feat: Enhance Audiobookshelf metadata handling to support additional series and book number tags

abogen/web/service.py

@@ -13,7 +13,7 @@ import traceback
 from dataclasses import dataclass, field
 from enum import Enum
 from pathlib import Path
-from typing import Any, Callable, Dict, Iterable, List, Optional, Mapping
+from typing import Any, Callable, Dict, Iterable, List, Optional, Mapping, Tuple
 
 from abogen.utils import get_internal_cache_path, get_user_settings_dir, load_config
 from abogen.voice_cache import bootstrap_voice_cache
@@ -264,6 +264,16 @@ def _split_people_field(raw: Any) -> List[str]:
 
 _LIST_SPLIT_RE = re.compile(r"[;,\n]")
 
+_SERIES_SEQUENCE_TAG_KEYS: Tuple[str, ...] = (
+    "series_index",
+    "series_position",
+    "series_sequence",
+    "series_number",
+    "seriesnumber",
+    "book_number",
+    "booknumber",
+)
+
 
 def _split_simple_list(raw: Any) -> List[str]:
     if raw is None:
@@ -340,8 +350,14 @@ def _build_audiobookshelf_metadata(job: Job) -> Dict[str, Any]:
     genres = _split_simple_list(tags.get("genre"))
     keywords = _split_simple_list(tags.get("tags") or tags.get("keywords"))
     language = _first_nonempty(tags.get("language"), tags.get("lang")) or job.language or ""
-    series_name = _first_nonempty(tags.get("series"), tags.get("series_name"))
-    series_sequence = _first_nonempty(tags.get("series_index"), tags.get("series_position"))
+    series_name = _first_nonempty(
+        tags.get("series"),
+        tags.get("series_name"),
+        tags.get("seriesname"),
+        tags.get("series_title"),
+        tags.get("seriestitle"),
+    )
+    series_sequence = _first_nonempty(*(tags.get(key) for key in _SERIES_SEQUENCE_TAG_KEYS))
     data: Dict[str, Any] = {
         "title": title,
         "authors": authors,

tests/test_service.py

@@ -2,7 +2,7 @@ from __future__ import annotations
 
 import io
 import time
-from abogen.web.service import Job, JobStatus, build_service, _JOB_LOGGER
+from abogen.web.service import Job, JobStatus, build_service, _JOB_LOGGER, _build_audiobookshelf_metadata
 
 
 def test_service_processes_job(tmp_path):
@@ -157,3 +157,34 @@ def test_retry_removes_failed_job(tmp_path):
         assert new_job.id in job_ids
     finally:
         service.shutdown()
+
+
+def test_audiobookshelf_metadata_uses_book_number(tmp_path):
+    source = tmp_path / "book.txt"
+    source.write_text("content", encoding="utf-8")
+
+    job = Job(
+        id="job-abs",
+        original_filename="book.txt",
+        stored_path=source,
+        language="en",
+        voice="af_alloy",
+        speed=1.0,
+        use_gpu=False,
+        subtitle_mode="Sentence",
+        output_format="mp3",
+        save_mode="Save next to input file",
+        output_folder=tmp_path,
+        replace_single_newlines=False,
+        subtitle_format="srt",
+        created_at=time.time(),
+        metadata_tags={
+            "series": "Example Saga",
+            "book_number": "7",
+        },
+    )
+
+    metadata = _build_audiobookshelf_metadata(job)
+
+    assert metadata["seriesName"] == "Example Saga"
+    assert metadata["seriesSequence"] == "7"