private async void TakePicture_Click(object sender, RoutedEventArgs e)
{
if (currentPerson == null)
{
Debug.WriteLine("Creating person in group.");
var userData = new UserData(App.Settings.Values["userID"].ToString(), App.Settings.Values["Token"].ToString());
var id = await FaceApiService.CreatePersonInGroupAsync(personGroupId, viewModel.UserName, userData);
Debug.WriteLine("Person created with ID: " + id);
currentPerson = new OxfordPerson()
{
personId = id,
name = viewModel.UserName,
userData = JsonConvert.SerializeObject(userData).EncodeBase64()
};
}
var stream = await capturePhotoStreamAsync();
if (stream != null)
{
var image = new BitmapImage();
await image.SetSourceAsync(stream);
photo.Source = image;
var faceId = await FaceApiService.AddPersonFaceAsync(personGroupId, currentPerson.personId, stream);
Debug.WriteLine($"Face added to person {currentPerson.personId} with ID: {faceId}");
stream.Dispose();
}
else
{
viewModel.OxfordStatus = "Unable to capture the photo.";
}
}
private async Task <bool> checkUserRegistrationAsync()
{
var userId = App.Settings.Values["userID"].ToString();
var people = await FaceApiService.GetPeopleInGroupAsync(personGroupId);
if (people.Count == 0)
{
return(false); // no users yet
}
var res = (from p in people
where JsonConvert.DeserializeObject <UserData>(p.userData.DecodeBase64()).UserId == userId
select p).FirstOrDefault();
if (res == null)
{
return(false); // user not registered
}
else
{
currentPerson = res;
return(true);
}
}
public static Task <bool> UpdatePersonAsync(string groupId, OxfordPerson person)
{
return(UpdatePersonAsync(groupId, person.personId, person.name, person.userData));
}