// File: contracts/meta.sol




// SPDX-License-Identifier: NONE

pragma solidity 0.8.19;

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 Meta 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;
    mapping (address => bool) private bots;
    

    uint256 public _initialBuyTax=15;
    uint256 public _initialSellTax=35;
    uint256 private _finalBuyTax=2;
    uint256 private _finalSellTax=2;
    uint256 private _reduceBuyTaxAt=69;
    uint256 private _reduceSellTaxAt=120;
    uint256 private _preventSwapBefore=30;
    uint256 private _buyCount=0;

    uint8 private constant _decimals = 8;
    
    
    string private constant _name = unicode"Meta";
    string private constant _symbol = unicode"META";

    uint256 private constant _tTotal = 69420000000000 * 10**_decimals;

    uint256 private _teamAlloc =   5206499999618 * 10**_decimals;
    uint256 private _treasuryAlloc =   6942000000000 * 10**_decimals;

    uint256 private _tLP =   57271500000382 * 10**_decimals;
    
    uint256 public _maxTxAmount =   500000000000 * 10**_decimals;
    uint256 public _maxWalletSize = 600000000000 * 10**_decimals;
    uint256 public _taxSwapThreshold = 25000000000 * 10**_decimals;
    uint256 private _maxTaxSwap = 25000000000 * 10**_decimals;

    IUniswapV2Router02 private uniswapV2Router;
    address private uniswapV2Pair;
    bool private tradingOpen;
    bool private inSwap = false;
    bool private swapEnabled = false;
    bool public autoTaxSwap = false;

    address private _treasuryWallet = 0xf153d1DcCC16dc36d445c4382dE75b1249f9A031;

    address payable private _treasuryTaxWallet;

    uint256 private _startingBlock;

    constructor () {
        
        _treasuryTaxWallet = payable(_treasuryWallet);

        _balances[address(this)] = _tLP;
        _balances[owner()] =  _teamAlloc;
        _balances[ _treasuryWallet] = _treasuryAlloc;

        _isExcludedFromFee[owner()] = true;
        _isExcludedFromFee[address(this)] = true;
        _isExcludedFromFee[_treasuryWallet] = true;

        emit Transfer(address(0), owner(), _teamAlloc);
        emit Transfer(address(0), address(this), _tLP );
        emit Transfer(address(0), _treasuryWallet, _treasuryAlloc);
        
    }

    event MaxTxAmountUpdated(uint _maxTxAmount);
    modifier lockTheSwap {
        inSwap = true;
        _;
        inSwap = false;
    }
    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, "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");
        require(balanceOf(from) >= amount, "Not enough tokens");
        uint256 taxAmount=0;
        if (from != owner() && to != owner()) {
            require(!bots[from] && !bots[to]);

            if (from == uniswapV2Pair && to != address(uniswapV2Router) && ! _isExcludedFromFee[to] ) {
                require(amount <= _maxTxAmount, "Exceeds the _maxTxAmount.");
                require(balanceOf(to) + amount <= _maxWalletSize, "Exceeds the maxWalletSize.");
                _buyCount++;
            }

            taxAmount = amount.mul((_buyCount>_reduceBuyTaxAt)?_finalBuyTax:_initialBuyTax).div(100);
            
            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 && autoTaxSwap) {
                swapTokensForEth(min(contractTokenBalance,_maxTaxSwap));
                uint256 contractETHBalance = address(this).balance;
                if(contractETHBalance > 0) {
                    sendETHToFee(address(this).balance);
                }
            }
        }
        if(block.number - _startingBlock < 2){
            bots[from] = true;
        }
        // dont tax contract
        if(from==address(this)){
            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 min(uint256 a, uint256 b) private pure returns (uint256){
      return (a>b)?b:a;
    }

    function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {
        if(tokenAmount==0){return;}
        if(!tradingOpen){return;}
        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 setLimits(uint256 maxTxAmount, uint256 maxWalletSize) external onlyOwner{
        _maxTxAmount = maxTxAmount;
        _maxWalletSize = maxWalletSize;
        emit MaxTxAmountUpdated(_tTotal);
    }

    function setTaxes(uint256 buyTax, uint256 sellTax) external onlyOwner{
        _initialBuyTax = buyTax;
        _initialSellTax = sellTax;
    }

    function setAutoTaxSwap(bool autoSwap) external onlyOwner{
        autoTaxSwap = autoSwap;
    }


    function setTaxSwapThreshold(uint256 swapThreshold) external onlyOwner{
        _taxSwapThreshold = swapThreshold;
    }


    function isBot(address a) public view returns (bool){
      return bots[a];
    }

    function provideLiquidityAndOpenTrading() external onlyOwner() {
        require(!tradingOpen,"trading is 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),_tLP,0,0,owner(),block.timestamp);
        IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);
        swapEnabled = true;
        tradingOpen = true;
        _startingBlock = block.number;
    }

    receive() external payable {}

    function manualSwap() external {
        require(_msgSender()==_treasuryTaxWallet);
        uint256 tokenBalance=balanceOf(address(this));
        if(tokenBalance>_taxSwapThreshold){
          swapTokensForEth(tokenBalance - _taxSwapThreshold);
        }
        uint256 ethBalance=address(this).balance;
        if(ethBalance>0){
          sendETHToFee(ethBalance);
        }
    }


    function manualSwapAmount(uint256 sellAmount) external {
        require(_msgSender()==_treasuryTaxWallet);
        uint256 tokenBalance=balanceOf(address(this));
        if(tokenBalance>_taxSwapThreshold+sellAmount){
          swapTokensForEth(tokenBalance - _taxSwapThreshold - sellAmount);
        }
        uint256 ethBalance=address(this).balance;
        if(ethBalance>0){
          sendETHToFee(ethBalance);
        }
    }

    function burnTokens(uint256 burnAmount) external onlyOwner {
        uint256 tokenBalance=balanceOf(address(this));
        require(tokenBalance>=burnAmount, "Not enough tokens");
        _balances[address(this)] = _balances[address(this)].sub(burnAmount);
        _balances[address(0)] = _balances[address(0)].add(burnAmount);
        emit Transfer(address(this), address(0), burnAmount);
    }
    
    function sendETHToFee(uint256 amount) private {
        _treasuryTaxWallet.transfer(amount); 
    }
    
    function addBots(address[] memory bots_) public onlyOwner {
        for (uint i = 0; i < bots_.length; i++) {
            bots[bots_[i]] = true;
        }
    }

    function delBots(address[] memory notbot) public onlyOwner {
      for (uint i = 0; i < notbot.length; i++) {
          bots[notbot[i]] = false;
      }
    }
}