import zipfile
import tempfile
import shutil
import random
import os
import jwt
import traceback
from django.http import HttpResponse,JsonResponse
SECRET_KEY='#tdfnrcn1s610h4*csa2-p+=lfqz-ol+=uo$+n2sa'

#构建封装用户信息字典
#2025-5-27
#Author Feng
def _build_user_info(user):

    return {
        "user_name": user.user_name,
        "coin": user.coin,
        "isRegUser": bool(getattr(user, 'isRegUser', 0)),
        "mobile": user.mobile,
        "email": user.email,
        "level": user.level,
        "uuid": user.uuid,
        "registration_time": user.registration_time.isoformat() if hasattr(user.registration_time, 'isoformat') else str(user.registration_time)

    }

#生成指定范围内的随机数
#2025-5-27
#Author Feng
def generate_random_number(start, end):
    return random.randint(start, end)



# 统一的错误响应处理
def handle_error(error_message):
    # 打印错误堆栈信息到日志或控制台
    traceback.print_exc()
    return JsonResponse({"status": "error", "message": error_message}, status=500)

def model_to_dict_without_id(model_instance):
    """将 Django 模型实例转换为字典，并移除 'id' 字段"""
    if model_instance:
        model_dict = model_instance.__dict__.copy()
        model_dict.pop("id", None)  # 删除 id 字段
        model_dict.pop("_state", None)  # 删除 Django 内部字段
        return model_dict
    return {}


# # 生成access_token
# def generate_access_token(user_id,expiration_time):
#
#     payload = {
#         'user_id': user_id,
#         'exp': expiration_time
#     }
#     return jwt.encode(payload, SECRET_KEY, algorithm='HS256')
#
#
# # 生成login_token
# def generate_login_token(user_id,expiration_time):
#     payload = {
#         'user_id': user_id,
#         'exp': expiration_time
#     }
#
#     return jwt.encode(payload, SECRET_KEY, algorithm='HS256')


#解压zip文件中的wav音频到指定目录
# 2025/4/01
# author Feng
def extract_wav_from_zip(zip_file, target_directory):
    temp_dir = tempfile.mkdtemp()

    try:
        # 解压zip到临时目录
        with zipfile.ZipFile(zip_file, 'r') as zip_ref:
            zip_ref.extractall(temp_dir)

        # Find wav file in the extracted directory
        wav_files = []
        for root, _, files in os.walk(temp_dir):
            for file in files:
                if file.lower().endswith('.wav'):
                    wav_files.append(os.path.join(root, file))

        if not wav_files:
            return None

        # Use the first wav file found
        wav_file_path = wav_files[0]

        # Copy to target directory with a specific name
        target_path = os.path.join(target_directory, 'voice.wav')
        shutil.copy2(wav_file_path, target_path)

        return target_path

    finally:
        # Clean up temp directory
        shutil.rmtree(temp_dir)


#验证访问令牌的有效性
def validate_access_token(access_token):
    # 验证访问令牌的有效性
    try:
        decoded_token = jwt.decode(access_token, SECRET_KEY, algorithms=['HS256'])
        return decoded_token
    except jwt.ExpiredSignatureError:
        return JsonResponse({
            "status": "error",
            "code": 601,
            "message": "access_token expired, please refresh"
        })
    except jwt.InvalidTokenError:
        return JsonResponse({
            "status": "error",
            "code": 400,
            "message": "invalid access_token"
        })