Refactor scrobbling code and add Music

If you send Track data from the Jellyfin Webhook plugin, we'll do the
right thing with it. Lots more to do to clean this up, but it also
involved moduralizing the code for scrobbling so it's a little simpler
to understand what's going on.

vrobbler/apps/videos/models.py

@@ -1,7 +1,10 @@
+import logging
+from typing import Dict, Tuple
 from django.db import models
 from django_extensions.db.models import TimeStampedModel
 from django.utils.translation import gettext_lazy as _
 
+logger = logging.getLogger(__name__)
 BNULL = {"blank": True, "null": True}
 
 
@@ -50,3 +53,45 @@ class Video(TimeStampedModel):
         if self.video_type == self.VideoType.TV_EPISODE:
             return f"{self.tv_series} - Season {self.season_number}, Episode {self.episode_number}"
         return self.title
+
+
+    @classmethod
+    def find_or_create(cls, data_dict: Dict) -> "Video":
+        """Given a data dict from Jellyfin, does the heavy lifting of looking up
+        the video and, if need, TV Series, creating both if they don't yet
+        exist.
+
+        """
+        video_dict = {
+            "title": data_dict.get("Name", ""),
+            "imdb_id": data_dict.get("Provider_imdb", None),
+            "video_type": Video.VideoType.MOVIE,
+            "year": data_dict.get("Year", ""),
+            "overview": data_dict.get("Overview", None),
+            "tagline": data_dict.get("Tagline", None),
+            "run_time_ticks": data_dict.get("RunTimeTicks", None),
+            "run_time": data_dict.get("RunTime", None),
+        }
+
+        if data_dict.get("ItemType", "") == "Episode":
+            series_name = data_dict.get("SeriesName", "")
+            series, series_created = Series.objects.get_or_create(name=series_name)
+            if series_created:
+                logger.debug(f"Created new series {series}")
+            else:
+                logger.debug(f"Found series {series}")
+            video_dict['video_type'] = Video.VideoType.TV_EPISODE
+            video_dict["tv_series_id"] = series.id
+            video_dict["tvdb_id"] = data_dict.get("Provider_tvdb", None)
+            video_dict["tvrage_id"] = data_dict.get("Provider_tvrage", None)
+            video_dict["episode_number"] = data_dict.get("EpisodeNumber", "")
+            video_dict["season_number"] = data_dict.get("SeasonNumber", "")
+
+
+        video, created = cls.objects.get_or_create(**video_dict)
+        if created:
+            logger.debug(f"Created new video: {video}")
+        else:
+            logger.debug(f"Found video {video}")
+
+        return video