0x3eb6ff20572128503022d55ee8f3c6603a22e47c

//SPDX-License-Identifier: MIT
pragma solidity 0.8.27;

/**
 * @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 value of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

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

    /**
     * @dev Moves a `value` amount of 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 value) 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 a `value` amount of tokens 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 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the
     * allowance mechanism. `value` 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 value) external returns (bool);
}

/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 */
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);
}

/**
 * @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;
    }

    function _contextSuffixLength() internal view virtual returns (uint256) {
        return 0;
    }
}

/**
 * @dev Standard ERC20 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC20 tokens.
 */
interface IERC20Errors {
    /**
     * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     * @param balance Current balance for the interacting account.
     * @param needed Minimum amount required to perform a transfer.
     */
    error ERC20InsufficientBalance(address sender, uint256 balance, uint256 needed);

    /**
     * @dev Indicates a failure with the token `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     */
    error ERC20InvalidSender(address sender);

    /**
     * @dev Indicates a failure with the token `receiver`. Used in transfers.
     * @param receiver Address to which tokens are being transferred.
     */
    error ERC20InvalidReceiver(address receiver);

    /**
     * @dev Indicates a failure with the `spender`’s `allowance`. Used in transfers.
     * @param spender Address that may be allowed to operate on tokens without being their owner.
     * @param allowance Amount of tokens a `spender` is allowed to operate with.
     * @param needed Minimum amount required to perform a transfer.
     */
    error ERC20InsufficientAllowance(address spender, uint256 allowance, uint256 needed);

    /**
     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
     * @param approver Address initiating an approval operation.
     */
    error ERC20InvalidApprover(address approver);

    /**
     * @dev Indicates a failure with the `spender` to be approved. Used in approvals.
     * @param spender Address that may be allowed to operate on tokens without being their owner.
     */
    error ERC20InvalidSpender(address spender);
}

/**
 * @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}.
 *
 * The default value of {decimals} is 18. To change this, you should override
 * this function so it returns a different value.
 *
 * We have followed general OpenZeppelin Contracts guidelines: functions revert
 * instead 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.
 */
abstract contract ERC20 is Context, IERC20, IERC20Metadata, IERC20Errors {
    mapping(address account => uint256) private _balances;

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

    uint256 private _totalSupply;

    string private _name;
    string private _symbol;

    /**
     * @dev Sets the values for {name} and {symbol}.
     *
     * 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 returns (string memory) {
        return _name;
    }

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public view virtual 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 default value returned by this function, unless
     * it's 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 returns (uint8) {
        return 18;
    }

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

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

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

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

    /**
     * @dev See {IERC20-approve}.
     *
     * NOTE: If `value` is the maximum `uint256`, the allowance is not updated on
     * `transferFrom`. This is semantically equivalent to an infinite approval.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 value) public virtual returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, value);
        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}.
     *
     * NOTE: Does not update the allowance if the current allowance
     * is the maximum `uint256`.
     *
     * Requirements:
     *
     * - `from` and `to` cannot be the zero address.
     * - `from` must have a balance of at least `value`.
     * - the caller must have allowance for ``from``'s tokens of at least
     * `value`.
     */
    function transferFrom(address from, address to, uint256 value) public virtual returns (bool) {
        address spender = _msgSender();
        _spendAllowance(from, spender, value);
        _transfer(from, to, value);
        return true;
    }

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to`.
     *
     * 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.
     *
     * NOTE: This function is not virtual, {_update} should be overridden instead.
     */
    function _transfer(address from, address to, uint256 value) internal {
        if (from == address(0)) {
            revert ERC20InvalidSender(address(0));
        }
        if (to == address(0)) {
            revert ERC20InvalidReceiver(address(0));
        }
        _update(from, to, value);
    }

    /**
     * @dev Transfers a `value` amount of tokens from `from` to `to`, or alternatively mints (or burns) if `from`
     * (or `to`) is the zero address. All customizations to transfers, mints, and burns should be done by overriding
     * this function.
     *
     * Emits a {Transfer} event.
     */
    function _update(address from, address to, uint256 value) internal virtual {
        if (from == address(0)) {
            // Overflow check required: The rest of the code assumes that totalSupply never overflows
            _totalSupply += value;
        } else {
            uint256 fromBalance = _balances[from];
            if (fromBalance < value) {
                revert ERC20InsufficientBalance(from, fromBalance, value);
            }
            unchecked {
                // Overflow not possible: value <= fromBalance <= totalSupply.
                _balances[from] = fromBalance - value;
            }
        }

        if (to == address(0)) {
            unchecked {
                // Overflow not possible: value <= totalSupply or value <= fromBalance <= totalSupply.
                _totalSupply -= value;
            }
        } else {
            unchecked {
                // Overflow not possible: balance + value is at most totalSupply, which we know fits into a uint256.
                _balances[to] += value;
            }
        }

        emit Transfer(from, to, value);
    }

    /**
     * @dev Creates a `value` amount of tokens and assigns them to `account`, by transferring it from address(0).
     * Relies on the `_update` mechanism
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * NOTE: This function is not virtual, {_update} should be overridden instead.
     */
    function _mint(address account, uint256 value) internal {
        if (account == address(0)) {
            revert ERC20InvalidReceiver(address(0));
        }
        _update(address(0), account, value);
    }

    /**
     * @dev Destroys a `value` amount of tokens from `account`, lowering the total supply.
     * Relies on the `_update` mechanism.
     *
     * Emits a {Transfer} event with `to` set to the zero address.
     *
     * NOTE: This function is not virtual, {_update} should be overridden instead
     */
    function _burn(address account, uint256 value) internal {
        if (account == address(0)) {
            revert ERC20InvalidSender(address(0));
        }
        _update(account, address(0), value);
    }

    /**
     * @dev Sets `value` 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.
     *
     * Overrides to this logic should be done to the variant with an additional `bool emitEvent` argument.
     */
    function _approve(address owner, address spender, uint256 value) internal {
        _approve(owner, spender, value, true);
    }

    /**
     * @dev Variant of {_approve} with an optional flag to enable or disable the {Approval} event.
     *
     * By default (when calling {_approve}) the flag is set to true. On the other hand, approval changes made by
     * `_spendAllowance` during the `transferFrom` operation set the flag to false. This saves gas by not emitting any
     * `Approval` event during `transferFrom` operations.
     *
     * Anyone who wishes to continue emitting `Approval` events on the`transferFrom` operation can force the flag to
     * true using the following override:
     * ```
     * function _approve(address owner, address spender, uint256 value, bool) internal virtual override {
     *     super._approve(owner, spender, value, true);
     * }
     * ```
     *
     * Requirements are the same as {_approve}.
     */
    function _approve(address owner, address spender, uint256 value, bool emitEvent) internal virtual {
        if (owner == address(0)) {
            revert ERC20InvalidApprover(address(0));
        }
        if (spender == address(0)) {
            revert ERC20InvalidSpender(address(0));
        }
        _allowances[owner][spender] = value;
        if (emitEvent) {
            emit Approval(owner, spender, value);
        }
    }

    /**
     * @dev Updates `owner` s allowance for `spender` based on spent `value`.
     *
     * Does not update the allowance value in case of infinite allowance.
     * Revert if not enough allowance is available.
     *
     * Does not emit an {Approval} event.
     */
    function _spendAllowance(address owner, address spender, uint256 value) internal virtual {
        uint256 currentAllowance = allowance(owner, spender);
        if (currentAllowance != type(uint256).max) {
            if (currentAllowance < value) {
                revert ERC20InsufficientAllowance(spender, currentAllowance, value);
            }
            unchecked {
                _approve(owner, spender, currentAllowance - value, false);
            }
        }
    }
}

/**
 * @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.
 *
 * The initial owner is set to the address provided by the deployer. 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;

    /**
     * @dev The caller account is not authorized to perform an operation.
     */
    error OwnableUnauthorizedAccount(address account);

    /**
     * @dev The owner is not a valid owner account. (eg. `address(0)`)
     */
    error OwnableInvalidOwner(address owner);

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

    /**
     * @dev Initializes the contract setting the address provided by the deployer as the initial owner.
     */
    constructor(address initialOwner) {
        if (initialOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(initialOwner);
    }

    /**
     * @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 {
        if (owner() != _msgSender()) {
            revert OwnableUnauthorizedAccount(_msgSender());
        }
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby disabling any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        if (newOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _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);
    }
}

/// Uniswap factory interface
interface IFactory {
    function createPair(address tokenA, address tokenB)
        external
        returns (address pair);
}

/// Uniswap Router interface
interface IUniswapRouter {
    function factory() external pure returns (address);

    function WETH() external pure returns (address);

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

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

    function addLiquidityETH(
        address token,
        uint256 amountTokenDesired,
        uint256 amountTokenMin,
        uint256 amountETHMin,
        address to,
        uint256 deadline
    ) external payable;
}

/// @title  token
contract THEATRON is ERC20, Ownable {
    /// @notice MAX SUPPLY 1,000,000,000 tokens
    uint256 private constant MAX_SUPPLY = 1_000_000_000 * 1e18;
    /// @notice fee divisor
    uint256 public constant FEE_DIVISOR = 1000;
    /// @notice swap threshold after which collected tax is swapped
    uint256 public swapThreshold = MAX_SUPPLY / 10000; // 0.01% Of the supply
    /// @notice marketing wallet
    address public marketingWallet = address(0x24d92a1840BcEF1C78b431b83B96CE1cB66ed43c);
    /// @notice liquidity receiver wallet
    address public lpReceiverWallet = address(0xdead);

    /// @notice uniswapV2Router
    IUniswapRouter public immutable uniswapV2Router;
    /// @notice uniswapPair
    address public immutable uniswapPair;

    struct BuyFees {
        uint256 marketing;
        uint256 autoLP;
    }

    struct SellFees {
        uint256 marketing;
        uint256 autoLP;
    }
    /// @notice buyFee
    BuyFees public buyFee;
    /// @notice sellFee
    SellFees public sellFee;

    uint256 totalBuyFee;
    uint256 totalSellFee;

    /// @notice swapping status
    bool swapping = false;

    /// @notice manage amm pairs
    mapping(address => bool) public isMarketPair;
   

    ///  errors
    error OnlyMarketingWallet();
    error EthClaimFailed();
    error ZeroAddress();
    error CannotModifyMainPair();
    error CannotClaimNativeToken();
    error UpdateBoolValue();
    error MaxWalletLimitExceeds();

    event WalletsUpdated(address indexed marketing, address indexed lp);

    constructor() ERC20("THEATRON", "THEATRON") Ownable(msg.sender) {
        uniswapV2Router = IUniswapRouter(
            0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D // uniswap v2 router eth
        );
        uniswapPair = IFactory(uniswapV2Router.factory()).createPair(
            address(this),
            uniswapV2Router.WETH()
        );

        isMarketPair[uniswapPair] = true;

        buyFee.marketing = 10; // 1%
        buyFee.autoLP = 0; // 0%
        totalBuyFee = 10; // 1%

        sellFee.marketing = 10; // 1%
        sellFee.autoLP = 0; // 0%
        totalSellFee = 10; // 1%

        
        _mint(msg.sender, MAX_SUPPLY);
    }

    receive() external payable {}

    /// @dev claim any erc20 token apart from native token, accidently sent to token contract
    /// @param token: token to rescue
    /// @param amount: amount to rescue
    /// Requirements -
    /// only marketing wallet can rescue stucked tokens
    function claimStuckedERC20(address token, uint256 amount) external {
        if (msg.sender != marketingWallet) {
            revert OnlyMarketingWallet();
        }
        if (token == address(this)) {
            revert CannotClaimNativeToken();
        }
        // bytes4(keccak256(bytes('transfer(address,uint256)')));
        (bool success, bytes memory data) = token.call(
            abi.encodeWithSelector(0xa9059cbb, marketingWallet, amount)
        );
        require(
            success && (data.length == 0 || abi.decode(data, (bool))),
            "MIRROR: TOKEN_CLAIM_FAILED"
        );
    }

    /// @dev claim stucked eth
    function claimStuckedEth(address wallet) external {
        if (msg.sender != marketingWallet) {
            revert OnlyMarketingWallet();
        }
        (bool sent, ) = wallet.call{value: address(this).balance}("");
        if (!sent) {
            revert EthClaimFailed();
        }
    }


    /// @dev add or remove new pairs
    /// @param pair: new pair to be added or removed
    /// @param value: bool value
    function setMarketPairAddress(address pair, bool value) external onlyOwner {
        if (pair == uniswapPair) {
            revert CannotModifyMainPair();
        }
        isMarketPair[pair] = value;
    }

    /// @dev update dev and marketing wallet
    /// @param _market new marketing wallet
    /// @param _lp new lp receiver wallet
    function setFeeWallets(address _market, address _lp) external onlyOwner {
        if (_market != address(0)) {
            marketingWallet = _market;
            lpReceiverWallet = _lp;
            emit WalletsUpdated(_market, _lp);
        }
    }

    /// @dev update swap threshold
    /// @param newThreshold: new amount after which collected tax is swapped for ether
    function setSwapThreshold(uint256 newThreshold) external onlyOwner {
        if (newThreshold < MAX_SUPPLY / 100 && newThreshold > 1000e18) {
            swapThreshold = newThreshold;
        }
    }

    /// @notice manage token transfer, fees and max wallet limit
    /// @dev See {ERC20-_update}
    function _update(
        address from,
        address to,
        uint256 amount
    ) internal override {
        bool takeFee = true;
          
        if ((from == owner() || from == address(this)) || (to == owner() || to == address(this))) {
            takeFee = false;
        }

        if (takeFee) {
            uint256 fee;
            
            if (isMarketPair[from]) {
                fee = (amount * totalBuyFee) / FEE_DIVISOR;
            } else if (isMarketPair[to]) {
                fee = (amount * totalSellFee) / FEE_DIVISOR;
            }

            amount = amount - fee;

            if (fee > 0) {
                super._update(from, address(this), fee);
            }
        }
        uint256 contractBalance = balanceOf(address(this));

        bool canSwap = contractBalance >= swapThreshold &&
            !isMarketPair[from] &&
            from != owner() &&
            !swapping;
        if (canSwap) {
            swapping = true;
            swapAndLiquify(contractBalance);
            swapping = false;
        }

        super._update(from, to, amount);
    }

    /// @notice swap and liquify
    /// transfer collected tax to designated addresses as per there share
    function swapAndLiquify(uint256 amount) private {
        uint256 totalFees = totalBuyFee + totalSellFee;
        if (totalFees > 0) {
            uint256 tokensForLP = (amount * (buyFee.autoLP + sellFee.autoLP)) /
                (totalFees);
            uint256 lpHalf = tokensForLP / 2;

            uint256 tokensForSwap = amount - lpHalf;
            uint256 ethBeforeSwap = address(this).balance;
            if (tokensForSwap > 0) {
                swapTokensForETH(tokensForSwap);
            }
            uint256 newEth = address(this).balance - ethBeforeSwap;
            uint256 ethForLp = (newEth * lpHalf) / tokensForSwap;
            bool sent;

            /// add liquidity
            if (ethForLp > 0 && lpHalf > 0) {
                addLiquidity(ethForLp, lpHalf);
            }

            /// sent remaining eth to marketing wallet
            if (address(this).balance > 0) {
                (sent, ) = marketingWallet.call{value: address(this).balance}(
                    ""
                );
            }
        } else {
            swapTokensForETH(amount);
            bool y;
            (y, ) = marketingWallet.call{value: address(this).balance}("");
        }
    }

    /// @notice add lp with given tokens and eth
    function addLiquidity(uint256 eth, uint256 tokens) private {
        if (allowance(address(this), address(uniswapV2Router)) < tokens) {
            _approve(
                address(this),
                address(uniswapV2Router),
                type(uint256).max
            );
        }

        uniswapV2Router.addLiquidityETH{value: eth}(
            address(this),
            tokens,
            0,
            0,
            lpReceiverWallet, // lp wallet
            block.timestamp + 360
        );
    }

    ///@notice swap the tax tokens for eth and send to marketing wallet
    function swapTokensForETH(uint256 tokenAmount) private {
        // generate the uniswap pair path of token -> weth
        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = uniswapV2Router.WETH();

        if (allowance(address(this), address(uniswapV2Router)) < tokenAmount) {
            _approve(
                address(this),
                address(uniswapV2Router),
                type(uint256).max
            );
        }

        // make the swap
        uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
            tokenAmount,
            0,
            path,
            address(this),
            block.timestamp + 360
        );
    }
}