Application.Directives.directive 'coupon', [ 'Coupon', 'growl', '_t', (Coupon, growl, _t) ->
  {
    restrict: 'E'
    scope:
      show: '='
    templateUrl: '<%= asset_path "shared/_coupon.html" %>'
    link: (scope, element, attributes) ->

      # default: do not enable code input
      scope.input = false

      # default: coupon code is not valid
      scope.valid = false

      # for dirty checking and request response waiting
      scope.pending = true

      # binding for the code inputed
      scope.couponCode = null


      scope.closeAlert = (index) ->
        scope.alerts.splice(index, 1);

      ##
      # Callback to validate the code
      ##
      scope.validateCode = ->
        unless scope.couponCode == ''
          Coupon.validate {code: scope.couponCode}, (res) ->
            scope.valid = true
            growl.success(res.percent_off+' % de réduction')
            console.info(res)
          , (err) ->
            scope.valid = false
            growl.error(_t(err.data.status))
            console.error(err)
  }
]