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// SPDX-License-Identifier: MIT
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pragma solidity 0.8.18;

import {BaseProtocolProxy} from "../base/BaseProtocolProxy.sol";
import {IInvest} from "../interfaces/Invest/IInvest.sol";
import {ISDai} from "../interfaces/Invest/ISDai.sol";
import {ILido} from "../interfaces/Invest/ILido.sol";
import {IWETH9} from "../interfaces/IWETH9.sol";
import {IWstETH} from "../interfaces/Invest/IWstETH.sol";

/**
 * @title Invest proxy contract
 * @author Pino development team
 * @notice Interacts with Lido and SavingsDai
 */
contract Invest is IInvest, BaseProtocolProxy {
    address public immutable dai;
    ISDai public immutable sdai;
    ILido public immutable steth;
    IWstETH public immutable wsteth;

    /**
     * @notice Lido proxy contract
     * @param _permit2 Permit2 contract address
     * @param _weth WETH9 contract address
     * @param _stETH StETH contract address
     * @param _wstETH WstETH contract address
     * @param _sDai Savings Dai contract address
     */
    constructor(address _permit2, address _weth, ILido _stETH, IWstETH _wstETH, ISDai _sDai)
        payable
        BaseProtocolProxy(_permit2, _weth)
    {
        sdai = _sDai;
        steth = _stETH;
        wsteth = _wstETH;
        dai = _sDai.dai();
    }

    /**
     * @notice Sends ETH to the Lido protocol and transfers ST_ETH to the recipient
     * @param _proxyFeeInWei Fee of the proxy contract
     * @param _recipient The destination address that will receive ST_ETH
     * @return stethAmount Amount of ST_ETH token that is being transferred to the recipient
     */
    function ethToStETH(address _recipient, uint256 _proxyFeeInWei)
        external
        payable
        nonETHReuse
        returns (uint256 stethAmount)
    {
        address _steth = address(steth);

        // Get StETH by paying ETH
        stethAmount = ILido(_steth).submit{value: msg.value - _proxyFeeInWei}(msg.sender);

        // Recipient receives StETH shares
        sweepStETH(_recipient);

        emit Deposit(msg.sender, _recipient, ETH, _steth, msg.value - _proxyFeeInWei);
    }

    /**
     * @notice Converts ETH to WST_ETH and transfers WST_ETH to the recipient
     * @param _proxyFeeInWei Fee of the proxy contract
     * @param _recipient The destination address that will receive WST_ETH
     */
    function ethToWstETH(address _recipient, uint256 _proxyFeeInWei) external payable nonETHReuse {
        address _wsteth = address(wsteth);

        // Get WstETH by paying ETH
        _sendETH(_wsteth, msg.value - _proxyFeeInWei);

        // Recipient receives WstETH shares
        sweepToken(IWstETH(_wsteth), _recipient);

        emit Deposit(msg.sender, _recipient, ETH, _wsteth, msg.value - _proxyFeeInWei);
    }

    /**
     * @notice Submits WETH to Lido protocol and transfers ST_ETH to the recipient
     * @param _amount Amount of WETH to submit to ST_ETH contract
     * @param _recipient The destination address that will receive ST_ETH
     * @dev For security reasons, it is not possible to run functions
     * inside of this function separately through a multicall
     * @return stethAmount Amount of ST_ETH token that is being transferred to msg.sender
     */
    function wethToStETH(uint256 _amount, address _recipient)
        external
        payable
        nonETHReuse
        returns (uint256 stethAmount)
    {
        address _weth = address(weth);
        address _steth = address(steth);

        // StETH works with ETH, so WETH needs to be unwrapped
        IWETH9(_weth).withdraw(_amount);

        // Get StETH by paying ETH
        stethAmount = ILido(_steth).submit{value: _amount}(msg.sender);

        // Recipient receives StETH shares
        sweepStETH(_recipient);

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

    /**
     * @notice Submits WETH to Lido protocol and transfers WST_ETH to msg.sender
     * @param _amount Amount of WETH to submit to get WST_ETH
     * @param _recipient The destination address that will receive WST_ETH
     */
    function wethToWstETH(uint256 _amount, address _recipient) external payable nonETHReuse {
        address _weth = address(weth);
        address _wsteth = address(wsteth);

        // WstETH works with ETH, so WETH needs to be unwrapped
        IWETH9(_weth).withdraw(_amount);

        // Get WstETH by paying ETH
        _sendETH(_wsteth, _amount);

        // Recipient receives WstETH
        sweepToken(IWstETH(_wsteth), _recipient);

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

    /**
     * @notice Wraps ST_ETH to WST_ETH and transfers it to msg.sender
     * @param _amount Amount to convert to WST_ETH
     * @param _recipient The destination address that will receive WST_ETH
     * @return wrapped The amount of wrapped WstETH token
     */
    function stETHToWstETH(uint256 _amount, address _recipient) external payable returns (uint256 wrapped) {
        address _wsteth = address(wsteth);

        // Uses StETH shares of the proxy to get WstETH
        wrapped = IWstETH(_wsteth).wrap(_amount);

        // Recipient receives WstETH
        sweepToken(IWstETH(wsteth), _recipient);

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

    /**
     * @notice Unwraps WST_ETH to ST_ETH and transfers it to the recipient
     * @param _amount Amount of WstETH to unwrap
     * @param _recipient The destination address that will receive StETH
     * @return unwrapped The amount of StETH unwrapped
     */
    function wstETHToStETH(uint256 _amount, address _recipient) external payable returns (uint256 unwrapped) {
        address _wsteth = address(wsteth);

        // Uses WstETH in the proxy contract to get StETH
        unwrapped = IWstETH(_wsteth).unwrap(_amount);

        // Recipient receives StETH
        sweepStETH(_recipient);

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

    /**
     * @notice Transfers DAI to SavingsDai and transfers SDai to the recipient
     * @param _amount Amount of DAI to deposit
     * @param _recipient The destination address that will receive SDAI
     * @return deposited Returns the amount of shares that recipient received after deposit
     */
    function daiToSDai(uint256 _amount, address _recipient) external payable returns (uint256 deposited) {
        address _sdai = address(sdai);

        // Uses the DAI inside the proxy contract to get SDAI
        deposited = ISDai(_sdai).deposit(_amount, _recipient);

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

    /**
     * @notice Transfers SDAI to SavingsDai and transfers Dai to the recipient
     * @param _amount Amount of SDAI to withdraw
     * @param _recipient The destination address that will receive DAI
     * @return withdrew Returns the amount of shares that were burned
     */
    function sDaiToDai(uint256 _amount, address _recipient) external payable returns (uint256 withdrew) {
        address _sdai = address(sdai);

        // Uses SDAI token inside the proxy contract to get DAI
        withdrew = ISDai(_sdai).withdraw(_amount, _recipient, address(this));

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

    /**
     * @notice Sweeps all ST_ETH tokens of the contract based on shares to msg.sender
     * @dev This function uses sharesOf instead of balanceOf to transfer 100% of tokens
     */
    function sweepStETH(address _recipient) internal {
        // Recipient receives StETH shares
        steth.transferShares(_recipient, steth.sharesOf(address(this)));
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol)

pragma solidity ^0.8.0;

import "../utils/Context.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * 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 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() {
        _transferOwnership(_msgSender());
    }

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

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

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
    }

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

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable2Step.sol)

pragma solidity ^0.8.0;

import "./Ownable.sol";

/**
 * @dev Contract module which provides 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} and {acceptOwnership}.
 *
 * This module is used through inheritance. It will make available all functions
 * from parent (Ownable).
 */
abstract contract Ownable2Step is Ownable {
    address private _pendingOwner;

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

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

    /**
     * @dev Starts the ownership transfer of the contract to a new account. Replaces the pending transfer if there is one.
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual override onlyOwner {
        _pendingOwner = newOwner;
        emit OwnershipTransferStarted(owner(), newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`) and deletes any pending owner.
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual override {
        delete _pendingOwner;
        super._transferOwnership(newOwner);
    }

    /**
     * @dev The new owner accepts the ownership transfer.
     */
    function acceptOwnership() public virtual {
        address sender = _msgSender();
        require(pendingOwner() == sender, "Ownable2Step: caller is not the new owner");
        _transferOwnership(sender);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/extensions/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
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

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

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

    /**
     * @dev Returns the 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);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.3) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";
import "../extensions/IERC20Permit.sol";
import "../../../utils/Address.sol";

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

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

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

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

    /**
     * @dev Decrease the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    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");
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance - value));
        }
    }

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

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

    /**
     * @dev Use a ERC-2612 signature to set the `owner` approval toward `spender` on `token`.
     * Revert on invalid signature.
     */
    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");
        require(returndata.length == 0 || abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation 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).
     *
     * This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead.
     */
    function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We cannot use {Address-functionCall} here since this should return false
        // and not revert is the subcall reverts.

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)

pragma solidity ^0.8.1;

/**
 * @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
     *
     * Furthermore, `isContract` will also return true if the target contract within
     * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
     * which only has an effect at the end of a transaction.
     * ====
     *
     * [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://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.8.0/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 functionCallWithValue(target, data, 0, "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");
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, 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) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, 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) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
     *
     * _Available since v4.8._
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        if (success) {
            if (returndata.length == 0) {
                // only check isContract if the call was successful and the return data is empty
                // otherwise we already know that it was a contract
                require(isContract(target), "Address: call to non-contract");
            }
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason or 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 {
            _revert(returndata, errorMessage);
        }
    }

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

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

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 meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

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

// SPDX-License-Identifier: MIT
pragma solidity 0.8.18;

import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import {Ownable2Step} from "@openzeppelin/contracts/access/Ownable2Step.sol";
import {SafeERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";

import {IWETH9} from "../interfaces/IWETH9.sol";
import {Multicall} from "./Multicall.sol";
import {Permit} from "./Permit.sol";

/**
 * @title Handles payment and approve functions
 * @author Pino development team
 */
contract BaseProtocolProxy is Permit, Multicall, Ownable2Step {
    using SafeERC20 for IERC20;

    IWETH9 public immutable weth;
    address internal constant ETH = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;

    /**
     * @notice Thrown when the ETH transfer call is failed
     * @param _caller Address of the caller of the transaction
     * @param _recipient Address of the recipient receiving ETH
     */
    error FailedToSendEther(address _caller, address _recipient);

    /**
     * @notice Thrown when the amount of ETH to transfer is 0
     */
    error InvalidAmountToTransfer();

    /**
     * @notice Proxy contract constructor, sets permit2 and weth addresses
     * @param _permit2 Permit2 contract address
     * @param _weth WETH9 contract address
     */
    constructor(address _permit2, address _weth) payable Permit(_permit2) {
        weth = IWETH9(_weth);
    }

    receive() external payable {}

    /**
     * @notice Withdraws ETH and transfers to the recipient
     * @param _recipient Address of the destination receiving the fees
     */
    function withdrawAdmin(address _recipient) external onlyOwner {
        _sendETH(_recipient, address(this).balance);
    }

    /**
     * @notice Approves an ERC20 token to multiple spenders
     * @param _token ERC20 token address
     * @param _spenders The spender which spends the tokens (usually DeFi protocols)
     */
    function approveToken(IERC20 _token, address[] calldata _spenders) external payable {
        for (uint256 i = 0; i < _spenders.length;) {
            _token.forceApprove(_spenders[i], type(uint256).max);

            unchecked {
                ++i;
            }
        }
    }

    /**
     * @notice Wraps ETH to WETH
     * @param _proxyFeeInWei Fee of the proxy contract
     */
    function wrapETH(uint256 _proxyFeeInWei) external payable nonETHReuse {
        weth.deposit{value: msg.value - _proxyFeeInWei}();
    }

    /**
     * @notice Unwraps total amount of WETH9 to ETH and transfers the amount to the recipient
     * @param _recipient The destination address
     */
    function unwrapWETH9(address _recipient) external payable {
        uint256 balanceWETH = weth.balanceOf(address(this));

        if (balanceWETH > 0) {
            weth.withdraw(balanceWETH);

            _sendETH(_recipient, balanceWETH);
        }
    }

    /**
     * @notice Sweeps the total amount of tokens to inside the contract to the recipient
     * @param _token ERC20 token address
     * @param _recipient The destination address
     * @return amount Transferred amount of the token
     */
    function sweepToken(IERC20 _token, address _recipient) public payable returns (uint256 amount) {
        amount = _token.balanceOf(address(this));

        if (amount > 0) {
            _token.safeTransfer(_recipient, amount);
        }
    }

    /**
     * @notice Transfer ETH to the destination
     * @param _recipient The destination address
     * @param _amount Ether amount
     */
    function _sendETH(address _recipient, uint256 _amount) internal {
        if (_amount == 0) {
            revert InvalidAmountToTransfer();
        }

        (bool success,) = _recipient.call{value: _amount}("");

        if (!success) {
            revert FailedToSendEther(msg.sender, _recipient);
        }
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.18;

/**
 * @title Handles multicall function
 * @author Pino development team
 */
contract Multicall {
    uint256 private constant NOT_ENTERED = 1;
    uint256 private constant ENTERED = 2;
    uint256 private _status;

    /**
     * @notice Thrown when the nonETHReuse modifier is called twice in the multicall
     */
    error EtherReuseGuardCall();

    /**
     * @dev Prevents a caller from calling multiple functions that work with ETH in a transaction
     */
    modifier nonETHReuse() {
        _nonReuseBefore();
        _;
    }

    /**
     * @notice Sets status to NOT_ENTERED
     */
    constructor() payable {
        _status = NOT_ENTERED;
    }

    /**
     * @notice Multiple calls on proxy functions
     * @param _calldata An array of calldata that is called one by one
     * @dev The other param is for the referral program of the Pino server
     */
    function multicall(bytes[] calldata _calldata, uint256) external payable {
        // Unlock ether locker just in case if it was locked before
        unlockETHReuse();

        // Loop through each calldata and execute them
        for (uint256 i = 0; i < _calldata.length;) {
            (bool success, bytes memory result) = address(this).delegatecall(_calldata[i]);

            // Check if the call was successful or not
            if (!success) {
                // Next 7 lines from https://ethereum.stackexchange.com/a/83577
                if (result.length < 68) revert();

                assembly {
                    result := add(result, 0x04)
                }

                revert(abi.decode(result, (string)));
            }

            // Increment variable i more efficiently
            unchecked {
                ++i;
            }
        }

        /*
         * To ensure proper execution, unlock reusability for future use.
         * In some cases, the caller might invoke a function with the 'nonETHReuse'
         * modifier directly, bypassing the 'unlockETHReuse' step at the beginning of the
         * multicall. This would render the function unusable if not unlocked here.
         */
        unlockETHReuse();
    }

    /**
     * @notice Unlocks the reentrancy
     * @dev Should be used before and after all the calls
     */
    function unlockETHReuse() internal {
        _status = NOT_ENTERED;
    }

    function _nonReuseBefore() private {
        // On the first call to nonETHReuse, _status will be NOT_ENTERED
        if (_status == ENTERED) {
            revert EtherReuseGuardCall();
        }

        // Any calls to nonETHReuse after this point will fail
        _status = ENTERED;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.18;

import {IPermit2} from "../interfaces/IPermit2.sol";

/**
 * @title Permit2 SignatureTransfer functions
 * @author Pino development team
 */
contract Permit {
    IPermit2 public immutable permit2;

    /**
     * @notice Sets permit2 contract address
     * @param _permit2 Permit2 contract address
     */
    constructor(address _permit2) payable {
        permit2 = IPermit2(_permit2);
    }

    /**
     * @notice Transfers 1 token from user to the contract using Permit2
     * @param _permit PermitTransferFrom data struct
     * @param _signature EIP712 Signature of the Permit2 data structure
     */
    function permitTransferFrom(IPermit2.PermitTransferFrom calldata _permit, bytes calldata _signature)
        public
        payable
    {
        permit2.permitTransferFrom(
            _permit,
            IPermit2.SignatureTransferDetails({to: address(this), requestedAmount: _permit.permitted.amount}),
            msg.sender,
            _signature
        );
    }

    /**
     * @notice Transfers multiple tokens from user to the contract using Permit2
     * @param _permit permitBatchTransferFrom data struct
     * @param _signature EIP712 Signature of the Permit2 data structure
     */
    function permitBatchTransferFrom(IPermit2.PermitBatchTransferFrom calldata _permit, bytes calldata _signature)
        external
        payable
    {
        uint256 tokensLen = _permit.permitted.length;

        IPermit2.SignatureTransferDetails[] memory details = new IPermit2.SignatureTransferDetails[](tokensLen);

        for (uint256 i = 0; i < tokensLen;) {
            details[i].to = address(this);
            details[i].requestedAmount = _permit.permitted[i].amount;

            unchecked {
                ++i;
            }
        }

        permit2.permitTransferFrom(_permit, details, msg.sender, _signature);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.18;

/**
 * @title Invest proxy contract
 * @author Pino development team
 * @notice Interacts with Lido and SavingsDai
 */
interface IInvest {
    /**
     * @notice Emitted when a token is deposited
     * @param _caller Address of the caller of the transaction
     * @param _recipient The recipient that received the tokens
     * @param _fromToken Address of the token that was sent
     * @param _toToken Address of the token that was received
     * @param _amount Amount of the sent token
     */
    event Deposit(address _caller, address _recipient, address _fromToken, address _toToken, uint256 _amount);

    /**
     * @notice Sends ETH to the Lido protocol and transfers ST_ETH to the recipient
     * @param _proxyFeeInWei Fee of the proxy contract
     * @param _recipient The destination address that will receive ST_ETH
     * @return steth Amount of ST_ETH token that is being transferred to the recipient
     */
    function ethToStETH(address _recipient, uint256 _proxyFeeInWei) external payable returns (uint256 steth);

    /**
     * @notice Converts ETH to WST_ETH and transfers WST_ETH to the recipient
     * @param _proxyFeeInWei Fee of the proxy contract
     * @param _recipient The destination address that will receive WST_ETH
     */
    function ethToWstETH(address _recipient, uint256 _proxyFeeInWei) external payable;

    /**
     * @notice Submits WETH to Lido protocol and transfers ST_ETH to the recipient
     * @param _amount Amount of WETH to submit to ST_ETH contract
     * @param _recipient The destination address that will receive ST_ETH
     * @dev For security reasons, it is not possible to run functions
     * inside of this function separately through a multicall
     * @return stethAmount Amount of ST_ETH token that is being transferred to msg.sender
     */
    function wethToStETH(uint256 _amount, address _recipient) external payable returns (uint256 stethAmount);

    /**
     * @notice Submits WETH to Lido protocol and transfers WST_ETH to msg.sender
     * @param _amount Amount of WETH to submit to get WST_ETH
     * @param _recipient The destination address that will receive WST_ETH
     */
    function wethToWstETH(uint256 _amount, address _recipient) external payable;

    /**
     * @notice Wraps ST_ETH to WST_ETH and transfers it to msg.sender
     * @param _amount Amount to convert to WST_ETH
     * @param _recipient The destination address that will receive WST_ETH
     * @return wrapped The amount of wrapped WstETH token
     */
    function stETHToWstETH(uint256 _amount, address _recipient) external payable returns (uint256 wrapped);

    /**
     * @notice Unwraps WST_ETH to ST_ETH and transfers it to the recipient
     * @param _amount Amount of WstETH to unwrap
     * @param _recipient The destination address that will receive StETH
     * @return unwrapped The amount of StETH unwrapped
     */
    function wstETHToStETH(uint256 _amount, address _recipient) external payable returns (uint256 unwrapped);

    /**
     * @notice Transfers DAI to SavingsDai and transfers SDai to the recipient
     * @param _amount Amount of DAI to invest
     * @param _recipient The destination address that will receive StETH
     * @return deposited Returns the amount of shares that recipient received after deposit
     */
    function daiToSDai(uint256 _amount, address _recipient) external payable returns (uint256 deposited);

    /**
     * @notice Transfers SDAI to SavingsDai and transfers Dai to the recipient
     * @param _amount Amount of SDAI to withdraw
     * @param _recipient The destination address that will receive DAI
     * @return withdrew Returns the amount of shares that were burned
     */
    function sDaiToDai(uint256 _amount, address _recipient) external payable returns (uint256 withdrew);
}

// SPDX-License-Identifier: GPL-3.0
pragma solidity 0.8.18;

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

/**
 * @title Liquid staking pool
 *
 * For the high-level description of the pool operation please refer to the paper.
 * Pool manages withdrawal keys and fees. It receives ether submitted by users on the ETH 1 side
 * and stakes it via the deposit_contract.sol contract. It doesn't hold ether on it's balance,
 * only a small portion (buffer) of it.
 * It also mints new tokens for rewards generated at the ETH 2.0 side.
 *
 * At the moment withdrawals are not possible in the beacon chain and there's no workaround.
 * Pool will be upgraded to an actual implementation when withdrawals are enabled
 * (Phase 1.5 or 2 of Eth2 launch, likely late 2022 or 2023).
 */
interface ILido is ISTETH {
    function totalSupply() external view returns (uint256);
    function getTotalShares() external view returns (uint256);

    /**
     * @notice Adds eth to the pool
     * @return StETH Amount of StETH generated
     */
    function submit(address _referral) external payable returns (uint256 StETH);
}

// SPDX-License-Identifier: AGPL-3.0-or-later
pragma solidity 0.8.18;

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

/**
 * @notice Savings Dai Interface
 */
interface ISDai is IERC20 {
    function dai() external view returns (address);
    function deposit(uint256, address, uint16) external returns (uint256);
    function mint(uint256, address) external returns (uint256);
    function mint(uint256, address, uint16) external returns (uint256);
    function redeem(uint256, address, address) external returns (uint256);
    function deposit(uint256 amount, address receiver) external returns (uint256);
    function withdraw(uint256 amount, address receiver, address owner) external returns (uint256);
}

// SPDX-License-Identifier: GPL-3.0
pragma solidity 0.8.18;

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

interface ISTETH is IERC20 {
    function sharesOf(address _account) external view returns (uint256);
    function transferShares(address _recipient, uint256 _sharesAmount) external;
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.18;

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

interface IWstETH is IERC20 {
    function wrap(uint256 _stETHAmount) external returns (uint256);
    function unwrap(uint256 _wstETHAmount) external returns (uint256);
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.18;

/**
 * @title SignatureTransfer
 * @notice Handles ERC20 token transfers through signature based actions
 * @dev Requires user's token approval on the Permit2 contract
 */
interface IPermit2 {
    /**
     * @notice The token and amount details for a transfer signed in the permit transfer signature
     */
    struct TokenPermissions {
        // ERC20 token address
        address token;
        // the maximum amount that can be spent
        uint256 amount;
    }

    /**
     * @notice The signed permit message for a single token transfer
     */
    struct PermitTransferFrom {
        TokenPermissions permitted;
        // a unique value for every token owner's signature to prevent signature replays
        uint256 nonce;
        // deadline on the permit signature
        uint256 deadline;
    }

    /**
     * @notice Specifies the recipient address and amount for batched transfers.
     * @dev Recipients and amounts correspond to the index of the signed token permissions array.
     * @dev Reverts if the requested amount is greater than the permitted signed amount.
     */
    struct SignatureTransferDetails {
        // recipient address
        address to;
        // spender requested amount
        uint256 requestedAmount;
    }

    /**
     * @notice Used to reconstruct the signed permit message for multiple token transfers
     * @dev Do not need to pass in spender address as it is required that it is msg.sender
     * @dev Note that a user still signs over a spender address
     */
    struct PermitBatchTransferFrom {
        // the tokens and corresponding amounts permitted for a transfer
        TokenPermissions[] permitted;
        // a unique value for every token owner's signature to prevent signature replays
        uint256 nonce;
        // deadline on the permit signature
        uint256 deadline;
    }

    /**
     * @notice Transfers a token using a signed permit message
     * @dev Reverts if the requested amount is greater than the permitted signed amount
     * @param permit The permit data signed over by the owner
     * @param owner The owner of the tokens to transfer
     * @param transferDetails The spender's requested transfer details for the permitted token
     * @param signature The signature to verify
     */
    function permitTransferFrom(
        PermitTransferFrom calldata permit,
        SignatureTransferDetails calldata transferDetails,
        address owner,
        bytes calldata signature
    ) external;

    /**
     * @notice Transfers multiple tokens using a signed permit message
     * @param permit The permit data signed over by the owner
     * @param owner The owner of the tokens to transfer
     * @param transferDetails Specifies the recipient and requested amount for the token transfer
     * @param signature The signature to verify
     */
    function permitTransferFrom(
        PermitBatchTransferFrom calldata permit,
        SignatureTransferDetails[] calldata transferDetails,
        address owner,
        bytes calldata signature
    ) external;
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.18;

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

/**
 * @notice IWETH9 WETH interface
 */
interface IWETH9 is IERC20 {
    function deposit() external payable;
    function withdraw(uint256 wad) external;
}

{
  "evmVersion": "istanbul",
  "optimizer": {
    "enabled": true,
    "runs": 1000
  },
  "metadata": {
    "bytecodeHash": "none"
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

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[{"inputs":[{"internalType":"address","name":"_permit2","type":"address"},{"internalType":"address","name":"_weth","type":"address"},{"internalType":"contract ILido","name":"_stETH","type":"address"},{"internalType":"contract IWstETH","name":"_wstETH","type":"address"},{"internalType":"contract ISDai","name":"_sDai","type":"address"}],"stateMutability":"payable","type":"constructor"},{"inputs":[],"name":"EtherReuseGuardCall","type":"error"},{"inputs":[{"internalType":"address","name":"_caller","type":"address"},{"internalType":"address","name":"_recipient","type":"address"}],"name":"FailedToSendEther","type":"error"},{"inputs":[],"name":"InvalidAmountToTransfer","type":"error"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"_caller","type":"address"},{"indexed":false,"internalType":"address","name":"_recipient","type":"address"},{"indexed":false,"internalType":"address","name":"_fromToken","type":"address"},{"indexed":false,"internalType":"address","name":"_toToken","type":"address"},{"indexed":false,"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"Deposit","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferStarted","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"},{"inputs":[],"name":"acceptOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract IERC20","name":"_token","type":"address"},{"internalType":"address[]","name":"_spenders","type":"address[]"}],"name":"approveToken","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"dai","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_amount","type":"uint256"},{"internalType":"address","name":"_recipient","type":"address"}],"name":"daiToSDai","outputs":[{"internalType":"uint256","name":"deposited","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"_recipient","type":"address"},{"internalType":"uint256","name":"_proxyFeeInWei","type":"uint256"}],"name":"ethToStETH","outputs":[{"internalType":"uint256","name":"stethAmount","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"_recipient","type":"address"},{"internalType":"uint256","name":"_proxyFeeInWei","type":"uint256"}],"name":"ethToWstETH","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"bytes[]","name":"_calldata","type":"bytes[]"},{"internalType":"uint256","name":"","type":"uint256"}],"name":"multicall","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pendingOwner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"permit2","outputs":[{"internalType":"contract IPermit2","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"components":[{"components":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"internalType":"struct IPermit2.TokenPermissions[]","name":"permitted","type":"tuple[]"},{"internalType":"uint256","name":"nonce","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"internalType":"struct IPermit2.PermitBatchTransferFrom","name":"_permit","type":"tuple"},{"internalType":"bytes","name":"_signature","type":"bytes"}],"name":"permitBatchTransferFrom","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"components":[{"components":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"internalType":"struct IPermit2.TokenPermissions","name":"permitted","type":"tuple"},{"internalType":"uint256","name":"nonce","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"internalType":"struct IPermit2.PermitTransferFrom","name":"_permit","type":"tuple"},{"internalType":"bytes","name":"_signature","type":"bytes"}],"name":"permitTransferFrom","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_amount","type":"uint256"},{"internalType":"address","name":"_recipient","type":"address"}],"name":"sDaiToDai","outputs":[{"internalType":"uint256","name":"withdrew","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"sdai","outputs":[{"internalType":"contract ISDai","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_amount","type":"uint256"},{"internalType":"address","name":"_recipient","type":"address"}],"name":"stETHToWstETH","outputs":[{"internalType":"uint256","name":"wrapped","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"steth","outputs":[{"internalType":"contract ILido","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"contract IERC20","name":"_token","type":"address"},{"internalType":"address","name":"_recipient","type":"address"}],"name":"sweepToken","outputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_recipient","type":"address"}],"name":"unwrapWETH9","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"weth","outputs":[{"internalType":"contract IWETH9","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_amount","type":"uint256"},{"internalType":"address","name":"_recipient","type":"address"}],"name":"wethToStETH","outputs":[{"internalType":"uint256","name":"stethAmount","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_amount","type":"uint256"},{"internalType":"address","name":"_recipient","type":"address"}],"name":"wethToWstETH","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"_recipient","type":"address"}],"name":"withdrawAdmin","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_proxyFeeInWei","type":"uint256"}],"name":"wrapETH","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_amount","type":"uint256"},{"internalType":"address","name":"_recipient","type":"address"}],"name":"wstETHToStETH","outputs":[{"internalType":"uint256","name":"unwrapped","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"wsteth","outputs":[{"internalType":"contract IWstETH","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"stateMutability":"payable","type":"receive"}]

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000000000000000000000000000000000022d473030f116ddee9f6b43ac78ba3000000000000000000000000c02aaa39b223fe8d0a0e5c4f27ead9083c756cc2000000000000000000000000ae7ab96520de3a18e5e111b5eaab095312d7fe840000000000000000000000007f39c581f595b53c5cb19bd0b3f8da6c935e2ca000000000000000000000000083f20f44975d03b1b09e64809b757c47f942beea

-----Decoded View---------------
Arg [0] : _permit2 (address): 0x000000000022D473030F116dDEE9F6B43aC78BA3
Arg [1] : _weth (address): 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2
Arg [2] : _stETH (address): 0xae7ab96520DE3A18E5e111B5EaAb095312D7fE84
Arg [3] : _wstETH (address): 0x7f39C581F595B53c5cb19bD0b3f8dA6c935E2Ca0
Arg [4] : _sDai (address): 0x83F20F44975D03b1b09e64809B757c47f942BEeA

-----Encoded View---------------
5 Constructor Arguments found :
Arg [0] : 000000000000000000000000000000000022d473030f116ddee9f6b43ac78ba3
Arg [1] : 000000000000000000000000c02aaa39b223fe8d0a0e5c4f27ead9083c756cc2
Arg [2] : 000000000000000000000000ae7ab96520de3a18e5e111b5eaab095312d7fe84
Arg [3] : 0000000000000000000000007f39c581f595b53c5cb19bd0b3f8da6c935e2ca0
Arg [4] : 00000000000000000000000083f20f44975d03b1b09e64809b757c47f942beea