import requests
import os
import json
import re
import time
import sys
import logging

# 配置日志系统
logging.basicConfig(
    level=logging.INFO,
    format='%(asctime)s - %(message)s',
    handlers=[
        logging.StreamHandler(sys.stdout)
    ]
)
logger = logging.getLogger(__name__)

# 确保日志输出不缓冲
for handler in logging.getLogger().handlers:
    handler.flush = sys.stdout.flush

def get_firmware_list():
    """访问API获取固件列表"""
    url = 'https://app4.i4.cn/getFirmwareList.xhtml?model=iPhone+13+Pro+Max&fs=2&seltype=1&ios='
    try:
        response = requests.get(url, timeout=10)
        response.raise_for_status()  # 检查请求是否成功
        return response.json()
    except Exception as e:
        logger.error(f"获取固件列表失败: {e}")
        return None

def extract_versions_from_api(data):
    """从API返回的数据中提取版本号"""
    versions = []
    if data and data.get('success') and 'list' in data:
        for item in data['list']:
            if 'version' in item:
                # 提取主要版本号（如26.1，忽略beta等后缀）
                version = item['version']
                main_version_match = re.match(r'(\d+\.\d+)', version)
                if main_version_match:
                    main_version = main_version_match.group(1)
                    versions.append(main_version)
    return versions

def get_local_versions():
    """直接读取firmware_versions.txt文件中的版本号"""
    local_versions = []
    file_path = os.path.join(os.getcwd(), 'firmware_versions.txt')
    
    if not os.path.exists(file_path):
        logger.warning(f"版本文件不存在: {file_path}")
        return local_versions
    
    try:
        with open(file_path, 'r', encoding='utf-8') as f:
            for line in f:
                line = line.strip()
                if line:
                    # 提取行中的版本号格式
                    version_match = re.match(r'(\d+\.\d+)', line)
                    if version_match:
                        main_version = version_match.group(1)
                        local_versions.append(main_version)
                    else:
                        # 如果整行不是版本号格式，也添加到列表中
                        local_versions.append(line)
    except Exception as e:
        logger.error(f"读取版本文件失败: {e}")
    
    return local_versions

def send_wechat_message(message):
    """通过企业微信webhook发送消息"""
    # 从环境变量获取webhook_url，如果没有则使用默认值
    webhook_url = os.environ.get(
        'WECHAT_WEBHOOK_URL', 
        'https://qyapi.weixin.qq.com/cgi-bin/webhook/send?key=4226c76e-725b-4990-b926-05f16142e513'
    )
    headers = {'Content-Type': 'application/json'}
    
    # 企业微信机器人消息格式
    payload = {
        "msgtype": "text",
        "text": {
            "content": message
        }
    }
    
    try:
        response = requests.post(webhook_url, headers=headers, data=json.dumps(payload), timeout=10)
        response.raise_for_status()
        result = response.json()
        if result.get('errcode') != 0:
            logger.error(f"发送企业微信消息失败: {result.get('errmsg')}")
    except Exception as e:
        logger.error(f"发送企业微信消息失败: {e}")

def check_versions():
    """检查并比较版本号"""
    # 获取API返回的版本号
    api_data = get_firmware_list()
    if not api_data:
        return
    
    api_versions = extract_versions_from_api(api_data)
    api_versions_set = set(api_versions)
    
    # 获取本地txt文件中的版本号
    local_versions = get_local_versions()
    if not local_versions:
        # 如果没有本地版本，创建一个示例txt文件
        create_example_txt()
        return
    
    # 找出不在本地的版本号
    new_versions = []
    for api_version in api_versions_set:
        if api_version not in local_versions:
            new_versions.append(api_version)
    
    if new_versions:
        logger.info(f"发现新固件版本: {', '.join(new_versions)}")
        # 构建消息内容并发送到企业微信
        message = f"✅ 固件版本检查完成\n发现新的验证版本:\n" + "\n".join([f"  - {v}" for v in new_versions])
        send_wechat_message(message)
    else:
        logger.info("所有固件版本已是最新")

def create_example_txt():
    """创建示例txt文件"""
    example_path = os.path.join(os.getcwd(), 'firmware_versions.txt')
    try:
        with open(example_path, 'w', encoding='utf-8') as f:
            f.write("26.1\n")
        logger.info(f"已创建版本文件: {example_path}")
    except Exception as e:
        logger.error(f"创建版本文件失败: {e}")

def main():
    """主函数，支持定时执行"""
    # 从环境变量读取执行间隔，默认30分钟
    interval_env = os.environ.get('CHECK_INTERVAL_MINUTES')
    try:
        interval_minutes = int(interval_env) if interval_env else 30
    except ValueError:
        logger.warning(f"检查间隔参数无效，使用默认值30分钟")
        interval_minutes = 30
    
    interval_seconds = interval_minutes * 60
    logger.info(f"固件版本检查服务启动，间隔: {interval_minutes}分钟，当前时间: {time.strftime('%Y-%m-%d %H:%M:%S')}")
    
    # 首次立即执行一次
    check_versions()
    
    # 然后定时执行
    try:
        while True:
            logger.info(f"等待下次检查，{interval_minutes}分钟后...")
            time.sleep(interval_seconds)
            check_versions()
    except KeyboardInterrupt:
        logger.info("服务已停止")
    except Exception as e:
        logger.error(f"服务运行出错: {e}")
        sys.exit(1)

if __name__ == "__main__":
    main()