/*
 * Licensed Materials - Property of IBM
 *
 * IBM Cognos Products: SHARE
 *
 * (C) Copyright IBM Corp. 2015, 2018
 *
 * US Government Users Restricted Rights - Use, duplication or disclosure
 * restricted by GSA ADP Schedule Contract with IBM Corp.
 */

 define([
    'underscore',
    'bi/glass/app/ContentView',
    'bi/content_apps/utils/GlassContextHelper',
    'jquery',
    'q',
    'bi/sharecommon/utils/simpledoT',
    'text!bi/notifications/templates/preview.html',
    'bi/sharecommon/utils/translator',
    'bi/commons/utils/ContentFormatter',
    'bi/commons/utils/Utils',
    'bi/notifications/app/n10nController',
    'moment-timezone'
], function(_,View, GlassContextHelper, $, Q, dot, previewTemplate, t, stringFormater, Utils, controller, moment) {

	var DEFAULT_DELAY = 500;
	var __STANDAR_DATE_TIME_FORMAT = 'lll';

	var previewView = View.extend({

		init: function(options){
			this.events = {
				'primaryaction .headerBack': 'close'
			};
			previewView.inherited('init', this, arguments);

			this.data = {};

			$.extend(this, options);

			this.$currentMessageItem = this.messageList.$el.find('#' + this.data.id);
			this.timezone = this.glassContext.services.userProfile.preferences.timeZoneID;
			this.contentLocale = this.glassContext.services.userProfile.preferences.contentLocale || "en-us";
		},

		setFocus: function() {
			this.$el.find('.n10n_preview_links .n10n_preview_link:first').focus();
		},

		/**
		 * Set the events for the notification detail view
		 *
		 * @param links_map a map from unique id to link for each link
		 */
		setEvents: function(links_map) {
		    var glassContext = this.glassContext;
		    this.$el.find('.n10n_preview_link').click(function(event) {
				// on link click, launch saved output viewer
				var link = links_map[event.target.id];
				this.openLink(link);
		    }.bind(this));

		    // Click event to delete the notification
		    this.$el.find(".n10n_delete_icon:not(.clickBound)").addClass('clickBound').on('primaryaction', function(event) {
				if(this.messageList) {
					var deletionRequest = {
						messageId: this.data.id,
						pending: true
					};

					if (this.glassContext.services.userProfile.preferences.accessibilityFeatures) {
						this.glassContext.appController.showMessage(t.translate('delete_notification_confirm_message'), t.translate('delete_confirm'), 'info', ['ok','cancel'], undefined, function(evt) {
							if (evt.btn==='ok') {
								this._completeNotificationDelete(deletionRequest);
								this._focusNextMessage();
							}
						}.bind(this));
					} else {
						this.close();
						this.$currentMessageItem.hide(DEFAULT_DELAY);

						this.glassContext.appController.showToast(t.translate('delete_notification_message'), {
							'type': 'info',
							'btnLabel' : t.translate('delete_undo'),
							'callback' : function() {
								deletionRequest.pending = false;
								this.messageList.$el.find('#' + deletionRequest.messageId).show(DEFAULT_DELAY);
							}.bind(this),
							'newestOnTop' : true,
							'preventDuplicates' : false,
							'timeOut': 6000,
							'extendedTimeOut': 1000,
							'onHidden' : function() {this._completeNotificationDelete(deletionRequest)}.bind(this)
						});

						this._focusNextMessage();
					}
				}
			}.bind(this));
		},

		/**
		 * Well set the keyboard focus to the next message in the notification list
		 * or if deleting the last message set it to the previous message.
		 * If no messages are found then it doesn't set focus to anything.
		 */
		_focusNextMessage: function() {
			// Make sure the notification view has at least one message in it
			this.messageList.focusNextMessage(this.$currentMessageItem);
		},

		_completeNotificationDelete: function(deleteRequest) {
			var $pendingDeleteMessage = this.messageList.$el.find('#' + deleteRequest.messageId);
			var context = {
				glassContext: this.glassContext
			};

			if(deleteRequest.pending) {
				controller.deleteNotification(deleteRequest.messageId, context).done(function(){
					$pendingDeleteMessage.remove();
				});
			}
		},

		openLink: function(link) {
			var deferred = Q.defer();
			// We only care about the output object (link.id). Unfortunately getObjectProperties assumes we are dealing
			// with reports so it looks for reportId instead of id.
			var properties = {
				reportId: link.id
			};

			var context = {glassContext: this.glassContext};

			controller.getObjectProperties(properties, context).then(function(newProperties) {
				// user attached an artifact
				// Turn reportId back into outputId since it is actually the output object
				// and restore original reportId in case client can make use of it
				newProperties.outputId = newProperties.reportId;
				newProperties.reportId = link.reportId;
				this._openObject(newProperties);

				deferred.resolve();
			}.bind(this)).fail(function(xhr, status, error) {
				// May want to consider removing this error handling to let client deal with
				// missing output object.
				this.glassContext.appController.showToast(t.translate('error_object_not_found'),
						{
							'type': 'error',
							'newestOnTop' : true,
							'preventDuplicates' : false,
							'timeOut': 6000,
							'extendedTimeOut': 1000
						});
				deferred.reject();
			}.bind(this));

			return deferred.promise;
		},

		_openObject: function(context) {
			this.glassContext.appController.hideSlideOut();
			this.glassContext.appController.openAppView( undefined, {
				content: {
					objRef: context.outputId,
					reportId: context.reportId
				}
			});
		},

		close: function() {
			this.slideout.hide();
		},

		render: function() {
			var deferred = Q.defer();

			//clear the existing second panel content
			this.$el.find('.preview_tab_panel').remove();

			GlassContextHelper.getContentLocales(this.glassContext).then(function(contentLocales) {
				this._renderPreview(contentLocales);
				deferred.resolve(this);
			}.bind(this)).fail(function() {
				console.warn("failed to retrieve the current content locales");
				this._renderPreview();
				deferred.resolve(this);
			}.bind(this));

			return deferred.promise;
		},

		_renderPreview: function(contentLocales) {
			var data = this.data || {};
			var previewAttrs = {
				id: data.id,
				type_tab: t.translate("type_tab"),
				status_tab: t.translate("status_tab"),
				owner_tab: t.translate("owner_tab"),
				type_name: data.type || "",
				owner_name: _.escape(data.sender) || "",
				subject: _.escape(data.subject) || "",
				created: moment(data.created).locale(this.contentLocale).tz(this.timezone).format(__STANDAR_DATE_TIME_FORMAT),
				content: _.escape(data.body) || "",
				links: data.links || [],
				//HARDCODE ALERT: hard core "read" for now. Wait and see the future content UI
				status_name: t.translate("status_name"),
				output_links_description: t.translate('preview_output_links_description'),
				deleteLabel: t.translate('delete_message_label'),
				back: t.translate('back')
			};

			var links_map=[];
			if (data.links) {
				for (var i = 0; i<data.links.length; i++) {
					var details = this._getLinkDetails(data.links[i], contentLocales);
					if(details && details !== "") {
						data.links[i].displayName = _.escape(data.links[i].displayName + details);
					} else {
						data.links[i].displayName = _.escape(data.links[i].displayName);
					}
					links_map[data.links[i].id] = data.links[i];
				}
			}

			var msg = dot.simpleTemplate(previewTemplate);
			this.$el.html(msg(previewAttrs));
			this.setEvents(links_map);
			this._setIcons();
			this.formatLinks();
		},

		_getLinkDetails: function(link, contentLocales) {
			var details;
			if (link.format && link.format !== "") {
				var linkFormat = this.l10nFormat(link.format);
				details = " (" + linkFormat;
				if (link.locale && link.locale !== "") {
					if (linkFormat !== "") {
						details += ", ";
					}
					details += this.l10nLocale(link.locale, contentLocales);
				}
				details += ")";
			}
			return details;
		},

		l10nLocale: function(locale, contentLocales) {
			if (contentLocales && locale in contentLocales) {
				return contentLocales[locale];
			}
			return locale;
		},

		l10nFormat: function(format) {
			switch(format) {
				case 'HTML': return t.translate("schedule_format_web");
				case 'XHTML': return t.translate("schedule_format_web");
				case 'PDF': return t.translate("schedule_format_pdf");
				case 'CSV': return t.translate("schedule_format_csv");
				case 'XML': return t.translate("schedule_format_xml");
				case 'spreadsheetML': return t.translate("schedule_format_xlsx");
				case 'xlsxData': return t.translate("schedule_format_xlsx_data");
				default: {
					console.warn("Unknown format: ", format);
					return "";
				}
			};
		},

		_setIcons: function(){
			var deleteIcon = this.$el.find(".n10n_delete_icon").has("span");
			Utils.setIcon(deleteIcon, 'common-remove-trash', t.translate('delete_notification'));
		},

		formatLinks: function() {
			var links = this.$el.find('.n10n_preview_link');

			for(var i = 0; i < links.length; i++) {
				stringFormater.middleShortenString(links[i]);
			}
		}
    });

    return previewView;

});