refactor(ebook-search): simplify search and phrase matching

python/ebook_search/api/routes/page.py

@@ -15,6 +15,7 @@ from python.ebook_search.api.dependencies import (
 from python.ebook_search.api.judge_tasks import is_judging_book, pop_book_judgment_outcome, start_book_phrase_judgment
 from python.ebook_search.api.web import templates
 from python.ebook_search.protected_phrases.generate_ngrams import recalculate_candidate_phrases_for_book
+from python.ebook_search.protected_phrases.store import count_protected_phrases
 from python.fastapi_tools import AsyncDbSession  # noqa: TC001 FastAPI resolves this annotated dependency at runtime
 from python.orm.richie import EbookCandidatePhrase, EbookChapter, EbookChunk, EbookProtectedPhrase, EbookSource
 
@@ -71,14 +72,6 @@ async def get_judged_candidate_count(session: AsyncSession, book_id: int) -> int
     )
 
 
-async def get_protected_count(session: AsyncSession, book_id: int) -> int:
-    """Return the number of protected phrases for one book."""
-    return (
-        await session.scalar(select(func.count(EbookProtectedPhrase.id)).where(EbookProtectedPhrase.book_id == book_id))
-        or 0
-    )
-
-
 async def get_candidates(session: AsyncSession, book_id: int) -> list[EbookCandidatePhrase]:
     """Return the indexed candidates for one book."""
     return list(
@@ -122,7 +115,7 @@ async def book_detail(source_id: int, request: Request, session: AsyncDbSession)
         chunk_count = await get_chunk_count(session, source.id)
         candidate_count = await get_candidate_count(session, source.id)
         judged_candidate_count = await get_judged_candidate_count(session, source.id)
-        protected_count = await get_protected_count(session, source.id)
+        protected_count = await count_protected_phrases(session, source.id)
         candidates = await get_candidates(session, source.id)
         protected_phrases = await get_protected_phrases(session, source.id)
     else: