//SPDX-License-Identifier: MIT
pragma solidity 0.8.9;

/*
Welcome to $PEPEMON - the exciting new currency and augmented reality game that combines the popularity of Pokemon Go with the internet's favorite frog, Pepe! In this game, players can explore the real world, collect Pepe-themed creatures, and battle other players to become the ultimate $PEPEMON master.


https://pepemon.club/
https://twitter.com/PepemonERC
https://t.me/PepemonPortal
https://medium.com/@PepemonERC
*/ 

abstract contract Context {
	function _msgSender() internal view virtual returns (address) {
		return msg.sender;
	}

	function _msgData() internal view virtual returns (bytes calldata) {
		this;
		return msg.data;
	}
}

interface IUniswapV2Pair {
	event Approval(address indexed owner, address indexed spender, uint value);
	event Transfer(address indexed from, address indexed to, uint value);

	function name() external pure returns (string memory);
	function symbol() external pure returns (string memory);
	function decimals() external pure returns (uint8);
	function totalSupply() external view returns (uint);
	function balanceOf(address owner) external view returns (uint);
	function allowance(address owner, address spender) external view returns (uint);
	function approve(address spender, uint value) external returns (bool);
	function transfer(address to, uint value) external returns (bool);
	function transferFrom(address from, address to, uint value) external returns (bool);
	function DOMAIN_SEPARATOR() external view returns (bytes32);
	function PERMIT_TYPEHASH() external pure returns (bytes32);
	function nonces(address owner) external view returns (uint);
	function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;

	event Mint(address indexed sender, uint amount0, uint amount1);
	event Swap(
		address indexed sender,
		uint amount0In,
		uint amount1In,
		uint amount0Out,
		uint amount1Out,
		address indexed to
	);
	event Sync(uint112 reserve0, uint112 reserve1);

	function MINIMUM_LIQUIDITY() external pure returns (uint);
	function factory() external view returns (address);
	function token0() external view returns (address);
	function token1() external view returns (address);
	function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
	function price0CumulativeLast() external view returns (uint);
	function price1CumulativeLast() external view returns (uint);
	function kLast() external view returns (uint);
	function mint(address to) external returns (uint liquidity);
	function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
	function skim(address to) external;
	function sync() external;
	function initialize(address, address) external;
	}

interface IUniswapV2Factory {
	event PairCreated(address indexed token0, address indexed token1, address pair, uint);
	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(uint) external view returns (address pair);
	function allPairsLength() external view returns (uint);
	function createPair(address tokenA, address tokenB) external returns (address pair);
	function setFeeTo(address) external;
	function setFeeToSetter(address) external;
}

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);
}

interface IERC20Metadata is IERC20 {
	function name() external view returns (string memory);
	function symbol() external view returns (string memory);
	function decimals() external view returns (uint8);
}
contract ERC20 is Context, IERC20, IERC20Metadata {
	using SafeMath for uint256;
	mapping(address => uint256) private _balances;
	mapping(address => mapping(address => uint256)) private _allowances;
	uint256 private _totalSupply;
	string private _name;

	string private _symbol;

	constructor(string memory name_, string memory symbol_) {
		_name = name_;
		_symbol = symbol_;
	}

	function name() public view virtual override returns (string memory) {
		return _name;
	}

	function symbol() public view virtual override returns (string memory) {
		return _symbol;
	}

	function decimals() public view virtual override returns (uint8) {
		return 18;
	}

	function totalSupply() public view virtual override returns (uint256) {
		return _totalSupply;
	}

	function balanceOf(address account) public view virtual override returns (uint256) {
		return _balances[account];
	}

	function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
		_transfer(_msgSender(), recipient, amount);
		return true;
	}


	function allowance(address owner, address spender) public view virtual override returns (uint256) {
		return _allowances[owner][spender];
	}

	function approve(address spender, uint256 amount) public virtual override returns (bool) {
		_approve(_msgSender(), spender, amount);
		return true;
	}

	function transferFrom(
		address sender,
		address recipient,
		uint256 amount
	) public virtual override returns (bool) {
		_transfer(sender, recipient, amount);
		_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
		return true;
	}

	function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
		_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
		return true;
	}

	function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
		_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
		return true;

	}

	function _transfer(

		address sender,
		address recipient,
		uint256 amount
		) internal virtual {
		require(sender != address(0), "ERC20: transfer from the zero address");
		require(recipient != address(0), "ERC20: transfer to the zero address");
		_beforeTokenTransfer(sender, recipient, amount);
		_balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
		_balances[recipient] = _balances[recipient].add(amount);
		emit Transfer(sender, recipient, amount);
	}

	function _mint(address account, uint256 amount) internal virtual {
		require(account != address(0), "ERC20: mint to the zero address");

		_beforeTokenTransfer(address(0), account, amount);

		_totalSupply = _totalSupply.add(amount);
		_balances[account] = _balances[account].add(amount);

		emit Transfer(address(0), account, amount);
	}

	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);
	}

	function _beforeTokenTransfer(
		address from,
		address to,
		uint256 amount
	) internal virtual {}

}

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;
	}

	function mod(uint256 a, uint256 b) internal pure returns (uint256) {
		return mod(a, b, "SafeMath: modulo by zero");
	}
	function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
		require(b != 0, errorMessage);
		return a % b;
	}
}


contract Ownable is Context {
	address private _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 {
		require(newOwner != address(0), "Ownable: new owner is the zero address");
		emit OwnershipTransferred(_owner, newOwner);
		_owner = newOwner;
	}
}

library SafeMathInt {
	int256 private constant MIN_INT256 = int256(1) << 255;
	int256 private constant MAX_INT256 = ~(int256(1) << 255);

	function mul(int256 a, int256 b) internal pure returns (int256) {
		int256 c = a * b;
		require(c != MIN_INT256 || (a & MIN_INT256) != (b & MIN_INT256));
		require((b == 0) || (c / b == a));
		return c;
	}

	function div(int256 a, int256 b) internal pure returns (int256) {
		require(b != -1 || a != MIN_INT256);
		return a / b;
	}

	function sub(int256 a, int256 b) internal pure returns (int256) {
		int256 c = a - b;
		require((b >= 0 && c <= a) || (b < 0 && c > a));
		return c;
	}

	function add(int256 a, int256 b) internal pure returns (int256) {
		int256 c = a + b;
		require((b >= 0 && c >= a) || (b < 0 && c < a));
		return c;
	}

	function abs(int256 a) internal pure returns (int256) {
		require(a != MIN_INT256);
		return a < 0 ? -a : a;
	}
	function toUint256Safe(int256 a) internal pure returns (uint256) {
		require(a >= 0);
		return uint256(a);
	}
}

library SafeMathUint {
function toInt256Safe(uint256 a) internal pure returns (int256) {
	int256 b = int256(a);
	require(b >= 0);
	return b;
}
}


interface IUniswapV2Router01 {
	function factory() external pure returns (address);
	function WETH() external pure returns (address);
	function addLiquidity(
		address tokenA,
		address tokenB,
		uint amountADesired,
		uint amountBDesired,
		uint amountAMin,
		uint amountBMin,
		address to,
		uint deadline
	) external returns (uint amountA, uint amountB, uint liquidity);
	function addLiquidityETH(
		address token,
		uint amountTokenDesired,
		uint amountTokenMin,
		uint amountETHMin,
		address to,
		uint deadline
	) external payable returns (uint amountToken, uint amountETH, uint liquidity);
	function removeLiquidity(
		address tokenA,
		address tokenB,
		uint liquidity,
		uint amountAMin,
		uint amountBMin,
		address to,
		uint deadline
	) external returns (uint amountA, uint amountB);

	function removeLiquidityETH(
		address token,
		uint liquidity,
		uint amountTokenMin,
		uint amountETHMin,
		address to,
		uint deadline
	) external returns (uint amountToken, uint amountETH);
	function removeLiquidityWithPermit(
		address tokenA,
		address tokenB,
		uint liquidity,
		uint amountAMin,
		uint amountBMin,
		address to,
		uint deadline,
		bool approveMax, uint8 v, bytes32 r, bytes32 s
	) external returns (uint amountA, uint amountB);
	function removeLiquidityETHWithPermit(
		address token,
		uint liquidity,
		uint amountTokenMin,
		uint amountETHMin,
		address to,
		uint deadline,
		bool approveMax, uint8 v, bytes32 r, bytes32 s
	) external returns (uint amountToken, uint amountETH);
	function swapExactTokensForTokens(
		uint amountIn,
		uint amountOutMin,
		address[] calldata path,
		address to,
		uint deadline
	) external returns (uint[] memory amounts);
	function swapTokensForExactTokens(
		uint amountOut,

		uint amountInMax,
		address[] calldata path,
		address to,
		uint deadline
	) external returns (uint[] memory amounts);
	function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)
		external
		payable
		returns (uint[] memory amounts);
	function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)
		external
		returns (uint[] memory amounts);
	function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)
		external
		returns (uint[] memory amounts);
		function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline)
		external
		payable
		returns (uint[] memory amounts);
	function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB);
	function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut);
	function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn);
	function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);
	function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts);
}

interface IUniswapV2Router02 is IUniswapV2Router01 {
	function removeLiquidityETHSupportingFeeOnTransferTokens(
		address token,
		uint liquidity,
		uint amountTokenMin,
		uint amountETHMin,
		address to,
		uint deadline

	) external returns (uint amountETH);
	function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
		address token,
		uint liquidity,
		uint amountTokenMin,
		uint amountETHMin,
		address to,
		uint deadline,
		bool approveMax, uint8 v, bytes32 r, bytes32 s
	) external returns (uint amountETH);

	function swapExactTokensForTokensSupportingFeeOnTransferTokens(
		uint amountIn,
		uint amountOutMin,
		address[] calldata path,
		address to,
		uint deadline

	) external;
	function swapExactETHForTokensSupportingFeeOnTransferTokens(
		uint amountOutMin,
		address[] calldata path,
		address to,
		uint deadline
		) external payable;
	function swapExactTokensForETHSupportingFeeOnTransferTokens(
		uint amountIn,
		uint amountOutMin,
		address[] calldata path,
		address to,
		uint deadline
	) external;
}
contract Pepemon is ERC20, Ownable {
	using SafeMath for uint256;

	IUniswapV2Router02 public immutable uniswapV2Router;

	address public immutable uniswapV2Pair;

	bool private swapping;

	address public marketingWallet;
	
	uint256 public maxTransactionAmount;
	uint256 public swapTokensAtAmount;

	uint256 public maxWallet;

	bool public swapEnabled = true;

	uint256 public buyTotalFees;
	uint256 public buyMarketingFee;
	
	uint256 public sellTotalFees;
	uint256 public sellMarketingFee;
	
	uint256 public tokensForMarketing;

	mapping (address => bool) private _isExcludedFromFees;
	mapping (address => bool) public _isExcludedMaxTransactionAmount;

	mapping (address => bool) public automatedMarketMakerPairs;
	event UpdateUniswapV2Router(address indexed newAddress, address indexed oldAddress);
	event ExcludeFromFees(address indexed account, bool isExcluded);
	event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value);
	event marketingWalletUpdated(address indexed newWallet, address indexed oldWallet);
	event BuyBackTriggered(uint256 amount);

	constructor() ERC20("Pepemon", "PEPEMON") {
		address newOwner = address(owner());
		IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
		excludeFromMaxTransaction(address(_uniswapV2Router), true);
		uniswapV2Router = _uniswapV2Router;
		uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH());
		excludeFromMaxTransaction(address(uniswapV2Pair), true);
		_setAutomatedMarketMakerPair(address(uniswapV2Pair), true);
		
		uint256 _buyMarketingFee = 0;
	
		uint256 _sellMarketingFee = 25;
		
		uint256 totalSupply = 1 * 1e12 * 1e18;
		
		maxTransactionAmount = (totalSupply * 2 / 100) + (1 * 1e18);
		maxWallet = (totalSupply * 4 / 100) + (1 * 1e18);
        swapTokensAtAmount = totalSupply * 10 / 10000;

		buyMarketingFee = _buyMarketingFee;
		buyTotalFees = buyMarketingFee;
		
		sellMarketingFee = _sellMarketingFee;
		sellTotalFees = sellMarketingFee;
		
		marketingWallet = address(0x803aec561649a96464d20cBC4Cee534d9a92E3C2);

		excludeFromFees(newOwner, true);
		excludeFromFees(address(this), true);
		excludeFromFees(address(0xdead), true);
		excludeFromFees(marketingWallet, true);
		
		excludeFromMaxTransaction(newOwner, true);
		excludeFromMaxTransaction(address(this), true);
		excludeFromMaxTransaction(address(0xdead), true);
		excludeFromMaxTransaction(marketingWallet, true);

		_mint(newOwner, totalSupply);

		transferOwnership(newOwner);
	}

	receive() external payable {
	}

	function updateSwapTokensAtAmount(uint256 newAmount) external onlyOwner returns (bool){
		require(newAmount >= totalSupply() * 1 / 100000, "Swap amount cannot be lower than 0.001% total supply.");
		require(newAmount <= totalSupply() * 5 / 1000, "Swap amount cannot be higher than 0.5% total supply.");
		swapTokensAtAmount = newAmount;
		return true;
		}
	
	function updateMaxTxAmount(uint256 newNum) external onlyOwner {
		require(newNum >= (totalSupply() * 2 / 100)/1e18, "Cannot set maxTransactionAmount lower than 2%");
		maxTransactionAmount = (newNum * 1e18) + (1 * 1e18) ;
	}
	
	function updateMaxWalletAmount(uint256 newNum) external onlyOwner {
		require(newNum >= (totalSupply() * 4 / 100)/1e18, "Cannot set maxWalletAmount lower than 4%");
		maxWallet = (newNum * 1e18) + (1 * 1e18);
	}

	function removeLimits() external onlyOwner {
		maxTransactionAmount = totalSupply();
		maxWallet = totalSupply();
	}
	
	function excludeFromMaxTransaction(address updAds, bool isEx) public onlyOwner {
		_isExcludedMaxTransactionAmount[updAds] = isEx;
	}

	function updateSwapEnabled(bool enabled) external onlyOwner(){
		swapEnabled = enabled;
	}

	function updateBuyFees(uint256 _marketingFee) external onlyOwner {
		buyMarketingFee = _marketingFee;
		buyTotalFees = buyMarketingFee;
		require(buyTotalFees <= 10, "Must keep buy fees at 10% or less");
	}

	function updateSellFees(uint256 _marketingFee) external onlyOwner {
		sellMarketingFee = _marketingFee;
		sellTotalFees = sellMarketingFee;
		require(sellTotalFees <= 15, "Must keep sell fees at 15% or less");
	}

	function excludeFromFees(address account, bool excluded) public onlyOwner {
		_isExcludedFromFees[account] = excluded;
		emit ExcludeFromFees(account, excluded);
	}

	function setAutomatedMarketMakerPair(address pair, bool value) public onlyOwner {
		require(pair != uniswapV2Pair, "The pair cannot be removed from automatedMarketMakerPairs");
		_setAutomatedMarketMakerPair(pair, value);
	}

	function _setAutomatedMarketMakerPair(address pair, bool value) private {
		automatedMarketMakerPairs[pair] = value;
		emit SetAutomatedMarketMakerPair(pair, value);
	}

	function updateMarketingWallet(address newMarketingWallet) external onlyOwner {
		emit marketingWalletUpdated(newMarketingWallet, marketingWallet);
		marketingWallet = newMarketingWallet;
	}

	function isExcludedFromFees(address account) public view returns(bool) {
		return _isExcludedFromFees[account];
	}

	function _transfer(
		address from,
		address to,
		uint256 amount
	) internal override {
		require(from != address(0), "ERC20: transfer from the zero address");
		require(to != address(0), "ERC20: transfer to the zero address");
		
		if(amount == 0) {
			super._transfer(from, to, 0);
			return;
		}
			if (
				from != owner() &&

				to != owner() &&
				to != address(0) &&
				to != address(0xdead) &&
				!swapping
			){
				// buy transaction
				if (automatedMarketMakerPairs[from] && !_isExcludedMaxTransactionAmount[to]) {
						require(amount <= maxTransactionAmount, "Buy transfer amount exceeds the maxTransactionAmount.");
						require(amount + balanceOf(to) <= maxWallet, "Max wallet exceeded");

				}
				
				//sell transaction
				else if (automatedMarketMakerPairs[to] && !_isExcludedMaxTransactionAmount[from]) {
						require(amount <= maxTransactionAmount, "Sell transfer amount exceeds the maxTransactionAmount.");
				}
			}
		uint256 contractTokenBalance = balanceOf(address(this));
		bool canSwap = contractTokenBalance >= swapTokensAtAmount;

		if( 
			canSwap &&
			swapEnabled &&
			!swapping &&
			!automatedMarketMakerPairs[from] &&
			!_isExcludedFromFees[from] &&
			!_isExcludedFromFees[to]
		) {
			swapping = true; 
			swapBack();
			swapping = false;
		}
		bool takeFee = !swapping;


		if(_isExcludedFromFees[from] || _isExcludedFromFees[to]) {
			takeFee = false;
		}
		uint256 fees = 0;
		if(takeFee){
			if (automatedMarketMakerPairs[to] && sellTotalFees > 0){
				fees = amount.mul(sellTotalFees).div(100);
				tokensForMarketing += fees * sellMarketingFee / sellTotalFees;
			}
			else if(automatedMarketMakerPairs[from] && buyTotalFees > 0) {
				fees = amount.mul(buyTotalFees).div(100);
				tokensForMarketing += fees * buyMarketingFee / buyTotalFees;
			}
			
			if(fees > 0){    
				super._transfer(from, address(this), (fees));
			}
			amount -= fees;
		}
		super._transfer(from, to, amount);
	}

	function swapTokensForEth(uint256 tokenAmount) private {
		address[] memory path = new address[](2);
		path[0] = address(this);

		path[1] = uniswapV2Router.WETH();
		_approve(address(this), address(uniswapV2Router), tokenAmount);
		uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
			tokenAmount,
			0,
			path,
			address(this),
			block.timestamp
		);
	}

	function swapBack() private {
		uint256 contractBalance = balanceOf(address(this));
		uint256 totalTokensToSwap = tokensForMarketing;
		
		if(contractBalance == 0 || totalTokensToSwap == 0) {return;}
		uint256 amountToSwapForETH = contractBalance;
		uint256 initialETHBalance = address(this).balance;
		swapTokensForEth(amountToSwapForETH); 
		uint256 ethBalance = address(this).balance.sub(initialETHBalance);
		uint256 ethForMarketing = ethBalance.mul(tokensForMarketing).div(totalTokensToSwap);

		tokensForMarketing = 0;
		
		(bool success,) = address(marketingWallet).call{value: ethForMarketing}("");
		(success,) = address(marketingWallet).call{value: address(this).balance}("");
	}
	
}