from fastapi import APIRouter, HTTPException, Body, status
from fastapi.responses import JSONResponse
import httpx
from ..core.logger import get_logger
from ..core.config import settings

logger = get_logger(__name__)

router = APIRouter()


@router.get("/scoring_config", summary="[代理] 获取评分配置")
async def proxy_get_scoring_config():
    """
    转发请求到分数的获取配置接口
    """
    target_url = settings.SCORE_SERVER_CONFIG_URL
    logger.info(f"正在代理 GET 请求到: {target_url}")

    async with httpx.AsyncClient() as client:
        try:
            # 发送请求给项目1
            resp = await client.get(target_url, timeout=10.0)

            # 如果项目1返回错误状态码，抛出对应的 HTTPException
            if resp.status_code != 200:
                logger.error(f"项目1返回错误: {resp.status_code} - {resp.text}")
                raise HTTPException(
                    status_code=resp.status_code,
                    detail=resp.json().get("detail", "上游服务错误")
                )

            # 返回项目1的数据
            return resp.json()

        except httpx.RequestError as exc:
            logger.error(f"连接项目1失败: {exc}")
            raise HTTPException(
                status_code=status.HTTP_503_SERVICE_UNAVAILABLE,
                detail=f"无法连接到评分服务 (Project 1): {exc}"
            )


@router.put("/scoring_config", summary="[代理] 更新评分配置")
async def proxy_update_scoring_config(config_data: dict = Body(...)):
    """
    转发请求到分数的更新配置接口
    """
    target_url = settings.SCORE_SERVER_CONFIG_URL
    logger.info(f"正在代理 PUT 请求到: {target_url}")

    async with httpx.AsyncClient() as client:
        try:
            # 将前端传来的 json 原封不动转发给项目1
            resp = await client.put(target_url, json=config_data, timeout=10.0)

            # 处理项目1的响应
            if resp.status_code != 200:
                # 可能是 400 校验错误，或者是 500 内部错误
                error_detail = "上游服务错误"
                try:
                    error_detail = resp.json().get("detail", error_detail)
                except:
                    pass

                logger.warning(f"项目1拒绝更新: {resp.status_code} - {error_detail}")
                raise HTTPException(
                    status_code=resp.status_code,
                    detail=error_detail
                )

            return JSONResponse(
                status_code=resp.status_code,
                content=resp.json()
            )

        except httpx.RequestError as exc:
            logger.error(f"连接项目1失败: {exc}")
            raise HTTPException(
                status_code=status.HTTP_503_SERVICE_UNAVAILABLE,
                detail=f"无法连接到评分服务 (Project 1): {exc}"
            )