Contract 0xca5a12bfbddad76add7e4cbfb83dca3f2ca31790

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.7;

import "@openzeppelin/contracts/utils/math/SafeMath.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "./interfaces/ITaxableToken.sol";
// import "./interfaces/IUniswapV2Router.sol";
import "./interfaces/IUniswapV2Router.sol";
import "./libs/TransferHelper.sol";




interface IWETH {
    function deposit() external payable;
    function transfer(address to, uint value) external returns (bool);
    function withdraw(uint) external;
    function balanceOf(address account) external view returns (uint256);
}




contract TaxOfficeV2 is Ownable {

    using SafeERC20 for IERC20;
    using SafeMath for uint256;

    address public coffin;
    address public wftm = address(0x21be370D5312f44cB42ce377BC9b8a0cEF1A4C83);
    address public spookyUniRouter = address(0xF491e7B69E4244ad4002BC14e878a34207E38c29);
    address public spiritUniRouter = address(0x16327E3FbDaCA3bcF7E38F5Af2599D2DDc33aE52);
    address public uniRouter = address(0xF491e7B69E4244ad4002BC14e878a34207E38c29);
    
    receive() external payable {}

    // mapping(address => bool) public taxExclusionEnabled;

    function setCoffin(address _coffin) external onlyOwner {
        require(_coffin!=address(0), "coffin address error ");
        coffin = _coffin;
    }

    function setUniRouter(address _uniRouter) external onlyOwner {
        require(_uniRouter!=address(0), "coffin address error ");
        uniRouter = _uniRouter;
    }
    

    function enableAutoCalculateTax() public onlyOwner {
        ITaxableToken(coffin).enableAutoCalculateTax();
    }

    function disableAutoCalculateTax() public onlyOwner {
        ITaxableToken(coffin).disableAutoCalculateTax();
    }

    function setTaxThreshold(uint256 _taxThreshold)
        public
        onlyOwner
    {
        ITaxableToken(coffin).setTaxThreshold(_taxThreshold);
    }

    function setBurnThreshold(uint256 _burnThreshold)
        public
        onlyOwner
    {
        ITaxableToken(coffin).setBurnThreshold(_burnThreshold);
    }

    function setBasisTaxRate(uint16 _val) public onlyOwner {
        ITaxableToken(coffin).setBasisTaxRate(_val);
    }

    function setTaxCollectorAddress(
        address _taxCollectorAddress
    ) public onlyOwner {
        ITaxableToken(coffin).setTaxCollectorAddress(_taxCollectorAddress);
    }

    function excludeAddressFromTax(address _address)
        external
        onlyOwner
        returns (bool)
    {
        // return ITaxableToken(coffin).excludeAddressFromTax(_address);
        return _excludeAddressFromTax(_address);
    }

    function _excludeAddressFromTax(address _address) private returns (bool) {
        if (!ITaxableToken(coffin).isExcluded(_address)) {
            // update 
            return ITaxableToken(coffin).excludeAddressFromTax(_address);
        }
        return false; // already 
    }
    function includeAddressInTax(address _address)
        external
        onlyOwner
        returns (bool)
    {
        // return ITaxableToken(coffin).includeAddressInTax(_address);
        return _includeAddressInTax(_address);
    }
    function _includeAddressInTax(address _address) private returns (bool) {
        if (ITaxableToken(coffin).isExcluded(_address)) {
            return ITaxableToken(coffin).includeAddressInTax(_address);
        }
        return false; // already
    }

    function isExcluded(address _address)
        public
        view
        returns (bool)
    {
        return ITaxableToken(coffin).isExcluded(_address);
    }


    function taxRate() external view returns (uint16) {
        return ITaxableToken(coffin).latestTaxRate();
    }

    function enableTwap() public onlyOwner {
        ITaxableToken(coffin).enableTwap();
    }

    function disablTwap() public onlyOwner {
        ITaxableToken(coffin).disablTwap();
    }

    function enableTax() public onlyOwner {
        ITaxableToken(coffin).enableTax();
    }

    function disableTax() public onlyOwner {
        ITaxableToken(coffin).disableTax();
    }

    function setCoffinOracle(address _coffinOracle)
        external
        onlyOwner
    {
        ITaxableToken(coffin).setCoffinOracle(_coffinOracle);
    }

    function transferTaxOffice(address _newTaxOffice)
        external
        onlyOwner
    {
        ITaxableToken(coffin).setTaxOffice(_newTaxOffice);
    }

    function setAdjustTaxRateA(uint32 _adjustTaxRate)
        external
        onlyOwner
    {
        ITaxableToken(coffin).setAdjustTaxRateA(_adjustTaxRate);
    }
    function setAdjustTaxRateB(uint32 _adjustTaxRate)
        external
        onlyOwner
    {
        ITaxableToken(coffin).setAdjustTaxRateB(_adjustTaxRate);
    }

    function setStaticTaxRate(uint16 _staticTaxRate)
        external
        onlyOwner
    {
        ITaxableToken(coffin).setStaticTaxRate(_staticTaxRate);
    }

    function setMaxTaxRate(uint16 _maxTaxRate)
        external
        onlyOwner
    {
        ITaxableToken(coffin).setMaxTaxRate(_maxTaxRate);
    }

    function rescueFund(IERC20 _token, address _to) external onlyOwner {
        if (IERC20(_token).balanceOf(address(this))>0) {
            IERC20(_token).safeTransfer(
                _to,
                IERC20(_token).balanceOf(address(this))
            );
        }
    }
    function rescueETH() external onlyOwner{
        if( address(this).balance>0) {
            payable(msg.sender).transfer(address(this).balance);
        }
    }
    
    function addLiquidityTaxFreeSpookySwap(
        address token,
        uint256 amtCoffin,
        uint256 amtToken,
        uint256 amtCoffinMin,
        uint256 amtTokenMin,
        uint256 deadline
    )
        external
        returns (
            uint256,
            uint256,
            uint256
        )
    {
        require(amtCoffin != 0 && amtToken != 0, "amounts can't be 0");
        // _excludeAddressFromTax(msg.sender);

        IERC20(coffin).safeTransferFrom(msg.sender, address(this), amtCoffin);
        IERC20(token).safeTransferFrom(msg.sender, address(this), amtToken);
        // IERC20(coffin).transferFrom(msg.sender, address(this), amtCoffin);
        // IERC20(token).transferFrom(msg.sender, address(this), amtToken);
        _approveTokenIfNeeded(coffin, spookyUniRouter);
        _approveTokenIfNeeded(token, spookyUniRouter);

        // _includeAddressInTax(msg.sender);

        uint256 resultAmtCoffin;
        uint256 resultAmtToken;
        uint256 liquidity;
        
        amtCoffin = IERC20(coffin).balanceOf(address(this));

        (resultAmtCoffin, resultAmtToken, liquidity) = IUniswapV2Router(spookyUniRouter).addLiquidity(
            coffin,
            token,
            amtCoffin,
            amtToken,
            amtCoffinMin,
            amtTokenMin,
            msg.sender,
            deadline // block.timestamp
        );

        if(amtCoffin.sub(resultAmtCoffin) > 0) {
            // IERC20(coffin).transfer(msg.sender, amtCoffin.sub(resultAmtCoffin));
            IERC20(coffin).safeTransfer(msg.sender, amtCoffin.sub(resultAmtCoffin));
        }
        if(amtToken.sub(resultAmtToken) > 0) {
            IERC20(token).safeTransfer(msg.sender, amtToken.sub(resultAmtToken));
        }
        return (resultAmtCoffin, resultAmtToken, liquidity);
    }

    function addLiquidityTaxFreeSpiritSwap(
        address token,
        uint256 amtCoffin,
        uint256 amtToken,
        uint256 amtCoffinMin,
        uint256 amtTokenMin,
        uint256 deadline
    )
        external
        returns (
            uint256,
            uint256,
            uint256
        )
    {
        require(amtCoffin != 0 && amtToken != 0, "amounts can't be 0");
        // _excludeAddressFromTax(msg.sender);


        IERC20(coffin).safeTransferFrom(msg.sender, address(this), amtCoffin);
        IERC20(token).safeTransferFrom(msg.sender, address(this), amtToken);
        // IERC20(coffin).transferFrom(msg.sender, address(this), amtCoffin);
        // IERC20(token).transferFrom(msg.sender, address(this), amtToken);
        _approveTokenIfNeeded(coffin, spiritUniRouter);
        _approveTokenIfNeeded(token, spiritUniRouter);

        // _includeAddressInTax(msg.sender);

        uint256 resultAmtCoffin;
        uint256 resultAmtToken;
        uint256 liquidity;
        
        amtCoffin = IERC20(coffin).balanceOf(address(this));

        (resultAmtCoffin, resultAmtToken, liquidity) = IUniswapV2Router(spiritUniRouter).addLiquidity(
            coffin,
            token,
            amtCoffin,
            amtToken,
            amtCoffinMin,
            amtTokenMin,
            msg.sender,
            deadline // block.timestamp
        );

        if(amtCoffin.sub(resultAmtCoffin) > 0) {
            IERC20(coffin).safeTransfer(msg.sender, amtCoffin.sub(resultAmtCoffin));
            // IERC20(coffin).transfer(msg.sender, amtCoffin.sub(resultAmtCoffin));
        }
        if(amtToken.sub(resultAmtToken) > 0) {
            IERC20(token).safeTransfer(msg.sender, amtToken.sub(resultAmtToken));
            // IERC20(token).transfer(msg.sender, amtToken.sub(resultAmtToken));
        }
        return (resultAmtCoffin, resultAmtToken, liquidity);
    }


    function addLiquidityTaxFree(
        address token,
        uint256 amtCoffin,
        uint256 amtToken,
        uint256 amtCoffinMin,
        uint256 amtTokenMin,
        uint256 deadline
    )
        external
        returns (
            uint256,
            uint256,
            uint256
        )
    {
        require(amtCoffin != 0 && amtToken != 0, "amounts can't be 0");
        // _excludeAddressFromTax(msg.sender);

        IERC20(coffin).transferFrom(msg.sender, address(this), amtCoffin);
        IERC20(token).transferFrom(msg.sender, address(this), amtToken);
        _approveTokenIfNeeded(coffin, uniRouter);
        _approveTokenIfNeeded(token, uniRouter);

        // _includeAddressInTax(msg.sender);

        uint256 resultAmtCoffin;
        uint256 resultAmtToken;
        uint256 liquidity;
        
        amtCoffin = IERC20(coffin).balanceOf(address(this));

        (resultAmtCoffin, resultAmtToken, liquidity) = IUniswapV2Router(uniRouter).addLiquidity(
            coffin,
            token,
            amtCoffin,
            amtToken,
            amtCoffinMin,
            amtTokenMin,
            msg.sender,
            deadline // block.timestamp
        );

        if(amtCoffin.sub(resultAmtCoffin) > 0) {
            IERC20(coffin).safeTransfer(msg.sender, amtCoffin.sub(resultAmtCoffin));
            // IERC20(coffin).transfer(msg.sender, amtCoffin.sub(resultAmtCoffin));
        }
        if(amtToken.sub(resultAmtToken) > 0) {
            IERC20(token).safeTransfer(msg.sender, amtToken.sub(resultAmtToken));
            // IERC20(token).transfer(msg.sender, amtToken.sub(resultAmtToken));
        }
        return (resultAmtCoffin, resultAmtToken, liquidity);
    }


    function addLiquidityETHTaxFreeSpookySwap(
        uint256 amtCoffin,
        uint256 amtCoffinMin,
        uint256 amtFtmMin,
        uint256 deadline
    )
        external
        payable
        returns (
            uint256,
            uint256,
            uint256
        )
    {
        require(amtCoffin != 0 && msg.value != 0, "amounts can't be 0");
        // _excludeAddressFromTax(msg.sender);

        // IERC20(coffin).transferFrom(msg.sender, address(this), amtCoffin);
        IERC20(coffin).safeTransferFrom(msg.sender, address(this), amtCoffin);
        _approveTokenIfNeeded(coffin, spookyUniRouter);

        // _includeAddressInTax(msg.sender);

        uint256 resultAmtCoffin;
        uint256 resultAmtFtm;
        uint256 liquidity;
        //     
        
        amtCoffin = IERC20(coffin).balanceOf(address(this));

        (resultAmtCoffin, resultAmtFtm, liquidity) 
            = IUniswapV2Router(spookyUniRouter).addLiquidityETH{value: msg.value}(
            coffin,
            amtCoffin,
            amtCoffinMin,
            amtFtmMin,
            msg.sender,
            deadline // block.timestamp
        );

        if(amtCoffin.sub(resultAmtCoffin) > 0) {
            IERC20(coffin).safeTransfer(msg.sender, amtCoffin.sub(resultAmtCoffin));
            // IERC20(coffin).transfer(msg.sender, amtCoffin.sub(resultAmtCoffin));
        }

        if(msg.value > resultAmtFtm ) {
            TransferHelper.safeTransferETH(msg.sender, msg.value - resultAmtFtm);
            // payable(msg.sender).transfer(msg.value.sub(resultAmtFtm));
        }
        return (resultAmtCoffin, resultAmtFtm, liquidity);
    }
    function addLiquidityETHTaxFreeSpiritSwap(
        uint256 amtCoffin,
        uint256 amtCoffinMin,
        uint256 amtFtmMin,
        uint256 deadline
    )
        external
        payable
        returns (
            uint256,
            uint256,
            uint256
        )
    {
        require(amtCoffin != 0 && msg.value != 0, "amounts can't be 0");
        // _excludeAddressFromTax(msg.sender);

        // IERC20(coffin).transferFrom(msg.sender, address(this), amtCoffin);
        IERC20(coffin).safeTransferFrom(msg.sender, address(this), amtCoffin);
        _approveTokenIfNeeded(coffin, spiritUniRouter);

        // _includeAddressInTax(msg.sender);

        uint256 resultAmtCoffin;
        uint256 resultAmtFtm;
        uint256 liquidity;

        amtCoffin = IERC20(coffin).balanceOf(address(this));

        (resultAmtCoffin, resultAmtFtm, liquidity) 
            = IUniswapV2Router(spiritUniRouter).addLiquidityETH{value: msg.value}(
            coffin,
            amtCoffin,
            amtCoffinMin,
            amtFtmMin,
            msg.sender,
            deadline // block.timestamp
        );

        if(amtCoffin.sub(resultAmtCoffin) > 0) {
            IERC20(coffin).safeTransfer(msg.sender, amtCoffin.sub(resultAmtCoffin));
            // IERC20(coffin).transfer(msg.sender, amtCoffin.sub(resultAmtCoffin));
        }

        if(msg.value.sub(resultAmtFtm) > 0) {
            TransferHelper.safeTransferETH(msg.sender, msg.value - resultAmtFtm);
            // payable(msg.sender).transfer(msg.value.sub(resultAmtFtm));
        }
        return (resultAmtCoffin, resultAmtFtm, liquidity);
    }

    function addLiquidityETHTaxFree(
        uint256 amtCoffin,
        uint256 amtCoffinMin,
        uint256 amtFtmMin,
        uint256 deadline
    )
        external
        payable
        returns (
            uint256,
            uint256,
            uint256
        )
    {
        require(amtCoffin != 0 && msg.value != 0, "amounts can't be 0");
        // _excludeAddressFromTax(msg.sender);

        // IERC20(coffin).transferFrom(msg.sender, address(this), amtCoffin);
        IERC20(coffin).safeTransferFrom(msg.sender, address(this), amtCoffin);
        _approveTokenIfNeeded(coffin, uniRouter);

        // _includeAddressInTax(msg.sender);

        uint256 resultAmtCoffin;
        uint256 resultAmtFtm;
        uint256 liquidity;
        
        amtCoffin = IERC20(coffin).balanceOf(address(this));

        (resultAmtCoffin, resultAmtFtm, liquidity) = IUniswapV2Router(uniRouter).addLiquidityETH{value: msg.value}(
            coffin,
            amtCoffin,
            amtCoffinMin,
            amtFtmMin,
            msg.sender,
            deadline // block.timestamp
        );

        if(amtCoffin.sub(resultAmtCoffin) > 0) {
            IERC20(coffin).safeTransfer(msg.sender, amtCoffin.sub(resultAmtCoffin));
            // IERC20(coffin).transfer(msg.sender, amtCoffin.sub(resultAmtCoffin));
        }
        if(msg.value.sub(resultAmtFtm) > 0) {
            TransferHelper.safeTransferETH(msg.sender, msg.value - resultAmtFtm);
            // payable(msg.sender).transfer(msg.value.sub(resultAmtFtm));
        }
        return (resultAmtCoffin, resultAmtFtm, liquidity);
    }


    function _approveTokenIfNeeded(address _token, address _router) private {
        if (IERC20(_token).allowance(address(this), _router) == 0) {
            IERC20(_token).approve(_router, type(uint256).max);
        }
    }

}

// SPDX-License-Identifier: MIT

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 no longer needed starting with Solidity 0.8. 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 substraction 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 ^0.8.0;

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() {
        _setOwner(_msgSender());
    }

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

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

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

    function _setOwner(address newOwner) private {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

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

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

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

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

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

    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "./IERC20.sol";
import "./extensions/IERC20Metadata.sol";
import "../../utils/Context.sol";

/**
 * @dev Implementation of the {IERC20} interface.
 *
 * This implementation is agnostic to the way tokens are created. This means
 * that a supply mechanism has to be added in a derived contract using {_mint}.
 * For a generic mechanism see {ERC20PresetMinterPauser}.
 *
 * TIP: For a detailed writeup see our guide
 * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * We have followed general OpenZeppelin guidelines: functions revert instead
 * of returning `false` on failure. This behavior is nonetheless conventional
 * and does not conflict with the expectations of ERC20 applications.
 *
 * Additionally, an {Approval} event is emitted on calls to {transferFrom}.
 * This allows applications to reconstruct the allowance for all accounts just
 * by listening to said events. Other implementations of the EIP may not emit
 * these events, as it isn't required by the specification.
 *
 * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
 * functions have been added to mitigate the well-known issues around setting
 * allowances. See {IERC20-approve}.
 */
contract ERC20 is Context, IERC20, IERC20Metadata {
    mapping(address => uint256) private _balances;

    mapping(address => mapping(address => uint256)) private _allowances;

    uint256 private _totalSupply;

    string private _name;
    string private _symbol;

    /**
     * @dev Sets the values for {name} and {symbol}.
     *
     * The default value of {decimals} is 18. To select a different value for
     * {decimals} you should overload it.
     *
     * All two of these values are immutable: they can only be set once during
     * construction.
     */
    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }

    /**
     * @dev Returns the name of the token.
     */
    function name() public view virtual override returns (string memory) {
        return _name;
    }

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }

    /**
     * @dev Returns the number of decimals used to get its user representation.
     * For example, if `decimals` equals `2`, a balance of `505` tokens should
     * be displayed to a user as `5,05` (`505 / 10 ** 2`).
     *
     * Tokens usually opt for a value of 18, imitating the relationship between
     * Ether and Wei. This is the value {ERC20} uses, unless this function is
     * overridden;
     *
     * NOTE: This information is only used for _display_ purposes: it in
     * no way affects any of the arithmetic of the contract, including
     * {IERC20-balanceOf} and {IERC20-transfer}.
     */
    function decimals() public view virtual override returns (uint8) {
        return 18;
    }

    /**
     * @dev See {IERC20-totalSupply}.
     */
    function totalSupply() public view virtual override returns (uint256) {
        return _totalSupply;
    }

    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view virtual override returns (uint256) {
        return _balances[account];
    }

    /**
     * @dev See {IERC20-transfer}.
     *
     * Requirements:
     *
     * - `recipient` cannot be the zero address.
     * - the caller must have a balance of at least `amount`.
     */
    function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
        _transfer(_msgSender(), recipient, amount);
        return true;
    }

    /**
     * @dev See {IERC20-allowance}.
     */
    function allowance(address owner, address spender) public view virtual override returns (uint256) {
        return _allowances[owner][spender];
    }

    /**
     * @dev See {IERC20-approve}.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 amount) public virtual override returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }

    /**
     * @dev See {IERC20-transferFrom}.
     *
     * Emits an {Approval} event indicating the updated allowance. This is not
     * required by the EIP. See the note at the beginning of {ERC20}.
     *
     * Requirements:
     *
     * - `sender` and `recipient` cannot be the zero address.
     * - `sender` must have a balance of at least `amount`.
     * - the caller must have allowance for ``sender``'s tokens of at least
     * `amount`.
     */
    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) public virtual override returns (bool) {
        _transfer(sender, recipient, amount);

        uint256 currentAllowance = _allowances[sender][_msgSender()];
        require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
        unchecked {
            _approve(sender, _msgSender(), currentAllowance - amount);
        }

        return true;
    }

    /**
     * @dev Atomically increases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
        return true;
    }

    /**
     * @dev Atomically decreases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `spender` must have allowance for the caller of at least
     * `subtractedValue`.
     */
    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
        uint256 currentAllowance = _allowances[_msgSender()][spender];
        require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
        unchecked {
            _approve(_msgSender(), spender, currentAllowance - subtractedValue);
        }

        return true;
    }

    /**
     * @dev Moves `amount` of tokens from `sender` to `recipient`.
     *
     * This internal function is equivalent to {transfer}, and can be used to
     * e.g. implement automatic token fees, slashing mechanisms, etc.
     *
     * Emits a {Transfer} event.
     *
     * Requirements:
     *
     * - `sender` cannot be the zero address.
     * - `recipient` cannot be the zero address.
     * - `sender` must have a balance of at least `amount`.
     */
    function _transfer(
        address sender,
        address recipient,
        uint256 amount
    ) internal virtual {
        require(sender != address(0), "ERC20: transfer from the zero address");
        require(recipient != address(0), "ERC20: transfer to the zero address");

        _beforeTokenTransfer(sender, recipient, amount);

        uint256 senderBalance = _balances[sender];
        require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
        unchecked {
            _balances[sender] = senderBalance - amount;
        }
        _balances[recipient] += amount;

        emit Transfer(sender, recipient, amount);

        _afterTokenTransfer(sender, recipient, amount);
    }

    /** @dev Creates `amount` tokens and assigns them to `account`, increasing
     * the total supply.
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     */
    function _mint(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: mint to the zero address");

        _beforeTokenTransfer(address(0), account, amount);

        _totalSupply += amount;
        _balances[account] += amount;
        emit Transfer(address(0), account, amount);

        _afterTokenTransfer(address(0), account, amount);
    }

    /**
     * @dev Destroys `amount` tokens from `account`, reducing the
     * total supply.
     *
     * Emits a {Transfer} event with `to` set to the zero address.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     * - `account` must have at least `amount` tokens.
     */
    function _burn(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: burn from the zero address");

        _beforeTokenTransfer(account, address(0), amount);

        uint256 accountBalance = _balances[account];
        require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
        unchecked {
            _balances[account] = accountBalance - amount;
        }
        _totalSupply -= amount;

        emit Transfer(account, address(0), amount);

        _afterTokenTransfer(account, address(0), amount);
    }

    /**
     * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
     *
     * This internal function is equivalent to `approve`, and can be used to
     * e.g. set automatic allowances for certain subsystems, etc.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `owner` cannot be the zero address.
     * - `spender` cannot be the zero address.
     */
    function _approve(
        address owner,
        address spender,
        uint256 amount
    ) internal virtual {
        require(owner != address(0), "ERC20: approve from the zero address");
        require(spender != address(0), "ERC20: approve to the zero address");

        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

    /**
     * @dev Hook that is called before any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * will be transferred to `to`.
     * - when `from` is zero, `amount` tokens will be minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens will be burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(
        address from,
        address to,
        uint256 amount
    ) internal virtual {}

    /**
     * @dev Hook that is called after any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * has been transferred to `to`.
     * - when `from` is zero, `amount` tokens have been minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens have been burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _afterTokenTransfer(
        address from,
        address to,
        uint256 amount
    ) internal virtual {}
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

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

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

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

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

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

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

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

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

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

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.7;
interface ITaxableToken {
    function enableTax() external;

    function disableTax() external;

    function enableAutoCalculateTax() external;

    function disableAutoCalculateTax() external;

    function setTaxCollectorAddress(address _taxCollectorAddress) external;

    function setTaxThreshold(uint256 _taxThreshold) external;

    function setBurnThreshold(uint256 _burnThreshold) external;

    function setBasisTaxRate(uint16 _val) external;

    function enableTwap() external;
    
    function disablTwap() external ;

    function includeAddressInTax(address _address) external returns (bool);

    function excludeAddressFromTax(address _address) external returns (bool);

    function isExcluded(address _address) external view returns (bool);

    function setCoffinOracle(address _coffinOracle) external;

    function setStaticTaxRate(uint16 _staticTaxRate) external;

    function setTaxOffice(address _taxOffice) external;

    function setAdjustTaxRateA(uint32 _adjustTaxRate) external;
    function setAdjustTaxRateB(uint32 _adjustTaxRate) external;

    function setMaxTaxRate(uint16 _maxTaxRate) external;
    function latestTaxRate() view external returns(uint16);

}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.7;

interface IUniswapV2Router {
    function factory() external pure returns (address);

    function WETH() external pure returns (address);

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

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

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

    function removeLiquidityETH(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external returns (uint amountToken, uint amountETH);

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

    function removeLiquidityETHWithPermit(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline,
        bool approveMax, uint8 v, bytes32 r, bytes32 s
    ) external returns (uint amountToken, uint amountETH);

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

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

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

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

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

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

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

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

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

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

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

    function removeLiquidityETHSupportingFeeOnTransferTokens(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external returns (uint amountETH);

    function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline,
        bool approveMax, uint8 v, bytes32 r, bytes32 s
    ) external returns (uint amountETH);

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

    function swapExactETHForTokensSupportingFeeOnTransferTokens(
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external payable;

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

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.7;

// helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false
library TransferHelper {
    function safeApprove(address token, address to, uint value) internal {
        // bytes4(keccak256(bytes('approve(address,uint256)')));
        (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value));
        require(success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper: APPROVE_FAILED');
    }

    function safeTransfer(address token, address to, uint value) internal {
        // bytes4(keccak256(bytes('transfer(address,uint256)')));
        (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value));
        require(success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper: TRANSFER_FAILED');
    }

    function safeTransferFrom(address token, address from, address to, uint value) internal {
        // bytes4(keccak256(bytes('transferFrom(address,address,uint256)')));
        (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value));
        require(success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper: TRANSFER_FROM_FAILED');
    }

    function safeTransferETH(address to, uint value) internal {
        (bool success,) = to.call{value:value}(new bytes(0));
        require(success, 'TransferHelper: ETH_TRANSFER_FAILED');
    }
}

// SPDX-License-Identifier: MIT

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

pragma solidity ^0.8.0;

import "../IERC20.sol";

/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 *
 * _Available since v4.1._
 */
interface IERC20Metadata is IERC20 {
    /**
     * @dev Returns the name of the token.
     */
    function name() external view returns (string memory);

    /**
     * @dev Returns the symbol of the token.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the decimals places of the token.
     */
    function decimals() external view returns (uint8);
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

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

        uint256 size;
        assembly {
            size := extcodesize(account)
        }
        return size > 0;
    }

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

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

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

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

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

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

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

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

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

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

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

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

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

    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

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

{
  "optimizer": {
    "enabled": true,
    "runs": 500
  },
  "metadata": {
    "bytecodeHash": "none",
    "useLiteralContent": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"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":"uint256","name":"amtCoffin","type":"uint256"},{"internalType":"uint256","name":"amtCoffinMin","type":"uint256"},{"internalType":"uint256","name":"amtFtmMin","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"addLiquidityETHTaxFree","outputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amtCoffin","type":"uint256"},{"internalType":"uint256","name":"amtCoffinMin","type":"uint256"},{"internalType":"uint256","name":"amtFtmMin","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"addLiquidityETHTaxFreeSpiritSwap","outputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amtCoffin","type":"uint256"},{"internalType":"uint256","name":"amtCoffinMin","type":"uint256"},{"internalType":"uint256","name":"amtFtmMin","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"addLiquidityETHTaxFreeSpookySwap","outputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"amtCoffin","type":"uint256"},{"internalType":"uint256","name":"amtToken","type":"uint256"},{"internalType":"uint256","name":"amtCoffinMin","type":"uint256"},{"internalType":"uint256","name":"amtTokenMin","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"addLiquidityTaxFree","outputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"amtCoffin","type":"uint256"},{"internalType":"uint256","name":"amtToken","type":"uint256"},{"internalType":"uint256","name":"amtCoffinMin","type":"uint256"},{"internalType":"uint256","name":"amtTokenMin","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"addLiquidityTaxFreeSpiritSwap","outputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"amtCoffin","type":"uint256"},{"internalType":"uint256","name":"amtToken","type":"uint256"},{"internalType":"uint256","name":"amtCoffinMin","type":"uint256"},{"internalType":"uint256","name":"amtTokenMin","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"name":"addLiquidityTaxFreeSpookySwap","outputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"coffin","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"disablTwap","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"disableAutoCalculateTax","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"disableTax","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"enableAutoCalculateTax","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"enableTax","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"enableTwap","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_address","type":"address"}],"name":"excludeAddressFromTax","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_address","type":"address"}],"name":"includeAddressInTax","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_address","type":"address"}],"name":"isExcluded","outputs":[{"internalType":"bool","name":"","type":"bool"}],"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":[],"name":"rescueETH","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract IERC20","name":"_token","type":"address"},{"internalType":"address","name":"_to","type":"address"}],"name":"rescueFund","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint32","name":"_adjustTaxRate","type":"uint32"}],"name":"setAdjustTaxRateA","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint32","name":"_adjustTaxRate","type":"uint32"}],"name":"setAdjustTaxRateB","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint16","name":"_val","type":"uint16"}],"name":"setBasisTaxRate","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_burnThreshold","type":"uint256"}],"name":"setBurnThreshold","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_coffin","type":"address"}],"name":"setCoffin","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_coffinOracle","type":"address"}],"name":"setCoffinOracle","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint16","name":"_maxTaxRate","type":"uint16"}],"name":"setMaxTaxRate","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint16","name":"_staticTaxRate","type":"uint16"}],"name":"setStaticTaxRate","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_taxCollectorAddress","type":"address"}],"name":"setTaxCollectorAddress","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_taxThreshold","type":"uint256"}],"name":"setTaxThreshold","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_uniRouter","type":"address"}],"name":"setUniRouter","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"spiritUniRouter","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"spookyUniRouter","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"taxRate","outputs":[{"internalType":"uint16","name":"","type":"uint16"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_newTaxOffice","type":"address"}],"name":"transferTaxOffice","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"uniRouter","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"wftm","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"stateMutability":"payable","type":"receive"}]

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