BrikedStrategy.sol

// NOTE: This is a copy paste, for maintaineable code check: https://github.com/GalloDaSballo/bvecvx-cvx-curve/releases/tag/briked.0

// SPDX-License-Identifier: MIT

pragma solidity 0.6.12;
pragma experimental ABIEncoderV2;



// Part: AddressUpgradeable

/**
 * @dev Collection of functions related to the address type
 */
library AddressUpgradeable {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies in extcodesize, which returns 0 for contracts in
        // construction, since the code is only stored at the end of the
        // constructor execution.

        uint256 size;
        // solhint-disable-next-line no-inline-assembly
        assembly {
            size := extcodesize(account)
        }
        return size > 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"
        );

        // solhint-disable-next-line avoid-low-level-calls, avoid-call-value
        (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"
        );
        return _functionCallWithValue(target, data, value, errorMessage);
    }

    function _functionCallWithValue(
        address target,
        bytes memory data,
        uint256 weiValue,
        string memory errorMessage
    ) private returns (bytes memory) {
        require(isContract(target), "Address: call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) =
            target.call{value: weiValue}(data);
        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

                // solhint-disable-next-line no-inline-assembly
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

// Part: IController

interface IController {
    function withdraw(address, uint256) external;

    function strategies(address) external view returns (address);

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

    function earn(address, uint256) external;

    function want(address) external view returns (address);

    function rewards() external view returns (address);

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

// Part: IERC20Upgradeable

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20Upgradeable {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `recipient`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address recipient, uint256 amount)
        external
        returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender)
        external
        view
        returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `sender` to `recipient` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) external returns (bool);

    /**
     * @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
    );
}

// Part: IUniswapRouterV2

interface IUniswapRouterV2 {
    function factory() external view returns (address);

    function addLiquidity(
        address tokenA,
        address tokenB,
        uint256 amountADesired,
        uint256 amountBDesired,
        uint256 amountAMin,
        uint256 amountBMin,
        address to,
        uint256 deadline
    )
        external
        returns (
            uint256 amountA,
            uint256 amountB,
            uint256 liquidity
        );

    function addLiquidityETH(
        address token,
        uint256 amountTokenDesired,
        uint256 amountTokenMin,
        uint256 amountETHMin,
        address to,
        uint256 deadline
    )
        external
        payable
        returns (
            uint256 amountToken,
            uint256 amountETH,
            uint256 liquidity
        );

    function removeLiquidity(
        address tokenA,
        address tokenB,
        uint256 liquidity,
        uint256 amountAMin,
        uint256 amountBMin,
        address to,
        uint256 deadline
    ) external returns (uint256 amountA, uint256 amountB);

    function getAmountsOut(uint256 amountIn, address[] calldata path)
        external
        view
        returns (uint256[] memory amounts);

    function getAmountsIn(uint256 amountOut, address[] calldata path)
        external
        view
        returns (uint256[] memory amounts);

    function swapETHForExactTokens(
        uint256 amountOut,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external payable returns (uint256[] memory amounts);

    function swapExactETHForTokens(
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external payable returns (uint256[] memory amounts);

    function swapExactTokensForETH(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external returns (uint256[] memory amounts);

    function swapTokensForExactETH(
        uint256 amountOut,
        uint256 amountInMax,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external returns (uint256[] memory amounts);

    function swapExactTokensForTokens(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external returns (uint256[] memory amounts);

    function swapTokensForExactTokens(
        uint256 amountOut,
        uint256 amountInMax,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external returns (uint256[] memory amounts);
}

// Part: Initializable

/**
 * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
 * behind a proxy. Since a proxied contract can't have a constructor, it's common to move constructor logic to an
 * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
 * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
 *
 * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
 * possible by providing the encoded function call as the `_data` argument to {UpgradeableProxy-constructor}.
 *
 * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
 * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
 */
abstract contract Initializable {
    /**
     * @dev Indicates that the contract has been initialized.
     */
    bool private _initialized;

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

    /**
     * @dev Modifier to protect an initializer function from being invoked twice.
     */
    modifier initializer() {
        require(
            _initializing || _isConstructor() || !_initialized,
            "Initializable: contract is already initialized"
        );

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

        _;

        if (isTopLevelCall) {
            _initializing = false;
        }
    }

    /// @dev Returns true if and only if the function is running in the constructor
    function _isConstructor() private view returns (bool) {
        // extcodesize checks the size of the code stored in an address, and
        // address returns the current address. Since the code is still not
        // deployed when running a constructor, any checks on its code size will
        // yield zero, making it an effective way to detect if a contract is
        // under construction or not.
        address self = address(this);
        uint256 cs;
        // solhint-disable-next-line no-inline-assembly
        assembly {
            cs := extcodesize(self)
        }
        return cs == 0;
    }
}

// Part: MathUpgradeable

/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library MathUpgradeable {
    /**
     * @dev Returns the largest of two numbers.
     */
    function max(uint256 a, uint256 b) internal pure returns (uint256) {
        return a >= b ? a : b;
    }

    /**
     * @dev Returns the smallest of two numbers.
     */
    function min(uint256 a, uint256 b) internal pure returns (uint256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two numbers. The result is rounded towards
     * zero.
     */
    function average(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b) / 2 can overflow, so we distribute
        return (a / 2) + (b / 2) + (((a % 2) + (b % 2)) / 2);
    }
}

// Part: SafeMathUpgradeable

/**
 * @dev Wrappers over Solidity's arithmetic operations with added overflow
 * checks.
 *
 * Arithmetic operations in Solidity wrap on overflow. This can easily result
 * in bugs, because programmers usually assume that an overflow raises an
 * error, which is the standard behavior in high level programming languages.
 * `SafeMath` restores this intuition by reverting the transaction when an
 * operation overflows.
 *
 * Using this library instead of the unchecked operations eliminates an entire
 * class of bugs, so it's recommended to use it always.
 */
library SafeMathUpgradeable {
    /**
     * @dev Returns the addition of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     *
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");

        return c;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return sub(a, b, "SafeMath: subtraction overflow");
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        uint256 c = a - b;

        return c;
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     *
     * - Multiplication cannot overflow.
     */
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
        if (a == 0) {
            return 0;
        }

        uint256 c = a * b;
        require(c / a == b, "SafeMath: multiplication overflow");

        return c;
    }

    /**
     * @dev Returns the integer division of two unsigned integers. Reverts on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return div(a, b, "SafeMath: division by zero");
    }

    /**
     * @dev Returns the integer division of two unsigned integers. Reverts with custom message on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        uint256 c = a / b;
        // assert(a == b * c + a % b); // There is no case in which this doesn't hold

        return c;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return mod(a, b, "SafeMath: modulo by zero");
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts with custom message when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        require(b != 0, errorMessage);
        return a % b;
    }
}

// Part: ContextUpgradeable

/*
 * @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 ContextUpgradeable is Initializable {
    function __Context_init() internal initializer {
        __Context_init_unchained();
    }

    function __Context_init_unchained() internal initializer {}

    function _msgSender() internal view virtual returns (address payable) {
        return 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;
    }

    uint256[50] private __gap;
}

// Part: SafeERC20Upgradeable

/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20Upgradeable {
    using SafeMathUpgradeable for uint256;
    using AddressUpgradeable for address;

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

    function safeTransferFrom(
        IERC20Upgradeable token,
        address from,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(
            token,
            abi.encodeWithSelector(token.transferFrom.selector, from, to, value)
        );
    }

    /**
     * @dev Deprecated. This function has issues similar to the ones found in
     * {IERC20-approve}, and its usage is discouraged.
     *
     * Whenever possible, use {safeIncreaseAllowance} and
     * {safeDecreaseAllowance} instead.
     */
    function safeApprove(
        IERC20Upgradeable token,
        address spender,
        uint256 value
    ) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        // solhint-disable-next-line max-line-length
        require(
            (value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        _callOptionalReturn(
            token,
            abi.encodeWithSelector(token.approve.selector, spender, value)
        );
    }

    function safeIncreaseAllowance(
        IERC20Upgradeable token,
        address spender,
        uint256 value
    ) internal {
        uint256 newAllowance =
            token.allowance(address(this), spender).add(value);
        _callOptionalReturn(
            token,
            abi.encodeWithSelector(
                token.approve.selector,
                spender,
                newAllowance
            )
        );
    }

    function safeDecreaseAllowance(
        IERC20Upgradeable token,
        address spender,
        uint256 value
    ) internal {
        uint256 newAllowance =
            token.allowance(address(this), spender).sub(
                value,
                "SafeERC20: decreased allowance below zero"
            );
        _callOptionalReturn(
            token,
            abi.encodeWithSelector(
                token.approve.selector,
                spender,
                newAllowance
            )
        );
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function _callOptionalReturn(IERC20Upgradeable token, bytes memory data)
        private
    {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

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

// Part: BrikedSettAccessControl

/*
    Common base for permissioned roles throughout Sett ecosystem
*/
contract BrikedSettAccessControl is Initializable {
    address public governance;
    address public strategist;
    address public keeper;

    // ===== MODIFIERS =====
    function _onlyGovernance() internal view {
        require(msg.sender == governance, "onlyGovernance");
    }

    function _onlyGovernanceOrStrategist() internal view {
        require(
            msg.sender == strategist || msg.sender == governance,
            "onlyGovernanceOrStrategist"
        );
    }

    function _onlyAuthorizedActors() internal view {
        require(
            msg.sender == keeper || msg.sender == governance,
            "onlyAuthorizedActors"
        );
    }

    // ===== PERMISSIONED ACTIONS =====

    /// @notice Change strategist address
    /// @notice Can only be changed by governance itself
    function setStrategist(address _strategist) external {
        _onlyGovernance();
        strategist = _strategist;
    }

    /// @notice Change keeper address
    /// @notice Can only be changed by governance itself
    function setKeeper(address _keeper) external {
        _onlyGovernance();
        keeper = _keeper;
    }

    /// @notice Change governance address
    /// @notice Can only be changed by governance itself
    function setGovernance(address _governance) public {
        _onlyGovernance();
        governance = _governance;
    }

    uint256[50] private __gap;
}

// Part: PausableUpgradeable

/**
 * @dev Contract module which allows children to implement an emergency stop
 * mechanism that can be triggered by an authorized account.
 *
 * This module is used through inheritance. It will make available the
 * modifiers `whenNotPaused` and `whenPaused`, which can be applied to
 * the functions of your contract. Note that they will not be pausable by
 * simply including this module, only once the modifiers are put in place.
 */
contract PausableUpgradeable is Initializable, ContextUpgradeable {
    /**
     * @dev Emitted when the pause is triggered by `account`.
     */
    event Paused(address account);

    /**
     * @dev Emitted when the pause is lifted by `account`.
     */
    event Unpaused(address account);

    bool private _paused;

    /**
     * @dev Initializes the contract in unpaused state.
     */
    function __Pausable_init() internal initializer {
        __Context_init_unchained();
        __Pausable_init_unchained();
    }

    function __Pausable_init_unchained() internal initializer {
        _paused = false;
    }

    /**
     * @dev Returns true if the contract is paused, and false otherwise.
     */
    function paused() public view returns (bool) {
        return _paused;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is not paused.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    modifier whenNotPaused() {
        require(!_paused, "Pausable: paused");
        _;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is paused.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    modifier whenPaused() {
        require(_paused, "Pausable: not paused");
        _;
    }

    /**
     * @dev Triggers stopped state.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    function _pause() internal virtual whenNotPaused {
        _paused = true;
        emit Paused(_msgSender());
    }

    /**
     * @dev Returns to normal state.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    function _unpause() internal virtual whenPaused {
        _paused = false;
        emit Unpaused(_msgSender());
    }

    uint256[49] private __gap;
}

// Part: BaseStrategy

/*
    ===== Badger Base Strategy =====
    Common base class for all Sett strategies

    Changelog
    V1.1
    - Verify amount unrolled from strategy positions on withdraw() is within a threshold relative to the requested amount as a sanity check
    - Add version number which is displayed with baseStrategyVersion(). If a strategy does not implement this function, it can be assumed to be 1.0

    V1.2
    - Remove idle want handling from base withdraw() function. This should be handled as the strategy sees fit in _withdrawSome()
*/
abstract contract BaseStrategy is PausableUpgradeable, BrikedSettAccessControl {
    using SafeERC20Upgradeable for IERC20Upgradeable;
    using AddressUpgradeable for address;
    using SafeMathUpgradeable for uint256;

    // Standardized harvest event for UI
    event Harvest(uint256 harvested, uint256 indexed blockNumber);

    address public want; // Want: Curve.fi renBTC/wBTC (crvRenWBTC) LP token

    uint256 public performanceFeeGovernance;
    uint256 public performanceFeeStrategist;
    uint256 public withdrawalFee;

    uint256 public constant MAX_FEE = 10000;
    address public constant uniswap =
        0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D; // Uniswap Dex

    address public controller;
    address public guardian;

    uint256 public withdrawalMaxDeviationThreshold;

    function __BaseStrategy_init(
        address _governance,
        address _strategist,
        address _controller,
        address _keeper,
        address _guardian
    ) public initializer whenNotPaused {
        __Pausable_init();
        governance = _governance;
        strategist = _strategist;
        keeper = _keeper;
        controller = _controller;
        guardian = _guardian;
        withdrawalMaxDeviationThreshold = 50;
    }

    // ===== Modifiers =====

    function _onlyController() internal view {
        require(msg.sender == controller, "onlyController");
    }

    function _onlyAuthorizedActorsOrController() internal view {
        require(
            msg.sender == keeper ||
                msg.sender == governance ||
                msg.sender == controller,
            "onlyAuthorizedActorsOrController"
        );
    }

    function _onlyAuthorizedPausers() internal view {
        require(
            msg.sender == guardian || msg.sender == governance,
            "onlyPausers"
        );
    }

    /// ===== View Functions =====
    function baseStrategyVersion() public view returns (string memory) {
        return "1.2";
    }

    /// @notice Get the balance of want held idle in the Strategy
    function balanceOfWant() public view returns (uint256) {
        return IERC20Upgradeable(want).balanceOf(address(this));
    }

    /// @notice Get the total balance of want realized in the strategy, whether idle or active in Strategy positions.
    function balanceOf() public view virtual returns (uint256) {
        return balanceOfWant().add(balanceOfPool());
    }

    function isTendable() public view virtual returns (bool) {
        return false;
    }

    /// ===== Permissioned Actions: Governance =====

    function setGuardian(address _guardian) external {
        _onlyGovernance();
        guardian = _guardian;
    }

    function setWithdrawalFee(uint256 _withdrawalFee) external {
        _onlyGovernance();
        require(
            _withdrawalFee <= MAX_FEE,
            "base-strategy/excessive-withdrawal-fee"
        );
        withdrawalFee = _withdrawalFee;
    }

    function setPerformanceFeeStrategist(uint256 _performanceFeeStrategist)
        external
    {
        _onlyGovernance();
        require(
            _performanceFeeStrategist <= MAX_FEE,
            "base-strategy/excessive-strategist-performance-fee"
        );
        performanceFeeStrategist = _performanceFeeStrategist;
    }

    function setPerformanceFeeGovernance(uint256 _performanceFeeGovernance)
        external
    {
        _onlyGovernance();
        require(
            _performanceFeeGovernance <= MAX_FEE,
            "base-strategy/excessive-governance-performance-fee"
        );
        performanceFeeGovernance = _performanceFeeGovernance;
    }

    function setController(address _controller) external {
        _onlyGovernance();
        controller = _controller;
    }

    function setWithdrawalMaxDeviationThreshold(uint256 _threshold) external {
        _onlyGovernance();
        require(
            _threshold <= MAX_FEE,
            "base-strategy/excessive-max-deviation-threshold"
        );
        withdrawalMaxDeviationThreshold = _threshold;
    }

    function deposit() public virtual whenNotPaused {
        _onlyAuthorizedActorsOrController();
        uint256 _want = IERC20Upgradeable(want).balanceOf(address(this));
        if (_want > 0) {
            _deposit(_want);
        }
        _postDeposit();
    }

    // ===== Permissioned Actions: Controller =====

    /// @notice Controller-only function to Withdraw partial funds, normally used with a vault withdrawal
    function withdrawAll()
        external
        virtual
        whenNotPaused
        returns (uint256 balance)
    {
        _onlyController();

        _withdrawAll();

        _transferToVault(IERC20Upgradeable(want).balanceOf(address(this)));
    }

    /// @notice Withdraw partial funds from the strategy, unrolling from strategy positions as necessary
    /// @notice Processes withdrawal fee if present
    /// @dev If it fails to recover sufficient funds (defined by withdrawalMaxDeviationThreshold), the withdrawal should fail so that this unexpected behavior can be investigated
    function withdraw(uint256 _amount) external virtual whenNotPaused {
        _onlyController();

        // Withdraw from strategy positions, typically taking from any idle want first.
        _withdrawSome(_amount);
        uint256 _postWithdraw =
            IERC20Upgradeable(want).balanceOf(address(this));

        // Sanity check: Ensure we were able to retrieve sufficent want from strategy positions
        // If we end up with less than the amount requested, make sure it does not deviate beyond a maximum threshold
        if (_postWithdraw < _amount) {
            uint256 diff = _diff(_amount, _postWithdraw);

            // Require that difference between expected and actual values is less than the deviation threshold percentage
            require(
                diff <=
                    _amount.mul(withdrawalMaxDeviationThreshold).div(MAX_FEE),
                "base-strategy/withdraw-exceed-max-deviation-threshold"
            );
        }

        // Return the amount actually withdrawn if less than amount requested
        uint256 _toWithdraw = MathUpgradeable.min(_postWithdraw, _amount);

        // Process withdrawal fee
        uint256 _fee = _processWithdrawalFee(_toWithdraw);

        // Transfer remaining to Vault to handle withdrawal
        _transferToVault(_toWithdraw.sub(_fee));
    }

    // NOTE: must exclude any tokens used in the yield
    // Controller role - withdraw should return to Controller
    function withdrawOther(address _asset)
        external
        virtual
        whenNotPaused
        returns (uint256 balance)
    {
        _onlyController();
        _onlyNotProtectedTokens(_asset);

        balance = IERC20Upgradeable(_asset).balanceOf(address(this));
        IERC20Upgradeable(_asset).safeTransfer(controller, balance);
    }

    /// ===== Permissioned Actions: Authoized Contract Pausers =====

    function pause() external {
        _onlyAuthorizedPausers();
        _pause();
    }

    function unpause() external {
        _onlyGovernance();
        _unpause();
    }

    /// ===== Internal Helper Functions =====

    /// @notice If withdrawal fee is active, take the appropriate amount from the given value and transfer to rewards recipient
    /// @return The withdrawal fee that was taken
    function _processWithdrawalFee(uint256 _amount) internal returns (uint256) {
        if (withdrawalFee == 0) {
            return 0;
        }

        uint256 fee = _amount.mul(withdrawalFee).div(MAX_FEE);
        IERC20Upgradeable(want).safeTransfer(
            IController(controller).rewards(),
            fee
        );
        return fee;
    }

    /// @dev Helper function to process an arbitrary fee
    /// @dev If the fee is active, transfers a given portion in basis points of the specified value to the recipient
    /// @return The fee that was taken
    function _processFee(
        address token,
        uint256 amount,
        uint256 feeBps,
        address recipient
    ) internal returns (uint256) {
        if (feeBps == 0) {
            return 0;
        }
        uint256 fee = amount.mul(feeBps).div(MAX_FEE);
        IERC20Upgradeable(token).safeTransfer(recipient, fee);
        return fee;
    }

    /// @dev Reset approval and approve exact amount
    function _safeApproveHelper(
        address token,
        address recipient,
        uint256 amount
    ) internal {
        IERC20Upgradeable(token).safeApprove(recipient, 0);
        IERC20Upgradeable(token).safeApprove(recipient, amount);
    }

    function _transferToVault(uint256 _amount) internal {
        address _vault = IController(controller).vaults(address(want));
        require(_vault != address(0), "!vault"); // additional protection so we don't burn the funds
        IERC20Upgradeable(want).safeTransfer(_vault, _amount);
    }

    /// @notice Swap specified balance of given token on Uniswap with given path
    function _swap(
        address startToken,
        uint256 balance,
        address[] memory path
    ) internal {
        _safeApproveHelper(startToken, uniswap, balance);
        IUniswapRouterV2(uniswap).swapExactTokensForTokens(
            balance,
            0,
            path,
            address(this),
            now
        );
    }

    function _swapEthIn(uint256 balance, address[] memory path) internal {
        IUniswapRouterV2(uniswap).swapExactETHForTokens{value: balance}(
            0,
            path,
            address(this),
            now
        );
    }

    function _swapEthOut(
        address startToken,
        uint256 balance,
        address[] memory path
    ) internal {
        _safeApproveHelper(startToken, uniswap, balance);
        IUniswapRouterV2(uniswap).swapExactTokensForETH(
            balance,
            0,
            path,
            address(this),
            now
        );
    }

    /// @notice Add liquidity to uniswap for specified token pair, utilizing the maximum balance possible
    function _add_max_liquidity_uniswap(address token0, address token1)
        internal
        virtual
    {
        uint256 _token0Balance =
            IERC20Upgradeable(token0).balanceOf(address(this));
        uint256 _token1Balance =
            IERC20Upgradeable(token1).balanceOf(address(this));

        _safeApproveHelper(token0, uniswap, _token0Balance);
        _safeApproveHelper(token1, uniswap, _token1Balance);

        IUniswapRouterV2(uniswap).addLiquidity(
            token0,
            token1,
            _token0Balance,
            _token1Balance,
            0,
            0,
            address(this),
            block.timestamp
        );
    }

    /// @notice Utility function to diff two numbers, expects higher value in first position
    function _diff(uint256 a, uint256 b) internal pure returns (uint256) {
        require(a >= b, "diff/expected-higher-number-in-first-position");
        return a.sub(b);
    }

    // ===== Abstract Functions: To be implemented by specific Strategies =====

    /// @dev Internal deposit logic to be implemented by Stratgies
    function _deposit(uint256 _amount) internal virtual;

    function _postDeposit() internal virtual {
        //no-op by default
    }

    /// @notice Specify tokens used in yield process, should not be available to withdraw via withdrawOther()
    function _onlyNotProtectedTokens(address _asset) internal virtual;

    function getProtectedTokens()
        external
        view
        virtual
        returns (address[] memory);

    /// @dev Internal logic for strategy migration. Should exit positions as efficiently as possible
    function _withdrawAll() internal virtual;

    /// @dev Internal logic for partial withdrawals. Should exit positions as efficiently as possible.
    /// @dev The withdraw() function shell automatically uses idle want in the strategy before attempting to withdraw more using this
    function _withdrawSome(uint256 _amount) internal virtual returns (uint256);

    /// @dev Realize returns from positions
    /// @dev Returns can be reinvested into positions, or distributed in another fashion
    /// @dev Performance fees should also be implemented in this function
    /// @dev Override function stub is removed as each strategy can have it's own return signature for STATICCALL
    // function harvest() external virtual;

    /// @dev User-friendly name for this strategy for purposes of convenient reading
    function getName() external pure virtual returns (string memory);

    /// @dev Balance of want currently held in strategy positions
    function balanceOfPool() public view virtual returns (uint256);

    uint256[49] private __gap;
}

// File: BrikedStrategy.sol

/// @title BrikedStrategy
/// @dev A strategy that does nothing
/// @author Badger DAO
contract BrikedStrategy is BaseStrategy {
    using SafeERC20Upgradeable for IERC20Upgradeable;
    using AddressUpgradeable for address;
    using SafeMathUpgradeable for uint256;

    event TreeDistribution(
        address indexed token,
        uint256 amount,
        uint256 indexed blockNumber,
        uint256 timestamp
    );

    // address public want // Inherited from BaseStrategy, the token the strategy wants, swaps into and tries to grow
    address public lpComponent; // Token we provide liquidity with
    address public reward; // it's CRV

    function initialize(
        address _governance,
        address _strategist,
        address _controller,
        address _keeper,
        address _guardian,
        address[3] memory _wantConfig,
        uint256[3] memory _feeConfig
    ) public initializer {
        __BaseStrategy_init(
            _governance,
            _strategist,
            _controller,
            _keeper,
            _guardian
        );

        /// @dev Add config here
        want = _wantConfig[0];
        lpComponent = _wantConfig[1];
        reward = _wantConfig[2];

        performanceFeeGovernance = _feeConfig[0];
        performanceFeeStrategist = _feeConfig[1];
        withdrawalFee = _feeConfig[2];
    }

    /// ===== View Functions =====

    /// @dev Specify the name of the strategy
    function getName() external pure override returns (string memory) {
        return "BrikedStrategy";
    }

    /// @dev Specify the version of the Strategy, for upgrades
    function version() external pure returns (string memory) {
        return "1.0";
    }

    /// @dev Balance of want currently held in strategy positions
    function balanceOfPool() public view override returns (uint256) {
        return 0;
    }

    /// @dev Returns true if this strategy requires tending
    function isTendable() public view override returns (bool) {
        return false;
    }

    // TODO: update lpcomponent
    // @dev These are the tokens that cannot be moved except by the vault
    function getProtectedTokens()
        public
        view
        override
        returns (address[] memory)
    {
        address[] memory protectedTokens = new address[](5);
        protectedTokens[0] = want;
        protectedTokens[1] = lpComponent;
        protectedTokens[2] = reward;
        return protectedTokens;
    }

    /// ===== Internal Core Implementations =====
    /// @dev security check to avoid moving tokens that would cause a rugpull, edit based on strat
    function _onlyNotProtectedTokens(address _asset) internal override {
        address[] memory protectedTokens = getProtectedTokens();

        for (uint256 x = 0; x < protectedTokens.length; x++) {
            require(
                address(protectedTokens[x]) != _asset,
                "Asset is protected"
            );
        }
    }

    /// @dev invest the amount of want
    /// @notice When this function is called, the controller has already sent want to this
    /// @notice Just get the current balance and then invest accordingly
    function _deposit(uint256 _amount) internal override {
        //NO-OP
    }

    /// @dev utility function to withdraw everything for migration
    function _withdrawAll() internal override {
       //NO-OP
    }

    /// @dev withdraw the specified amount of want, liquidate from lpComponent to want, paying off any necessary debt for the conversion
    function _withdrawSome(uint256 _amount)
        internal
        override
        returns (uint256)
    {
        return _amount;
    }

    /// @dev Harvest from strategy mechanics, realizing increase in underlying position
    function harvest() external whenNotPaused returns (uint256 harvested) {
        _onlyAuthorizedActors();
        //NO-OP
        return 0;
    }

    /// @dev Rebalance, Compound or Pay off debt here
    function tend() external whenNotPaused {
        _onlyAuthorizedActors();
        //NO-OP
    }
}