gumball_mvc.rb

class Gumball
	attr_reader :color, :flavor
	DEFAULT_COLORS = ['red', 'green', 'blue']
	DEFAULT_FLAVORS = ['sour apple', 'bacon', 'gravy']

	def initialize(options={})
		@color = options.fetch(:color) { DEFAULT_COLORS.sample }
		@flavor = options.fetch(:flavor) { DEFAULT_FLAVORS.sample }
	end
end

class GumballMachine
	attr_reader :gumballs
	def initialize(options={})
		@gumballs = []
	end

	def insert_coin
		@gumballs.shuffle.pop
	end

	def refill
		if @gumballs.empty?
			100.times do
				@gumballs << Gumball.new
			end
		end
	end
end

class GumballMachineController
	def initialize(view, machine)
		@view = view
		@machine = machine
	end

	def run
		input = @view.welcome_prompt
		until input.downcase == "n"
			@view.list_gumballs(@machine.gumballs)			
			coin = @view.ask_for_coin
			@view.give_gumball(@machine.insert_coin)
			input = @view.reprompt
		end

		@view.exit_message
	end
end

class GumballMachineTerminalView
	def welcome_prompt
		puts "Hello, I am a gumball machine."
		puts "Are you interested in a gumball? (y/n)"
		input = gets.chomp
	end

	def list_gumballs(gumballs)
		# List all gumballs in the machine
		puts "Here are all the gumballs"

		puts "#{gumballs.map{ |gumball| gumball.color.capitalize }.join(' gumball, ')}"
		puts "You won't know the flavor until you try it. Enjoy :)"
		puts
	end

	def ask_for_coin
		puts "Please insert a coin"
		gets.chomp
	end

	def give_gumball(gumball)
		puts "You got a #{gumball.color} gumball that is flavored with #{gumball.flavor}"
		puts
	end

	def reprompt
		puts "Would you like another gumball? (y/n)"
		gets.chomp
	end

	def exit_message
		puts "That's your loss"
		puts
	end
end

gumball_machine = GumballMachine.new
gumball_machine_view = GumballMachineTerminalView.new
gumball_machine.refill

gumball_machine_controller = GumballMachineController.new(gumball_machine_view, gumball_machine)
gumball_machine_controller.run