pragma solidity >=0.4.22 <0.6.0;
import "./PittCoin.sol";
contract PittCoinStackOverflow is PittCoin {
    
    event NewQuestion(uint questionId, string title);
    
    struct User{
        string pittUsername;
        uint amount;
        //   uint accountNumber;
    }
    
    struct Question{
        uint bounty;
        string qText;
    }

    struct Course {
        uint catalogNumber;     //5 digit
        string courseTitle;     // actual title
        string courseNumber;    // CS 1699
        uint semester;          // 4 digit semester
        address instructor;     //instructor PittCoin address
    }
    
    mapping(uint => address) public questionToAsker;
    mapping(address=> uint) userAnsweredCount;
    mapping(uint=> address) userToWallet;
    Question[] public questions;
    Course[] public courses;
    User[] public users;
    
    function _addUser(string memory _uName, uint _amount) internal{
        uint id = users.push(User(_uName, _amount)) -1;
        userToWallet[id] = msg.sender;
    }
    
    function _generateRandomID(string memory _str) private view returns (uint){
        uint rand = uint(keccak256(abi.encodePacked(_str)));
        return rand;
    }
    
    function _createQuestion(uint _amount, string memory _qText) internal {
        uint randID = _generateRandomID(_qText);
        uint id = questions.push(Question(_amount, _qText)) - 1;
        questionToAsker[id] = msg.sender;
        questions.push(Question(_amount, _qText)) - 1;
        questionToAsker[id] = msg.sender;
        emit NewQuestion(randID, _qText);
    }
}