// ARENA DEATHMATCH - Warning: When the countdown ends on arenadm.io, the contest is over and liquidity will be pulled. Exit before the timer ends and trade at your own risk.
// --------
// Token Deployed using Saintbot.
// Contract Renounced automatically.
// Liquidity Locked on UNCX, 0 Owner Tokens, Anti-Rug by default.
// Deploy and manage fair launch anti-rug tokens seamlessly and lightning-fast with low gas on our free-to-use Telegram bot.
// --------
// Website: https://nancechad.com
// Twitter: https://twitter.com/nancechad_erc20
// Telegram: https://t.me/NancechadPortal 
// Gitbook:

// SPDX-License-Identifier: UNLICENSED
pragma solidity 0.8.21;

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);
}

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;
  }
}

contract Ownable is Context {
  address private _owner;

  error OwnableInvalidOwner(address owner);

  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 {
    if (newOwner == address(0)) {
      revert OwnableInvalidOwner(address(0));
    }
    _transferOwnership(newOwner);
  }

  /**
   * @dev Transfers ownership of the contract to a new account (`newOwner`).
   * Internal function without access restriction.
   */
  function _transferOwnership(address newOwner) internal virtual {
    address oldOwner = _owner;
    _owner = newOwner;
    emit OwnershipTransferred(oldOwner, newOwner);
  }
}

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);
}

interface IRefSys {
  function getRefReceiver(
    bytes memory _refCode
  ) external view returns (address receiverWallet);
}

interface IERCBurn {
  function burn(uint256 _amount) external;

  function approve(address spender, uint256 amount) external returns (bool);

  function allowance(address owner, address spender) external returns (uint256);

  function balanceOf(address account) external view returns (uint256);

  function transfer(address to, uint256 value) external returns (bool);
}

contract V4ArenaToken is Context, IERC20, Ownable {
  using SafeMath for uint256;

  mapping(address => uint256) private _balances;
  mapping(address => mapping(address => uint256)) private _allowances;
  mapping(address => bool) private _isExcludedFromFee;
  mapping(address => bool) private bots;
  mapping(address => uint256) private _holderLastTransferTimestamp;

  bool public transferDelayEnabled = true;

  // wallet that will be used to receive funds and distribute to rev share contracts
  address payable public teamWallet;

  uint256 private _initialBuyTax = 25;
  uint256 private _initialSellTax = 25;
  uint256 private _finalBuyTax = 1;
  uint256 private _finalSellTax = 1;
  uint256 private _reduceBuyTaxAt = 25;
  uint256 private _reduceSellTaxAt = 25;
  uint256 public _preventSwapBefore = 2;
  uint256 public _buyCount = 0;

  uint8 private constant _decimals = 18;
  uint256 private immutable _tTotal;
  string private _name;
  string private _symbol;

  uint256 public _maxTxAmount;
  uint256 public _maxWalletSize;
  uint256 public _maxTaxSwap;
  uint256 public _taxSwapThreshold;

  IUniswapV2Router02 public uniswapV2Router;
  address public uniswapV2Pair;

  bool public tradingOpen;
  bool private inSwap = false;
  bool private swapEnabled = false;

  uint256 private immutable _deployedAt;

  IRefSys public constant REF_SYS =
    IRefSys(0x8A99c005C7B425ce999441afeE22D4987F7a9869);
  address public constant MAINNET_BOT_TRADING_RECEIVER =
    0xD5E2E43e30b706de8A0e01e72a6aBa2b8930af44;

  address public immutable REF;

  event MaxTxAmountUpdated(uint256 _maxTxAmount);

  modifier lockTheSwap() {
    inSwap = true;
    _;
    inSwap = false;
  }

  constructor(
    string memory name_,
    string memory symbol_,
    uint256 _totalSupply,
    address _lockOwnerAndTaxReceiver,
    bytes memory _ref
  ) payable {
    require(
      msg.value >= 0.3 ether,
      "weth liquidity need to be bigger than 0.3"
    );
    require(
      _totalSupply >= 10 && _totalSupply <= 1_000_000_000_000,
      "InvalidSupply()"
    );

    _name = name_;
    _symbol = symbol_;

    uint256 supplyWithDecimals_ = _totalSupply * 1e18;

    _tTotal = supplyWithDecimals_;

    _maxTxAmount = (supplyWithDecimals_ * 3) / 100;
    _maxWalletSize = (supplyWithDecimals_ * 6) / 100;
    _maxTaxSwap = supplyWithDecimals_ / 100;
    _taxSwapThreshold = supplyWithDecimals_ / 200;

    teamWallet = payable(_lockOwnerAndTaxReceiver);

    _balances[address(this)] = supplyWithDecimals_;

    _isExcludedFromFee[owner()] = true;
    _isExcludedFromFee[address(this)] = true;

    if (_lockOwnerAndTaxReceiver != msg.sender)
      transferOwnership(_lockOwnerAndTaxReceiver);

    _deployedAt = block.timestamp;

    REF = REF_SYS.getRefReceiver(_ref);
  }

  function name() public view returns (string memory) {
    return _name;
  }

  function symbol() public view returns (string memory) {
    return _symbol;
  }

  function decimals() public pure returns (uint8) {
    return _decimals;
  }

  function totalSupply() public view returns (uint256) {
    return _tTotal;
  }

  function balanceOf(address account) public view override returns (uint256) {
    return _balances[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 _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");

    uint256 taxAmount = 0;

    if (from != owner() && to != owner()) {
      taxAmount = amount
        .mul((_buyCount > _reduceBuyTaxAt) ? _finalBuyTax : _initialBuyTax)
        .div(100);

      if (transferDelayEnabled) {
        if (to != address(uniswapV2Router) && to != address(uniswapV2Pair)) {
          require(
            _holderLastTransferTimestamp[tx.origin] < block.number,
            "_transfer:: Transfer Delay enabled.  Only one purchase per block allowed."
          );
          _holderLastTransferTimestamp[tx.origin] = block.number;
        }
      }

      if (
        from == uniswapV2Pair &&
        to != address(uniswapV2Router) &&
        !_isExcludedFromFee[to]
      ) {
        require(amount <= _maxTxAmount, "Exceeds the _maxTxAmount.");
        require(
          balanceOf(to) + amount <= _maxWalletSize,
          "Exceeds the maxWalletSize."
        );
        _buyCount++;
      }

      if (to == uniswapV2Pair && from != address(this)) {
        taxAmount = amount
          .mul((_buyCount > _reduceSellTaxAt) ? _finalSellTax : _initialSellTax)
          .div(100);
      }

      uint256 contractTokenBalance = balanceOf(address(this));

      if (
        !inSwap &&
        to == uniswapV2Pair &&
        swapEnabled &&
        contractTokenBalance > _taxSwapThreshold &&
        _buyCount > _preventSwapBefore
      ) {
        swapTokensForEth(min(amount, min(contractTokenBalance, _maxTaxSwap)));

        uint256 contractETHBalance = address(this).balance;
        if (contractETHBalance > 50000000000000000) {
          _distributeMultisigs(address(this).balance);
        }
      }
    }

    // Transfers before opening trade have no tax
    if (!tradingOpen) {
      taxAmount = 0;
    }

    if (taxAmount > 0) {
      _balances[address(this)] = _balances[address(this)].add(taxAmount);
      emit Transfer(from, address(this), taxAmount);
    }

    _balances[from] = _balances[from].sub(amount);
    _balances[to] = _balances[to].add(amount.sub(taxAmount));

    emit Transfer(from, to, amount.sub(taxAmount));
  }

  function min(uint256 a, uint256 b) private pure returns (uint256) {
    return (a > b) ? b : a;
  }

  function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {
    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 _distributeMultisigs(uint256 _amount) private {
    uint256 ethBalance = _amount;

    if (REF == address(0)) {
      // If user has not entered a ref code, he will receive 4% fees
      uint256 taxWalletAmount = (ethBalance * 80) / 100;

      // Send 80% of the fees
      (bool success, ) = teamWallet.call{value: taxWalletAmount}("");

      require(success, "failed sending eth");

      address payable SAINTBOT_TAXES = payable(MAINNET_BOT_TRADING_RECEIVER);

      // Send 100% - 80% of the fees to us
      (success, ) = SAINTBOT_TAXES.call{value: ethBalance - taxWalletAmount}(
        ""
      );

      require(success, "failed sending eth");
    } else {
      // If he did enter a ref code, he will receive 4.1% fees
      uint256 taxWalletAmount = (ethBalance * 82) / 100;

      // Send 82% of the fees
      (bool success, ) = teamWallet.call{value: taxWalletAmount}("");

      require(success, "failed sending eth");

      // 0.15% to ref address, meaning that its 3% out of the 5%
      payable(REF).transfer((taxWalletAmount * 3) / 100);

      address payable SAINTBOT_TAXES = payable(MAINNET_BOT_TRADING_RECEIVER);

      (success, ) = SAINTBOT_TAXES.call{value: (ethBalance * 15) / 100}("");

      require(success, "failed sending eth");
    }
  }

  function addLiquidity() external onlyOwner {
    require(!tradingOpen, "trading is already open");

    uniswapV2Router = IUniswapV2Router02(
      0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
    );

    _approve(address(this), address(uniswapV2Router), _tTotal);

    uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(
      address(this),
      uniswapV2Router.WETH()
    );

    uniswapV2Router.addLiquidityETH{value: address(this).balance}(
      address(this),
      balanceOf(address(this)),
      0,
      0,
      msg.sender,
      block.timestamp
    );

    IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint256).max);

    swapEnabled = true;
    tradingOpen = true;
  }

  receive() external payable {}

  function manualSwap() external {
    require(_msgSender() == teamWallet, "auth");

    uint256 tokenBalance = balanceOf(address(this));

    if (tokenBalance > 0) {
      swapTokensForEth(tokenBalance);
    }
    uint256 ethBalance = address(this).balance;
    if (ethBalance > 0) {
      _distributeMultisigs(ethBalance);
    }
  }

  function updateTeamWallet(address _teamWallet) external onlyOwner {
    require(_teamWallet != address(0), "address(0)");

    teamWallet = payable(_teamWallet);

    _isExcludedFromFee[teamWallet] = true;
  }
}