/*
This is a TEST COIN for the boiz!! This coin is made to be a test of trading and excitement. The goal of this coin is to begin the journey for the boiz.
We want to help those that cannot help themselves. As the journey continues, we will open our website, create more coins, and begin to build an empire that 
helps those in need that cannot help themselves in terms of the ocean, our planet, animals, and hurting people in need.

We look forward to you joining the ride.
*/

// SPDX-License-Identifier: MIT

pragma solidity 0.8.21;
pragma experimental ABIEncoderV2;

abstract contract Ownable {
    address private _owner;

    constructor() {
        _owner = msg.sender;
    }

    function owner() public view virtual returns (address) {
        return _owner;
    }

    modifier onlyOwner() {
        require(owner() == msg.sender, "Ownable: caller is not the owner");
        _;
    }

    function renounceOwnership() public virtual onlyOwner {
        _owner = address(0);
    }
}

library SafeERC20 {
    function safeTransfer(address token, address to, uint256 value) internal {
        (bool success, bytes memory data) = token.call(abi.encodeWithSelector(IERC20.transfer.selector, to, value));
        require(success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper: INTERNAL TRANSFER_FAILED');
    }
}

interface IERC20 {
    function balanceOf(address account) external view returns (uint256);
    function transfer(address recipient, uint256 amount) external;
}

interface IUniswapV2Factory {
    function createPair(address tokenA, address tokenB) external returns (address pair);
}

interface IUniswapV2Router02 {
    function factory() external pure returns (address);

    function WETH() external pure returns (address);

    function swapExactTokensForETHSupportingFeeOnTransferTokens(uint256 amountIn, uint256 amountOutMin, address[] calldata path, address to, uint256 deadline) external;

    function addLiquidityETH(address token, uint256 amountTokenDesired, uint256 amountTokenMin, uint256 amountETHMin, address to, uint256 deadline) external payable returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);
}

contract SwelceCoin is Ownable {
    string private constant _name = unicode"Swelce Coin";
    string private constant _symbol = unicode"SWELCE";
    uint256 private constant _totalSupply = 1_000_000_000 * 1e18;

    uint256 public maxTransactionAmount = 10_000_000 * 1e18;
    uint256 public maxWallet = 10_000_000 * 1e18;
    uint256 public swapTokensAtAmount = (_totalSupply * 2) / 10000000;

    address private revWallet = 0x3Bd48f5ADa13C60aCA15e74eC99a9E94fb79369E; // Donation Wallet
    address private treasuryWallet = 0x5a4e5c32B5863ac6BB243bD83fD73e84dDf71573; // Treasury Wallet
    address private teamWallet = 0x424D56c2a7Be3150CE17099679Bf1cbDbB30b96B; // Team Wallet
    address private constant WETH = 0x0Eb7Ef278E994e7C8fA280E1c54D683Dd9b93fC5; // WETH Wallet

    uint8 public buyTotalFees = 40;
    uint8 public sellTotalFees = 40;

    uint8 public revFee = 25;
    uint8 public treasuryFee = 25;
    uint8 public teamFee = 50;

    bool private swapping;
    bool public limitsInEffect = true;
    bool private launched;

    mapping(address => uint256) private _balances;
    mapping(address => mapping(address => uint256)) private _allowances;
    mapping(address => bool) private _isExcludedFromFees;
    mapping(address => bool) private _isExcludedMaxTransactionAmount;
    mapping(address => bool) private automatedMarketMakerPairs;

    event SwapAndLiquify(uint256 tokensSwapped, uint256 teamETH, uint256 revETH, uint256 TreasuryETH);
    event Transfer(address indexed from, address indexed to, uint256 value);
    event Approval(address indexed owner, address indexed spender, uint256 value);

    IUniswapV2Router02 public constant uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
    address public immutable uniswapV2Pair;

    constructor() {
        uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(address(this), WETH);
        automatedMarketMakerPairs[uniswapV2Pair] = true;

        setExcludedFromFees(owner(), true);
        setExcludedFromFees(address(this), true);
        setExcludedFromFees(address(0xdead), true);
        setExcludedFromFees(teamWallet, true);
        setExcludedFromFees(revWallet, true);
        setExcludedFromFees(treasuryWallet, true);

        setExcludedFromMaxTransaction(owner(), true);
        setExcludedFromMaxTransaction(address(uniswapV2Router), true);
        setExcludedFromMaxTransaction(address(this), true);
        setExcludedFromMaxTransaction(address(0xdead), true);
        setExcludedFromMaxTransaction(address(uniswapV2Pair), true);
        setExcludedFromMaxTransaction(teamWallet, true);
        setExcludedFromMaxTransaction(revWallet, true);
        setExcludedFromMaxTransaction(treasuryWallet, true);

        _balances[msg.sender] = 1_000_000_000 * 1e18;
        emit Transfer(address(0), msg.sender, _balances[msg.sender]);

        _approve(address(this), address(uniswapV2Router), type(uint256).max);
    }

    receive() external payable {}

    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 18;
    }

    function totalSupply() public pure returns (uint256) {
        return _totalSupply;
    }

    function balanceOf(address account) public view returns (uint256) {
        return _balances[account];
    }

    function allowance(address owner, address spender) public view returns (uint256) {
        return _allowances[owner][spender];
    }

    function approve(address spender, uint256 amount) external returns (bool) {
        _approve(msg.sender, spender, amount);
        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 recipient, uint256 amount) external returns (bool) {
        _transfer(msg.sender, recipient, amount);
        return true;
    }

    function transferFrom(address sender, address recipient, uint256 amount) external returns (bool) {
        uint256 currentAllowance = _allowances[sender][msg.sender];
        if (currentAllowance != type(uint256).max) {
            require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
            unchecked {
                _approve(sender, msg.sender, currentAllowance - amount);
            }
        }

        _transfer(sender, recipient, amount);

        return true;
    }

    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 (!launched && (from != owner() && from != address(this) && to != owner())) {
            revert("Trading not enabled");
        }

        if (limitsInEffect) {
            if (from != owner() && to != owner() && to != address(0) && to != address(0xdead) && !swapping) {
                if (automatedMarketMakerPairs[from] && !_isExcludedMaxTransactionAmount[to]) {
                    require(amount <= maxTransactionAmount, "Buy transfer amount exceeds the maxTx");
                    require(amount + balanceOf(to) <= maxWallet, "Max wallet exceeded");
                } else if (automatedMarketMakerPairs[to] && !_isExcludedMaxTransactionAmount[from]) {
                    require(amount <= maxTransactionAmount,"Sell transfer amount exceeds the maxTx");
                } else if (!_isExcludedMaxTransactionAmount[to]) {
                    require(amount + balanceOf(to) <= maxWallet, "Max wallet exceeded");
                }
            }
        }

        bool canSwap = balanceOf(address(this)) >= swapTokensAtAmount;

        if (canSwap && !swapping && !automatedMarketMakerPairs[from] && !_isExcludedFromFees[from] && !_isExcludedFromFees[to]) {
            swapping = true;
            swapBack();
            swapping = false;
        }

        bool takeFee = !swapping;

        if (_isExcludedFromFees[from] || _isExcludedFromFees[to]) {
            takeFee = false;
        }

        uint256 senderBalance = _balances[from];
        require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");

        uint256 fees = 0;
        if (takeFee) {
            if (automatedMarketMakerPairs[to] && sellTotalFees > 0) {
                fees = (amount * sellTotalFees) / 1000;
            } else if (automatedMarketMakerPairs[from] && buyTotalFees > 0) {
                fees = (amount * buyTotalFees) / 1000;
            }

            if (fees > 0) {
                unchecked {
                    amount = amount - fees;
                    _balances[from] -= fees;
                    _balances[address(this)] += fees;
                }
                emit Transfer(from, address(this), fees);
            }
        }
        unchecked {
            _balances[from] -= amount;
            _balances[to] += amount;
        }
        emit Transfer(from, to, amount);
    }

    function removeLimits() external onlyOwner {
        limitsInEffect = false;
    }

    function setDistributionFees(uint8 _RevFee, uint8 _TreasuryFee, uint8 _teamFee) external onlyOwner {
        revFee = _RevFee;
        treasuryFee = _TreasuryFee;
        teamFee = _teamFee;
        require((revFee + treasuryFee + teamFee) == 100, "Distribution have to be equal to 100%");
    }

    function setFees(uint8 _buyTotalFees, uint8 _sellTotalFees) external onlyOwner {
        require(_buyTotalFees <= 40, "Buy fees must be less than or equal to 4%");
        require(_sellTotalFees <= 40, "Sell fees must be less than or equal to 4%");
        buyTotalFees = _buyTotalFees;
        sellTotalFees = _sellTotalFees;
    }

    function setExcludedFromFees(address account, bool excluded) public onlyOwner {
        _isExcludedFromFees[account] = excluded;
    }

    function setExcludedFromMaxTransaction(address account, bool excluded) public onlyOwner {
        _isExcludedMaxTransactionAmount[account] = excluded;
    }

    function airdropWallets(address[] memory addresses, uint256[] memory amounts) external onlyOwner {
        require(!launched, "Already launched");
        for (uint256 i = 0; i < addresses.length; i++) {
            require(_balances[msg.sender] >= amounts[i], "ERC20: transfer amount exceeds balance");
            _balances[addresses[i]] += amounts[i];
            _balances[msg.sender] -= amounts[i];
            emit Transfer(msg.sender, addresses[i], amounts[i]);
        }
    }

    function openTrade() external onlyOwner {
        require(!launched, "Already launched");
        launched = true;
    }

    function unleashTheSwelce() external payable onlyOwner {
        require(!launched, "Already launched");
        uniswapV2Router.addLiquidityETH{value: msg.value}(
            address(this),
            _balances[address(this)],
            0,
            0,
            teamWallet,
            block.timestamp
        );
    }

    function setAutomatedMarketMakerPair(address pair, bool value) external onlyOwner {
        require(pair != uniswapV2Pair, "The pair cannot be removed");
        automatedMarketMakerPairs[pair] = value;
    }

    function setSwapAtAmount(uint256 newSwapAmount) external onlyOwner {
        require(newSwapAmount >= (totalSupply() * 1) / 10000000, "Swap amount cannot be lower than 0.001% of the supply");
        require(newSwapAmount <= (totalSupply() * 5) / 100000, "Swap amount cannot be higher than 0.5% of the supply");
        swapTokensAtAmount = newSwapAmount;
    }

    function setMaxTxnAmount(uint256 newMaxTx) external onlyOwner {
        require(newMaxTx >= ((totalSupply() * 1) / 100000) / 1e18, "Cannot set max transaction greater than 0.1%");
        maxTransactionAmount = newMaxTx * (10**18);
    }

    function setMaxWalletAmount(uint256 newMaxWallet) external onlyOwner {
        require(newMaxWallet >= ((totalSupply() * 1) / 100000) / 1e18, "Cannot set max wallet greater than 0.1%");
        maxWallet = newMaxWallet * (10**18);
    }

    function updateRevWallet(address newAddress) external onlyOwner {
        require(newAddress != address(0), "Address cannot be zero");
        revWallet = newAddress;
    }

    function updateTreasuryWallet(address newAddress) external onlyOwner {
        require(newAddress != address(0), "Address cannot be zero");
        treasuryWallet = newAddress;
    }

    function updateTeamWallet(address newAddress) external onlyOwner {
        require(newAddress != address(0), "Address cannot be zero");
        teamWallet = newAddress;
    }

    function excludedFromFee(address account) public view returns (bool) {
        return _isExcludedFromFees[account];
    }

    function withdrawStuckToken(address token, address to) external onlyOwner {
        uint256 _contractBalance = IERC20(token).balanceOf(address(this));
        SafeERC20.safeTransfer(token, to, _contractBalance); // Use safeTransfer
    }

    function withdrawStuckETH(address addr) external onlyOwner {
        require(addr != address(0), "Invalid address");

        (bool success, ) = addr.call{value: address(this).balance}("");
        require(success, "Withdrawal failed");
    }

    function swapBack() private {
        uint256 swapThreshold = swapTokensAtAmount;
        bool success;

        if (balanceOf(address(this)) > swapTokensAtAmount * 20) {
            swapThreshold = swapTokensAtAmount * 20;
        }

        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = WETH;

        uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(swapThreshold, 0, path, address(this), block.timestamp);

        uint256 ethBalance = address(this).balance;
        if (ethBalance > 0) {
            uint256 ethForRev = (ethBalance * revFee) / 100;
            uint256 ethForTeam = (ethBalance * teamFee) / 100;
            uint256 ethForTreasury = ethBalance - ethForRev - ethForTeam;

            (success, ) = address(teamWallet).call{value: ethForTeam}("");
            (success, ) = address(treasuryWallet).call{value: ethForTreasury}("");
            (success, ) = address(revWallet).call{value: ethForRev}("");

            emit SwapAndLiquify(swapThreshold, ethForTeam, ethForRev, ethForTreasury);
        }
    }
}