Add database@exp API (#4614)

Author: schmidt-sebastian

packages/database/exp/index.ts

@@ -22,8 +22,48 @@ import { Component, ComponentType } from '@firebase/component';
 import { version } from '../package.json';
 import { FirebaseDatabase } from '../src/exp/Database';
 
-export { getDatabase, ServerValue } from '../src/exp/Database';
-export { enableLogging } from '../src/core/util/util';
+export {
+  enableLogging,
+  getDatabase,
+  goOffline,
+  goOnline,
+  ref,
+  refFromURL,
+  useDatabaseEmulator
+} from '../src/exp/Database';
+export {
+  OnDisconnect,
+  Reference,
+  ThenableReference
+} from '../src/exp/Reference';
+export { DataSnapshot } from '../src/exp/DataSnapshot';
+export {
+  ListenOptions,
+  Query,
+  QueryConstraint,
+  Unsubscribe,
+  endAt,
+  endBefore,
+  equalTo,
+  get,
+  limitToFirst,
+  limitToLast,
+  off,
+  onChildAdded,
+  onChildChanged,
+  onChildMoved,
+  onChildRemoved,
+  onValue,
+  orderByChild,
+  orderByKey,
+  orderByPriority,
+  orderByValue,
+  query,
+  startAfter,
+  startAt
+} from '../src/exp/Query';
+export { increment, serverTimestamp } from '../src/exp/ServerValue';
+export { runTransaction, TransactionOptions } from '../src/exp/Transaction';
 
 declare module '@firebase/component' {
   interface NameServiceMapping {

packages/database/src/exp/DataSnapshot.ts

@@ -0,0 +1,68 @@
+/**
+ * @license
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import { Reference } from './Reference';
+
+export class DataSnapshot {
+  private constructor() {}
+  priority: string | number | null;
+  size: number;
+  key: string | null;
+  ref: Reference;
+
+  child(path: string): DataSnapshot {
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    return {} as any;
+  }
+
+  exists(): boolean {
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    return {} as any;
+  }
+
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  exportVal(): any {
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    return {} as any;
+  }
+
+  forEach(action: (child: DataSnapshot) => boolean | void): boolean {
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    return {} as any;
+  }
+
+  hasChild(path: string): boolean {
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    return {} as any;
+  }
+
+  hasChildren(): boolean {
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    return {} as any;
+  }
+
+  toJSON(): object | null {
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    return {} as any;
+  }
+
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  val(): any {
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    return {} as any;
+  }
+}

packages/database/src/exp/Database.ts

@@ -18,91 +18,27 @@
 // eslint-disable-next-line import/no-extraneous-dependencies
 import { _FirebaseService, _getProvider, FirebaseApp } from '@firebase/app-exp';
 import { Reference } from '../api/Reference';
-import { repoManagerDatabaseFromApp } from '../core/RepoManager';
 import { FirebaseAuthInternalName } from '@firebase/auth-interop-types';
-import { Database } from '../api/Database';
 import { Provider } from '@firebase/component';
 
 /**
  * Class representing a Firebase Realtime Database.
  */
 export class FirebaseDatabase implements _FirebaseService {
-  static readonly ServerValue = Database.ServerValue;
-
-  private _delegate: Database;
+  readonly 'type' = 'database';
 
   constructor(
     readonly app: FirebaseApp,
     authProvider: Provider<FirebaseAuthInternalName>,
     databaseUrl?: string
-  ) {
-    this._delegate = repoManagerDatabaseFromApp(
-      this.app,
-      authProvider,
-      databaseUrl,
-      undefined
-    );
-  }
-
-  /**
-   * Modify this instance to communicate with the Realtime Database emulator.
-   *
-   * <p>Note: This method must be called before performing any other operation.
-   *
-   * @param host - the emulator host (ex: localhost)
-   * @param port - the emulator port (ex: 8080)
-   */
-  useEmulator(host: string, port: number): void {
-    this._delegate.useEmulator(host, port);
-  }
-
-  /**
-   * Returns a reference to the root or to the path specified in the provided
-   * argument.
-   *
-   * @param path - The relative string path or an existing Reference to a
-   * database location.
-   * @throws If a Reference is provided, throws if it does not belong to the
-   * same project.
-   * @returns Firebase reference.
-   */
-  ref(path?: string): Reference;
-  ref(path?: Reference): Reference;
-  ref(path?: string | Reference): Reference {
-    return typeof path === 'string'
-      ? this._delegate.ref(path)
-      : this._delegate.ref(path);
-  }
-
-  /**
-   * Returns a reference to the root or the path specified in url.
-   * We throw a exception if the url is not in the same domain as the
-   * current repo.
-   * @param url - A URL that refers to a database location.
-   * @returns A Firebase reference.
-   */
-  refFromURL(url: string): Reference {
-    return this._delegate.refFromURL(url);
-  }
-
-  goOffline(): void {
-    this._delegate.goOffline();
-  }
-
-  goOnline(): void {
-    this._delegate.goOnline();
-  }
+  ) {}
 
   _delete(): Promise<void> {
-    return this._delegate.INTERNAL.delete();
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    return {} as any;
   }
-
-  _setDatabaseUrl(url: string) {}
 }
 
-const ServerValue = Database.ServerValue;
-export { ServerValue };
-
 /**
  * Returns the instance of the Realtime Database SDK that is associated
  * with the provided {@link FirebaseApp}. Initializes a new instance with
@@ -120,3 +56,43 @@ export function getDatabase(app: FirebaseApp, url?: string): FirebaseDatabase {
     identifier: url
   }) as FirebaseDatabase;
 }
+
+export function useDatabaseEmulator(
+  db: FirebaseDatabase,
+  host: string,
+  port: number
+): void {
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  return {} as any;
+}
+
+export function goOffline(db: FirebaseDatabase): void {
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  return {} as any;
+}
+
+export function goOnline(db: FirebaseDatabase): void {
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  return {} as any;
+}
+
+export function ref(
+  db: FirebaseDatabase,
+  path?: string | Reference
+): Reference {
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  return {} as any;
+}
+
+export function refFromURL(db: FirebaseDatabase, url: string): Reference {
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  return {} as any;
+}
+
+export function enableLogging(
+  logger?: boolean | ((message: string) => unknown),
+  persistent?: boolean
+): void {
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  return {} as any;
+}