import logging
import os
from pathlib import Path

from dotenv import load_dotenv

BASE_DIR = Path(__file__).parent
load_dotenv(BASE_DIR / ".env", override=False)

LOG_LEVEL = os.getenv("LOG_LEVEL", "DEBUG").upper()

logging.basicConfig(
    level=getattr(logging, LOG_LEVEL, logging.DEBUG),
    format="%(asctime)s [%(levelname)s] %(name)s: %(message)s",
    datefmt="%H:%M:%S",
)
# 压制第三方库的 DEBUG 噪音
logging.getLogger("httpx").setLevel(logging.WARNING)
logging.getLogger("httpcore").setLevel(logging.WARNING)
logging.getLogger("openai").setLevel(logging.WARNING)
logging.getLogger("uvicorn").setLevel(logging.INFO)

# 路由必须在 load_dotenv 之后导入，因为模块级代码会读取环境变量
from routes.v1.chat_callback import router as chat_callback_router  # noqa: E402
from routes.v1.debug import router as debug_router  # noqa: E402
from routes.v1.history import router as history_router  # noqa: E402
from routes.v1.proxy import router as proxy_router  # noqa: E402
from routes.v1.scenes import router as scenes_router  # noqa: E402

from fastapi import FastAPI  # noqa: E402
from fastapi.middleware.cors import CORSMiddleware  # noqa: E402

app = FastAPI(
    title="RTC AIGC 后端",
    description=(
        "火山引擎 RTC AI 语音对话后端服务。\n\n"
        "## 鉴权说明\n"
        "- **内部接口**（`/getScenes` `/proxy` `/api/session/history`）：由 java-mock 网关调用，"
        "需附加 `X-Internal-Signature` HMAC 签名 Header。\n"
        "- **LLM 回调**（`/api/chat_callback`）：由火山引擎 RTC 平台回调，"
        "需在 `Authorization: Bearer <key>` 中携带 `CUSTOM_LLM_API_KEY`。\n"
        "- **调试接口**（`/debug/*`）：无鉴权，仅用于本地开发。"
    ),
    version="1.0.0",
)

app.add_middleware(
    CORSMiddleware,
    allow_origins=["*"],
    allow_methods=["*"],
    allow_headers=["*"],
)


@app.get("/health", include_in_schema=False)
async def health():
    return {"status": "ok"}


app.include_router(proxy_router, prefix="/v1")
app.include_router(scenes_router, prefix="/v1")
app.include_router(chat_callback_router, prefix="/v1")
app.include_router(debug_router, prefix="/v1")
app.include_router(history_router, prefix="/v1")

if __name__ == "__main__":
    import uvicorn

    uvicorn.run("server:app", host="0.0.0.0", port=3001, reload=True)