init

backend/app/api/settings.py

@@ -0,0 +1,70 @@
+from typing import Annotated
+from fastapi import APIRouter, Depends
+from sqlalchemy.ext.asyncio import AsyncSession
+from sqlalchemy import select
+
+from app.database import get_db
+from app.models.config import Config
+from app.schemas.schemas import SettingsOut, SettingsUpdate
+from app.services.llm_client import llm_client
+from app.config import settings
+
+router = APIRouter(prefix="/settings", tags=["系统设置"])
+
+
+async def _get_config_value(db: AsyncSession, key: str, default: str = "") -> str:
+    """获取配置值"""
+    result = await db.execute(select(Config).where(Config.key == key))
+    config = result.scalar_one_or_none()
+    return config.value if config else default
+
+
+@router.get("", response_model=SettingsOut)
+async def get_settings(db: Annotated[AsyncSession, Depends(get_db)]):
+    """获取系统配置"""
+    return SettingsOut(
+        llm_provider=await _get_config_value(db, "llm_provider", settings.LLM_PROVIDER),
+        llm_model=await _get_config_value(db, "llm_model", settings.LLM_MODEL),
+        llm_base_url=await _get_config_value(db, "llm_base_url", settings.LLM_BASE_URL),
+        llm_api_key=await _get_config_value(db, "llm_api_key", "****"),
+        segment_max_lines=int(await _get_config_value(db, "segment_max_lines", str(settings.SEGMENT_MAX_LINES))),
+        story_min_lines=int(await _get_config_value(db, "story_min_lines", str(settings.STORY_MIN_LINES))),
+        confidence_threshold=float(await _get_config_value(db, "confidence_threshold", str(settings.CONFIDENCE_THRESHOLD))),
+        temperature=float(await _get_config_value(db, "temperature", str(settings.TEMPERATURE))),
+    )
+
+
+@router.put("")
+async def update_settings(data: SettingsUpdate, db: Annotated[AsyncSession, Depends(get_db)]):
+    """更新系统配置"""
+    updates = data.model_dump(exclude_none=True)
+    for key, value in updates.items():
+        # API Key 脱敏处理
+        if key == "llm_api_key" and value == "****":
+            continue
+
+        existing = await db.execute(select(Config).where(Config.key == key))
+        config = existing.scalar_one_or_none()
+        if config:
+            config.value = str(value)
+        else:
+            db.add(Config(key=key, value=str(value)))
+
+    await db.commit()
+
+    # 更新 LLM 客户端配置
+    if "llm_base_url" in updates:
+        llm_client.update_config(base_url=updates["llm_base_url"])
+    if "llm_api_key" in updates:
+        llm_client.update_config(api_key=updates["llm_api_key"])
+    if "llm_model" in updates:
+        llm_client.update_config(model=updates["llm_model"])
+
+    return {"message": "配置已保存"}
+
+
+@router.post("/test-llm")
+async def test_llm():
+    """测试 LLM 连接"""
+    result = await llm_client.test_connection()
+    return result