Make _delete() idempotent (#5159)

Author: hsubox76

packages/database/src/exp/Database.ts

@@ -256,10 +256,11 @@ export class FirebaseDatabase implements _FirebaseService {
   }
 
   _delete(): Promise<void> {
-    this._checkNotDeleted('delete');
-    repoManagerDeleteRepo(this._repo, this.app.name);
-    this._repoInternal = null;
-    this._rootInternal = null;
+    if (this._rootInternal !== null) {
+      repoManagerDeleteRepo(this._repo, this.app.name);
+      this._repoInternal = null;
+      this._rootInternal = null;
+    }
     return Promise.resolve();
   }
 

packages/storage/compat/service.ts

@@ -37,15 +37,6 @@ export class StorageServiceCompat
 {
   constructor(public app: FirebaseApp, readonly _delegate: StorageService) {}
 
-  INTERNAL = {
-    /**
-     * Called when the associated app is deleted.
-     */
-    delete: () => {
-      return this._delegate._delete();
-    }
-  };
-
   get maxOperationRetryTime(): number {
     return this._delegate.maxOperationRetryTime;
   }

packages/storage/src/service.ts

@@ -269,9 +269,11 @@ export class StorageService implements _FirebaseService {
    * Stop running requests and prevent more from being created.
    */
   _delete(): Promise<void> {
-    this._deleted = true;
-    this._requests.forEach(request => request.cancel());
-    this._requests.clear();
+    if (!this._deleted) {
+      this._deleted = true;
+      this._requests.forEach(request => request.cancel());
+      this._requests.clear();
+    }
     return Promise.resolve();
   }
 

packages/storage/test/unit/service.compat.test.ts

@@ -333,13 +333,13 @@ GOOG4-RSA-SHA256`
       const ref = service.refFromURL('gs://mybucket/image.jpg');
       const metadataPromise = ref.getMetadata();
       // eslint-disable-next-line @typescript-eslint/no-floating-promises
-      service.INTERNAL.delete();
+      service._delegate._delete();
       await expect(metadataPromise).to.be.rejectedWith('storage/app-deleted');
     });
     it('Requests fail when started after the service is deleted', async () => {
       const ref = service.refFromURL('gs://mybucket/image.jpg');
       // eslint-disable-next-line @typescript-eslint/no-floating-promises
-      service.INTERNAL.delete();
+      service._delegate._delete();
 
       await expect(ref.getMetadata()).to.be.rejectedWith('storage/app-deleted');
     });
@@ -360,7 +360,7 @@ GOOG4-RSA-SHA256`
           }
         );
         // eslint-disable-next-line @typescript-eslint/no-floating-promises
-        service.INTERNAL.delete();
+        service._delegate._delete();
       });
       return toReturn;
     });