private async void Login()
{
//null or empty field validation, check weather email and password is null or empty
if (string.IsNullOrEmpty(Email) || string.IsNullOrEmpty(Password))
{
await App.Current.MainPage.DisplayAlert("Empty Values", "Please enter Email and Password", "OK");
}
else
{
//call GetUser function which we define in Firebase helper class
var user = await FirebaseHelper.GetUser(Email);
//firebase return null valuse if user data not found in database
if (user != null)
{
if (Email == user.Email && Password == user.Password)
{
//await App.Current.MainPage.DisplayAlert("Login Success", "", "Ok");
//Navigate to Wellcom page after successfuly login
//pass user email to welcom page
try
{
var user1 = await App.Database.GetItemUser(Email);
if (user1 == null)
{
App.Database.SaveItemUser(user);
}
// await App.Current.MainPage.Navigation.PushAsync(new ChangesCategoryPage(Email, Password));
var main = await TasksAndMenu.Create(user.Email);
await App.Current.MainPage.Navigation.PushModalAsync(main);
}
catch (Exception e)
{
await App.Current.MainPage.DisplayAlert("Login Fail", e.StackTrace.ToString(), "OK");
}
}
else
{
await App.Current.MainPage.DisplayAlert("Login Fail", "Please enter correct Email and Password", "OK");
}
}
else
{
await App.Current.MainPage.DisplayAlert("Login Fail", "User not found", "OK");
}
}
}
private async void SignUp()
{
//call GetUser function which we define in Firebase helper class
var user1 = await FirebaseHelper.GetUser(Email);
//firebase return null valuse if user data not found in database
if (user1 != null)
{
await App.Current.MainPage.DisplayAlert("Login Fail", "Such user already exists", "OK");
}
else
{
//null or empty field validation, check weather email and password is null or empty
if (string.IsNullOrEmpty(Email) || string.IsNullOrEmpty(Password))
{
await App.Current.MainPage.DisplayAlert("Empty Values", "Please enter Email and Password", "OK");
}
else
{
//call AddUser function which we define in Firebase helper class
var user = await FirebaseHelper.AddUser(Email, Password);
//AddUser return true if data insert successfuly
if (user)
{
await App.Current.MainPage.DisplayAlert("SignUp Success", "", "Ok");
//Navigate to Wellcom page after successfuly SignUp
//pass user email to welcom page
var main = await TasksAndMenu.Create(Email);
await App.Current.MainPage.Navigation.PushModalAsync(main);
}
else
{
await App.Current.MainPage.DisplayAlert("Error", "SignUp Fail", "OK");
}
}
}
}