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 Populate()
{
Logger.Current.Log(new CallerInfo(), LogLevel.Info, "Calling Popuplate");
List <PlayQueueEntryTable> allEntries = DatabaseManager.Current.FetchPlayQueueEntries();
PlayQueueEntryModel head = null;
foreach (PlayQueueEntryTable playQueueEntry in allEntries)
{
PlayQueueEntryModel newEntry = new PlayQueueEntryModel(playQueueEntry);
LookupMap.Add(newEntry.RowId, newEntry);
if (newEntry.PrevId == 0)
{
DebugHelper.Assert(new CallerInfo(), head == null, "Second head found in play queue!!!");
head = newEntry;
}
}
PlayQueueEntryModel currentLocation = head;
while (currentLocation != null && PlaybackQueue.Count < LookupMap.Count)
{
PlaybackQueue.Add(currentLocation);
if (LookupMap.ContainsKey(currentLocation.NextId))
{
currentLocation = LookupMap[currentLocation.NextId];
}
else
{
currentLocation = null;
}
}
DebugHelper.Assert(new CallerInfo(), currentLocation == null, "Circular reference found in Play Queue");
DebugHelper.Assert(new CallerInfo(), PlaybackQueue.Count == LookupMap.Count, "Missing element found in Play Queue");
CurrentPlaybackQueueEntryId = ApplicationSettings.GetSettingsValue <int>(ApplicationSettings.CURRENT_PLAYQUEUE_POSITION, 0);
if (CurrentPlaybackQueueEntryId == 0)
{
ResetPlayerToStart();
}
}
public void RemoveEntry(int entryId)
{
if (entryId == CurrentPlaybackQueueEntryId)
{
Stop();
CurrentPlaybackQueueEntryId = 0;
}
PlayQueueEntryModel songToRemove = null;
if (!LookupMap.TryGetValue(entryId, out songToRemove))
{
DebugHelper.Alert(new CallerInfo(), "Tried to remove play queue entry {0} but its not in our lookup", entryId);
return;
}
PlayQueueEntryModel previousModel = null;
if (LookupMap.TryGetValue(songToRemove.PrevId, out previousModel))
{
previousModel.NextId = songToRemove.NextId;
}
PlayQueueEntryModel nextModel = null;
if (LookupMap.TryGetValue(songToRemove.NextId, out nextModel))
{
nextModel.PrevId = songToRemove.PrevId;
}
PlaybackQueue.Remove(songToRemove);
LookupMap.Remove(songToRemove.RowId);
DatabaseManager.Current.DeletePlayQueueEntry(songToRemove.RowId);
NotifyPropertyChanged(Properties.NextTrack);
NotifyPropertyChanged(Properties.PrevTrack);
}
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);
}