Contract 0x82aeaf4cFCB329a4979CdCE51AbD5030c0F8fAc0

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (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 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 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/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);
}

// SPDX-License-Identifier: MIT
// 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);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";
import "../extensions/draft-IERC20Permit.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));
        }
    }

    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");
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (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 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);
        }
    }
}

// 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 (last updated v4.6.0) (utils/math/SafeMath.sol)

pragma solidity ^0.8.0;

// CAUTION
// This version of SafeMath should only be used with Solidity 0.8 or later,
// because it relies on the compiler's built in overflow checks.

/**
 * @dev Wrappers over Solidity's arithmetic operations.
 *
 * NOTE: `SafeMath` is generally not needed starting with Solidity 0.8, since the compiler
 * now has built in overflow checking.
 */
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) {
        unchecked {
            uint256 c = a + b;
            if (c < a) return (false, 0);
            return (true, c);
        }
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            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) {
        unchecked {
            // 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) {
        unchecked {
            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) {
        unchecked {
            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) {
        return a + b;
    }

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

    /**
     * @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.
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        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) {
        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) {
        unchecked {
            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.
     *
     * 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) {
        unchecked {
            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) {
        unchecked {
            require(b > 0, errorMessage);
            return a % b;
        }
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

interface IJoeRouter01 {
  function factory() external pure returns (address);

  function WAVAX() external pure returns (address);

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

  function addLiquidityAVAX(
    address token,
    uint256 amountTokenDesired,
    uint256 amountTokenMin,
    uint256 amountAVAXMin,
    address to,
    uint256 deadline
  )
    external
    payable
    returns (uint256 amountToken, uint256 amountAVAX, uint256 liquidity);

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

  function removeLiquidityAVAX(
    address token,
    uint256 liquidity,
    uint256 amountTokenMin,
    uint256 amountAVAXMin,
    address to,
    uint256 deadline
  ) external returns (uint256 amountToken, uint256 amountAVAX);

  function removeLiquidityWithPermit(
    address tokenA,
    address tokenB,
    uint256 liquidity,
    uint256 amountAMin,
    uint256 amountBMin,
    address to,
    uint256 deadline,
    bool approveMax,
    uint8 v,
    bytes32 r,
    bytes32 s
  ) external returns (uint256 amountA, uint256 amountB);

  function removeLiquidityAVAXWithPermit(
    address token,
    uint256 liquidity,
    uint256 amountTokenMin,
    uint256 amountAVAXMin,
    address to,
    uint256 deadline,
    bool approveMax,
    uint8 v,
    bytes32 r,
    bytes32 s
  ) external returns (uint256 amountToken, uint256 amountAVAX);

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

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

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

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

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

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

  function quote(
    uint256 amountA,
    uint256 reserveA,
    uint256 reserveB
  ) external pure returns (uint256 amountB);

  function getAmountOut(
    uint256 amountIn,
    uint256 reserveIn,
    uint256 reserveOut
  ) external pure returns (uint256 amountOut);

  function getAmountIn(
    uint256 amountOut,
    uint256 reserveIn,
    uint256 reserveOut
  ) external pure returns (uint256 amountIn);

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

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

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

import "./IJoeRouter01.sol";

interface IJoeRouter02 is IJoeRouter01 {
  function removeLiquidityAVAXSupportingFeeOnTransferTokens(
    address token,
    uint256 liquidity,
    uint256 amountTokenMin,
    uint256 amountAVAXMin,
    address to,
    uint256 deadline
  ) external returns (uint256 amountAVAX);

  function removeLiquidityAVAXWithPermitSupportingFeeOnTransferTokens(
    address token,
    uint256 liquidity,
    uint256 amountTokenMin,
    uint256 amountAVAXMin,
    address to,
    uint256 deadline,
    bool approveMax,
    uint8 v,
    bytes32 r,
    bytes32 s
  ) external returns (uint256 amountAVAX);

  function swapExactTokensForTokensSupportingFeeOnTransferTokens(
    uint256 amountIn,
    uint256 amountOutMin,
    address[] calldata path,
    address to,
    uint256 deadline
  ) external;

  function swapExactAVAXForTokensSupportingFeeOnTransferTokens(
    uint256 amountOutMin,
    address[] calldata path,
    address to,
    uint256 deadline
  ) external payable;

  function swapExactTokensForAVAXSupportingFeeOnTransferTokens(
    uint256 amountIn,
    uint256 amountOutMin,
    address[] calldata path,
    address to,
    uint256 deadline
  ) external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

interface IRaiderZapper {
  function zapIn(
    address _to,
    address routerAddr,
    address _recipient
  ) external payable;

  function swapFromNative(
    address _to,
    address _recipient,
    address routerAddr
  ) external payable;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

interface IUniswapV2Pair {
  event Approval(address indexed owner, address indexed spender, uint256 value);
  event Transfer(address indexed from, address indexed to, uint256 value);

  function name() external pure returns (string memory);

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

  function decimals() external pure returns (uint8);

  function totalSupply() 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 DOMAIN_SEPARATOR() external view returns (bytes32);

  function PERMIT_TYPEHASH() external pure returns (bytes32);

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

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

  event Mint(address indexed sender, uint256 amount0, uint256 amount1);
  event Burn(
    address indexed sender,
    uint256 amount0,
    uint256 amount1,
    address indexed to
  );
  event Swap(
    address indexed sender,
    uint256 amount0In,
    uint256 amount1In,
    uint256 amount0Out,
    uint256 amount1Out,
    address indexed to
  );
  event Sync(uint112 reserve0, uint112 reserve1);

  function MINIMUM_LIQUIDITY() external pure returns (uint256);

  function factory() external view returns (address);

  function token0() external view returns (address);

  function token1() external view returns (address);

  function getReserves()
    external
    view
    returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);

  function price0CumulativeLast() external view returns (uint256);

  function price1CumulativeLast() external view returns (uint256);

  function kLast() external view returns (uint256);

  function mint(address to) external returns (uint256 liquidity);

  function burn(address to) external returns (uint256 amount0, uint256 amount1);

  function swap(
    uint256 amount0Out,
    uint256 amount1Out,
    address to,
    bytes calldata data
  ) external;

  function skim(address to) external;

  function sync() external;

  function initialize(address, address) external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "@openzeppelin/contracts/utils/math/SafeMath.sol";
import "@openzeppelin/contracts/access/Ownable.sol";

import "./interfaces/IJoeRouter02.sol";
import "./interfaces/IUniswapV2Pair.sol";
import "./interfaces/IRaiderZapper.sol";

/**
 * @dev Used to quickly enter LPs.
 */
contract RaiderZapperAVAX is Ownable, IRaiderZapper {
  using SafeMath for uint256;
  using SafeERC20 for IERC20;

  /* ========== STATE VARIABLES ========== */

  address private WNATIVE;
  mapping(address => mapping(address => address)) private tokenBridgeForRouter;

  event FeeChange(address fee_to, uint16 rate, uint16 min);

  constructor(address _WNATIVE) Ownable() {
    WNATIVE = _WNATIVE;
  }

  /* ========== External Functions ========== */

  receive() external payable {}

  function zapInToken(
    address _from,
    uint256 amount,
    address _to,
    address routerAddr,
    address _recipient
  ) external {
    // From an ERC20 to an LP token, through specified router, going through base asset if necessary
    IERC20(_from).safeTransferFrom(msg.sender, address(this), amount);

    // approve token to be spent by router
    IERC20(_from).safeApprove(routerAddr, type(uint256).max);

    // we'll need this approval to add liquidity
    _swapTokenToLP(_from, amount, _to, _recipient, routerAddr);
  }

  function estimateZapInToken(
    address _from,
    address _to,
    address _router,
    uint256 _amt
  ) public view returns (uint256, uint256) {
    // get pairs for desired lp
    if (
      _from == IUniswapV2Pair(_to).token0() ||
      _from == IUniswapV2Pair(_to).token1()
    ) {
      // check if we already have one of the assets
      // if so, we're going to sell half of _from for the other token we need
      // figure out which token we need, and approve
      address other = _from == IUniswapV2Pair(_to).token0()
        ? IUniswapV2Pair(_to).token1()
        : IUniswapV2Pair(_to).token0();
      // calculate amount of _from to sell
      uint256 sellAmount = _amt.div(2);
      // execute swap
      uint256 otherAmount = _estimateSwap(_from, sellAmount, other, _router);
      if (_from == IUniswapV2Pair(_to).token0()) {
        return (sellAmount, otherAmount);
      } else {
        return (otherAmount, sellAmount);
      }
    } else {
      // go through native token for highest liquidity
      uint256 nativeAmount = _from == WNATIVE
        ? _amt
        : _estimateSwap(_from, _amt, WNATIVE, _router);
      return estimateZapIn(_to, _router, nativeAmount);
    }
  }

  function zapIn(
    address _to,
    address routerAddr,
    address _recipient
  ) external payable override {
    // from Native to an LP token through the specified router
    _swapNativeToLP(_to, msg.value, _recipient, routerAddr);
  }

  // WIP TODO @cstoneham
  function zapOutToken(
    address _from,
    uint256 amount,
    address _to,
    address routerAddr,
    address _recipient
  ) external {
    IERC20(_from).safeTransferFrom(msg.sender, address(this), amount);
    IUniswapV2Pair pair = IUniswapV2Pair(_from);

    address token0 = pair.token0();
    address token1 = pair.token1();

    // TODO @cstoneham - refactor this somewhere else
    pair.approve(routerAddr, type(uint256).max);
    // remove from LP
    (uint256 token0Amount, uint256 token1Amount) = IJoeRouter02(routerAddr)
      .removeLiquidity(
        token0,
        token1,
        amount,
        0,
        0,
        address(this),
        block.timestamp
      );

    if (token0 != _to) {
      IERC20(token0).approve(routerAddr, token0Amount);
      _swap(token0, token0Amount, _to, _recipient, routerAddr);
    } else {
      IERC20(token0).safeTransfer(_recipient, token0Amount);
    }

    if (token1 != _to) {
      IERC20(token1).approve(routerAddr, token1Amount);
      _swap(token1, token1Amount, _to, _recipient, routerAddr);
    } else {
      IERC20(token1).safeTransfer(_recipient, token1Amount);
    }
  }

  function estimateZapIn(
    address _LP,
    address _router,
    uint256 _amt
  ) public view returns (uint256, uint256) {
    uint256 zapAmt = _amt.div(2);

    IUniswapV2Pair pair = IUniswapV2Pair(_LP);
    address token0 = pair.token0();
    address token1 = pair.token1();

    if (token0 == WNATIVE || token1 == WNATIVE) {
      address token = token0 == WNATIVE ? token1 : token0;
      uint256 tokenAmt = _estimateSwap(WNATIVE, zapAmt, token, _router);
      if (token0 == WNATIVE) {
        return (zapAmt, tokenAmt);
      } else {
        return (tokenAmt, zapAmt);
      }
    } else {
      uint256 token0Amt = _estimateSwap(WNATIVE, zapAmt, token0, _router);
      uint256 token1Amt = _estimateSwap(WNATIVE, zapAmt, token1, _router);

      return (token0Amt, token1Amt);
    }
  }

  function zapAcross(
    address _from,
    uint256 amount,
    address _toRouter,
    address _recipient
  ) external {
    IERC20(_from).safeTransferFrom(msg.sender, address(this), amount);

    IUniswapV2Pair pair = IUniswapV2Pair(_from);

    IERC20(_from).safeTransfer(_from, amount);
    uint256 amt0;
    uint256 amt1;
    (amt0, amt1) = pair.burn(address(this));
    IJoeRouter02(_toRouter).addLiquidity(
      pair.token0(),
      pair.token1(),
      amt0,
      amt1,
      0,
      0,
      _recipient,
      block.timestamp
    );
  }

  function swapToken(
    address _from,
    uint256 amount,
    address _to,
    address routerAddr,
    address _recipient
  ) external {
    IERC20(_from).safeTransferFrom(msg.sender, address(this), amount);
    _swap(_from, amount, _to, _recipient, routerAddr);
  }

  function swapFromNative(
    address _to,
    address _recipient,
    address routerAddr
  ) external payable override {
    address[] memory path = new address[](2);
    path[0] = WNATIVE;
    path[1] = _to;

    IJoeRouter02(routerAddr).swapExactAVAXForTokens{ value: msg.value }(
      0,
      path,
      _recipient,
      block.timestamp
    );
  }

  function swapToNative(
    address _from,
    uint256 amount,
    address routerAddr,
    address _recipient
  ) external {
    IERC20(_from).safeTransferFrom(msg.sender, address(this), amount);
    _swapTokenForNative(_from, amount, _recipient, routerAddr);
  }

  /* ========== Private Functions ========== */

  function approveNewInputToken(
    address token,
    address router
  ) external onlyOwner {
    if (IERC20(token).allowance(address(this), router) == 0) {
      IERC20(token).safeApprove(router, type(uint256).max);
    }
  }

  function _swapTokenToLP(
    address _from,
    uint256 amount,
    address _to,
    address recipient,
    address routerAddr
  ) private returns (uint256) {
    // get pairs for desired lp
    if (
      _from == IUniswapV2Pair(_to).token0() ||
      _from == IUniswapV2Pair(_to).token1()
    ) {
      // check if we already have one of the assets
      // if so, we're going to sell half of _from for the other token we need
      // figure out which token we need, and approve
      address other = _from == IUniswapV2Pair(_to).token0()
        ? IUniswapV2Pair(_to).token1()
        : IUniswapV2Pair(_to).token0();
      // calculate amount of _from to sell
      uint256 sellAmount = amount.div(2);
      // execute swap
      uint256 otherAmount = _swap(
        _from,
        sellAmount,
        other,
        address(this),
        routerAddr
      );
      uint256 liquidity;
      (, , liquidity) = IJoeRouter02(routerAddr).addLiquidity(
        _from,
        other,
        amount.sub(sellAmount),
        otherAmount,
        0,
        0,
        recipient,
        block.timestamp
      );
      return liquidity;
    } else {
      // go through native token for highest liquidity
      uint256 nativeAmount = _swapTokenForNative(
        _from,
        amount,
        address(this),
        routerAddr
      );
      return _swapNativeToLP(_to, nativeAmount, recipient, routerAddr);
    }
  }

  function _swapNativeToLP(
    address _LP,
    uint256 amount,
    address recipient,
    address routerAddress
  ) private returns (uint256) {
    // LP
    IUniswapV2Pair pair = IUniswapV2Pair(_LP);
    address token0 = pair.token0();
    address token1 = pair.token1();
    uint256 liquidity;
    if (token0 == WNATIVE || token1 == WNATIVE) {
      address token = token0 == WNATIVE ? token1 : token0;
      (, , liquidity) = _swapHalfNativeAndProvide(
        token,
        amount,
        routerAddress,
        recipient
      );
    } else {
      (, , liquidity) = _swapNativeToEqualTokensAndProvide(
        token0,
        token1,
        amount,
        routerAddress,
        recipient
      );
    }
    return liquidity;
  }

  function _swapHalfNativeAndProvide(
    address token,
    uint256 amount,
    address routerAddress,
    address recipient
  ) private returns (uint256, uint256, uint256) {
    uint256 swapValue = amount.div(2);
    uint256 tokenAmount = _swapNativeForToken(
      token,
      swapValue,
      address(this),
      routerAddress
    );

    IJoeRouter02 router = IJoeRouter02(routerAddress);
    // TODO @cstoneham - move this into an approvals function
    IERC20(token).approve(routerAddress, type(uint256).max);
    return
      router.addLiquidityAVAX{ value: amount.sub(swapValue) }(
        token,
        tokenAmount,
        0,
        0,
        recipient,
        block.timestamp
      );
  }

  function _swapNativeToEqualTokensAndProvide(
    address token0,
    address token1,
    uint256 amount,
    address routerAddress,
    address recipient
  ) private returns (uint256, uint256, uint256) {
    uint256 swapValue = amount.div(2);
    uint256 token0Amount = _swapNativeForToken(
      token0,
      swapValue,
      address(this),
      routerAddress
    );
    uint256 token1Amount = _swapNativeForToken(
      token1,
      amount.sub(swapValue),
      address(this),
      routerAddress
    );
    IJoeRouter02 router = IJoeRouter02(routerAddress);
    return
      router.addLiquidity(
        token0,
        token1,
        token0Amount,
        token1Amount,
        0,
        0,
        recipient,
        block.timestamp
      );
  }

  function _swapNativeForToken(
    address token,
    uint256 value,
    address recipient,
    address routerAddr
  ) private returns (uint256) {
    address[] memory path;
    IJoeRouter02 router = IJoeRouter02(routerAddr);

    if (tokenBridgeForRouter[token][routerAddr] != address(0)) {
      path = new address[](3);
      path[0] = WNATIVE;
      path[1] = tokenBridgeForRouter[token][routerAddr];
      path[2] = token;
    } else {
      path = new address[](2);
      path[0] = WNATIVE;
      path[1] = token;
    }

    // uint256[] memory amounts = router.swapExactAVAXForTokens{ value: value }(
    uint256[] memory amounts = router.swapExactAVAXForTokens{ value: value }(
      0,
      path,
      recipient,
      block.timestamp
    );
    return amounts[amounts.length - 1];
  }

  function _swapTokenForNative(
    address token,
    uint256 amount,
    address recipient,
    address routerAddr
  ) private returns (uint256) {
    address[] memory path;
    IJoeRouter02 router = IJoeRouter02(routerAddr);

    if (tokenBridgeForRouter[token][routerAddr] != address(0)) {
      path = new address[](3);
      path[0] = token;
      path[1] = tokenBridgeForRouter[token][routerAddr];
      path[2] = WNATIVE;
      // path[2] = router.WAVAX();
    } else {
      path = new address[](2);
      path[0] = token;
      path[1] = WNATIVE;
    }

    uint256[] memory amounts = router.swapExactTokensForAVAX(
      amount,
      0,
      path,
      recipient,
      block.timestamp
    );
    return amounts[amounts.length - 1];
  }

  function _swap(
    address _from,
    uint256 amount,
    address _to,
    address recipient,
    address routerAddr
  ) private returns (uint256) {
    IJoeRouter02 router = IJoeRouter02(routerAddr);

    address fromBridge = tokenBridgeForRouter[_from][routerAddr];
    address toBridge = tokenBridgeForRouter[_to][routerAddr];

    address[] memory path;

    if (fromBridge != address(0) && toBridge != address(0)) {
      if (fromBridge != toBridge) {
        path = new address[](5);
        path[0] = _from;
        path[1] = fromBridge;
        path[2] = WNATIVE;
        path[3] = toBridge;
        path[4] = _to;
      } else {
        path = new address[](3);
        path[0] = _from;
        path[1] = fromBridge;
        path[2] = _to;
      }
    } else if (fromBridge != address(0)) {
      if (_to == WNATIVE) {
        path = new address[](3);
        path[0] = _from;
        path[1] = fromBridge;
        path[2] = WNATIVE;
      } else {
        path = new address[](4);
        path[0] = _from;
        path[1] = fromBridge;
        path[2] = WNATIVE;
        path[3] = _to;
      }
    } else if (toBridge != address(0)) {
      path = new address[](4);
      path[0] = _from;
      path[1] = WNATIVE;
      path[2] = toBridge;
      path[3] = _to;
    } else if (_from == WNATIVE || _to == WNATIVE) {
      path = new address[](2);
      path[0] = _from;
      path[1] = _to;
    } else {
      // Go through WNative
      path = new address[](3);
      path[0] = _from;
      path[1] = WNATIVE;
      path[2] = _to;
    }

    uint256[] memory amounts = router.swapExactTokensForTokens(
      amount,
      0,
      path,
      recipient,
      block.timestamp
    );
    return amounts[amounts.length - 1];
  }

  function _estimateSwap(
    address _from,
    uint256 amount,
    address _to,
    address routerAddr
  ) private view returns (uint256) {
    IJoeRouter02 router = IJoeRouter02(routerAddr);

    address fromBridge = tokenBridgeForRouter[_from][routerAddr];
    address toBridge = tokenBridgeForRouter[_to][routerAddr];

    address[] memory path;

    if (fromBridge != address(0) && toBridge != address(0)) {
      if (fromBridge != toBridge) {
        path = new address[](5);
        path[0] = _from;
        path[1] = fromBridge;
        path[2] = WNATIVE;
        path[3] = toBridge;
        path[4] = _to;
      } else {
        path = new address[](3);
        path[0] = _from;
        path[1] = fromBridge;
        path[2] = _to;
      }
    } else if (fromBridge != address(0)) {
      if (_to == WNATIVE) {
        path = new address[](3);
        path[0] = _from;
        path[1] = fromBridge;
        path[2] = WNATIVE;
      } else {
        path = new address[](4);
        path[0] = _from;
        path[1] = fromBridge;
        path[2] = WNATIVE;
        path[3] = _to;
      }
    } else if (toBridge != address(0)) {
      path = new address[](4);
      path[0] = _from;
      path[1] = WNATIVE;
      path[2] = toBridge;
      path[3] = _to;
    } else if (_from == WNATIVE || _to == WNATIVE) {
      path = new address[](2);
      path[0] = _from;
      path[1] = _to;
    } else {
      // Go through WNative
      path = new address[](3);
      path[0] = _from;
      path[1] = WNATIVE;
      path[2] = _to;
    }

    uint256[] memory amounts = router.getAmountsOut(amount, path);
    return amounts[amounts.length - 1];
  }

  /* ========== RESTRICTED FUNCTIONS ========== */

  function setTokenBridgeForRouter(
    address token,
    address router,
    address bridgeToken
  ) external onlyOwner {
    tokenBridgeForRouter[token][router] = bridgeToken;
  }

  function withdraw(address token) external onlyOwner {
    if (token == address(0)) {
      payable(owner()).transfer(address(this).balance);
      return;
    }

    IERC20(token).transfer(owner(), IERC20(token).balanceOf(address(this)));
  }
}

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

[{"inputs":[{"internalType":"address","name":"_WNATIVE","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"fee_to","type":"address"},{"indexed":false,"internalType":"uint16","name":"rate","type":"uint16"},{"indexed":false,"internalType":"uint16","name":"min","type":"uint16"}],"name":"FeeChange","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"address","name":"router","type":"address"}],"name":"approveNewInputToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_LP","type":"address"},{"internalType":"address","name":"_router","type":"address"},{"internalType":"uint256","name":"_amt","type":"uint256"}],"name":"estimateZapIn","outputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_from","type":"address"},{"internalType":"address","name":"_to","type":"address"},{"internalType":"address","name":"_router","type":"address"},{"internalType":"uint256","name":"_amt","type":"uint256"}],"name":"estimateZapInToken","outputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"address","name":"router","type":"address"},{"internalType":"address","name":"bridgeToken","type":"address"}],"name":"setTokenBridgeForRouter","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_to","type":"address"},{"internalType":"address","name":"_recipient","type":"address"},{"internalType":"address","name":"routerAddr","type":"address"}],"name":"swapFromNative","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"_from","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"address","name":"routerAddr","type":"address"},{"internalType":"address","name":"_recipient","type":"address"}],"name":"swapToNative","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_from","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"address","name":"_to","type":"address"},{"internalType":"address","name":"routerAddr","type":"address"},{"internalType":"address","name":"_recipient","type":"address"}],"name":"swapToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_from","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"address","name":"_toRouter","type":"address"},{"internalType":"address","name":"_recipient","type":"address"}],"name":"zapAcross","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_to","type":"address"},{"internalType":"address","name":"routerAddr","type":"address"},{"internalType":"address","name":"_recipient","type":"address"}],"name":"zapIn","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"_from","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"address","name":"_to","type":"address"},{"internalType":"address","name":"routerAddr","type":"address"},{"internalType":"address","name":"_recipient","type":"address"}],"name":"zapInToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_from","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"address","name":"_to","type":"address"},{"internalType":"address","name":"routerAddr","type":"address"},{"internalType":"address","name":"_recipient","type":"address"}],"name":"zapOutToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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000000000000000000000000b31f66aa3c1e785363f0875a1b74e27b85fd66c7

-----Decoded View---------------
Arg [0] : _WNATIVE (address): 0xb31f66aa3c1e785363f0875a1b74e27b85fd66c7

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 000000000000000000000000b31f66aa3c1e785363f0875a1b74e27b85fd66c7