[tracks] Allow adding tracks to monthly playlists

vrobbler/apps/scrobbles/urls.py

@@ -163,6 +163,11 @@ urlpatterns = [
         views.add_to_mopidy_queue,
         name="add-to-mopidy-queue",
     ),
+    path(
+        "scrobbles/<slug:uuid>/add-to-mopidy-monthly-playlist/",
+        views.add_to_mopidy_monthly_playlist,
+        name="add-to-mopidy-monthly-playlist",
+    ),
     path("scrobbles/<slug:uuid>/start/", views.scrobble_start, name="start"),
     path("scrobbles/<slug:uuid>/finish/", views.scrobble_finish, name="finish"),
     path("scrobbles/<slug:uuid>/cancel/", views.scrobble_cancel, name="cancel"),

vrobbler/apps/scrobbles/utils.py

@@ -15,6 +15,7 @@ from django.db import models
 from django.db.models.fields.json import KeyTextTransform
 from django.db.models.functions import Cast, TruncDate
 from django.utils import timezone
+from django.utils.dateformat import DateFormat
 from profiles.models import UserProfile
 from profiles.utils import now_user_timezone
 from scrobbles.constants import LONG_PLAY_MEDIA
@@ -625,6 +626,89 @@ def remove_track_from_mopidy_favorites_playlist(favorite):
         )
 
 
+def _ensure_mopidy_playlist_by_name(profile, playlist_name):
+    """Find or create a Mopidy playlist by name (without m3u: prefix handling)."""
+    playlist_name = playlist_name.removeprefix("m3u:").removesuffix(".m3u8")
+    try:
+        playlists = _mopidy_rpc(profile, "core.playlists.as_list") or []
+        for pl in playlists:
+            if pl.get("name") == playlist_name:
+                existing = _mopidy_rpc(
+                    profile, "core.playlists.lookup", {"uri": pl["uri"]}
+                )
+                if existing:
+                    return existing
+    except (requests.RequestException, RuntimeError):
+        pass
+
+    result = _mopidy_rpc(
+        profile, "core.playlists.create",
+        {"name": playlist_name, "uri_scheme": "m3u"},
+    )
+    return result
+
+
+def add_track_to_mopidy_monthly_playlist(scrobble):
+    """Add a scrobbled track to a monthly Mopidy playlist based on the user's pattern."""
+    profile = scrobble.user.profile
+    pattern = profile.monthly_mopidy_playlist_pattern
+    if not pattern or not profile.mopidy_api_url:
+        return
+
+    mopidy_uri = scrobble.log.get("raw_data", {}).get("mopidy_uri")
+    if not mopidy_uri:
+        return
+
+    playlist_name = DateFormat(scrobble.timestamp).format(pattern)
+    if not playlist_name:
+        return
+
+    try:
+        playlist = _ensure_mopidy_playlist_by_name(profile, playlist_name)
+        if playlist and playlist.get("uri"):
+            existing_tracks = playlist.get("tracks") or []
+            track_uris = [t["uri"] for t in existing_tracks if isinstance(t, dict)]
+            if mopidy_uri in track_uris:
+                logger.info(
+                    "Track already in monthly Mopidy playlist",
+                    extra={"playlist": playlist_name, "mopidy_uri": mopidy_uri},
+                )
+                return
+
+            new_track = {"__model__": "Track", "uri": mopidy_uri}
+            existing_tracks.append(new_track)
+            _mopidy_rpc(
+                profile,
+                "core.playlists.save",
+                {
+                    "playlist": {
+                        "__model__": "Playlist",
+                        "uri": playlist["uri"],
+                        "name": playlist.get("name", playlist_name),
+                        "tracks": existing_tracks,
+                        "last_modified": playlist.get("last_modified"),
+                    },
+                },
+            )
+        else:
+            _mopidy_rpc(profile, "core.tracklist.add", {"uris": [mopidy_uri]})
+
+        logger.info(
+            "Added track to monthly Mopidy playlist",
+            extra={
+                "playlist": playlist_name,
+                "track_id": scrobble.media_obj.id,
+                "user_id": scrobble.user_id,
+            },
+        )
+    except (requests.RequestException, RuntimeError) as e:
+        logger.debug(e)
+        logger.error(
+            "Failed to add track to monthly Mopidy playlist",
+            extra={"playlist": playlist_name, "error": str(e)},
+        )
+
+
 def remove_last_part(url: str) -> str:
     url = url.rstrip("/")
     if "/" not in url:

vrobbler/apps/scrobbles/views.py

@@ -1034,6 +1034,38 @@ def add_to_mopidy_queue(request, uuid):
     return redirect("scrobbles:detail", uuid=uuid)
 
 
+@require_POST
+def add_to_mopidy_monthly_playlist(request, uuid):
+    if not request.user.is_authenticated:
+        return redirect("scrobbles:detail", uuid=uuid)
+
+    scrobble = get_object_or_404(Scrobble, uuid=uuid, user=request.user)
+    profile = request.user.profile
+    pattern = profile.monthly_mopidy_playlist_pattern
+
+    if not pattern or not profile.mopidy_api_url:
+        messages.add_message(
+            request,
+            messages.ERROR,
+            "Monthly playlist pattern or Mopidy API URL not configured in your profile.",
+        )
+        return redirect("scrobbles:detail", uuid=uuid)
+
+    from scrobbles.utils import add_track_to_mopidy_monthly_playlist
+
+    add_track_to_mopidy_monthly_playlist(scrobble)
+
+    from django.utils.dateformat import DateFormat
+
+    playlist_name = DateFormat(scrobble.timestamp).format(pattern)
+    messages.add_message(
+        request,
+        messages.SUCCESS,
+        f'Added "{scrobble.media_obj}" to monthly playlist "{playlist_name}".',
+    )
+    return redirect("scrobbles:detail", uuid=uuid)
+
+
 @require_POST
 def toggle_favorite(request, media_type, object_id):
     if not request.user.is_authenticated: