creation_sourcecode: /**
   *
   *
     Willie Nelson Ethereum Fan Club
     $WILLIE on Ethereum
     https://WillieClub.org
     https://x.com/WillieClub
     https://t.me/WillieClub
  
     CA: 0xB71953CA1eE0b9e100CAb49aCB9C4104d2563b11
  
     Contract features:
     100,000,000 tokens
     3% buy tax in ETH sent to community, marketing & developer
     16% launch sell tax in ETH sent to community, marketing, & developer
     Function to reduce taxes to 3/3
     Function to remove taxes
     Removable anti-whale restrictions of max transaction & max wallet
   */
  
  // SPDX-License-Identifier: MIT
  
  pragma solidity ^0.8.17;
  pragma experimental ABIEncoderV2;
  
  // OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
  
  // pragma solidity ^0.8.0;
  
  /**
   * @dev Provides information about the current execution context, including the
   * sender of the transaction and its data. While these are generally available
   * via msg.sender and msg.data, they should not be accessed in such a direct
   * manner, since when dealing with meta-transactions the account sending and
   * paying for execution may not be the actual sender (as far as an application
   * is concerned).
   *
   * This contract is only required for intermediate, library-like contracts.
   */
  abstract contract Context {
      function _msgSender() internal view virtual returns (address) {
          return msg.sender;
      }
  
      function _msgData() internal view virtual returns (bytes calldata) {
          return msg.data;
      }
  }
  
  // OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)
  
  // pragma solidity ^0.8.0;
  
  // import "../utils/Context.sol";
  
  /**
   * @dev Contract module which provides a basic access control mechanism, where
   * there is an account (an owner) that can be granted exclusive access to
   * specific functions.
   *
   * By default, the owner account will be the one that deploys the contract. This
   * can later be changed with {transferOwnership}.
   *
   * This module is used through inheritance. It will make available the modifier
   * `onlyOwner`, which can be applied to your functions to restrict their use to
   * the owner.
   */
  abstract contract Ownable is Context {
      address private _owner;
  
      event OwnershipTransferred(
          address indexed previousOwner,
          address indexed newOwner
      );
  
      /**
       * @dev Initializes the contract setting the deployer as the initial owner.
       */
      constructor() {
          _transferOwnership(_msgSender());
      }
  
      /**
       * @dev Throws if called by any account other than the owner.
       */
      modifier onlyOwner() {
          _checkOwner();
          _;
      }
  
      /**
       * @dev Returns the address of the current owner.
       */
      function owner() public view virtual returns (address) {
          return _owner;
      }
  
      /**
       * @dev Throws if the sender is not the owner.
       */
      function _checkOwner() internal view virtual {
          require(owner() == _msgSender(), "Ownable: caller is not the owner");
      }
  
      /**
       * @dev Leaves the contract without owner. It will not be possible to call
       * `onlyOwner` functions. 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);
      }
  }
  
  // OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)
  
  // pragma solidity ^0.8.0;
  
  /**
   * @dev Interface of the ERC20 standard as defined in the EIP.
   */
  interface IERC20 {
      /**
       * @dev Emitted when `value` tokens are moved from one account (`from`) to
       * another (`to`).
       *
       * Note that `value` may be zero.
       */
      event Transfer(address indexed from, address indexed to, uint256 value);
  
      /**
       * @dev Emitted when the allowance of a `spender` for an `owner` is set by
       * a call to {approve}. `value` is the new allowance.
       */
      event Approval(
          address indexed owner,
          address indexed spender,
          uint256 value
      );
  
      /**
       * @dev Returns the amount of tokens in existence.
       */
      function totalSupply() external view returns (uint256);
  
      /**
       * @dev Returns the amount of tokens owned by `account`.
       */
      function balanceOf(address account) external view returns (uint256);
  
      /**
       * @dev Moves `amount` tokens from the caller's account to `to`.
       *
       * Returns a boolean value indicating whether the operation succeeded.
       *
       * Emits a {Transfer} event.
       */
      function transfer(address to, uint256 amount) external returns (bool);
  
      /**
       * @dev Returns the remaining number of tokens that `spender` will be
       * allowed to spend on behalf of `owner` through {transferFrom}. This is
       * zero by default.
       *
       * This value changes when {approve} or {transferFrom} are called.
       */
      function allowance(
          address owner,
          address spender
      ) external view returns (uint256);
  
      /**
       * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
       *
       * Returns a boolean value indicating whether the operation succeeded.
       *
       * IMPORTANT: Beware that changing an allowance with this method brings the risk
       * that someone may use both the old and the new allowance by unfortunate
       * transaction ordering. One possible solution to mitigate this race
       * condition is to first reduce the spender's allowance to 0 and set the
       * desired value afterwards:
       * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
       *
       * Emits an {Approval} event.
       */
      function approve(address spender, uint256 amount) external returns (bool);
  
      /**
       * @dev Moves `amount` tokens from `from` to `to` using the
       * allowance mechanism. `amount` is then deducted from the caller's
       * allowance.
       *
       * Returns a boolean value indicating whether the operation succeeded.
       *
       * Emits a {Transfer} event.
       */
      function transferFrom(
          address from,
          address to,
          uint256 amount
      ) external returns (bool);
  }
  
  // OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)
  
  // pragma solidity ^0.8.0;
  
  // import "../IERC20.sol";
  
  /**
   * @dev Interface for the optional metadata functions from the ERC20 standard.
   *
   * _Available since v4.1._
   */
  interface IERC20Metadata is IERC20 {
      /**
       * @dev Returns the name of the token.
       */
      function name() external view returns (string memory);
  
      /**
       * @dev Returns the symbol of the token.
       */
      function symbol() external view returns (string memory);
  
      /**
       * @dev Returns the decimals places of the token.
       */
      function decimals() external view returns (uint8);
  }
  
  // OpenZeppelin Contracts (last updated v4.8.0) (token/ERC20/ERC20.sol)
  
  // pragma solidity ^0.8.0;
  
  // import "./IERC20.sol";
  // import "./extensions/IERC20Metadata.sol";
  // import "../../utils/Context.sol";
  
  /**
   * @dev Implementation of the {IERC20} interface.
   *
   * This implementation is agnostic to the way tokens are created. This means
   * that a supply mechanism has to be added in a derived contract using {_mint}.
   * For a generic mechanism see {ERC20PresetMinterPauser}.
   *
   * TIP: For a detailed writeup see our guide
   * https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How
   * to implement supply mechanisms].
   *
   * 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 {}
  }
  
  // OpenZeppelin Contracts (last updated v4.6.0) (utils/math/SafeMath.sol)
  
  // pragma solidity ^0.8.0;
  
  // CAUTION
  // This version of SafeMath should only be used with Solidity 0.8 or later,
  // because it relies on the compiler's built in overflow checks.
  
  /**
   * @dev Wrappers over Solidity's arithmetic operations.
   *
   * NOTE: `SafeMath` is generally not needed starting with Solidity 0.8, since the compiler
   * now has built in overflow checking.
   */
  library SafeMath {
      /**
       * @dev Returns the addition of two unsigned integers, with an overflow flag.
       *
       * _Available since v3.4._
       */
      function tryAdd(
          uint256 a,
          uint256 b
      ) internal pure returns (bool, uint256) {
          unchecked {
              uint256 c = a + b;
              if (c < a) return (false, 0);
              return (true, c);
          }
      }
  
      /**
       * @dev Returns the subtraction of two unsigned integers, with an overflow flag.
       *
       * _Available since v3.4._
       */
      function trySub(
          uint256 a,
          uint256 b
      ) internal pure returns (bool, uint256) {
          unchecked {
              if (b > a) return (false, 0);
              return (true, a - b);
          }
      }
  
      /**
       * @dev Returns the multiplication of two unsigned integers, with an overflow flag.
       *
       * _Available since v3.4._
       */
      function tryMul(
          uint256 a,
          uint256 b
      ) internal pure returns (bool, uint256) {
          unchecked {
              // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
              // benefit is lost if 'b' is also tested.
              // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
              if (a == 0) return (true, 0);
              uint256 c = a * b;
              if (c / a != b) return (false, 0);
              return (true, c);
          }
      }
  
      /**
       * @dev Returns the division of two unsigned integers, with a division by zero flag.
       *
       * _Available since v3.4._
       */
      function tryDiv(
          uint256 a,
          uint256 b
      ) internal pure returns (bool, uint256) {
          unchecked {
              if (b == 0) return (false, 0);
              return (true, a / b);
          }
      }
  
      /**
       * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
       *
       * _Available since v3.4._
       */
      function tryMod(
          uint256 a,
          uint256 b
      ) internal pure returns (bool, uint256) {
          unchecked {
              if (b == 0) return (false, 0);
              return (true, a % b);
          }
      }
  
      /**
       * @dev Returns the addition of two unsigned integers, reverting on
       * overflow.
       *
       * Counterpart to Solidity's `+` operator.
       *
       * Requirements:
       *
       * - Addition cannot overflow.
       */
      function add(uint256 a, uint256 b) internal pure returns (uint256) {
          return a + b;
      }
  
      /**
       * @dev Returns the subtraction of two unsigned integers, reverting on
       * overflow (when the result is negative).
       *
       * Counterpart to Solidity's `-` operator.
       *
       * Requirements:
       *
       * - Subtraction cannot overflow.
       */
      function sub(uint256 a, uint256 b) internal pure returns (uint256) {
          return a - b;
      }
  
      /**
       * @dev Returns the multiplication of two unsigned integers, reverting on
       * overflow.
       *
       * Counterpart to Solidity's `*` operator.
       *
       * Requirements:
       *
       * - Multiplication cannot overflow.
       */
      function mul(uint256 a, uint256 b) internal pure returns (uint256) {
          return a * b;
      }
  
      /**
       * @dev Returns the integer division of two unsigned integers, reverting on
       * division by zero. The result is rounded towards zero.
       *
       * Counterpart to Solidity's `/` operator.
       *
       * Requirements:
       *
       * - The divisor cannot be zero.
       */
      function div(uint256 a, uint256 b) internal pure returns (uint256) {
          return a / b;
      }
  
      /**
       * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
       * reverting when dividing by zero.
       *
       * Counterpart to Solidity's `%` operator. This function uses a `revert`
       * opcode (which leaves remaining gas untouched) while Solidity uses an
       * invalid opcode to revert (consuming all remaining gas).
       *
       * Requirements:
       *
       * - The divisor cannot be zero.
       */
      function mod(uint256 a, uint256 b) internal pure returns (uint256) {
          return a % b;
      }
  
      /**
       * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
       * overflow (when the result is negative).
       *
       * CAUTION: This function is deprecated because it requires allocating memory for the error
       * message unnecessarily. For custom revert reasons use {trySub}.
       *
       * Counterpart to Solidity's `-` operator.
       *
       * Requirements:
       *
       * - Subtraction cannot overflow.
       */
      function sub(
          uint256 a,
          uint256 b,
          string memory errorMessage
      ) internal pure returns (uint256) {
          unchecked {
              require(b <= a, errorMessage);
              return a - b;
          }
      }
  
      /**
       * @dev Returns the integer division of two unsigned integers, reverting with custom message on
       * division by zero. The result is rounded towards zero.
       *
       * Counterpart to Solidity's `/` operator. Note: this function uses a
       * `revert` opcode (which leaves remaining gas untouched) while Solidity
       * uses an invalid opcode to revert (consuming all remaining gas).
       *
       * Requirements:
       *
       * - The divisor cannot be zero.
       */
      function div(
          uint256 a,
          uint256 b,
          string memory errorMessage
      ) internal pure returns (uint256) {
          unchecked {
              require(b > 0, errorMessage);
              return a / b;
          }
      }
  
      /**
       * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
       * reverting with custom message when dividing by zero.
       *
       * CAUTION: This function is deprecated because it requires allocating memory for the error
       * message unnecessarily. For custom revert reasons use {tryMod}.
       *
       * Counterpart to Solidity's `%` operator. This function uses a `revert`
       * opcode (which leaves remaining gas untouched) while Solidity uses an
       * invalid opcode to revert (consuming all remaining gas).
       *
       * Requirements:
       *
       * - The divisor cannot be zero.
       */
      function mod(
          uint256 a,
          uint256 b,
          string memory errorMessage
      ) internal pure returns (uint256) {
          unchecked {
              require(b > 0, errorMessage);
              return a % b;
          }
      }
  }
  
  // pragma solidity >=0.5.0;
  
  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;
  }
  
  // pragma solidity >=0.6.2;
  
  interface IUniswapV2Router01 {
      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 removeLiquidity(
          address tokenA,
          address tokenB,
          uint256 liquidity,
          uint256 amountAMin,
          uint256 amountBMin,
          address to,
          uint256 deadline
      ) external returns (uint256 amountA, uint256 amountB);
  
      function removeLiquidityETH(
          address token,
          uint256 liquidity,
          uint256 amountTokenMin,
          uint256 amountETHMin,
          address to,
          uint256 deadline
      ) external returns (uint256 amountToken, uint256 amountETH);
  
      function removeLiquidityWithPermit(
          address tokenA,
          address tokenB,
          uint256 liquidity,
          uint256 amountAMin,
          uint256 amountBMin,
          address to,
          uint256 deadline,
          bool approveMax,
          uint8 v,
          bytes32 r,
          bytes32 s
      ) external returns (uint256 amountA, uint256 amountB);
  
      function removeLiquidityETHWithPermit(
          address token,
          uint256 liquidity,
          uint256 amountTokenMin,
          uint256 amountETHMin,
          address to,
          uint256 deadline,
          bool approveMax,
          uint8 v,
          bytes32 r,
          bytes32 s
      ) external returns (uint256 amountToken, uint256 amountETH);
  
      function swapExactTokensForTokens(
          uint256 amountIn,
          uint256 amountOutMin,
          address[] calldata path,
          address to,
          uint256 deadline
      ) external returns (uint256[] memory amounts);
  
      function swapTokensForExactTokens(
          uint256 amountOut,
          uint256 amountInMax,
          address[] calldata path,
          address to,
          uint256 deadline
      ) external returns (uint256[] memory amounts);
  
      function swapExactETHForTokens(
          uint256 amountOutMin,
          address[] calldata path,
          address to,
          uint256 deadline
      ) external payable returns (uint256[] memory amounts);
  
      function swapTokensForExactETH(
          uint256 amountOut,
          uint256 amountInMax,
          address[] calldata path,
          address to,
          uint256 deadline
      ) external returns (uint256[] memory amounts);
  
      function swapExactTokensForETH(
          uint256 amountIn,
          uint256 amountOutMin,
          address[] calldata path,
          address to,
          uint256 deadline
      ) external returns (uint256[] memory amounts);
  
      function swapETHForExactTokens(
          uint256 amountOut,
          address[] calldata path,
          address to,
          uint256 deadline
      ) external payable returns (uint256[] memory amounts);
  
      function quote(
          uint256 amountA,
          uint256 reserveA,
          uint256 reserveB
      ) external pure returns (uint256 amountB);
  
      function getAmountOut(
          uint256 amountIn,
          uint256 reserveIn,
          uint256 reserveOut
      ) external pure returns (uint256 amountOut);
  
      function getAmountIn(
          uint256 amountOut,
          uint256 reserveIn,
          uint256 reserveOut
      ) external pure returns (uint256 amountIn);
  
      function getAmountsOut(
          uint256 amountIn,
          address[] calldata path
      ) external view returns (uint256[] memory amounts);
  
      function getAmountsIn(
          uint256 amountOut,
          address[] calldata path
      ) external view returns (uint256[] memory amounts);
  }
  
  // pragma solidity >=0.6.2;
  
  // import './IUniswapV2Router01.sol';
  
  interface IUniswapV2Router02 is IUniswapV2Router01 {
      function removeLiquidityETHSupportingFeeOnTransferTokens(
          address token,
          uint256 liquidity,
          uint256 amountTokenMin,
          uint256 amountETHMin,
          address to,
          uint256 deadline
      ) external returns (uint256 amountETH);
  
      function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
          address token,
          uint256 liquidity,
          uint256 amountTokenMin,
          uint256 amountETHMin,
          address to,
          uint256 deadline,
          bool approveMax,
          uint8 v,
          bytes32 r,
          bytes32 s
      ) external returns (uint256 amountETH);
  
      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 Willie is ERC20, Ownable {
      using SafeMath for uint256;
  
      IUniswapV2Router02 public immutable uniswapV2Router;
      address public uniswapV2Pair;
      address public constant deadAddress =
          address(0x000000000000000000000000000000000000dEaD);
  
      string public exchangeLink = "https://app.uniswap.or/swap";
      string public websiteLink = "https://willie.club";
  
      address public communityWallet;
      address public marketingWallet;
      address public developerWallet;
  
      bool public tradable = false;
      bool public swappable = false;
      bool private swapping;
      uint256 public swapTokenAmount;
  
      bool public restrictions = true;
      uint256 public restrictMaxTransaction;
      uint256 public restrictMaxWallet;
  
      bool public taxation = true;
      bool public taxLopsided = true;
  
      uint256 public totalBuyTax;
      uint256 public totalSellTax;
      uint256 private communityTax;
      uint256 private marketingTax;
      uint256 private developerTax;
  
      uint256 public totalLopsidedSellTax;
      uint256 private communityLopsidedSellTax;
      uint256 private marketingLopsidedSellTax;
      uint256 private developerLopsidedSellTax;
  
      uint256 private communityTokens;
      uint256 private marketingTokens;
      uint256 private developerTokens;
  
      mapping(address => bool) private automatedMarketMakerPairs;
  
      event ExcludeFromFees(address indexed account, bool isExcluded);
  
      event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value);
  
      event communityWalletUpdated(
          address indexed newWallet,
          address indexed oldWallet
      );
  
      event marketingWalletUpdated(
          address indexed newWallet,
          address indexed oldWallet
      );
  
      event developerWalletUpdated(
          address indexed newWallet,
          address indexed oldWallet
      );
  
      constructor() ERC20("Willie Nelson Ethereum Fan Club", "WILLIE") {
          uniswapV2Router = IUniswapV2Router02(
              0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
          );
          _approve(address(this), address(uniswapV2Router), type(uint256).max);
  
          uint256 totalSupply = 100_000_000 ether;
  
          swapTokenAmount = totalSupply / 2000; // 0.05% of total supply (50,000 tokens)
  
          restrictMaxTransaction = totalSupply / 100; // 1% of total supply (1,000,000 tokens)
          restrictMaxWallet = totalSupply / 20; // 5% of total supply (5,000,000 tokens)
  
          communityTax = 1;
          marketingTax = 1;
          developerTax = 1;
          totalBuyTax = communityTax + marketingTax + developerTax;
          totalSellTax = communityTax + marketingTax + developerTax;
  
          communityLopsidedSellTax = 6;
          marketingLopsidedSellTax = 6;
          developerLopsidedSellTax = 4;
          totalLopsidedSellTax =
              communityLopsidedSellTax +
              marketingLopsidedSellTax +
              developerLopsidedSellTax;
  
          communityWallet = address(0x151F3c23EEd362EA4dA05A2522f65174C3A9F140); // Community Funds
          marketingWallet = address(0x1F5b051E91AA335dADF7ad4a2418097C593cA8BA); // Marketing Funds
          developerWallet = address(0x8C105639e1EEe615D4fF393ac57934c01524278B); // Developer Funds
  
          _mint(address(this), totalSupply);
      }
  
      receive() external payable {}
  
      /**
       * @dev Enables trading, creates a uniswap pair and adds liquidity using the tokens in the contract.
       *
       * sets tradable to true, it can never be set to false after that
       * sets swappable to true, enabling automatic swaps once swapTokenAmount is reached
       * stores uniswap pair address in uniswapV2Pair
       */
      function enableTrading() external onlyOwner {
          require(!tradable, "Trading already enabled.");
  
          uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(
              address(this),
              uniswapV2Router.WETH()
          );
          _approve(address(this), address(uniswapV2Pair), type(uint256).max);
          IERC20(uniswapV2Pair).approve(
              address(uniswapV2Router),
              type(uint256).max
          );
  
          _setAutomatedMarketMakerPair(address(uniswapV2Pair), true);
  
          uint256 tokensInWallet = balanceOf(address(this));
          uint256 tokensToAdd = (tokensInWallet * 100) / 100; // 100% of tokens in contract go to Liquidity Pool to be paired with ETH in contract
  
          uniswapV2Router.addLiquidityETH{value: address(this).balance}(
              address(this),
              tokensToAdd,
              0,
              0,
              owner(),
              block.timestamp
          );
  
          tradable = true;
          swappable = true;
      }
  
      /**
       * @dev Updates the exchangeLink string with a new value
       */
      function updateExchangeLink(string calldata newLink) external onlyOwner {
          exchangeLink = newLink;
      }
  
      /**
       * @dev Updates the websiteLink string with a new value
       */
      function updateWebsiteLink(string calldata newLink) external onlyOwner {
          websiteLink = newLink;
      }
  
      /**
       * @dev Updates the threshold at which the tokens in the contract are automatically swapped for ETH
       */
      function updateSwapTokenAmount(
          uint256 newAmount
      ) external onlyOwner returns (bool) {
          require(
              newAmount >= (totalSupply() * 1) / 100000,
              "ERC20: Swap amount cannot be lower than 0.001% total supply."
          );
          require(
              newAmount <= (totalSupply() * 5) / 1000,
              "ERC20: Swap amount cannot be higher than 0.5% total supply."
          );
          swapTokenAmount = newAmount;
          return true;
      }
  
      /**
       * @dev Updates the communityWallet address
       */
      function updateCommunityWallet(
          address _communityWallet
      ) external onlyOwner {
          require(_communityWallet != address(0), "ERC20: Address 0");
          address oldWallet = communityWallet;
          communityWallet = _communityWallet;
          emit communityWalletUpdated(communityWallet, oldWallet);
      }
  
      /**
       * @dev Updates the marketingWallet address
       */
      function updateMarketingWallet(
          address _marketingWallet
      ) external onlyOwner {
          require(_marketingWallet != address(0), "ERC20: Address 0");
          address oldWallet = marketingWallet;
          marketingWallet = _marketingWallet;
          emit marketingWalletUpdated(marketingWallet, oldWallet);
      }
  
      /**
       * @dev Updates the developerWallet address
       */
      // function updateDeveloperWallet(
      //     address _developerWallet
      // ) external onlyOwner {
      //     require(_developerWallet != address(0), "ERC20: Address 0");
      //     address oldWallet = developerWallet;
      //     developerWallet = _developerWallet;
      //     emit developerWalletUpdated(developerWallet, oldWallet);
      // }
  
      /**
       * @dev removes the max transaction and max wallet restrictions
       * this cannot be reversed
       */
      function removeRestrictions() external onlyOwner {
          restrictions = false;
      }
  
      /**
       * @dev Resets the tax to 3% buy and 16% sell
       */
      function resetTax() external onlyOwner {
          taxation = true;
          taxLopsided = true;
      }
  
      /**
       * @dev Sets the sell tax to 3%
       */
      function reduceSellTax() external onlyOwner {
          taxLopsided = false;
      }
  
      /**
       * @dev Sets the buy and sell fees to 0%
       */
      function removeTax() external onlyOwner {
          taxation = false;
      }
  
      /**
       * @dev Sends any remaining ETH in the contract that wasn't automatically swapped to the owner
       */
      function withdrawStuckETH() public onlyOwner {
          bool success;
          (success, ) = address(msg.sender).call{value: address(this).balance}(
              ""
          );
      }
  
      /**
       * @dev Sends any remaining tokens in the contract to the owner
       */
      function withdrawStuckTokens(address tkn) public onlyOwner {
          require(IERC20(tkn).balanceOf(address(this)) > 0, "No tokens");
          uint256 amount = IERC20(tkn).balanceOf(address(this));
          IERC20(tkn).transfer(msg.sender, amount);
      }
  
      /**
       * @dev stores the address of the automated market maker pair
       */
      function _setAutomatedMarketMakerPair(address pair, bool value) private {
          automatedMarketMakerPairs[pair] = value;
  
          emit SetAutomatedMarketMakerPair(pair, value);
      }
  
      /**
       * @dev Transfer function
       */
      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;
          }
  
          if (
              from != owner() &&
              to != owner() &&
              to != address(0) &&
              to != deadAddress &&
              !swapping
          ) {
              if (!tradable) {
                  require(
                      from == owner() ||
                          from == address(this) ||
                          from == deadAddress ||
                          from == communityWallet ||
                          from == marketingWallet ||
                          from == developerWallet ||
                          to == owner() ||
                          to == address(this) ||
                          to == deadAddress ||
                          to == communityWallet ||
                          to == marketingWallet ||
                          to == developerWallet,
                      "ERC20: Token Trading Not Enabled. Be Patient Anon."
                  );
              }
  
              //when buy
              if (automatedMarketMakerPairs[from]) {
                  if (
                      to != owner() &&
                      to != address(this) &&
                      to != deadAddress &&
                      to != address(uniswapV2Router) &&
                      to != communityWallet &&
                      to != marketingWallet &&
                      to != developerWallet &&
                      to != address(uniswapV2Pair)
                  ) {
                      if (restrictions) {
                          require(
                              amount <= restrictMaxTransaction,
                              "ERC20: Max Transaction Exceeded"
                          );
                          require(
                              amount + balanceOf(to) <= restrictMaxWallet,
                              "ERC20: Max Wallet Exceeded"
                          );
                      }
                  }
              }
              //when sell
              else if (automatedMarketMakerPairs[to]) {
                  if (
                      from != owner() &&
                      from != address(this) &&
                      from != deadAddress &&
                      from != address(uniswapV2Router) &&
                      from != communityWallet &&
                      from != marketingWallet &&
                      from != developerWallet &&
                      from != address(uniswapV2Pair)
                  ) {
                      if (restrictions) {
                          require(
                              amount <= restrictMaxTransaction,
                              "ERC20: Max Transaction Exceeded"
                          );
                      }
                  }
              } else if (
                  to != owner() &&
                  to != address(this) &&
                  to != deadAddress &&
                  to != address(uniswapV2Router) &&
                  to != communityWallet &&
                  to != marketingWallet &&
                  to != developerWallet &&
                  to != address(uniswapV2Pair)
              ) {
                  if (restrictions) {
                      require(
                          amount + balanceOf(to) <= restrictMaxWallet,
                          "ERC20: Max Wallet Exceeded"
                      );
                  }
              }
          }
  
          uint256 contractTokenBalance = balanceOf(address(this));
  
          bool canSwap = contractTokenBalance >= swapTokenAmount;
  
          if (
              canSwap &&
              swappable &&
              !swapping &&
              !automatedMarketMakerPairs[from] &&
              from != owner() &&
              from != address(this) &&
              from != deadAddress &&
              from != communityWallet &&
              from != marketingWallet &&
              from != developerWallet &&
              to != owner() &&
              to != address(this) &&
              to != deadAddress &&
              to != communityWallet &&
              to != marketingWallet &&
              to != developerWallet
          ) {
              swapping = true;
  
              distributeTax();
  
              swapping = false;
          }
  
          bool taxed = !swapping;
  
          if (
              from == owner() ||
              from == address(this) ||
              from == deadAddress ||
              from == communityWallet ||
              from == marketingWallet ||
              from == developerWallet ||
              to == owner() ||
              to == address(this) ||
              to == deadAddress ||
              to == communityWallet ||
              to == marketingWallet ||
              to == developerWallet
          ) {
              taxed = false;
          }
  
          uint256 fees = 0;
  
          if (taxed) {
              // Collect Sell Tax
              if (automatedMarketMakerPairs[to] && taxation) {
                  if (taxLopsided) {
                      fees = amount.mul(totalLopsidedSellTax).div(100);
                      communityTokens +=
                          (fees * communityLopsidedSellTax) /
                          totalLopsidedSellTax;
                      marketingTokens +=
                          (fees * marketingLopsidedSellTax) /
                          totalLopsidedSellTax;
                      developerTokens +=
                          (fees * developerLopsidedSellTax) /
                          totalLopsidedSellTax;
                  } else {
                      fees = amount.mul(totalSellTax).div(100);
                      communityTokens += (fees * communityTax) / totalSellTax;
                      marketingTokens += (fees * marketingTax) / totalSellTax;
                      developerTokens += (fees * developerTax) / totalSellTax;
                  }
              }
              // Collect Buy Tax
              else if (automatedMarketMakerPairs[from] && taxation) {
                  fees = amount.mul(totalBuyTax).div(100);
                  communityTokens += (fees * communityTax) / totalBuyTax;
                  marketingTokens += (fees * marketingTax) / totalBuyTax;
                  developerTokens += (fees * developerTax) / totalBuyTax;
              }
  
              if (fees > 0) {
                  super._transfer(from, address(this), fees);
              }
  
              amount -= fees;
          }
  
          super._transfer(from, to, amount);
      }
  
      /**
       * @dev Helper function that swaps tokens in the contract for ETH
       */
      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);
  
          // make the swap
          uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
              tokenAmount,
              0,
              path,
              address(this),
              block.timestamp
          );
      }
  
      /**
       * @dev Helper function that sends the ETH from the contract to the communityWallet, marketingWallet & developerWallet
       */
      function distributeTax() private {
          uint256 contractBalance = balanceOf(address(this));
          uint256 totalTokensToSwap = communityTokens +
              marketingTokens +
              developerTokens;
          bool success;
  
          if (contractBalance == 0 || totalTokensToSwap == 0) {
              return;
          }
  
          if (contractBalance > swapTokenAmount * 20) {
              contractBalance = swapTokenAmount * 20;
          }
  
          swapTokensForEth(contractBalance);
  
          uint256 ethBalance = address(this).balance;
  
          uint256 ethForCommunity = ethBalance.mul(communityTokens).div(
              totalTokensToSwap
          );
          uint256 ethForMarketing = ethBalance.mul(marketingTokens).div(
              totalTokensToSwap
          );
  
          communityTokens = 0;
          marketingTokens = 0;
          developerTokens = 0;
  
          (success, ) = address(communityWallet).call{value: ethForCommunity}("");
          (success, ) = address(marketingWallet).call{value: ethForMarketing}("");
          (success, ) = address(developerWallet).call{
              value: address(this).balance
          }("");
      }
  }