class RegistrationData extends Backbone.Model
  defaults:
    username: ''
    password1: ''
    password2: ''
  validate: (attrs, options) ->
    @unset('username-errors')
    @unset('password1-errors')
    @unset('password2-errors')
    if (attrs.username ? '').trim() is ''
      @set('username-errors', ['This field is required.'])
    if (attrs.password1 ? '') is ''
      @set('password1-errors', ['This field is required.'])
    if (attrs.password1 ? '') isnt (attrs.password2 ? '')
      @set('password2-errors', ['Passwords must match.'])
    else if (attrs.password2 ? '') is ''
      @set('password2-errors', ['This field is required.'])
    return @has('username-errors') or @has('password1-errors') or @has('password2-errors')
class ProfileData extends Backbone.Model
  defaults:
    fullname: ''
    nickname: ''
    avatar: ''
window.regData = new RegistrationData()
window.vcData = new ProfileData()
registerfn = ->
  if regData.isValid()
    X.register(regData.get('username').trim(), regData.get('password1'))
savefn = ->
  data =
    fullname: vcData.get('fullname').trim()
    nickname: vcData.get('nickname').trim()
  okcb = ->
    console.debug('vcard is set!', arguments)
    $('[data-step="vcard"]').addClass('uk-hidden')
    location.href = '/'
  failcb = ->
    console.warn('vcard is NOT set!', arguments)
    $('[data-msg="save-failed"]').removeClass('uk-hidden')
  file = $('#avatar').get(0).files[0]
  if file?
    reader = new FileReader()
    reader.onloadend = ->
      _(data).extend(avatar: reader.result)
      X.savevCard(data, okcb, failcb)
    reader.readAsDataURL(file)
  else
    X.savevCard(data, okcb, failcb)
window.regRivet = rivets.bind($('[data-form="registration"]'), data: regData, register: registerfn)
window.vcRivet = rivets.bind($('[data-form="vcard"]'), data: vcData, save: savefn)
window.X = new Tram.XMPPInterface()
X.on 'register', ->
  $('[data-step="registration"]').removeClass('uk-hidden')
X.on 'registered', ->
  X.finishRegistration()
  $('[data-step="registration"]').addClass('uk-hidden')
X.on 'regifail', ->
  $('[data-msg="registration-closed"]').removeClass('uk-hidden')
X.on 'conflict', ->
  regData.set('username-errors', ['A user with this username already exists.'])
X.on 'notacceptable', ->
  $('[data-msg="registration-failed"]').removeClass('uk-hidden')
X.on 'connected', ->
  vcData.set('nickname', regData.get('username').trim())
  $('[data-step="vcard"]').removeClass('uk-hidden')
  $('#fullname').focus()
X.startRegistration()
$('[data-form="registration"], [data-form="vcard"]').each ->
  $form = $(@)
  $form.find('input').on 'keydown', (e) ->
    if (not @required or @value isnt '') and e.keyCode is 13
      e.preventDefault()
      index = $form.find('input').index(@)
      $next = $form.find('input').eq(index + 1)
      if $next.length isnt 0
        $next.focus()
      else
        $form.find('button').trigger('click')