internal async Task RequestNotesListAsync(Action <List <DBNote>, Error> completionHandler)
{
List <DBNote> responseNotes = new List <DBNote>();
Error error = null;
if (_currentUserProvider() == null)
{
await _loginSequence();
}
string userID = _currentUserProvider().UUID;
try
{
var notesList = await _firebaseClient
.Child("notes")
.Child(userID)
.OnceAsync <NoteData>();
foreach (var item in notesList)
{
responseNotes.Add(DBNote.FromNoteData(item.Key, item.Object));
}
}
catch (Exception e)
{
error = ErrorFromFibaseException(e);
}
completionHandler(responseNotes, error);
}
internal async Task AddNoteAsync(DateTime time,
string name,
System.IO.Stream imageStream,
string text,
Action <DBNote, Error> completionHandler)
{
DBNote newNote = null;
Error error = null;
// get user ID
if (_currentUserProvider() == null)
{
await _loginSequence();
}
string userID = _currentUserProvider().UUID;
// upload image to firebase storage
string uploadedImageURL = null;
if (error == null && imageStream != null)
{
try
{
string imageUUID = Guid.NewGuid().ToString() + ".jpg";
var uploadTask = _firebaseStorage
.Child("user")
.Child(userID)
.Child(imageUUID)
.PutAsync(imageStream);
uploadedImageURL = await uploadTask;
}
catch (Exception e)
{
error = ErrorFromFibaseException(e);
}
}
// create note entity in database
if (error == null)
{
try
{
NoteData noteData = new NoteData();
noteData.creationDate = time;
noteData.name = name;
noteData.imageURLstring = uploadedImageURL;
noteData.text = text;
var postedNoteData = await _firebaseClient
.Child("notes")
.Child(userID)
.PostAsync(noteData, false);
newNote = DBNote.FromNoteData(postedNoteData.Key, postedNoteData.Object);
}
catch (Exception e)
{
error = ErrorFromFibaseException(e);
}
}
// done
completionHandler(newNote, error);
}