The PlaybackManager was a giant class that handled UI bindings, fetching
stream URLS, playback logic.
It now has been split up into:
- ViewModel::PlaybackManager, which handles UI interfacing and allowing
to swap out the Model::Playback implementation on the fly.
- Model::PlaybackManager, which is an interface for what a
PlaybackManager must do, handling queues/playlists, and controlling a
player.
- Model::LocalPlaybackManager, which is an Model::PlaybackManager
implementation for playing back Jellyfin media within the application.
- Model::PlaybackReporter, which reports the current playback state to
the Jellyfin server, for keeping track of played items.
- Model::Player, which handles playing back media from an URL and
the usual play/pause et cetera.
In a future commit, this would allow for introducing a
Model::RemoteJellyfinPlaybackManager, to control other Jellyfin
instances.
