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// SPDX-License-Identifier: MIT
pragma solidity 0.8.10;


import "../interfaces/IStaker.sol";
import "../interfaces/IRewardDistribution.sol";
import '@openzeppelin/contracts/token/ERC20/IERC20.sol';
import '@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol';


/*
Main interface for the whitelisted proxy contract.

**This contract is meant to be able to be replaced for upgrade purposes. use IVoterProxy.operator() to always reference the current booster

*/
contract FraxtalBooster{
    using SafeERC20 for IERC20;

    address public immutable proxy;
    address public immutable vefxs;
    address public owner;
    address public pendingOwner;
    address public voteDelegate;
    address public fxsDepositor;
    address public vefxsRewardDistribution;
    address public vefxsFeeToken;
    address public cvxfxsRewardReceiver;
    address public extraRewardDistribution;
    address public bridgeReceiver;
    uint256 public platformVefxsFees;
    address public platformReceiver;
    bool public isShutdown;



    constructor(address _proxy, address _vefxs) {
        proxy = _proxy;
        vefxs = _vefxs;
        isShutdown = false;
        owner = msg.sender;
        voteDelegate = msg.sender;    
    }

    /////// Owner Section /////////

    modifier onlyOwner() {
        require(owner == msg.sender, "!auth");
        _;
    }
    modifier onlyDepositor() {
        require(fxsDepositor == msg.sender, "!deposit");
        _;
    }

    //set pending owner
    function setPendingOwner(address _po) external onlyOwner{
        pendingOwner = _po;
        emit SetPendingOwner(_po);
    }

    function _proxyCall(address _to, bytes memory _data) internal{
        (bool success,) = IStaker(proxy).execute(_to,uint256(0),_data);
        require(success, "Proxy Call Fail");
    }

    //claim ownership
    function acceptPendingOwner() external {
        require(pendingOwner != address(0) && msg.sender == pendingOwner, "!p_owner");

        owner = pendingOwner;
        pendingOwner = address(0);
        emit OwnerChanged(owner);
    }

    //shutdown this contract.
    function shutdownSystem() external onlyOwner{
        //This version of booster does not require any special steps before shutting down
        //and can just immediately be set.
        isShutdown = true;
        emit Shutdown();
    }

    //set snapshot voting delegate
    function setDelegate(address _delegateContract, address _delegate, bytes32 _space) external onlyOwner{
        bytes memory data = abi.encodeWithSelector(bytes4(keccak256("setDelegate(bytes32,address)")), _space, _delegate);
        _proxyCall(_delegateContract,data);
        emit DelegateSet(_delegate);
    }

    //set on chain governance voting delegate
    function setOnChainDelegate(address _delegateContract, address _delegate) external onlyOwner{
        bytes memory data = abi.encodeWithSelector(bytes4(keccak256("delegate(address)")), _delegate);
        _proxyCall(_delegateContract,data);
        voteDelegate = _delegate;
        emit OnChainDelegateSet(_delegate);
    }

    function castVote(address _votingContract, uint256 _proposalId, bool _support) external{
        require(msg.sender == voteDelegate, "!voteDelegate");
        bytes memory data = abi.encodeWithSelector(bytes4(keccak256("castVote(uint256,uint8)")), _proposalId, _support?uint8(1):uint8(0));
        _proxyCall(_votingContract,data);
    }

    function setFxsDepositor(address _deposit) external onlyOwner{
        fxsDepositor = _deposit;
        emit SetFxsDepositor(_deposit);
    }

    function setVefxsDistro(address _distro, address _feeToken, address _cvxFeeReceiver) external onlyOwner{
        require(_distro != address(0),"invalid");
        require(_feeToken != address(0),"invalid");
        require(_cvxFeeReceiver != address(0),"invalid");
        vefxsRewardDistribution = _distro;
        vefxsFeeToken = _feeToken;
        cvxfxsRewardReceiver = _cvxFeeReceiver;
        emit SetVefxsDistro(_distro, _feeToken, _cvxFeeReceiver);
    }

    function setExtraDistro(address _distro, address _bridgeReceiver) external onlyOwner{
        require(_distro != address(0),"invalid");
        require(vefxsFeeToken != address(0),"!feeToken");
        extraRewardDistribution = _distro;
        bridgeReceiver = _bridgeReceiver;
        IERC20(vefxsFeeToken).approve(extraRewardDistribution,type(uint256).max);
        emit SetExtraDistro(_distro,_bridgeReceiver);
    }

    function setFeeInfo(address _platformReceiver, uint256 _fee) external onlyOwner{
        require(_platformReceiver != address(0),"invalid receiver");
        require(_fee <= 1e17, "invalid fee");
        platformReceiver = _platformReceiver;
        platformVefxsFees = _fee;
        emit SetFeeInfo(_platformReceiver, _fee);
    }

    //recover tokens on this contract
    function recoverERC20(address _tokenAddress, uint256 _tokenAmount, address _withdrawTo) external onlyOwner{
        IERC20(_tokenAddress).safeTransfer(_withdrawTo, _tokenAmount);
        emit Recovered(_tokenAddress, _tokenAmount);
    }

    //recover tokens on the proxy
    function recoverERC20FromProxy(address _tokenAddress, uint256 _tokenAmount, address _withdrawTo) external onlyOwner{

        bytes memory data = abi.encodeWithSelector(bytes4(keccak256("transfer(address,uint256)")), _withdrawTo, _tokenAmount);
        _proxyCall(_tokenAddress,data);

        emit Recovered(_tokenAddress, _tokenAmount);
    }

    //create a new lock
    function createLock(uint256 _value, uint128 _unlockTime) external onlyOwner{
        bytes memory data = abi.encodeWithSelector(bytes4(keccak256("createLock(address,uint256,uint128)")), proxy, _value, _unlockTime);
        _proxyCall(vefxs,data);
    }

    //arbitrary execute
    function execute(address _to, bytes calldata _data) external onlyOwner{
        _proxyCall(_to,_data);
    }

    //////// End Owner Section ///////////

    //// Depositor ///
    function increaseAmount(uint256 _value, uint128 _lockIndex) external onlyDepositor{
        bytes memory data = abi.encodeWithSelector(bytes4(keccak256("increaseAmount(uint256,uint128)")), _value, _lockIndex);
        _proxyCall(vefxs,data);
    }

    function increaseUnlockTime(uint128 _unlockTime, uint128 _lockIndex) external onlyDepositor{
        bytes memory data = abi.encodeWithSelector(bytes4(keccak256("increaseUnlockTime(uint128,uint128)")), _unlockTime, _lockIndex);
        _proxyCall(vefxs,data);
    }

    /// End Depositor ///



    //claim and distribute fees
    function claimFees() external {
        uint256 _balance = IERC20(vefxsFeeToken).balanceOf(proxy);
        bytes memory data = abi.encodeWithSelector(bytes4(keccak256("getYield()")));
        _proxyCall(vefxsRewardDistribution,data);
        _balance = IERC20(vefxsFeeToken).balanceOf(proxy) - _balance;

        uint256 platformshare = _balance * platformVefxsFees / 10000; 
        data = abi.encodeWithSelector(bytes4(keccak256("transfer(address,uint256)")), platformReceiver, platformshare);
        _proxyCall(vefxsFeeToken,data);
        emit ClaimFees(platformReceiver,platformshare);
        _balance -= platformshare;
        data = abi.encodeWithSelector(bytes4(keccak256("transfer(address,uint256)")), cvxfxsRewardReceiver, _balance);
        _proxyCall(vefxsFeeToken,data);
        emit ClaimFees(cvxfxsRewardReceiver, _balance);

        //pull rewards from bridge
        uint256 bridgeBalance = IERC20(vefxsFeeToken).balanceOf(bridgeReceiver);
        data = abi.encodeWithSelector(bytes4(keccak256("withdrawTo(address,uint256,address)")),vefxsFeeToken,bridgeBalance,address(this));
        _proxyCall(bridgeReceiver,data);

        //enqueue rewards
        IRewardDistribution(extraRewardDistribution).queueNewRewards(bridgeBalance);

        //claim rewards
        data = abi.encodeWithSelector(bytes4(keccak256("getReward(address)")), address(this));
        _proxyCall(extraRewardDistribution,data);
        IERC20(vefxsFeeToken).safeTransfer(cvxfxsRewardReceiver, IERC20(vefxsFeeToken).balanceOf(address(this)));
    }

    /* ========== EVENTS ========== */
    event SetPendingOwner(address indexed _address);
    event SetFxsDepositor(address indexed _address);
    event SetVefxsDistro(address indexed _vefxsdistro, address _token, address _receiver);
    event SetExtraDistro(address indexed _distro, address _bridgeReceiver);
    event SetFeeInfo(address indexed _platformreceiver, uint256 _fee);
    event ClaimFees(address indexed _receiver, uint256 _amount );
    event OwnerChanged(address indexed _address);
    event Shutdown();
    event DelegateSet(address indexed _address);
    event OnChainDelegateSet(address indexed _address);
    event Recovered(address indexed _token, uint256 _amount);
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.10;

interface IStaker{
    function createLock(uint256, uint256) external returns (bool);
    function increaseAmount(uint256) external returns (bool);
    function increaseTime(uint256) external returns (bool);
    function release() external returns (bool);
    function checkpointFeeRewards(address) external;
    function claimFees(address,address,address) external returns (uint256);
    function voteGaugeWeight(address,uint256) external returns (bool);
    function operator() external view returns (address);
    function execute(address _to, uint256 _value, bytes calldata _data) external returns (bool, bytes memory);
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.10;

interface IRewardDistribution{
    function getReward(address _claimTo) external returns(bool);
    function queueNewRewards(uint256 _rewards) external returns(bool);
    function totalSupply() external view returns (uint256);
    function balanceOf(address _account) external view returns (uint256);
}

// 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 (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 v4.9.4) (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.
 *
 * ==== Security Considerations
 *
 * There are two important considerations concerning the use of `permit`. The first is that a valid permit signature
 * expresses an allowance, and it should not be assumed to convey additional meaning. In particular, it should not be
 * considered as an intention to spend the allowance in any specific way. The second is that because permits have
 * built-in replay protection and can be submitted by anyone, they can be frontrun. A protocol that uses permits should
 * take this into consideration and allow a `permit` call to fail. Combining these two aspects, a pattern that may be
 * generally recommended is:
 *
 * ```solidity
 * function doThingWithPermit(..., uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) public {
 *     try token.permit(msg.sender, address(this), value, deadline, v, r, s) {} catch {}
 *     doThing(..., value);
 * }
 *
 * function doThing(..., uint256 value) public {
 *     token.safeTransferFrom(msg.sender, address(this), value);
 *     ...
 * }
 * ```
 *
 * Observe that: 1) `msg.sender` is used as the owner, leaving no ambiguity as to the signer intent, and 2) the use of
 * `try/catch` allows the permit to fail and makes the code tolerant to frontrunning. (See also
 * {SafeERC20-safeTransferFrom}).
 *
 * Additionally, note that smart contract wallets (such as Argent or Safe) are not able to produce permit signatures, so
 * contracts should have entry points that don't rely on permit.
 */
interface IERC20Permit {
    /**
     * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
     * given ``owner``'s signed approval.
     *
     * IMPORTANT: The same issues {IERC20-approve} has related to transaction
     * ordering also apply here.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `deadline` must be a timestamp in the future.
     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
     * over the EIP712-formatted function arguments.
     * - the signature must use ``owner``'s current nonce (see {nonces}).
     *
     * For more information on the signature format, see the
     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
     * section].
     *
     * CAUTION: See Security Considerations above.
     */
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

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

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated 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);
}

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

• No Contract Security Audit Submitted- Submit Audit Here

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ion"},{"inputs":[{"internalType":"address","name":"_tokenAddress","type":"address"},{"internalType":"uint256","name":"_tokenAmount","type":"uint256"},{"internalType":"address","name":"_withdrawTo","type":"address"}],"name":"recoverERC20","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_tokenAddress","type":"address"},{"internalType":"uint256","name":"_tokenAmount","type":"uint256"},{"internalType":"address","name":"_withdrawTo","type":"address"}],"name":"recoverERC20FromProxy","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_delegateContract","type":"address"},{"internalType":"address","name":"_delegate","type":"address"},{"internalType":"bytes32","name":"_space","type":"bytes32"}],"name":"setDelegate","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_distro","type":"address"},{"internalType":"address","name":"_bridgeReceiver","type":"address"}],"name":"setExtraDistro","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_platformReceiver","type":"address"},{"internalType":"uint256","name":"_fee","type":"uint256"}],"name":"setFeeInfo","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_deposit","type":"address"}],"name":"setFxsDepositor","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_delegateContract","type":"address"},{"internalType":"address","name":"_delegate","type":"address"}],"name":"setOnChainDelegate","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_po","type":"address"}],"name":"setPendingOwner","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_distro","type":"address"},{"internalType":"address","name":"_feeToken","type":"address"},{"internalType":"address","name":"_cvxFeeReceiver","type":"address"}],"name":"setVefxsDistro","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"shutdownSystem","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"vefxs","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"vefxsFeeToken","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"vefxsRewardDistribution","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"voteDelegate","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"}]

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00000000000000000000000059cfcd384746ec3035299d90782be065e466800b000000000000000000000000007fd070a7e1b0fa1364044a373ac1339bad89cf

-----Decoded View---------------
Arg [0] : _proxy (address): 0x59CFCD384746ec3035299D90782Be065e466800B
Arg [1] : _vefxs (address): 0x007FD070a7E1B0fA1364044a373Ac1339bAD89CF

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 00000000000000000000000059cfcd384746ec3035299d90782be065e466800b
Arg [1] : 000000000000000000000000007fd070a7e1b0fa1364044a373ac1339bad89cf