private int AddSong(int songId)
{
// Keep queue trimmed
if (LookupMap.Count >= MAX_QUEUE_SIZE)
{
PlayQueueEntryModel head = null;
if (PlaybackQueue.Count > 0)
{
head = PlaybackQueue.First();
}
if (head != null)
{
if (CurrentPlaybackQueueEntryId == head.RowId)
{
// TODO: #6 raise alert about queue being full
return(-1);
}
else
{
RemoveEntry(head.RowId);
}
}
}
PlayQueueEntryModel currentTail = null;
if (PlaybackQueue.Count > 0)
{
currentTail = PlaybackQueue.Last();
}
PlayQueueEntryTable newPlayQueueEntry;
if (currentTail == null)
{
newPlayQueueEntry = new PlayQueueEntryTable(songId, 0, 0);
DatabaseManager.Current.AddPlayQueueEntry(newPlayQueueEntry);
}
else
{
newPlayQueueEntry = new PlayQueueEntryTable(songId, 0, currentTail.RowId);
DatabaseManager.Current.AddPlayQueueEntry(newPlayQueueEntry);
currentTail.NextId = newPlayQueueEntry.RowId;
}
PlayQueueEntryModel newEntry = new PlayQueueEntryModel(newPlayQueueEntry);
LookupMap.Add(newEntry.RowId, newEntry);
PlaybackQueue.Add(newEntry);
NotifyPropertyChanged(Properties.NextTrack);
NotifyPropertyChanged(Properties.PrevTrack);
return(newEntry.RowId);
}
public void ResetPlayerToStart()
{
if (PlaybackQueue.Count > 0)
{
PlayQueueEntryModel playQueueEntry = PlaybackQueue.First();
CurrentPlaybackQueueEntryId = playQueueEntry.RowId;
}
}
public void MoveSong(int oldIndex, int newIndex)
{
if (oldIndex == newIndex)
{
return;
}
PlayQueueEntryModel songToMove = PlaybackQueue[oldIndex];
PlayQueueEntryModel target = null;
if (newIndex > 0)
{
if (newIndex < oldIndex)
{
target = PlaybackQueue[newIndex - 1];
}
else
{
target = PlaybackQueue[newIndex];
}
}
// Remove from old spot
PlayQueueEntryModel previousModel = null;
if (LookupMap.TryGetValue(songToMove.PrevId, out previousModel))
{
previousModel.NextId = songToMove.NextId;
}
PlayQueueEntryModel nextModel = null;
if (LookupMap.TryGetValue(songToMove.NextId, out nextModel))
{
nextModel.PrevId = songToMove.PrevId;
}
// Insert after new spot
if (target == null)
{
PlayQueueEntryModel head = null;
if (PlaybackQueue.Count > 0)
{
head = PlaybackQueue.First();
}
if (head != null)
{
songToMove.NextId = head.RowId;
head.PrevId = songToMove.RowId;
songToMove.PrevId = 0;
}
else
{
// Should be redundant
songToMove.NextId = 0;
songToMove.PrevId = 0;
}
}
else
{
PlayQueueEntryModel newNextModel = null;
if (LookupMap.TryGetValue(target.NextId, out newNextModel))
{
newNextModel.PrevId = songToMove.RowId;
}
songToMove.NextId = target.NextId;
target.NextId = songToMove.RowId;
songToMove.PrevId = target.RowId;
}
PlaybackQueue.Move(oldIndex, newIndex);
NotifyPropertyChanged(Properties.NextTrack);
NotifyPropertyChanged(Properties.PrevTrack);
}