hugo-toha/layouts/partials/helpers/country-code.html

{{ $languageCode:= .Lang }}
{{/*  by default the language code and the country code are same  */}}
{{ $countryCode:= $languageCode }}

{{/* language code and country code are not same for some countries. we need to fix them.  */}}
{{ if eq $languageCode "en" }}
   {{ $countryCode = "gb" }}
{{ else if  eq $languageCode "bn" }}
    {{ $countryCode = "bd" }}
{{ else if  eq $languageCode "hi" }}
    {{ $countryCode = "in" }}
{{ end }}


{{/*  if the user specify a country code for a language via "params.flagOverwrites" field, then use it.  */}}
{{ range site.Params.flagOverwrites }}
    {{ if eq $languageCode .languageCode }}
        {{ $countryCode = .countryCode }}
    {{ end }}
{{ end }}

{{/*  return the country code  */}}
{{ return $countryCode }}