import '../.wxt/types/imports.d.ts';
import { browser } from 'wxt/browser';
import { MessageAction, onMessage, sendMessage } from '@/utils/messages';
import { createAllContextMenus, parseContextMenuClick } from '@/utils/contextMenu';
import { saveContextMenuData } from '@/utils/useContextMenuData';

export default defineBackground(() => {
  // 1. 扩展初次安装或更新时，注册右键上下文菜单
  browser.runtime.onInstalled.addListener(() => {
    createAllContextMenus();
  });

  // 2. 右键点击路由
  browser.contextMenus.onClicked.addListener(async (info, _tab) => {
    const result = parseContextMenuClick(info.menuItemId as string, info);

    if (!result.success || !result.data) {
      if (result.error) {
        console.warn('[Context Menu Warning]', result.error);
      }
      return;
    }

    const { featureKey, payload } = result.data;

    try {
      const sidePanelState = await browser.storage.local.get('sidePanelOpen');
      const isSidePanelOpen = sidePanelState.sidePanelOpen === true;

      if (isSidePanelOpen) {
        await sendMessage(MessageAction.CONTEXT_MENU_CLICKED, { featureKey, payload });
        return;
      }
    } catch (err) {
      console.debug('[Context Menu] Side panel pipeline is not available:', err);
    }

    await saveContextMenuData({ featureKey, payload });

    try {
      await browser.action.openPopup();
    } catch (err) {
      console.warn(
        '[Context Menu] 自动打开 popup 失败，请手动点击扩展图标，暂存数据已安全保留:',
        err,
      );
    }
  });

  // 监听扩展图标点击事件，安全激活侧边栏
  browser.action.onClicked.addListener(async (tab) => {
    if (tab.id) {
      try {
        await browser.sidePanel.open({ tabId: tab.id });
      } catch (err) {
        console.error('Failed to open side panel via extension action clicked:', err);
      }
    }
  });

  // 3. 异步刷新请求监听（统一使用 alarms API，避免 MV3 Service Worker 被销毁导致任务丢失）
  onMessage(MessageAction.RELOAD_TAB, async (message) => {
    const { tabId, delay = 0 } = message.data;

    const executeReload = () => {
      browser.tabs.reload(tabId).catch((err) => {
        console.error('Failed to execute tab reload operation:', err);
      });
    };

    if (delay <= 0) {
      executeReload();
      return { success: true };
    }

    const alarmName = `reload-tab-${tabId}-${Date.now()}`;

    // 创建一次性 Alarm，由浏览器内核保障触发（不受 Service Worker 生命周期影响）
    await browser.alarms.create(alarmName, { when: Date.now() + delay });

    // 兜底清理：若 alarm 因异常未触发，delay 后 5 秒强制移除监听器并清理 alarm
    const cleanupTimeout = setTimeout(() => {
      browser.alarms.onAlarm.removeListener(alarmListener);
      browser.alarms.clear(alarmName).catch(() => {});
    }, delay + 5000);

    const alarmListener = (alarm: { name: string }) => {
      if (alarm.name !== alarmName) return;

      clearTimeout(cleanupTimeout);
      executeReload();
      browser.alarms.onAlarm.removeListener(alarmListener);
      browser.alarms.clear(alarmName).catch(() => {});
    };

    browser.alarms.onAlarm.addListener(alarmListener);

    return { success: true };
  });
});