cothema / ionic-universal-firebase-login

import { Injectable } from "@angular/core";

import { AngularFireAuth } from "@angular/fire/auth";

import { User as FirebaseUser } from "firebase";

import { BehaviorSubject, Observable } from "rxjs";

import { UniFirebaseLoginConfigProvider } from "../config/uni-firebase-login-config-provider";

import { UserModel } from "../model/user-model";

import { AbstractStorage } from "./abstract-storage";

import { IStorageProvider } from "./i-storage-provider";

@Injectable({

  providedIn: "root",

})

export class NoMemoryStorage<User extends UserModel = UserModel>

  extends AbstractStorage<User>

  implements IStorageProvider<User> {

  protected user: BehaviorSubject<User | null> = new BehaviorSubject<User | null>(

    null,

  );

  public constructor(

    angularFireAuth: AngularFireAuth,

    configProvider: UniFirebaseLoginConfigProvider,

  ) {

    super(angularFireAuth, configProvider);

  }

  public async updateStoredDataByUser(user: User): Promise<void> {

    this.user.next(user);

  }

  public async updateStoredDataByFirebaseUser(

    firebaseUser: FirebaseUser,

  ): Promise<void> {

    this.user.next(

      this.config.mapFirebaseUserToStorageFunc(firebaseUser) as User,

    );

  }

  public subscribeUserDataFromStorageByFirebaseUser(

    user: FirebaseUser,

  ): Observable<User | null> {

    this.user.next(this.config.mapFirebaseUserToStorageFunc(user) as User);

    return this.user;

  }

}