creation_sourcecode: // SPDX-License-Identifier: MIT
  pragma solidity 0.8.21;
  
  /**
   * @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;
      }
  }
  
  /**
   * @dev Contract module which provides a basic access control mechanism, where
   * there is an account (an owner) that can be granted exclusive access to
   * specific functions.
   *
   * By default, the owner account will be the one that deploys the contract. This
   * can later be changed with {transferOwnership}.
   *
   * This module is used through inheritance. It will make available the modifier
   * `onlyOwner`, which can be applied to your functions to restrict their use to
   * the owner.
   */
  abstract contract Ownable is Context {
      address private _owner;
  
      event OwnershipTransferred(
          address indexed previousOwner,
          address indexed newOwner
      );
  
      /**
       * @dev Initializes the contract setting the deployer as the initial owner.
       */
      constructor() {
          _transferOwnership(_msgSender());
      }
  
      /**
       * @dev Throws if called by any account other than the owner.
       */
      modifier onlyOwner() {
          _checkOwner();
          _;
      }
  
      /**
       * @dev Returns the address of the current owner.
       */
      function owner() public view virtual returns (address) {
          return _owner;
      }
  
      /**
       * @dev Throws if the sender is not the owner.
       */
      function _checkOwner() internal view virtual {
          require(owner() == _msgSender(), "Ownable: caller is not the owner");
      }
  
      /**
       * @dev Leaves the contract without owner. It will not be possible to call
       * `onlyOwner` functions. 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 {
          require(
              newOwner != address(0),
              "Ownable: new owner is the zero address"
          );
          _transferOwnership(newOwner);
      }
  
      /**
       * @dev Transfers ownership of the contract to a new account (`newOwner`).
       * Internal function without access restriction.
       */
      function _transferOwnership(address newOwner) internal virtual {
          address oldOwner = _owner;
          _owner = newOwner;
          emit OwnershipTransferred(oldOwner, newOwner);
      }
  }
  
  /**
   * @dev Interface of the ERC20 standard as defined in the EIP.
   */
  interface IERC20 {
      /**
       * @dev Emitted when `value` tokens are moved from one account (`from`) to
       * another (`to`).
       *
       * Note that `value` may be zero.
       */
      event Transfer(address indexed from, address indexed to, uint256 value);
  
      /**
       * @dev Emitted when the allowance of a `spender` for an `owner` is set by
       * a call to {approve}. `value` is the new allowance.
       */
      event Approval(
          address indexed owner,
          address indexed spender,
          uint256 value
      );
  
      /**
       * @dev Returns the amount of tokens in existence.
       */
      function totalSupply() external view returns (uint256);
  
      /**
       * @dev Returns the amount of tokens owned by `account`.
       */
      function balanceOf(address account) external view returns (uint256);
  
      /**
       * @dev Moves `amount` tokens from the caller's account to `to`.
       *
       * Returns a boolean value indicating whether the operation succeeded.
       *
       * Emits a {Transfer} event.
       */
      function transfer(address to, uint256 amount) external returns (bool);
  
      /**
       * @dev Returns the remaining number of tokens that `spender` will be
       * allowed to spend on behalf of `owner` through {transferFrom}. This is
       * zero by default.
       *
       * This value changes when {approve} or {transferFrom} are called.
       */
      function allowance(
          address owner,
          address spender
      ) external view returns (uint256);
  
      /**
       * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
       *
       * Returns a boolean value indicating whether the operation succeeded.
       *
       * IMPORTANT: Beware that changing an allowance with this method brings the risk
       * that someone may use both the old and the new allowance by unfortunate
       * transaction ordering. One possible solution to mitigate this race
       * condition is to first reduce the spender's allowance to 0 and set the
       * desired value afterwards:
       * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
       *
       * Emits an {Approval} event.
       */
      function approve(address spender, uint256 amount) external returns (bool);
  
      /**
       * @dev Moves `amount` tokens from `from` to `to` using the
       * allowance mechanism. `amount` is then deducted from the caller's
       * allowance.
       *
       * Returns a boolean value indicating whether the operation succeeded.
       *
       * Emits a {Transfer} event.
       */
      function transferFrom(
          address from,
          address to,
          uint256 amount
      ) external returns (bool);
  }
  
  /**
   * @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);
  }
  
  /**
   * @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}.
   *
   *
   * 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.
   *
   * 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}.
       *
       * 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 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 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:
       *
       * - `to` cannot be the zero address.
       * - the caller must have a balance of at least `amount`.
       */
      function transfer(
          address to,
          uint256 amount
      ) public virtual override returns (bool) {
          address owner = _msgSender();
          _transfer(owner, to, 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}.
       *
       * NOTE: If `amount` 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 amount
      ) public virtual override returns (bool) {
          address owner = _msgSender();
          _approve(owner, 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}.
       *
       * 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 `amount`.
       * - the caller must have allowance for ``from``'s tokens of at least
       * `amount`.
       */
      function transferFrom(
          address from,
          address to,
          uint256 amount
      ) public virtual override returns (bool) {
          address spender = _msgSender();
          _spendAllowance(from, spender, amount);
          _transfer(from, to, 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) {
          address owner = _msgSender();
          _approve(owner, spender, allowance(owner, 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) {
          address owner = _msgSender();
          uint256 currentAllowance = allowance(owner, spender);
          require(
              currentAllowance >= subtractedValue,
              "ERC20: decreased allowance below zero"
          );
          unchecked {
              _approve(owner, spender, currentAllowance - subtractedValue);
          }
  
          return true;
      }
  
      /**
       * @dev Moves `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.
       *
       * Requirements:
       *
       * - `from` cannot be the zero address.
       * - `to` cannot be the zero address.
       * - `from` must have a balance of at least `amount`.
       */
      function _transfer(
          address from,
          address to,
          uint256 amount
      ) internal virtual {
          require(from != address(0), "ERC20: transfer from the zero address");
          require(to != address(0), "ERC20: transfer to the zero address");
  
          _beforeTokenTransfer(from, to, amount);
  
          uint256 fromBalance = _balances[from];
          require(
              fromBalance >= amount,
              "ERC20: transfer amount exceeds balance"
          );
          unchecked {
              _balances[from] = fromBalance - amount;
              // Overflow not possible: the sum of all balances is capped by totalSupply, and the sum is preserved by
              // decrementing then incrementing.
              _balances[to] += amount;
          }
  
          emit Transfer(from, to, amount);
  
          _afterTokenTransfer(from, to, 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;
          unchecked {
              // Overflow not possible: balance + amount is at most totalSupply + amount, which is checked above.
              _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;
              // Overflow not possible: amount <= accountBalance <= totalSupply.
              _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 Updates `owner` s allowance for `spender` based on spent `amount`.
       *
       * Does not update the allowance amount in case of infinite allowance.
       * Revert if not enough allowance is available.
       *
       * Might emit an {Approval} event.
       */
      function _spendAllowance(
          address owner,
          address spender,
          uint256 amount
      ) internal virtual {
          uint256 currentAllowance = allowance(owner, spender);
          if (currentAllowance != type(uint256).max) {
              require(
                  currentAllowance >= amount,
                  "ERC20: insufficient allowance"
              );
              unchecked {
                  _approve(owner, spender, currentAllowance - 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 {}
  }
  
  /// 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 TPUAi: ERC20 token with 5/5 tax
  contract TPUAi is ERC20, Ownable {
      /// @notice MAX SUPPLY 100 million tokens
      uint256 private constant MAX_SUPPLY = 100_000_000 * 1e18;
      /// @notice max buy/sell per tx
      uint256 maxAmountPerTx = (MAX_SUPPLY * 12) / 1000; // 1.2% of the supply
      /// @notice max  wallet amount
      uint256 maxWalletAmount = (MAX_SUPPLY * 3) / 100; // 3% of the supply
      /// @notice marketing wallet address
      address public marketingWallet = address(0x52Cb9E9D202D439EA1545decA2bB962A5DbC3a9b);
      /// @notice development wallet address
      address public developmentWallet = address(0x991F58014E46320659671b4A75a686Bda97f16cb);
      /// @notice lp receiver wallet
      address public lpReceiverWallet = msg.sender;
      /// @notice uniswapV2Router
      IUniswapRouter public immutable uniswapV2Router;
      /// @notice uniswapPair
      address public immutable uniswapPair;
      /// fees struct
      struct BuyFee {
          uint256 marketing;
          uint256 development;
          uint256 autoLP;
      }
      struct SellFee {
          uint256 marketing;
          uint256 development;
          uint256 autoLP;
      }
  
      /// @notice buyFee
      BuyFee public buyFee;
      /// @notice sellFee
      SellFee public sellFee;
      /// @notice total buy fee
      uint256 public totalBuyFee;
      /// @notice total sell fee
      uint256 public totalSellFee;
      /// @notice swapping status
      bool swapping = false;
      /// @notice high tax mode status
      bool initialHighTaxMode = true;
      /// @notice first buy time
      uint256 firstTrade;
      /// @notice manage exclude / incclude from fees
      mapping(address => bool) isExcludedFromFees;
  
      ///  errors
      error OnlyMarketingWallet();
      error MaxBuyPerTxExceeds();
      error MaxSellPerTxExceeds();
      error MinOnePercent();
      error EthClaimFailed();
      error ZeroAddress();
  
      constructor() ERC20("TPUAi", "TPUAi") {
          uniswapV2Router = IUniswapRouter(
              0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
          );
          uniswapPair = IFactory(uniswapV2Router.factory()).createPair(
              address(this),
              uniswapV2Router.WETH()
          );
  
          buyFee.marketing = 3;
          buyFee.development = 1;
          buyFee.autoLP = 1;
          totalBuyFee = 5;
  
          sellFee.marketing = 3;
          sellFee.development = 1;
          sellFee.autoLP = 1;
          totalSellFee = 5;
  
          isExcludedFromFees[owner()] = true;
          isExcludedFromFees[address(this)] = true;
          isExcludedFromFees[marketingWallet] = true;
          isExcludedFromFees[developmentWallet] = true;
          _mint(msg.sender, MAX_SUPPLY);
      }
  
      receive() external payable {}
  
      /// @dev claim any erc20 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();
          }
          // 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))),
              "BARC: 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 exclude or include a address from / to fees
      /// @param user: user address to exclude or include
      /// @param excluded: true to exclude, false to include
      function exlcudeFromFees(address user, bool excluded) external onlyOwner {
          isExcludedFromFees[user] = excluded;
      }
  
      /// @dev update max buy/ sell  amount per tx globally
      /// @param _percent: pecent of total supply
      /// Requirements -
      /// must be 1 or more
      function updateMaxTxAmount(uint256 _percent) external onlyOwner {
          if (_percent < 1) {
              revert MinOnePercent();
          }
          maxAmountPerTx = (totalSupply() * _percent) / 100;
      }
  
      /// @dev update max wallet amount
      ///  /// @param _percent: pecent of total supply
      /// Requirements -
      /// must be 1 or more
      function updateMaxWalletAmount(uint256 _percent) external onlyOwner {
          if (_percent < 1) {
              revert MinOnePercent();
          }
          maxWalletAmount = (totalSupply() * _percent) / 100;
      }
  
      /// @dev restore normal tax globally
      function restoreDefaultTax() external {
          require(msg.sender == owner() || msg.sender == marketingWallet);
          initialHighTaxMode = false;
      }
  
      /// @dev update buy tax globally
      /// @param _marketing: new  marketing tax on buy
      /// @param _dev: new wei wu tax on buy
      /// @param _lp: new lp tax on buy
      function updateBuyTax(
          uint256 _marketing,
          uint256 _dev,
          uint256 _lp
      ) external onlyOwner {
          if (_marketing + _dev + _lp <= 10) {
              buyFee.marketing = _marketing;
              buyFee.development = _dev;
              buyFee.autoLP = _lp;
              totalBuyFee = _marketing + _lp + _dev;
          }
      }
  
      /// @dev update sell tax globally
      /// @param _marketing: new  marketing tax on sell
      /// @param _dev: new wei wu tax on sell
      /// @param _lp: new lp tax on sell
      function updateSellTax(
          uint256 _marketing,
          uint256 _dev,
          uint256 _lp
      ) external onlyOwner {
          if (_marketing + _dev + _lp <= 10) {
              sellFee.marketing = _marketing;
              sellFee.development = _dev;
              sellFee.autoLP = _lp;
              totalSellFee = _marketing + _lp + _dev;
          }
      }
  
      /// @dev update fee wallets globally
      /// @param _mkt: new marketing wallet
      /// @param _dev: new development wallet
      /// @param _lpReceiver: new lp receiver wallet
      function updateWallets(
          address _mkt,
          address _dev,
          address _lpReceiver
      ) external onlyOwner {
          if (_mkt == address(0) || _dev == address(0)) {
              revert ZeroAddress();
          }
          marketingWallet = _mkt;
          developmentWallet = _dev;
          lpReceiverWallet = _lpReceiver;
      }
  
      /// @notice manage token transfer and fees
      ///         high fees is applicable for first 30 minutes from first buy
      ///         after 30 minutes / if owner reset fees, will restore to 5/5
      /// @dev See {ERC20-_transfer}
      function _transfer(
          address from,
          address to,
          uint256 amount
      ) internal override {
          bool takeFee = true;
          if (isExcludedFromFees[from] || isExcludedFromFees[to]) {
              takeFee = false;
          }
  
          if (takeFee) {
              uint256 fee;
              if (from == uniswapPair) {
                  if (amount > maxAmountPerTx) {
                      revert MaxBuyPerTxExceeds();
                  }
                  if (firstTrade == 0) {
                      firstTrade = block.timestamp;
                  }
  
                  if (totalBuyFee > 0) {
                      fee = (amount * totalBuyFee) / 100;
                      if (
                          initialHighTaxMode &&
                          block.timestamp - firstTrade < 30 minutes
                      ) {
                          fee = fee * 4;
                      }
                  }
              } else if (to == uniswapPair) {
                  if (amount > maxAmountPerTx) {
                      revert MaxSellPerTxExceeds();
                  }
  
                  if (totalSellFee > 0) {
                      fee = (amount * totalSellFee) / 100;
                      if (
                          initialHighTaxMode &&
                          block.timestamp - firstTrade < 30 minutes
                      ) {
                          fee = fee * 4;
                      }
                  }
              }
  
              amount = amount - fee;
  
              if (fee > 0) {
                  super._transfer(from, address(this), fee);
              }
          }
          uint256 contractBalance = balanceOf(address(this));
  
          bool canSwap = contractBalance >= 100e18 &&
              from != uniswapPair &&
              (!isExcludedFromFees[from]) &&
              !swapping;
          if (canSwap) {
              swapping = true;
              swapAndLiquify(contractBalance);
              swapping = false;
          }
  
          super._transfer(from, to, amount);
      }
  
      /// @notice swap and liquify
      /// transfer collected tax to designated addresses as per there share
      function swapAndLiquify(uint256 tokens) private {
          uint256 total = totalBuyFee + totalSellFee;
          uint256 lpHalf = ((buyFee.autoLP + sellFee.autoLP) * tokens) /
              (total * 2);
          uint256 tokensForSwap = (tokens - lpHalf);
          uint256 marketingTokens = (tokens *
              (buyFee.marketing + sellFee.marketing)) / total;
          swapTokensForETH(tokensForSwap);
          uint256 ethBalance = address(this).balance;
          uint256 lpEth = (ethBalance * lpHalf) / tokensForSwap;
          uint256 marketingEth = (ethBalance * marketingTokens) / tokensForSwap;
          if (lpEth > 0 && lpHalf > 0) {
              addLiquidity(lpEth, lpHalf);
          }
          if (marketingEth > 0) {
              bool sent;
              (sent, ) = marketingWallet.call{value: address(this).balance}("");
          }
          if (address(this).balance > 0) {
              bool sent;
              (sent, ) = developmentWallet.call{value: address(this).balance}("");
          }
      }
  
      ///@notice swap the tax tokens for eth and send to marketing wallet
      function swapTokensForETH(uint256 tokenAmount) private {
          // generate the uniswap pair path of token -> wbnb
          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
              );
          }
  
          uint256 out = uniswapV2Router.getAmountsOut(tokenAmount, path)[1];
          // make the swap
          uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
              tokenAmount,
              (out * 80) / 100, //20% Slippage
              path,
              address(this),
              block.timestamp + 360
          );
      }
  
      /// add liquidity
      function addLiquidity(uint256 ethAmount, uint256 tokens) private {
          uniswapV2Router.addLiquidityETH{value: ethAmount}(
              address(this),
              tokens,
              0,
              0,
              lpReceiverWallet,
              block.timestamp + 360
          );
      }
  }