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// SPDX-License-Identifier: AGPL-3.0-or-later

pragma solidity 0.8.17;

import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import { SafeERC20 } from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import { Address } from "@openzeppelin/contracts/utils/Address.sol";
import { ICurvePool } from "../interfaces/ICurvePool.sol";
import { IVault } from "../interfaces/IVault.sol";

/**
 * @title ETHAdapter
 * @notice A Proxy contract responsible for converting ETH into stETH and depositing into the Vault
 * @author Pods Finance
 */
contract ETHAdapter {
    using SafeERC20 for IERC20;
    using Address for address payable;

    /**
     * @notice Curve's pool ETH <> stETH
     */
    ICurvePool public immutable pool;

    /**
     * @notice ETH coin index in the Curve Pool
     */
    int128 public constant ETH_INDEX = 0;

    /**
     * @notice stETH coin index in the Curve Pool
     */
    int128 public constant STETH_INDEX = 1;

    /**
     * @notice ETH token address representation
     */
    address public constant ETH_ADDRESS = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;

    /**
     * @notice stETH token address representation
     */
    address public constant STETH_ADDRESS = 0xae7ab96520DE3A18E5e111B5EaAb095312D7fE84;

    error ETHAdapter__IncompatibleVault();
    error ETHAdapter__IncompatiblePool();

    constructor(ICurvePool _pool) {
        if (
            _pool.coins(uint256(uint128(ETH_INDEX))) != ETH_ADDRESS ||
            _pool.coins(uint256(uint128(STETH_INDEX))) != STETH_ADDRESS
        ) revert ETHAdapter__IncompatiblePool();
        pool = _pool;
    }

    /**
     * @notice Convert `ethAmount` ETH to stETH using Curve pool
     * @param ethAmount Amount of ETH to convert
     * @return uint256 Amount of stETH received in exchange
     */
    function convertToSTETH(uint256 ethAmount) external view returns (uint256) {
        return pool.get_dy(ETH_INDEX, STETH_INDEX, ethAmount);
    }

    /**
     * @notice Convert 'stETHAmount' stETH to ETH using Curve pool
     * @param stETHAmount Amount of stETH to convert
     * @return uint256 Amount of ETH received in exchange
     */
    function convertToETH(uint256 stETHAmount) external view returns (uint256) {
        return pool.get_dy(STETH_INDEX, ETH_INDEX, stETHAmount);
    }

    /**
     * @notice Deposit `msg.value` of ETH, convert to stETH and deposit into `vault`
     * @param vault Pods' strategy vault that will receive the stETH
     * @param receiver Address that will be the owner of the Vault's shares
     * @param minOutput slippage control. Minimum acceptable amount of stETH
     * @return uint256 Amount of shares returned by vault ERC4626 contract
     */
    function deposit(
        IVault vault,
        address receiver,
        uint256 minOutput
    ) external payable returns (uint256) {
        if (vault.asset() != STETH_ADDRESS) revert ETHAdapter__IncompatibleVault();
        uint256 assets = pool.exchange{ value: msg.value }(ETH_INDEX, STETH_INDEX, msg.value, minOutput);
        IERC20(vault.asset()).safeIncreaseAllowance(address(vault), assets);
        return vault.deposit(assets, receiver);
    }

    /**
     * @notice Redeem `shares` shares, receive stETH, trade stETH for ETH and send to receiver
     * @param vault Pods' strategy vault that will receive the shares and payback stETH
     * @param shares Amount of Vault's shares to redeem
     * @param receiver Address that will receive back the ETH withdrawn from the `vault`
     * @param minOutput slippage control. Minimum acceptable amount of ETH
     * @return uint256 Amount of assets received from Vault ERC4626
     */
    function redeem(
        IVault vault,
        uint256 shares,
        address receiver,
        uint256 minOutput
    ) external returns (uint256) {
        uint256 assets = vault.redeem(shares, address(this), msg.sender);
        _returnETH(vault, receiver, minOutput);
        return assets;
    }

    /**
     * @notice redeemWithPermit `shares` shares, receive stETH, trade stETH for ETH and send to receiver
     * @dev Do not need to approve the shares in advance. The vault tokenized shares supports Permit
     * @param vault Pods' strategy vault that will receive the shares and payback stETH
     * @param shares Amount of Vault's shares to redeem
     * @param receiver Address that will receive back the ETH withdrawn from `vault`
     * @param minOutput slippage control. Minimum acceptable amount of ETH
     * @param deadline deadline that this transaction will be valid
     * @param v recovery id
     * @param r ECDSA signature output
     * @param s ECDSA signature output
     * @return assets Amount of assets received from Vault ERC4626
     */
    function redeemWithPermit(
        IVault vault,
        uint256 shares,
        address receiver,
        uint256 minOutput,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external returns (uint256 assets) {
        vault.permit(msg.sender, address(this), shares, deadline, v, r, s);
        assets = vault.redeem(shares, address(this), msg.sender);
        _returnETH(vault, receiver, minOutput);
    }

    /**
     * @notice Withdraw `assets` assets, receive stETH, trade stETH for ETH and send to receiver
     * @dev Do not need to approve the shares in advance. The vault tokenized shares supports Permit
     * @param vault Pods' strategy vault that will receive the shares and payback stETH
     * @param assets Amount of assets (stETH) to redeem
     * @param receiver Address that will receive back the ETH withdrawn from the Vault
     * @param minOutput slippage control. Minimum acceptable amount of ETH
     * @return shares Amount of shares burned in order to receive assets
     */
    function withdraw(
        IVault vault,
        uint256 assets,
        address receiver,
        uint256 minOutput
    ) external returns (uint256 shares) {
        shares = vault.withdraw(assets, address(this), msg.sender);
        _returnETH(vault, receiver, minOutput);
    }

    /**
     * @notice withdrawWithPermit `assets` assets, receive stETH, trade stETH for ETH and send to receiver
     * @dev Do not need to approve the shares in advance. Vault's tokenized shares supports Permit
     * @param vault Pods' strategy vault that will receive the shares and payback stETH
     * @param assets Amount of assets (stETH) to redeem
     * @param receiver Address that will receive back the ETH withdrawn from the Vault
     * @param minOutput slippage control. Minimum acceptable amount of ETH
     * @param deadline deadline that this transaction will be valid
     * @param v recovery id
     * @param r ECDSA signature output
     * @param s ECDSA signature output
     * @return shares Amount of shares burned in order to receive assets
     */
    function withdrawWithPermit(
        IVault vault,
        uint256 assets,
        address receiver,
        uint256 minOutput,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external returns (uint256 shares) {
        shares = vault.convertToShares(assets);
        vault.permit(msg.sender, address(this), shares, deadline, v, r, s);
        shares = vault.withdraw(assets, address(this), msg.sender);
        _returnETH(vault, receiver, minOutput);
    }

    /* We need this default function because this contract will
        receive ETH from the Curve pool
    */
    receive() external payable {}

    /**
     *  @dev internal function used to convert stETH into ETH and send back
     * to receiver
     */
    function _returnETH(
        IVault vault,
        address receiver,
        uint256 minOutput
    ) internal {
        if (vault.asset() != STETH_ADDRESS) revert ETHAdapter__IncompatibleVault();
        IERC20 asset = IERC20(vault.asset());

        uint256 balance = asset.balanceOf(address(this));
        asset.safeIncreaseAllowance(address(pool), balance);
        pool.exchange(STETH_INDEX, ETH_INDEX, balance, minOutput);

        payable(receiver).sendValue(address(this).balance);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (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 v4.8.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

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

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

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

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

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

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

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

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

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (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
     * ====
     *
     * [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 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: AGPL-3.0-or-later

pragma solidity 0.8.17;

/**
 * @title ICurvePool Curve ETH/stETH StableSwap
 * @notice Curve ETH/stETH StableSwap Interface
 * @author Pods Finance
 */
interface ICurvePool {
    /**
     * @notice Perform an exchange between two coins
     * @dev Index values can be found via the `coins` public getter method
     * @param from Index value for the coin to send
     * @param to Index value of the coin to receive
     * @param input Amount of `from` being exchanged
     * @param minOutput Minimum amount of `to` to receive
     * @return output Actual amount of `to` received
     */
    function exchange(
        int128 from,
        int128 to,
        uint256 input,
        uint256 minOutput
    ) external payable returns (uint256 output);

    /**
     * @notice Check price between two coins
     * @dev Index values can be found via the `coins` public getter method
     * @param from Index value for the coin to send
     * @param to Index value of the coin to receive
     * @param input Amount of `from` being exchanged
     * @return output estimated `to` received
     */
    function get_dy(
        int128 from,
        int128 to,
        uint256 input
    ) external view returns (uint256 output);

    function coins(uint256 index) external view returns (address);
}

// SPDX-License-Identifier: AGPL-3.0-or-later

pragma solidity 0.8.17;

import { IERC20Permit } from "@openzeppelin/contracts/token/ERC20/extensions/draft-IERC20Permit.sol";
import { IERC4626 } from "@openzeppelin/contracts/interfaces/IERC4626.sol";

/**
 * @title IVault
 * @notice Interface contract for Pods Vault
 * @author Pods Finance
 */
interface IVault is IERC4626, IERC20Permit {
    error IVault__CallerIsNotTheController();
    error IVault__NotProcessingDeposits();
    error IVault__AlreadyProcessingDeposits();
    error IVault__ForbiddenWhileProcessingDeposits();
    error IVault__ZeroAssets();
    error IVault__MigrationNotAllowed();
    error IVault__AssetsUnderMinimumAmount(uint256 assets);

    event FeeCollected(uint256 fee);
    event RoundStarted(uint32 indexed roundId, uint256 amountAddedToStrategy);
    event RoundEnded(uint32 indexed roundId);
    event DepositProcessed(address indexed owner, uint32 indexed roundId, uint256 assets, uint256 shares);
    event DepositRefunded(address indexed owner, uint32 indexed roundId, uint256 assets);
    event Migrated(address indexed caller, address indexed from, address indexed to, uint256 assets, uint256 shares);

    /**
     * @dev Describes the vault state variables.
     */
    struct VaultState {
        uint256 processedDeposits;
        uint256 totalIdleAssets;
        uint32 currentRoundId;
        uint40 lastEndRoundTimestamp;
        bool isProcessingDeposits;
    }

    struct Fractional {
        uint256 numerator;
        uint256 denominator;
    }

    /**
     * @notice Returns the current round ID.
     */
    function currentRoundId() external view returns (uint32);

    /**
     * @notice Determines whether the Vault is in the processing deposits state.
     * @dev While it's processing deposits, `processDeposits` can be called and new shares can be created.
     * During this period deposits, mints, withdraws and redeems are blocked.
     */
    function isProcessingDeposits() external view returns (bool);

    /**
     * @notice Returns the amount of processed deposits entering the next round.
     */
    function processedDeposits() external view returns (uint256);

    /**
     * @notice Returns the fee charged on withdraws.
     */
    function getWithdrawFeeRatio() external view returns (uint256);

    /**
     * @notice Returns the vault controller
     */
    function controller() external view returns (address);

    /**
     * @notice Outputs the amount of asset tokens of an `owner` is idle, waiting for the next round.
     */
    function idleAssetsOf(address owner) external view returns (uint256);

    /**
     * @notice Outputs the amount of asset tokens of an `owner` are either waiting for the next round,
     * deposited or committed.
     */
    function assetsOf(address owner) external view returns (uint256);

    /**
     * @notice Outputs the amount of asset tokens is idle, waiting for the next round.
     */
    function totalIdleAssets() external view returns (uint256);

    /**
     * @notice Outputs current size of the deposit queue.
     */
    function depositQueueSize() external view returns (uint256);

    /**
     * @notice Outputs addresses in the deposit queue
     */
    function queuedDeposits() external view returns (address[] memory);

    /**
     * @notice Deposit ERC20 tokens with permit, a gasless token approval.
     * @dev Mints shares to receiver by depositing exactly amount of underlying tokens.
     *
     * For more information on the signature format, see the EIP2612 specification:
     * https://eips.ethereum.org/EIPS/eip-2612#specification
     */
    function depositWithPermit(
        uint256 assets,
        address receiver,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external returns (uint256);

    /**
     * @notice Mint shares with permit, a gasless token approval.
     * @dev Mints exactly shares to receiver by depositing amount of underlying tokens.
     *
     * For more information on the signature format, see the EIP2612 specification:
     * https://eips.ethereum.org/EIPS/eip-2612#specification
     */
    function mintWithPermit(
        uint256 shares,
        address receiver,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external returns (uint256);

    /**
     * @notice Starts the next round, sending the idle funds to the
     * strategy where it should start accruing yield.
     * @return The new round id
     */
    function startRound() external returns (uint32);

    /**
     * @notice Closes the round, allowing deposits to the next round be processed.
     * and opens the window for withdraws.
     */
    function endRound() external;

    /**
     * @notice Withdraw all user assets in unprocessed deposits.
     */
    function refund() external returns (uint256 assets);

    /**
     * @notice Migrate assets from this vault to the next vault.
     * @dev The `newVault` will be assigned by the ConfigurationManager
     */
    function migrate() external;

    /**
     * @notice Handle migrated assets.
     * @return Estimation of shares created.
     */
    function handleMigration(uint256 assets, address receiver) external returns (uint256);

    /**
     * @notice Distribute shares to depositors queued in the deposit queue, effectively including their assets in the next round.
     *
     * @param depositors Array of owner addresses to process
     */
    function processQueuedDeposits(address[] calldata depositors) external;
}

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

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
 *
 * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
 * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
 * need to send a transaction, and thus is not required to hold Ether at all.
 */
interface IERC20Permit {
    /**
     * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
     * given ``owner``'s signed approval.
     *
     * IMPORTANT: The same issues {IERC20-approve} has related to transaction
     * ordering also apply here.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `deadline` must be a timestamp in the future.
     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
     * over the EIP712-formatted function arguments.
     * - the signature must use ``owner``'s current nonce (see {nonces}).
     *
     * For more information on the signature format, see the
     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
     * section].
     */
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

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

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (interfaces/IERC4626.sol)

pragma solidity ^0.8.0;

import "../token/ERC20/IERC20.sol";
import "../token/ERC20/extensions/IERC20Metadata.sol";

/**
 * @dev Interface of the ERC4626 "Tokenized Vault Standard", as defined in
 * https://eips.ethereum.org/EIPS/eip-4626[ERC-4626].
 *
 * _Available since v4.7._
 */
interface IERC4626 is IERC20, IERC20Metadata {
    event Deposit(address indexed sender, address indexed owner, uint256 assets, uint256 shares);

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";

/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 *
 * _Available since v4.1._
 */
interface IERC20Metadata is IERC20 {
    /**
     * @dev Returns the name of the token.
     */
    function name() external view returns (string memory);

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

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

{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

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000000000000000000000000dc24316b9ae028f1497c275eb9192a3ea0f67022

-----Decoded View---------------
Arg [0] : _pool (address): 0xDC24316b9AE028F1497c275EB9192a3Ea0f67022

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 000000000000000000000000dc24316b9ae028f1497c275eb9192a3ea0f67022