format, sort categories

app/main.py

@@ -22,6 +22,7 @@ app.mount("/static", StaticFiles(directory="static"), name="static")
 
 templates = Jinja2Templates(directory="templates")
 
+
 @app.get("/")
 async def root(request: Request) -> HTMLResponse:
     return templates.TemplateResponse(
@@ -29,22 +30,29 @@ async def root(request: Request) -> HTMLResponse:
     )
 
 
-
 @app.get("/vote")
-async def vote(request: Request, session_id : str, db: Annotated[Session, Depends(get_db)]) -> HTMLResponse:
-    songs = [Song(**s.__dict__, vote=v) for s, v in get_songs_and_vote_for_session(db, session_id)]
+async def vote(request: Request, session_id: str, db: Annotated[Session, Depends(get_db)]) -> HTMLResponse:
+    songs = [Song(**s.__dict__, vote=v)
+             for s, v in get_songs_and_vote_for_session(db, session_id)]
 
     songs_by_category = {}
     all_categories = set()
+
     for song in songs:
         if song.main_category not in songs_by_category:
             songs_by_category[song.main_category] = []
         songs_by_category[song.main_category].append(song)
         all_categories.update(song.categories.keys())
+
+    all_categories = list(all_categories)
+    all_categories.sort()
+
+    print(all_categories)
+
     return templates.TemplateResponse(
         request=request, name="voting.html", context={
-            "songs_by_category": songs_by_category, 
+            "songs_by_category": songs_by_category,
             "all_categories": {c: i+1 for i, c in enumerate(all_categories)},
             "session_id": session_id
-            }
-    )
+        }
+    )