import { Injectable } from '@angular/core';
import { HttpClient } from '@angular/common/http';

import { Store } from '@ngrx/store';

import { User } from '../../accounts/models/user.model';
import { Observable } from 'rxjs';


@Injectable({ providedIn: 'root' })
export class UserService {

  private readonly userURL = '/users';

  constructor(
    private store: Store<{}>,
    private http: HttpClient
  ) {
  }

  loadUsers(options: LoadUserOptions): Observable<User[]> {
    return this.http.post<User[]>(this.userURL + '/search', options);
  }

  getUser(id: string): Observable<User> {
    return this.http.get<User>(`${this.userURL}/${id}`);
  }

  userNameExists(userName: string): Observable<boolean> {
    const reqData = { username: userName };
    return this.http.post<boolean>(`${this.userURL}/exists`, reqData);
  }

  saveUser(user: User): Observable<User> {
    return user._id !== '0' ? this.updateUser(user) : this.createUser(user);
  }

  private createUser(user: User): Observable<User> {
    return this.http.post<User>(this.userURL, user);
  }

  private updateUser(user: User): Observable<User> {
    return this.http.put<User>(`${this.userURL}/${user._id}`, user);
  }

  updateLang(lang): Observable<User> {
    return this.http.post<User>(`${this.userURL}/updateLang`, { lang: lang });
  }

  deleteUser(user: User) {
    return this.http.delete<User>(`${this.userURL}/${user._id}`);
  }

  getUserDetail(username: string) {
    return this.http.post<User>(`${this.userURL}/getUserDetail`, { username: username });
  }

}

export interface LoadUserOptions {
  byPuid: string;
  accountType?: number;
}