import { Injectable } from '@angular/core'
import { Http } from '@angular/http'
import 'rxjs/add/operator/catch'
import 'rxjs/add/operator/map'

import { AuthService } from '../../core'
import { AuthHttp } from '../auth'
import { RestExtractor } from '../rest'
import { UserCreate, UserUpdate } from '../../../../../shared'

@Injectable()
export class UserService {
  static BASE_USERS_URL = API_URL + '/api/v1/users/'

  constructor (
    private http: Http,
    private authHttp: AuthHttp,
    private authService: AuthService,
    private restExtractor: RestExtractor
  ) {}

  checkTokenValidity () {
    const url = UserService.BASE_USERS_URL + 'me'

    // AuthHttp will redirect us to the login page if the oken is not valid anymore
    this.authHttp.get(url).subscribe()
  }

  changePassword (newPassword: string) {
    const url = UserService.BASE_USERS_URL + this.authService.getUser().id
    const body: UserUpdate = {
      password: newPassword
    }

    return this.authHttp.put(url, body)
                        .map(this.restExtractor.extractDataBool)
                        .catch((res) => this.restExtractor.handleError(res))
  }

  updateDetails (details: UserUpdate) {
    const url = UserService.BASE_USERS_URL + this.authService.getUser().id

    return this.authHttp.put(url, details)
                        .map(this.restExtractor.extractDataBool)
                        .catch((res) => this.restExtractor.handleError(res))
  }

  signup (userCreate: UserCreate) {
    return this.http.post(UserService.BASE_USERS_URL + 'register', userCreate)
                        .map(this.restExtractor.extractDataBool)
                        .catch(this.restExtractor.handleError)
  }
}