creation_sourcecode: /* Runegraph [ERC-20] */
  
  // SPDX-License-Identifier: MIT
  pragma solidity ^0.8.24;
  
  abstract contract Context {
      function _msgSender() internal view virtual returns (address) {
          return msg.sender;
      }
  }
  
  interface IERC20 {
      function totalSupply() external view returns (uint256);
  
      function balanceOf(address account) external view returns (uint256);
  
      function transfer(address recipient, uint256 amount) external returns (bool);
  
      function allowance(address owner, address spender) external view returns (uint256);
  
      function approve(address spender, uint256 amount) external returns (bool);
  
      function transferFrom(
          address sender,
          address recipient,
          uint256 amount
      ) external returns (bool);
  
      event Transfer(address indexed from, address indexed to, uint256 value);
      event Approval(
          address indexed owner,
          address indexed spender,
          uint256 value
      );
  }
  
  contract Ownable is Context {
      address private _owner;
      address private _previousOwner;
      event OwnershipTransferred(
          address indexed previousOwner,
          address indexed newOwner
      );
  
      constructor() {
          address msgSender = _msgSender();
          _owner = msgSender;
          emit OwnershipTransferred(address(0), msgSender);
      }
  
      function owner() public view returns (address) {
          return _owner;
      }
  
      modifier onlyOwner() {
          require(_owner == _msgSender(), "Ownable: caller is not the owner");
          _;
      }
  
      function renounceOwnership() public virtual onlyOwner {
          emit OwnershipTransferred(_owner, address(0));
          _owner = address(0);
      }
  
      function transferOwnership(address newOwner) public virtual onlyOwner {
          require(newOwner != address(0), "Ownable: new owner is the zero address");
          emit OwnershipTransferred(_owner, newOwner);
          _owner = newOwner;
      }
  }
  
  library SafeMath {
      function add(uint256 a, uint256 b) internal pure returns (uint256) {
          uint256 c = a + b;
          require(c >= a, "SafeMath: addition overflow");
          return c;
      }
  
      function sub(uint256 a, uint256 b) internal pure returns (uint256) {
          return sub(a, b, "SafeMath: subtraction overflow");
      }
  
      function sub(
          uint256 a,
          uint256 b,
          string memory errorMessage
      ) internal pure returns (uint256) {
          require(b <= a, errorMessage);
          uint256 c = a - b;
          return c;
      }
  
      function mul(uint256 a, uint256 b) internal pure returns (uint256) {
          if (a == 0) {
              return 0;
          }
          uint256 c = a * b;
          require(c / a == b, "SafeMath: multiplication overflow");
          return c;
      }
  
      function div(uint256 a, uint256 b) internal pure returns (uint256) {
          return div(a, b, "SafeMath: division by zero");
      }
  
      function div(
          uint256 a,
          uint256 b,
          string memory errorMessage
      ) internal pure returns (uint256) {
          require(b > 0, errorMessage);
          uint256 c = a / b;
          return c;
      }
  }
  
  interface IUniswapV2Factory {
      function createPair(address tokenA, address tokenB)
          external
          returns (address pair);
  }
  
  interface IUniswapV2Router02 {
      function swapExactTokensForETHSupportingFeeOnTransferTokens(
          uint256 amountIn,
          uint256 amountOutMin,
          address[] calldata path,
          address to,
          uint256 deadline
      ) external;
  
      function factory() external pure returns (address);
  
      function WETH() external pure returns (address);
  
      function addLiquidityETH(
          address token,
          uint256 amountTokenDesired,
          uint256 amountTokenMin,
          uint256 amountETHMin,
          address to,
          uint256 deadline
      )
          external
          payable
          returns (
              uint256 amountToken,
              uint256 amountETH,
              uint256 liquidity
          );
  }
  
  contract Runegraph is Context, IERC20, Ownable {
      using SafeMath for uint256;
  
      string private constant _name = unicode"Runegraph";
      string private constant _symbol = unicode"GRAPH";
      uint8 private constant  _decimals = 18;
  
      mapping(address => uint256) private _balanceOf;
      mapping(address => uint256) private _firstTransferBlockOf;
      mapping(address => bool)    private _isExcludedFromFee;
      mapping(address => mapping(address => uint256)) private _allowances;
  
      uint256 private constant MAX = ~uint256(0);
      uint256 private constant _totalSupply =  24700000 * (10 ** _decimals); 
  
      uint256 private constant _blocksPerMinute = 4;
      uint256 private constant _blocksPerDay = 5760; 
  
      uint256 private constant _quickBuyThreshold = 10 * _blocksPerMinute; 
      uint256 private constant _feeOnSnipedBuy = 20;
  
      uint256 private constant _feeOnSellSameBlock  = 50;
      uint256 private constant _feeOnSellQuickTrade = 30;
      uint256 private constant _feeOnSellIntraDay   = 15;
      uint256 private constant _feeOnSellInterDay   = 5;
  
      uint256 private _feeOnBuy = 5;
      uint256 private _feeOnSell = 5;
  
      uint256 private _taxFee = _feeOnBuy;
      uint256 private _previousTaxFee = _taxFee;
  
      address payable private _marketingWallet = payable(0x3d4B0d708A9b212A8503BAFEFba27dB88992006d);
  
      IUniswapV2Router02 public   uniswapV2Router;
      address public              uniswapV2Pair;
  
      uint256 private _tradeOpenedBlock = 0;
      bool private _tradingOpen = false;
      bool private _swapLock = false;
  
      uint256 public _maxWalletSize = _totalSupply / 10;
      uint256 public _minTokensForSwap = _totalSupply / 250;
      uint256 public _maxTokensForSwap = _totalSupply / 100;
  
      constructor(address uniswapRouter) {
          IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(uniswapRouter);
          uniswapV2Router = _uniswapV2Router;
          uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH());
  
          _isExcludedFromFee[owner()] = true;
          _isExcludedFromFee[address(this)] = true;
          _isExcludedFromFee[_marketingWallet] = true;
  
          _balanceOf[owner()] = _totalSupply;
          _transfer(owner(), _marketingWallet, _totalSupply / 20);
  
          emit Transfer(address(0), owner(), _totalSupply);
      }
      
      modifier lockSwap {
          _swapLock = true;
          _;
          _swapLock = false;
      }
  
      function name() public pure returns (string memory) {
          return _name;
      }
  
      function symbol() public pure returns (string memory) {
          return _symbol;
      }
  
      function decimals() public pure returns (uint8) {
          return _decimals;
      }
  
      function totalSupply() public pure override returns (uint256) {
          return _totalSupply;
      }
  
      function balanceOf(address account) public view override returns (uint256) {
          return _balanceOf[account];
      }
  
      function transfer(address recipient, uint256 amount)
          public
          override
          returns (bool)
      {
          _transfer(_msgSender(), recipient, amount);
          return true;
      }
  
      function allowance(address owner, address spender)
          public
          view
          override
          returns (uint256)
      {
          return _allowances[owner][spender];
      }
  
      function approve(address spender, uint256 amount)
          public
          override
          returns (bool)
      {
          _approve(_msgSender(), spender, amount);
          return true;
      }
  
      function transferFrom(
          address sender,
          address recipient,
          uint256 amount
      ) public override returns (bool) {
          _transfer(sender, recipient, amount);
          _approve(
              sender,
              _msgSender(),
              _allowances[sender][_msgSender()].sub(
                  amount,
                  "ERC20: transfer amount exceeds allowance"
              )
          );
          return true;
      }
  
      function getBuyTaxFee() private view returns (uint256)
      {
          uint256 elapsedBlocks = block.number - _tradeOpenedBlock;
          return elapsedBlocks > _quickBuyThreshold ? _feeOnBuy : _feeOnSnipedBuy;
      }
  
      function getSellTaxFeeFor(address from) private view returns (uint256)
      {
          uint256 firstTransferBlockNum = _firstTransferBlockOf[from];
          uint256 blocksSinceFirstTransfer = firstTransferBlockNum > 0 ? block.number - firstTransferBlockNum : 0;
  
          if (blocksSinceFirstTransfer == 0)
          {
              return _feeOnSellSameBlock;
          }
  
          if (blocksSinceFirstTransfer < _blocksPerMinute * 10)
          {
              return _feeOnSellQuickTrade;
          }
  
          if (blocksSinceFirstTransfer < _blocksPerDay)
          {
              return _feeOnSellIntraDay;
          }
  
          return _feeOnSellInterDay;
      }
  
      function setTaxes() private {
          if (_taxFee == 0) return;
  
          _previousTaxFee = _taxFee;
          _taxFee = 0;
      }
  
      function restoreTaxFee() private {
          _taxFee = _previousTaxFee;
      }
  
      function _approve(
          address owner,
          address spender,
          uint256 amount
      ) private {
          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);
      }
  
      function _transfer(
          address from,
          address to,
          uint256 amount
      ) private {
          require(from != address(0), "ERC20: transfer from the zero address");
          require(to != address(0), "ERC20: transfer to the zero address");
          require(amount > 0, "Transfer amount must be greater than zero");
  
          if (from != owner() && to != owner()) {
              require(_tradingOpen, "TOKEN: Cannot transfer tokens before trading is enabled");
  
              if (to != uniswapV2Pair) {
                  require(balanceOf(to) + amount < _maxWalletSize, "TOKEN: Balance exceeds wallet size!");
              }
  
              uint256 contractTokenBalance = balanceOf(address(this));
              bool canSwap = contractTokenBalance >= _minTokensForSwap;
  
              if (contractTokenBalance >= _maxTokensForSwap)
              {
                  contractTokenBalance = _maxTokensForSwap;
              }
  
              if (canSwap && !_swapLock && from != uniswapV2Pair && !_isExcludedFromFee[from] && !_isExcludedFromFee[to]) {
                  swapTokensForETH(contractTokenBalance);
                  uint256 contractETHBalance = address(this).balance;
                  if (contractETHBalance > 0) {
                      transferETH(address(this).balance);
                  }
              }
          }
  
          bool takeFee = true;
  
          if ((_isExcludedFromFee[from] || _isExcludedFromFee[to]) || (from != uniswapV2Pair && to != uniswapV2Pair)) {
              takeFee = false;
          } else {
              if (from == uniswapV2Pair && to != address(uniswapV2Router)) {
                  _taxFee = getBuyTaxFee();
              }
  
              if (to == uniswapV2Pair && from != address(uniswapV2Router)) {
                  _taxFee = getSellTaxFeeFor(from);
              }
          }
  
          _tokenTransfer(from, to, amount, takeFee);
      }
  
      function swapTokensForETH(uint256 tokenAmount) private lockSwap {
          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 transferETH(uint256 amount) private {
          _marketingWallet.transfer(amount);
      }
  
      function enableTrading(bool tradingOpen) public onlyOwner {
          _tradingOpen = tradingOpen;
          _tradeOpenedBlock = block.number;
      }
  
      function manualSwap() external {
          require(_msgSender() == _marketingWallet);
          uint256 tokenBalance = balanceOf(address(this));
  
          if (tokenBalance > _maxTokensForSwap)
          {
              tokenBalance = _maxTokensForSwap; 
          }
  
          require(tokenBalance > 0);
          swapTokensForETH(tokenBalance);
          transferETH(tokenBalance);
      }
  
      function manualSend() external {
          require(_msgSender() == _marketingWallet);
          uint256 contractETHBalance = address(this).balance;
          transferETH(contractETHBalance);
      }
  
      function _tokenTransfer(
          address sender,
          address recipient,
          uint256 amount,
          bool takeFee
      ) private {
          if (!takeFee) setTaxes();
          _transferStandard(sender, recipient, amount);
          if (!takeFee) restoreTaxFee();
      }
  
      function _transferStandard(
          address from,
          address to,
          uint256 amount
      ) private {
          require(balanceOf(from) >= amount, "Error: transfer amount exceeds balance");
          uint256 amountFee = amount * _taxFee / 100;
          uint256 amountPostFee = amount - amountFee;
  
          _balanceOf[from] -= amount;
          _balanceOf[to] += amountPostFee;
          _balanceOf[address(this)] += amountFee;
  
          if (_firstTransferBlockOf[to] == 0)
          {
              _firstTransferBlockOf[to] = block.number;
          }
  
          emit Transfer(from, to, amount);
      }
  
      receive() external payable {}
  }