Sonic CodeCamp Activity

StudentContract.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.19;

/// @title Interface for ClassmateConnect
interface IClassmateConnect {
    function registerProfile(
        address _studentAddress,
        string memory _nickname,
        string memory _bio
    ) external;

    function getProfile(address _studentAddress)
        external
        view
        returns (
            string memory,
            string memory,
            address
        );

    function addComment(
        address _studentAddress,
        address _commenter,
        string memory _message
    ) external;

    function getComments(address _studentAddress)
        external
        view
        returns (address[] memory, string[] memory);
}

/// @title StudentContract - Individual student interaction contract
contract StudentContract {
    address public owner;
    IClassmateConnect public parentContract;


    // ⚠️ #1 @todo Add an event to log a comment from student

    constructor(
        string memory _nickname,
        string memory _bio
    ) {
        owner = msg.sender;
        parentContract = IClassmateConnect(0x8e4C7Ef963884b8a804BFdF2324b62c1daBC9660);

        // Register student profile on the parent contract
        parentContract.registerProfile(owner, _nickname, _bio);
    }

    /// @notice View a classmate's profile
    function viewClassmateProfile(address _classmate)
        external
        view
        returns (
            string memory,
            string memory,
            address
        )
    {
        return parentContract.getProfile(_classmate);
    }

    // ⚠️ #2 @todo Add a function named commentOnClassmate to allow commenting on a student profile
    // ⚠️ #3 @todo Inside commentOnClassmate function, Emit the CommentSubmitted event after submitting a comment


    /// @notice View comments on a classmate's profile
    function viewClassmateComments(address _classmate)
        external
        view
        returns (address[] memory, string[] memory)
    {
        return parentContract.getComments(_classmate);
    }
}

• ClassmateConnect Address Book: https://bit.ly/classmate-address

• ClassmateConnect Parent contract address: 0xBa0F76C6B6Ccb65aba626a627dCf161975e2EE8C

Answer #1

event CommentSubmitted(address indexed student, string message);

Answer #2 & #3

 function commentOnClassmate(address _classmate, string memory _message)
        external
    {
        require(bytes(_message).length > 0, "Message cannot be empty");
        parentContract.addComment(_classmate, msg.sender, _message);

        // Emitting the CommentSubmitted event
        emit CommentSubmitted(_classmate, _message);
    }

Sonic RPC

 sonic: {
      url: "https://rpc.blaze.soniclabs.com",
      accounts: [deployerPrivateKey],
    }