feat: maintenance notice (#1016)

web/app/components/header/maintenance-notice.tsx

@@ -0,0 +1,38 @@
+import { useState } from 'react'
+import { useContext } from 'use-context-selector'
+import I18n from '@/context/i18n'
+import { X } from '@/app/components/base/icons/src/vender/line/general'
+
+const NOTICE_I18N = {
+  title: {
+    'en': 'Important Notice',
+    'zh-Hans': '重要公告',
+  },
+  desc: {
+    'en': 'Our system will be unavailable from 19:00 to 24:00 UTC on August 28 for an upgrade. For questions, kindly contact our support team (support@dify.ai). We value your patience.',
+    'zh-Hans': '为了有效提升数据检索能力及稳定性，Dify 将于 2022 年 8 月 29 日 03:00 至 08:00 期间进行服务升级，届时 Dify 云端版及应用将无法访问。感谢您的耐心与支持。',
+  },
+}
+
+const MaintenanceNotice = () => {
+  const { locale } = useContext(I18n)
+  const [showNotice, setShowNotice] = useState(localStorage.getItem('hide-maintenance-notice') !== '1')
+
+  const handleCloseNotice = () => {
+    localStorage.setItem('hide-maintenance-notice', '1')
+    setShowNotice(false)
+  }
+
+  if (!showNotice)
+    return null
+
+  return (
+    <div className='shrink-0 flex items-center px-4 h-[38px] bg-[#FFFAEB] border-b border-[0.5px] border-b-[#FEF0C7] z-20'>
+      <div className='shrink-0 flex items-center mr-2 px-2 h-[22px] bg-[#F79009] text-white text-[11px] font-medium rounded-xl'>{NOTICE_I18N.title[locale]}</div>
+      <div className='grow text-xs font-medium text-gray-700'>{NOTICE_I18N.desc[locale]}</div>
+      <X className='shrink-0 w-4 h-4 text-gray-500 cursor-pointer' onClick={handleCloseNotice} />
+    </div>
+  )
+}
+
+export default MaintenanceNotice