[books] Match books by Google Books ID or author name

tests/scrobbles_tests/test_book_enrichment.py

@@ -28,7 +28,11 @@ def test_enrich_book_metadata_tags_success(mock_lookup):
 
 @pytest.mark.django_db
 @patch("books.models.lookup_book_from_ol", return_value={})
-def test_enrich_book_metadata_tags_failure_when_no_match(mock_lookup):
+@patch("books.models.lookup_comic_from_locg", return_value={})
+@patch("books.models.lookup_book_from_google", return_value={})
+def test_enrich_book_metadata_tags_failure_when_no_match(
+    mock_google, mock_locg, mock_ol
+):
     book = Book.objects.create(title="Unknown Book", pages=100)
 
     enrich_book_metadata(book.id)
@@ -40,7 +44,11 @@ def test_enrich_book_metadata_tags_failure_when_no_match(mock_lookup):
 
 @pytest.mark.django_db
 @patch("books.models.lookup_book_from_ol", side_effect=Exception("boom"))
-def test_enrich_book_metadata_tags_failure_on_exception(mock_lookup):
+@patch("books.models.lookup_comic_from_locg", side_effect=Exception("boom"))
+@patch("books.models.lookup_book_from_google", side_effect=Exception("boom"))
+def test_enrich_book_metadata_tags_failure_on_exception(
+    mock_google, mock_locg, mock_ol
+):
     book = Book.objects.create(title="Test Book", pages=100)
 
     enrich_book_metadata(book.id)
@@ -113,3 +121,120 @@ def test_fix_metadata_does_not_crash_on_locg_data_with_isbn():
             assert enriched is True
             book.refresh_from_db()
             assert book.summary == "A comic summary"
+
+
+@pytest.mark.django_db
+def test_find_or_create_returns_existing_by_title():
+    book = Book.objects.create(original_title="Dune", title="Dune")
+    with patch("books.models.lookup_book_from_google") as mock_google:
+        found = Book.find_or_create("Dune")
+        assert found.id == book.id
+        mock_google.assert_not_called()
+
+
+@pytest.mark.django_db
+@patch("books.models.lookup_comic_from_comicvine", return_value={})
+@patch("books.models.lookup_book_from_ol", return_value={})
+@patch("books.models.lookup_book_from_google")
+def test_find_or_create_reuses_existing_by_google_books_id(
+    mock_google, mock_ol, mock_comicvine
+):
+    existing = Book.objects.create(
+        original_title="Dune - 50th Anniversary",
+        title="Dune",
+        google_books_id="gbooks_123",
+    )
+    mock_google.return_value = {
+        "title": "Dune",
+        "google_books_id": "gbooks_123",
+        "authors": ["Frank Herbert"],
+        "pages": 412,
+    }
+
+    found = Book.find_or_create("Dune")
+
+    assert found.id == existing.id
+    assert Book.objects.filter(original_title="Dune").count() == 0
+    assert Book.objects.count() == 1
+    assert found.authors.filter(name="Frank Herbert").exists()
+
+
+@pytest.mark.django_db
+@patch("books.models.lookup_comic_from_comicvine", return_value={})
+@patch("books.models.lookup_book_from_ol", return_value={})
+@patch("books.models.lookup_book_from_google")
+def test_find_or_create_matches_by_title_and_author(
+    mock_google, mock_ol, mock_comicvine
+):
+    author = Author.objects.create(name="Frank Herbert")
+    existing = Book.objects.create(original_title="Dune - Part 1", title="Dune")
+    existing.authors.add(author)
+    mock_google.return_value = {
+        "title": "Dune",
+        "authors": ["Frank Herbert"],
+        "pages": 412,
+    }
+
+    found = Book.find_or_create("Dune", author="Frank Herbert")
+
+    assert found.id == existing.id
+    assert Book.objects.count() == 1
+
+
+@pytest.mark.django_db
+@patch("books.models.lookup_comic_from_comicvine", return_value={})
+@patch("books.models.lookup_book_from_ol", return_value={})
+@patch("books.models.lookup_book_from_google")
+def test_find_or_create_stores_google_books_id(mock_google, mock_ol, mock_comicvine):
+    mock_google.return_value = {
+        "title": "Dune",
+        "google_books_id": "gbooks_456",
+        "authors": ["Frank Herbert"],
+        "pages": 412,
+    }
+
+    book = Book.find_or_create("Dune")
+
+    assert book.google_books_id == "gbooks_456"
+    assert book.authors.filter(name="Frank Herbert").exists()
+
+
+@patch("books.sources.google.requests.get")
+def test_lookup_book_from_google_captures_volume_id(mock_get):
+    from books.sources.google import lookup_book_from_google
+
+    mock_response = mock_get.return_value
+    mock_response.status_code = 200
+    mock_response.content = b"""
+    {"items": [
+        {
+            "id": "gbooks_789",
+            "volumeInfo": {
+                "title": "Dune",
+                "authors": ["Frank Herbert"],
+                "publishedDate": "1965",
+                "pageCount": 412
+            }
+        }
+    ]}
+    """
+
+    result = lookup_book_from_google("Dune")
+
+    assert result["google_books_id"] == "gbooks_789"
+    assert result["authors"] == ["Frank Herbert"]
+    assert result["first_publish_year"] == 1965
+
+
+@patch("books.sources.google.requests.get")
+def test_lookup_book_from_google_includes_author_in_query(mock_get):
+    from books.sources.google import lookup_book_from_google
+
+    mock_response = mock_get.return_value
+    mock_response.status_code = 200
+    mock_response.content = b'{"items": []}'
+
+    lookup_book_from_google("Dune", author="Frank Herbert")
+
+    args, kwargs = mock_get.call_args
+    assert "inauthor:Frank Herbert" in kwargs["params"]["q"]