import logging
from logging.handlers import TimedRotatingFileHandler
import re
import pytz
from datetime import datetime
def get_logger(logger_name, log_file, when='midnight', backup_count=7):
    """
    配置日志记录器并返回
    :param logger_name: 日志记录器名称
    :param log_file: 日志文件路径
    :param when: 日志滚动的时间间隔（默认：'midnight'，即每天午夜滚动）
    :param backup_count: 保留的日志文件备份数量
    :return: 配置好的日志记录器
    """
    logger = logging.getLogger(logger_name)
    logger.setLevel(logging.INFO)

    # 创建文件处理器，用于写入日志文件
    handler = TimedRotatingFileHandler(log_file, when=when, backupCount=backup_count)
    handler.setLevel(logging.INFO)

    # 创建日志格式化器
    formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
    handler.setFormatter(formatter)

    # 将处理器添加到记录器中
    if not logger.hasHandlers():
        logger.addHandler(handler)

    return logger




def get_client_ip(request):
    """获取客户端真实 IP 地址"""
    x_forwarded_for = request.META.get('HTTP_X_FORWARDED_FOR')
    if x_forwarded_for:
        ip_list = x_forwarded_for.split(',')
        ip = ip_list[0]
    else:
        ip = request.META.get('REMOTE_ADDR', '')
    return ip

def get_browser_language(request):
    """获取浏览器语言"""
    return request.META.get('HTTP_ACCEPT_LANGUAGE', '')

def get_referrer(request):
    """获取来源 URL"""
    return request.META.get('HTTP_REFERER', '直接访问')

def get_user_agent(request):
    """获取用户代理字符串"""
    return request.META.get('HTTP_USER_AGENT', '')

def get_device_type(user_agent):
    """根据用户代理判断设备类型（手机或电脑）"""
    mobile_patterns = ['Mobile', 'Android', 'iPhone', 'iPad', 'Windows Phone']
    for pattern in mobile_patterns:
        if re.search(pattern, user_agent, re.IGNORECASE):
            return 'Mobile'
    return 'Desktop'

def get_beijing_time(utc_time):

    return datetime.now()