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// SPDX-License-Identifier: MIT
pragma solidity 0.8.11;

import { Ownable } from "@openzeppelin/contracts-0.8/access/Ownable.sol";
import { SafeERC20 } from "@openzeppelin/contracts-0.8/token/ERC20/utils/SafeERC20.sol";
import { IERC20 } from "@openzeppelin/contracts-0.8/token/ERC20/IERC20.sol";
import { IGenericVault } from "../interfaces/IGenericVault.sol";
import { IRewardHandler } from "../interfaces/balancer/IRewardHandler.sol";
import { IVirtualRewards } from "../interfaces/IVirtualRewards.sol";
import { AuraBalStrategyBase } from "./StrategyBase.sol";

/**
 * @title   AuraBalStrategy
 * @author  llama.airforce -> AuraFinance
 * @notice  Changes:
 *          - remove option to lock auraBAL instead of swapping it
 *          - remove paltform fee
 */
contract AuraBalStrategy is Ownable, AuraBalStrategyBase {
    using SafeERC20 for IERC20;

    address public immutable vault;
    address[] public rewardTokens;
    mapping(address => address) public rewardHandlers;

    uint256 public constant FEE_DENOMINATOR = 10000;

    constructor(
        address _vault,
        // AuraBalStrategyBase
        address _balVault,
        address _auraBalStaking,
        address _balToken,
        address _wethToken,
        address _auraToken,
        address _auraBalToken,
        address _bbusdToken,
        bytes32 _auraBalBalETHBptPoolId,
        bytes32 _balETHPoolId
    )
        AuraBalStrategyBase(
            _balVault,
            _auraBalStaking,
            _balToken,
            _wethToken,
            _auraToken,
            _auraBalToken,
            _bbusdToken,
            _auraBalBalETHBptPoolId,
            _balETHPoolId
        )
    {
        vault = _vault;
    }

    /// @notice Set approvals for the contracts used when swapping & staking
    function setApprovals() external {
        IERC20(AURABAL_TOKEN).safeApprove(address(auraBalStaking), 0);
        IERC20(AURABAL_TOKEN).safeApprove(address(auraBalStaking), type(uint256).max);
        IERC20(BAL_TOKEN).safeApprove(address(balVault), 0);
        IERC20(BAL_TOKEN).safeApprove(address(balVault), type(uint256).max);
        IERC20(WETH_TOKEN).safeApprove(address(balVault), 0);
        IERC20(WETH_TOKEN).safeApprove(address(balVault), type(uint256).max);
        IERC20(BAL_ETH_POOL_TOKEN).safeApprove(address(balVault), 0);
        IERC20(BAL_ETH_POOL_TOKEN).safeApprove(address(balVault), type(uint256).max);
    }

    /// @notice update the token to handler mapping
    function _updateRewardToken(address _token, address _handler) internal {
        rewardHandlers[_token] = _handler;
    }

    /// @notice Add a reward token and its handler
    /// @dev For tokens that should not be swapped (i.e. BAL rewards)
    ///      use address as zero handler
    /// @param _token the reward token to add
    /// @param _handler address of the contract that will sell for BAL or ETH
    function addRewardToken(address _token, address _handler) external onlyOwner {
        rewardTokens.push(_token);
        _updateRewardToken(_token, _handler);
    }

    /// @notice Update the handler of a reward token
    /// @dev Used to update a handler or retire a token (set handler to address 0)
    /// @param _token the reward token to add
    /// @param _handler address of the contract that will sell for BAL or ETH
    function updateRewardToken(address _token, address _handler) external onlyOwner {
        _updateRewardToken(_token, _handler);
    }

    /// @notice returns the number of reward tokens
    /// @return the number of reward tokens
    function totalRewardTokens() external view returns (uint256) {
        return rewardTokens.length;
    }

    /// @notice Query the amount currently staked
    /// @return total - the total amount of tokens staked
    function totalUnderlying() public view returns (uint256 total) {
        return auraBalStaking.balanceOf(address(this));
    }

    /// @notice Deposits underlying tokens in the staking contract
    function stake(uint256 _amount) public onlyVault {
        auraBalStaking.stake(_amount);
    }

    /// @notice Withdraw a certain amount from the staking contract
    /// @param _amount - the amount to withdraw
    /// @dev Can only be called by the vault
    function withdraw(uint256 _amount) external onlyVault {
        auraBalStaking.withdraw(_amount, false);
        IERC20(AURABAL_TOKEN).safeTransfer(vault, _amount);
    }

    /// @notice Claim rewards and swaps them to FXS for restaking
    /// @dev Can be called by the vault only
    /// @param _minAmountOut -  min amount of LP tokens to receive w/o revert
    /// @return harvested - the amount harvested
    function harvest(uint256 _minAmountOut) public onlyVault returns (uint256 harvested) {
        // claim rewards
        auraBalStaking.getReward();

        // process extra rewards
        uint256 extraRewardCount = IGenericVault(vault).extraRewardsLength();
        for (uint256 i; i < extraRewardCount; ++i) {
            address rewards = IGenericVault(vault).extraRewards(i);
            address token = IVirtualRewards(rewards).rewardToken();
            uint256 balance = IERC20(token).balanceOf(address(this));
            if (balance > 0) {
                IERC20(token).safeTransfer(rewards, balance);
                IVirtualRewards(rewards).queueNewRewards(balance);
            }
        }

        // process rewards
        address[] memory _rewardTokens = rewardTokens;
        for (uint256 i; i < _rewardTokens.length; ++i) {
            address _tokenHandler = rewardHandlers[_rewardTokens[i]];
            if (_tokenHandler == address(0)) {
                continue;
            }
            uint256 _tokenBalance = IERC20(_rewardTokens[i]).balanceOf(address(this));
            if (_tokenBalance > 0) {
                IERC20(_rewardTokens[i]).safeTransfer(_tokenHandler, _tokenBalance);
                IRewardHandler(_tokenHandler).sell();
            }
        }

        uint256 _wethBalance = IERC20(WETH_TOKEN).balanceOf(address(this));
        uint256 _balBalance = IERC20(BAL_TOKEN).balanceOf(address(this));

        if (_wethBalance + _balBalance == 0) {
            return 0;
        }
        // Deposit to BLP
        _depositToBalEthPool(_balBalance, _wethBalance, 0);

        // Swap the LP tokens for aura BAL
        uint256 _bptBalance = IERC20(BAL_ETH_POOL_TOKEN).balanceOf(address(this));
        _swapBptToAuraBal(_bptBalance, _minAmountOut);

        uint256 _auraBalBalance = IERC20(AURABAL_TOKEN).balanceOf(address(this));
        if (_auraBalBalance > 0) {
            stake(_auraBalBalance);
            return _auraBalBalance;
        }

        return 0;
    }

    modifier onlyVault() {
        require(vault == msg.sender, "Vault calls only");
        _;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/Ownable.sol)

pragma solidity ^0.8.0;

import "../utils/Context.sol";

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

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        _transferOwnership(_msgSender());
    }

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

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

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

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

pragma solidity ^0.8.0;

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

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

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

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

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

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

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

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

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @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);
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.11;

interface IGenericVault {
    function withdraw(address _to, uint256 _shares) external returns (uint256 withdrawn);

    function withdrawAll(address _to) external returns (uint256 withdrawn);

    function depositAll(address _to) external returns (uint256 _shares);

    function deposit(address _to, uint256 _amount) external returns (uint256 _shares);

    function harvest() external;

    function balanceOfUnderlying(address user) external view returns (uint256 amount);

    function totalUnderlying() external view returns (uint256 total);

    function totalSupply() external view returns (uint256 total);

    function underlying() external view returns (address);

    function strategy() external view returns (address);

    function platform() external view returns (address);

    function setPlatform(address _platform) external;

    function setPlatformFee(uint256 _fee) external;

    function setCallIncentive(uint256 _incentive) external;

    function setWithdrawalPenalty(uint256 _penalty) external;

    function setApprovals() external;

    function callIncentive() external view returns (uint256);

    function withdrawalPenalty() external view returns (uint256);

    function platformFee() external view returns (uint256);

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

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

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

    function transfer(address to, uint256 value) external returns (bool);

    function transferFrom(
        address from,
        address to,
        uint256 value
    ) external returns (bool);

    function extraRewardsLength() external view returns (uint256);

    function extraRewards(uint256) external view returns (address);
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.11;

interface IRewardHandler {
    function sell() external;

    function setPendingOwner(address _po) external;

    function applyPendingOwner() external;

    function rescueToken(address _token, address _to) external;
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.11;

interface IVirtualRewardFactory {
    function createVirtualReward(
        address,
        address,
        address
    ) external returns (address);
}

interface IVirtualRewards {
    function queueNewRewards(uint256) external;

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

// SPDX-License-Identifier: MIT
pragma solidity 0.8.11;

import { IBasicRewards } from "../interfaces/IBasicRewards.sol";
import { IAsset, IBalancerVault } from "../interfaces/balancer/IBalancerCore.sol";

/**
 * @title   AuraBalStrategyBase
 * @author  llama.airforce -> AuraFinance
 * @notice  Changes:
 *          - remove BAL Depositor address
 */
contract AuraBalStrategyBase {
    address public immutable BBUSD_TOKEN;
    address public immutable AURA_TOKEN;
    address public immutable AURABAL_TOKEN;

    address public immutable WETH_TOKEN;
    address public immutable BAL_TOKEN;
    address public immutable BAL_ETH_POOL_TOKEN;

    bytes32 private immutable AURABAL_BAL_ETH_BPT_POOL_ID;
    bytes32 private immutable BAL_ETH_POOL_ID;

    IBasicRewards public immutable auraBalStaking;
    IBalancerVault public immutable balVault;

    constructor(
        address _balVault,
        address _auraBalStaking,
        // tokens
        address _balToken,
        address _wethToken,
        address _auraToken,
        address _auraBalToken,
        address _bbusdToken,
        // pools
        bytes32 _auraBalBalETHBptPoolId,
        bytes32 _balETHPoolId
    ) {
        (
            address balEthPoolToken, /* */

        ) = IBalancerVault(_balVault).getPool(_balETHPoolId);
        require(balEthPoolToken != address(0), "!balEthPoolToken");
        balVault = IBalancerVault(_balVault);
        auraBalStaking = IBasicRewards(_auraBalStaking);
        BAL_TOKEN = _balToken;
        WETH_TOKEN = _wethToken;
        AURA_TOKEN = _auraToken;
        AURABAL_TOKEN = _auraBalToken;
        BBUSD_TOKEN = _bbusdToken;
        BAL_ETH_POOL_TOKEN = balEthPoolToken;
        AURABAL_BAL_ETH_BPT_POOL_ID = _auraBalBalETHBptPoolId;
        BAL_ETH_POOL_ID = _balETHPoolId;
    }

    /// @notice Deposit BAL and WETH to the BAL-ETH pool
    /// @param _wethAmount - amount of wETH to deposit
    /// @param _balAmount - amount of BAL to deposit
    /// @param _minAmountOut - min amount of BPT expected
    function _depositToBalEthPool(
        uint256 _balAmount,
        uint256 _wethAmount,
        uint256 _minAmountOut
    ) internal {
        IAsset[] memory _assets = new IAsset[](2);
        _assets[0] = IAsset(BAL_TOKEN);
        _assets[1] = IAsset(WETH_TOKEN);

        uint256[] memory _amountsIn = new uint256[](2);
        _amountsIn[0] = _balAmount;
        _amountsIn[1] = _wethAmount;

        balVault.joinPool(
            BAL_ETH_POOL_ID,
            address(this),
            address(this),
            IBalancerVault.JoinPoolRequest(
                _assets,
                _amountsIn,
                abi.encode(IBalancerVault.JoinKind.EXACT_TOKENS_IN_FOR_BPT_OUT, _amountsIn, _minAmountOut),
                false
            )
        );
    }

    function _swapBptToAuraBal(uint256 _amount, uint256 _minAmountOut) internal returns (uint256) {
        IBalancerVault.SingleSwap memory _auraSwapParams = IBalancerVault.SingleSwap({
            poolId: AURABAL_BAL_ETH_BPT_POOL_ID,
            kind: IBalancerVault.SwapKind.GIVEN_IN,
            assetIn: IAsset(BAL_ETH_POOL_TOKEN),
            assetOut: IAsset(AURABAL_TOKEN),
            amount: _amount,
            userData: new bytes(0)
        });

        return balVault.swap(_auraSwapParams, _createSwapFunds(), _minAmountOut, block.timestamp + 1);
    }

    /// @notice Returns a FundManagement struct used for BAL swaps
    function _createSwapFunds() internal view returns (IBalancerVault.FundManagement memory) {
        return
            IBalancerVault.FundManagement({
                sender: address(this),
                fromInternalBalance: false,
                recipient: payable(address(this)),
                toInternalBalance: false
            });
    }
}

// SPDX-License-Identifier: MIT
// 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 Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}

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

pragma solidity ^0.8.0;

/**
 * @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
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize, which returns 0 for contracts in
        // construction, since the code is only stored at the end of the
        // constructor execution.

        uint256 size;
        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");

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

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

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

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

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

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

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

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

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

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

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

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

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

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

// SPDX-License-Identifier: MIT
pragma solidity 0.8.11;

interface IBasicRewards {
    function stakeFor(address, uint256) external returns (bool);

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

    function totalSupply() external view returns (uint256);

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

    function withdrawAll(bool) external returns (bool);

    function withdraw(uint256, bool) external returns (bool);

    function withdraw(address, uint256) external;

    function withdrawAndUnwrap(uint256 amount, bool claim) external returns (bool);

    function getReward() external returns (bool);

    function stake(uint256) external returns (bool);

    function stake(address, uint256) external;

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

    function exit() external returns (bool);
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.11;

import { IERC20 } from "@openzeppelin/contracts-0.8/token/ERC20/IERC20.sol";

interface IPriceOracle {
    struct OracleAverageQuery {
        Variable variable;
        uint256 secs;
        uint256 ago;
    }
    enum Variable {
        PAIR_PRICE,
        BPT_PRICE,
        INVARIANT
    }

    function getTimeWeightedAverage(OracleAverageQuery[] memory queries)
        external
        view
        returns (uint256[] memory results);
}

interface IBalancerVault {
    enum PoolSpecialization {
        GENERAL,
        MINIMAL_SWAP_INFO,
        TWO_TOKEN
    }
    enum JoinKind {
        INIT,
        EXACT_TOKENS_IN_FOR_BPT_OUT,
        TOKEN_IN_FOR_EXACT_BPT_OUT,
        ALL_TOKENS_IN_FOR_EXACT_BPT_OUT
    }

    enum SwapKind {
        GIVEN_IN,
        GIVEN_OUT
    }

    struct BatchSwapStep {
        bytes32 poolId;
        uint256 assetInIndex;
        uint256 assetOutIndex;
        uint256 amount;
        bytes userData;
    }

    function batchSwap(
        SwapKind kind,
        BatchSwapStep[] memory swaps,
        IAsset[] memory assets,
        FundManagement memory funds,
        int256[] memory limits,
        uint256 deadline
    ) external payable returns (int256[] memory);

    struct SingleSwap {
        bytes32 poolId;
        SwapKind kind;
        IAsset assetIn;
        IAsset assetOut;
        uint256 amount;
        bytes userData;
    }

    struct FundManagement {
        address sender;
        bool fromInternalBalance;
        address payable recipient;
        bool toInternalBalance;
    }

    struct JoinPoolRequest {
        IAsset[] assets;
        uint256[] maxAmountsIn;
        bytes userData;
        bool fromInternalBalance;
    }

    function getPool(bytes32 poolId) external view returns (address, PoolSpecialization);

    function getPoolTokens(bytes32 poolId)
        external
        view
        returns (
            address[] memory tokens,
            uint256[] memory balances,
            uint256 lastChangeBlock
        );

    function joinPool(
        bytes32 poolId,
        address sender,
        address recipient,
        JoinPoolRequest memory request
    ) external payable;

    function swap(
        SingleSwap memory singleSwap,
        FundManagement memory funds,
        uint256 limit,
        uint256 deadline
    ) external returns (uint256 amountCalculated);

    function exitPool(
        bytes32 poolId,
        address sender,
        address payable recipient,
        ExitPoolRequest memory request
    ) external;

    function getInternalBalance(address user, address[] memory tokens) external view returns (uint256[] memory);

    function queryBatchSwap(
        SwapKind kind,
        BatchSwapStep[] memory swaps,
        IAsset[] memory assets,
        FundManagement memory funds
    ) external returns (int256[] memory assetDeltas);

    struct ExitPoolRequest {
        IAsset[] assets;
        uint256[] minAmountsOut;
        bytes userData;
        bool toInternalBalance;
    }
    enum ExitKind {
        EXACT_BPT_IN_FOR_ONE_TOKEN_OUT,
        EXACT_BPT_IN_FOR_TOKENS_OUT,
        BPT_IN_FOR_EXACT_TOKENS_OUT,
        MANAGEMENT_FEE_TOKENS_OUT // for ManagedPool
    }
}

interface IAsset {
    // solhint-disable-previous-line no-empty-blocks
}

interface IBalancerPool {
    function getPoolId() external view returns (bytes32);

    function getNormalizedWeights() external view returns (uint256[] memory);

    function getSwapEnabled() external view returns (bool);

    function getOwner() external view returns (address);

    function totalSupply() external view returns (uint256);

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

interface ILBPFactory {
    function create(
        string memory name,
        string memory symbol,
        IERC20[] memory tokens,
        uint256[] memory weights,
        uint256 swapFeePercentage,
        address owner,
        bool swapEnabledOnStart
    ) external returns (address);
}

interface ILBP {
    function setSwapEnabled(bool swapEnabled) external;

    function updateWeightsGradually(
        uint256 startTime,
        uint256 endTime,
        uint256[] memory endWeights
    ) external;

    function getGradualWeightUpdateParams()
        external
        view
        returns (
            uint256 startTime,
            uint256 endTime,
            uint256[] memory endWeights
        );
}

interface IStablePoolFactory {
    function create(
        string memory name,
        string memory symbol,
        IERC20[] memory tokens,
        uint256 amplificationParameter,
        uint256 swapFeePercentage,
        address owner
    ) external returns (address);
}

interface IWeightedPool2TokensFactory {
    function create(
        string memory name,
        string memory symbol,
        IERC20[] memory tokens,
        uint256[] memory weights,
        uint256 swapFeePercentage,
        bool oracleEnabled,
        address owner
    ) external returns (address);
}

interface IRateProvider {
    function getRate() external view returns (uint256);
}

interface IWeightedPoolFactory {
    /**
     * @dev Deploys a new `WeightedPool`.
     */
    function create(
        string memory name,
        string memory symbol,
        IERC20[] memory tokens,
        uint256[] memory normalizedWeights,
        IRateProvider[] memory rateProviders,
        uint256 swapFeePercentage,
        address owner
    ) external returns (address);
}

{
  "metadata": {
    "bytecodeHash": "none"
  },
  "optimizer": {
    "enabled": true,
    "runs": 800
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

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-----Decoded View---------------
Arg [0] : _vault (address): 0xfAA2eD111B4F580fCb85C48E6DC6782Dc5FCD7a6
Arg [1] : _balVault (address): 0xBA12222222228d8Ba445958a75a0704d566BF2C8
Arg [2] : _auraBalStaking (address): 0x00A7BA8Ae7bca0B10A32Ea1f8e2a1Da980c6CAd2
Arg [3] : _balToken (address): 0xba100000625a3754423978a60c9317c58a424e3D
Arg [4] : _wethToken (address): 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2
Arg [5] : _auraToken (address): 0xC0c293ce456fF0ED870ADd98a0828Dd4d2903DBF
Arg [6] : _auraBalToken (address): 0x616e8BfA43F920657B3497DBf40D6b1A02D4608d
Arg [7] : _bbusdToken (address): 0xA13a9247ea42D743238089903570127DdA72fE44
Arg [8] : _auraBalBalETHBptPoolId (bytes32): 0x3dd0843a028c86e0b760b1a76929d1c5ef93a2dd000200000000000000000249
Arg [9] : _balETHPoolId (bytes32): 0x5c6ee304399dbdb9c8ef030ab642b10820db8f56000200000000000000000014

-----Encoded View---------------
10 Constructor Arguments found :
Arg [0] : 000000000000000000000000faa2ed111b4f580fcb85c48e6dc6782dc5fcd7a6
Arg [1] : 000000000000000000000000ba12222222228d8ba445958a75a0704d566bf2c8
Arg [2] : 00000000000000000000000000a7ba8ae7bca0b10a32ea1f8e2a1da980c6cad2
Arg [3] : 000000000000000000000000ba100000625a3754423978a60c9317c58a424e3d
Arg [4] : 000000000000000000000000c02aaa39b223fe8d0a0e5c4f27ead9083c756cc2
Arg [5] : 000000000000000000000000c0c293ce456ff0ed870add98a0828dd4d2903dbf
Arg [6] : 000000000000000000000000616e8bfa43f920657b3497dbf40d6b1a02d4608d
Arg [7] : 000000000000000000000000a13a9247ea42d743238089903570127dda72fe44
Arg [8] : 3dd0843a028c86e0b760b1a76929d1c5ef93a2dd000200000000000000000249
Arg [9] : 5c6ee304399dbdb9c8ef030ab642b10820db8f56000200000000000000000014