import {Inject, Injectable} from '@angular/core';
import {BehaviorSubject, Observable} from 'rxjs';
import {User} from '../model/user';
import {map, shareReplay, tap} from 'rxjs/operators';
import {HttpClient} from '@angular/common/http';
const AUTH_DATA = "auth_data";
@Injectable({
providedIn: 'root'
})
export class AuthStore {
private subject = new BehaviorSubject<User>(null);
user$ : Observable<User> = this.subject.asObservable();
isLoggedIn$ : Observable<boolean>;
isLoggedOut$ : Observable<boolean>;
constructor(private http: HttpClient) {
this.isLoggedIn$ = this.user$.pipe(map(user => !!user));
this.isLoggedOut$ = this.isLoggedIn$.pipe(map(loggedIn => !loggedIn));
const user = localStorage.getItem(AUTH_DATA);
if (user) {
this.subject.next(JSON.parse(user));
}
}
login(email:string, password:string): Observable<User> {
return this.http.post<User>("/api/login", {email, password})
.pipe(
tap(user => {
this.subject.next(user);
localStorage.setItem(AUTH_DATA, JSON.stringify(user));
}),
shareReplay()
);
}
logout() {
this.subject.next(null);
localStorage.removeItem(AUTH_DATA);
}
}
