"""
YOLO 隐患识别服务
"""
import httpx
from typing import Dict, Any
from utils.config import settings
from utils.logger import logger


class YoloService:
    def __init__(self):
        self.base_url = settings.yolo.base_url
    
    async def detect_hazards(self, image_url: str, scene_type: str = "") -> Dict[str, Any]:
        """检测图片中的隐患"""
        try:
            data = {
                "image_url": image_url,
                "scene_type": scene_type
            }
            
            async with httpx.AsyncClient(timeout=30.0) as client:
                response = await client.post(
                    f"{self.base_url}/detect",
                    json=data
                )
                response.raise_for_status()
                return response.json()
        except httpx.HTTPError as e:
            logger.warning(f"YOLO API 调用失败，返回模拟数据: {e}")
            # 返回模拟数据
            return {
                "hazards": [],
                "count": 0,
                "message": "YOLO服务暂时不可用，返回模拟数据"
            }
        except Exception as e:
            logger.error(f"YOLO 服务异常: {e}")
            return {
                "hazards": [],
                "count": 0,
                "message": "识别服务异常"
            }


# 全局实例
yolo_service = YoloService()