audio: Save and restore the current track through the settings module

Signed-off-by: Anna Schumaker <Anna@NoWheyCreamery.com>

audio/player.py

@@ -1,4 +1,5 @@
 # Copyright 2021 (c) Anna Schumaker.
+from lib import settings
 from gi.repository import Gst
 import trackdb
 
@@ -11,7 +12,10 @@ class Player:
         self.bus = self.playbin.get_bus()
         self.bus.add_signal_watch()
 
-        self.track = None
+        track = trackdb.Tracks[settings.get_int("audio.trackid")]
+        self.load_set_state(track, Gst.State.PAUSED)
+        if self.track:
+            self.track.add_to_playlist("Previous")
 
     def get_state(self):
         (ret, state, pending) = self.playbin.get_state(Gst.CLOCK_TIME_NONE)
@@ -22,13 +26,15 @@ class Player:
     def load_track(self, track):
         self.track = track
         if track is not None:
+            settings.set("audio.trackid", track.trackid)
             uri = track.filepath().absolute().as_uri()
             self.playbin.set_property("uri", uri)
 
     def load_set_state(self, track, state):
         self.playbin.set_state(Gst.State.READY)
         self.load_track(track)
-        self.playbin.set_state(state)
+        if track is not None:
+            self.playbin.set_state(state)
 
     def next(self, *args):
         (track, cont) = trackdb.Stack.next()

audio/test_player.py

@@ -1,5 +1,6 @@
 # Copyright 2021 (c) Anna Schumaker.
 from . import player
+from lib import settings
 from gi.repository import Gst
 import pathlib
 import trackdb
@@ -16,6 +17,7 @@ class TestPlayer(unittest.TestCase):
         lib.scan().join()
 
     def setUp(self):
+        settings.reset()
         self.library = trackdb.Library.store[test_album]
         self.track = [ t for t in self.library.tracks if t.tracknumber == 1 ][0]
 
@@ -36,17 +38,25 @@ class TestPlayer(unittest.TestCase):
         uri = test_track.absolute().as_uri()
 
         self.assertEqual(play.playbin.get_property("uri"), None)
+
         play.load_track(self.track)
         self.assertEqual(play.playbin.get_property("uri"), uri)
-        self.assertEqual(play.get_state(), Gst.State.NULL)
+        self.assertEqual(play.track, self.track)
+        self.assertEqual(settings.get_int("audio.trackid"), self.track.trackid)
+        self.assertEqual(play.get_state(), Gst.State.READY)
         self.assertFalse(play.play_track(self.track))
 
+        trackdb.tags.User["Previous"].tracks.clear()
+        play2 = player.Player()
+        self.assertEqual(play2.track, self.track)
+        self.assertIn(self.track, trackdb.tags.User["Previous"].tracks)
+
     def test_player_play_pause(self):
         play = player.Player()
 
         play.load_track(self.track)
         self.assertEqual(play.track, self.track)
-        self.assertEqual(play.get_state(), Gst.State.NULL)
+        self.assertEqual(play.get_state(), Gst.State.READY)
 
         play.pause()
         self.assertEqual(play.get_state(), Gst.State.PAUSED)