layouts/partials/announcement.html

{{ $dateRegExp := "^[0-9]{4}-1[0-2]|0[1-9]-(?:3[01]|0[1-9]|[12][0-9])T(?:2[0-3]|[01][0-9]):(?:[0-5][0-9]):(?:60|[0-5][0-9])$" }}
{{ $announcementShown := false }}

{{ if eq .Site.LanguagePrefix "/en" }}
  {{ $currentAnnouncements := $.Site.Data.announcements.en }}

  {{ range $currentAnnouncements }}
    {{ range .announcements }}
      {{ if or ( eq .endTime nil ) ( eq .message nil ) }}
      {{ errorf "Invalid announcement: %#v" . }}
      {{ end }}
      {{ if and (ne .startTime nil ) (lt ( len ( findRE $dateRegExp .startTime ) ) 1 ) }}
      {{ errorf "Invalid announcement start time: %#v" .startTime }}
      {{ end }}
      {{ if lt ( len ( findRE $dateRegExp .endTime ) ) 1 }}
      {{ errorf "Invalid announcement end time: %#v" .endTime }}
      {{ end }}
      {{ if or (eq .startTime nil ) (lt ( time .startTime ) now ) }}
      {{- if or (eq .endTime nil ) (gt ( time .endTime ) now ) -}}
      {{- if not $announcementShown -}}
      {{- $announcementShown = true -}}
      <div lang="en" id="announcement" style="background-color: #3371e3; color: #fff; {{ .style | safeCSS }}">
        <aside>
          <div class="announcement-main" data-nosnippet>
            {{ if .title }}
            <h4>
              {{ .title | markdownify }}
            </h4>
            {{ end }}
            <p>{{ .message | markdownify }}</p>
          </div>
        </aside>
      </div>
      {{- end -}}
      {{- end -}}
      {{- end -}}
    {{ end }}
  {{ end }}

{{ else }}
  {{ $currentAnnouncements := $.Site.Data.announcements.zh }}

  {{ range $currentAnnouncements }}
    {{ range .announcements }}
    {{ if or ( eq .endTime nil ) ( eq .message nil ) }}
    {{ errorf "Invalid announcement: %#v" . }}
    {{ end }}
    {{ if and (ne .startTime nil ) (lt ( len ( findRE $dateRegExp .startTime ) ) 1 ) }}
    {{ errorf "Invalid announcement start time: %#v" .startTime }}
    {{ end }}
    {{ if lt ( len ( findRE $dateRegExp .endTime ) ) 1 }}
    {{ errorf "Invalid announcement end time: %#v" .endTime }}
    {{ end }}
    {{ if or (eq .startTime nil ) (lt ( time .startTime ) now ) }}
    {{- if or (eq .endTime nil ) (gt ( time .endTime ) now ) -}}
    {{- if not $announcementShown -}}
    {{- $announcementShown = true -}}
    <div lang="zh-cn" id="announcement" style="background-color: #3371e3; color: #fff; {{ .style | safeCSS }}">
      <aside>
        <div class="announcement-main" data-nosnippet>
          {{ if .title }}
          <h4>
            {{ .title | markdownify }}
          </h4>
          {{ end }}
          <p>{{ .message | markdownify }}</p>
        </div>
      </aside>
    </div>
    {{- end -}}
    {{- end -}}
    {{- end -}}
    {{ end }}
  {{ end }}

{{ end }}