constructor(mainMenuDelegate: CoreMainMenuDelegate, mainMenuHandler: AddonCompetencyMainMenuHandler,
            courseOptionsDelegate: CoreCourseOptionsDelegate, courseOptionHandler: AddonCompetencyCourseOptionHandler,
            userDelegate: CoreUserDelegate, userHandler: AddonCompetencyUserHandler) {

        mainMenuDelegate.registerHandler(mainMenuHandler);
        courseOptionsDelegate.registerHandler(courseOptionHandler);
        userDelegate.registerHandler(userHandler);
    }

    constructor(mainMenuDelegate: CoreMainMenuDelegate, contentLinksDelegate: CoreContentLinksDelegate,
            mainMenuHandler: CoreCoursesMainMenuHandler, courseLinkHandler: CoreCoursesCourseLinkHandler,
            indexLinkHandler: CoreCoursesIndexLinkHandler, myOverviewLinkHandler: CoreCoursesMyOverviewLinkHandler) {
        mainMenuDelegate.registerHandler(mainMenuHandler);

        contentLinksDelegate.registerHandler(courseLinkHandler);
        contentLinksDelegate.registerHandler(indexLinkHandler);
        contentLinksDelegate.registerHandler(myOverviewLinkHandler);
    }

    constructor(mainMenuDelegate: CoreMainMenuDelegate, contentLinksDelegate: CoreContentLinksDelegate,
            mainMenuHandler: CoreDashboardMainMenuHandler, courseLinkHandler: CoreCoursesCourseLinkHandler,
            indexLinkHandler: CoreCoursesIndexLinkHandler, dashboardLinkHandler: CoreCoursesDashboardLinkHandler) {
        mainMenuDelegate.registerHandler(mainMenuHandler);

        contentLinksDelegate.registerHandler(courseLinkHandler);
        contentLinksDelegate.registerHandler(indexLinkHandler);
        contentLinksDelegate.registerHandler(dashboardLinkHandler);
    }

 constructor(mainMenuDelegate: CoreMainMenuDelegate, menuHandler: AddonBlogMainMenuHandler,
         userHandler: AddonBlogUserHandler, userDelegate: CoreUserDelegate,
         courseOptionHandler: AddonBlogCourseOptionHandler, courseOptionsDelegate: CoreCourseOptionsDelegate,
         linkHandler: AddonBlogIndexLinkHandler, contentLinksDelegate: CoreContentLinksDelegate) {
     mainMenuDelegate.registerHandler(menuHandler);
     userDelegate.registerHandler(userHandler);
     courseOptionsDelegate.registerHandler(courseOptionHandler);
     contentLinksDelegate.registerHandler(linkHandler);
 }

    constructor(mainMenuDelegate: CoreMainMenuDelegate, mainMenuHandler: AddonNotificationsMainMenuHandler,
            settingsDelegate: CoreSettingsDelegate, settingsHandler: AddonNotificationsSettingsHandler,
            cronDelegate: CoreCronDelegate, cronHandler: AddonNotificationsCronHandler, zone: NgZone,
            appProvider: CoreAppProvider, utils: CoreUtilsProvider, sitesProvider: CoreSitesProvider,
            notificationsProvider: AddonNotificationsProvider, localNotifications: CoreLocalNotificationsProvider,
            linkHelper: CoreContentLinksHelperProvider, pushNotificationsDelegate: AddonPushNotificationsDelegate) {
        mainMenuDelegate.registerHandler(mainMenuHandler);
        settingsDelegate.registerHandler(settingsHandler);
        cronDelegate.register(cronHandler);

        const notificationClicked = (notification: any): void => {
            sitesProvider.isFeatureDisabled('CoreMainMenuDelegate_AddonNotifications', notification.site).then((disabled) => {
                if (disabled) {
                    // Notifications are disabled, stop.
                    return;
                }

                notificationsProvider.invalidateNotificationsList().finally(() => {
                    linkHelper.goInSite(undefined, 'AddonNotificationsListPage', undefined, notification.site);
                });
            });
        };

        if (appProvider.isDesktop()) {
            // Listen for clicks in simulated push notifications.
            localNotifications.registerClick(AddonNotificationsProvider.PUSH_SIMULATION_COMPONENT, notificationClicked);
        }

        // Register push notification clicks.
        pushNotificationsDelegate.on('click').subscribe((notification) => {
            if (utils.isTrueOrOne(notification.notif)) {
                // Execute the callback in the Angular zone, so change detection doesn't stop working.
                zone.run(() => {
                    notificationClicked(notification);
                });

                return true;
            }
        });
    }

    constructor(mainMenuDelegate: CoreMainMenuDelegate, gradesMenuHandler: CoreGradesMainMenuHandler,
            courseOptionHandler: CoreGradesCourseOptionHandler, courseOptionsDelegate: CoreCourseOptionsDelegate,
            contentLinksDelegate: CoreContentLinksDelegate, userLinkHandler: CoreGradesUserLinkHandler,
            overviewLinkHandler: CoreGradesOverviewLinkHandler, userHandler: CoreGradesUserHandler,
            userDelegate: CoreUserDelegate, eventsProvider: CoreEventsProvider, sitesProvider: CoreSitesProvider) {

        // Register handlers.
        mainMenuDelegate.registerHandler(gradesMenuHandler);
        courseOptionsDelegate.registerHandler(courseOptionHandler);
        contentLinksDelegate.registerHandler(userLinkHandler);
        contentLinksDelegate.registerHandler(overviewLinkHandler);
        userDelegate.registerHandler(userHandler);

        // Clear user profile handler cache.
        eventsProvider.on(CoreUserProvider.PROFILE_REFRESHED, (data) => {
            userHandler.clearViewGradesCache(data.courseId, data.userId);
        }, sitesProvider.getCurrentSiteId());

        eventsProvider.on(CoreEventsProvider.LOGOUT, () => {
            userHandler.clearViewGradesCache();
        }, sitesProvider.getCurrentSiteId());
    }

    constructor(mainMenuDelegate: CoreMainMenuDelegate, calendarHandler: AddonCalendarMainMenuHandler,
            initDelegate: CoreInitDelegate, calendarProvider: AddonCalendarProvider, loginHelper: CoreLoginHelperProvider,
            localNotificationsProvider: CoreLocalNotificationsProvider, updateManager: CoreUpdateManagerProvider) {
        mainMenuDelegate.registerHandler(calendarHandler);

        initDelegate.ready().then(() => {
            calendarProvider.scheduleAllSitesEventsNotifications();
        });

        localNotificationsProvider.registerClick(AddonCalendarProvider.COMPONENT, (data) => {
            if (data.eventid) {
                initDelegate.ready().then(() => {
                    calendarProvider.isDisabled(data.siteId).then((disabled) => {
                        if (disabled) {
                            // The calendar is disabled in the site, don't open it.
                            return;
                        }

                        loginHelper.redirect('AddonCalendarListPage', {eventId: data.eventid}, data.siteId);
                    });
                });
            }
        });

        // Allow migrating the table from the old app to the new schema.
        // In the old app some calculated properties were stored when it shouldn't. Filter only the fields we want.
        updateManager.registerSiteTableMigration({
            name: 'calendar_events',
            newName: AddonCalendarProvider.EVENTS_TABLE,
            filterFields: ['id', 'name', 'description', 'format', 'eventtype', 'courseid', 'timestart', 'timeduration',
                    'categoryid', 'groupid', 'userid', 'instance', 'modulename', 'timemodified', 'repeatid', 'visible', 'uuid',
                    'sequence', 'subscriptionid']
        });

        // Migrate the component name.
        updateManager.registerLocalNotifComponentMigration('mmaCalendarComponent', AddonCalendarProvider.COMPONENT);
    }

    constructor(mainMenuDelegate: CoreMainMenuDelegate, mainMenuHandler: AddonNotificationsMainMenuHandler,
            settingsDelegate: CoreSettingsDelegate, settingsHandler: AddonNotificationsSettingsHandler,
            cronDelegate: CoreCronDelegate, cronHandler: AddonNotificationsCronHandler, zone: NgZone,
            appProvider: CoreAppProvider, utils: CoreUtilsProvider, sitesProvider: CoreSitesProvider,
            notificationsProvider: AddonNotificationsProvider, localNotifications: CoreLocalNotificationsProvider,
            linkHelper: CoreContentLinksHelperProvider, pushNotificationsDelegate: AddonPushNotificationsDelegate,
            urlUtils: CoreUrlUtilsProvider, forumProvider: AddonModForumProvider) {

        mainMenuDelegate.registerHandler(mainMenuHandler);
        settingsDelegate.registerHandler(settingsHandler);
        cronDelegate.register(cronHandler);

        const notificationClicked = (notification: any): void => {

            // Temporary fix to make forum notifications work. This will be improved in next release.
            if (notification.moodlecomponent == 'mod_forum' && notification.name == 'posts') {
                sitesProvider.isFeatureDisabled('CoreCourseModuleDelegate_AddonModForum', notification.site).then((disabled) => {
                    if (disabled) {
                        // Forum is disabled, stop.
                        return;
                    }

                    const contextUrlParams = urlUtils.extractUrlParams(notification.contexturl),
                        pageParams: any = {
                            courseId: Number(notification.courseid),
                            discussionId: Number(contextUrlParams.d),
                        };

                    if (contextUrlParams.urlHash) {
                        pageParams.postId = Number(contextUrlParams.urlHash.replace('p', ''));
                    }

                    forumProvider.invalidateDiscussionPosts(pageParams.discussionId).catch(() => {
                        // Ignore errors.
                    }).then(() => {
                        linkHelper.goInSite(undefined, 'AddonModForumDiscussionPage', pageParams, notification.site);
                    });
                });
            } else {
                goToNotifications(notification);
            }
        };
        const goToNotifications = (notification: any): void => {
            sitesProvider.isFeatureDisabled('CoreMainMenuDelegate_AddonNotifications', notification.site).then((disabled) => {
                if (disabled) {
                    // Notifications are disabled, stop.
                    return;
                }

                notificationsProvider.invalidateNotificationsList().finally(() => {
                    linkHelper.goInSite(undefined, 'AddonNotificationsListPage', undefined, notification.site);
                });
            });
        };

        if (appProvider.isDesktop()) {
            // Listen for clicks in simulated push notifications.
            localNotifications.registerClick(AddonNotificationsProvider.PUSH_SIMULATION_COMPONENT, notificationClicked);
        }

        // Register push notification clicks.
        pushNotificationsDelegate.on('click').subscribe((notification) => {
            if (utils.isTrueOrOne(notification.notif)) {
                // Execute the callback in the Angular zone, so change detection doesn't stop working.
                zone.run(() => {
                    notificationClicked(notification);
                });

                return true;
            }
        });
    }

    constructor(mainMenuDelegate: CoreMainMenuDelegate, mainmenuHandler: AddonMessagesMainMenuHandler,
            contentLinksDelegate: CoreContentLinksDelegate, indexLinkHandler: AddonMessagesIndexLinkHandler,
            discussionLinkHandler: AddonMessagesDiscussionLinkHandler, sendMessageHandler: AddonMessagesSendMessageUserHandler,
            userDelegate: CoreUserDelegate, cronDelegate: CoreCronDelegate, syncHandler: AddonMessagesSyncCronHandler,
            network: Network, zone: NgZone, messagesSync: AddonMessagesSyncProvider, appProvider: CoreAppProvider,
            localNotifications: CoreLocalNotificationsProvider, messagesProvider: AddonMessagesProvider,
            sitesProvider: CoreSitesProvider, linkHelper: CoreContentLinksHelperProvider, updateManager: CoreUpdateManagerProvider,
            settingsHandler: AddonMessagesSettingsHandler, settingsDelegate: CoreSettingsDelegate,
            pushNotificationsDelegate: AddonPushNotificationsDelegate, utils: CoreUtilsProvider,
            addContactHandler: AddonMessagesAddContactUserHandler, blockContactHandler: AddonMessagesBlockContactUserHandler) {
        // Register handlers.
        mainMenuDelegate.registerHandler(mainmenuHandler);
        contentLinksDelegate.registerHandler(indexLinkHandler);
        contentLinksDelegate.registerHandler(discussionLinkHandler);
        userDelegate.registerHandler(sendMessageHandler);
        userDelegate.registerHandler(addContactHandler);
        userDelegate.registerHandler(blockContactHandler);
        cronDelegate.register(syncHandler);
        cronDelegate.register(mainmenuHandler);
        settingsDelegate.registerHandler(settingsHandler);

        // Sync some discussions when device goes online.
        network.onConnect().subscribe(() => {
            // Execute the callback in the Angular zone, so change detection doesn't stop working.
            zone.run(() => {
                messagesSync.syncAllDiscussions(undefined, true);
            });
        });

        const notificationClicked = (notification: any): void => {
            messagesProvider.isMessagingEnabledForSite(notification.site).then(() => {
                sitesProvider.isFeatureDisabled('CoreMainMenuDelegate_AddonMessages', notification.site).then((disabled) => {
                    if (disabled) {
                        // Messages are disabled, stop.
                        return;
                    }

                    messagesProvider.invalidateDiscussionsCache(notification.site).finally(() => {
                        linkHelper.goInSite(undefined, 'AddonMessagesIndexPage', undefined, notification.site);
                    });
                });
            });
        };

        if (appProvider.isDesktop()) {
            // Listen for clicks in simulated push notifications.
            localNotifications.registerClick(AddonMessagesProvider.PUSH_SIMULATION_COMPONENT, notificationClicked);
        }

        // Register push notification clicks.
        pushNotificationsDelegate.on('click').subscribe((notification) => {
            if (utils.isFalseOrZero(notification.notif)) {
                notificationClicked(notification);

                return true;
            }
        });

        // Allow migrating the table from the old app to the new schema.
        updateManager.registerSiteTableMigration({
            name: 'mma_messages_offline_messages',
            newName: AddonMessagesOfflineProvider.MESSAGES_TABLE,
            fields: [
                {
                    name: 'textformat',
                    delete: true
                }
            ]
        });

        // Migrate the component name.
        updateManager.registerLocalNotifComponentMigration('mmaMessagesPushSimulation',
                AddonMessagesProvider.PUSH_SIMULATION_COMPONENT);
    }

 constructor(mainMenuDelegate: CoreMainMenuDelegate, filesHandler: AddonFilesMainMenuHandler) {
     mainMenuDelegate.registerHandler(filesHandler);
 }