{{- $defaultCDN := "https://cdn.jsdelivr.net" -}}
{{- $cdn := slice ( .Site.Params.cdnCustomized | default $defaultCDN ) -}}
{{- $LunrMinJs := slice ("/npm/lunr@2.3.9/lunr.min.js") -}}
{{- $tinysegJs := slice ("/npm/lunr-languages@1.4.0/tinyseg.js") -}}
{{- $lunrStemmerSupportJs := slice ("/npm/lunr-languages@1.4.0/min/lunr.stemmer.support.min.js") -}}
{{- $lunrLanguagesJs := slice ("/npm/lunr-languages@1.4.0/min/lunr.%s.min.js") -}}
{{- $scripts := slice (union $cdn $LunrMinJs) -}}
{{- if ne .Site.Language.Lang "en" -}}
    {{- $supported := slice "ar" "da" "de" "du" "es" "fi" "fr" "hu" "it" "ja" "nl" "no" "pt" "ro" "ru" "sv" "tr" "vi" -}}
    {{- if in $supported .Site.Language.Lang -}}
        {{- if eq .Site.Language.Lang "ja" -}}
            {{- $scripts = union $scripts (slice (union $cdn $tinysegJs)) -}}
        {{- end -}}
        {{- $scripts = union $scripts (slice (union $cdn $lunrStemmerSupportJs)) -}}
        {{- $scripts = union $scripts (slice (printf union $cdn $lunrLanguagesJs .Site.Language.Lang)) -}}
    {{- else -}}
        {{- warnf "The site language %q isn't supported by lunr, the search results might be suboptimal. Supported languages are: %q" .Site.Language.Lang $supported -}}
    {{- end -}}
{{- end -}}

{{- $scripts = union $scripts (slice "js/lunr-search.js") -}}
{{- return $scripts -}}