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
await App.Current.MainPage.Navigation.PushAsync(new WelcomPage(Email));
}
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");
}
}
}
//Update user data
private async void Update()
{
try
{
if (!string.IsNullOrEmpty(Password))
{
var isupdate = await FirebaseHelper.UpdateUser(Email, Password);
if (isupdate)
{
await App.Current.MainPage.DisplayAlert("Update Success", "", "Ok");
}
else
{
await App.Current.MainPage.DisplayAlert("Error", "Record not update", "Ok");
}
}
else
{
await App.Current.MainPage.DisplayAlert("Password Require", "Please Enter your password", "Ok");
}
}
catch (Exception e)
{
Debug.WriteLine($"Error:{e}");
}
}
private async void SignUp()
{
//null or empty field validation, check weather email and password is null or empty
if (string.IsNullOrEmpty(Email) || string.IsNullOrEmpty(Password))
{
await App.Current.MainPage.DisplayAlert("Empty Values", "Please enter Email and Password", "OK");
}
else
{
//call AddUser function which we define in Firebase helper class
var user = await FirebaseHelper.AddUser(Email, Password);
//AddUser return true if data insert successfuly
if (user)
{
await App.Current.MainPage.DisplayAlert("SignUp Success", "", "Ok");
//Navigate to Wellcom page after successfuly SignUp
//pass user email to welcom page
await App.Current.MainPage.Navigation.PushAsync(new WelcomPage(Email));
}
else
{
await App.Current.MainPage.DisplayAlert("Error", "SignUp Fail", "OK");
}
}
}
//Delete user data
private async void Delete()
{
try
{
var isdelete = await FirebaseHelper.DeleteUser(Email);
if (isdelete)
{
await App.Current.MainPage.Navigation.PopAsync();
}
else
{
await App.Current.MainPage.DisplayAlert("Error", "Record not delete", "Ok");
}
}
catch (Exception e)
{
Debug.WriteLine($"Error:{e}");
}
}