[books] Fix comic book metadata importing

vrobbler/apps/books/management/commands/cleanup_book_metadata.py

@@ -160,7 +160,10 @@ class Command(BaseCommand):
         )
 
     def _enrich_book(self, book, sleep_secs):
-        from books.sources.comicvine import lookup_comic_from_comicvine
+        from books.sources.comicvine import (
+            lookup_comic_from_comicvine,
+            lookup_issue_by_comicvine_id,
+        )
         from books.sources.google import lookup_book_from_google
         from books.sources.openlibrary import lookup_book_from_openlibrary as lookup_book_from_ol
 
@@ -168,13 +171,13 @@ class Command(BaseCommand):
         author_name = book.author.name if book.author else None
         book_dict = {}
 
-        is_comic = bool(book.readcomics_url) or (
-            book.issue_number is not None or book.volume_number is not None
-        )
-        if is_comic and READCOMICSONLINE_URL in (book.readcomics_url or ""):
+        cv_data = None
+        if book.comicvine_id:
+            cv_data = lookup_issue_by_comicvine_id(str(book.comicvine_id))
+        if not cv_data:
             cv_data = lookup_comic_from_comicvine(title)
-            if cv_data:
-                book_dict.update(cv_data)
+        if cv_data:
+            book_dict.update(cv_data)
 
         ol_data = lookup_book_from_ol(title, author=author_name)
         time.sleep(sleep_secs)
@@ -261,6 +264,14 @@ class Command(BaseCommand):
             book.volume_number = data["volume_number"]
             update_fields.append("volume_number")
 
+        if data.get("volume") and not book.volume:
+            book.volume = data["volume"]
+            update_fields.append("volume")
+
+        if data.get("volume_comicvine_id") and not book.volume_comicvine_id:
+            book.volume_comicvine_id = data["volume_comicvine_id"]
+            update_fields.append("volume_comicvine_id")
+
         if update_fields:
             book.save(update_fields=update_fields)
             self.stdout.write(f"  [ENRICHED] {book} — {', '.join(update_fields)}")
@@ -279,4 +290,12 @@ class Command(BaseCommand):
                 book.genre.add(*new_genres)
                 self.stdout.write(f"  [GENRES] {book} — added {len(new_genres)} genres")
 
+        tags = data.pop("tags", [])
+        if tags:
+            existing_tags = set(book.tags.names())
+            new_tags = [t for t in tags if t not in existing_tags]
+            if new_tags:
+                book.tags.add(*new_tags)
+                self.stdout.write(f"  [TAGS] {book} — added {', '.join(new_tags)}")
+
         return changed if any(changed.values()) else None