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// SPDX-License-Identifier: BUSL-1.1

pragma solidity 0.8.11;
pragma abicoder v2;

import "contracts/ZapDepositor.sol";
import "contracts/interfaces/protocols/ILidoSTETH.sol";
import "contracts/interfaces/IWETH9.sol";
contract LidoDepositor is ZapDepositor {
    using SafeERC20Upgradeable for IERC20;

    ILidoSTETH public constant ST_ETH =
        ILidoSTETH(0xae7ab96520DE3A18E5e111B5EaAb095312D7fE84); // mainnet address

    IWETH9 public constant weth9 =
        IWETH9(0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2); // mainnet address
    
    fallback() external payable {}

    /**
     * @notice Deposit a defined underling in the depositor protocol
     * @param _token the token to deposit
     * @param _underlyingAmount the amount to deposit
     * @return the amount ibt generated and sent back to the caller
     */

    function depositInProtocol(address _token, uint256 _underlyingAmount)
        public
        override
        onlyZaps
        tokenIsValid(_token)
        returns (uint256)
    {
        require(_token == address(0x00), "Lido: Token address not valid");

        IERC20(_token).transferFrom(
            msg.sender,
            address(this),
            _underlyingAmount
        );

        uint256 wethBalance = IERC20(_token).balanceOf(address(this));
        // swap weth to eth
        weth9.withdraw(wethBalance);

        ST_ETH.submit{ value: address(this).balance }(
            address(0x00)
        ); // deposit ETH and get STETH to depositor with referral address to 0x00.
        uint256 IBTAMOUNT = ST_ETH.balanceOf(address(this));
        return IBTAMOUNT;
    }

    /**
     * @notice Deposit a defined underling in the depositor protocol from the caller adderss
     * @param _token the token to deposit
     * @param _underlyingAmount the amount to deposit
     * @param _from the address from which the underlying need to be pulled
     * @return the amount ibt generated
     */
    function depositInProtocolFrom(
        address _token,
        uint256 _underlyingAmount,
        address _from
    ) public override onlyZaps tokenIsValid(_token) returns (uint256) {
        IERC20(_token).transferFrom(_from, address(this), _underlyingAmount); // pull weth from user to depositor
        uint256 wethBalance = IERC20(_token).balanceOf(address(this));

        weth9.withdraw(wethBalance);

        uint256 IBTAMOUNT = ST_ETH.getSharesByPooledEth(address(this).balance);        
        ST_ETH.submit{ value: address(this).balance }(
            address(0x00)
        ); // deposit ETH and get STETH to depositor with referral address to 0x00.
        
        ST_ETH.transfer(msg.sender, IBTAMOUNT);
        
        return IBTAMOUNT;
    }
}

// SPDX-License-Identifier: BUSL-1.1

pragma solidity 0.8.11;
pragma abicoder v2;

import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/utils/structs/EnumerableSetUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/token/ERC20/utils/SafeERC20Upgradeable.sol";
import "contracts/interfaces/IERC20.sol";
import "contracts/interfaces/IDepositorRegistry.sol";

abstract contract ZapDepositor is Initializable, OwnableUpgradeable {
    using EnumerableSetUpgradeable for EnumerableSetUpgradeable.AddressSet;
    using SafeERC20Upgradeable for IERC20;

    uint256 internal constant MAX_UINT256 =
        0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff;

    IDepositorRegistry public depositorRegistry;
    EnumerableSetUpgradeable.AddressSet private tokens;

    mapping(address => address) public IBTOfUnderlying; // underlying to respective IBT

    event TokenAdded(address _token);
    event TokenRemoved(address _token);
    event IBTOfUnderlyingUpdated(
        address indexed _underlying,
        address indexed _pool
    );

    modifier onlyZaps() {
        require(
            depositorRegistry.isRegisteredZap(msg.sender),
            "ZapDepositor: Invalid caller"
        );
        _;
    }

    modifier tokenIsValid(address _token) {
        require(tokens.contains(_token), "ZapDepositor: invalid token address");
        _;
    }

    /**
     * @notice ZapDepositor initializer
     * @param _depositorRegistry the depositor registry
     */
    function initialize(IDepositorRegistry _depositorRegistry)
        public
        initializer
    {
        __Ownable_init();
        depositorRegistry = _depositorRegistry;
    }

    /**
     * @notice Deposit a defined underling in the depositor protocol
     * @param _token the token to deposit
     * @param _underlyingAmount the amount to deposit
     * @return the amount ibt generated and sent back to the caller
     */
    function depositInProtocol(address _token, uint256 _underlyingAmount)
        public
        virtual
        onlyZaps
        tokenIsValid(_token)
        returns (uint256)
    {}

    /**
     * @notice Deposit a defined underling in the depositor protocol from the caller adderss
     * @param _token the token to deposit
     * @param _underlyingAmount the amount to deposit
     * @param _from the address from which the underlying need to be pulled
     * @return the amount ibt generated
     */
    function depositInProtocolFrom(
        address _token,
        uint256 _underlyingAmount,
        address _from
    ) public virtual onlyZaps tokenIsValid(_token) returns (uint256) {}

    /**
     * @notice Add a token to the depositor's list of underlyings
     * @param _token the token to add
     */
    function addToken(address _token) external onlyOwner {
        require(tokens.add(_token), "ZapDepositor: token already added");
        emit TokenAdded(_token);
    }

    /**
     * @notice Remove a token from the depositor's list of underlyings
     * @param _token the token to remove
     */
    function removeToken(address _token) external onlyOwner {
        require(tokens.add(_token), "ZapDepositor: invalid token address");
        emit TokenRemoved(_token);
    }

    /**
     * @notice Getter for the length of the token list
     * @return the length of the list
     */
    function getTokensLength() external view returns (uint256) {
        return tokens.length();
    }

    /**
     * @notice Getter for a particular token address of the list
     * @param _index the index of the token to get the address of
     * @return the address of the token
     */
    function getTokensAt(uint256 _index) external view returns (address) {
        return tokens.at(_index);
    }

    function setIBTOfUnderlying(address _underlying, address _ibt)
        external
        onlyOwner
    {
        IBTOfUnderlying[_underlying] = _ibt;
        IERC20(_underlying).safeIncreaseAllowance(
            address(_ibt),
            MAX_UINT256 -
                (IERC20(_underlying).allowance(address(this), address(_ibt)))
        );
        emit IBTOfUnderlyingUpdated(_underlying, _ibt);
    }
}

// SPDX-License-Identifier: BUSL-1.1

pragma solidity 0.8.11;
pragma abicoder v2;

interface ILidoSTETH {
    /**
     * @notice Adds eth to the pool
     * @return StETH Amount of StETH generated
     */
    function submit(address _referral) external payable returns (uint256);
    function balanceOf(address account) external view returns (uint256);
    function transfer(address _recipient, uint256 _amount) external returns (bool);
    function getSharesByPooledEth(uint256 _amount) external view returns (uint256);
}

// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity >=0.7.5;
pragma abicoder v2;

interface IWETH9 {
    function withdraw(uint wad) external;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (proxy/utils/Initializable.sol)

pragma solidity ^0.8.0;

import "../../utils/AddressUpgradeable.sol";

/**
 * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
 * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
 * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
 * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
 *
 * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
 * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
 *
 * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
 * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
 *
 * [CAUTION]
 * ====
 * Avoid leaving a contract uninitialized.
 *
 * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
 * contract, which may impact the proxy. To initialize the implementation contract, you can either invoke the
 * initializer manually, or you can include a constructor to automatically mark it as initialized when it is deployed:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * /// @custom:oz-upgrades-unsafe-allow constructor
 * constructor() initializer {}
 * ```
 * ====
 */
abstract contract Initializable {
    /**
     * @dev Indicates that the contract has been initialized.
     */
    bool private _initialized;

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

    /**
     * @dev Modifier to protect an initializer function from being invoked twice.
     */
    modifier initializer() {
        // If the contract is initializing we ignore whether _initialized is set in order to support multiple
        // inheritance patterns, but we only do this in the context of a constructor, because in other contexts the
        // contract may have been reentered.
        require(_initializing ? _isConstructor() : !_initialized, "Initializable: contract is already initialized");

        bool isTopLevelCall = !_initializing;
        if (isTopLevelCall) {
            _initializing = true;
            _initialized = true;
        }

        _;

        if (isTopLevelCall) {
            _initializing = false;
        }
    }

    /**
     * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
     * {initializer} modifier, directly or indirectly.
     */
    modifier onlyInitializing() {
        require(_initializing, "Initializable: contract is not initializing");
        _;
    }

    function _isConstructor() private view returns (bool) {
        return !AddressUpgradeable.isContract(address(this));
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/Ownable.sol)

pragma solidity ^0.8.0;

import "../utils/ContextUpgradeable.sol";
import "../proxy/utils/Initializable.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.
 */
abstract contract OwnableUpgradeable is Initializable, ContextUpgradeable {
    address private _owner;

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

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    function __Ownable_init() internal onlyInitializing {
        __Ownable_init_unchained();
    }

    function __Ownable_init_unchained() internal onlyInitializing {
        _transferOwnership(_msgSender());
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual 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 {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _transferOwnership(newOwner);
    }

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

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[49] private __gap;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/structs/EnumerableSet.sol)

pragma solidity ^0.8.0;

/**
 * @dev Library for managing
 * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive
 * types.
 *
 * Sets have the following properties:
 *
 * - Elements are added, removed, and checked for existence in constant time
 * (O(1)).
 * - Elements are enumerated in O(n). No guarantees are made on the ordering.
 *
 * ```
 * contract Example {
 *     // Add the library methods
 *     using EnumerableSet for EnumerableSet.AddressSet;
 *
 *     // Declare a set state variable
 *     EnumerableSet.AddressSet private mySet;
 * }
 * ```
 *
 * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`)
 * and `uint256` (`UintSet`) are supported.
 */
library EnumerableSetUpgradeable {
    // To implement this library for multiple types with as little code
    // repetition as possible, we write it in terms of a generic Set type with
    // bytes32 values.
    // The Set implementation uses private functions, and user-facing
    // implementations (such as AddressSet) are just wrappers around the
    // underlying Set.
    // This means that we can only create new EnumerableSets for types that fit
    // in bytes32.

    struct Set {
        // Storage of set values
        bytes32[] _values;
        // Position of the value in the `values` array, plus 1 because index 0
        // means a value is not in the set.
        mapping(bytes32 => uint256) _indexes;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function _add(Set storage set, bytes32 value) private returns (bool) {
        if (!_contains(set, value)) {
            set._values.push(value);
            // The value is stored at length-1, but we add 1 to all indexes
            // and use 0 as a sentinel value
            set._indexes[value] = set._values.length;
            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function _remove(Set storage set, bytes32 value) private returns (bool) {
        // We read and store the value's index to prevent multiple reads from the same storage slot
        uint256 valueIndex = set._indexes[value];

        if (valueIndex != 0) {
            // Equivalent to contains(set, value)
            // To delete an element from the _values array in O(1), we swap the element to delete with the last one in
            // the array, and then remove the last element (sometimes called as 'swap and pop').
            // This modifies the order of the array, as noted in {at}.

            uint256 toDeleteIndex = valueIndex - 1;
            uint256 lastIndex = set._values.length - 1;

            if (lastIndex != toDeleteIndex) {
                bytes32 lastvalue = set._values[lastIndex];

                // Move the last value to the index where the value to delete is
                set._values[toDeleteIndex] = lastvalue;
                // Update the index for the moved value
                set._indexes[lastvalue] = valueIndex; // Replace lastvalue's index to valueIndex
            }

            // Delete the slot where the moved value was stored
            set._values.pop();

            // Delete the index for the deleted slot
            delete set._indexes[value];

            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function _contains(Set storage set, bytes32 value) private view returns (bool) {
        return set._indexes[value] != 0;
    }

    /**
     * @dev Returns the number of values on the set. O(1).
     */
    function _length(Set storage set) private view returns (uint256) {
        return set._values.length;
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function _at(Set storage set, uint256 index) private view returns (bytes32) {
        return set._values[index];
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function _values(Set storage set) private view returns (bytes32[] memory) {
        return set._values;
    }

    // Bytes32Set

    struct Bytes32Set {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(Bytes32Set storage set, bytes32 value) internal returns (bool) {
        return _add(set._inner, value);
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) {
        return _remove(set._inner, value);
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) {
        return _contains(set._inner, value);
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(Bytes32Set storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) {
        return _at(set._inner, index);
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(Bytes32Set storage set) internal view returns (bytes32[] memory) {
        return _values(set._inner);
    }

    // AddressSet

    struct AddressSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(AddressSet storage set, address value) internal returns (bool) {
        return _add(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(AddressSet storage set, address value) internal returns (bool) {
        return _remove(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(AddressSet storage set, address value) internal view returns (bool) {
        return _contains(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(AddressSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(AddressSet storage set, uint256 index) internal view returns (address) {
        return address(uint160(uint256(_at(set._inner, index))));
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(AddressSet storage set) internal view returns (address[] memory) {
        bytes32[] memory store = _values(set._inner);
        address[] memory result;

        assembly {
            result := store
        }

        return result;
    }

    // UintSet

    struct UintSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(UintSet storage set, uint256 value) internal returns (bool) {
        return _add(set._inner, bytes32(value));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(UintSet storage set, uint256 value) internal returns (bool) {
        return _remove(set._inner, bytes32(value));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(UintSet storage set, uint256 value) internal view returns (bool) {
        return _contains(set._inner, bytes32(value));
    }

    /**
     * @dev Returns the number of values on the set. O(1).
     */
    function length(UintSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(UintSet storage set, uint256 index) internal view returns (uint256) {
        return uint256(_at(set._inner, index));
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(UintSet storage set) internal view returns (uint256[] memory) {
        bytes32[] memory store = _values(set._inner);
        uint256[] memory result;

        assembly {
            result := store
        }

        return result;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20Upgradeable.sol";
import "../../../utils/AddressUpgradeable.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 SafeERC20Upgradeable {
    using AddressUpgradeable for address;

    function safeTransfer(
        IERC20Upgradeable token,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    function safeTransferFrom(
        IERC20Upgradeable 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(
        IERC20Upgradeable 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(
        IERC20Upgradeable 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(
        IERC20Upgradeable 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));
        }
    }

    /**
     * @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(IERC20Upgradeable 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: BUSL-1.1

pragma solidity 0.8.11;

import "@openzeppelin/contracts-upgradeable/token/ERC20/IERC20Upgradeable.sol";

interface IERC20 is IERC20Upgradeable {
    /**
     * @dev Returns the name of the token.
     */
    function name() external returns (string memory);

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() external returns (string memory);

    /**
     * @dev Returns the number of decimals used to get its user representation.
     * For example, if `decimals` equals `2`, a balance of `505` tokens should
     * be displayed to a user as `5,05` (`505 / 10 ** 2`).
     *
     * Tokens usually opt for a value of 18, imitating the relationship between
     * Ether and Wei. This is the value {ERC20} uses, unless {_setupDecimals} is
     * called.
     *
     * NOTE: This information is only used for _display_ purposes: it in
     * no way affects any of the arithmetic of the contract, including
     * {IERC20-balanceOf} and {IERC20-transfer}.
     */
    function decimals() external view returns (uint8);

    /**
     * @dev Atomically increases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function increaseAllowance(address spender, uint256 addedValue)
        external
        returns (bool);

    /**
     * @dev Atomically decreases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `spender` must have allowance for the caller of at least
     * `subtractedValue`.
     */
    function decreaseAllowance(address spender, uint256 subtractedValue)
        external
        returns (bool);

    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);

    function mint(address to, uint256 amount) external;
}

// SPDX-License-Identifier: BUSL-1.1

pragma solidity 0.8.11;
pragma abicoder v2;

import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
import "contracts/interfaces/IZapDepositor.sol";
import "contracts/interfaces/IAMM.sol";
import "contracts/interfaces/IAMMRegistry.sol";

interface IDepositorRegistry {
    event ZapDepositorSet(address _amm, IZapDepositor _zapDepositor);

    function ZapDepositorsPerAMM(address _address)
        external
        view
        returns (IZapDepositor);

    function registry() external view returns (IAMMRegistry);

    function setZapDepositor(address _amm, IZapDepositor _zapDepositor)
        external;

    function isRegisteredZap(address _zapAddress) external view returns (bool);

    function addZap(address _zapAddress) external returns (bool);

    function removeZap(address _zapAddress) external returns (bool);

    function zapLength() external view returns (uint256);

    function zapAt(uint256 _index) external view returns (address);
}

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

pragma solidity ^0.8.1;

/**
 * @dev Collection of functions related to the address type
 */
library AddressUpgradeable {
    /**
     * @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 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

                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)

pragma solidity ^0.8.0;
import "../proxy/utils/Initializable.sol";

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

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

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

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[50] private __gap;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20Upgradeable {
    /**
     * @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 `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, 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 `from` to `to` 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 from,
        address to,
        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: BUSL-1.1

pragma solidity 0.8.11;
pragma abicoder v2;

interface IZapDepositor {
    /**
     * @notice Deposit a defined underling in the depositor protocol
     * @param _token the token to deposit
     * @param _underlyingAmount the amount to deposit
     * @return the amount ibt generated and sent back to the caller
     */
    function depositInProtocol(address _token, uint256 _underlyingAmount)
        external
        returns (uint256);

    /**
     * @notice Deposit a defined underling in the depositor protocol from the caller adderss
     * @param _token the token to deposit
     * @param _underlyingAmount the amount to deposit
     * @param _from the address from which the underlying need to be pulled
     * @return the amount ibt generated
     */
    function depositInProtocolFrom(
        address _token,
        uint256 _underlyingAmount,
        address _from
    ) external returns (uint256);
}

// SPDX-License-Identifier: BUSL-1.1

pragma solidity 0.8.11;
pragma abicoder v2;

interface IAMM {
    /* Struct */
    struct Pair {
        address tokenAddress; // first is always PT
        uint256[2] weights;
        uint256[2] balances;
        bool liquidityIsInitialized;
    }

    enum AMMGlobalState {
        Created,
        Activated,
        Paused
    }

    /**
     * @notice finalize the initialization of the amm
     * @dev must be called during the first period the amm is supposed to be active
     */
    function finalize() external;

    /**
     * @notice switch period
     * @dev must be called after each new period switch
     * @dev the switch will auto renew part of the tokens and update the weights accordingly
     */
    function switchPeriod() external;

    /**
     * @notice toggle amm pause for pausing/resuming all user functionalities
     */
    function togglePauseAmm() external;

    /**
     * @notice Withdraw expired LP tokens
     */
    function withdrawExpiredToken(address _user, uint256 _lpTokenId) external;

    /**
     * @notice Getter for redeemable expired tokens info
     * @param _user the address of the user to check the redeemable tokens of
     * @param _lpTokenId the lp token id
     * @return the amount, the period id and the pair id of the expired tokens of the user
     */
    function getExpiredTokensInfo(address _user, uint256 _lpTokenId)
        external
        view
        returns (
            uint256,
            uint256,
            uint256
        );

    function swapExactAmountIn(
        uint256 _pairID,
        uint256 _tokenIn,
        uint256 _tokenAmountIn,
        uint256 _tokenOut,
        uint256 _minAmountOut,
        address _to
    ) external returns (uint256 tokenAmountOut, uint256 spotPriceAfter);

    function swapExactAmountOut(
        uint256 _pairID,
        uint256 _tokenIn,
        uint256 _maxAmountIn,
        uint256 _tokenOut,
        uint256 _tokenAmountOut,
        address _to
    ) external returns (uint256 tokenAmountIn, uint256 spotPriceAfter);

    /**
     * @notice Create liquidity on the pair setting an initial price
     */
    function createLiquidity(uint256 _pairID, uint256[2] memory _tokenAmounts)
        external;

    function addLiquidity(
        uint256 _pairID,
        uint256 _poolAmountOut,
        uint256[2] memory _maxAmountsIn
    ) external;

    function removeLiquidity(
        uint256 _pairID,
        uint256 _poolAmountIn,
        uint256[] calldata _minAmountsOut
    ) external;

    function joinSwapExternAmountIn(
        uint256 _pairID,
        uint256 _tokenIn,
        uint256 _tokenAmountIn,
        uint256 _minPoolAmountOut
    ) external returns (uint256 poolAmountOut);

    function joinSwapPoolAmountOut(
        uint256 _pairID,
        uint256 _tokenIn,
        uint256 _poolAmountOut,
        uint256 _maxAmountIn
    ) external returns (uint256 tokenAmountIn);

    function exitSwapPoolAmountIn(
        uint256 _pairID,
        uint256 _tokenOut,
        uint256 _poolAmountIn,
        uint256 _minAmountOut
    ) external returns (uint256 tokenAmountOut);

    function exitSwapExternAmountOut(
        uint256 _pairID,
        uint256 _tokenOut,
        uint256 _tokenAmountOut,
        uint256 _maxPoolAmountIn
    ) external returns (uint256 poolAmountIn);

    function setSwappingFees(uint256 _swapFee) external;

    /* Getters */
    function calcOutAndSpotGivenIn(
        uint256 _pairID,
        uint256 _tokenIn,
        uint256 _tokenAmountIn,
        uint256 _tokenOut,
        uint256 _minAmountOut
    ) external view returns (uint256 tokenAmountOut, uint256 spotPriceAfter);

    function calcInAndSpotGivenOut(
        uint256 _pairID,
        uint256 _tokenIn,
        uint256 _maxAmountIn,
        uint256 _tokenOut,
        uint256 _tokenAmountOut
    ) external view returns (uint256 tokenAmountIn, uint256 spotPriceAfter);

    /**
     * @notice Getter for the spot price of a pair
     * @param _pairID the id of the pair
     * @param _tokenIn the id of the tokens sent
     * @param _tokenOut the id of the tokens received
     * @return the sport price of the pair
     */
    function getSpotPrice(
        uint256 _pairID,
        uint256 _tokenIn,
        uint256 _tokenOut
    ) external view returns (uint256);

    /**
     * @notice Getter for the address of the corresponding future vault
     * @return the address of the future vault
     */
    function getFutureAddress() external view returns (address);

    /**
     * @notice Getter for the pt address
     * @return the pt address
     */
    function getPTAddress() external view returns (address);

    /**
     * @notice Getter for the address of the underlying token of the ibt
     * @return the address of the underlying token of the ibt
     */
    function getUnderlyingOfIBTAddress() external view returns (address);

    /**
     * @notice Getter for the fyt address
     * @return the fyt address
     */
    function getFYTAddress() external view returns (address);

    function getIBTAddress() external view returns (address);

    /**
     * @notice Getter for the PT weight in the first pair (0)
     * @return the weight of the pt
     */
    function getPTWeightInPair() external view returns (uint256);

    function getPairWithID(uint256 _pairID) external view returns (Pair memory);

    function getLPTokenId(
        uint256 _ammId,
        uint256 _periodIndex,
        uint256 _pairID
    ) external pure returns (uint256);

    function ammId() external view returns (uint64);

    function currentPeriodIndex() external view returns (uint256);

    function getTotalSupplyWithTokenId(uint256 _tokenId)
        external
        view
        returns (uint256);

    function getAMMState() external view returns (AMMGlobalState);
}

// SPDX-License-Identifier: BUSL-1.1

pragma solidity 0.8.11;
pragma experimental ABIEncoderV2;

/**
 * @title AMM Registry interface
 * @notice Keeps a record of all Future / Pool pairs
 */
interface IAMMRegistry {
    /**
     * @notice Initializer of the contract
     * @param _admin the address of the admin of the contract
     */
    function initialize(address _admin) external;

    /* Setters */

    /**
     * @notice Setter for the AMM pools
     * @param _futureVaultAddress the future vault address
     * @param _ammPool the AMM pool address
     */
    function setAMMPoolByFuture(address _futureVaultAddress, address _ammPool)
        external;

    /**
     * @notice Register the AMM pools
     * @param _ammPool the AMM pool address
     */
    function setAMMPool(address _ammPool) external;

    /**
     * @notice Remove an AMM Pool from the registry
     * @param _ammPool the address of the pool to remove from the registry
     */
    function removeAMMPool(address _ammPool) external;

    /* Getters */
    /**
     * @notice Getter for the controller address
     * @return the address of the controller
     */
    function getFutureAMMPool(address _futureVaultAddress)
        external
        view
        returns (address);

    function isRegisteredAMM(address _ammAddress) external view returns (bool);
}

{
  "optimizer": {
    "enabled": true,
    "runs": 1000
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "metadata": {
    "useLiteralContent": true
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_underlying","type":"address"},{"indexed":true,"internalType":"address","name":"_pool","type":"address"}],"name":"IBTOfUnderlyingUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"_token","type":"address"}],"name":"TokenAdded","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"_token","type":"address"}],"name":"TokenRemoved","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"IBTOfUnderlying","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"ST_ETH","outputs":[{"internalType":"contract ILidoSTETH","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_token","type":"address"}],"name":"addToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_token","type":"address"},{"internalType":"uint256","name":"_underlyingAmount","type":"uint256"}],"name":"depositInProtocol","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_token","type":"address"},{"internalType":"uint256","name":"_underlyingAmount","type":"uint256"},{"internalType":"address","name":"_from","type":"address"}],"name":"depositInProtocolFrom","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"depositorRegistry","outputs":[{"internalType":"contract IDepositorRegistry","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_index","type":"uint256"}],"name":"getTokensAt","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getTokensLength","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"contract IDepositorRegistry","name":"_depositorRegistry","type":"address"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_token","type":"address"}],"name":"removeToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_underlying","type":"address"},{"internalType":"address","name":"_ibt","type":"address"}],"name":"setIBTOfUnderlying","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"weth9","outputs":[{"internalType":"contract IWETH9","name":"","type":"address"}],"stateMutability":"view","type":"function"}]

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