add _latest for latest version reference

console-api/src/update/update.service.ts

@@ -11,6 +11,7 @@ import _ from 'lodash';
 import { ArchiveFile } from '../entities/ArchiveFile.entity';
 import * as os from 'os';
 import moment from 'moment';
+import { AppsJson } from '../utility/apps-json-type';
 
 @Injectable()
 export class UpdateService extends ConsoleLogger {
@@ -25,9 +26,49 @@ export class UpdateService extends ConsoleLogger {
   }
 
   async getAppsJson() {
-    return (await this.db.getRepository(App).find({ where: { appData: Not(IsNull()), isDeleted: false }, select: ['appData'] })).map(
+    const data = (await this.db.getRepository(App).find({ where: { appData: Not(IsNull()), isDeleted: false }, select: ['appData'] })).map(
       (a) => a.displayData
     );
+    const appVersionCacheMap = new Map<string, string>();
+    for (const _platform of Object.values(AppsJson.Platform)) {
+      const platform = _platform as AppsJson.Platform;
+      if (platform === 'generic') {
+        continue;
+      }
+      const depotDto = new DepotDto();
+      depotDto.locale = 'generic';
+      depotDto.arch = 'generic';
+      depotDto.platform = platform;
+      // this.log(platform);
+      for (const app of data) {
+        if (app.version && app.version[platform] === '_latest') {
+          // this.log(`Try fetching latest version of ${app.id} ${platform}`);
+          const tryCache = appVersionCacheMap.get(app.id);
+          if (tryCache) {
+            app.version[platform] = tryCache;
+          }
+
+          const latestBuild = await this.db
+            .getRepository(Build)
+            .createQueryBuilder('build')
+            .select(['build.version', 'build.id', 'depot.platform'])
+            .innerJoin('build.depot', 'depot')
+            .where('depot.appId = :appId', { appId: app.id })
+            .andWhere(depotDto.getQueryBrackets())
+            .orderBy('build.id', 'DESC')
+            .take(1)
+            .getOne();
+          if (latestBuild) {
+            const latestVersion = latestBuild.version;
+            if (latestBuild.depot.platform === 'generic') {
+              appVersionCacheMap.set(app.id, latestVersion);
+            }
+            app.version[platform] = latestVersion;
+          }
+        }
+      }
+    }
+    return data;
   }
 
   private async getBuild(