import 'package:aman_kassa_flutter/core/base/base_view_model.dart';
import 'package:aman_kassa_flutter/core/route_names.dart';
import 'package:aman_kassa_flutter/core/services/authentication_service.dart';
import 'package:aman_kassa_flutter/core/services/navigator_service.dart';
import 'package:flutter/material.dart';
import 'package:aman_kassa_flutter/core/models/authResponse.dart';

class LoginViewModel extends BaseViewModel {

  //service
  NavigatorService _navigationService;
  AuthenticationService _authenticationService;

  //private var
  String _messageEmail;
  String _messagePassword;

  //public getter setter
  get messageEmail => this._messageEmail;
  set messageEmail(String message) { 
    this._messageEmail = message; 
    notifyListeners(); 
  }
  get messagePassword => this._messagePassword;
  set messagePassword(String message) { 
    this._messagePassword = message; 
    notifyListeners(); 
  }


  LoginViewModel({
    @required AuthenticationService authenticationService,
    @required NavigatorService navigationService,
  }) : 
  _authenticationService = authenticationService , 
  _navigationService = navigationService;


  Future<String> login({String email, String password}) async {
    String result;
    busy = true;
    try {
      AuthBody response = await _authenticationService.loginWithEmail(email: email, password: password);
      
      if(response!=null) {
        if(response.user != null){
          _navigationService.replace(HomeViewRoute);
        } else {   
          // show error on validate
          if(response.email?.isEmpty == false){
            messageEmail = response.email.join(",");
          } else {
            messageEmail = null;
          }
          if(response.password?.isEmpty == false){
            messagePassword = response.password.join(",");
          } else {
            messagePassword = null;
          }
          //return meesage on snackbar for user screen
          if(response.message!=null) {
            result = response.message;
          }
        }
      } 
     
    } finally {
      busy = false ;
    }
    return result;
  }
  
  // Add ViewModel specific code here
}