Flashcards

flashcards.rb

module Flashcards
  class Card
    attr_accessor :front, :back

    def initialize(front, back)
      @front = front
      @back = back
    end

    def play
      print "Guess the answer to #{front}: "

      guess = gets.chomp

      if guess == back
        puts "You were right!"
      else
        puts "You were wrong! The correct answer was #{back}."
      end
    end
  end

  class Deck
    attr_reader :name

    def initialize(name)
      @name = name
      @cards = []
    end

    def <<(card)
      @cards << card
    end

    def each(&block)
      @cards.each(&block)
    end

    def shuffle
      @cards.shuffle!
    end

    def play
      shuffle
      @cards.each do |card|
        card.play
      end
    end
  end

  class Application
    def initialize
      @decks = []
    end

    def <<(deck)
      @decks << deck
    end

    def play
      display_decks
      deck = choose_deck
      deck.play
    end

    def display_decks
      @decks.each do |deck|
        puts deck.name
      end
    end

    def choose_deck
      print "Which deck do you want to play? > "
      chosen_deck = gets.chomp

      @decks.detect do |deck|
        deck.name == chosen_deck
      end
    end
  end
end

app = Flashcards::Application.new

deck = Flashcards::Deck.new('Spanish')
deck << Flashcards::Card.new('Hola', 'Hello')
deck << Flashcards::Card.new('Adios', 'Goodbye')
app << deck

app.play