// (C) Copyright 2015 Martin Dougiamas
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

import { Component, ViewChild, AfterViewInit } from '@angular/core';
import { Platform, Nav } from 'ionic-angular';
import { StatusBar } from '@ionic-native/status-bar';
import { SplashScreen } from '@ionic-native/splash-screen';
import { CoreEventsProvider } from '../providers/events';
import { CoreLoginHelperProvider } from '../core/login/providers/helper';

@Component({
    templateUrl: 'app.html'
})
export class MyApp implements AfterViewInit {
    @ViewChild(Nav) navCtrl;
    rootPage:any = 'CoreLoginInitPage';

    constructor(private platform: Platform, statusBar: StatusBar, splashScreen: SplashScreen,
            private eventsProvider: CoreEventsProvider, private loginHelper: CoreLoginHelperProvider) {
        platform.ready().then(() => {
            // Okay, so the platform is ready and our plugins are available.
            // Here you can do any higher level native things you might need.
            statusBar.styleDefault();
            splashScreen.hide();
        });

    }

    /**
     * View has been initialized.
     */
    ngAfterViewInit() {
        this.loginHelper.setNavCtrl(this.navCtrl);

        // Go to sites page when user is logged out.
        this.eventsProvider.on(CoreEventsProvider.LOGOUT, () => {
            this.navCtrl.setRoot('CoreLoginSitesPage');
        });

        // Listen for session expired events.
        this.eventsProvider.on(CoreEventsProvider.SESSION_EXPIRED, (data) => {
            this.loginHelper.sessionExpired(data);
        });

        // Listen for passwordchange and usernotfullysetup events to open InAppBrowser.
        this.eventsProvider.on(CoreEventsProvider.PASSWORD_CHANGE_FORCED, (data) => {
            this.loginHelper.openInAppForEdit(data.siteId, '/login/change_password.php', 'core.forcepasswordchangenotice', true);
        });
        this.eventsProvider.on(CoreEventsProvider.USER_NOT_FULLY_SETUP, (data) => {
            this.loginHelper.openInAppForEdit(data.siteId, '/user/edit.php', 'core.usernotfullysetup');
        });

        // Listen for sitepolicynotagreed event to accept the site policy.
        this.eventsProvider.on(CoreEventsProvider.SITE_POLICY_NOT_AGREED, (data) => {
            this.loginHelper.sitePolicyNotAgreed(data.siteId);
        });

        // Check URLs loaded in any InAppBrowser.
        this.eventsProvider.on(CoreEventsProvider.IAB_LOAD_START, (event) => {
            this.loginHelper.inAppBrowserLoadStart(event.url);
        });

        // Check InAppBrowser closed.
        this.eventsProvider.on(CoreEventsProvider.IAB_EXIT, () => {
            this.loginHelper.waitingForBrowser = false;
            this.loginHelper.lastInAppUrl = '';
            this.loginHelper.checkLogout();
        });

        this.platform.resume.subscribe(() => {
            // Wait a second before setting it to false since in iOS there could be some frozen WS calls.
            setTimeout(() => {
                this.loginHelper.waitingForBrowser = false;
                this.loginHelper.checkLogout();
            }, 1000);
        });

        // @todo: Register observer to check if the app was launched via URL scheme.
        // $mmURLDelegate.register('mmLoginSSO', appLaunchedByURL);
    }
}