Merge pull request #967 from croneter/fix-racing

Fix playback report not working after having played a non-Plex video file

resources/lib/kodimonitor.py

@@ -398,7 +398,11 @@ class KodiMonitor(xbmc.Monitor):
                 LOG.debug('No Plex id obtained - aborting playback report')
                 app.PLAYSTATE.player_states[playerid] = copy.deepcopy(app.PLAYSTATE.template)
                 return
-            item = PL.init_plex_playqueue(playqueue, plex_id=plex_id)
+            try:
+                item = PL.init_plex_playqueue(playqueue, plex_id=plex_id)
+            except PL.PlaylistError:
+                LOG.info('Could not initialize the Plex playlist')
+                return
             item.file = path
             # Set the Plex container key (e.g. using the Plex playqueue)
             container_key = None

resources/lib/playlist_func.py

@@ -312,7 +312,8 @@ def verify_kodi_item(plex_id, kodi_item):
     set to None if unsuccessful.
 
     Will raise a PlaylistError if plex_id is None and kodi_item['file'] starts
-    with either 'plugin' or 'http'
+    with either 'plugin' or 'http'.
+    Will raise KeyError if neither plex_id nor kodi_id are found
     """
     if plex_id is not None or kodi_item.get('id') is not None:
         # Got all the info we need
@@ -342,6 +343,8 @@ def verify_kodi_item(plex_id, kodi_item):
                                                   db_type='music')
     kodi_item['id'] = kodi_id
     kodi_item['type'] = None if kodi_id is None else kodi_type
+    if plex_id is None and kodi_id is None:
+        raise KeyError('Neither Plex nor Kodi id found for %s' % kodi_item)
     LOG.debug('Research results for kodi_item: %s', kodi_item)
     return kodi_item
 
@@ -462,8 +465,8 @@ def init_plex_playqueue(playlist, plex_id=None, kodi_item=None):
     Returns the first PKC playlist item or raises PlaylistError
     """
     LOG.debug('Initializing the playqueue on the Plex side: %s', playlist)
-    playlist.clear(kodi=False)
     verify_kodi_item(plex_id, kodi_item)
+    playlist.clear(kodi=False)
     try:
         if plex_id:
             item = playlist_item_from_plex(plex_id)

resources/lib/playqueue.py

@@ -86,7 +86,11 @@ def init_playqueue_from_plex_children(plex_id, transient_token=None):
     playqueue.clear()
     for i, child in enumerate(xml):
         api = API(child)
-        PL.add_item_to_playlist(playqueue, i, plex_id=api.plex_id)
+        try:
+            PL.add_item_to_playlist(playqueue, i, plex_id=api.plex_id)
+        except PL.PlaylistError:
+            LOG.error('Could not add Plex item to our playlist: %s, %s',
+                      child.tag, child.attrib)
     playqueue.plex_transient_token = transient_token
     LOG.debug('Firing up Kodi player')
     app.APP.player.play(playqueue.kodi_pl, None, False, 0)
@@ -166,6 +170,14 @@ class PlayqueueMonitor(backgroundthread.KillableThread):
                 except PL.PlaylistError:
                     # Could not add the element
                     pass
+                except KeyError:
+                    # Catches KeyError from PL.verify_kodi_item()
+                    # Hack: Kodi already started playback of a new item and we
+                    # started playback already using kodimonitors
+                    # PlayBackStart(), but the Kodi playlist STILL only shows
+                    # the old element. Hence ignore playlist difference here
+                    LOG.debug('Detected an outdated Kodi playlist - ignoring')
+                    return
                 except IndexError:
                     # This is really a hack - happens when using Addon Paths
                     # and repeatedly  starting the same element. Kodi will then