添加音频代理

app/router/private/audio_proxy.py

@@ -0,0 +1,65 @@
+"""
+音频代理接口
+提供从osu!官方获取beatmapset音频预览的代理服务
+"""
+
+from __future__ import annotations
+
+from typing import Annotated
+
+from app.dependencies.database import get_redis
+from app.service.audio_proxy_service import AudioProxyService, get_audio_proxy_service
+
+from fastapi import APIRouter, Depends, HTTPException, Path
+from fastapi.responses import Response
+from loguru import logger
+import redis.asyncio as redis
+
+router = APIRouter(prefix="/audio", tags=["Audio Proxy"])
+
+
+async def get_audio_proxy_dependency(redis_client: Annotated[redis.Redis, Depends(get_redis)]) -> AudioProxyService:
+    """音频代理服务依赖注入"""
+    return get_audio_proxy_service(redis_client)
+
+
+
+
+@router.get("/beatmapset/{beatmapset_id}")
+async def get_beatmapset_audio(
+    beatmapset_id: Annotated[int, Path(description="谱面集ID", ge=1)],
+    audio_service: Annotated[AudioProxyService, Depends(get_audio_proxy_dependency)],
+):
+    """
+    获取谱面集的音频预览
+
+    根据谱面集ID获取osu!官方的音频预览文件。
+    音频文件会被缓存7天以提高响应速度。
+
+    参数:
+    - beatmapset_id: 谱面集ID
+
+    返回:
+    - 音频文件的二进制数据，Content-Type为audio/mpeg
+    """
+    try:
+        # 获取谱面集音频数据
+        audio_data, content_type = await audio_service.get_beatmapset_audio(beatmapset_id)
+
+        # 返回音频响应
+        return Response(
+            content=audio_data,
+            media_type=content_type,
+            headers={
+                "Cache-Control": "public, max-age=604800",  # 7天缓存
+                "Content-Length": str(len(audio_data)),
+                "Content-Disposition": f"inline; filename=\"{beatmapset_id}.mp3\"",
+            },
+        )
+
+    except HTTPException:
+        # 重新抛出HTTP异常
+        raise
+    except Exception as e:
+        logger.error(f"Unexpected error getting beatmapset audio: {e}")
+        raise HTTPException(status_code=500, detail="Internal server error") from e