Move to libs

libs/common/src/services/appId.service.ts

@@ -0,0 +1,31 @@
+import { AppIdService as AppIdServiceAbstraction } from "../abstractions/appId.service";
+import { StorageService } from "../abstractions/storage.service";
+import { HtmlStorageLocation } from "../enums/htmlStorageLocation";
+import { Utils } from "../misc/utils";
+
+export class AppIdService implements AppIdServiceAbstraction {
+  constructor(private storageService: StorageService) {}
+
+  getAppId(): Promise<string> {
+    return this.makeAndGetAppId("appId");
+  }
+
+  getAnonymousAppId(): Promise<string> {
+    return this.makeAndGetAppId("anonymousAppId");
+  }
+
+  private async makeAndGetAppId(key: string) {
+    const existingId = await this.storageService.get<string>(key, {
+      htmlStorageLocation: HtmlStorageLocation.Local,
+    });
+    if (existingId != null) {
+      return existingId;
+    }
+
+    const guid = Utils.newGuid();
+    await this.storageService.save(key, guid, {
+      htmlStorageLocation: HtmlStorageLocation.Local,
+    });
+    return guid;
+  }
+}