creation_sourcecode: // SPDX-License-Identifier: MIT
  // File: contracts/BIFI/interfaces/convex/IConvex.sol
  
  
  pragma solidity >=0.6.0 <0.9.0;
  
  interface IConvexBooster {
      function deposit(uint256 pid, uint256 amount, bool stake) external returns (bool);
      function earmarkRewards(uint256 _pid) external;
      function poolInfo(uint256 pid) external view returns (
          address lptoken,
          address token,
          address gauge,
          address crvRewards,
          address stash,
          bool shutdown
      );
  }
  
  interface IConvexBoosterL2 {
      function deposit(uint256 _pid, uint256 _amount) external returns (bool);
      function poolInfo(uint256 pid) external view returns (
          address lptoken, //the curve lp token
          address gauge, //the curve gauge
          address rewards, //the main reward/staking contract
          bool shutdown, //is this pool shutdown?
          address factory //a reference to the curve factory used to create this pool (needed for minting crv)
      );
  }
  
  interface IConvexRewardPool {
      function balanceOf(address account) external view returns (uint256);
      function earned(address account) external view returns (uint256);
      function periodFinish() external view returns (uint256);
      function getReward() external;
      function getReward(address _account, bool _claimExtras) external;
      function getReward(address _account) external;
      function withdrawAndUnwrap(uint256 _amount, bool claim) external;
      function withdrawAllAndUnwrap(bool claim) external;
  
      // L2 interface
      function withdraw(uint256 _amount, bool _claim) external;
      function emergencyWithdraw(uint256 _amount) external;
  }
  
  // File: contracts/BIFI/interfaces/curve/ICrvMinter.sol
  
  
  pragma solidity >=0.6.0;
  
  interface ICrvMinter {
      function mint(address _gauge) external;
  }
  
  // File: contracts/BIFI/interfaces/curve/IRewardsGauge.sol
  
  
  pragma solidity >=0.6.0 <0.9.0;
  
  interface IRewardsGauge {
      function balanceOf(address account) external view returns (uint256);
      function claimable_reward(address _addr, address _token) external view returns (uint256);
      function claim_rewards(address _addr) external;
      function deposit(uint256 _value) external;
      function withdraw(uint256 _value) external;
      function reward_contract() external view returns (address);
  }
  
  // File: @openzeppelin-4/contracts/token/ERC20/IERC20.sol
  
  // OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)
  
  pragma solidity ^0.8.0;
  
  /**
   * @dev Interface of the ERC20 standard as defined in the EIP.
   */
  interface IERC20 {
      /**
       * @dev Emitted when `value` tokens are moved from one account (`from`) to
       * another (`to`).
       *
       * Note that `value` may be zero.
       */
      event Transfer(address indexed from, address indexed to, uint256 value);
  
      /**
       * @dev Emitted when the allowance of a `spender` for an `owner` is set by
       * a call to {approve}. `value` is the new allowance.
       */
      event Approval(address indexed owner, address indexed spender, uint256 value);
  
      /**
       * @dev Returns the amount of tokens in existence.
       */
      function totalSupply() external view returns (uint256);
  
      /**
       * @dev Returns the amount of tokens owned by `account`.
       */
      function balanceOf(address account) external view returns (uint256);
  
      /**
       * @dev Moves `amount` tokens from the caller's account to `to`.
       *
       * Returns a boolean value indicating whether the operation succeeded.
       *
       * Emits a {Transfer} event.
       */
      function transfer(address to, uint256 amount) external returns (bool);
  
      /**
       * @dev Returns the remaining number of tokens that `spender` will be
       * allowed to spend on behalf of `owner` through {transferFrom}. This is
       * zero by default.
       *
       * This value changes when {approve} or {transferFrom} are called.
       */
      function allowance(address owner, address spender) external view returns (uint256);
  
      /**
       * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
       *
       * Returns a boolean value indicating whether the operation succeeded.
       *
       * IMPORTANT: Beware that changing an allowance with this method brings the risk
       * that someone may use both the old and the new allowance by unfortunate
       * transaction ordering. One possible solution to mitigate this race
       * condition is to first reduce the spender's allowance to 0 and set the
       * desired value afterwards:
       * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
       *
       * Emits an {Approval} event.
       */
      function approve(address spender, uint256 amount) external returns (bool);
  
      /**
       * @dev Moves `amount` tokens from `from` to `to` using the
       * allowance mechanism. `amount` is then deducted from the caller's
       * allowance.
       *
       * Returns a boolean value indicating whether the operation succeeded.
       *
       * Emits a {Transfer} event.
       */
      function transferFrom(
          address from,
          address to,
          uint256 amount
      ) external returns (bool);
  }
  
  // File: @openzeppelin-4/contracts/token/ERC20/extensions/draft-IERC20Permit.sol
  
  // OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/draft-IERC20Permit.sol)
  
  pragma solidity ^0.8.0;
  
  /**
   * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
   * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
   *
   * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
   * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
   * need to send a transaction, and thus is not required to hold Ether at all.
   */
  interface IERC20Permit {
      /**
       * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
       * given ``owner``'s signed approval.
       *
       * IMPORTANT: The same issues {IERC20-approve} has related to transaction
       * ordering also apply here.
       *
       * Emits an {Approval} event.
       *
       * Requirements:
       *
       * - `spender` cannot be the zero address.
       * - `deadline` must be a timestamp in the future.
       * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
       * over the EIP712-formatted function arguments.
       * - the signature must use ``owner``'s current nonce (see {nonces}).
       *
       * For more information on the signature format, see the
       * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
       * section].
       */
      function permit(
          address owner,
          address spender,
          uint256 value,
          uint256 deadline,
          uint8 v,
          bytes32 r,
          bytes32 s
      ) external;
  
      /**
       * @dev Returns the current nonce for `owner`. This value must be
       * included whenever a signature is generated for {permit}.
       *
       * Every successful call to {permit} increases ``owner``'s nonce by one. This
       * prevents a signature from being used multiple times.
       */
      function nonces(address owner) external view returns (uint256);
  
      /**
       * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.
       */
      // solhint-disable-next-line func-name-mixedcase
      function DOMAIN_SEPARATOR() external view returns (bytes32);
  }
  
  // File: @openzeppelin-4/contracts/utils/Address.sol
  
  // OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol)
  
  pragma solidity ^0.8.1;
  
  /**
   * @dev Collection of functions related to the address type
   */
  library Address {
      /**
       * @dev Returns true if `account` is a contract.
       *
       * [IMPORTANT]
       * ====
       * It is unsafe to assume that an address for which this function returns
       * false is an externally-owned account (EOA) and not a contract.
       *
       * Among others, `isContract` will return false for the following
       * types of addresses:
       *
       *  - an externally-owned account
       *  - a contract in construction
       *  - an address where a contract will be created
       *  - an address where a contract lived, but was destroyed
       * ====
       *
       * [IMPORTANT]
       * ====
       * You shouldn't rely on `isContract` to protect against flash loan attacks!
       *
       * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
       * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
       * constructor.
       * ====
       */
      function isContract(address account) internal view returns (bool) {
          // This method relies on extcodesize/address.code.length, which returns 0
          // for contracts in construction, since the code is only stored at the end
          // of the constructor execution.
  
          return account.code.length > 0;
      }
  
      /**
       * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
       * `recipient`, forwarding all available gas and reverting on errors.
       *
       * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
       * of certain opcodes, possibly making contracts go over the 2300 gas limit
       * imposed by `transfer`, making them unable to receive funds via
       * `transfer`. {sendValue} removes this limitation.
       *
       * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
       *
       * IMPORTANT: because control is transferred to `recipient`, care must be
       * taken to not create reentrancy vulnerabilities. Consider using
       * {ReentrancyGuard} or the
       * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
       */
      function sendValue(address payable recipient, uint256 amount) internal {
          require(address(this).balance >= amount, "Address: insufficient balance");
  
          (bool success, ) = recipient.call{value: amount}("");
          require(success, "Address: unable to send value, recipient may have reverted");
      }
  
      /**
       * @dev Performs a Solidity function call using a low level `call`. A
       * plain `call` is an unsafe replacement for a function call: use this
       * function instead.
       *
       * If `target` reverts with a revert reason, it is bubbled up by this
       * function (like regular Solidity function calls).
       *
       * Returns the raw returned data. To convert to the expected return value,
       * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
       *
       * Requirements:
       *
       * - `target` must be a contract.
       * - calling `target` with `data` must not revert.
       *
       * _Available since v3.1._
       */
      function functionCall(address target, bytes memory data) internal returns (bytes memory) {
          return 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
                  /// @solidity memory-safe-assembly
                  assembly {
                      let returndata_size := mload(returndata)
                      revert(add(32, returndata), returndata_size)
                  }
              } else {
                  revert(errorMessage);
              }
          }
      }
  }
  
  // File: @openzeppelin-4/contracts/token/ERC20/utils/SafeERC20.sol
  
  // OpenZeppelin Contracts (last updated v4.7.0) (token/ERC20/utils/SafeERC20.sol)
  
  pragma solidity ^0.8.0;
  
  
  
  /**
   * @title SafeERC20
   * @dev Wrappers around ERC20 operations that throw on failure (when the token
   * contract returns false). Tokens that return no value (and instead revert or
   * throw on failure) are also supported, non-reverting calls are assumed to be
   * successful.
   * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
   * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
   */
  library SafeERC20 {
      using Address for address;
  
      function safeTransfer(
          IERC20 token,
          address to,
          uint256 value
      ) internal {
          _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
      }
  
      function safeTransferFrom(
          IERC20 token,
          address from,
          address to,
          uint256 value
      ) internal {
          _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
      }
  
      /**
       * @dev Deprecated. This function has issues similar to the ones found in
       * {IERC20-approve}, and its usage is discouraged.
       *
       * Whenever possible, use {safeIncreaseAllowance} and
       * {safeDecreaseAllowance} instead.
       */
      function safeApprove(
          IERC20 token,
          address spender,
          uint256 value
      ) internal {
          // safeApprove should only be called when setting an initial allowance,
          // or when resetting it to zero. To increase and decrease it, use
          // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
          require(
              (value == 0) || (token.allowance(address(this), spender) == 0),
              "SafeERC20: approve from non-zero to non-zero allowance"
          );
          _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
      }
  
      function safeIncreaseAllowance(
          IERC20 token,
          address spender,
          uint256 value
      ) internal {
          uint256 newAllowance = token.allowance(address(this), spender) + value;
          _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
      }
  
      function safeDecreaseAllowance(
          IERC20 token,
          address spender,
          uint256 value
      ) internal {
          unchecked {
              uint256 oldAllowance = token.allowance(address(this), spender);
              require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
              uint256 newAllowance = oldAllowance - value;
              _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
          }
      }
  
      function safePermit(
          IERC20Permit token,
          address owner,
          address spender,
          uint256 value,
          uint256 deadline,
          uint8 v,
          bytes32 r,
          bytes32 s
      ) internal {
          uint256 nonceBefore = token.nonces(owner);
          token.permit(owner, spender, value, deadline, v, r, s);
          uint256 nonceAfter = token.nonces(owner);
          require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed");
      }
  
      /**
       * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
       * on the return value: the return value is optional (but if data is returned, it must not be false).
       * @param token The token targeted by the call.
       * @param data The call data (encoded using abi.encode or one of its variants).
       */
      function _callOptionalReturn(IERC20 token, bytes memory data) private {
          // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
          // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
          // the target address contains contract code and also asserts for success in the low-level call.
  
          bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
          if (returndata.length > 0) {
              // Return data is optional
              require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
          }
      }
  }
  
  // File: contracts/BIFI/interfaces/beefy/IBeefySwapper.sol
  
  
  pragma solidity 0.8.19;
  
  interface IBeefySwapper {
      function swap(
          address fromToken,
          address toToken,
          uint256 amountIn
      ) external returns (uint256 amountOut);
  
      function swap(
          address fromToken,
          address toToken,
          uint256 amountIn,
          uint256 minAmountOut
      ) external returns (uint256 amountOut);
  
      function getAmountOut(
          address _fromToken,
          address _toToken,
          uint256 _amountIn
      ) external view returns (uint256 amountOut);
  
      struct SwapInfo {
          address router;
          bytes data;
          uint256 amountIndex;
          uint256 minIndex;
          int8 minAmountSign;
      }
  }
  
  // File: @openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol
  
  // OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)
  
  pragma solidity ^0.8.1;
  
  /**
   * @dev Collection of functions related to the address type
   */
  library 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
       *
       * Furthermore, `isContract` will also return true if the target contract within
       * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
       * which only has an effect at the end of a transaction.
       * ====
       *
       * [IMPORTANT]
       * ====
       * You shouldn't rely on `isContract` to protect against flash loan attacks!
       *
       * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
       * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
       * constructor.
       * ====
       */
      function isContract(address account) internal view returns (bool) {
          // This method relies on extcodesize/address.code.length, which returns 0
          // for contracts in construction, since the code is only stored at the end
          // of the constructor execution.
  
          return account.code.length > 0;
      }
  
      /**
       * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
       * `recipient`, forwarding all available gas and reverting on errors.
       *
       * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
       * of certain opcodes, possibly making contracts go over the 2300 gas limit
       * imposed by `transfer`, making them unable to receive funds via
       * `transfer`. {sendValue} removes this limitation.
       *
       * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
       *
       * IMPORTANT: because control is transferred to `recipient`, care must be
       * taken to not create reentrancy vulnerabilities. Consider using
       * {ReentrancyGuard} or the
       * https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
       */
      function sendValue(address payable recipient, uint256 amount) internal {
          require(address(this).balance >= amount, "Address: insufficient balance");
  
          (bool success, ) = recipient.call{value: amount}("");
          require(success, "Address: unable to send value, recipient may have reverted");
      }
  
      /**
       * @dev Performs a Solidity function call using a low level `call`. A
       * plain `call` is an unsafe replacement for a function call: use this
       * function instead.
       *
       * If `target` reverts with a revert reason, it is bubbled up by this
       * function (like regular Solidity function calls).
       *
       * Returns the raw returned data. To convert to the expected return value,
       * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
       *
       * Requirements:
       *
       * - `target` must be a contract.
       * - calling `target` with `data` must not revert.
       *
       * _Available since v3.1._
       */
      function functionCall(address target, bytes memory data) internal returns (bytes memory) {
          return functionCallWithValue(target, data, 0, "Address: low-level call failed");
      }
  
      /**
       * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
       * `errorMessage` as a fallback revert reason when `target` reverts.
       *
       * _Available since v3.1._
       */
      function functionCall(
          address target,
          bytes memory data,
          string memory errorMessage
      ) internal returns (bytes memory) {
          return functionCallWithValue(target, data, 0, errorMessage);
      }
  
      /**
       * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
       * but also transferring `value` wei to `target`.
       *
       * Requirements:
       *
       * - the calling contract must have an ETH balance of at least `value`.
       * - the called Solidity function must be `payable`.
       *
       * _Available since v3.1._
       */
      function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
          return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
      }
  
      /**
       * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
       * with `errorMessage` as a fallback revert reason when `target` reverts.
       *
       * _Available since v3.1._
       */
      function functionCallWithValue(
          address target,
          bytes memory data,
          uint256 value,
          string memory errorMessage
      ) internal returns (bytes memory) {
          require(address(this).balance >= value, "Address: insufficient balance for call");
          (bool success, bytes memory returndata) = target.call{value: value}(data);
          return verifyCallResultFromTarget(target, success, returndata, errorMessage);
      }
  
      /**
       * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
       * but performing a static call.
       *
       * _Available since v3.3._
       */
      function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
          return functionStaticCall(target, data, "Address: low-level static call failed");
      }
  
      /**
       * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
       * but performing a static call.
       *
       * _Available since v3.3._
       */
      function functionStaticCall(
          address target,
          bytes memory data,
          string memory errorMessage
      ) internal view returns (bytes memory) {
          (bool success, bytes memory returndata) = target.staticcall(data);
          return verifyCallResultFromTarget(target, success, returndata, errorMessage);
      }
  
      /**
       * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
       * but performing a delegate call.
       *
       * _Available since v3.4._
       */
      function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
          return functionDelegateCall(target, data, "Address: low-level delegate call failed");
      }
  
      /**
       * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
       * but performing a delegate call.
       *
       * _Available since v3.4._
       */
      function functionDelegateCall(
          address target,
          bytes memory data,
          string memory errorMessage
      ) internal returns (bytes memory) {
          (bool success, bytes memory returndata) = target.delegatecall(data);
          return verifyCallResultFromTarget(target, success, returndata, errorMessage);
      }
  
      /**
       * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
       * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
       *
       * _Available since v4.8._
       */
      function verifyCallResultFromTarget(
          address target,
          bool success,
          bytes memory returndata,
          string memory errorMessage
      ) internal view returns (bytes memory) {
          if (success) {
              if (returndata.length == 0) {
                  // only check isContract if the call was successful and the return data is empty
                  // otherwise we already know that it was a contract
                  require(isContract(target), "Address: call to non-contract");
              }
              return returndata;
          } else {
              _revert(returndata, errorMessage);
          }
      }
  
      /**
       * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
       * revert reason or using the provided one.
       *
       * _Available since v4.3._
       */
      function verifyCallResult(
          bool success,
          bytes memory returndata,
          string memory errorMessage
      ) internal pure returns (bytes memory) {
          if (success) {
              return returndata;
          } else {
              _revert(returndata, errorMessage);
          }
      }
  
      function _revert(bytes memory returndata, string memory errorMessage) private pure {
          // Look for revert reason and bubble it up if present
          if (returndata.length > 0) {
              // The easiest way to bubble the revert reason is using memory via assembly
              /// @solidity memory-safe-assembly
              assembly {
                  let returndata_size := mload(returndata)
                  revert(add(32, returndata), returndata_size)
              }
          } else {
              revert(errorMessage);
          }
      }
  }
  
  // File: @openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol
  
  // OpenZeppelin Contracts (last updated v4.9.0) (proxy/utils/Initializable.sol)
  
  pragma solidity ^0.8.2;
  
  /**
   * @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 proxied contracts do not make use of 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.
   *
   * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
   * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
   * case an upgrade adds a module that needs to be initialized.
   *
   * For example:
   *
   * [.hljs-theme-light.nopadding]
   * ```solidity
   * contract MyToken is ERC20Upgradeable {
   *     function initialize() initializer public {
   *         __ERC20_init("MyToken", "MTK");
   *     }
   * }
   *
   * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
   *     function initializeV2() reinitializer(2) public {
   *         __ERC20Permit_init("MyToken");
   *     }
   * }
   * ```
   *
   * 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 {ERC1967Proxy-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.
   *
   * [CAUTION]
   * ====
   * Avoid leaving a contract uninitialized.
   *
   * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
   * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
   * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
   *
   * [.hljs-theme-light.nopadding]
   * ```
   * /// @custom:oz-upgrades-unsafe-allow constructor
   * constructor() {
   *     _disableInitializers();
   * }
   * ```
   * ====
   */
  abstract contract Initializable {
      /**
       * @dev Indicates that the contract has been initialized.
       * @custom:oz-retyped-from bool
       */
      uint8 private _initialized;
  
      /**
       * @dev Indicates that the contract is in the process of being initialized.
       */
      bool private _initializing;
  
      /**
       * @dev Triggered when the contract has been initialized or reinitialized.
       */
      event Initialized(uint8 version);
  
      /**
       * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
       * `onlyInitializing` functions can be used to initialize parent contracts.
       *
       * Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a
       * constructor.
       *
       * Emits an {Initialized} event.
       */
      modifier initializer() {
          bool isTopLevelCall = !_initializing;
          require(
              (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),
              "Initializable: contract is already initialized"
          );
          _initialized = 1;
          if (isTopLevelCall) {
              _initializing = true;
          }
          _;
          if (isTopLevelCall) {
              _initializing = false;
              emit Initialized(1);
          }
      }
  
      /**
       * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
       * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
       * used to initialize parent contracts.
       *
       * A reinitializer may be used after the original initialization step. This is essential to configure modules that
       * are added through upgrades and that require initialization.
       *
       * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`
       * cannot be nested. If one is invoked in the context of another, execution will revert.
       *
       * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
       * a contract, executing them in the right order is up to the developer or operator.
       *
       * WARNING: setting the version to 255 will prevent any future reinitialization.
       *
       * Emits an {Initialized} event.
       */
      modifier reinitializer(uint8 version) {
          require(!_initializing && _initialized < version, "Initializable: contract is already initialized");
          _initialized = version;
          _initializing = true;
          _;
          _initializing = false;
          emit Initialized(version);
      }
  
      /**
       * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
       * {initializer} and {reinitializer} modifiers, directly or indirectly.
       */
      modifier onlyInitializing() {
          require(_initializing, "Initializable: contract is not initializing");
          _;
      }
  
      /**
       * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
       * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
       * to any version. It is recommended to use this to lock implementation contracts that are designed to be called
       * through proxies.
       *
       * Emits an {Initialized} event the first time it is successfully executed.
       */
      function _disableInitializers() internal virtual {
          require(!_initializing, "Initializable: contract is initializing");
          if (_initialized != type(uint8).max) {
              _initialized = type(uint8).max;
              emit Initialized(type(uint8).max);
          }
      }
  
      /**
       * @dev Returns the highest version that has been initialized. See {reinitializer}.
       */
      function _getInitializedVersion() internal view returns (uint8) {
          return _initialized;
      }
  
      /**
       * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.
       */
      function _isInitializing() internal view returns (bool) {
          return _initializing;
      }
  }
  
  // File: @openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol
  
  // OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
  
  pragma solidity ^0.8.0;
  
  /**
   * @dev Provides information about the current execution context, including the
   * sender of the transaction and its data. While these are generally available
   * via msg.sender and msg.data, they should not be accessed in such a direct
   * manner, since when dealing with meta-transactions the account sending and
   * paying for execution may not be the actual sender (as far as an application
   * is concerned).
   *
   * This contract is only required for intermediate, library-like contracts.
   */
  abstract contract ContextUpgradeable is Initializable {
      function __Context_init() internal onlyInitializing {
      }
  
      function __Context_init_unchained() internal onlyInitializing {
      }
      function _msgSender() internal view virtual returns (address) {
          return msg.sender;
      }
  
      function _msgData() internal view virtual returns (bytes calldata) {
          return msg.data;
      }
  
      /**
       * @dev This empty reserved space is put in place to allow future versions to add new
       * variables without shifting down storage in the inheritance chain.
       * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
       */
      uint256[50] private __gap;
  }
  
  // File: @openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol
  
  // OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol)
  
  pragma solidity ^0.8.0;
  
  
  /**
   * @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 OwnableUpgradeable is Initializable, ContextUpgradeable {
      address private _owner;
  
      event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
  
      /**
       * @dev Initializes the contract setting the deployer as the initial owner.
       */
      function __Ownable_init() internal onlyInitializing {
          __Ownable_init_unchained();
      }
  
      function __Ownable_init_unchained() internal onlyInitializing {
          _transferOwnership(_msgSender());
      }
  
      /**
       * @dev Throws if called by any account other than the owner.
       */
      modifier onlyOwner() {
          _checkOwner();
          _;
      }
  
      /**
       * @dev Returns the address of the current owner.
       */
      function owner() public view virtual returns (address) {
          return _owner;
      }
  
      /**
       * @dev Throws if the sender is not the owner.
       */
      function _checkOwner() internal view virtual {
          require(owner() == _msgSender(), "Ownable: caller is not the owner");
      }
  
      /**
       * @dev Leaves the contract without owner. It will not be possible to call
       * `onlyOwner` functions. Can only be called by the current owner.
       *
       * NOTE: Renouncing ownership will leave the contract without an owner,
       * thereby disabling any functionality that is only available to the owner.
       */
      function renounceOwnership() public virtual onlyOwner {
          _transferOwnership(address(0));
      }
  
      /**
       * @dev Transfers ownership of the contract to a new account (`newOwner`).
       * Can only be called by the current owner.
       */
      function transferOwnership(address newOwner) public virtual onlyOwner {
          require(newOwner != address(0), "Ownable: new owner is the zero address");
          _transferOwnership(newOwner);
      }
  
      /**
       * @dev Transfers ownership of the contract to a new account (`newOwner`).
       * Internal function without access restriction.
       */
      function _transferOwnership(address newOwner) internal virtual {
          address oldOwner = _owner;
          _owner = newOwner;
          emit OwnershipTransferred(oldOwner, newOwner);
      }
  
      /**
       * @dev This empty reserved space is put in place to allow future versions to add new
       * variables without shifting down storage in the inheritance chain.
       * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
       */
      uint256[49] private __gap;
  }
  
  // File: @openzeppelin/contracts-upgradeable/security/PausableUpgradeable.sol
  
  // OpenZeppelin Contracts (last updated v4.7.0) (security/Pausable.sol)
  
  pragma solidity ^0.8.0;
  
  
  /**
   * @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.
   */
  abstract 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 onlyInitializing {
          __Pausable_init_unchained();
      }
  
      function __Pausable_init_unchained() internal onlyInitializing {
          _paused = false;
      }
  
      /**
       * @dev Modifier to make a function callable only when the contract is not paused.
       *
       * Requirements:
       *
       * - The contract must not be paused.
       */
      modifier whenNotPaused() {
          _requireNotPaused();
          _;
      }
  
      /**
       * @dev Modifier to make a function callable only when the contract is paused.
       *
       * Requirements:
       *
       * - The contract must be paused.
       */
      modifier whenPaused() {
          _requirePaused();
          _;
      }
  
      /**
       * @dev Returns true if the contract is paused, and false otherwise.
       */
      function paused() public view virtual returns (bool) {
          return _paused;
      }
  
      /**
       * @dev Throws if the contract is paused.
       */
      function _requireNotPaused() internal view virtual {
          require(!paused(), "Pausable: paused");
      }
  
      /**
       * @dev Throws if the contract is not paused.
       */
      function _requirePaused() internal view virtual {
          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());
      }
  
      /**
       * @dev This empty reserved space is put in place to allow future versions to add new
       * variables without shifting down storage in the inheritance chain.
       * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
       */
      uint256[49] private __gap;
  }
  
  // File: contracts/BIFI/interfaces/common/IFeeConfig.sol
  
  
  pragma solidity ^0.8.0;
  
  interface IFeeConfig {
      struct FeeCategory {
          uint256 total;
          uint256 beefy;
          uint256 call;
          uint256 strategist;
          string label;
          bool active;
      }
      struct AllFees {
          FeeCategory performance;
          uint256 deposit;
          uint256 withdraw;
      }
      function getFees(address strategy) external view returns (FeeCategory memory);
      function stratFeeId(address strategy) external view returns (uint256);
      function setStratFeeId(uint256 feeId) external;
  }
  
  // File: contracts/BIFI/strategies/Common/StratFeeManagerInitializable.sol
  
  
  pragma solidity ^0.8.0;
  
  
  
  contract StratFeeManagerInitializable is OwnableUpgradeable, PausableUpgradeable {
  
      struct CommonAddresses {
          address vault;
          address unirouter;
          address keeper;
          address strategist;
          address beefyFeeRecipient;
          address beefyFeeConfig;
      }
  
      // common addresses for the strategy
      address public vault;
      address public unirouter;
      address public keeper;
      address public strategist;
      address public beefyFeeRecipient;
      IFeeConfig public beefyFeeConfig;
  
      uint256 constant DIVISOR = 1 ether;
      uint256 constant public WITHDRAWAL_FEE_CAP = 50;
      uint256 constant public WITHDRAWAL_MAX = 10000;
      uint256 internal withdrawalFee;
  
      event SetStratFeeId(uint256 feeId);
      event SetWithdrawalFee(uint256 withdrawalFee);
      event SetVault(address vault);
      event SetUnirouter(address unirouter);
      event SetKeeper(address keeper);
      event SetStrategist(address strategist);
      event SetBeefyFeeRecipient(address beefyFeeRecipient);
      event SetBeefyFeeConfig(address beefyFeeConfig);
  
      function __StratFeeManager_init(CommonAddresses calldata _commonAddresses) internal onlyInitializing {
          __Ownable_init();
          __Pausable_init();
          vault = _commonAddresses.vault;
          unirouter = _commonAddresses.unirouter;
          keeper = _commonAddresses.keeper;
          strategist = _commonAddresses.strategist;
          beefyFeeRecipient = _commonAddresses.beefyFeeRecipient;
          beefyFeeConfig = IFeeConfig(_commonAddresses.beefyFeeConfig);
          withdrawalFee = 10;
      }
  
      // checks that caller is either owner or keeper.
      modifier onlyManager() {
          _checkManager();
          _;
      }
  
      function _checkManager() internal view {
          require(msg.sender == owner() || msg.sender == keeper, "!manager");
      }
  
      // fetch fees from config contract
      function getFees() internal view returns (IFeeConfig.FeeCategory memory) {
          return beefyFeeConfig.getFees(address(this));
      }
  
      // fetch fees from config contract and dynamic deposit/withdraw fees
      function getAllFees() external view returns (IFeeConfig.AllFees memory) {
          return IFeeConfig.AllFees(getFees(), depositFee(), withdrawFee());
      }
  
      function getStratFeeId() external view returns (uint256) {
          return beefyFeeConfig.stratFeeId(address(this));
      }
  
      function setStratFeeId(uint256 _feeId) external onlyManager {
          beefyFeeConfig.setStratFeeId(_feeId);
          emit SetStratFeeId(_feeId);
      }
  
      // adjust withdrawal fee
      function setWithdrawalFee(uint256 _fee) public onlyManager {
          require(_fee <= WITHDRAWAL_FEE_CAP, "!cap");
          withdrawalFee = _fee;
          emit SetWithdrawalFee(_fee);
      }
  
      // set new vault (only for strategy upgrades)
      function setVault(address _vault) external onlyOwner {
          vault = _vault;
          emit SetVault(_vault);
      }
  
      // set new unirouter
      function setUnirouter(address _unirouter) external onlyOwner {
          unirouter = _unirouter;
          emit SetUnirouter(_unirouter);
      }
  
      // set new keeper to manage strat
      function setKeeper(address _keeper) external onlyManager {
          keeper = _keeper;
          emit SetKeeper(_keeper);
      }
  
      // set new strategist address to receive strat fees
      function setStrategist(address _strategist) external {
          require(msg.sender == strategist, "!strategist");
          strategist = _strategist;
          emit SetStrategist(_strategist);
      }
  
      // set new beefy fee address to receive beefy fees
      function setBeefyFeeRecipient(address _beefyFeeRecipient) external onlyOwner {
          beefyFeeRecipient = _beefyFeeRecipient;
          emit SetBeefyFeeRecipient(_beefyFeeRecipient);
      }
  
      // set new fee config address to fetch fees
      function setBeefyFeeConfig(address _beefyFeeConfig) external onlyOwner {
          beefyFeeConfig = IFeeConfig(_beefyFeeConfig);
          emit SetBeefyFeeConfig(_beefyFeeConfig);
      }
  
      function depositFee() public virtual view returns (uint256) {
          return 0;
      }
  
      function withdrawFee() public virtual view returns (uint256) {
          return paused() ? 0 : withdrawalFee;
      }
  
      function beforeDeposit() external virtual {}
  }
  
  // File: contracts/BIFI/strategies/Common/BaseAllToNativeStrat.sol
  
  
  pragma solidity ^0.8.0;
  
  
  
  abstract contract BaseAllToNativeStrat is StratFeeManagerInitializable {
      using SafeERC20 for IERC20;
  
      address[] public rewards;
      mapping(address => uint) public minAmounts; // tokens minimum amount to be swapped
  
      address public want;
      address public native;
      address public depositToken;
      uint256 public lastHarvest;
      uint256 public totalLocked;
      uint256 public lockDuration;
      bool public harvestOnDeposit;
  
      event StratHarvest(address indexed harvester, uint256 wantHarvested, uint256 tvl);
      event Deposit(uint256 tvl);
      event Withdraw(uint256 tvl);
      event ChargedFees(uint256 callFees, uint256 beefyFees, uint256 strategistFees);
  
      function __BaseStrategy_init(address _want, address _native, address[] calldata _rewards, CommonAddresses calldata _commonAddresses) internal onlyInitializing {
          __StratFeeManager_init(_commonAddresses);
          want = _want;
          native = _native;
  
          for (uint i; i < _rewards.length; i++) {
              addReward(_rewards[i]);
          }
  
          lockDuration = 1 days;
          setWithdrawalFee(0);
          _giveAllowances();
      }
  
      // it calculates how much 'want' the strategy has working in the farm.
      function balanceOfPool() public view virtual returns (uint);
      function _deposit(uint amount) internal virtual;
      function _withdraw(uint amount) internal virtual;
      function _emergencyWithdraw() internal virtual;
      function _claim() internal virtual;
      function _verifyRewardToken(address token) internal view virtual;
      function _giveAllowances() internal virtual;
      function _removeAllowances() internal virtual;
  
      // puts the funds to work
      function deposit() public whenNotPaused {
          uint256 wantBal = balanceOfWant();
          if (wantBal > 0) {
              _deposit(wantBal);
              emit Deposit(balanceOf());
          }
      }
  
      function withdraw(uint256 _amount) external {
          require(msg.sender == vault, "!vault");
  
          uint256 wantBal = balanceOfWant();
  
          if (wantBal < _amount) {
              _withdraw(_amount - wantBal);
              wantBal = balanceOfWant();
          }
  
          if (wantBal > _amount) {
              wantBal = _amount;
          }
  
          if (tx.origin != owner() && !paused()) {
              uint256 withdrawalFeeAmount = wantBal * withdrawalFee / WITHDRAWAL_MAX;
              wantBal = wantBal - withdrawalFeeAmount;
          }
  
          IERC20(want).safeTransfer(vault, wantBal);
  
          emit Withdraw(balanceOf());
      }
  
      function beforeDeposit() external override {
          if (harvestOnDeposit) {
              require(msg.sender == vault, "!vault");
              _harvest(tx.origin, true);
          }
      }
  
      function harvest() external virtual {
          _harvest(tx.origin, false);
      }
  
      function harvest(address callFeeRecipient) external virtual {
          _harvest(callFeeRecipient, false);
      }
  
      // compounds earnings and charges performance fee
      function _harvest(address callFeeRecipient, bool onDeposit) internal whenNotPaused {
          _claim();
          _swapRewardsToNative();
          uint256 nativeBal = IERC20(native).balanceOf(address(this));
          if (nativeBal > minAmounts[native]) {
              _chargeFees(callFeeRecipient);
              _swapNativeToWant();
              uint256 wantHarvested = balanceOfWant();
              totalLocked = wantHarvested + lockedProfit();
              lastHarvest = block.timestamp;
  
              if (!onDeposit) {
                  deposit();
              }
  
              emit StratHarvest(msg.sender, wantHarvested, balanceOf());
          }
      }
  
      function _swapRewardsToNative() internal virtual {
          for (uint i; i < rewards.length; ++i) {
              address token = rewards[i];
              uint256 amount = IERC20(token).balanceOf(address(this));
              if (amount > minAmounts[token]) {
                  IBeefySwapper(unirouter).swap(token, native, amount);
              }
          }
      }
  
      // performance fees
      function _chargeFees(address callFeeRecipient) internal {
          IFeeConfig.FeeCategory memory fees = getFees();
          uint256 nativeBal = IERC20(native).balanceOf(address(this)) * fees.total / DIVISOR;
  
          uint256 callFeeAmount = nativeBal * fees.call / DIVISOR;
          IERC20(native).safeTransfer(callFeeRecipient, callFeeAmount);
  
          uint256 beefyFeeAmount = nativeBal * fees.beefy / DIVISOR;
          IERC20(native).safeTransfer(beefyFeeRecipient, beefyFeeAmount);
  
          uint256 strategistFeeAmount = nativeBal * fees.strategist / DIVISOR;
          IERC20(native).safeTransfer(strategist, strategistFeeAmount);
  
          emit ChargedFees(callFeeAmount, beefyFeeAmount, strategistFeeAmount);
      }
  
      function _swapNativeToWant() internal virtual {
          if (depositToken == address(0)) {
              _swap(native, want);
          } else {
              if (depositToken != native) {
                  _swap(native, depositToken);
              }
              _swap(depositToken, want);
          }
      }
  
      function _swap(address tokenFrom, address tokenTo) internal {
          uint bal = IERC20(tokenFrom).balanceOf(address(this));
          IBeefySwapper(unirouter).swap(tokenFrom, tokenTo, bal);
      }
  
      function rewardsLength() external view returns (uint) {
          return rewards.length;
      }
  
      function addReward(address _token) public onlyManager {
          require(_token != want, "!want");
          require(_token != native, "!native");
          _verifyRewardToken(_token);
  
          rewards.push(_token);
          _approve(_token, unirouter, 0);
          _approve(_token, unirouter, type(uint).max);
      }
  
      function removeReward(uint i) external onlyManager {
          rewards[i] = rewards[rewards.length - 1];
          rewards.pop();
      }
  
      function resetRewards() external onlyManager {
          for (uint i; i < rewards.length; ++i) {
              _approve(rewards[i], unirouter, 0);
          }
          delete rewards;
      }
  
      function updateUnirouter(address _unirouter) external onlyOwner {
          for (uint i; i < rewards.length; ++i) {
              address token = rewards[i];
              _approve(token, unirouter, 0);
              _approve(token, _unirouter, 0);
              _approve(token, _unirouter, type(uint).max);
          }
          unirouter = _unirouter;
          emit SetUnirouter(_unirouter);
      }
  
      function setRewardMinAmount(address token, uint minAmount) external onlyManager {
          minAmounts[token] = minAmount;
      }
  
      function setDepositToken(address token) public onlyManager {
          if (token == address(0)) {
              depositToken = address(0);
              return;
          }
          require(token != want, "!want");
          _verifyRewardToken(token);
  
          depositToken = token;
          _approve(token, unirouter, 0);
          _approve(token, unirouter, type(uint).max);
      }
  
      function lockedProfit() public view returns (uint256) {
          if (lockDuration == 0) return 0;
          uint256 elapsed = block.timestamp - lastHarvest;
          uint256 remaining = elapsed < lockDuration ? lockDuration - elapsed : 0;
          return totalLocked * remaining / lockDuration;
      }
  
      // calculate the total underlaying 'want' held by the strat.
      function balanceOf() public view returns (uint256) {
          return balanceOfWant() + balanceOfPool() - lockedProfit();
      }
  
      // it calculates how much 'want' this contract holds.
      function balanceOfWant() public view returns (uint256) {
          return IERC20(want).balanceOf(address(this));
      }
  
      function setHarvestOnDeposit(bool _harvestOnDeposit) public onlyManager {
          harvestOnDeposit = _harvestOnDeposit;
          if (harvestOnDeposit) {
              lockDuration = 0;
          } else {
              lockDuration = 1 days;
          }
      }
  
      function setLockDuration(uint _duration) external onlyManager {
          lockDuration = _duration;
      }
  
      function rewardsAvailable() external view virtual returns (uint) {
          return 0;
      }
  
      function callReward() external view virtual returns (uint) {
          return 0;
      }
  
      // called as part of strat migration. Sends all the available funds back to the vault.
      function retireStrat() external {
          require(msg.sender == vault, "!vault");
          _emergencyWithdraw();
          IERC20(want).transfer(vault, balanceOfWant());
      }
  
      // pauses deposits and withdraws all funds from third party systems.
      function panic() public onlyManager {
          pause();
          _emergencyWithdraw();
      }
  
      function pause() public onlyManager {
          _pause();
          _removeAllowances();
      }
  
      function unpause() external onlyManager {
          _unpause();
          _giveAllowances();
          deposit();
      }
  
      function _approve(address _token, address _spender, uint amount) internal {
          IERC20(_token).approve(_spender, amount);
      }
  }
  
  // File: contracts/BIFI/strategies/Curve/StrategyCurveConvex.sol
  
  
  pragma solidity ^0.8.0;
  
  
  
  
  // Curve L1 strategy switchable between Curve and Convex
  contract StrategyCurveConvex is BaseAllToNativeStrat {
  
      // this `pid` means we using Curve gauge and not Convex rewardPool
      uint constant public NO_PID = 42069;
  
      // Tokens used
      address public constant NATIVE = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;
      IConvexBooster public constant booster = IConvexBooster(0xF403C135812408BFbE8713b5A23a04b3D48AAE31);
      ICrvMinter public constant minter = ICrvMinter(0xd061D61a4d941c39E5453435B6345Dc261C2fcE0);
  
      address public gauge; // curve gauge
      address public rewardPool; // convex base reward pool
      uint public pid; // convex booster poolId
  
      bool public isCrvMintable; // if CRV can be minted via Minter (gauge is added to Controller)
      bool public isCurveRewardsClaimable; // if extra rewards in curve gauge should be claimed
      bool public skipEarmarkRewards;
  
      function initialize(
          address _want,
          address _gauge,
          uint _pid,
          address _depositToken,
          address[] calldata _rewards,
          CommonAddresses calldata _commonAddresses
      ) public initializer {
          gauge = _gauge;
          pid = _pid;
  
          if (_pid != NO_PID) {
              (,,, rewardPool,,) = booster.poolInfo(_pid);
          }
          isCurveRewardsClaimable = true;
  
          __BaseStrategy_init(_want, NATIVE, _rewards, _commonAddresses);
          setDepositToken(_depositToken);
      }
  
      function balanceOfPool() public view override returns (uint) {
          if (rewardPool != address(0)) {
              return IConvexRewardPool(rewardPool).balanceOf(address(this));
          } else {
              return IRewardsGauge(gauge).balanceOf(address(this));
          }
      }
  
      function _deposit(uint amount) internal override {
          if (rewardPool != address(0)) {
              booster.deposit(pid, amount, true);
          } else {
              IRewardsGauge(gauge).deposit(amount);
          }
      }
  
      function _withdraw(uint amount) internal override {
          if (amount > 0) {
              if (rewardPool != address(0)) {
                  IConvexRewardPool(rewardPool).withdrawAndUnwrap(amount, false);
              } else {
                  IRewardsGauge(gauge).withdraw(amount);
              }
          }
      }
  
      function _emergencyWithdraw() internal override {
          _withdraw(balanceOfPool());
      }
  
      function _claim() internal override {
          if (rewardPool != address(0)) {
              if (!skipEarmarkRewards && IConvexRewardPool(rewardPool).periodFinish() < block.timestamp) {
                  booster.earmarkRewards(pid);
              }
              IConvexRewardPool(rewardPool).getReward();
          } else {
              if (isCrvMintable) minter.mint(gauge);
              if (isCurveRewardsClaimable) IRewardsGauge(gauge).claim_rewards(address(this));
          }
      }
  
      function _verifyRewardToken(address token) internal view override {
          require(token != gauge, "!gauge");
          require(token != rewardPool, "!rewardPool");
      }
  
      function _giveAllowances() internal override {
          uint amount = type(uint).max;
          _approve(want, address(gauge), amount);
          _approve(want, address(booster), amount);
          _approve(native, unirouter, amount);
      }
  
      function _removeAllowances() internal override {
          _approve(want, address(gauge), 0);
          _approve(want, address(booster), 0);
          _approve(native, unirouter, 0);
      }
  
      function setConvexPid(uint _pid) external onlyOwner {
          _withdraw(balanceOfPool());
          if (_pid != NO_PID) {
              (,,,rewardPool,,) = booster.poolInfo(_pid);
          } else {
              rewardPool = address(0);
          }
          pid = _pid;
          deposit();
      }
  
      function setCrvMintable(bool _isCrvMintable) external onlyManager {
          isCrvMintable = _isCrvMintable;
      }
  
      function setCurveRewardsClaimable(bool _isCurveRewardsClaimable) external onlyManager {
          isCurveRewardsClaimable = _isCurveRewardsClaimable;
      }
  
      function setSkipEarmarkRewards(bool _skipEarmarkRewards) external onlyManager {
          skipEarmarkRewards = _skipEarmarkRewards;
      }
  
  }