backend/app/main.py

@@ -32,76 +32,217 @@ app.include_router(auth_router)
 app.include_router(admin_router)
 app.include_router(games_router)
 
+
 def _rand_join_code(n: int = 6) -> str:
     # digits only (kahoot style)
     return "".join(random.choice(string.digits) for _ in range(n))
 
+
+def _has_column(db: Session, table: str, col: str) -> bool:
+    """
+SQLite + Postgres friendly check.
+We use a pragma first (SQLite), fallback to information_schema.
+    """
+    try:
+        rows = db.execute(text(f"PRAGMA table_info({table})")).all()
+        return any(r[1] == col for r in rows)  # pragma: column name is at index 1
+    except Exception:
+        db.rollback()
+
+    try:
+        rows = db.execute(
+            text(
+                """
+SELECT column_name
+FROM information_schema.columns
+WHERE table_name = :t AND column_name = :c
+                """
+            ),
+            {"t": table, "c": col},
+        ).all()
+        return len(rows) > 0
+    except Exception:
+        db.rollback()
+        return False
+
+
 def _auto_migrate(db: Session):
     """
 Very small, pragmatic auto-migration (no alembic).
 - creates missing tables via create_all
 - adds missing columns via ALTER TABLE (best effort)
-    """
-    # Users.theme_key
+- supports old schema (join_code/chip_code) and new schema (code/chip)
+"""
+
+    # --- users.theme_key ---
+    if not _has_column(db, "users", "theme_key"):
         try:
             db.execute(text("ALTER TABLE users ADD COLUMN theme_key VARCHAR DEFAULT 'default'"))
             db.commit()
         except Exception:
             db.rollback()
 
-    # Games.join_code + winner_user_id
+    # --- games: code / join_code + winner_user_id + host_user_id (optional) ---
+    # We support both column names:
+    # old: join_code
+    # new: code
+    has_join_code = _has_column(db, "games", "join_code")
+    has_code = _has_column(db, "games", "code")
+
+    # If neither exists, create "code" (new preferred)
+    if not has_join_code and not has_code:
         try:
-        db.execute(text("ALTER TABLE games ADD COLUMN join_code VARCHAR"))
+            db.execute(text("ALTER TABLE games ADD COLUMN code VARCHAR"))
             db.commit()
+            has_code = True
         except Exception:
             db.rollback()
 
+    # If only join_code exists but your code now expects "code",
+    # add "code" too and later mirror values.
+    if has_join_code and not has_code:
+        try:
+            db.execute(text("ALTER TABLE games ADD COLUMN code VARCHAR"))
+            db.commit()
+            has_code = True
+        except Exception:
+            db.rollback()
+
+    # winner_user_id
+    if not _has_column(db, "games", "winner_user_id"):
         try:
             db.execute(text("ALTER TABLE games ADD COLUMN winner_user_id VARCHAR"))
             db.commit()
         except Exception:
             db.rollback()
 
-    # SheetState.chip_code
+    # host_user_id (nice to have for "only host can set winner")
+    if not _has_column(db, "games", "host_user_id"):
         try:
-        db.execute(text("ALTER TABLE sheet_state ADD COLUMN chip_code VARCHAR"))
+            db.execute(text("ALTER TABLE games ADD COLUMN host_user_id VARCHAR"))
             db.commit()
         except Exception:
             db.rollback()
 
-    # Ensure unique index for join_code (best effort)
+    # --- sheet_state chip / chip_code ---
+    has_chip_code = _has_column(db, "sheet_state", "chip_code")
+    has_chip = _has_column(db, "sheet_state", "chip")
+
+    if not has_chip_code and not has_chip:
+        # prefer "chip"
         try:
+            db.execute(text("ALTER TABLE sheet_state ADD COLUMN chip VARCHAR"))
+            db.commit()
+            has_chip = True
+        except Exception:
+            db.rollback()
+
+    # if old chip_code exists but new expects chip -> add chip and mirror later
+    if has_chip_code and not has_chip:
+        try:
+            db.execute(text("ALTER TABLE sheet_state ADD COLUMN chip VARCHAR"))
+            db.commit()
+            has_chip = True
+        except Exception:
+            db.rollback()
+
+    # --- indexes for game code ---
+    # We create unique index for the column(s) that exist.
+    try:
+        if has_join_code:
             db.execute(text("CREATE UNIQUE INDEX IF NOT EXISTS ix_games_join_code ON games (join_code)"))
+        if has_code:
+            db.execute(text("CREATE UNIQUE INDEX IF NOT EXISTS ix_games_code ON games (code)"))
         db.commit()
     except Exception:
         db.rollback()
 
-    # Backfill join_code for existing games
-    games = db.query(Game).filter((Game.join_code == None) | (Game.join_code == "")).all()  # noqa: E711
-    if games:
-        used = set([r[0] for r in db.execute(text("SELECT join_code FROM games WHERE join_code IS NOT NULL")).all() if r[0]])
-        for g in games:
+    # --- backfill code values ---
+    # 1) if join_code exists and code exists, ensure code mirrors join_code where missing
+    if has_join_code and has_code:
+        try:
+            db.execute(text("UPDATE games SET code = join_code WHERE (code IS NULL OR code = '') AND join_code IS NOT NULL AND join_code <> ''"))
+            db.commit()
+        except Exception:
+            db.rollback()
+
+    # 2) generate missing codes in whichever column we have
+    # Prefer writing into "code" (new), but also keep join_code in sync if present.
+    code_col = "code" if has_code else "join_code" if has_join_code else None
+    if code_col:
+        try:
+            missing = db.execute(
+                text(f"SELECT id FROM games WHERE {code_col} IS NULL OR {code_col} = ''")
+            ).all()
+        except Exception:
+            db.rollback()
+            missing = []
+
+        if missing:
+            try:
+                used_rows = db.execute(text(f"SELECT {code_col} FROM games WHERE {code_col} IS NOT NULL")).all()
+                used = set([r[0] for r in used_rows if r and r[0]])
+            except Exception:
+                db.rollback()
+                used = set()
+
+            for (gid,) in missing:
                 code = _rand_join_code()
                 while code in used:
                     code = _rand_join_code()
-            g.join_code = code
                 used.add(code)
-        db.commit()
 
-    # Backfill membership: ensure owner is member
+                try:
+                    # write into main col
+                    db.execute(text(f"UPDATE games SET {code_col} = :c WHERE id = :id"), {"c": code, "id": gid})
+                    # keep both in sync if both exist
+                    if has_join_code and code_col == "code":
+                        db.execute(text("UPDATE games SET join_code = :c WHERE id = :id AND (join_code IS NULL OR join_code = '')"), {"c": code, "id": gid})
+                    if has_code and code_col == "join_code":
+                        db.execute(text("UPDATE games SET code = :c WHERE id = :id AND (code IS NULL OR code = '')"), {"c": code, "id": gid})
+                    db.commit()
+                except Exception:
+                    db.rollback()
+
+    # --- backfill host_user_id: default to owner_user_id ---
+    try:
+        if _has_column(db, "games", "host_user_id"):
+            db.execute(text("UPDATE games SET host_user_id = owner_user_id WHERE host_user_id IS NULL OR host_user_id = ''"))
+            db.commit()
+    except Exception:
+        db.rollback()
+
+    # --- backfill membership: ensure owner is member ---
+    # uses ORM; only relies on existing table GameMember (create_all already ran)
+    try:
         all_games = db.query(Game).all()
         for g in all_games:
-        exists = db.query(GameMember).filter(GameMember.game_id == g.id, GameMember.user_id == g.owner_user_id).first()
+            exists = (
+                db.query(GameMember)
+                .filter(GameMember.game_id == g.id, GameMember.user_id == g.owner_user_id)
+                .first()
+            )
             if not exists:
                 db.add(GameMember(game_id=g.id, user_id=g.owner_user_id))
         db.commit()
+    except Exception:
+        db.rollback()
+
+    # --- mirror chip_code -> chip if both exist and chip empty ---
+    if has_chip_code and has_chip:
+        try:
+            db.execute(text("UPDATE sheet_state SET chip = chip_code WHERE (chip IS NULL OR chip = '') AND chip_code IS NOT NULL AND chip_code <> ''"))
+            db.commit()
+        except Exception:
+            db.rollback()
+
 
 def seed_entries(db: Session):
     if db.query(Entry).count() > 0:
         return
-    suspects = ["Draco Malfoy","Crabbe & Goyle","Lucius Malfoy","Dolores Umbridge","Peter Pettigrew","Bellatrix Lestrange"]
-    items = ["Schlaftrunk","Verschwindekabinett","Portschlüssel","Impedimenta","Petrificus Totalus","Alraune"]
-    locations = ["Große Halle","Krankenflügel","Raum der Wünsche","Klassenzimmer für Zaubertränke","Pokalszimmer","Klassenzimmer für Wahrsagen","Eulerei","Bibliothek","Verteidigung gegen die dunklen Künste"]
+    suspects = ["Draco Malfoy", "Crabbe & Goyle", "Lucius Malfoy", "Dolores Umbridge", "Peter Pettigrew", "Bellatrix Lestrange"]
+    items = ["Schlaftrunk", "Verschwindekabinett", "Portschlüssel", "Impedimenta", "Petrificus Totalus", "Alraune"]
+    locations = ["Große Halle", "Krankenflügel", "Raum der Wünsche", "Klassenzimmer für Zaubertränke", "Pokalszimmer", "Klassenzimmer für Wahrsagen", "Eulerei", "Bibliothek", "Verteidigung gegen die dunklen Künste"]
 
     for s in suspects:
         db.add(Entry(category=Category.suspect.value, label=s))
@@ -111,6 +252,7 @@ def seed_entries(db: Session):
         db.add(Entry(category=Category.location.value, label=l))
     db.commit()
 
+
 def ensure_admin(db: Session):
     admin_email = os.environ.get("ADMIN_EMAIL", "admin@local").lower().strip()
     admin_pw = os.environ.get("ADMIN_PASSWORD", "ChangeMeNow123!")
@@ -126,6 +268,7 @@ def ensure_admin(db: Session):
         )
         db.commit()
 
+
 @app.on_event("startup")
 def on_startup():
     # create new tables