from fastapi import APIRouter, File, UploadFile, Depends, HTTPException
from fastapi.responses import FileResponse, JSONResponse
from fastapi.concurrency import run_in_threadpool
from enum import Enum
from typing import Optional, Dict, Any
from ..core.config import settings
from app.services.score_service import ScoreService
import numpy as np
import cv2
import json
from app.core.logger import get_logger

logger = get_logger(__name__)

router = APIRouter()

score_names = settings.SCORE_TYPE
ScoreType = Enum("InferenceType", {name: name for name in score_names})


@router.post("/score_inference", summary="输入卡片类型(正反面, 缺陷类型), 是否为反射卡")
async def card_model_inference(
        score_type: ScoreType,
        is_reflect_card: bool = False,
        file: UploadFile = File(...)
):
    """
    接收一张卡片图片，使用指定类型的模型进行推理，并返回JSON结果。

    - **inference_type**: 要使用的模型类型（从下拉列表中选择）。
    - **file**: 要上传的图片文件。
    """
    service = ScoreService()
    image_bytes = await file.read()

    # 将字节数据转换为numpy数组
    np_arr = np.frombuffer(image_bytes, np.uint8)
    # 从numpy数组中解码图像
    img_bgr = cv2.imdecode(np_arr, cv2.IMREAD_COLOR)

    if img_bgr is None:
        raise ValueError("无法解码图像，请确保上传的是有效的图片格式 (JPG, PNG, etc.)")

    try:
        json_result = await run_in_threadpool(
            service.score_inference,
            score_type=score_type.value,
            is_reflect_card=is_reflect_card,
            img_bgr=img_bgr
        )
        return json_result
    except ValueError as e:
        raise HTTPException(status_code=400, detail=str(e))
    except Exception as e:
        raise HTTPException(status_code=500, detail=f"服务器内部错误: {e}")


@router.post("/score_recalculate", summary="输入卡片类型(正反面, 缺陷类型)",
             description="输入的json数据结构为 "
                         "{'result': {'center_result':..., 'defect_result':...}}")
async def score_recalculate(score_type: ScoreType, json_data: Dict[str, Any]):
    """
    接收分数推理后的结果, 然后重新根据json数据计算居中和缺陷等分数
    """
    service = ScoreService()
    try:
        json_result = await run_in_threadpool(
            service.recalculate_defect_score,
            score_type=score_type.value,
            json_data=json_data
        )
        return json_result
    except ValueError as e:
        raise HTTPException(status_code=400, detail=str(e))
    except Exception as e:
        raise HTTPException(status_code=500, detail=f"服务器内部错误: {e}")