async void OnAuthCompleted(object sender, AuthenticatorCompletedEventArgs e)
{
var authenticator = sender as OAuth2Authenticator;
if (authenticator != null)
{
authenticator.Completed -= OnAuthCompleted;
authenticator.Error -= OnAuthError;
}
if (e.IsAuthenticated)
{
if (authenticator.AuthorizeUrl.Host == "www.facebook.com")
{
FacebookEmail facebookEmail = null;
var httpClient = new HttpClient();
var json = await httpClient.GetStringAsync($"https://graph.facebook.com/me?fields=id,name,first_name,last_name,email,picture.type(large)&access_token=" + e.Account.Properties["access_token"]);
facebookEmail = JsonConvert.DeserializeObject <FacebookEmail>(json);
await store.SaveAsync(account = e.Account, Constants.AppName);
Application.Current.Properties["IsLoggedIn"] = Boolean.TrueString;
bool newuser = false;
if (await FirebaseHelper.CheckFacebookEmail(facebookEmail.Email) == false)
{
await FirebaseHelper.AddFacebookUser(facebookEmail.Id, facebookEmail.Name, facebookEmail.First_Name, facebookEmail.Last_Name, facebookEmail.Email, facebookEmail.Picture);
newuser = true;
}
Application.Current.Properties.Remove("Id");
Application.Current.Properties.Remove("FirstName");
Application.Current.Properties.Remove("LastName");
Application.Current.Properties.Remove("DisplayName");
Application.Current.Properties.Remove("EmailAddress");
Application.Current.Properties.Remove("ProfilePicture");
Application.Current.Properties.Add("Id", facebookEmail.Id);
Application.Current.Properties.Add("FirstName", facebookEmail.First_Name);
Application.Current.Properties.Add("LastName", facebookEmail.Last_Name);
Application.Current.Properties.Add("DisplayName", facebookEmail.Name);
Application.Current.Properties.Add("EmailAddress", facebookEmail.Email);
Application.Current.Properties.Add("ProfilePicture", facebookEmail.Picture.Data.Url);
if (newuser)
{
await FirebaseHelper.AddPantryItem("Example Item", "5", "12/15");
}
App.Current.MainPage = new AppShell();
}
}
}
private async void AddPantry()
{
if (string.IsNullOrEmpty(ItemName) || string.IsNullOrEmpty(Quantity) || string.IsNullOrEmpty(ExpirationDate))
{
await App.Current.MainPage.DisplayAlert("Empty Values", "Please enter Item Name, Calories, and Quantity.", "OK");
}
else
{
var user = await FirebaseHelper.AddPantryItem(ItemName, Quantity, ExpirationDate);
if (user)
{
await App.Current.MainPage.DisplayAlert("Item Added!", "", "OK");
await RefreshPantry();
}
else
{
await App.Current.MainPage.DisplayAlert("Couldn't Add Item", "Please Try Again", "OK");
}
}
}
async void OnAuthCompleted(object sender, AuthenticatorCompletedEventArgs e)
{
var authenticator = sender as OAuth2Authenticator;
if (authenticator != null)
{
authenticator.Completed -= OnAuthCompleted;
authenticator.Error -= OnAuthError;
}
GoogleUsers user = null;
if (e.IsAuthenticated)
{
// If the user is authenticated, request their basic user data from Google
// UserInfoUrl = https://www.googleapis.com/oauth2/v2/userinfo
var request = new OAuth2Request("GET", new Uri(Constants.UserInfoUrl), null, e.Account);
var response = await request.GetResponseAsync();
if (response != null)
{
// Deserialize the data and store it in the account store
// The users email address will be used to identify data in SimpleDB
string userJson = await response.GetResponseTextAsync();
user = JsonConvert.DeserializeObject <GoogleUsers>(userJson);
user.IsToggled = false;
user.IsLoggedIn = true;
}
if (account != null)
{
store.Delete(account, Constants.AppName);
}
await store.SaveAsync(account = e.Account, Constants.AppName);
bool newuser = false;
if (await FirebaseHelper.CheckEmail(user.Email) == false)
{
await FirebaseHelper.AddUser(user.Email, user.Picture, user.Name, user.Id, user.IsToggled, user.IsLoggedIn);
newuser = true;
}
ClearPersisitance();
Application.Current.Properties.Add("Id", user.Id);
Application.Current.Properties.Add("FirstName", user.GivenName);
Application.Current.Properties.Add("LastName", user.FamilyName);
Application.Current.Properties.Add("DisplayName", user.Name);
Application.Current.Properties.Add("EmailAddress", user.Email);
Application.Current.Properties.Add("ProfilePicture", user.Picture);
Application.Current.Properties.Add("IsToggled", false);
await Application.Current.SavePropertiesAsync(); //persistance
if (newuser)
{
await FirebaseHelper.AddPantryItem("Example Item", "5", "12/15");
}
App.Current.MainPage = new AppShell();
}
}