// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

contract HelloGiwa {
    string public greeting;
    uint256 public count;
    address public deployer;

    event GreetingUpdated(string newGreeting, address indexed updatedBy);
    event Incremented(uint256 newCount, address indexed updatedBy);

    constructor() {
        greeting = "Hello from GIWA Network!";
        deployer = msg.sender;
        count = 1;
    }

    function setGreeting(string memory _greeting) external {
        greeting = _greeting;
        emit GreetingUpdated(_greeting, msg.sender);
    }

    function increment() external {
        count += 1;
        emit Incremented(count, msg.sender);
    }
}