{{- $image := false -}}
{{- $isCoverImage := false -}}
{{- $alt := "" -}}
{{- with .Params.cover -}}
  {{- $cover := $.Resources.GetMatch . -}}
  {{- if and $cover (ne $cover.MediaType.SubType "svg") -}}
    {{- $image = $cover -}}
    {{- $isCoverImage = true -}}
    {{- $coverName := path.Base . | replaceRE "\\.[^.]+$" "" -}}
    {{- $coverDataFile := $.Resources.Get (printf "data/images/%s.yaml" $coverName) -}}
    {{- if not $coverDataFile -}}
      {{- $coverDataFile = $.Resources.Get (printf "data/%s.yaml" $coverName) -}}
    {{- end -}}
    {{- $coverData := dict -}}
    {{- if $coverDataFile -}}
      {{- $coverData = $coverDataFile.Content | transform.Unmarshal -}}
    {{- end -}}
    {{- $alt = index $coverData "description" | default "" -}}
    {{- if not $alt -}}
      {{- $alt = index $coverData "title" | default "" -}}
    {{- end -}}
  {{- end -}}
{{- end -}}
{{- if not $image -}}
  {{- $logoPath := site.Params.logo | default "logo-large.png" -}}
  {{- $logo := resources.GetMatch $logoPath -}}
  {{- if and $logo (ne $logo.MediaType.SubType "svg") -}}
    {{- $image = $logo -}}
  {{- end -}}
{{- end -}}
{{- if not $alt -}}
  {{- if and $image $isCoverImage -}}
    {{- if and .IsPage (not .IsHome) -}}
      {{- $alt = printf "Image de partage pour %s" .Title -}}
    {{- else -}}
      {{- $alt = printf "Logo du site %s" site.Title -}}
    {{- end -}}
  {{- else if $image -}}
    {{- $alt = printf "Logo du site %s" site.Title -}}
  {{- end -}}
{{- end -}}

{{- $data := dict -}}
{{- if $image -}}
  {{- $isInterestingLink := and $isCoverImage (strings.HasPrefix .RelPermalink "/interets/liens-interessants/") -}}
  {{- $shouldBlur := $isInterestingLink -}}
  {{- $cropAnchor := "Center" -}}
  {{- if $isInterestingLink -}}
    {{- $cropAnchor = "Top" -}}
  {{- end -}}
  {{- $alt = $alt | strings.TrimSpace | truncate 420 -}}
  {{- $data = dict
    "openGraph" (partial "head/social-image-variant.html" (dict
      "image" $image
      "width" 1200
      "height" 630
      "anchor" $cropAnchor
      "alt" $alt
      "blur" $shouldBlur
    ))
    "twitter" (partial "head/social-image-variant.html" (dict
      "image" $image
      "width" 1200
      "height" 1200
      "anchor" $cropAnchor
      "alt" $alt
      "blur" $shouldBlur
    ))
  -}}
{{- end -}}
{{- return $data -}}