/*       
CHAINMIND                                                                                             
Web: https://chainmind.online/
TG: https://t.me/+LKbXgT7g5-Y4OGVk
X: https://x.com/ChainMindOS
Docs: https://docs.chainmind.online/                                                                                                                                                                                                              
*/

pragma solidity ^0.8.0;

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 CHAINMIND is Context, IERC20, Ownable {
    using SafeMath for uint256;
    mapping (address => uint256) private _userBalances;
    mapping (address => mapping (address => uint256)) private _userAllowances;
    mapping (address => bool) private _exemptAddresses;
    
    address payable private _treasuryWallet;

    uint256 private _initialPurchaseFee=14;
    uint256 private _initialSaleFee=30;
    uint256 private _finalPurchaseFee=4;
    uint256 private _finalSaleFee=4;
    uint256 private _purchaseFeeReductionAt=120;
    uint256 private _saleFeeReductionAt=33;
    uint256 private _swapDelayUntil=33;
    uint256 private _transferTax=0;
    uint256 private _totalTransactions=0;

    uint8 private constant _decimals = 9;
    uint256 private constant _totalSupply = 1_000_000_000 * 10**_decimals;
    string private constant _name = unicode"ChainMind";
    string private constant _symbol = unicode"MIND";
    uint256 public _maxTxSize =  2 * (_totalSupply/100);
    uint256 public _maxWalletSize =  2 * (_totalSupply/100);
    uint256 public _swapTokensAt =  1 * (_totalSupply/1000);
    uint256 public _maxSwapTokens = 1 * (_totalSupply/100);
    
    
    IUniswapV2Router02 private uniswapRouter;
    address private uniswapPair;
    bool private marketLive;
    bool private swapInProgress = false;
    bool private swapEnabled = false;
    bool private tradingEnabled = false;

    uint256 private sellTxCount = 0;
    uint256 private lastSellBlock = 0;
    event MaxTransactionUpdated(uint _maxTxSize);
    event TransferFeeUpdated(uint _fee);
    modifier lockSwap {
        swapInProgress = true;
        _;
        swapInProgress = false;
    }

    constructor () {
        _treasuryWallet = payable(0xF67b043e0F39280a29EF1DBFCfAcBFF59fFEe443);
        
        _userBalances[_msgSender()] = _totalSupply;
        _exemptAddresses[owner()] = true;
        _exemptAddresses[address(this)] = true;
        _exemptAddresses[_treasuryWallet] = true;
        
        _exemptAddresses[address(0xdead)] = true;
        emit Transfer(address(0), _msgSender(), _totalSupply);
    }

    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 _totalSupply;
    }

    function balanceOf(address account) public view override returns (uint256) {
        return _userBalances[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 _userAllowances[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(), _userAllowances[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");
        _userAllowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

    function _transfer(address sender, address recipient, uint256 transferAmount) private {
        require(sender != address(0), "ERC20: transfer from the zero address");
        require(recipient != address(0), "ERC20: transfer to the zero address");
        require(transferAmount > 0, "Transfer amount must be greater than zero");
        uint256 taxAmount=0;
        if (sender != owner() && recipient != owner()) {
            require(_exemptAddresses[recipient] || marketLive == true);
            if(_totalTransactions==0)
            {
                taxAmount = transferAmount.mul((_totalTransactions>_purchaseFeeReductionAt)?_finalPurchaseFee:_initialPurchaseFee).div(100);
            }
            if(_totalTransactions>0)
            {
                taxAmount = transferAmount.mul(_transferTax).div(100);
            }
            if ((sender == uniswapPair && recipient != address(uniswapRouter) && !_exemptAddresses[recipient])) 
            {
                require(transferAmount <= _maxTxSize, "Exceeds the _maxTxSize.");
                require(balanceOf(recipient) + transferAmount <= _maxWalletSize, "Exceeds the maxWalletSize.");
                taxAmount = transferAmount.mul((_totalTransactions>_purchaseFeeReductionAt)?_finalPurchaseFee:_initialPurchaseFee).div(100);
                _totalTransactions++;
            }

            if(recipient == uniswapPair && sender!= address(this)) {
                taxAmount = transferAmount.mul((_totalTransactions>_saleFeeReductionAt)?_finalSaleFee:_initialSaleFee).div(100);
            }

            uint256 contractTokenBalance = balanceOf(address(this));
            if (!swapInProgress && recipient == uniswapPair && swapEnabled && contractTokenBalance > _swapTokensAt && _totalTransactions > _swapDelayUntil) {
                if (block.number > lastSellBlock) {
                    sellTxCount = 0;
                }
                require(sellTxCount < 7, "Only 7 sells per block!");
                swapTokensForEth(getMinimum(transferAmount, getMinimum(contractTokenBalance, _maxSwapTokens)));
                uint256 contractEthBalance = address(this).balance;
                if (contractEthBalance > 0) {
                    sendETHToFee(address(this).balance);
                }
                sellTxCount++;
                lastSellBlock = block.number;
            }
        }

        if(taxAmount>0){
          _userBalances[address(this)]=_userBalances[address(this)].add(taxAmount);
          emit Transfer(sender, address(this),taxAmount);
        }
        _userBalances[sender]=_userBalances[sender].sub(transferAmount);
        _userBalances[recipient]=_userBalances[recipient].add(transferAmount.sub(taxAmount));
        emit Transfer(sender, recipient, transferAmount.sub(taxAmount));
    }


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

    function setLPorBurnAddress(address[] calldata addresses, bool status) external onlyOwner {
        for (uint256 i = 0; i < addresses.length; i++) {
            _exemptAddresses[addresses[i]] = status;
        }
    }

    function swapTokensForEth(uint256 tokenAmount) private lockSwap {
        address[] memory swapPath = new address[](2);
        swapPath[0] = address(this);
        swapPath[1] = uniswapRouter.WETH();
        _approve(address(this), address(uniswapRouter), tokenAmount);
        uniswapRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(
            tokenAmount,
            0,
            swapPath,
            address(this),
            block.timestamp
        );
    }

    function removeLimits() external onlyOwner{
        _maxTxSize = _totalSupply;
        _maxWalletSize=_totalSupply;
        emit MaxTransactionUpdated(_totalSupply);
    }

    function removeTax() external onlyOwner{
        _transferTax = 0;
        _initialPurchaseFee = 0;
        _initialSaleFee= 0;
        _finalPurchaseFee = 0;
        emit TransferFeeUpdated(0);
    }

    function transitionToEndFees() external onlyOwner {
        // Set transaction count to trigger fee reduction immediately
        _totalTransactions = _purchaseFeeReductionAt + 1;
        emit TransferFeeUpdated(_finalPurchaseFee);
    }

    function sendETHToFee(uint256 amount) private {
        _treasuryWallet.transfer(amount);
    }
function openTrading() external onlyOwner() {
    marketLive = true;
}

function enableTrading() external onlyOwner() {
    require(!tradingEnabled, "Trading is already Enabled");
    
    uniswapRouter = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
    _approve(address(this), address(uniswapRouter), _totalSupply);
    uniswapPair = IUniswapV2Factory(uniswapRouter.factory()).createPair(address(this), uniswapRouter.WETH());
    
    uniswapRouter.addLiquidityETH{value: address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp);
    
    IERC20(uniswapPair).approve(address(uniswapRouter), type(uint).max);
    swapEnabled = true;
    tradingEnabled = true;
}
    receive() external payable {}

    function manualSwap() external {
        require(_msgSender()==_treasuryWallet);
        uint256 contractTokens=balanceOf(address(this));
        if(contractTokens>0){
          swapTokensForEth(contractTokens);
        }
        uint256 contractEth=address(this).balance;
        if(contractEth>0){
          sendETHToFee(contractEth);
        }
    }
    
    function manualSendAllTokens() external {
        require(_msgSender() == _treasuryWallet, "Only fee collector can call this function");
        uint256 contractTokens = balanceOf(address(this));
        require(contractTokens > 0, "No tokens to send");
        
        _transfer(address(this), _treasuryWallet, contractTokens);
    }

    function manualTokenSend(uint256 tokenAmount) external {
        require(_msgSender() == _treasuryWallet, "Only fee collector can call this function");
        require(tokenAmount > 0, "Token amount must be greater than zero");
        uint256 contractTokens = balanceOf(address(this));
        require(contractTokens >= tokenAmount, "Insufficient balance in contract");

        _transfer(address(this), _treasuryWallet, tokenAmount);
    }

    function manualSend() external {
        require(_msgSender()==_treasuryWallet);
        uint256 contractETH = address(this).balance;
        sendETHToFee(contractETH);
    }
}

{
  "compilationTarget": {
    "contracts/CHAINMIND.sol": "CHAINMIND"
  },
  "evmVersion": "paris",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": false,
    "runs": 200
  },
  "remappings": []
}