feat(multiplayer): 实现GET /rooms API

app/router/room.py

@@ -0,0 +1,35 @@
+from __future__ import annotations
+
+from app.database.room import RoomIndex
+from app.dependencies.database import get_db, get_redis
+from app.models.room import Room
+
+from .api_router import router
+
+from fastapi import Depends, HTTPException, Query
+from sqlmodel import select
+from sqlmodel.ext.asyncio.session import AsyncSession
+
+
+@router.get("/rooms", tags=["rooms"], response_model=list[Room])
+async def get_all_rooms(
+    mode: str = Query(
+        None
+    ),  # TODO: lazer源码显示房间不会是除了open以外的其他状态，先放在这里
+    status: str = Query(None),
+    category: str = Query(None),
+    db: AsyncSession = Depends(get_db),
+):
+    all_room_ids = (await db.exec(select(RoomIndex).where(True))).all()
+    redis = get_redis()
+    roomsList: list[Room] = []
+    if redis:
+        for room_index in all_room_ids:
+            dumped_room = redis.get(str(room_index.id))
+            if dumped_room:
+                actual_room = Room.model_validate_json(str(dumped_room))
+                if actual_room.status == status and actual_room.category == category:
+                    roomsList.append(actual_room)
+        return roomsList
+    else:
+        raise HTTPException(status_code=500, detail="Redis Error")