Add Goodreads series and group them on the about page

tools/content/books.py

@@ -73,6 +73,30 @@ def update_book(text: str, change) -> dict:
     return books[index]
 
 
+def series_tag(series: dict, entry: dict) -> dict:
+    tag = {"name": series["name"], "url": series["url"]}
+    if entry.get("position"):
+        tag["position"] = entry["position"]
+    return tag
+
+
+def add_series_book(series: dict, entry: dict, shelf: str) -> dict:
+    check_shelf(shelf)
+    tag = series_tag(series, entry)
+    books = load_books()
+    index = find_index(books, entry["goodreadsId"])
+    if index is not None:
+        books[index] = {**books[index], "shelf": shelf, "series": tag}
+        save_books(books)
+        return books[index]
+    book = add_book(entry["url"], shelf)
+    return update_book(book["goodreadsId"], lambda stored: {**stored, "series": tag})
+
+
+def library_shelves() -> dict[str, str]:
+    return {book["goodreadsId"]: book.get("shelf", "read") for book in load_books()}
+
+
 def add_book(url: str, shelf: str = "read", rating: int | None = None) -> dict:
     check_shelf(shelf)
     if rating is not None: