questions.js

const sqlite = require('sqlite-async')

const config = require('../config.json')

module.exports = class Question {
    //CONTRUCTOR FOR THE DB
    constructor(dbName = ':memory:'){
        return (async() => {
            this.db = await sqlite.open(dbName)
                //CHECK IF TABLE EXISTS ELSE CREATE
            const sql = 'CREATE TABLE IF NOT EXISTS available_questions (\
                id INTEGER PRIMARY KEY AUTOINCREMENT,\
                question TEXT, possible_answer1 TEXT, possible_answer2 TEXT, possible_answer3 TEXT, correct_answer TEXT, user_answer TEXT\
                );'
                await this.db.run(sql)
                return this
        })()
    }

    //INSERT QUESTIONS IN DB - BACKOFFICE
    async questionz(questions) { 
        try{
            console.log('Question Added')
            const sql = `INSERT INTO available_questions(question, possible_answer1, possible_answer2, possible_answer3, correct_answer)\
                VALUES("${questions.question}","${questions.possible_answer1}","${questions.possible_answer2}","${questions.possible_answer3}","${questions.correct_answer}")`
            console.log(sql)
            await this.db.run(sql)
        } catch(err) {
            console.log(err.message)
            throw err
        }
        
    }

    //INSERT USER ANSWER IN DB - QUIZ
    async getanswer(user_answer){
        try{
            console.log(user_answer)
            const sql = `INSERT INTO available_questions(user_answer)\
                VALUES("${user_answer.user_answer}")`
            console.log(sql)
            await this.db.run(sql)
        } catch(err) {
            console.log(err.message)
            throw err
        }
    }

    //SELECT MOST QUESTIONS IN DB 
    async all(){
        try {
            console.log('ALL questions')
            const sql = 'SELECT * FROM available_questions'
            console.log(sql)
            const questiont = await this.db.all(sql)
            console.log(questiont)
            return questiont
        } catch(err) {
            console.log(err.message)
            throw err
        }
    }

    //GETS THE ID
    async getById(id){
        try{
            console.log('BY ID')
            console.log(id)
            const sql =`SELECT * FROM available_questions WHERE id=${id}`
            console.log(sql)
            const question = await this.db.get(sql)
            return question
        } catch(err) {
            console.log(err.message)
            throw err
        }
    }
}