// File: src/Punk.sol



// Cypherpunk

// Website: https://thepunklist.com
// Twitter: https://twitter.com/cypherpunk_eth
// Telegram: https://t.me/thepunklist

// SPDX-License-Identifier:MIT
pragma solidity ^0.8.18;

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);
}

// Dex Factory contract interface
interface IDexFactory {
	function createPair(address tokenA, address tokenB) external returns (address pair);
}

// Dex Router contract interface
interface IDexRouter {
	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);

	function swapExactTokensForETHSupportingFeeOnTransferTokens(
		uint256 amountIn,
		uint256 amountOutMin,
		address[] calldata path,
		address to,
		uint256 deadline
	) external;
}

abstract contract Context {
	function _msgSender() internal view virtual returns (address payable) {
		return payable(msg.sender);
	}

	function _msgData() internal view virtual returns (bytes memory) {
		this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
		return msg.data;
	}
}

contract Ownable is Context {
	address private _owner;

	event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

	constructor() {
		_owner = _msgSender();
		emit OwnershipTransferred(address(0), _owner);
	}

	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 = payable(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;
	}
}

contract Punk is Context, IERC20, Ownable {
	string private _name = "The Punk List";
	string private _symbol = "PUNK";
	uint8 private _decimals = 18;
	uint256 private _totalSupply = 1_100_000 * 1e18;

	mapping(address => uint256) private _balances;
	mapping(address => mapping(address => uint256)) private _allowances;
	mapping(address => bool) private _bots;

	mapping(address => bool) public isExcludedFromFee;
	mapping(address => bool) public isExcludedFromMaxTxn;
	mapping(address => bool) public isExcludedFromMaxHolding;

	uint256 public minTokenToSwap = (_totalSupply * 5) / (10000); // this amount will trigger swap and distribute
	uint256 public maxHoldLimit = (_totalSupply * 2) / (100); // this is the max wallet holding limit
	uint256 public maxTxnLimit = (_totalSupply * 2) / (100); // this is the max transaction limit
	uint256 public percentDivider = 100;
	uint256 public launchedAt;

	bool public distributeAndLiquifyStatus; // should be true to turn on to liquidate the pool
	bool public feesStatus; // enable by default
	bool public trading; // once enable can't be disable afterwards

	IDexRouter public dexRouter; // router declaration

	address public dexPair; // pair address declaration
	address public marketingWallet; // marketing address declaration
	address private constant DEAD = address(0xdead);
	address private constant ZERO = address(0);

	uint256 public marketingFeeOnBuying = 30;

	uint256 public marketingFeeOnSelling = 30;

	event SwapAndLiquify(uint256 tokensSwapped, uint256 ethReceived, uint256 tokensIntoLiqudity);

	constructor(address _marketingWallet) {
		_balances[owner()] = _totalSupply;
		marketingWallet = address(_marketingWallet);

		dexRouter = IDexRouter(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
		isExcludedFromFee[address(dexRouter)] = true;
		isExcludedFromMaxTxn[address(dexRouter)] = true;
		isExcludedFromMaxHolding[address(dexRouter)] = true;

		dexPair = IDexFactory(dexRouter.factory()).createPair(address(this), dexRouter.WETH());
		isExcludedFromMaxHolding[dexPair] = true;

		//exclude owner and this contract from fee
		isExcludedFromFee[owner()] = true;
		isExcludedFromFee[address(this)] = true;

		//exclude owner and this contract from max Txn
		isExcludedFromMaxTxn[owner()] = true;
		isExcludedFromMaxTxn[address(this)] = true;

		//exclude owner and this contract from max hold limit
		isExcludedFromMaxHolding[owner()] = true;
		isExcludedFromMaxHolding[address(this)] = true;
		isExcludedFromMaxHolding[marketingWallet] = true;

		emit Transfer(address(0), owner(), _totalSupply);
	}

	//to receive ETH from dexRouter when swapping
	receive() external payable {}

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

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

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

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

	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()] - amount);
		return true;
	}

	function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
		_approve(_msgSender(), spender, _allowances[_msgSender()][spender] + (addedValue));
		return true;
	}

	function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
		_approve(_msgSender(), spender, _allowances[_msgSender()][spender] - subtractedValue);
		return true;
	}

	function includeOrExcludeFromFee(address account, bool value) external onlyOwner {
		isExcludedFromFee[account] = value;
	}

	function includeOrExcludeFromMaxTxn(address account, bool value) external onlyOwner {
		isExcludedFromMaxTxn[account] = value;
	}

	function includeOrExcludeFromMaxHolding(address account, bool value) external onlyOwner {
		isExcludedFromMaxHolding[account] = value;
	}

	function setMinTokenToSwap(uint256 _amount) external onlyOwner {
		minTokenToSwap = _amount * 1e18;
	}

	function setMaxHoldLimit(uint256 _amount) external onlyOwner {
		maxHoldLimit = _amount * 1e18;
	}

	function setMaxTxnLimit(uint256 _amount) external onlyOwner {
		maxTxnLimit = _amount * 1e18;
	}

	function setBuyFeePercent(uint256 _marketingFee) external onlyOwner {
		marketingFeeOnBuying = _marketingFee;
	}

	function setSellFeePercent(uint256 _marketingFee) external onlyOwner {
		marketingFeeOnSelling = _marketingFee;
	}

	function setDistributionStatus(bool _value) public onlyOwner {
		distributeAndLiquifyStatus = _value;
	}

	function enableOrDisableFees(bool _value) external onlyOwner {
		feesStatus = _value;
	}

	function updateAddresses(address _marketingWallet) external onlyOwner {
		marketingWallet = _marketingWallet;
	}

	function enableTrading() external onlyOwner {
		require(!trading, ": already enabled");

		trading = true;
		feesStatus = true;
		distributeAndLiquifyStatus = true;
		launchedAt = block.timestamp;
	}

	function removeStuckEth(address _receiver) public onlyOwner {
		payable(_receiver).transfer(address(this).balance);
	}

	function totalBuyFeePerTx(uint256 amount) public view returns (uint256) {
		uint256 fee = (amount * marketingFeeOnBuying) / (percentDivider);
		return fee;
	}

	function totalSellFeePerTx(uint256 amount) public view returns (uint256) {
		uint256 fee = (amount * marketingFeeOnSelling) / (percentDivider);
		return fee;
	}

	function _approve(address owner, address spender, uint256 amount) private {
		require(owner != address(0), " approve from the zero address");
		require(spender != address(0), "approve to the zero address");

		_allowances[owner][spender] = amount;
		emit Approval(owner, spender, amount);
	}

	function _transfer(address from, address to, uint256 amount) private {
		require(!_bots[from] && !_bots[to] && !_bots[msg.sender], "Blacklisted");

		require(from != address(0), "transfer from the zero address");
		require(to != address(0), "transfer to the zero address");
		require(amount > 0, "Amount must be greater than zero");

		if (!isExcludedFromMaxTxn[from] && !isExcludedFromMaxTxn[to]) {
			require(amount <= maxTxnLimit, " max txn limit exceeds");

			// trading disable till launch
			if (!trading) {
				require(dexPair != from && dexPair != to, ": trading is disable");
			}
		}

		if (!isExcludedFromMaxHolding[to]) {
			require((balanceOf(to) + amount) <= maxHoldLimit, ": max hold limit exceeds");
		}

		// swap and liquify
		distributeAndLiquify(from, to);

		//indicates if fee should be deducted from transfer
		bool takeFee = true;

		//if any account belongs to isExcludedFromFee account then remove the fee
		if (isExcludedFromFee[from] || isExcludedFromFee[to] || !feesStatus) {
			takeFee = false;
		}

		//transfer amount, it will take tax, burn, liquidity fee
		_tokenTransfer(from, to, amount, takeFee);
	}

	//this method is responsible for taking all fees, if takeFee is true
	function _tokenTransfer(address sender, address recipient, uint256 amount, bool takeFee) private {
		if (dexPair == sender && takeFee) {
			uint256 allFee;
			uint256 tTransferAmount;
			allFee = totalBuyFeePerTx(amount);
			tTransferAmount = amount - allFee;

			_balances[sender] = _balances[sender] - amount;
			_balances[recipient] = _balances[recipient] + tTransferAmount;
			emit Transfer(sender, recipient, tTransferAmount);

			takeTokenFee(sender, allFee);
		} else if (dexPair == recipient && takeFee) {
			uint256 allFee = totalSellFeePerTx(amount);
			uint256 tTransferAmount = amount - allFee;
			_balances[sender] = _balances[sender] - amount;
			_balances[recipient] = _balances[recipient] + tTransferAmount;
			emit Transfer(sender, recipient, tTransferAmount);

			takeTokenFee(sender, allFee);
		} else {
			_balances[sender] = _balances[sender] - amount;
			_balances[recipient] = _balances[recipient] + (amount);
			emit Transfer(sender, recipient, amount);
		}
	}

	function takeTokenFee(address sender, uint256 amount) private {
		_balances[address(this)] = _balances[address(this)] + (amount);

		emit Transfer(sender, address(this), amount);
	}

	// to withdarw ETH from contract
	function withdrawETH(uint256 _amount) external onlyOwner {
		require(address(this).balance >= _amount, "Invalid Amount");
		payable(msg.sender).transfer(_amount);
	}

	// to withdraw ERC20 tokens from contract
	function withdrawToken(IERC20 _token, uint256 _amount) external onlyOwner {
		require(_token.balanceOf(address(this)) >= _amount, "Invalid Amount");
		_token.transfer(msg.sender, _amount);
	}

	function distributeAndLiquify(address from, address to) private {
		uint256 contractTokenBalance = balanceOf(address(this));

		bool shouldSell = contractTokenBalance >= minTokenToSwap;

		if (
			shouldSell && from != dexPair && distributeAndLiquifyStatus && !(from == address(this) && to == dexPair) // swap 1 time
		) {
			// approve contract
			_approve(address(this), address(dexRouter), minTokenToSwap);

			// now is to lock into liquidty pool
			swapTokensForEth(minTokenToSwap);
			uint256 ethForMarketing = address(this).balance;

			// sending Eth to Marketing wallet
			if (ethForMarketing > 0) payable(marketingWallet).transfer(ethForMarketing);
		}
	}

	function swapTokensForEth(uint256 tokenAmount) internal {
		// generate the Dex pair path of token -> weth
		address[] memory path = new address[](2);
		path[0] = address(this);
		path[1] = dexRouter.WETH();

		// make the swap
		dexRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(
			tokenAmount,
			0, // accept any amount of ETH
			path,
			address(this),
			block.timestamp + 300
		);
	}

	function manageBots(address[] memory _accounts, bool _isBot) external onlyOwner {
		for (uint256 i = 0; i < _accounts.length; i++) {
			_bots[_accounts[i]] = _isBot;
		}
	}
}