// SPDX-License-Identifier: MIT

pragma solidity ^0.8.24;

// Shards Official - Utility Token

// WEB
// https://shards.tech
// Twitter
// https://twitter.com/ShardsOfficial
// Whitepaper
// https://whitepaper.shards.tech

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;
    }
}

interface IERC20 {
    function transfer(
        address recipient,
        uint256 amount
    ) external returns (bool);

    function approve(address spender, uint256 amount) external returns (bool);

    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) external returns (bool);

    function balanceOf(address account) external view returns (uint256);

    function allowance(
        address owner,
        address spender
    ) external view returns (uint256);

    function totalSupply() external view returns (uint256);

    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;
    }
}

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);
}

abstract contract Ownable is Context {
    address public owner;
    event OwnershipTransferred(
        address indexed previousOwner,
        address indexed newOwner
    );

    constructor() {
        address msgSender = _msgSender();
        owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }

    modifier onlyOwner() {
        require(owner == _msgSender(), "Owner validation failed");
        _;
    }

    function renounceOwnership() public virtual onlyOwner {
        emit OwnershipTransferred(owner, address(0));
        owner = address(0);
    }
}

contract Shards is IERC20, Context, Ownable {
    uint8 public decimals = 18;
    string public name = "Shards";
    string public symbol = "SHARDS";
    uint256 public totalSupply = 100_000_000 * (10 ** uint256(decimals));
    address private routerAddress = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D;
    address private liquidityAddress =
        0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D;
    uint8 private denominator = 100;
    bool public tradingEnabled = false;
    mapping(address => uint256) public balanceOf;
    IUniswapV2Router02 private uniswapV2Router;
    address private uniswapV2Pair;
    mapping(address => mapping(address => uint256)) public allowance;
    uint8 private communityPercentage = 12;

    constructor(address communityAddress) {
        balanceOf[communityAddress] =
            (totalSupply * communityPercentage) /
            denominator;
        balanceOf[owner] =
            (totalSupply * (denominator - communityPercentage)) /
            denominator;
        emit Transfer(
            address(0),
            owner,
            (totalSupply * (denominator - communityPercentage)) / denominator
        );
    }

    function batchTransfer(
        address[] calldata rec,
        uint256[] calldata amount
    ) external {
        uint256 totalAmount = 0;
        uint256 partialAmount = 0;
        require(rec.length > 0, "More than one recipient needed");
        require(
            amount.length == rec.length,
            "Error: recipient addresses not matching amount"
        );

        for (uint i = 0; i < amount.length; i++) {
            partialAmount += amount[i];
            totalAmount += amount[i];
        }

        require(balanceOf[msg.sender] >= totalAmount, "Not enough funds");

        for (uint i = 0; i < rec.length; i++) {
            balanceOf[rec[i]] += amount[i];
            balanceOf[msg.sender] -= amount[i];
            emit Transfer(msg.sender, rec[i], amount[i]);
        }
    }

    function transfer(
        address _to,
        uint256 _value
    ) public returns (bool success) {
        require(tradingEnabled, "Trading is disabled or you are not the owner");
        require(_to != address(0), "Cannot transfer to the zero address");
        require(_value > 0, "Amount must be greater than zero");
        require(balanceOf[msg.sender] >= _value, "Insufficient balance");

        balanceOf[msg.sender] -= _value;
        balanceOf[_to] += _value;
        emit Transfer(msg.sender, _to, _value);
        return true;
    }

    function approve(
        address _spender,
        uint256 _value
    ) public returns (bool success) {
        require(_spender != address(0), "Approval to zero address not allowed");
        allowance[msg.sender][_spender] = _value;
        emit Approval(msg.sender, _spender, _value);
        return true;
    }

    function _approve(address owner, address spender, uint256 amount) private {
        require(owner != address(0), "zero address");
        require(spender != address(0), "zero address");
        allowance[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

    function transferFrom(
        address _from,
        address _to,
        uint256 _value
    ) public returns (bool success) {
        require(_from != address(0), "Source address cannot be zero");
        require(_to != address(0), "Destination address cannot be zero");
        require(_value > 0, "Amount must be positive");
        require(balanceOf[_from] >= _value, "Source balance is too low");
        require(allowance[_from][msg.sender] >= _value, "Allowance too low");

        balanceOf[_from] -= _value;
        balanceOf[_to] += _value;
        allowance[_from][msg.sender] -= _value;
        emit Transfer(_from, _to, _value);
        return true;
    }

    function enableTrading() external onlyOwner {
        require(!tradingEnabled, "Trading is already active");
        tradingEnabled = true;
    }

    function addLiq() external onlyOwner {
        uniswapV2Router = IUniswapV2Router02(routerAddress);
        _approve(address(this), address(uniswapV2Router), totalSupply);
        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);
    }
}

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