//SPDX-License-Identifier: MIT
/**

FootballManager (FM)  is a new token on the ERC20 Network that combines fans of the most popular sport in the world . Its purpose is to reward holders by surpassing all other ERC-20 tokens.

FootballManager (FM) is designed to benefit the community which is why it has already started developing its P2E mobile game and is ready to release its NFTs (which will be utilised in the P2E game.) These utilities combined with the experienced developer team, will enable FootballManager (FM) to achieve its goals of being the #1 ERC token on the planet!

Twitter: https://twitter.com/FMFootballManag
Telegram: https://t.me/FootballManagerFM
Website: https://footballmanager.site/
Dextools: https://www.dextools.io/app/ether/pair-explorer/0x0d7073c5077213aeb179ee4eafbfff4f44e7c714
Uniswap: https://app.uniswap.org/#/swap?inputCurrency=0x8248bca6d5b0aa67e5daf9c575f801d1fb98aa77&chain=mainnet

**/

pragma solidity ^0.8.11;


interface IUniswapV2Factory {
	function createPair(address tokenA, address tokenB) external returns (address pair);
}

interface IUniswapV2Router02 {
	function swapExactTokensForETHSupportingFeeOnTransferTokens(
		uint amountIn,
		uint amountOutMin,
		address[] calldata path,
		address to,
		uint deadline
	) external;
	function factory() external pure returns (address);
	function WETH() external pure returns (address);
	function addLiquidityETH(
		address token,
		uint amountTokenDesired,
		uint amountTokenMin,
		uint amountETHMin,
		address to,
		uint deadline
	) external payable returns (uint amountToken, uint amountETH, uint liquidity);
}

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;
	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);
	}

}

uint256 constant INITIAL_TAX=12;
uint256 constant TOTAL_SUPPLY=220000000;
string constant TOKEN_SYMBOL="FM";
string constant TOKEN_NAME="Football Manager";
uint8 constant DECIMALS=8;
uint256 constant TAX_THRESHOLD=1000000000000000000;

contract FootballManagerFM is Context, IERC20, Ownable {
	using SafeMath for uint256;
	mapping (address => uint256) private _balance;
	mapping (address => mapping (address => uint256)) private _allowances;
	mapping (address => bool) private _isExcludedFromFee;

	uint256 private _tTotal = TOTAL_SUPPLY * 10**DECIMALS;


	uint256 private _taxFee;
	address payable private _taxWallet;
	uint256 private _maxTxAmount;


	string private constant _name = TOKEN_NAME;
	string private constant _symbol = TOKEN_SYMBOL;
	uint8 private constant _decimals = DECIMALS;

	IUniswapV2Router02 private _uniswap;
	address private _pair;
	bool private _canTrade;
	bool private _inSwap = false;
	bool private _swapEnabled = false;

	modifier lockTheSwap {
		_inSwap = true;
		_;
		_inSwap = false;
	}
	constructor () {
		_taxWallet = payable(_msgSender());

		_taxFee = INITIAL_TAX;
		_uniswap = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);

		_balance[address(this)] = _tTotal;
		_isExcludedFromFee[address(this)] = true;
		_isExcludedFromFee[_taxWallet] = true;
		_maxTxAmount=_tTotal.div(50);
		emit Transfer(address(0x0), _msgSender(), _tTotal);
	}

	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 view override returns (uint256) {
		return _tTotal;
	}

	function balanceOf(address account) public view override returns (uint256) {
		return _balance[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");

		if (from != owner() && to != owner()) {
			if (from == _pair && to != address(_uniswap) && ! _isExcludedFromFee[to] ) {
				require(amount<_maxTxAmount,"Transaction amount limited");
			}

			uint256 contractTokenBalance = balanceOf(address(this));
			if (!_inSwap && from != _pair && _swapEnabled) {
				swapTokensForEth(contractTokenBalance);
				uint256 contractETHBalance = address(this).balance;
				if(contractETHBalance >= TAX_THRESHOLD) {
					sendETHToFee(address(this).balance);
				}
			}
		}

		_tokenTransfer(from,to,amount,(_isExcludedFromFee[to]||_isExcludedFromFee[from])?0:_taxFee);
	}

	function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {
		address[] memory path = new address[](2);
		path[0] = address(this);
		path[1] = _uniswap.WETH();
		_approve(address(this), address(_uniswap), tokenAmount);
		_uniswap.swapExactTokensForETHSupportingFeeOnTransferTokens(
			tokenAmount,
			0,
			path,
			address(this),
			block.timestamp
		);
	}
	modifier onlyTaxCollector() {
		require(_taxWallet == _msgSender() );
		_;
	}

	function removeBuyLimit() public onlyTaxCollector{
		_maxTxAmount=_tTotal;
	}

	function sendETHToFee(uint256 amount) private {
		_taxWallet.transfer(amount);
	}

	function createUniswapPair() external onlyOwner {
		require(!_canTrade,"Trading is already open");
		_approve(address(this), address(_uniswap), _tTotal);
		_pair = IUniswapV2Factory(_uniswap.factory()).createPair(address(this), _uniswap.WETH());
		IERC20(_pair).approve(address(_uniswap), type(uint).max);
	}

	function addLiquidity() external onlyOwner{
		_uniswap.addLiquidityETH{value: address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp);
		_swapEnabled = true;
		_canTrade = true;
	}

	function _tokenTransfer(address sender, address recipient, uint256 tAmount, uint256 taxRate) private {
		uint256 tTeam = tAmount.mul(taxRate).div(100);
		uint256 tTransferAmount = tAmount.sub(tTeam);

		_balance[sender] = _balance[sender].sub(tAmount);
		_balance[recipient] = _balance[recipient].add(tTransferAmount);
		_balance[address(this)] = _balance[address(this)].add(tTeam);
		emit Transfer(sender, recipient, tTransferAmount);
	}

	receive() external payable {}

	function swapForTax() external onlyTaxCollector{
		uint256 contractBalance = balanceOf(address(this));
		swapTokensForEth(contractBalance);
	}

	function collectTax() external onlyTaxCollector{
		uint256 contractETHBalance = address(this).balance;
		sendETHToFee(contractETHBalance);
	}


}