import {Injectable} from '@angular/core';
import {AppUser} from '../../models/model-interfaces';
import {Observable} from 'rxjs/Observable';
import {EDIT, LOAD, REMOVE, Store} from '../stores/generic-store';
import {AppConfig} from '../../app.config';
import {HttpGateway} from '../http-gateway';

@Injectable()
export class AppUserService {

  users$: Observable<AppUser[]>;

  private appUserStore = new Store<AppUser>();

  constructor(private httpGateway: HttpGateway,
              private config: AppConfig) {
    this.users$ = this.appUserStore.items$;
  }

  getUsers(): Observable<AppUser[]> {
    this.httpGateway.get<AppUser[]>(this.config.apiAppUserPath)
        .do((users) => {
          this.appUserStore.dispatch({type: LOAD, data: users});
        }).subscribe(_ => {
    });

    return this.users$;
  }

  getAppUser(id: string): Observable<AppUser> {
    return this.httpGateway.get<AppUser>(this.config.apiAppUserPath + id);
  }

  updateUser(user: AppUser): Observable<AppUser> {
    return this.httpGateway.patch<AppUser>(this.config.apiAppUserPath + user._id, user)
               .do(savedUser => {
                 const action = {type: EDIT, data: savedUser};
                 this.appUserStore.dispatch(action);
               });
  }

  deleteUser(user) {
    return this.httpGateway.delete(this.config.apiAppUserPath + user._id)
               .do(res => {
                 this.appUserStore.dispatch({type: REMOVE, data: user});
               });
  }
}