external delivery sample

external.js

(function($) {
    MyExternal = (function() {
      function MyExternal(deliveryId, fieldId) {
        this.deliveryId = deliveryId;
        this.fieldId = fieldId;
        this.bind();
      }

      MyExternal.prototype.input = function() {
        return this.element || (this.element = $(this.inputSelector));
      };

      MyExternal.prototype.bind = function() {
        return $(document).on('inited:insales:checkout:deliveries', (function(_this) {
          return function(e, data) {
            var myDelivery;
            myDelivery = data.deliveries[_this.deliveryId];
            if (!myDelivery || !myDelivery.available) {
              return;
            }
            _this.order = data.order;
            _this.inputSelector = myDelivery.html_id;
            try {
              return _this.input().trigger('update:insales:delivery', $.extend(_this.calc(), {
                is_external: true
              }));
            } catch (_error) {
              _this.input().trigger('disable:insales:delivery');
              return _this.input().trigger('error:insales:delivery', 'Доставка не доступна');
            }
          };
        })(this));
      };

      MyExternal.prototype.calc = function() {
        if (this.order.shipping_address.city === 'Москва') {
          return {
            price: 100,
            fields_values: [
              {
                field_id: this.fieldId,
                value: '123'
              }
            ]
          };
        }
        if (this.order.shipping_address.city === 'Санкт-Петербург') {
          throw 'not available';
        }
        return {
          price: 150,
          fields_values: [
            {
              field_id: this.fieldId,
              value: '321'
            }
          ]
        };
      };
      return MyExternal
    })();