{{!-- Begin General --}}
{{#if this.model.title}}
  <title>{{this.model.title}}</title>
{{/if}}

{{#if this.model.description}}
  <meta name="description" content={{this.model.description}}>
{{/if}}

<meta name="referrer" content="unsafe-url">

{{#if this.model.canonical}}
  <link rel="canonical" href={{this.model.canonical}}>
{{else if this.model.url}}
  <link rel="canonical" href={{this.model.url}}>
{{/if}}
{{!-- End General --}}

{{!-- Begin Article --}}
{{#if this.model.date}}
  <meta property="article:published_time" content={{this.model.date}}>
{{/if}}

{{#each this.model.tags as |tag|}}
  <meta property="article:tag" content={{tag}}>
{{/each}}
{{!-- End Article --}}

{{!-- Begin opengraph (Facebook, Slack, etc) --}}
{{#if this.model.siteName}}
  <meta property="og:site_name" content={{this.model.siteName}}>
{{/if}}

{{#if (or this.model.articleTitle this.model.title)}}
  <meta
    property="og:title"
    content={{if this.model.articleTitle this.model.articleTitle this.model.title}}
  >
{{/if}}

{{#if this.model.url}}
  <meta property="og:url" content={{this.model.url}}>
{{/if}}

{{#if this.model.description}}
  <meta property="og:description" content={{this.model.description}}>
{{/if}}

{{#if this.model.type}}
  <meta property="og:type" content={{this.model.type}}>
{{/if}}

{{#if this.model.imgSrc}}
  <meta property="og:image" content={{this.model.imgSrc}}>
  <meta property="og:image:type" content="image/png">
  <meta property="og:image:width" content="256">
  <meta property="og:image:height" content="256">
{{/if}}
{{!-- End opengraph --}}

{{!-- Begin Twitter --}}
<meta name="twitter:card" content="summary">

{{#if this.model.twitterUsername}}
  <meta name="twitter:site" content={{this.model.twitterUsername}}>
  <meta name="twitter:creator" content={{this.model.twitterUsername}}>
{{/if}}

{{#if this.model.imgSrc}}
  <meta name="twitter:image" content={{this.model.imgSrc}}>
{{/if}}

{{#if (or this.model.articleTitle this.model.title)}}
  <meta
    name="twitter:title"
    content={{if this.model.articleTitle this.model.articleTitle this.model.title}}
  >
{{/if}}

{{#if this.model.url}}
  <meta name="twitter:url" content={{this.model.url}}>
{{/if}}

{{#if this.model.description}}
  <meta name="twitter:description" content={{this.model.description}}>
{{/if}}

{{#if this.model.author}}
  <meta name="twitter:label1" content="Written by">
  <meta name="twitter:data1" content={{or this.model.author.name this.model.author}}>
{{/if}}

{{#if this.model.keywords}}
  <meta name="twitter:label2" content="Filed under">
  <meta name="twitter:data2" content={{this.model.keywords}}>
{{/if}}
{{!-- End Twitter --}}

{{!-- Begin JSON-LD --}}
{{#if this.model.jsonld}}
  <script type="application/ld+json">
    {{this.model.jsonld}}
  </script>
{{/if}}
{{!-- End JSON-LD --}}