oroinc / orocommerce

define(function(require) {

    'use strict';

    var _ = require('underscore');

    var BaseView = require('oroui/js/app/views/base/view');

    var mediator = require('oroui/js/mediator');

    var LineItemView = require('oroshoppinglist/js/app/views/line-item-view');

    var LineItemsView;

    LineItemsView = BaseView.extend({

        lineItems: [],

        initialize: function() {

            this.initLayout().done(_.bind(this.handleLayoutInit, this));

            mediator.setHandler('get-line-items', _.bind(function() {

                return this.lineItems;

            }, this));

        },

        /**

         * Doing something after loading child components

         */

        handleLayoutInit: function(items) {

            this.lineItems = [];

            _.each(items, function(item) {

                if (item.view instanceof LineItemView) {

                    this.lineItems.push(item.view);

                    item.view.on('unit-changed', _.bind(this.unitChanged, this));

                }

            }, this);

            mediator.trigger('line-items-init', this.lineItems);

        },

        unitChanged: function(data) {

            _.each(this.lineItems, function(lineItem) {

                if (lineItem.lineItemId !== data.lineItemId &&

                    lineItem.model.get('id') === data.product &&

                    lineItem.model.get('unit') === data.unit

                ) {

                    mediator.execute('redirectTo', {url: window.location.href});

                }

            });

        }

    });

    return LineItemsView;

});