{{- /*
  OpenGraph + Twitter Card meta - without it, a link shared on Mastodon,
  Bluesky, Slack or X renders as a bare URL instead of a title/description/
  image card. Takes a dict of `page` (the page being rendered), `desc`
  (baseof.html's own <meta name="description"> text) and `image`
  (page-image.html's own dict) so none of the three can drift apart by being
  computed twice.
*/ -}}
{{- $page := .page }}
{{- $desc := .desc }}
{{- $title := cond $page.IsHome site.Title $page.Title }}

{{- $image := .image.url }}
{{- $imageWidth := .image.width }}
{{- $imageHeight := .image.height }}

{{- /* og:locale wants en_US, not the "en-us" languages.*.locale in hugo.toml. */}}
{{- $localeParts := split site.Language.Locale "-" }}
{{- $locale := site.Language.Locale }}
{{- if eq (len $localeParts) 2 }}
  {{- $locale = printf "%s_%s" (index $localeParts 0) (upper (index $localeParts 1)) }}
{{- end }}

<meta property="og:title" content="{{ $title }}">
{{- with $desc }}
<meta property="og:description" content="{{ . }}">
{{- end }}
<meta property="og:type" content="{{ if $page.IsPage }}article{{ else }}website{{ end }}">
<meta property="og:url" content="{{ $page.Permalink }}">
<meta property="og:site_name" content="{{ site.Title }}">
<meta property="og:locale" content="{{ $locale }}">
{{- range $page.Translations }}
  {{- $tParts := split .Language.Locale "-" }}
  {{- $tLocale := .Language.Locale }}
  {{- if eq (len $tParts) 2 }}
    {{- $tLocale = printf "%s_%s" (index $tParts 0) (upper (index $tParts 1)) }}
  {{- end }}
<meta property="og:locale:alternate" content="{{ $tLocale }}">
{{- end }}
{{- with $image }}
<meta property="og:image" content="{{ . }}">
{{- with $imageWidth }}
<meta property="og:image:width" content="{{ . }}">
{{- end }}
{{- with $imageHeight }}
<meta property="og:image:height" content="{{ . }}">
{{- end }}
<meta property="og:image:alt" content="{{ $title }}">
<meta name="twitter:card" content="summary_large_image">
<meta name="twitter:image" content="{{ . }}">
{{- else }}
<meta name="twitter:card" content="summary">
{{- end }}
<meta name="twitter:title" content="{{ $title }}">
{{- with $desc }}
<meta name="twitter:description" content="{{ . }}">
{{- end }}
{{- with site.Params.profile }}
  {{- with (index (where .links "id" "linkTweetsTwitter") 0) }}
<meta name="twitter:creator" content="{{ .value }}">
  {{- end }}
{{- end }}
{{- if $page.IsPage }}
<meta property="article:published_time" content="{{ $page.Date.Format "2006-01-02T15:04:05Z07:00" }}">
  {{- if ne $page.Lastmod $page.Date }}
<meta property="article:modified_time" content="{{ $page.Lastmod.Format "2006-01-02T15:04:05Z07:00" }}">
  {{- end }}
{{- end }}