class Coffee0
  constructor: (name, strength = 1) ->
    @name = name
    @strength = strength

class Coffee
  constructor: (@name, @strength = 1) ->

  brew: -> alert "brewing #{@name}"

  pour: (amount = 1) ->
    if amount is 1
      "Poured a single cup"
    else
      "Poured #{amount} cups"

french = new Coffee("French", 2)
french.brew()
alert(french.pour())
alert(french.pour(2))

class MaxgoodHouse extends Coffee
  # Cannot use @param format, because of the required call to super in Coffee 2.x.
  constructor: (name, strength = 0) ->
    super name, strength
    @name = name
    @strength = strength
    @brand = "Maxgood House"

  pour: (amount = 1) ->
    "#{super(amount)}, but it sucks"

boring = new MaxgoodHouse("Boring")
boring.brew()
alert(boring.pour())

class JCoffee
  constructor: (@name, @strength = 1, @inventory = 0) ->

  pourClick: ->
    $("#pour-#{@name}").click (event) =>
      if @inventory != 0
        @inventory--
        alert "Poured a cup of #{@name}"
      else
        alert "Out of #{@name}"

j = new JCoffee "French", 2, 1
j.pourClick()

class SelectFlights
  constructor(@fetchingFlights = null) ->
    $("#tabs ul li a").bind
      click: @changeTab

    $("#tabs #error a").click (event) =>
      event.preventDefault()
      @showFlights $("#tabs li a.active").attr("href")

    showFlights: (activeDiv) -> {}
    changeTab: (event) => {}