fix: add pre-configured firebase app module

Author: patrickmichalina

src/modules/firebase/firebase.app.module.ts

@@ -0,0 +1,49 @@
+import { NgModule } from '@angular/core'
+import {
+  FirebaseNameOrConfigToken,
+  FirebaseOptionsToken,
+  AngularFireModule
+} from 'angularfire2'
+import { EnvironmentService } from '../environment'
+import { FIREBASE_USER_AUTH_TOKEN } from './common/server'
+
+export interface IFirebaseEnvConfig {
+  readonly [key: string]: string | undefined
+  readonly FIREBASE_API_KEY: string
+  readonly FIREBASE_AUTH_DOMAIN: string
+  readonly FIREBASE_DATABASE_URL: string
+  readonly FIREBASE_PROJECT_ID: string
+  readonly FIREBASE_STORAGE_BUCKET: string
+  readonly FIREBASE_MESSAGING_SENDER_ID: string
+}
+
+export function firebaseEnvironmentFactory(
+  es: EnvironmentService<IFirebaseEnvConfig>
+) {
+  return {
+    apiKey: es.config.FIREBASE_API_KEY,
+    authDomain: es.config.FIREBASE_AUTH_DOMAIN,
+    databaseURL: es.config.FIREBASE_DATABASE_URL,
+    projectId: es.config.FIREBASE_PROJECT_ID,
+    storageBucket: es.config.FIREBASE_STORAGE_BUCKET,
+    messagingSenderId: es.config.FIREBASE_MESSAGING_SENDER_ID
+  }
+}
+
+// tslint:disable-next-line:no-class
+@NgModule({
+  imports: [AngularFireModule],
+  providers: [
+    { provide: FIREBASE_USER_AUTH_TOKEN, useValue: undefined },
+    {
+      provide: FirebaseNameOrConfigToken,
+      useValue: 'universal-webapp'
+    },
+    {
+      provide: FirebaseOptionsToken,
+      useFactory: firebaseEnvironmentFactory,
+      deps: [EnvironmentService]
+    }
+  ]
+})
+export class FirebaseUniversalAppModule {}

src/modules/firebase/index.ts

@@ -1,3 +1,4 @@
+export { FirebaseUniversalAppModule } from './firebase.app.module'
 export { FirebaseFsBrowserModule } from './firestore/browser.firebase.fs.module'
 export {
   UniversalFirestoreService