from django.apps import AppConfig
import logging
from .management.commands.vdes_monitor import VDESSocketMonitor

class SystemConfig(AppConfig):
    default_auto_field = 'django.db.models.BigAutoField'
    name = 'system'

    def ready(self):
        # 确保只在主进程中启动（避免在开发服务器中启动两次）
        if not self._is_runserver_with_reload():
            self.start_vdes_monitor()
        from .models import MessageFlag
        try:
            # 确保表创建完成后检查是否存在记录
            if not MessageFlag.objects.exists():
                MessageFlag.objects.create(has_new_message=False)
                print("初始化 MessageFlag: 已创建默认记录")
        except:
            print("初始化 MessageFlag 失败")
    
    def _is_runserver_with_reload(self):
        """检查是否在开发服务器的重载进程中"""
        import sys
        return 'runserver' in sys.argv and '--noreload' not in sys.argv
    
    def start_vdes_monitor(self):
        """启动 VDES 监控服务"""
        monitor = VDESSocketMonitor()
        monitor.start()
        logger = logging.getLogger(__name__)
        logger.info("VDES 监控服务已启动")