//Loads the authentication information on startup if exists
public static async Task LoadLocalAuthenticaionInformation()
{
try
{
StorageFile file = await ApplicationData.Current.LocalFolder.GetFileAsync(fileName);
using (IInputStream inStream = await file.OpenSequentialReadAsync())
{
DataContractSerializer serializer = new DataContractSerializer(typeof(DonorProfile));
var data = (DonorProfile)serializer.ReadObject(inStream.AsStreamForRead());
if (data != null)
user = data;
}
}
catch { }
}
//Saves locally the authentication information after successful sign in
public static async Task SetLocalAuthenticationInformation
(DonorProfile User)
{
user = User;
try
{
MemoryStream sessionData = new MemoryStream();
DataContractSerializer serializer = new DataContractSerializer(typeof(DonorProfile));
serializer.WriteObject(sessionData, user);
StorageFile file = await ApplicationData.Current.LocalFolder.CreateFileAsync(fileName);
using (Stream fileStream = await file.OpenStreamForWriteAsync())
{
sessionData.Seek(0, SeekOrigin.Begin);
await sessionData.CopyToAsync(fileStream);
await fileStream.FlushAsync();
}
}
catch { }
}
//Signout locally from this phone
public static void Signout()
{
user = null;
DeleteLocalAuthenticationInformation();
FollowedCharities.ClearCart();
}