feat: 初始提交

backend/app/api/routers/llm_config.py

@@ -0,0 +1,54 @@
+import logging
+
+from fastapi import APIRouter, Depends, HTTPException, status
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from ...core.dependencies import get_current_user
+from ...db.session import get_session
+from ...schemas.llm_config import LLMConfigCreate, LLMConfigRead
+from ...schemas.user import UserInDB
+from ...services.llm_config_service import LLMConfigService
+
+
+logger = logging.getLogger(__name__)
+
+router = APIRouter(prefix="/api/llm-config", tags=["LLM Configuration"])
+
+
+def get_llm_config_service(session: AsyncSession = Depends(get_session)) -> LLMConfigService:
+    return LLMConfigService(session)
+
+
+@router.get("", response_model=LLMConfigRead)
+async def read_llm_config(
+    service: LLMConfigService = Depends(get_llm_config_service),
+    current_user: UserInDB = Depends(get_current_user),
+) -> LLMConfigRead:
+    config = await service.get_config(current_user.id)
+    if not config:
+        logger.warning("用户 %s 尚未设置 LLM 配置", current_user.id)
+        raise HTTPException(status_code=404, detail="尚未设置自定义配置")
+    logger.info("用户 %s 获取 LLM 配置", current_user.id)
+    return config
+
+
+@router.put("", response_model=LLMConfigRead)
+async def upsert_llm_config(
+    payload: LLMConfigCreate,
+    service: LLMConfigService = Depends(get_llm_config_service),
+    current_user: UserInDB = Depends(get_current_user),
+) -> LLMConfigRead:
+    logger.info("用户 %s 更新 LLM 配置", current_user.id)
+    return await service.upsert_config(current_user.id, payload)
+
+
+@router.delete("", status_code=status.HTTP_204_NO_CONTENT)
+async def delete_llm_config(
+    service: LLMConfigService = Depends(get_llm_config_service),
+    current_user: UserInDB = Depends(get_current_user),
+) -> None:
+    deleted = await service.delete_config(current_user.id)
+    if not deleted:
+        logger.warning("用户 %s 删除 LLM 配置失败，未找到记录", current_user.id)
+        raise HTTPException(status_code=404, detail="未找到配置")
+    logger.info("用户 %s 删除 LLM 配置", current_user.id)