QuizApp

QuizApp.playground

import Foundation

class Answer {
    let questionId = 0
    let answerId = 0
    let answer: String?
}

public class Question {
    let questionId = 0
    let question: String?
    var answers: [Answer] = []
    
    init(questionId: Int, question: String) {
        self.questionId = questionId
        self.question = question
    }
}

class Solution {
    let questionId = 0
    let answer: Answer?
}

class Category {
    var name: String?
    var questions: [Int: Question] = [:]
    var solutions: [Int: Answer] = [:]
    
    func randomQuestion() -> Question {
        let numberOfQuestions = self.questions.count
        let questionId = Int(arc4random_uniform(UInt32(numberOfQuestions)))
        
        return self.questions[questionId]!
    }
}

class QuizApp {
    var category = Category()
    
    init(category: String) {
        self.category.name = category;
        
        var questions: [Int: Question] = [:]
        for index in 1...10 {
            let question = Question(questionId: index, question: "How many times does a ball bounces and hit the ground, when it's thrown from 100 meters above the ground?")
            questions[index] = question
            
            self.category.questions = questions
        }
   }
    
    public func getQuestion() -> Question {
        return self.category.randomQuestion();
    }
}

let quiz = QuizApp(category: "Science")
let question = quiz.getQuestion()
let questionString = question.question!

println("\(questionString)")