creation_sourcecode: /****
  
  
  ****/
  
  // SPDX-License-Identifier: MIT
  pragma solidity ^0.8.19;
  
  /**
   * @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 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 {
      _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 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);
  }
  
  /**
   * @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}.
   *
   * 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 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}.
       *
       * 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 {}
  }
  
  interface IUniswapV2Factory {
    event PairCreated(
      address indexed token0,
      address indexed token1,
      address pair,
      uint256
    );
  
    function feeTo() external view returns (address);
  
    function feeToSetter() external view returns (address);
  
    function getPair(address tokenA, address tokenB)
    external
    view
    returns (address pair);
  
    function allPairs(uint256) external view returns (address pair);
  
    function allPairsLength() external view returns (uint256);
  
    function createPair(address tokenA, address tokenB)
    external
    returns (address pair);
  
    function setFeeTo(address) external;
  
    function setFeeToSetter(address) external;
  }
  
  interface IUniswapV2Router02 {
    function factory() external pure returns (address);
  
    function WETH() external pure returns (address);
  
    function addLiquidity(
      address tokenA,
      address tokenB,
      uint256 amountADesired,
      uint256 amountBDesired,
      uint256 amountAMin,
      uint256 amountBMin,
      address to,
      uint256 deadline
    )
    external
    returns (
      uint256 amountA,
      uint256 amountB,
      uint256 liquidity
    );
  
    function addLiquidityETH(
      address token,
      uint256 amountTokenDesired,
      uint256 amountTokenMin,
      uint256 amountETHMin,
      address to,
      uint256 deadline
    )
    external
    payable
    returns (
      uint256 amountToken,
      uint256 amountETH,
      uint256 liquidity
    );
  
    function swapExactTokensForTokensSupportingFeeOnTransferTokens(
      uint256 amountIn,
      uint256 amountOutMin,
      address[] calldata path,
      address to,
      uint256 deadline
    ) external;
  
    function swapExactETHForTokensSupportingFeeOnTransferTokens(
      uint256 amountOutMin,
      address[] calldata path,
      address to,
      uint256 deadline
    ) external payable;
  
    function swapExactTokensForETHSupportingFeeOnTransferTokens(
      uint256 amountIn,
      uint256 amountOutMin,
      address[] calldata path,
      address to,
      uint256 deadline
    ) external;
  }
  
  contract OCRWA is ERC20, Ownable {
    IUniswapV2Router02 public immutable uniswapV2Router;
  
    bool private swapping;
  
    address public marketingWallet;
    address public devWallet;
    address public treasuryWallet;
  
    uint256 public maxTransactionAmount;
    uint256 public swapTokensAtAmount;
    uint256 public maxWallet;
  
    bool public limitsInEffect = true;
    bool public tradingActive = false;
    bool public swapEnabled = false;
  
    uint256 public buyTotalFees;
    uint256 public buyMarketingFee;
    uint256 public buyDevFee;
    uint256 public buyTreasuryFee;
  
    uint256 public sellTotalFees;
    uint256 public sellMarketingFee;
    uint256 public sellDevFee;
    uint256 public sellTreasuryFee;
  
    uint256 public tokensForMarketing;
    uint256 public tokensForDev;
    uint256 public tokensForTreasury;
  
    mapping(address => bool) private _isExcludedFromFees;
    mapping(address => bool) public _isExcludedMaxTransactionAmount;
    mapping(address => bool) public automatedMarketMakerPairs;
  
    event ExcludeFromFees(address indexed account, bool isExcluded);
    event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value);
  
    constructor() ERC20("On Chain Rwa", "OCRWA") {// 
      IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
      excludeFromMaxTransaction(address(_uniswapV2Router), true);
      uniswapV2Router = _uniswapV2Router;
  
      uint256 totalSupply = 100_000_000 * 1e18;
  
      maxTransactionAmount = 1_000_000 * 1e18; // 1.0% from total supply maxTransactionAmount
      maxWallet = 1_000_000 * 1e18; // 1.0% from total supply maxWallet
      swapTokensAtAmount = 50_000 * 1e18; // 0.05% swap wallet
  
      buyMarketingFee = 10; // 10% initial buy fee for marketing wallet
      buyDevFee = 10; // 10% initial buy fee for dev wallet
      buyTreasuryFee = 10; // 15% initial buy fee for treasury wallet
      buyTotalFees = buyMarketingFee + buyDevFee + buyTreasuryFee;
  
      sellMarketingFee = 10; // 10% initial sell fee for marketing wallet
      sellDevFee = 10; // 10% initial sell fee for dev wallet
      sellTreasuryFee = 10; // 15% initial sell fee for treasury wallet
      sellTotalFees = sellMarketingFee + sellDevFee + sellTreasuryFee;
  
      marketingWallet = address(0x76e6f2CA36febb5eEF3964b47eF963a59e2a79cB); // 
      devWallet = address(0x76e6f2CA36febb5eEF3964b47eF963a59e2a79cB); // 
      treasuryWallet = address(0x76e6f2CA36febb5eEF3964b47eF963a59e2a79cB); // 
  
      // exclude from paying fees or having max transaction amount
      excludeFromFees(owner(), true);
      excludeFromFees(marketingWallet, true);
      excludeFromFees(devWallet, true);
      excludeFromFees(treasuryWallet, true);
      excludeFromFees(address(this), true);
      excludeFromFees(address(0xdead), true);
  
      excludeFromMaxTransaction(owner(), true);
      excludeFromMaxTransaction(marketingWallet, true);
      excludeFromMaxTransaction(devWallet, true);
      excludeFromMaxTransaction(treasuryWallet, true);
      excludeFromMaxTransaction(address(this), true);
      excludeFromMaxTransaction(address(0xdead), true);
  
      /*
          _mint is an internal function in TokenV2.sol that is only called here,
          and CANNOT be called ever again
      */
      _mint(msg.sender, totalSupply);
    }
  
    receive() external payable {}
  
    function enableTrading(uint256 blockNumber) external onlyOwner {
      require(blockNumber == block.number, "not a target block");
      tradingActive = true;
      swapEnabled = true;
    }
  
    function removeLimits() external onlyOwner returns (bool) {
      limitsInEffect = false;
      return true;
    }
  
    function updateSwapTokensAtAmount(uint256 newAmount) external onlyOwner returns (bool){
      require(newAmount >= (totalSupply() * 1) / 100000, "Swap amount cannot be lower than 0.001% total supply.");
      require(newAmount <= (totalSupply() * 5) / 1000, "Swap amount cannot be higher than 0.5% total supply.");
      swapTokensAtAmount = newAmount;
      return true;
    }
  
    function updateMaxTxnAmount(uint256 newNum) external onlyOwner {
      require(newNum >= ((totalSupply() * 15) / 1000) / 1e18, "Cannot set maxTransactionAmount lower than 1.5%");
      maxTransactionAmount = newNum * (10 ** 18);
    }
  
    function updateMaxWalletAmount(uint256 newNum) external onlyOwner {
      require(newNum >= ((totalSupply() * 15) / 1000) / 1e18, "Cannot set maxWalletAmount lower than 1.5%");
      maxWallet = newNum * (10 ** 18);
    }
  
    function excludeFromMaxTransaction(address updAds, bool isEx) public onlyOwner {
      _isExcludedMaxTransactionAmount[updAds] = isEx;
    }
  
    function updateSwapEnabled(bool enabled) external onlyOwner {
      swapEnabled = enabled;
    }
  
    function updateBuyFees(uint256 _marketingFee, uint256 _devFee, uint256 _treasuryFee) external onlyOwner {
      require(_marketingFee <= 10, "Cannot set marketingFee higher than 10%");
      require(_devFee <= 10, "Cannot set devFee higher than 10%");
      require(_treasuryFee <= 15, "Cannot set treasuryFee higher than 15%");
      buyMarketingFee = _marketingFee;
      buyDevFee = _devFee;
      buyTreasuryFee = _treasuryFee;
      buyTotalFees = buyMarketingFee + buyDevFee + buyTreasuryFee;
    }
  
    function updateSellFees(uint256 _marketingFee, uint256 _devFee, uint256 _treasuryFee) external onlyOwner {
      require(_marketingFee <= 10, "Cannot set marketingFee higher than 10%");
      require(_devFee <= 10, "Cannot set devFee higher than 10%");
      require(_treasuryFee <= 15, "Cannot set treasuryFee higher than 15%");
      sellMarketingFee = _marketingFee;
      sellDevFee = _devFee;
      sellTreasuryFee = _treasuryFee;
      sellTotalFees = sellMarketingFee + sellDevFee + sellTreasuryFee;
    }
  
    function excludeFromFees(address account, bool excluded) public onlyOwner {
      _isExcludedFromFees[account] = excluded;
      emit ExcludeFromFees(account, excluded);
    }
  
    function setAutomatedMarketMakerPair(address pair, bool value) public onlyOwner {
      automatedMarketMakerPairs[pair] = value;
      emit SetAutomatedMarketMakerPair(pair, value);
    }
  
    function updateMarketingWallet(address _marketingWallet) external onlyOwner {
      marketingWallet = _marketingWallet;
    }
  
    function updateDevWallet(address _devWallet) external onlyOwner {
      devWallet = _devWallet;
    }
  
    function updateTreasuryWallet(address _treasuryWallet) external onlyOwner {
      treasuryWallet = _treasuryWallet;
    }
  
    function isExcludedFromFees(address account) public view returns (bool) {
      return _isExcludedFromFees[account];
    }
  
    function _transfer(address from, address to, uint256 amount) internal override {
      require(from != address(0), "ERC20: transfer from the zero address");
      require(to != address(0), "ERC20: transfer to the zero address");
  
      if (amount == 0) {
        super._transfer(from, to, 0);
        return;
      }
  
      bool takeFee = !swapping;
      if (_isExcludedFromFees[from] || _isExcludedFromFees[to]) {
        takeFee = false;
      }
  
      uint256 fees = 0;
      if (takeFee) {
        if (automatedMarketMakerPairs[to] && sellTotalFees > 0) {
          fees = (amount * sellTotalFees) / 100;
          tokensForMarketing += fees * sellMarketingFee / sellTotalFees;
          tokensForDev += fees * sellDevFee / sellTotalFees;
          tokensForTreasury += fees * sellTreasuryFee / sellTotalFees;
        }
        else if (automatedMarketMakerPairs[from] && buyTotalFees > 0) {
          fees = (amount * buyTotalFees) / 100;
          tokensForMarketing += fees * buyMarketingFee / buyTotalFees;
          tokensForDev += fees * buyDevFee / buyTotalFees;
          tokensForTreasury += fees * buyTreasuryFee / buyTotalFees;
        }
        amount -= fees;
      }
  
      if (limitsInEffect) {
        if (
          from != owner() &&
          to != owner() &&
          to != address(0) &&
          to != address(0xdead) &&
          !swapping
        ) {
          if (!tradingActive) {
            require(_isExcludedFromFees[from] || _isExcludedFromFees[to], "Trading is not active");
          }
  
          // when buy
          if (automatedMarketMakerPairs[from] && !_isExcludedMaxTransactionAmount[to]) {
            require(
              amount <= maxTransactionAmount,
              "Buy transfer amount exceeds the max tx"
            );
            require(
              amount + balanceOf(to) <= maxWallet,
              "Max wallet exceeded"
            );
          }
          // when sell
          else if (automatedMarketMakerPairs[to] && !_isExcludedMaxTransactionAmount[from]) {
            require(
              amount <= maxTransactionAmount,
              "Sell transfer amount exceeds the max tx"
            );
          } else if (!_isExcludedMaxTransactionAmount[to]) {
            require(
              amount + balanceOf(to) <= maxWallet,
              "Max wallet exceeded"
            );
          }
        }
      }
  
      uint256 contractTokenBalance = balanceOf(address(this));
  
      bool canSwap = contractTokenBalance >= swapTokensAtAmount;
  
      if (
        canSwap &&
        swapEnabled &&
        !swapping &&
        !automatedMarketMakerPairs[from] &&
        !_isExcludedFromFees[from] &&
        !_isExcludedFromFees[to]
      ) {
        swapping = true;
  
        swapBack();
  
        swapping = false;
      }
  
      if (fees > 0) {
        super._transfer(from, address(this), fees);
      }
  
      super._transfer(from, to, amount);
    }
  
    function swapTokensForEth(uint256 tokenAmount) private {
      address[] memory path = new address[](2);
      path[0] = address(this);
      path[1] = uniswapV2Router.WETH();
  
      _approve(address(this), address(uniswapV2Router), tokenAmount);
  
      uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
        tokenAmount,
        0,
        path,
        address(this),
        block.timestamp
      );
    }
  
    function swapBack() private {
      uint256 totalTokensFor = tokensForMarketing + tokensForDev + tokensForTreasury;
      uint256 contractBalance = balanceOf(address(this));
      uint256 totalTokensToSwap = swapTokensAtAmount;
  
      if (contractBalance > swapTokensAtAmount * 40) {
        totalTokensToSwap = swapTokensAtAmount * 40;
      }
  
      uint256 initialETHBalance = address(this).balance;
  
      swapTokensForEth(totalTokensToSwap);
  
      uint256 ethBalance = address(this).balance - initialETHBalance;
  
      uint256 ethForMarketing = (ethBalance * tokensForMarketing) / totalTokensFor;
      uint256 ethForDev = (ethBalance * tokensForDev) / totalTokensFor;
      uint256 ethForTreasury = (ethBalance * tokensForTreasury) / totalTokensFor;
  
      tokensForMarketing = 0;
      tokensForDev = 0;
      tokensForTreasury = 0;
  
      bool success;
      (success,) = address(marketingWallet).call{value : ethForMarketing}("");
      (success,) = address(devWallet).call{value : ethForDev}("");
      (success,) = address(treasuryWallet).call{value : ethForTreasury}("");
    }
  }