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

pragma solidity 0.8.13;

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

        return account.code.length > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

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

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCall(target, data, "Address: low-level call failed");
    }

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

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

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

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

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

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

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

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

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

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

    /**
     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly

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

// SPDX-License-Identifier: MIT
pragma solidity 0.8.13;

import "../YakStrategyV3.sol";
import "../interfaces/IWGAS.sol";
import "../lib/SafeERC20.sol";
import "./../interfaces/ISimpleRouter.sol";

/**
 * @notice BaseStrategy
 */
abstract contract BaseStrategy is YakStrategyV3 {
    using SafeERC20 for IERC20;

    IWGAS internal immutable WGAS;

    struct BaseStrategySettings {
        address gasToken;
        address[] rewards;
        address simpleRouter;
    }

    struct Reward {
        address reward;
        uint256 amount;
    }

    address[] public supportedRewards;
    ISimpleRouter public simpleRouter;

    event AddReward(address rewardToken);
    event RemoveReward(address rewardToken);
    event UpdateRouter(address oldRouter, address newRouter);

    constructor(BaseStrategySettings memory _settings, StrategySettings memory _strategySettings)
        YakStrategyV3(_strategySettings)
    {
        WGAS = IWGAS(_settings.gasToken);

        supportedRewards = _settings.rewards;

        simpleRouter = ISimpleRouter(_settings.simpleRouter);

        require(_strategySettings.minTokensToReinvest > 0, "BaseStrategy::Invalid configuration");

        emit Reinvest(0, 0);
    }

    function updateRouter(address _router) public onlyDev {
        emit UpdateRouter(address(simpleRouter), _router);
        simpleRouter = ISimpleRouter(_router);
    }

    function addReward(address _rewardToken) public onlyDev {
        bool found;
        for (uint256 i = 0; i < supportedRewards.length; i++) {
            if (_rewardToken == supportedRewards[i]) {
                found = true;
            }
        }
        require(!found, "BaseStrategy::Reward already configured!");
        supportedRewards.push(_rewardToken);
        emit AddReward(_rewardToken);
    }

    function removeReward(address _rewardToken) public onlyDev {
        bool found;
        for (uint256 i = 0; i < supportedRewards.length; i++) {
            if (_rewardToken == supportedRewards[i]) {
                found = true;
                supportedRewards[i] = supportedRewards[supportedRewards.length - 1];
            }
        }
        require(found, "BaseStrategy::Reward not configured!");
        supportedRewards.pop();
        emit RemoveReward(_rewardToken);
    }

    function getSupportedRewardsLength() public view returns (uint256) {
        return supportedRewards.length;
    }

    function calculateDepositFee(uint256 _amount) public view returns (uint256) {
        return _calculateDepositFee(_amount);
    }

    function calculateWithdrawFee(uint256 _amount) public view returns (uint256) {
        return _calculateWithdrawFee(_amount);
    }

    /**
     * @notice Deposit tokens to receive receipt tokens
     * @param _amount Amount of tokens to deposit
     */
    function deposit(uint256 _amount) external override {
        _deposit(msg.sender, _amount);
    }

    /**
     * @notice Deposit using Permit
     * @param _amount Amount of tokens to deposit
     * @param _deadline The time at which to expire the signature
     * @param _v The recovery byte of the signature
     * @param _r Half of the ECDSA signature pair
     * @param _s Half of the ECDSA signature pair
     */
    function depositWithPermit(uint256 _amount, uint256 _deadline, uint8 _v, bytes32 _r, bytes32 _s)
        external
        override
    {
        depositToken.permit(msg.sender, address(this), _amount, _deadline, _v, _r, _s);
        _deposit(msg.sender, _amount);
    }

    function depositFor(address _account, uint256 _amount) external override {
        _deposit(_account, _amount);
    }

    function _deposit(address _account, uint256 _amount) internal {
        require(DEPOSITS_ENABLED == true, "BaseStrategy::Deposits disabled");
        _reinvest(true);
        require(
            depositToken.transferFrom(msg.sender, address(this), _amount), "BaseStrategy::Deposit token transfer failed"
        );
        uint256 depositFee = _calculateDepositFee(_amount);
        _mint(_account, getSharesForDepositTokens(_amount - depositFee));
        _stakeDepositTokens(_amount, depositFee);
        emit Deposit(_account, _amount);
    }

    /**
     * @notice Deposit fee bips from underlying farm
     */
    function _getDepositFeeBips() internal view virtual returns (uint256) {
        return 0;
    }

    /**
     * @notice Calculate deposit fee of underlying farm
     * @dev Override if deposit fee is calculated dynamically
     */
    function _calculateDepositFee(uint256 _amount) internal view virtual returns (uint256) {
        uint256 depositFeeBips = _getDepositFeeBips();
        return (_amount * depositFeeBips) / _bip();
    }

    function withdraw(uint256 _amount) external override {
        uint256 depositTokenAmount = getDepositTokensForShares(_amount);
        require(depositTokenAmount > 0, "BaseStrategy::Withdraw amount too low");
        uint256 withdrawAmount = _withdrawFromStakingContract(depositTokenAmount);
        uint256 withdrawFee = _calculateWithdrawFee(depositTokenAmount);
        depositToken.safeTransfer(msg.sender, withdrawAmount - withdrawFee);
        _burn(msg.sender, _amount);
        emit Withdraw(msg.sender, depositTokenAmount);
    }

    /**
     * @notice Withdraw fee bips from underlying farm
     * @dev Important: Do not override if withdraw fee is deducted from the amount returned by _withdrawFromStakingContract
     */
    function _getWithdrawFeeBips() internal view virtual returns (uint256) {
        return 0;
    }

    /**
     * @notice Calculate withdraw fee of underlying farm
     * @dev Override if withdraw fee is calculated dynamically
     * @dev Important: Do not override if withdraw fee is deducted from the amount returned by _withdrawFromStakingContract
     */
    function _calculateWithdrawFee(uint256 _amount) internal view virtual returns (uint256) {
        uint256 withdrawFeeBips = _getWithdrawFeeBips();
        return (_amount * withdrawFeeBips) / _bip();
    }

    function reinvest() external override onlyEOA {
        _reinvest(false);
    }

    function _convertPoolRewardsToRewardToken() private returns (uint256) {
        _getRewards();
        uint256 rewardTokenAmount = rewardToken.balanceOf(address(this));
        uint256 count = supportedRewards.length;
        for (uint256 i = 0; i < count; i++) {
            address reward = supportedRewards[i];
            if (reward == address(WGAS)) {
                uint256 balance = address(this).balance;
                if (balance > 0) {
                    WGAS.deposit{value: balance}();
                }
                if (address(rewardToken) == address(WGAS)) {
                    rewardTokenAmount += balance;
                    continue;
                }
            }
            uint256 amount = IERC20(reward).balanceOf(address(this));
            if (amount > 0 && reward != address(rewardToken)) {
                FormattedOffer memory offer = simpleRouter.query(amount, reward, address(rewardToken));
                rewardTokenAmount += _swap(offer);
            }
        }
        return rewardTokenAmount;
    }

    /**
     * @notice Reinvest rewards from staking contract
     * @param userDeposit Controls whether or not a gas refund is payed to msg.sender
     */
    function _reinvest(bool userDeposit) private {
        uint256 amount = _convertPoolRewardsToRewardToken();
        if (amount > MIN_TOKENS_TO_REINVEST) {
            uint256 devFee = (amount * DEV_FEE_BIPS) / BIPS_DIVISOR;
            if (devFee > 0) {
                rewardToken.safeTransfer(feeCollector, devFee);
            }

            uint256 reinvestFee = userDeposit ? 0 : (amount * REINVEST_REWARD_BIPS) / BIPS_DIVISOR;
            if (reinvestFee > 0) {
                rewardToken.safeTransfer(msg.sender, reinvestFee);
            }

            uint256 depositTokenAmount = _convertRewardTokenToDepositToken(amount - devFee - reinvestFee);

            if (depositTokenAmount > 0) {
                uint256 depositFee = _calculateDepositFee(depositTokenAmount);
                _stakeDepositTokens(depositTokenAmount, depositFee);
                emit Reinvest(totalDeposits(), totalSupply);
            }
        }
    }

    function _convertRewardTokenToDepositToken(uint256 _fromAmount) internal virtual returns (uint256 toAmount) {
        if (address(rewardToken) == address(depositToken)) return _fromAmount;
        FormattedOffer memory offer = simpleRouter.query(_fromAmount, address(rewardToken), address(depositToken));
        return _swap(offer);
    }

    function _stakeDepositTokens(uint256 _amount, uint256 _depositFee) private {
        require(_amount > 0, "BaseStrategy::Stake amount too low");
        _depositToStakingContract(_amount, _depositFee);
    }

    function _swap(FormattedOffer memory _offer) internal returns (uint256 amountOut) {
        if (_offer.amounts.length > 0 && _offer.amounts[_offer.amounts.length - 1] > 0) {
            IERC20(_offer.path[0]).approve(address(simpleRouter), _offer.amounts[0]);
            return simpleRouter.swap(_offer);
        }
        return 0;
    }

    function checkReward() public view override returns (uint256) {
        Reward[] memory rewards = _pendingRewards();
        uint256 estimatedTotalReward = rewardToken.balanceOf(address(this));
        for (uint256 i = 0; i < rewards.length; i++) {
            address reward = rewards[i].reward;
            if (reward == address(WGAS)) {
                rewards[i].amount += address(this).balance;
            }
            if (reward == address(rewardToken)) {
                estimatedTotalReward += rewards[i].amount;
            } else if (reward > address(0)) {
                uint256 balance = IERC20(reward).balanceOf(address(this));
                uint256 amount = balance + rewards[i].amount;
                if (amount > 0) {
                    FormattedOffer memory offer = simpleRouter.query(amount, reward, address(rewardToken));
                    estimatedTotalReward += offer.amounts.length > 1 ? offer.amounts[offer.amounts.length - 1] : 0;
                }
            }
        }
        return estimatedTotalReward;
    }

    function rescueDeployedFunds(uint256 _minReturnAmountAccepted) external override onlyOwner {
        uint256 balanceBefore = depositToken.balanceOf(address(this));
        _emergencyWithdraw();
        uint256 balanceAfter = depositToken.balanceOf(address(this));
        require(
            balanceAfter - balanceBefore >= _minReturnAmountAccepted,
            "BaseStrategy::Emergency withdraw minimum return amount not reached"
        );
        emit Reinvest(totalDeposits(), totalSupply);
        if (DEPOSITS_ENABLED == true) {
            disableDeposits();
        }
    }

    function _bip() internal view virtual returns (uint256) {
        return 10000;
    }

    /* ABSTRACT */
    function _depositToStakingContract(uint256 _amount, uint256 _depositFee) internal virtual;

    function _withdrawFromStakingContract(uint256 _amount) internal virtual returns (uint256 withdrawAmount);

    function _emergencyWithdraw() internal virtual;

    function _getRewards() internal virtual;

    function _pendingRewards() internal view virtual returns (Reward[] memory);
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.13;

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

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

// SPDX-License-Identifier: MIT
pragma solidity 0.8.13;

interface IBooster {
    struct PoolInfo {
        address lptoken;
        address token;
        address gauge;
        address crvRewards;
        bool shutdown;
    }

    function poolInfo(uint256 _pid) external view returns (PoolInfo memory);

    function customMintRatio(uint256 _pid) external view returns (uint256);

    function mintRatio() external view returns (uint256);

    function penaltyShare() external view returns (uint256);

    function reservoirMinter() external view returns (address);

    function cvx() external view returns (address);
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.13;

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

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

    function decimals() external view returns (uint8);

    function totalSupply() external view returns (uint256);

    function balanceOf(address account) external view returns (uint256);

    function transfer(address recipient, uint256 amount) external returns (bool);

    function allowance(address owner, address spender) external view returns (uint256);

    function approve(address spender, uint256 amount) external returns (bool);

    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) external returns (bool);

    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

    event Transfer(address indexed from, address indexed to, uint256 value);
    event Approval(address indexed owner, address indexed spender, uint256 value);
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.13;

interface IPoolDepositor {
    function deposit(address _lptoken, uint256 _amount, uint256 _minLiquidity, bool _stake) external;
    function withdraw(address _lptoken, uint256 _amount, uint256 _minOut, address _recipient) external;
    function getWithdrawAmountOut(address _lptoken, uint256 _amount)
        external
        view
        returns (uint256 amount, uint256 fee);
    function getDepositAmountOut(address _lptoken, uint256 _amount)
        external
        view
        returns (uint256 liquidity, uint256 reward);
    function booster() external view returns (address);
    function lpTokenToPid(address wombatAsset) external view returns (uint256);
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.13;

import "./../router/interfaces/IYakRouter.sol";

interface ISimpleRouter {
    error UnsupportedSwap(address _tokenIn, address _tokenOut);
    error InvalidConfiguration();

    struct SwapConfig {
        bool useYakSwapRouter;
        uint8 yakSwapMaxSteps;
        Path path;
    }

    struct Path {
        address[] adapters;
        address[] tokens;
    }

    function query(uint256 _amountIn, address _tokenIn, address _tokenOut)
        external
        view
        returns (FormattedOffer memory trade);

    function swap(FormattedOffer memory _trade) external returns (uint256 amountOut);
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.13;

interface ITokenMinter {
    function getFactAmounMint(uint256 _amount) external view returns (uint256 amount);
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.13;

import "./IERC20.sol";

interface IWGAS is IERC20 {
    function deposit() external payable;
    function withdraw(uint256) external;
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.13;

interface IWombatAsset {
    function pool() external view returns (address);
    function liability() external view returns (uint120);
    function totalSupply() external view returns (uint256);
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.13;

interface IWombatPool {
    function deposit(address to, uint256 amount, address token, uint256 deadline) external returns (uint256);

    function withdraw(address token, uint256 liquidity, uint256 minimumAmount, address to, uint256 deadline)
        external
        returns (uint256);

    function quotePotentialWithdraw(address token, uint256 liquidity) external view returns (uint256, uint256);
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.13;

interface IWombexRewardPool {
    function claimableRewards(address _account)
        external
        view
        returns (address[] memory tokens, uint256[] memory amounts);
    function balanceOf(address account) external view returns (uint256);
    function getReward() external returns (bool);
    function asset() external view returns (address);
    function withdrawAndUnwrap(uint256 amount, bool claim) external;
    function withdrawAllAndUnwrap(bool claim) external;
}

//       ╟╗                                                                      ╔╬
//       ╞╬╬                                                                    ╬╠╬
//      ╔╣╬╬╬                                                                  ╠╠╠╠╦
//     ╬╬╬╬╬╩                                                                  ╘╠╠╠╠╬
//    ║╬╬╬╬╬                                                                    ╘╠╠╠╠╬
//    ╣╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬      ╒╬╬╬╬╬╬╬╜   ╠╠╬╬╬╬╬╬╬         ╠╬╬╬╬╬╬╬    ╬╬╬╬╬╬╬╬╠╠╠╠╠╠╠╠
//    ╙╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬╕    ╬╬╬╬╬╬╬╜   ╣╠╠╬╬╬╬╬╬╬╬        ╠╬╬╬╬╬╬╬   ╬╬╬╬╬╬╬╬╬╠╠╠╠╠╠╠╩
//     ╙╣╬╬╬╬╬╬╬╬╬╬╬╬╬╬╬  ╔╬╬╬╬╬╬╬    ╔╠╠╠╬╬╬╬╬╬╬╬        ╠╬╬╬╬╬╬╬ ╣╬╬╬╬╬╬╬╬╬╬╬╠╠╠╠╝╙
//               ╘╣╬╬╬╬╬╬╬╬╬╬╬╬╬╬    ╒╠╠╠╬╠╬╩╬╬╬╬╬╬       ╠╬╬╬╬╬╬╬╣╬╬╬╬╬╬╬╙
//                 ╣╬╬╬╬╬╬╬╬╬╬╠╣     ╣╬╠╠╠╬╩ ╚╬╬╬╬╬╬      ╠╬╬╬╬╬╬╬╬╬╬╬╬╬╬
//                  ╣╬╬╬╬╬╬╬╬╬╣     ╣╬╠╠╠╬╬   ╣╬╬╬╬╬╬     ╠╬╬╬╬╬╬╬╬╬╬╬╬╬╬
//                   ╟╬╬╬╬╬╬╬╩      ╬╬╠╠╠╠╬╬╬╬╬╬╬╬╬╬╬     ╠╬╬╬╬╬╬╬╠╬╬╬╬╬╬╬
//                    ╬╬╬╬╬╬╬     ╒╬╬╠╠╬╠╠╬╬╬╬╬╬╬╬╬╬╬╬    ╠╬╬╬╬╬╬╬ ╣╬╬╬╬╬╬╬
//                    ╬╬╬╬╬╬╬     ╬╬╬╠╠╠╠╝╝╝╝╝╝╝╠╬╬╬╬╬╬   ╠╬╬╬╬╬╬╬  ╚╬╬╬╬╬╬╬╬
//                    ╬╬╬╬╬╬╬    ╣╬╬╬╬╠╠╩       ╘╬╬╬╬╬╬╬  ╠╬╬╬╬╬╬╬   ╙╬╬╬╬╬╬╬╬
//

// SPDX-License-Identifier: MIT
pragma solidity 0.8.13;

struct Query {
    address adapter;
    address tokenIn;
    address tokenOut;
    uint256 amountOut;
}

struct Offer {
    bytes amounts;
    bytes adapters;
    bytes path;
    uint256 gasEstimate;
}

struct FormattedOffer {
    uint256[] amounts;
    address[] adapters;
    address[] path;
    uint256 gasEstimate;
}

struct Trade {
    uint256 amountIn;
    uint256 amountOut;
    address[] path;
    address[] adapters;
}

interface IYakRouter {
    event UpdatedTrustedTokens(address[] _newTrustedTokens);
    event UpdatedAdapters(address[] _newAdapters);
    event UpdatedMinFee(uint256 _oldMinFee, uint256 _newMinFee);
    event UpdatedFeeClaimer(address _oldFeeClaimer, address _newFeeClaimer);
    event YakSwap(address indexed _tokenIn, address indexed _tokenOut, uint256 _amountIn, uint256 _amountOut);

    // admin
    function setTrustedTokens(address[] memory _trustedTokens) external;
    function setAdapters(address[] memory _adapters) external;
    function setFeeClaimer(address _claimer) external;
    function setMinFee(uint256 _fee) external;

    // misc
    function trustedTokensCount() external view returns (uint256);
    function adaptersCount() external view returns (uint256);

    // query

    function queryAdapter(uint256 _amountIn, address _tokenIn, address _tokenOut, uint8 _index)
        external
        returns (uint256);

    function queryNoSplit(uint256 _amountIn, address _tokenIn, address _tokenOut, uint8[] calldata _options)
        external
        view
        returns (Query memory);

    function queryNoSplit(uint256 _amountIn, address _tokenIn, address _tokenOut)
        external
        view
        returns (Query memory);

    function findBestPathWithGas(
        uint256 _amountIn,
        address _tokenIn,
        address _tokenOut,
        uint256 _maxSteps,
        uint256 _gasPrice
    ) external view returns (FormattedOffer memory);

    function findBestPath(uint256 _amountIn, address _tokenIn, address _tokenOut, uint256 _maxSteps)
        external
        view
        returns (FormattedOffer memory);

    // swap

    function swapNoSplit(Trade calldata _trade, address _to, uint256 _fee) external;

    function swapNoSplitFromAVAX(Trade calldata _trade, address _to, uint256 _fee) external payable;

    function swapNoSplitToAVAX(Trade calldata _trade, address _to, uint256 _fee) external;

    function swapNoSplitWithPermit(
        Trade calldata _trade,
        address _to,
        uint256 _fee,
        uint256 _deadline,
        uint8 _v,
        bytes32 _r,
        bytes32 _s
    ) external;

    function swapNoSplitToAVAXWithPermit(
        Trade calldata _trade,
        address _to,
        uint256 _fee,
        uint256 _deadline,
        uint8 _v,
        bytes32 _r,
        bytes32 _s
    ) external;
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.13;

import "./Context.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
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() {
        address msgSender = _msgSender();
        _owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }

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

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

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

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

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

pragma solidity 0.8.13;

import "../interfaces/IERC20.sol";
import "./Address.sol";

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

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

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

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

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

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

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

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

// SPDX-License-Identifier: MIT
pragma solidity 0.8.13;

import "../../BaseStrategy.sol";
import "./interfaces/IPoolDepositor.sol";
import "./interfaces/IWombexRewardPool.sol";
import "./interfaces/IWombatAsset.sol";
import "./interfaces/IWombatPool.sol";
import "./interfaces/IBooster.sol";
import "./interfaces/ITokenMinter.sol";

contract WombexStrategy is BaseStrategy {
    using SafeERC20 for IERC20;

    address private constant WOM = 0x7B5EB3940021Ec0e8e463D5dBB4B7B09a89DDF96;
    address private constant WMX = 0x5190F06EaceFA2C552dc6BD5e763b81C73293293;

    struct WombexStrategySettings {
        address poolDepositor;
        address rewardPool;
    }

    IPoolDepositor public immutable poolDepositor;
    IWombexRewardPool public immutable rewardPool;
    IWombatAsset public immutable wombatAsset;
    IWombatPool public immutable wombatPool;
    IBooster public immutable booster;
    uint256 public immutable pid;

    constructor(
        WombexStrategySettings memory _wombexStrategySettings,
        BaseStrategySettings memory baseStrategySettings,
        StrategySettings memory _strategySettings
    ) BaseStrategy(baseStrategySettings, _strategySettings) {
        poolDepositor = IPoolDepositor(_wombexStrategySettings.poolDepositor);
        rewardPool = IWombexRewardPool(_wombexStrategySettings.rewardPool);
        wombatAsset = IWombatAsset(rewardPool.asset());
        wombatPool = IWombatPool(wombatAsset.pool());
        booster = IBooster(poolDepositor.booster());
        pid = poolDepositor.lpTokenToPid(rewardPool.asset());
    }

    function _depositToStakingContract(uint256 _amount, uint256) internal override {
        depositToken.approve(address(poolDepositor), _amount);
        poolDepositor.deposit(address(wombatAsset), _amount, 0, true);
    }

    function _withdrawFromStakingContract(uint256 _amount) internal override returns (uint256 _withdrawAmount) {
        uint256 lpBalance = rewardPool.balanceOf(address(this));
        uint256 liquidity = (_amount * lpBalance) / totalDeposits();
        liquidity = liquidity > lpBalance ? lpBalance : liquidity;
        rewardPool.withdrawAndUnwrap(liquidity, false);
        (uint256 expectedAmount,) = wombatPool.quotePotentialWithdraw(address(depositToken), liquidity);
        IERC20(address(wombatAsset)).approve(address(wombatPool), liquidity);
        _withdrawAmount =
            wombatPool.withdraw(address(depositToken), liquidity, expectedAmount, address(this), type(uint256).max);
    }

    function _emergencyWithdraw() internal override {
        depositToken.approve(address(poolDepositor), 0);
        rewardPool.withdrawAllAndUnwrap(false);
        uint256 assetBalance = IERC20(address(wombatAsset)).balanceOf(address(this));
        IERC20(address(wombatAsset)).approve(address(wombatPool), assetBalance);
        wombatPool.withdraw(address(depositToken), assetBalance, 0, address(this), type(uint256).max);
    }

    function _pendingRewards() internal view override returns (Reward[] memory) {
        (address[] memory tokens, uint256[] memory amounts) = rewardPool.claimableRewards(address(this));
        Reward[] memory pendingRewards = new Reward[](tokens.length + 1);
        uint256 womAmount;
        for (uint256 i = 0; i < tokens.length; i++) {
            pendingRewards[i] = Reward({reward: tokens[i], amount: amounts[i]});
            if (tokens[i] == WOM) {
                womAmount = amounts[i];
            }
        }
        if (womAmount > 0) {
            uint256 poolMintRatio = booster.customMintRatio(pid);
            if (poolMintRatio == 0) {
                poolMintRatio = booster.mintRatio();
            }
            if (poolMintRatio > 0) {
                uint256 wmxAmount = (womAmount * poolMintRatio) / BIPS_DIVISOR;
                address reservoirMinter = booster.reservoirMinter();
                ITokenMinter tokenMinter =
                    reservoirMinter == address(0) ? ITokenMinter(booster.cvx()) : ITokenMinter(reservoirMinter);
                pendingRewards[tokens.length] = Reward({reward: WMX, amount: tokenMinter.getFactAmounMint(wmxAmount)});
            }
        }
        return pendingRewards;
    }

    function _getRewards() internal override {
        rewardPool.getReward();
    }

    function totalDeposits() public view override returns (uint256) {
        uint256 liquidity = rewardPool.balanceOf(address(this));
        uint256 deposits = (wombatAsset.liability() * liquidity) / wombatAsset.totalSupply();
        return fromWad(deposits, depositToken.decimals());
    }

    function fromWad(uint256 x, uint8 d) internal pure returns (uint256) {
        if (d < 18) {
            return (x / (10 ** (18 - d)));
        } else if (d > 18) {
            return x * 10 ** (d - 18);
        }
        return x;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.13;

import "./interfaces/IERC20.sol";

abstract contract YakERC20 {
    string public name = "Yield Yak";
    string public symbol = "YRT";
    uint8 public constant decimals = 18;
    uint256 public totalSupply;

    mapping(address => mapping(address => uint256)) internal allowances;
    mapping(address => uint256) internal balances;

    /// @dev keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)")
    bytes32 public constant DOMAIN_TYPEHASH = 0x8b73c3c69bb8fe3d512ecc4cf759cc79239f7b179b0ffacaa9a75d522b39400f;

    /// @dev keccak256("1");
    bytes32 public constant VERSION_HASH = 0xc89efdaa54c0f20c7adf612882df0950f5a951637e0307cdcb4c672f298b8bc6;

    /// @dev keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
    bytes32 public constant PERMIT_TYPEHASH = 0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9;

    mapping(address => uint256) public nonces;

    event Transfer(address indexed from, address indexed to, uint256 value);
    event Approval(address indexed owner, address indexed spender, uint256 value);

    constructor() {}

    /**
     * @notice Get the number of tokens `spender` is approved to spend on behalf of `account`
     * @param account The address of the account holding the funds
     * @param spender The address of the account spending the funds
     * @return The number of tokens approved
     */
    function allowance(address account, address spender) external view returns (uint256) {
        return allowances[account][spender];
    }

    /**
     * @notice Approve `spender` to transfer up to `amount` from `src`
     * @dev This will overwrite the approval amount for `spender`
     * and is subject to issues noted [here](https://eips.ethereum.org/EIPS/eip-20#approve)
     * It is recommended to use increaseAllowance and decreaseAllowance instead
     * @param spender The address of the account which may transfer tokens
     * @param amount The number of tokens that are approved (2^256-1 means infinite)
     * @return Whether or not the approval succeeded
     */
    function approve(address spender, uint256 amount) external returns (bool) {
        _approve(msg.sender, spender, amount);
        return true;
    }

    /**
     * @notice Get the number of tokens held by the `account`
     * @param account The address of the account to get the balance of
     * @return The number of tokens held
     */
    function balanceOf(address account) external view returns (uint256) {
        return balances[account];
    }

    /**
     * @notice Transfer `amount` tokens from `msg.sender` to `dst`
     * @param dst The address of the destination account
     * @param amount The number of tokens to transfer
     * @return Whether or not the transfer succeeded
     */
    function transfer(address dst, uint256 amount) external returns (bool) {
        _transferTokens(msg.sender, dst, amount);
        return true;
    }

    /**
     * @notice Transfer `amount` tokens from `src` to `dst`
     * @param src The address of the source account
     * @param dst The address of the destination account
     * @param amount The number of tokens to transfer
     * @return Whether or not the transfer succeeded
     */
    function transferFrom(
        address src,
        address dst,
        uint256 amount
    ) external returns (bool) {
        address spender = msg.sender;
        uint256 spenderAllowance = allowances[src][spender];

        if (spender != src && spenderAllowance != type(uint256).max) {
            uint256 newAllowance = spenderAllowance - amount;
            allowances[src][spender] = newAllowance;

            emit Approval(src, spender, newAllowance);
        }

        _transferTokens(src, dst, amount);
        return true;
    }

    /**
     * @notice Approval implementation
     * @param owner The address of the account which owns tokens
     * @param spender The address of the account which may transfer tokens
     * @param amount The number of tokens that are approved (2^256-1 means infinite)
     */
    function _approve(
        address owner,
        address spender,
        uint256 amount
    ) internal {
        require(owner != address(0), "_approve::owner zero address");
        require(spender != address(0), "_approve::spender zero address");
        allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

    /**
     * @notice Transfer implementation
     * @param from The address of the account which owns tokens
     * @param to The address of the account which is receiving tokens
     * @param value The number of tokens that are being transferred
     */
    function _transferTokens(
        address from,
        address to,
        uint256 value
    ) internal {
        require(to != address(0), "_transferTokens: cannot transfer to the zero address");

        balances[from] = balances[from] - value;
        balances[to] = balances[to] + value;
        emit Transfer(from, to, value);
    }

    function _mint(address to, uint256 value) internal {
        require(value > 0, "_mint::zero shares");
        totalSupply = totalSupply + value;
        balances[to] = balances[to] + value;
        emit Transfer(address(0), to, value);
    }

    function _burn(address from, uint256 value) internal {
        balances[from] = balances[from] - value;
        totalSupply = totalSupply - value;
        emit Transfer(from, address(0), value);
    }

    /**
     * @notice Triggers an approval from owner to spender
     * @param owner The address to approve from
     * @param spender The address to be approved
     * @param value The number of tokens that are approved (2^256-1 means infinite)
     * @param deadline The time at which to expire the signature
     * @param v The recovery byte of the signature
     * @param r Half of the ECDSA signature pair
     * @param s Half of the ECDSA signature pair
     */
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external {
        require(deadline >= block.timestamp, "permit::expired");

        bytes32 encodeData = keccak256(abi.encode(PERMIT_TYPEHASH, owner, spender, value, nonces[owner]++, deadline));
        _validateSignedData(owner, encodeData, v, r, s);

        _approve(owner, spender, value);
    }

    /**
     * @notice Recovers address from signed data and validates the signature
     * @param signer Address that signed the data
     * @param encodeData Data signed by the address
     * @param v The recovery byte of the signature
     * @param r Half of the ECDSA signature pair
     * @param s Half of the ECDSA signature pair
     */
    function _validateSignedData(
        address signer,
        bytes32 encodeData,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal view {
        bytes32 digest = keccak256(abi.encodePacked("\x19\x01", getDomainSeparator(), encodeData));
        address recoveredAddress = ecrecover(digest, v, r, s);
        // Explicitly disallow authorizations for address(0) as ecrecover returns address(0) on malformed messages
        require(recoveredAddress != address(0) && recoveredAddress == signer, "Arch::validateSig: invalid signature");
    }

    /**
     * @notice EIP-712 Domain separator
     * @return Separator
     */
    function getDomainSeparator() public view returns (bytes32) {
        return
            keccak256(abi.encode(DOMAIN_TYPEHASH, keccak256(bytes(name)), VERSION_HASH, _getChainId(), address(this)));
    }

    /**
     * @notice Current id of the chain where this contract is deployed
     * @return Chain id
     */
    function _getChainId() internal view returns (uint256) {
        uint256 chainId;
        assembly {
            chainId := chainid()
        }
        return chainId;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.13;

import "./YakERC20.sol";
import "./lib/Ownable.sol";
import "./lib/SafeERC20.sol";
import "./interfaces/IERC20.sol";

/**
 * @notice YakStrategy should be inherited by new strategies
 */
abstract contract YakStrategyV3 is YakERC20, Ownable {
    using SafeERC20 for IERC20;

    struct StrategySettings {
        string name;
        address owner;
        address dev;
        address feeCollector;
        address depositToken;
        address rewardToken;
        uint256 minTokensToReinvest;
        uint256 devFeeBips;
        uint256 reinvestRewardBips;
    }

    IERC20 public immutable depositToken;
    IERC20 public immutable rewardToken;

    address public devAddr;
    address public feeCollector;

    uint256 public MIN_TOKENS_TO_REINVEST;
    bool public DEPOSITS_ENABLED;

    uint256 public REINVEST_REWARD_BIPS;
    uint256 public DEV_FEE_BIPS;

    uint256 internal constant BIPS_DIVISOR = 10000;

    event Deposit(address indexed account, uint256 amount);
    event Withdraw(address indexed account, uint256 amount);
    event Reinvest(uint256 newTotalDeposits, uint256 newTotalSupply);
    event Recovered(address token, uint256 amount);
    event UpdateDevFee(uint256 oldValue, uint256 newValue);
    event UpdateReinvestReward(uint256 oldValue, uint256 newValue);
    event UpdateMinTokensToReinvest(uint256 oldValue, uint256 newValue);
    event UpdateMaxTokensToDepositWithoutReinvest(uint256 oldValue, uint256 newValue);
    event UpdateDevAddr(address oldValue, address newValue);
    event UpdateFeeCollector(address oldValue, address newValue);
    event DepositsEnabled(bool newValue);

    /**
     * @notice Throws if called by smart contract
     */
    modifier onlyEOA() {
        require(tx.origin == msg.sender, "YakStrategy::onlyEOA");
        _;
    }

    /**
     * @notice Only called by dev
     */
    modifier onlyDev() {
        require(msg.sender == devAddr, "YakStrategy::onlyDev");
        _;
    }

    constructor(StrategySettings memory _strategySettings) {
        name = _strategySettings.name;
        depositToken = IERC20(_strategySettings.depositToken);
        rewardToken = IERC20(_strategySettings.rewardToken);

        devAddr = msg.sender;
        updateMinTokensToReinvest(_strategySettings.minTokensToReinvest);
        updateDevFee(_strategySettings.devFeeBips);
        updateReinvestReward(_strategySettings.reinvestRewardBips);
        updateFeeCollector(_strategySettings.feeCollector);
        updateDevAddr(_strategySettings.dev);

        enableDeposits();
        transferOwnership(_strategySettings.owner);
    }

    /**
     * @notice Deposit and deploy deposits tokens to the strategy
     * @dev Must mint receipt tokens to `msg.sender`
     * @param amount deposit tokens
     */
    function deposit(uint256 amount) external virtual;

    /**
     * @notice Deposit using Permit
     * @dev Should revert for tokens without Permit
     * @param amount Amount of tokens to deposit
     * @param deadline The time at which to expire the signature
     * @param v The recovery byte of the signature
     * @param r Half of the ECDSA signature pair
     * @param s Half of the ECDSA signature pair
     */
    function depositWithPermit(uint256 amount, uint256 deadline, uint8 v, bytes32 r, bytes32 s) external virtual;

    /**
     * @notice Deposit on behalf of another account
     * @dev Must mint receipt tokens to `account`
     * @param account address to receive receipt tokens
     * @param amount deposit tokens
     */
    function depositFor(address account, uint256 amount) external virtual;

    /**
     * @notice Redeem receipt tokens for deposit tokens
     * @param amount receipt tokens
     */
    function withdraw(uint256 amount) external virtual;

    /**
     * @notice Reinvest reward tokens into deposit tokens
     */
    function reinvest() external virtual;

    /**
     * @notice Estimate reinvest reward
     * @return reward tokens
     */
    function estimateReinvestReward() external view returns (uint256) {
        uint256 unclaimedRewards = checkReward();
        if (unclaimedRewards >= MIN_TOKENS_TO_REINVEST) {
            return (unclaimedRewards * REINVEST_REWARD_BIPS) / BIPS_DIVISOR;
        }
        return 0;
    }

    /**
     * @notice Reward tokens available to strategy, including balance
     * @return reward tokens
     */
    function checkReward() public view virtual returns (uint256);

    /**
     * @notice Rescue all available deployed deposit tokens back to Strategy
     * @param minReturnAmountAccepted min deposit tokens to receive
     */
    function rescueDeployedFunds(uint256 minReturnAmountAccepted) external virtual;

    /**
     * @notice This function returns a snapshot of last available quotes
     * @return total deposits available on the contract
     */
    function totalDeposits() public view virtual returns (uint256);

    /**
     * @notice Calculate receipt tokens for a given amount of deposit tokens
     * @dev If contract is empty, use 1:1 ratio
     * @dev Could return zero shares for very low amounts of deposit tokens
     * @param amount deposit tokens
     * @return receipt tokens
     */
    function getSharesForDepositTokens(uint256 amount) public view returns (uint256) {
        uint256 tDeposits = totalDeposits();
        uint256 tSupply = totalSupply;
        if (tSupply == 0 || tDeposits == 0) {
            return amount;
        }
        return (amount * tSupply) / tDeposits;
    }

    /**
     * @notice Calculate deposit tokens for a given amount of receipt tokens
     * @param amount receipt tokens
     * @return deposit tokens
     */
    function getDepositTokensForShares(uint256 amount) public view returns (uint256) {
        uint256 tDeposits = totalDeposits();
        uint256 tSupply = totalSupply;
        if (tSupply == 0 || tDeposits == 0) {
            return 0;
        }
        return (amount * tDeposits) / tSupply;
    }

    // Dev protected

    /**
     * @notice Revoke token allowance
     * @param token address
     * @param spender address
     */
    function revokeAllowance(address token, address spender) external onlyDev {
        require(IERC20(token).approve(spender, 0));
    }

    /**
     * @notice Disable deposits
     */
    function disableDeposits() public onlyDev {
        require(DEPOSITS_ENABLED);
        DEPOSITS_ENABLED = false;
        emit DepositsEnabled(false);
    }

    /**
     * @notice Update reinvest min threshold
     * @param newValue threshold
     */
    function updateMinTokensToReinvest(uint256 newValue) public onlyDev {
        emit UpdateMinTokensToReinvest(MIN_TOKENS_TO_REINVEST, newValue);
        MIN_TOKENS_TO_REINVEST = newValue;
    }

    /**
     * @notice Update developer fee
     * @param newValue fee in BIPS
     */
    function updateDevFee(uint256 newValue) public onlyDev {
        require(newValue + REINVEST_REWARD_BIPS <= BIPS_DIVISOR);
        emit UpdateDevFee(DEV_FEE_BIPS, newValue);
        DEV_FEE_BIPS = newValue;
    }

    /**
     * @notice Update reinvest reward
     * @param newValue fee in BIPS
     */
    function updateReinvestReward(uint256 newValue) public onlyDev {
        require(newValue + DEV_FEE_BIPS <= BIPS_DIVISOR);
        emit UpdateReinvestReward(REINVEST_REWARD_BIPS, newValue);
        REINVEST_REWARD_BIPS = newValue;
    }

    // Owner protected

    /**
     * @notice Enable deposits
     */
    function enableDeposits() public onlyOwner {
        require(!DEPOSITS_ENABLED);
        DEPOSITS_ENABLED = true;
        emit DepositsEnabled(true);
    }

    /**
     * @notice Update devAddr
     * @param newValue address
     */
    function updateDevAddr(address newValue) public onlyOwner {
        emit UpdateDevAddr(devAddr, newValue);
        devAddr = newValue;
    }

    /**
     * @notice Update feeCollector
     * @param newValue address
     */
    function updateFeeCollector(address newValue) public onlyOwner {
        emit UpdateFeeCollector(feeCollector, newValue);
        feeCollector = newValue;
    }

    /**
     * @notice Recover ERC20 from contract
     * @param tokenAddress token address
     * @param tokenAmount amount to recover
     */
    function recoverERC20(address tokenAddress, uint256 tokenAmount) external onlyOwner {
        require(tokenAmount > 0);
        IERC20(tokenAddress).safeTransfer(msg.sender, tokenAmount);
        emit Recovered(tokenAddress, tokenAmount);
    }

    /**
     * @notice Recover GAS from contract
     * @param amount amount
     */
    function recoverGas(uint256 amount) external onlyOwner {
        require(amount > 0);
        payable(msg.sender).transfer(amount);
        emit Recovered(address(0), amount);
    }
}

{
  "compilationTarget": {
    "contracts/strategies/arbitrum/wombex/WombexStrategy.sol": "WombexStrategy"
  },
  "evmVersion": "london",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs",
    "useLiteralContent": true
  },
  "optimizer": {
    "enabled": true,
    "runs": 999
  },
  "remappings": []
}