import json
import logging
import os

import requests

from Config import Config

# 配置日志
logging.basicConfig(level=logging.INFO, format='%(asctime)s - %(name)s - %(levelname)s - %(message)s')
logger = logging.getLogger('MjCommon')


class MjCommon:

    ak = Config.GPTNB_API_KEY
    BASE_URL = Config.GPTNB_BASE_URL

    @staticmethod
    def download_file(file_url, save_file_path):
        """从URL下载文件到指定路径

        Args:
            file_url (str): 文件URL
            save_file_path (str): 保存路径

        Raises:
            Exception: 下载过程中的异常
        """
        try:
            # 确保目录存在
            os.makedirs(os.path.dirname(save_file_path), exist_ok=True)

            # 下载文件
            logger.info(f"开始下载文件: {file_url}")
            response = requests.get(file_url, stream=True, timeout=30)
            response.raise_for_status()

            # 保存文件
            with open(save_file_path, 'wb') as f:
                for chunk in response.iter_content(chunk_size=8192):
                    f.write(chunk)

            file_size = os.path.getsize(save_file_path)
            logger.info(f"文件下载成功，保存路径: {save_file_path}, 文件大小: {file_size}字节")
        except Exception as e:
            logger.error(f"文件下载失败: {str(e)}")
            raise Exception(f"文件下载失败: {str(e)}")

    @staticmethod
    def query_task_status(task_id):
        """查询任务状态

        Args:
            task_id (str): 任务ID

        Returns:
            dict: 任务结果

        Raises:
            Exception: 异常信息
        """
        # 创建请求URL
        url = f"{MjCommon.BASE_URL}/mj/task/{task_id}/fetch"

        # 设置请求头
        headers = {
            "Authorization": f"Bearer {MjCommon.ak}"
        }

        try:
            logger.info(f"查询Midjourney任务状态: {task_id}")
            response = requests.get(url, headers=headers, timeout=30)

            # 检查响应状态
            if not response.ok:
                error_msg = f"Midjourney API请求失败，状态码: {response.status_code}"
                logger.error(error_msg)
                raise Exception(error_msg)

            # 解析响应
            response_body = response.text
            logger.info(f"查询Midjourney任务状态响应: {response_body}")

            return json.loads(response_body)
        except Exception as e:
            logger.error(f"查询任务状态失败: {str(e)}")
            raise Exception(f"查询任务状态失败: {str(e)}")


# 测试代码
if __name__ == "__main__":
    # 测试下载文件
    # try:
    #     test_url = "https://example.com/test.jpg"
    #     test_save_path = os.path.join(MjCommon.base_path, "test.jpg")
    #     MjCommon.download_file(test_url, test_save_path)
    # except Exception as e:
    #     print(f"测试下载失败: {e}")

    # 测试查询任务状态
    # try:
    #     test_task_id = "your_task_id_here"
    #     result = MjCommon.query_task_status(test_task_id)
    #     print(f"任务状态查询结果: {result}")
    # except Exception as e:
    #     print(f"测试查询任务状态失败: {e}")
    pass