Contract 0x63535e8cA0F0E19dEB3aEC5D209636391b28bBa5

// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.7.4;
pragma experimental ABIEncoderV2;

import "@openzeppelin/contracts/math/SafeMath.sol";
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/token/ERC20/SafeERC20.sol";

import "../interfaces/IHandler.sol";
import "../libraries/PercentageMath.sol";

enum SwapKind {
    GIVEN_IN,
    GIVEN_OUT
}

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

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

struct Order {
    address recipient;
    address inputToken;
    address outputToken;
    uint256 inputAmount;
    uint256 minReturnAmount;
    uint256 stoplossAmount;
    uint256 shares;
}

/// @notice Balancer Handler used to execute an order
contract BalancerHandler is IHandler {
    using SafeMath for uint256;
    using SafeERC20 for IERC20;
    using PercentageMath for uint256;

    IVault public immutable vault;
    address public immutable symphony;

    /**
     * @notice Creates the handler
     */
    constructor(IVault _vault, address _symphony) {
        vault = _vault;
        symphony = _symphony;
    }

    modifier onlySymphony() {
        require(
            msg.sender == symphony,
            "BalancerHandler: Only symphony contract can invoke this function"
        );
        _;
    }

    /// @notice receive MATIC
    receive() external payable override {}

    /**
     * @notice Handle an order execution
     */
    function handle(
        IOrderStructs.Order memory order,
        uint256 oracleAmount,
        uint256 feePercent,
        uint256 protcolFeePercent,
        address executor,
        address treasury,
        bytes calldata handlerdata
    ) external override onlySymphony {
        IERC20(order.inputToken).safeApprove(address(vault), order.inputAmount);

        // Swap Tokens
        uint256 returnAmount = _swap(handlerdata);

        require(
            IERC20(order.outputToken).balanceOf(address(this)) >= returnAmount,
            "BalancerHandler: Incorrect output token recieved !!"
        );

        require(
            returnAmount >= order.minReturnAmount ||
                returnAmount <= order.stoplossAmount,
            "BalancerHandler: Order condition doesn't satisfy !!"
        );

        require(
            returnAmount >= oracleAmount,
            "BalancerHandler: Oracle amount doesn't match with return amount !!"
        );

        _transferTokens(
            order.outputToken,
            returnAmount, // Output amount received
            order.recipient,
            executor,
            treasury,
            feePercent,
            protcolFeePercent
        );
    }

    function simulate(
        address _inputToken,
        address _outputToken,
        uint256 _inputAmount,
        uint256 _minReturnAmount,
        uint256 _stoplossAmount,
        uint256 _oracleAmount,
        bytes calldata
    ) external view override returns (bool success, uint256 bought) {}

    /**
     * @notice Swap input token to output token
     */
    function _swap(bytes calldata _data) internal returns (uint256 bought) {
        (
            IAsset[] memory assets,
            BatchSwapStep[] memory swapSteps
        ) = _decodeData(_data);

        FundManagement memory funds = FundManagement(
            address(this),
            false,
            address(this),
            false
        );

        bought = _multiSwap(assets, swapSteps, funds);
    }

    function _multiSwap(
        IAsset[] memory assets,
        BatchSwapStep[] memory swapSteps,
        FundManagement memory funds
    ) internal returns (uint256 bought) {
        int256[] memory limits = new int256[](assets.length);
        for (uint256 i = 0; i < limits.length; i++) {
            limits[i] = type(int256).max;
        }

        int256[] memory assetDeltas = IVault(vault).batchSwap(
            SwapKind.GIVEN_IN,
            swapSteps,
            assets,
            funds,
            limits,
            block.timestamp.add(1800)
        );

        bought = uint256(-assetDeltas[assetDeltas.length - 1]);
    }

    function _transferTokens(
        address token,
        uint256 amount,
        address recipient,
        address executor,
        address treasury,
        uint256 feePercent,
        uint256 protcolFeePercent
    ) internal {
        uint256 protocolFee;
        uint256 totalFee = amount.percentMul(feePercent);

        IERC20(token).safeTransfer(recipient, amount.sub(totalFee));

        if (treasury != address(0)) {
            protocolFee = totalFee.percentMul(protcolFeePercent);
            IERC20(token).safeTransfer(treasury, protocolFee);
        }

        IERC20(token).safeTransfer(executor, totalFee.sub(protocolFee));
    }

    function _decodeData(bytes memory _data)
        internal
        view
        returns (IAsset[] memory assets, BatchSwapStep[] memory swapSteps)
    {
        (assets, swapSteps) = abi.decode(_data, (IAsset[], BatchSwapStep[]));
    }
}

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

interface IVault {
    function batchSwap(
        SwapKind kind,
        BatchSwapStep[] memory swaps,
        IAsset[] memory assets,
        FundManagement memory funds,
        int256[] memory limits,
        uint256 deadline
    ) external returns (int256[] memory assetDeltas);
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/**
 * @dev Wrappers over Solidity's arithmetic operations with added overflow
 * checks.
 *
 * Arithmetic operations in Solidity wrap on overflow. This can easily result
 * in bugs, because programmers usually assume that an overflow raises an
 * error, which is the standard behavior in high level programming languages.
 * `SafeMath` restores this intuition by reverting the transaction when an
 * operation overflows.
 *
 * Using this library instead of the unchecked operations eliminates an entire
 * class of bugs, so it's recommended to use it always.
 */
library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        uint256 c = a + b;
        if (c < a) return (false, 0);
        return (true, c);
    }

    /**
     * @dev Returns the substraction of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b > a) return (false, 0);
        return (true, a - b);
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
        if (a == 0) return (true, 0);
        uint256 c = a * b;
        if (c / a != b) return (false, 0);
        return (true, c);
    }

    /**
     * @dev Returns the division of two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b == 0) return (false, 0);
        return (true, a / b);
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b == 0) return (false, 0);
        return (true, a % b);
    }

    /**
     * @dev Returns the addition of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     *
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");
        return c;
    }

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

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     *
     * - Multiplication cannot overflow.
     */
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        if (a == 0) return 0;
        uint256 c = a * b;
        require(c / a == b, "SafeMath: multiplication overflow");
        return c;
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b > 0, "SafeMath: division by zero");
        return a / b;
    }

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

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {trySub}.
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        return a - b;
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting with custom message on
     * division by zero. The result is rounded towards zero.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryDiv}.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        return a / b;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting with custom message when dividing by zero.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryMod}.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        return a % b;
    }
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <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 >=0.6.0 <0.8.0;

import "./IERC20.sol";
import "../../math/SafeMath.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 SafeMath for uint256;
    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'
        // solhint-disable-next-line max-line-length
        require((value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

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

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

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function _callOptionalReturn(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
            // solhint-disable-next-line max-line-length
            require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
        }
    }
}

// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.7.4;
pragma experimental ABIEncoderV2;

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "./IOrderStructs.sol";

interface IHandler {
    /// @notice receive ETH
    receive() external payable;

    /**
     * @notice Handle an order execution
     * @param _order - Order structure
     * @param _oracleAmount - Current out amount from oracle
     * @param _feePercent - uint256 total execution fee percent
     * @param _protocolFeePercent - uint256 protocol fee percent
     * @param _executor - Address of the order executor
     * @param _treasury - Address of the protocol treasury
     * @param _data - Bytes of arbitrary data
     */
    function handle(
        IOrderStructs.Order memory _order,
        uint256 _oracleAmount,
        uint256 _feePercent,
        uint256 _protocolFeePercent,
        address _executor,
        address _treasury,
        bytes calldata _data
    ) external;

    /**
     * @notice Simulate an order execution
     * @param _inputToken - Address of the input token
     * @param _outputToken - Address of the output token
     * @param _inputAmount - uint256 of the input token amount
     * @param _minReturnAmount - uint256 minimum return output token
     * @param _stoplossAmount - uint256 stoploss amount
     * @param _oracleAmount - Current out amount from oracle
     * @param _data - Bytes of arbitrary data
     * @return success - Whether the execution can be handled or not
     * @return amountOut - Amount of output token bought
     */
    function simulate(
        address _inputToken,
        address _outputToken,
        uint256 _inputAmount,
        uint256 _minReturnAmount,
        uint256 _stoplossAmount,
        uint256 _oracleAmount,
        bytes calldata _data
    ) external view returns (bool success, uint256 amountOut);
}

// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.7.4;

/**
 * @title PercentageMath library
 * @author Aave
 * @notice Provides functions to perform percentage calculations
 * @dev Percentages are defined by default with 2 decimals of precision (100.00). The precision is indicated by PERCENTAGE_FACTOR
 * @dev Operations are rounded half up
 **/

library PercentageMath {
    uint256 constant PERCENTAGE_FACTOR = 1e4; //percentage plus two decimals
    uint256 constant HALF_PERCENT = PERCENTAGE_FACTOR / 2;

    /**
     * @dev Executes a percentage multiplication
     * @param value The value of which the percentage needs to be calculated
     * @param percentage The percentage of the value to be calculated
     * @return The percentage of value
     **/
    function percentMul(uint256 value, uint256 percentage)
        internal
        pure
        returns (uint256)
    {
        if (value == 0 || percentage == 0) {
            return 0;
        }

        require(
            value <= (type(uint256).max - HALF_PERCENT) / percentage,
            "PercentageMath: MATH_MULTIPLICATION_OVERFLOW"
        );

        return (value * percentage + HALF_PERCENT) / PERCENTAGE_FACTOR;
    }

    /**
     * @dev Executes a percentage division
     * @param value The value of which the percentage needs to be calculated
     * @param percentage The percentage of the value to be calculated
     * @return The value divided the percentage
     **/
    function percentDiv(uint256 value, uint256 percentage)
        internal
        pure
        returns (uint256)
    {
        require(percentage != 0, "PercentageMath: MATH_DIVISION_BY_ZERO");
        uint256 halfPercentage = percentage / 2;

        require(
            value <= (type(uint256).max - halfPercentage) / PERCENTAGE_FACTOR,
            "PercentageMath: MATH_MULTIPLICATION_OVERFLOW"
        );

        return (value * PERCENTAGE_FACTOR + halfPercentage) / percentage;
    }
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.2 <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;
        // solhint-disable-next-line no-inline-assembly
        assembly { size := extcodesize(account) }
        return size > 0;
    }

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

        // solhint-disable-next-line avoid-low-level-calls, avoid-call-value
        (bool success, ) = recipient.call{ value: amount }("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

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

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

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

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

        // solhint-disable-next-line avoid-low-level-calls
        (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");

        // solhint-disable-next-line avoid-low-level-calls
        (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");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }

    function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private 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

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

// SPDX-License-Identifier: agpl-3.0
pragma solidity 0.7.4;
pragma experimental ABIEncoderV2;

interface IOrderStructs {
    // This is not really an interface - it just defines common structs.

    struct Order {
        address recipient;
        address inputToken;
        address outputToken;
        uint256 inputAmount;
        uint256 minReturnAmount;
        uint256 stoplossAmount;
        uint256 shares;
    }
}

{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "abi"
      ]
    }
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"contract IVault","name":"_vault","type":"address"},{"internalType":"address","name":"_symphony","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"components":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"address","name":"inputToken","type":"address"},{"internalType":"address","name":"outputToken","type":"address"},{"internalType":"uint256","name":"inputAmount","type":"uint256"},{"internalType":"uint256","name":"minReturnAmount","type":"uint256"},{"internalType":"uint256","name":"stoplossAmount","type":"uint256"},{"internalType":"uint256","name":"shares","type":"uint256"}],"internalType":"struct IOrderStructs.Order","name":"order","type":"tuple"},{"internalType":"uint256","name":"oracleAmount","type":"uint256"},{"internalType":"uint256","name":"feePercent","type":"uint256"},{"internalType":"uint256","name":"protcolFeePercent","type":"uint256"},{"internalType":"address","name":"executor","type":"address"},{"internalType":"address","name":"treasury","type":"address"},{"internalType":"bytes","name":"handlerdata","type":"bytes"}],"name":"handle","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_inputToken","type":"address"},{"internalType":"address","name":"_outputToken","type":"address"},{"internalType":"uint256","name":"_inputAmount","type":"uint256"},{"internalType":"uint256","name":"_minReturnAmount","type":"uint256"},{"internalType":"uint256","name":"_stoplossAmount","type":"uint256"},{"internalType":"uint256","name":"_oracleAmount","type":"uint256"},{"internalType":"bytes","name":"","type":"bytes"}],"name":"simulate","outputs":[{"internalType":"bool","name":"success","type":"bool"},{"internalType":"uint256","name":"bought","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symphony","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"vault","outputs":[{"internalType":"contract IVault","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"stateMutability":"payable","type":"receive"}]

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

000000000000000000000000ba12222222228d8ba445958a75a0704d566bf2c8000000000000000000000000a9938c13f2c446c7decd9d9ebee6db8100ca4157

-----Decoded View---------------
Arg [0] : _vault (address): 0xba12222222228d8ba445958a75a0704d566bf2c8
Arg [1] : _symphony (address): 0xa9938c13f2c446c7decd9d9ebee6db8100ca4157

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 000000000000000000000000ba12222222228d8ba445958a75a0704d566bf2c8
Arg [1] : 000000000000000000000000a9938c13f2c446c7decd9d9ebee6db8100ca4157