feat(score): support calculate pp

app/fetcher/osu_dot_direct.py

@@ -4,6 +4,7 @@ from ._base import BaseFetcher
 
 from httpx import AsyncClient
 from loguru import logger
+import redis
 
 
 class OsuDotDirectFetcher(BaseFetcher):
@@ -17,3 +18,12 @@ class OsuDotDirectFetcher(BaseFetcher):
             )
             response.raise_for_status()
             return response.text
+
+    async def get_or_fetch_beatmap_raw(
+        self, redis: redis.Redis, beatmap_id: int
+    ) -> str:
+        if redis.exists(f"beatmap:{beatmap_id}:raw"):
+            return redis.get(f"beatmap:{beatmap_id}:raw")  # pyright: ignore[reportReturnType]
+        raw = await self.get_beatmap_raw(beatmap_id)
+        redis.set(f"beatmap:{beatmap_id}:raw", raw, ex=60 * 60 * 24)
+        return raw