admin: check for preview generator

Signed-off-by: Varun Patil <radialapps@gmail.com>

lib/Controller/OtherController.php

@@ -87,6 +87,7 @@ class OtherController extends GenericApiController
                 'albums_enabled' => Util::albumsIsEnabled(),
                 'facerecognition_installed' => Util::facerecognitionIsInstalled(),
                 'facerecognition_enabled' => Util::facerecognitionIsEnabled(),
+                'preview_generator_enabled' => Util::previewGeneratorIsEnabled(),
 
                 'timeline_path' => $getAppConfig('timelinePath', 'EMPTY'),
                 'folders_path' => $getAppConfig('foldersPath', '/'),

lib/Util.php

@@ -137,6 +137,16 @@ class Util
         return version_compare($v, '0.9.10-beta.2', '>=');
     }
 
+    /**
+     * Check if preview generator is installed.
+     */
+    public static function previewGeneratorIsEnabled(): bool
+    {
+        $appManager = \OC::$server->get(IAppManager::class);
+
+        return $appManager->isEnabledForUser('previewgenerator');
+    }
+
     /**
      * Check if link sharing is allowed.
      */

src/components/admin/AdminMain.vue

@@ -1,5 +1,5 @@
 <template>
-  <div class="outer" v-if="loaded">
+  <div class="outer" v-if="config && sconfig">
     <XLoadingIcon class="loading-icon" v-show="loading" />
 
     <component
@@ -41,7 +41,6 @@ export default defineComponent({
   name: 'Admin',
 
   data: () => ({
-    loaded: false,
     loading: 0,
 
     status: null as ISystemStatus | null,
@@ -63,7 +62,6 @@ export default defineComponent({
         this.loading++;
         const res = await axios.get<ISystemConfig>(API.SYSTEM_CONFIG(null));
         this.config = res.data;
-        this.loaded = true;
       } catch (e) {
         showError(JSON.stringify(e));
       } finally {

src/components/admin/sections/Apps.vue

@@ -23,6 +23,14 @@
     <NcNoteCard v-if="sconfig.facerecognition_installed" type="success">
       {{ t('memories', 'Face Recognition is installed and enabled') }}
     </NcNoteCard>
+
+    <NcNoteCard :type="sconfig.preview_generator_enabled ? 'success' : 'error'">
+      {{
+        sconfig.preview_generator_enabled
+          ? t('memories', 'Preview generator is installed and enabled. Additional configuration may still be required.')
+          : t('memories', 'Preview generator is not installed and configured. This may make Memories very slow.')
+      }}
+    </NcNoteCard>
   </div>
 </template>
 

src/services/static-config.ts

@@ -107,6 +107,7 @@ class StaticConfig {
       albums_enabled: false,
       facerecognition_installed: false,
       facerecognition_enabled: false,
+      preview_generator_enabled: false,
 
       timeline_path: '',
       folders_path: '',

src/types.ts

@@ -241,6 +241,7 @@ export type IConfig = {
   albums_enabled: boolean;
   facerecognition_installed: boolean;
   facerecognition_enabled: boolean;
+  preview_generator_enabled: boolean;
 
   timeline_path: string;
   folders_path: string;