Refactor application initialization & allow public user load

src/app/app.component.html

@@ -1,6 +1,6 @@
 <ion-app class="dark">
   <ion-split-pane contentId="main-content" *ngIf="ready$ | async">
-    <ion-menu class="sidebar" contentId="main-content" content="content" type="push" side="start">
+    <ion-menu class="sidebar" contentId="main-content" content="content" type="push" side="start" *ngIf="!api.isPublicUser">
       <ion-header>
         <ion-toolbar color="primary">
           <ion-title style="font-weight: bold; color: white;">{{ appName }}

src/app/app.component.ts

@@ -1,4 +1,4 @@
-import {AfterViewInit, Component, ElementRef, OnInit, ViewChild, HostListener, Host} from '@angular/core';
+import {Component, OnInit, ViewChild, HostListener, Host} from '@angular/core';
 
 import {
   AlertController,
@@ -23,6 +23,7 @@ import {NodeTypeIcons} from './structures/node-types';
 import {NavigationService} from './service/navigation.service';
 import {DatabaseService} from './service/db/database.service';
 import {EditorService} from './service/editor.service';
+import {debug} from './utility';
 
 @Component({
   selector: 'app-root',
@@ -88,7 +89,7 @@ export class AppComponent implements OnInit {
     private platform: Platform,
     private splashScreen: SplashScreen,
     private statusBar: StatusBar,
-    private api: ApiService,
+    public readonly api: ApiService,
     protected router: Router,
     protected alerts: AlertController,
     protected popover: PopoverController,
@@ -99,27 +100,7 @@ export class AppComponent implements OnInit {
     protected toasts: ToastController,
     protected db: DatabaseService,
     protected editor: EditorService,
-  ) {
-    this.initializeApp();
-  }
-
-  async _doInit() {
-    await this.db.createSchemata();
-
-    this.reloadMenuItems().subscribe(() => {
-      this.ready$.next(true);
-      setTimeout(() => {
-        this.loader.dismiss();
-        this.menuTree.treeModel.expandAll();
-      }, 10);
-
-      if ( !this.versionInterval ) {
-        this.versionInterval = setInterval(() => {
-          this.checkNewVersion();
-        }, 1000 * 60 * 5); // Check for new version every 5 mins
-      }
-    });
-  }
+  ) { }
 
   async checkNewVersion() {
     if ( !this.showedNewVersionAlert && await this.session.newVersionAvailable() ) {
@@ -144,20 +125,8 @@ export class AppComponent implements OnInit {
   }
 
   ngOnInit() {
-    if ( !this.initialized$.getValue() ) {
-      this.navService.sidebarRefresh$.subscribe(([_, quiet]) => {
-        this.onMenuRefresh(quiet);
-      });
-
-      const sub = this.initialized$.subscribe((didInit) => {
-        if (didInit) {
-          this._doInit();
-          sub.unsubscribe();
-        }
-      });
-    } else {
-      this._doInit();
-    }
+    debug('Initializing application.');
+    this.initializeApp();
   }
 
   showOptions($event) {
@@ -262,7 +231,7 @@ export class AppComponent implements OnInit {
         });
       } else if ( result.data === 'export_html' ) {
         this.exportTargetAsHTML();
-      };
+      }
     });
 
     await popover.present();
@@ -420,19 +389,24 @@ export class AppComponent implements OnInit {
   }
 
   async initializeApp() {
-    console.log('app', this);
+    debug('app', this);
     this.loader = await this.loading.create({
       message: 'Starting up...',
       cssClass: 'noded-loading-mask',
       showBackdrop: true,
     });
 
+    debug('Initializing platform and database...');
     await this.loader.present();
     await this.platform.ready();
+    await this.db.createSchemata();
 
     let toast: any;
+
+    debug('Subscribing to offline changes...');
     this.api.offline$.subscribe(async isOffline => {
       if ( isOffline && !this.showedOfflineAlert ) {
+        debug('Application went offline!');
         toast = await this.toasts.create({
           cssClass: 'compat-toast-container',
           message: 'Uh, oh! It looks like you\'re offline. Some features might not work as expected...',
@@ -441,39 +415,64 @@ export class AppComponent implements OnInit {
         this.showedOfflineAlert = true;
         await toast.present();
       } else if ( !isOffline && this.showedOfflineAlert ) {
+        debug('Appliation went online!');
         await toast.dismiss();
         this.showedOfflineAlert = false;
         await this.api.syncOfflineData();
       }
     });
 
+    debug('Getting initial status...');
     let stat: any = await this.session.stat();
+    debug('Got stat:', stat);
 
-    if ( !stat.authenticated_user ) {
+    if ( stat.public_user ) {
+      this.api.isPublicUser = true;
+    }
+
+    if ( stat.authenticated_user ) {
+      this.api.isAuthenticated = true;
+    }
+
+    this.api.systemBase = stat.system_base;
+
+    if ( !this.api.isAuthenticated || this.api.isPublicUser ) {
+      debug('Unauthenticated or public user...');
       if ( !this.api.isOffline ) {
+        debug('Trying to resume session...');
         await this.api.resumeSession();
+        debug('Checking new status...');
         stat = await this.session.stat();
+        debug('Got session resume stat:', stat);
+
+        this.api.isAuthenticated = stat.authenticated_user;
+        this.api.isPublicUser = stat.public_user;
 
         if ( !stat.authenticated_user ) {
+          debug('Not authenticated! Redirecting.');
           window.location.href = `${stat.system_base}start`;
           return;
         }
       } else {
+        debug('Unauthenticated offline user. Purging local data!');
         await this.db.purge();
         window.location.href = `${stat.system_base}start`;
         return;
       }
     }
 
+    debug('Set app name and system base:', stat.app_name, stat.system_base);
     this.session.appName = stat.app_name;
     this.session.systemBase = stat.system_base;
 
+    debug('Initializing session...');
     await this.session.initialize();
 
     if ( this.session.get('user.preferences.dark_mode') ) {
       this.toggleDark();
     }
 
+    debug('Hiding native splash screen & setting status bar styles...');
     await this.statusBar.styleDefault();
     await this.splashScreen.hide();
 
@@ -495,11 +494,13 @@ export class AppComponent implements OnInit {
       }
     }
 
-    if ( this.isPrefetch() ) {
-      this.loader.message = 'Downloading data...'; // TODO actually do the prefetch
+    if ( this.isPrefetch() && !this.api.isPublicUser ) {
+      debug('Pre-fetching offline data...');
+      this.loader.message = 'Downloading data...';
       try {
         await this.api.prefetchOfflineData();
       } catch (e) {
+        debug('Pre-fetch error:', e);
         this.toasts.create({
           cssClass: 'compat-toast-container',
           message: 'An error occurred while pre-fetching offline data. Not all data was saved.',
@@ -514,13 +515,37 @@ export class AppComponent implements OnInit {
 
     this.initialized$.next(true);
 
-    if ( this.session.get('user.preferences.default_page') ) {
+    if ( !this.api.isPublicUser && this.session.get('user.preferences.default_page') ) {
+      debug('Navigating to default page!');
       const id = this.session.get('user.preferences.default_page');
       const node = this.findNode(id);
       if ( node ) {
         this.navigateEditorToNode(node);
       }
     }
+
+    debug('Creating menu subscription...');
+    this.navService.sidebarRefresh$.subscribe(([_, quiet]) => {
+      this.onMenuRefresh(quiet);
+    });
+
+    debug('Reloading menu items...');
+    this.reloadMenuItems().subscribe(() => {
+      debug('Reloaded menu items. Displaying interface.');
+      this.ready$.next(true);
+
+      setTimeout(() => {
+        this.loader.dismiss();
+        this.menuTree?.treeModel?.expandAll();
+      }, 10);
+
+      if ( !this.versionInterval ) {
+        this.versionInterval = setInterval(() => {
+          debug('Checking for new application version.');
+          this.checkNewVersion();
+        }, 1000 * 60 * 5); // Check for new version every 5 mins
+      }
+    });
   }
 
   async doPrefetch() {

src/app/home/home.page.html

@@ -8,12 +8,14 @@
   </ion-buttons>
 </ion-toolbar>
 
-
 <ion-grid style="height: 100%; justify-content: center; display: flex; flex-direction: column; font-size: 24pt; color: #ccc;">
-  <ion-row align-items-center>
+  <ion-row align-items-center *ngIf="!api.isPublicUser">
     <ion-col>Hi, there! Select or create a page to get started.</ion-col>
   </ion-row>
-  <ion-row align-items-center style="margin-top: 30px;">
+  <ion-row align-items-center style="margin-top: 30px;" *ngIf="!api.isPublicUser">
     <ion-col>(You can press <code>Ctrl</code> + <code>/</code> to search everywhere.)</ion-col>
   </ion-row>
+  <ion-row align-items-center *ngIf="api.isPublicUser">
+    Redirecting...
+  </ion-row>
 </ion-grid>

src/app/home/home.page.ts

@@ -1,15 +1,28 @@
-import { Component } from '@angular/core';
+import {Component, OnInit} from '@angular/core';
 import {ApiService} from '../service/api.service';
+import {isDebug, debug} from '../utility';
 
 @Component({
   selector: 'app-home',
   templateUrl: 'home.page.html',
   styleUrls: ['home.page.scss'],
 })
-export class HomePage {
+export class HomePage implements OnInit {
 
   constructor(
-      protected api: ApiService,
+      public readonly api: ApiService,
   ) {}
 
+  ngOnInit() {
+    if ( !this.api.isAuthenticated || this.api.isPublicUser ) {
+      if ( isDebug() ) {
+        debug('Forcing authentication...');
+        setTimeout(() => {
+          this.api.forceRestart();
+        }, 2000);
+      } else {
+        this.api.forceRestart();
+      }
+    }
+  }
 }

src/app/service/api.service.ts

@@ -13,6 +13,7 @@ import {DatabaseEntry} from './db/DatabaseEntry';
 import {FileGroup} from './db/FileGroup';
 import {Page} from './db/Page';
 import {PageNode} from './db/PageNode';
+import {debug} from '../utility';
 
 export class ResourceNotAvailableOfflineError extends Error {
   constructor(msg = 'This resource is not yet available offline on this device.') {
@@ -30,6 +31,9 @@ export class OfflinePrefetchWouldOverwriteLocalDataError extends Error {
   providedIn: 'root'
 })
 export class ApiService {
+  public isAuthenticated = false;
+  public isPublicUser = false;
+  public systemBase?: string;
   protected baseEndpoint: string = environment.backendBase;
   protected statUrl: string = environment.statUrl;
   protected versionUrl: string = environment.versionUrl;
@@ -149,6 +153,10 @@ export class ApiService {
     });
   }
 
+  public forceRestart() {
+    window.location.href = `${this.systemBase || '/'}start`;
+  }
+
   public checkOnline(): Promise<boolean> {
     return new Promise(res => {
       fetch(this.statUrl).then(resp => {
@@ -170,6 +178,10 @@ export class ApiService {
   }
 
   public async needsSync() {
+    if ( !this.isAuthenticated || this.isPublicUser ) {
+      return false;
+    }
+
     const offlineKV = await this.db.getKeyValue('needs_online_sync');
     return Boolean(offlineKV.data);
   }
@@ -456,6 +468,10 @@ export class ApiService {
 
   public getDeviceToken(): Promise<string> {
     return new Promise(async (res, rej) => {
+      if ( this.isPublicUser ) {
+        return res();
+      }
+
       const tokenKV = await this.db.getKeyValue('device_token');
       if ( !tokenKV.data && this.isOffline ) {
         return rej(new ResourceNotAvailableOfflineError());
@@ -483,6 +499,11 @@ export class ApiService {
     return new Promise(async (res, rej) => {
       if ( !this.isOffline ) {
         this.getDeviceToken().then(token => {
+          debug('Got device token:', token);
+          if ( !token ) {
+            return res();
+          }
+
           this.post(`/session/resume/${token}`).subscribe({
             next: result => {
               res();

src/app/utility.ts

@@ -1,3 +1,4 @@
+import {environment} from '../environments/environment';
 
 export function uuid_v4() {
     // @ts-ignore
@@ -17,3 +18,29 @@ export function debounce(func: (...args: any[]) => any, timeout?: number) {
         timer = setTimeout(next, timeout > 0 ? timeout : 300);
     };
 }
+
+export function debugRun(closure: any) {
+    if ( typeof closure === 'function' ) {
+        return closure();
+    }
+}
+
+export function isDebug() {
+    return environment.outputDebug;
+}
+
+export function debug(...out: any[]) {
+    const caller = (new Error())?.stack?.split('\n')?.[1]?.split('@')?.[0]?.replace(/[\/\\<]/g, '');
+
+    // Define different types of styles
+    const baseStyles = [
+        'color: #fff',
+        'background-color: #449',
+        'padding: 2px 4px',
+        'border-radius: 2px'
+    ].join(';');
+
+    if ( environment.outputDebug ) {
+        console.log(`%c${caller}`, baseStyles, ...out);
+    }
+}

src/environments/environment.prod.ts

@@ -3,4 +3,5 @@ export const environment = {
   backendBase: '/api/v1',
   statUrl: '/stat?ngsw-bypass',
   versionUrl: '/i/version.html?ngsw-bypass',
+  outputDebug: false,
 };

src/environments/environment.ts

@@ -7,6 +7,7 @@ export const environment = {
   backendBase: '/link_api/api/v1',
   statUrl: '/link_api/stat?ngsw-bypass',
   versionUrl: '/link_api/assets/version.html?ngsw-bypass',
+  outputDebug: true,
 };
 
 /*