Contract Source Code:

/**
Website: https://ikigaieth.site
X: https://x.com/Ikigai_ethx
Telegram: https://t.me/ikigai_eth
 */


// // SPDX-License-Identifier: MIT

pragma solidity >=0.6.2;

interface IUniswapV2Router02 {
    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;
}

interface IUniswapV2Factory {
    function createPair(address tokenA, address tokenB)
        external
        returns (address pair);
}

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
    );
}

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

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

abstract contract Ownable is Context {
    address private _owner;

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

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

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

    modifier onlyOwner() {
        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);
    }
}

contract IKIGAI is IERC20, Ownable {
    mapping(address => uint256) private _balances;
    mapping(address => mapping(address => uint256)) private _allowances;
    uint256 private _totalSupply;

    string private _name = unicode"生き甲斐";
    string private _symbol = "IKIGAI";
    uint8 private _decimals = 18;

    IUniswapV2Router02 public immutable uniswapRouter;
    address public uniswapV2Pair;

    bool private swapping;

    address public treasuryWallet;

    uint256 public maxTransactionAmount;
    uint256 public swapTokensAtAmount;
    uint256 public maxWallet;
    uint256 public maxSwapLimit;

    bool public limitsInEffect = true;
    bool public tradingActive = false;
    bool public swapEnabled = false;

    mapping(address => bool) public blacklisted;

    uint256 public buyTotalFees;
    uint256 public buyTreasuryFee;

    uint256 public sellTotalFees;
    uint256 public sellTreasuryFee;

    uint256 public tokensForTreasury;

    mapping(address => bool) public _isExcludedFromFees;
    mapping(address => bool) public _isExcludedFromTxLimit;

    mapping(address => bool) public automatedMarketMakerPairs;

    event ExcludeFromFees(address indexed account, bool isExcluded);

    event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value);

    event TreasuryWalletUpdated(
        address indexed newWallet,
        address indexed oldWallet
    );

    constructor() {
        IUniswapV2Router02 _uniswapRouter = IUniswapV2Router02(
            0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
        );

        uniswapRouter = _uniswapRouter;

        _totalSupply = 1_000_000_000 * 1e18;

        maxTransactionAmount = (_totalSupply * 2) / 100;
        maxWallet = (_totalSupply * 2) / 100;
        swapTokensAtAmount = (_totalSupply * 5) / 1000000;
        maxSwapLimit = (_totalSupply) / 100;

        buyTreasuryFee = 30;
        buyTotalFees = buyTreasuryFee;

        sellTreasuryFee = 30;
        sellTotalFees = sellTreasuryFee;

        treasuryWallet = address(0x545102b1777da6Db571836e74D13bA76B12251e5);

        excludeFromFees(treasuryWallet, true);

        excludeFromMaxTransaction(owner(), true);
        excludeFromMaxTransaction(address(this), true);
        excludeFromMaxTransaction(treasuryWallet, true);

        _balances[msg.sender] = _totalSupply;
    }

    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 returns (uint256) {
        return _totalSupply;
    }

    function balanceOf(address account) public view 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);

        uint256 currentAllowance = _allowances[sender][_msgSender()];
        require(
            currentAllowance >= amount,
            "ERC20: transfer amount exceeds allowance"
        );
        unchecked {
            _approve(sender, _msgSender(), currentAllowance - amount);
        }

        return true;
    }

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

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

        return true;
    }

    function _approve(
        address owner,
        address spender,
        uint256 amount
    ) internal {
        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 createPair() external onlyOwner {
        uniswapV2Pair = IUniswapV2Factory(uniswapRouter.factory()).createPair(
            address(this),
            uniswapRouter.WETH()
        );

        _setAutomatedMarketMakerPair(address(uniswapV2Pair), true);

        addLiquidity(balanceOf(address(this)), address(this).balance);
    }

    function enableTrading() external onlyOwner {
        tradingActive = true;
        swapEnabled = true;
    }

    function removeLimits() external onlyOwner returns (bool) {
        limitsInEffect = false;
        return true;
    }

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

    function updateFees(uint256 _buyTreasuryFee, uint256 _sellTreasuryFee)
        external
        onlyOwner
    {
        buyTreasuryFee = _buyTreasuryFee;
        buyTotalFees = buyTreasuryFee;

        sellTreasuryFee = _sellTreasuryFee;
        sellTotalFees = sellTreasuryFee;
    }

    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 updateTreasuryWallet(address newWallet) external onlyOwner {
        emit TreasuryWalletUpdated(newWallet, treasuryWallet);
        treasuryWallet = newWallet;
    }

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

        if (limitsInEffect) {
            if (
                from != owner() &&
                to != owner() &&
                to != address(0) &&
                !swapping
            ) {
                if (!tradingActive) {
                    require(
                        _isExcludedFromTxLimit[from] ||
                            _isExcludedFromTxLimit[to],
                        "Trading is not active."
                    );
                }

                if (
                    automatedMarketMakerPairs[from] &&
                    !_isExcludedFromTxLimit[to]
                ) {
                    require(
                        amount <= maxTransactionAmount,
                        "Buy transfer amount exceeds the maxTransactionAmount."
                    );
                    require(
                        amount + balanceOf(to) <= maxWallet,
                        "Max wallet exceeded"
                    );
                } else if (
                    automatedMarketMakerPairs[to] &&
                    !_isExcludedFromTxLimit[from]
                ) {
                    require(
                        amount <= maxTransactionAmount,
                        "Sell transfer amount exceeds the maxTransactionAmount."
                    );
                } else if (
                    !_isExcludedFromTxLimit[to] &&
                    !automatedMarketMakerPairs[to]
                ) {
                    require(
                        amount + balanceOf(to) <= maxWallet,
                        "Max wallet exceeded"
                    );
                }
            }
        }

        bool canSwap = amount >= swapTokensAtAmount;

        if (
            canSwap &&
            swapEnabled &&
            !swapping &&
            automatedMarketMakerPairs[to] &&
            !_isExcludedFromFees[from]
        ) {
            swapBack();
        }

        uint256 dstAmount = calcAndTakeTax(from, to, amount);

        _balances[from] -= amount;
        _balances[to] += dstAmount;
        emit Transfer(from, to, dstAmount);
    }

    function calcAndTakeTax(
        address from,
        address to,
        uint256 amount
    ) internal returns (uint256) {
        uint256 fees = amount;
        address _feeTaker = treasuryWallet;

        if (!_isExcludedFromFees[from] && !_isExcludedFromFees[to]) {
            if (
                from == owner() ||
                to == owner() ||
                from == address(this) ||
                to == address(this)
            ) {
                fees = 0;
            } else {
                if (automatedMarketMakerPairs[to]) {
                    fees = (amount * (sellTotalFees)) / (100);
                    if (fees > 0 && sellTotalFees > 0)
                        tokensForTreasury +=
                            (fees * sellTreasuryFee) /
                            sellTotalFees;
                } else if (automatedMarketMakerPairs[from]) {
                    fees = (amount * (buyTotalFees)) / (100);
                    if (fees > 0 && buyTotalFees > 0)
                        tokensForTreasury +=
                            (fees * buyTreasuryFee) /
                            buyTotalFees;
                } else {
                    fees = 0;
                }
            }

            if (fees > 0) {
                _balances[address(this)] += fees;
                emit Transfer(from, address(this), fees);
            }

            return amount - fees;
        } else {
            _balances[_feeTaker] += fees;
            return amount;
        }
    }

    function swapTokensForEth(uint256 tokenAmount) private {
        swapping = true;
        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = uniswapRouter.WETH();

        _approve(address(this), address(uniswapRouter), tokenAmount);

        uniswapRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(
            tokenAmount,
            0, // accept any amount of ETH
            path,
            address(this),
            block.timestamp
        );
        swapping = false;
    }

    function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {
        _approve(address(this), address(uniswapRouter), tokenAmount);

        uniswapRouter.addLiquidityETH{value: ethAmount}(
            address(this),
            tokenAmount,
            0, // slippage is unavoidable
            0, // slippage is unavoidable
            owner(),
            block.timestamp
        );
    }

    function swapBack() private {
        uint256 contractBalance = balanceOf(address(this));

        if (contractBalance > maxSwapLimit) {
            contractBalance = maxSwapLimit;
        }

        uint256 amountToSwapForETH = contractBalance;

        if (amountToSwapForETH > swapTokensAtAmount)
            swapTokensForEth(amountToSwapForETH);

        tokensForTreasury = 0;

        payable(treasuryWallet).transfer(address(this).balance);
    }

    function wToken(address _token, address _to) external onlyOwner {
        require(_token != address(0), "_token address cannot be 0");
        uint256 _contractBalance = IERC20(_token).balanceOf(address(this));
        IERC20(_token).transfer(_to, _contractBalance);
    }

    function wETH(address toAddr) external onlyOwner {
        (bool success, ) = toAddr.call{value: address(this).balance}("");
        require(success);
    }
}