MOBILE-4368 analytics: Limit cases where setting is displayed

Now the setting will only be displayed if there is an active handler

src/core/features/settings/pages/general/general.html

@@ -75,7 +75,7 @@
             </ion-label>
             <ion-toggle [(ngModel)]="debugDisplay" (ionChange)="debugDisplayChanged($event)" slot="end"></ion-toggle>
         </ion-item>
-        <ion-item class="ion-text-wrap" *ngIf="analyticsSupported">
+        <ion-item class="ion-text-wrap" *ngIf="analyticsAvailable">
             <ion-label>
                 <p class="item-heading">{{ 'core.settings.enableanalytics' | translate }}</p>
                 <p>{{ 'core.settings.enableanalyticsdescription' | translate }}</p>

src/core/features/settings/pages/general/general.ts

@@ -44,7 +44,7 @@ export class CoreSettingsGeneralPage {
     selectedZoomLevel = CoreZoomLevel.NONE;
     richTextEditor = true;
     debugDisplay = false;
-    analyticsSupported = false;
+    analyticsAvailable = false;
     analyticsEnabled = false;
     colorSchemes: CoreColorScheme[] = [];
     selectedScheme: CoreColorScheme = CoreColorScheme.LIGHT;
@@ -101,8 +101,8 @@ export class CoreSettingsGeneralPage {
 
         this.debugDisplay = await CoreConfig.get(CoreConstants.SETTINGS_DEBUG_DISPLAY, false);
 
-        this.analyticsSupported = CoreAnalytics.hasHandlers();
-        if (this.analyticsSupported) {
+        this.analyticsAvailable = await CoreAnalytics.isAnalyticsAvailable();
+        if (this.analyticsAvailable) {
             this.analyticsEnabled = await CoreConfig.get(CoreConstants.SETTINGS_ANALYTICS_ENABLED, true);
         }
 

src/core/services/analytics.ts

@@ -57,6 +57,29 @@ export class CoreAnalyticsService extends CoreDelegate<CoreAnalyticsHandler> {
         }
     }
 
+    /**
+     * Check if analytics is available for the app/site.
+     *
+     * @returns True if available, false otherwise.
+     */
+    async isAnalyticsAvailable(): Promise<boolean> {
+        if (Object.keys(this.enabledHandlers).length > 0) {
+            // There is an enabled handler, analytics is available.
+            return true;
+        }
+
+        // Check if there is a handler that is enabled at app level (enabled handlers are only set when logged in).
+        const enabledList = await Promise.all(Object.values(this.handlers).map(handler => {
+            if (!handler.appLevelEnabled) {
+                return false;
+            }
+
+            return handler.isEnabled();
+        }));
+
+        return enabledList.includes(true);
+    }
+
     /**
      * Log an event for the current site.
      *
@@ -108,6 +131,11 @@ export const CoreAnalytics = makeSingleton(CoreAnalyticsService);
  */
 export interface CoreAnalyticsHandler extends CoreDelegateHandler {
 
+    /**
+     * If true it means that the handler is enabled or not for the whole app, it doesn't depend on the site.
+     */
+    appLevelEnabled?: boolean;
+
     /**
      * Log an event.
      *