Better bracket logic

backend/app/routes/tournaments/report.py

@@ -1,5 +1,5 @@
 # backend/app/routes/tournaments/report.py
-from typing import List, Optional
+from typing import Optional
 
 from fastapi import Depends, HTTPException, Query
 from sqlalchemy.orm import Session
@@ -45,7 +45,9 @@ async def report_score(
     _apply_score(match, report.sets)
     flag_modified(match, "sets")
     db.commit()
-    logic.advance_flow(db, t)
+
+    if match.winner_team_id:
+        logic.advance_winner(db, match, match.winner_team_id)
 
     await send_ws_update(id)
     return SUCCESS
@@ -59,11 +61,6 @@ async def edit_score(
     db: Session = Depends(get_db),
     user: Optional[str] = Depends(get_optional_user),
 ):
-    """
-    Allows correcting a score.
-    Note: If the winner changes, 'advance_flow' might need to handle
-    undoing previous advancements, but for now we just re-run the flow.
-    """
     t = crud.get_tournament(db, id)
     if not t:
         raise HTTPException(404, "Tournament not found")
@@ -74,12 +71,16 @@ async def edit_score(
     if not match:
         raise HTTPException(404, "Match not found")
 
+    logic.undo_advancement(db, match)
+
     if report.sets:
         _apply_score(match, report.sets)
 
     flag_modified(match, "sets")
     db.commit()
-    logic.advance_flow(db, t)
+
+    if match.winner_team_id:
+        logic.advance_winner(db, match, match.winner_team_id)
 
     await send_ws_update(id)
     return SUCCESS
@@ -103,6 +104,8 @@ async def clear_score(
     if not match:
         raise HTTPException(404, "Match not found")
 
+    logic.undo_advancement(db, match)
+
     match.winner_team_id = None
     match.status = MatchStatus.PENDING
     match.sets = []
@@ -114,7 +117,7 @@ async def clear_score(
     return SUCCESS
 
 
-def _apply_score(match: models.Match, sets: List[schemas.SetScore]):
+def _apply_score(match: models.Match, sets: list[schemas.SetScore]):
     """
     Calculates winner based on sets and updates the match object.
     Does NOT commit to DB.