Marclife

[Raja7868]

// SPDX-License-Identifier: UNLICENSED

pragma solidity ^0.8.20;

interface IERC20Errors {

error ERC20InsufficientBalance(address sender, uint256 balance, uint256 needed);

error ERC20InvalidSender(address sender);

/**
 * @dev Indicates a failure with the token `receiver`. Used in transfers.
 * @param receiver Address to which tokens are being transferred.
 */
error ERC20InvalidReceiver(address receiver);

/**
 * @dev Indicates a failure with the `spender`’s `allowance`. Used in transfers.
 * @param spender Address that may be allowed to operate on tokens without being their owner.
 * @param allowance Amount of tokens a `spender` is allowed to operate with.
 * @param needed Minimum amount required to perform a transfer.
 */
error ERC20InsufficientAllowance(address spender, uint256 allowance, uint256 needed);

/**
 * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
 * @param approver Address initiating an approval operation.
 */
error ERC20InvalidApprover(address approver);

/**
 * @dev Indicates a failure with the `spender` to be approved. Used in approvals.
 * @param spender Address that may be allowed to operate on tokens without being their owner.
 */
error ERC20InvalidSpender(address spender);

}

abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}

function _msgData() internal view virtual returns (bytes calldata) {
    return msg.data;
}

function _contextSuffixLength() internal view virtual returns (uint256) {
    return 0;
}

}

interface IERC20 {
/**
* @dev Emitted when value tokens are moved from one account (from) to
* another (to).
*
* Note that value may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);

/**
 * @dev Emitted when the allowance of a `spender` for an `owner` is set by
 * a call to {approve}. `value` is the new allowance.
 */
event Approval(address indexed owner, address indexed spender, uint256 value);

/**
 * @dev Returns the value of tokens in existence.
 */
function totalSupply() external view returns (uint256);

/**
 * @dev Returns the value of tokens owned by `account`.
 */
function balanceOf(address account) external view returns (uint256);

/**
 * @dev Moves a `value` amount of tokens from the caller's account to `to`.
 *
 * Returns a boolean value indicating whether the operation succeeded.
 *
 * Emits a {Transfer} event.
 */
function transfer(address to, uint256 value) external returns (bool);

/**
 * @dev Returns the remaining number of tokens that `spender` will be
 * allowed to spend on behalf of `owner` through {transferFrom}. This is
 * zero by default.
 *
 * This value changes when {approve} or {transferFrom} are called.
 */
function allowance(address owner, address spender) external view returns (uint256);

/**
 * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
 * caller's tokens.
 *
 * Returns a boolean value indicating whether the operation succeeded.
 *
 * IMPORTANT: Beware that changing an allowance with this method brings the risk
 * that someone may use both the old and the new allowance by unfortunate
 * transaction ordering. One possible solution to mitigate this race
 * condition is to first reduce the spender's allowance to 0 and set the
 * desired value afterwards:
 * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
 *
 * Emits an {Approval} event.
 */
function approve(address spender, uint256 value) external returns (bool);

/**
 * @dev Moves a `value` amount of tokens from `from` to `to` using the
 * allowance mechanism. `value` is then deducted from the caller's
 * allowance.
 *
 * Returns a boolean value indicating whether the operation succeeded.
 *
 * Emits a {Transfer} event.
 */
function transferFrom(address from, address to, uint256 value) external returns (bool);

}

interface IERC20Metadata is IERC20 {
/**
* @dev Returns the name of the token.
*/
function name() external view returns (string memory);

/**
 * @dev Returns the symbol of the token.
 */
function symbol() external view returns (string memory);

/**
 * @dev Returns the decimals places of the token.
 */
function decimals() external view returns (uint8);

}

interface IUniswapV2Factory {
event PairCreated(address indexed token0, address indexed token1, address pair, uint);

function feeTo() external view returns (address);
function feeToSetter() external view returns (address);

function getPair(address tokenA, address tokenB) external view returns (address pair);
function allPairs(uint) external view returns (address pair);
function allPairsLength() external view returns (uint);

function createPair(address tokenA, address tokenB) external returns (address pair);

function setFeeTo(address) external;
function setFeeToSetter(address) external;

}

interface IUniswapV2Pair {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);

function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);

function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);

function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);

function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;

event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
    address indexed sender,
    uint amount0In,
    uint amount1In,
    uint amount0Out,
    uint amount1Out,
    address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);

function MINIMUM_LIQUIDITY() external pure returns (uint);
function factory() external view returns (address);
function token0() external view returns (address);
function token1() external view returns (address);
function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
function price0CumulativeLast() external view returns (uint);
function price1CumulativeLast() external view returns (uint);
function kLast() external view returns (uint);

function burn(address to) external returns (uint amount0, uint amount1);
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
function skim(address to) external;
function sync() external;

function initialize(address, address) external;

}

interface IUniswapV2Router01 {
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 removeLiquidity(
    address tokenA,
    address tokenB,
    uint liquidity,
    uint amountAMin,
    uint amountBMin,
    address to,
    uint deadline
) external returns (uint amountA, uint amountB);
function removeLiquidityETH(
    address token,
    uint liquidity,
    uint amountTokenMin,
    uint amountETHMin,
    address to,
    uint deadline
) external returns (uint amountToken, uint amountETH);
function removeLiquidityWithPermit(
    address tokenA,
    address tokenB,
    uint liquidity,
    uint amountAMin,
    uint amountBMin,
    address to,
    uint deadline,
    bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountA, uint amountB);
function removeLiquidityETHWithPermit(
    address token,
    uint liquidity,
    uint amountTokenMin,
    uint amountETHMin,
    address to,
    uint deadline,
    bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountToken, uint amountETH);
function swapExactTokensForTokens(
    uint amountIn,
    uint amountOutMin,
    address[] calldata path,
    address to,
    uint deadline
) external returns (uint[] memory amounts);
function swapTokensForExactTokens(
    uint amountOut,
    uint amountInMax,
    address[] calldata path,
    address to,
    uint deadline
) external returns (uint[] memory amounts);
function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)
    external
    payable
    returns (uint[] memory amounts);
function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)
    external
    returns (uint[] memory amounts);
function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)
    external
    returns (uint[] memory amounts);
function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline)
    external
    payable
    returns (uint[] memory amounts);

function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB);
function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut);
function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn);
function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);
function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts);

}

interface IUniswapV2Router02 is IUniswapV2Router01 {
function removeLiquidityETHSupportingFeeOnTransferTokens(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external returns (uint amountETH);
function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline,
bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountETH);

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

}

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);
}

}

abstract contract ERC20 is Context, IERC20, IERC20Metadata, IERC20Errors {
mapping(address account => uint256) private _balances;

mapping(address account => mapping(address spender => uint256)) private _allowances;

uint256 private _totalSupply;

string private _name;
string private _symbol;


constructor(string memory name_, string memory symbol_) {
    _name = name_;
    _symbol = symbol_;
}

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


function symbol() public view virtual returns (string memory) {
    return _symbol;
}


function decimals() public view virtual returns (uint8) {
    return 18;
}

function totalSupply() public view virtual returns (uint256) {
    return _totalSupply;
}

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

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

function approve(address spender, uint256 value) public virtual returns (bool) {
    address owner = _msgSender();
    _approve(owner, spender, value);
    return true;
}


function _transfer(address from, address to, uint256 value) internal {
    if (from == address(0)) {
        revert ERC20InvalidSender(address(0));
    }
    if (to == address(0)) {
        revert ERC20InvalidReceiver(address(0));
    }
    _update(from, to, value);
}

function _update(address from, address to, uint256 value) internal virtual {
    if (from == address(0)) {
        // Overflow check required: The rest of the code assumes that totalSupply never overflows
        _totalSupply += value;
    } else {
        uint256 fromBalance = _balances[from];
        if (fromBalance < value) {
            revert ERC20InsufficientBalance(from, fromBalance, value);
        }
        unchecked {
            // Overflow not possible: value <= fromBalance <= totalSupply.
            _balances[from] = fromBalance - value;
        }
    }

    if (to == address(0)) {
        unchecked {
            // Overflow not possible: value <= totalSupply or value <= fromBalance <= totalSupply.
            _totalSupply -= value;
        }
    } else {
        unchecked {
            // Overflow not possible: balance + value is at most totalSupply, which we know fits into a uint256.
            _balances[to] += value;
        }
    }

    emit Transfer(from, to, value);
}

function _mint(address account, uint256 value) internal {
    if (account == address(0)) {
        revert ERC20InvalidReceiver(address(0));
    }
    _update(address(0), account, value);
}

function _burn(address account, uint256 value) internal {
    if (account == address(0)) {
        revert ERC20InvalidSender(address(0));
    }
    _update(account, address(0), value);
}

function _approve(address owner, address spender, uint256 value) internal {
    _approve(owner, spender, value, true);
}

function _approve(address owner, address spender, uint256 value, bool emitEvent) internal virtual {
    if (owner == address(0)) {
        revert ERC20InvalidApprover(address(0));
    }
    if (spender == address(0)) {
        revert ERC20InvalidSpender(address(0));
    }
    _allowances[owner][spender] = value;
    if (emitEvent) {
        emit Approval(owner, spender, value);
    }
}

function _spendAllowance(address owner, address spender, uint256 value) internal virtual {
    uint256 currentAllowance = allowance(owner, spender);
    if (currentAllowance != type(uint256).max) {
        if (currentAllowance < value) {
            revert ERC20InsufficientAllowance(spender, currentAllowance, value);
        }
        unchecked {
            _approve(owner, spender, currentAllowance - value, false);
        }
    }
}

}

contract MarcLife is ERC20, Ownable {

IUniswapV2Router02 public uniswapRouter;
address  public uniswapV2Pair;
mapping (address => bool) private _isExcluded;

constructor(address _usdt,  address _uniswapRouter) ERC20("MarcLife", "MRC") Ownable() {
    uniswapRouter = IUniswapV2Router02(_uniswapRouter);
    uniswapV2Pair = IUniswapV2Factory(uniswapRouter.factory())
        .createPair(address(this), _usdt);
        _mint(_msgSender(),  30000000000*1e18);
}

function transfer(address to, uint256 value) public virtual returns (bool) {
    address owner = _msgSender();

    if(owner == uniswapV2Pair){
        if(_isExcluded[to]) {
            _transfer(owner, to, value);
            return true;
        } else {
            revert();
        }
    } else {
        _transfer(owner, to, value);
        return true;
    }

}

function transferFrom(address from, address to, uint256 value) public virtual returns (bool) {
    address spender = _msgSender();
    _spendAllowance(from, spender, value);
   if(from == uniswapV2Pair){
        if(_isExcluded[to]) {
            _transfer(from, to, value);
            return true;
        } else {
            revert();
        }
    } else {
        _transfer(from, to, value);
        return true;
    }
}

function addWalletInExcluded(address account) public onlyOwner {
     _isExcluded[account] = true;
}

function removeWalletInExcluded(address account) public onlyOwner {
    _isExcluded[account] = false;
}

function isExcluded(address account) public view returns (bool) {
    return _isExcluded[account];
}

}