detailed
    function decimals() external view override returns (uint8) {
        return _decimals;
    }

    /// @inheritdoc IERC20
    function totalSupply() public view virtual override returns (uint256) {
        return _totalSupply;
    }

    /// @inheritdoc IERC20
    function balanceOf(address account)
        public
        view
        virtual
        override
        returns (uint256)
    {
        return _userState[account].balance;
    }

    /**
     * @notice Returns the address of the Incentives Controller contract
     * @return The address of the Incentives Controller
     **/
    function getIncentivesController()
        external
        view
        virtual
        returns (IRewardController)
    {
        return _rewardController;
    }

    /**
     * @notice Sets a new Incentives Controller
     * @param controller the new Incentives controller
     **/
    function setIncentivesController(IRewardController controller)
        external
        onlyPoolAdmin
    {
        _rewardController = controller;
    }

    /// @inheritdoc IERC20
    function transfer(address recipient, uint256 amount)
        external
        virtual
        override
        returns (bool)
    {
        uint128 castAmount = amount.toUint128();
        _transfer(_msgSender(), recipient, castAmount);
        return true;
    }

    /// @inheritdoc IERC20
    function allowance(address owner, address spender)
        external
        view
        virtual
        override
        returns (uint256)
    {
        return _allowances[owner][spender];
    }

    /// @inheritdoc IERC20
    function approve(address spender, uint256 amount)
        external
        virtual
        override
        returns (bool)
    {
        _approve(_msgSender(), spender, amount);
        return true;
    }

    /// @inheritdoc IERC20
    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) external virtual override returns (bool) {
        uint128 castAmount = amount.toUint128();
        _approve(
            sender,
            _msgSender(),
            _allowances[sender][_msgSender()] - castAmount
        );
        _transfer(sender, recipient, castAmount);
        return true;
    }

    /**
     * @notice Increases the allowance of spender to spend _msgSender() tokens
     * @param spender The user allowed to spend on behalf of _msgSender()
     * @param addedValue The amount being added to the allowance
     * @return `true`
     **/
    function increaseAllowance(address spender, uint256 addedValue)
        external
        virtual
        returns (bool)
    {
        _approve(
            _msgSender(),
            spender,
            _allowances[_msgSender()][spender] + addedValue
        );
        return true;
    }

    /**
     * @notice Decreases the allowance of spender to spend _msgSender() tokens
     * @param spender The user allowed to spend on behalf of _msgSender()
     * @param subtractedValue The amount being subtracted to the allowance
     * @return `true`
     **/
    function decreaseAllowance(address spender, uint256 subtractedValue)
        external
        virtual
        returns (bool)
    {
        _approve(
            _msgSender(),
            spender,
            _allowances[_msgSender()][spender] - subtractedValue
        );
        return true;
    }

    /**
     * @notice Transfers tokens between two users and apply incentives if defined.
     * @param sender The source address
     * @param recipient The destination address
     * @param amount The amount getting transferred
     */
    function _transfer(
        address sender,
        address recipient,
        uint128 amount
    ) internal virtual {
        uint128 oldSenderBalance = _userState[sender].balance;
        _userState[sender].balance = oldSenderBalance - amount;
        uint128 oldRecipientBalance = _userState[recipient].balance;
        _userState[recipient].balance = oldRecipientBalance + amount;

        IRewardController rewardControllerLocal = _rewardController;
        if (address(rewardControllerLocal) != address(0)) {
            uint256 currentTotalSupply = _totalSupply;
            rewardControllerLocal.handleAction(
                sender,
                currentTotalSupply,
                oldSenderBalance
            );
            if (sender != recipient) {
                rewardControllerLocal.handleAction(
                    recipient,
                    currentTotalSupply,
                    oldRecipientBalance
                );
            }
        }
    }

    /**
     * @notice Approve `spender` to use `amount` of `owner`s balance
     * @param owner The address owning the tokens
     * @param spender The address approved for spending
     * @param amount The amount of tokens to approve spending of
     */
    function _approve(
        address owner,
        address spender,
        uint256 amount
    ) internal virtual {
        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

    /**
     * @notice Update the name of the token
     * @param newName The new name for the token
     */
    function _setName(string memory newName) internal {
        _name = newName;
    }

    /**
     * @notice Update the symbol for the token
     * @param newSymbol The new symbol for the token
     */
    function _setSymbol(string memory newSymbol) internal {
        _symbol = newSymbol;
    }

    /**
     * @notice Update the number of decimals for the token
     * @param newDecimals The new number of decimals for the token
     */
    function _setDecimals(uint8 newDecimals) internal {
        _decimals = newDecimals;
    }
}

// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.8.0;

import {IRewardController} from "../../../interfaces/IRewardController.sol";
import {IPool} from "../../../interfaces/IPool.sol";
import {IncentivizedERC20} from "./IncentivizedERC20.sol";

/**
 * @title MintableIncentivizedERC20
 *
 * @notice Implements mint and burn functions for IncentivizedERC20
 **/
abstract contract MintableIncentivizedERC20 is IncentivizedERC20 {
    /**
     * @dev Constructor.
     * @param pool The reference to the main Pool contract
     * @param name The name of the token
     * @param symbol The symbol of the token
     * @param decimals The number of decimals of the token
     */
    constructor(
        IPool pool,
        string memory name,
        string memory symbol,
        uint8 decimals
    ) IncentivizedERC20(pool, name, symbol, decimals) {
        // Intentionally left blank
    }

    /**
     * @notice Mints tokens to an account and apply incentives if defined
     * @param account The address receiving tokens
     * @param amount The amount of tokens to mint
     */
    function _mint(address account, uint128 amount) internal virtual {
        uint256 oldTotalSupply = _totalSupply;
        _totalSupply = oldTotalSupply + amount;

        uint128 oldAccountBalance = _userState[account].balance;
        _userState[account].balance = oldAccountBalance + amount;

        IRewardController rewardControllerLocal = _rewardController;
        if (address(rewardControllerLocal) != address(0)) {
            rewardControllerLocal.handleAction(
                account,
                oldTotalSupply,
                oldAccountBalance
            );
        }
    }

    /**
     * @notice Burns tokens from an account and apply incentives if defined
     * @param account The account whose tokens are burnt
     * @param amount The amount of tokens to burn
     */
    function _burn(address account, uint128 amount) internal virtual {
        uint256 oldTotalSupply = _totalSupply;
        _totalSupply = oldTotalSupply - amount;

        uint128 oldAccountBalance = _userState[account].balance;
        _userState[account].balance = oldAccountBalance - amount;

        IRewardController rewardControllerLocal = _rewardController;

        if (address(rewardControllerLocal) != address(0)) {
            rewardControllerLocal.handleAction(
                account,
                oldTotalSupply,
                oldAccountBalance
            );
        }
    }
}

// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.8.0;

import {SafeCast} from "../../../dependencies/openzeppelin/contracts/SafeCast.sol";
import {Errors} from "../../libraries/helpers/Errors.sol";
import {WadRayMath} from "../../libraries/math/WadRayMath.sol";
import {IPool} from "../../../interfaces/IPool.sol";
import {IScaledBalanceToken} from "../../../interfaces/IScaledBalanceToken.sol";
import {MintableIncentivizedERC20} from "./MintableIncentivizedERC20.sol";

/**
 * @title ScaledBalanceTokenBase
 *
 * @notice Basic ERC20 implementation of scaled balance token
 **/
abstract contract ScaledBalanceTokenBaseERC20 is
    MintableIncentivizedERC20,
    IScaledBalanceToken
{
    using WadRayMath for uint256;
    using SafeCast for uint256;

    /**
     * @dev Constructor.
     * @param pool The reference to the main Pool contract
     * @param name The name of the token
     * @param symbol The symbol of the token
     * @param decimals The number of decimals of the token
     */
    constructor(
        IPool pool,
        string memory name,
        string memory symbol,
        uint8 decimals
    ) MintableIncentivizedERC20(pool, name, symbol, decimals) {
        // Intentionally left blank
    }

    /// @inheritdoc IScaledBalanceToken
    function scaledBalanceOf(address user)
        public
        view
        virtual
        override
        returns (uint256)
    {
        return super.balanceOf(user);
    }

    /// @inheritdoc IScaledBalanceToken
    function getScaledUserBalanceAndSupply(address user)
        external
        view
        virtual
        override
        returns (uint256, uint256)
    {
        return (super.balanceOf(user), super.totalSupply());
    }

    /// @inheritdoc IScaledBalanceToken
    function scaledTotalSupply()
        public
        view
        virtual
        override
        returns (uint256)
    {
        return super.totalSupply();
    }

    /// @inheritdoc IScaledBalanceToken
    function getPreviousIndex(address user)
        external
        view
        virtual
        override
        returns (uint256)
    {
        return _userState[user].additionalData;
    }

    /**
     * @notice Implements the basic logic to mint a scaled balance token.
     * @param caller The address performing the mint
     * @param onBehalfOf The address of the user that will receive the scaled tokens
     * @param amount The amount of tokens getting minted
     * @param index The next liquidity index of the reserve
     * @return `true` if the the previous balance of the user was 0
     **/
    function _mintScaled(
        address caller,
        address onBehalfOf,
        uint256 amount,
        uint256 index
    ) internal virtual returns (bool) {
        uint256 amountScaled = amount.rayDiv(index);
        require(amountScaled != 0, Errors.INVALID_MINT_AMOUNT);

        uint256 scaledBalance = super.balanceOf(onBehalfOf);
        uint256 balanceIncrease = scaledBalance.rayMul(index) -
            scaledBalance.rayMul(_userState[onBehalfOf].additionalData);

        _userState[onBehalfOf].additionalData = index.toUint128();

        _mint(onBehalfOf, amountScaled.toUint128());

        uint256 amountToMint = amount + balanceIncrease;
        emit Transfer(address(0), onBehalfOf, amountToMint);
        emit Mint(caller, onBehalfOf, amountToMint, balanceIncrease, index);

        return (scaledBalance == 0);
    }

    /**
     * @notice Implements the basic logic to burn a scaled balance token.
     * @dev In some instances, a burn transaction will emit a mint event
     * if the amount to burn is less than the interest that the user accrued
     * @param user The user which debt is burnt
     * @param target The address that will receive the underlying, if any
     * @param amount The amount getting burned
     * @param index The variable debt index of the reserve
     **/
    function _burnScaled(
        address user,
        address target,
        uint256 amount,
        uint256 index
    ) internal virtual {
        uint256 amountScaled = amount.rayDiv(index);
        require(amountScaled != 0, Errors.INVALID_BURN_AMOUNT);

        uint256 scaledBalance = super.balanceOf(user);
        uint256 balanceIncrease = scaledBalance.rayMul(index) -
            scaledBalance.rayMul(_userState[user].additionalData);

        _userState[user].additionalData = index.toUint128();

        _burn(user, amountScaled.toUint128());

        if (balanceIncrease > amount) {
            uint256 amountToMint = balanceIncrease - amount;
            emit Transfer(address(0), user, amountToMint);
            emit Mint(user, user, amountToMint, balanceIncrease, index);
        } else {
            uint256 amountToBurn = amount - balanceIncrease;
            emit Transfer(user, address(0), amountToBurn);
            emit Burn(user, target, amountToBurn, balanceIncrease, index);
        }
    }

    function _transferScaled(
        address from,
        address to,
        uint256 amount,
        uint256 index
    ) internal virtual {
        super._transfer(from, to, amount.rayDiv(index).toUint128());
    }
}

{
  "remappings": [
    "contracts/=contracts/",
    "ds-test/=lib/ds-test/src/",
    "forge-std/=lib/forge-std/src/",
    "pnm-contracts/=lib/pnm-contracts/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "london",
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

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0000000000000000000000006d596fdfd3381ebb5ecd526ebcaec8cc2ba019ff

-----Decoded View---------------
Arg [0] : pool (address): 0x6d596FdFD3381eBB5eCd526eBcAec8cC2BA019fF

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 0000000000000000000000006d596fdfd3381ebb5ecd526ebcaec8cc2ba019ff