{{ if .Params.image }}
  {{ .Scratch.Set "image" .Params.image }}
  {{ if hasPrefix .Params.image "resource:" }}
    {{ $resource := .Resources.GetMatch (replace .Params.image "resource:" "") }}
    {{ .Scratch.Set "image" ($resource.Resize "800x").Permalink }}
  {{ else if hasPrefix .Params.image "unsplash:" }}
    {{ $unsplash_id := replace .Params.image "unsplash:" "" }}
    {{ $query := querify "client_id" (getenv "UNSPLASH_ACCESS_KEY") }}
    {{ $unsplash_data := (getJSON "https://api.unsplash.com/photos/" $unsplash_id "?" $query )}}
    {{ .Scratch.Set "image" $unsplash_data.urls.regular }}
  {{ end }}
{{ end }}

{{ $image := .Scratch.Get "image" }}

{{/* Twitter-specific tags */}}
<meta name="twitter:dnt" content="on" />
<meta name="twitter:card" content="summary_large_image" />
<meta name="twitter:site" content="@{{ .Site.Data.social.accounts.twitter.username }}" />
<meta name="twitter:title" content="{{ .Title | htmlUnescape }}" />
<meta name="twitter:description" content="{{ .Summary | plainify | chomp | htmlUnescape }}{{ if .Truncated }}...{{ end }}" />
<meta name="twitter:creator" content="{{ .Site.Data.social.accounts.twitter.username }}" />

{{ if gt .ReadingTime 2 }}
  <meta name="twitter:label1" content="Reading time" />
  <meta name="twitter:data1" content="{{ .ReadingTime }} min read" />
{{ end }}

{{ if $image }}
  <meta name="twitter:image" content="{{ absURL $image }}" />
  <meta name="twitter:image:alt" content="{{ .Title | htmlUnescape }}" />
{{ end }}

{{/* OpenGraph tags*/}}
<meta property="og:title" content="{{ .Title | htmlUnescape }}" />
<meta property="og:type" content="{{ .Kind }}" />
<meta property="og:url" content="{{ .Permalink }}" />
<meta property="og:description" content="{{ .Summary | plainify | chomp | htmlUnescape }}{{ if .Truncated }}...{{ end }}" />
<meta property="og:site_name" content="{{ title .Site.Title | htmlUnescape }}" />
<meta property="og:locale" content="{{ .Site.Language.Lang }}" />

{{ if $image }}
  <meta property="og:image" content="{{ absURL $image }}" />
{{ end }}


<meta itemprop="name" content="{{ .Title | htmlUnescape }}" />
<meta itemprop="description" content="{{ .Summary | plainify | chomp | htmlUnescape }}{{ if .Truncated }}...{{ end }}" />

{{ if $image }}
  <meta itemprop="image" content="{{ absURL $image }}" />
{{ end }}

<meta name="article:author" content="{{ title .Site.Params.author }}" />
<meta name="article:modified_time" content="{{ .Lastmod.Format .Site.Params.iso8601 }}" />
<meta name="article:published_time" content="{{ .Date.Format .Site.Params.iso8601 }}" />
<meta name="article:section" content="{{ .Type }}" />
<meta name="description" content="{{ .Summary | plainify | chomp | htmlUnescape }}{{ if .Truncated }}...{{ end }}" />
<meta name="author" content="{{ title .Site.Params.author }}" />
<meta name="canonical" content="{{ .Permalink }}" />

{{ if .Params.tags }}
  {{ range (.Params.tags | sort) }}
    <meta property="article:tag" content="{{ . }}" />
  {{ end }}
{{ end }}

{{ range .AlternativeOutputFormats }}
  <link rel="{{ .Rel }}" type="{{ .MediaType.Type }}" href="{{ .Permalink }}">
{{ end }}