[internals] Move native events to individual modules to make it easier to see the relationship

lib/utils/ModuleBase.js

@@ -29,7 +29,7 @@ export default class ModuleBase {
    * @param options
    * @param withEventEmitter
    */
-  constructor(firebaseApp: FirebaseApp, options: Object, withEventEmitter: boolean = false) {
+  constructor(firebaseApp: FirebaseApp, options: Object, events: string[] = []) {
     this._module = this.constructor._NATIVE_MODULE.replace('RNFirebase', '');
     this._firebaseApp = firebaseApp;
     this._appName = firebaseApp._name;
@@ -41,9 +41,7 @@ export default class ModuleBase {
     // TODO: Get rid of
     this._native = getNativeModule(this);
 
-    if (withEventEmitter) {
-      initialiseNativeModuleEventEmitter(this);
-    }
+    initialiseNativeModuleEventEmitter(this, events);
   }
 
   /**

lib/utils/events.js

@@ -7,24 +7,6 @@ import { getRawNativeModule } from './native';
 
 import type ModuleBase from './ModuleBase';
 
-const NATIVE_MODULE_EVENTS = {
-  Storage: [
-    'storage_event',
-    'storage_error',
-  ],
-  Auth: [
-    'auth_state_changed',
-    'phone_auth_state_changed',
-  ],
-  Database: [
-    'database_transaction_event',
-    // 'database_server_offset', // TODO
-  ],
-  Firestore: [
-    'firestore_collection_sync_event',
-    'firestore_document_sync_event',
-  ],
-};
 const NATIVE_EMITTERS: { [string]: NativeEventEmitter } = {};
 const NATIVE_SUBSCRIPTIONS: { [string]: boolean } = {};
 
@@ -70,9 +52,7 @@ const subscribeToNativeModuleEvents = (module: ModuleBase, eventName: string): v
   }
 };
 
-export const initialiseNativeModuleEventEmitter = (module: ModuleBase): void => {
-  const events = NATIVE_MODULE_EVENTS[module._module];
-
+export const initialiseNativeModuleEventEmitter = (module: ModuleBase, events: string[]): void => {
   if (events && events.length) {
     for (let i = 0, len = events.length; i < len; i++) {
       subscribeToNativeModuleEvents(module, events[i]);