// web-admin/src/utils/check-app-update.ts
import { startAppUpdateChecker } from './app-update'

/** 生产环境检查 dist/version.json，发现新 buildId 后强制刷新。 */
export function startAppUpdateCheck(): () => void {
  return startAppUpdateChecker({
    isProd: import.meta.env.PROD,
    localBuildId: __APP_BUILD_ID__,
    localVersion: __APP_VERSION__,
    baseUrl: import.meta.env.BASE_URL,
    now: () => Date.now(),
    fetchRemote: async (url) => {
      const res = await fetch(url, { cache: 'no-store' })
      if (!res.ok) throw new Error(String(res.status))
      return res.json()
    },
    onReload: () => {
      location.reload()
    },
    alertUpdate: async (message) => {
      await ElMessageBox.alert(message, '发现新版本', {
        confirmButtonText: '立即刷新',
        showClose: false,
        closeOnClickModal: false,
        closeOnPressEscape: false,
        showCancelButton: false,
        dangerouslyUseHTMLString: true
      })
    },
    setInterval: (fn, ms) => window.setInterval(fn, ms),
    clearInterval: (id) => window.clearInterval(id),
    subscribeVisible: (handler) => {
      const listener = () => {
        if (document.visibilityState === 'visible') handler()
      }
      document.addEventListener('visibilitychange', listener)
      return () => document.removeEventListener('visibilitychange', listener)
    }
  })
}