import sys

from app.helper.redis import RedisHelper, AsyncRedisHelper

# SitesHelper涉及资源包拉取，提前引入并容错提示
try:
    from app.helper.sites import SitesHelper  # noqa
except ImportError as e:
    SitesHelper = None
    error_message = f"错误: {str(e)}\n站点认证及索引相关资源导入失败，请尝试重建容器或手动拉取资源"
    print(error_message, file=sys.stderr)
    sys.exit(1)

from app.utils.system import SystemUtils
from app.log import logger
from app.core.config import settings
from app.core.module import ModuleManager
from app.core.event import EventManager
from app.helper.thread import ThreadHelper
from app.helper.display import DisplayHelper
from app.helper.doh import DohHelper
from app.helper.resource import ResourceHelper
from app.helper.message import MessageHelper, stop_message
from app.helper.subscribe import SubscribeHelper
from app.db import close_database
from app.db.systemconfig_oper import SystemConfigOper
from app.command import CommandChain
from app.schemas import Notification, NotificationType
from app.schemas.types import SystemConfigKey
from app.startup.agent_initializer import init_agent, stop_agent


def start_frontend():
    """
    启动前端服务
    """
    # 仅Windows可执行文件支持内嵌nginx
    if not SystemUtils.is_frozen() \
            or not SystemUtils.is_windows():
        return
    # 临时Nginx目录
    nginx_path = settings.ROOT_PATH / 'nginx'
    if not nginx_path.exists():
        return
    # 配置目录下的Nginx目录
    run_nginx_dir = settings.CONFIG_PATH.with_name('nginx')
    if not run_nginx_dir.exists():
        # 移动到配置目录
        SystemUtils.move(nginx_path, run_nginx_dir)
    # 启动Nginx
    import subprocess
    subprocess.Popen("start nginx.exe",
                     cwd=run_nginx_dir,
                     shell=True)


def stop_frontend():
    """
    停止前端服务
    """
    if not SystemUtils.is_frozen() \
            or not SystemUtils.is_windows():
        return
    import subprocess
    subprocess.Popen(f"taskkill /f /im nginx.exe", shell=True)


def clear_temp():
    """
    清理临时文件和图片缓存
    """
    # 清理临时目录中3天前的文件
    SystemUtils.clear(settings.TEMP_PATH, days=settings.TEMP_FILE_DAYS)
    # 清理图片缓存目录中7天前的文件
    SystemUtils.clear(settings.CACHE_PATH / "images", days=settings.GLOBAL_IMAGE_CACHE_DAYS)


def user_auth():
    """
    用户认证检查
    """
    sites_helper = SitesHelper()
    if sites_helper.auth_level >= 2:
        return
    auth_conf = SystemConfigOper().get(SystemConfigKey.UserSiteAuthParams)
    status, msg = sites_helper.check_user(**auth_conf) if auth_conf else sites_helper.check_user()
    if status:
        logger.info(f"{msg} 用户认证成功")
    else:
        logger.info(f"用户认证失败，{msg}")


def check_auth():
    """
    检查认证状态
    """
    if SitesHelper().auth_level < 2:
        err_msg = "用户认证失败，站点相关功能将无法使用！"
        MessageHelper().put(f"注意：{err_msg}", title="用户认证", role="system")
        CommandChain().post_message(
            Notification(
                mtype=NotificationType.Manual,
                title="MoviePilot用户认证",
                text=err_msg,
                link=settings.MP_DOMAIN('#/site')
            )
        )


async def stop_modules():
    """
    服务关闭
    """
    # 停止AI智能体
    await stop_agent()
    # 停止模块
    ModuleManager().stop()
    # 停止事件消费
    EventManager().stop()
    # 停止虚拟显示
    DisplayHelper().stop()
    # 停止线程池
    ThreadHelper().shutdown()
    # 停止消息服务
    stop_message()
    # 关闭Redis缓存连接
    RedisHelper().close()
    await AsyncRedisHelper().close()
    # 停止数据库连接
    await close_database()
    # 停止前端服务
    stop_frontend()
    # 清理临时文件
    clear_temp()


def init_modules():
    """
    启动模块
    """
    # 虚拟显示
    DisplayHelper()
    # DoH
    DohHelper()
    # 站点管理
    SitesHelper()
    # 资源包检测
    ResourceHelper()
    # 用户认证
    user_auth()
    # 加载模块
    ModuleManager()
    # 启动事件消费
    EventManager().start()
    # 初始化订阅分享
    SubscribeHelper()
    # 初始化AI智能体
    init_agent()
    # 启动前端服务
    start_frontend()
    # 检查认证状态
    check_auth()