From f9ba6222e4278479a6eb221d644abdeca9dc4583 Mon Sep 17 00:00:00 2001
From: "C. Lente" <7017340+clente@users.noreply.github.com>
Date: Sat, 4 Mar 2023 15:08:11 -0300
Subject: Dynamically generated social cards

---
 layouts/partials/seo_tags.html    |  16 +++---
 layouts/partials/social_card.html | 106 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 116 insertions(+), 6 deletions(-)
 create mode 100644 layouts/partials/social_card.html

(limited to 'layouts')

diff --git a/layouts/partials/seo_tags.html b/layouts/partials/seo_tags.html
index 0b01f8b..84ab39e 100644
--- a/layouts/partials/seo_tags.html
+++ b/layouts/partials/seo_tags.html
@@ -3,11 +3,15 @@
 <meta name="description" content="{{ with .Description }}{{ . }}{{ else }}{{if .IsPage}}{{ .Summary }}{{ else }}{{ with .Site.Params.description }}{{ . }}{{ end }}{{ end }}{{ end }}" />
 <meta name="keywords" content="{{ if .IsPage}}{{ range $index, $tag := .Params.tags }}{{ $tag }},{{ end }}{{ else }}{{ range $plural, $terms := .Site.Taxonomies }}{{ range $term, $val := $terms }}{{ printf "%s," $term }}{{ end }}{{ end }}{{ end }}" />
 
-<!-- Open Graph / Facebook -->
-{{ template "_internal/opengraph.html" . }}
+{{ if (default false .Site.Params.generateSocialCard) }}
+  {{ partial "social_card.html" . }}
+{{ else }}
+  <!-- Open Graph / Facebook -->
+  {{ template "_internal/opengraph.html" . }}
 
-<!-- Twitter -->
-{{ template "_internal/twitter_cards.html" . }}
+  <!-- Twitter -->
+  {{ template "_internal/twitter_cards.html" . }}
 
-<!-- Microdata -->
-{{ template "_internal/schema.html" . }}
+  <!-- Microdata -->
+  {{ template "_internal/schema.html" . }}
+{{ end }}
diff --git a/layouts/partials/social_card.html b/layouts/partials/social_card.html
new file mode 100644
index 0000000..77bc251
--- /dev/null
+++ b/layouts/partials/social_card.html
@@ -0,0 +1,106 @@
+<!-- Dynamic social card generation -->
+{{ $font := resources.GetRemote "https://github.com/google/fonts/raw/main/ofl/firamono/FiraMono-Bold.ttf" }}
+{{ $fg := resources.Get "/images/social_card_fg.png"}}
+{{ $bg := resources.Get "/images/social_card_bg.png"}}
+
+{{ $fg = $fg.Filter (images.Text .Title (dict
+    "font" $font
+    "color" "#f8f8f2"
+    "size" 130
+    "linespacing" 20
+    "x" 0
+    "y" 0
+)) }}
+
+{{ $date := .Date.Format (default "2006-01-02" .Site.Params.dateFormat) }}
+{{ $byline := (printf "%s | %s" ($.Param "author") $date) }}
+
+{{ $fg = $fg.Filter (images.Text $byline (dict
+    "font" $font
+    "color" "#c9d1d9"
+    "size" 60
+    "linespacing" 30
+    "x" 0
+    "y" 425
+)) }}
+
+{{ $card := $bg.Filter (images.Overlay $fg 112 140 ) }}
+{{ $card := $card.Resize "900x webp q100" }}
+
+<!-- Open Graph / Facebook -->
+<!-- Source: https://raw.githubusercontent.com/gohugoio/hugo/master/tpl/tplimpl/embedded/templates/opengraph.html -->
+<meta property="og:title" content="{{ .Title }}" />
+<meta property="og:description" content="{{ with .Description }}{{ . }}{{ else }}{{if .IsPage}}{{ .Summary }}{{ else }}{{ with .Site.Params.description }}{{ . }}{{ end }}{{ end }}{{ end }}" />
+<meta property="og:type" content="{{ if .IsPage }}article{{ else }}website{{ end }}" />
+<meta property="og:url" content="{{ .Permalink }}" />
+
+{{- with .Params.images -}}
+{{- range first 6 . }}<meta property="og:image" content="{{ . | absURL }}" />{{ end -}}
+{{- else -}}
+<meta property="og:image" content="{{ $card.Permalink | absURL }}"/>
+{{- end -}}
+
+{{- if .IsPage }}
+{{- $iso8601 := "2006-01-02T15:04:05-07:00" -}}
+<meta property="article:section" content="{{ .Section }}" />
+{{ with .PublishDate }}<meta property="article:published_time" {{ .Format $iso8601 | printf "content=%q" | safeHTMLAttr }} />{{ end }}
+{{ with .Lastmod }}<meta property="article:modified_time" {{ .Format $iso8601 | printf "content=%q" | safeHTMLAttr }} />{{ end }}
+{{- end -}}
+
+{{- with .Params.audio }}<meta property="og:audio" content="{{ . }}" />{{ end }}
+{{- with .Params.locale }}<meta property="og:locale" content="{{ . }}" />{{ end }}
+{{- with .Site.Params.title }}<meta property="og:site_name" content="{{ . }}" />{{ end }}
+{{- with .Params.videos }}{{- range . }}
+<meta property="og:video" content="{{ . | absURL }}" />
+{{ end }}{{ end }}
+
+{{- /* If it is part of a series, link to related articles */}}
+{{- $permalink := .Permalink }}
+{{- $siteSeries := .Site.Taxonomies.series }}
+{{- if $siteSeries }}
+{{ with .Params.series }}{{- range $name := . }}
+  {{- $series := index $siteSeries ($name | urlize) }}
+  {{- range $page := first 6 $series.Pages }}
+    {{- if ne $page.Permalink $permalink }}<meta property="og:see_also" content="{{ $page.Permalink }}" />{{ end }}
+  {{- end }}
+{{ end }}{{ end }}
+{{- end }}
+
+{{- /* Facebook Page Admin ID for Domain Insights */}}
+{{- with .Site.Social.facebook_admin }}<meta property="fb:admins" content="{{ . }}" />{{ end }}
+
+<!-- Twitter -->
+<!-- Source: https://github.com/gohugoio/hugo/blob/master/tpl/tplimpl/embedded/templates/twitter_cards.html -->
+{{- with .Params.images -}}
+<meta name="twitter:card" content="summary_large_image"/>
+<meta name="twitter:image" content="{{ index . 0 | absURL }}"/>
+{{ else -}}
+<meta name="twitter:card" content="summary_large_image"/>
+<meta name="twitter:image" content="{{ $card.Permalink | absURL }}"/>
+{{- end }}
+<meta name="twitter:title" content="{{ .Title }}"/>
+<meta name="twitter:description" content="{{ with .Description }}{{ . }}{{ else }}{{if .IsPage}}{{ .Summary }}{{ else }}{{ with .Site.Params.description }}{{ . }}{{ end }}{{ end }}{{ end -}}"/>
+{{ with .Site.Social.twitter -}}
+<meta name="twitter:site" content="@{{ . }}"/>
+{{ end -}}
+
+<!-- Microdata -->
+<!-- Source: https://raw.githubusercontent.com/gohugoio/hugo/master/tpl/tplimpl/embedded/templates/schema.html -->
+<meta itemprop="name" content="{{ .Title }}">
+<meta itemprop="description" content="{{ with .Description }}{{ . }}{{ else }}{{if .IsPage}}{{ .Summary }}{{ else }}{{ with .Site.Params.description }}{{ . }}{{ end }}{{ end }}{{ end }}">
+
+{{- if .IsPage -}}
+{{- $iso8601 := "2006-01-02T15:04:05-07:00" -}}
+{{ with .PublishDate }}<meta itemprop="datePublished" {{ .Format $iso8601 | printf "content=%q" | safeHTMLAttr }} />{{ end}}
+{{ with .Lastmod }}<meta itemprop="dateModified" {{ .Format $iso8601 | printf "content=%q" | safeHTMLAttr }} />{{ end}}
+<meta itemprop="wordCount" content="{{ .WordCount }}">
+
+{{- with .Params.images -}}
+{{- range first 6 . -}}<meta itemprop="image" content="{{ . | absURL }}">{{ end -}}
+{{- else -}}
+<meta itemprop="image" content="{{ $card.Permalink | absURL }}"/>
+{{- end -}}
+
+<!-- Output all taxonomies as schema.org keywords -->
+<meta itemprop="keywords" content="{{ if .IsPage}}{{ range $index, $tag := .Params.tags }}{{ $tag }},{{ end }}{{ else }}{{ range $plural, $terms := .Site.Taxonomies }}{{ range $term, $val := $terms }}{{ printf "%s," $term }}{{ end }}{{ end }}{{ end }}" />
+{{- end -}}
-- 
cgit v1.2.3