/**
 * An element which displays the billing options for a user or an organization.
 */
angular.module('quay').directive('billingOptions', function () {
  var directiveDefinitionObject = {
    priority: 0,
    templateUrl: '/static/directives/billing-options.html',
    replace: false,
    transclude: false,
    restrict: 'C',
    scope: {
      'user': '=user',
      'organization': '=organization'
    },
    controller: function($scope, $element, PlanService, ApiService) {
      $scope.invoice_email = false;
      $scope.currentCard = null;

      // Listen to plan changes.
      PlanService.registerListener(this, function(plan) {
        if (plan && plan.price > 0) {
          update();
        }
      });

      $scope.$on('$destroy', function() {
        PlanService.unregisterListener(this);
      });

      $scope.isExpiringSoon = function(cardInfo) {
        var current = new Date();
        var expires = new Date(cardInfo.exp_year, cardInfo.exp_month, 1);
        var difference = expires - current;
        return difference < (60 * 60 * 24 * 60 * 1000 /* 60 days */);
      };

      $scope.changeInvoiceEmailAddress = function() {
        bootbox.prompt('Enter the email address for receiving receipts', function(email) {
          // Copied from Angular.
          var EMAIL_REGEXP = /^[a-z0-9!#$%&'*+/=?^_`{|}~.-]+@[a-z0-9-]+(\.[a-z0-9-]+)*$/i;
          if (!email || !EMAIL_REGEXP.test(email)) {
            return;
          }

          $scope.obj['invoice_email_address'] = email;

          var errorHandler = ApiService.errorDisplay('Could not change user details');
          ApiService.changeDetails($scope.organization, $scope.obj).then(function(resp) {
            $scope.working = false;
          }, errorHandler);
        });
      };

      $scope.changeCard = function() {
        var previousCard = $scope.currentCard;
        $scope.changingCard = true;
        var callbacks = {
          'opened': function() { $scope.changingCard = true; },
          'closed': function() { $scope.changingCard = false; },
          'started': function() { $scope.currentCard = null; },
          'success': function(resp) {
             $scope.currentCard = resp.card;
             $scope.changingCard = false;
          },
          'failure': function(resp) {
             $scope.changingCard = false;
             $scope.currentCard = previousCard;

             if (!PlanService.isCardError(resp)) {
               $('#cannotchangecardModal').modal({});
             }
          }
        };

        PlanService.changeCreditCard($scope, $scope.organization ? $scope.organization.name : null, callbacks);
      };

      $scope.getCreditImage = function(creditInfo) {
        if (!creditInfo || !creditInfo.type) { return 'credit.png'; }

        var kind = creditInfo.type.toLowerCase() || 'credit';
        var supported = {
          'american express': 'amex',
          'credit': 'credit',
          'diners club': 'diners',
          'discover': 'discover',
          'jcb': 'jcb',
          'mastercard': 'mastercard',
          'visa': 'visa'
        };

        kind = supported[kind] || 'credit';
        return kind + '.png';
      };

      var update = function() {
        if (!$scope.user && !$scope.organization) { return; }
        $scope.obj = $scope.user ? $scope.user : $scope.organization;
        $scope.invoice_email = $scope.obj.invoice_email;

        // Load the credit card information.
        PlanService.getCardInfo($scope.organization ? $scope.organization.name : null, function(card) {
          $scope.currentCard = card;
        });
      };

      var save = function() {
        $scope.working = true;

        var errorHandler = ApiService.errorDisplay('Could not change user details');
        ApiService.changeDetails($scope.organization, $scope.obj).then(function(resp) {
          $scope.working = false;
        }, errorHandler);
      };

      var checkSave = function() {
        if (!$scope.obj) { return; }
        if ($scope.obj.invoice_email != $scope.invoice_email) {
          $scope.obj.invoice_email = $scope.invoice_email;
          save();
        }
      };

      $scope.$watch('invoice_email', checkSave);
      $scope.$watch('organization', update);
      $scope.$watch('user', update);
    }
  };
  return directiveDefinitionObject;
});