<!--
    Shortcode to render a video as part of content where the place in text flow is important.

    @params src Video `src` path.
    @params link  URI or Page Resource to wrap video in. Optional.
    @params rel Force relationship value. Optional.
-->

<!-- Variable assignment -->

{{- $src := $.Page.Resources.GetMatch ( .Get "src" ) -}}
{{- $linkedResource := $.Page.Resources.GetMatch ( .Get "link" ) -}}
{{- $valid_rel_values := partialCached "util/get_valid_rel_values.html" . -}}

<!-- Validation -->

{{- if ( not $src ) -}}
  {{- errorf "No Page Resource found for src %q (%q)" ( .Get "src" ) .Page.File.Path -}}
{{- end -}}

{{- if not ( eq $src.ResourceType "video" ) -}}
    {{- errorf "Resource %q has resource type %q (expected \"video\") (%q)" ( .Get "src" ) $src.ResourceType .Page.File.Path -}}
{{- else if ( eq $src.MediaType "video/ogg" ) -}}
    {{- errorf "Resource %q has 'video/ogg' media type %q (expected \"video/webm\" or other video type) (%q)" ( .Get "src" ) $src.MediaType .Page.File.Path -}}
{{- end -}}

{{- with .Get "rel" -}}
    {{- if not ( in $valid_rel_values . ) -}}
        {{- errorf "Invalid rel value %q (%q)" . .Page.File.Path -}}
    {{- end -}}
{{- end -}}

<!-- Rendering -->

{{- if .Get "link" -}}
    {{- if $linkedResource -}}
        <a href="{{- $linkedResource.RelPermalink -}}"{{- with .Get "rel" }} rel="{{- . -}}"{{- end -}}>
    {{- else -}}
        <a href="{{- .Get "link" -}}">
    {{- end -}}
{{- end -}}

{{- partial "media/video.html" ( dict "src" $src "page_file_path" .Page.File.Path ) -}}

{{- if .Get "link" -}}
    </a>
{{- end -}}