{{ define "main" }}
    {{- $thumb_width := default 480 ($.Param "thumb_width") }}
    {{- $thumb_quality := default 50 ($.Param "thumb_quality") }}

    {{- $thumb_size := default (printf "%dx q%d" $thumb_width $thumb_quality) ($.Param "thumb_size") }}

    {{- $.Scratch.Set "tags" (dict) }}

    {{- range $.Site.Pages }}
        {{- $page := . }}

        {{- /* Enumerate the tags on the page */}}
        {{- range (index $page.Params $.Data.Plural) }}
            {{- $tag := . }}

            {{- partial "scratch_set_retalbumthumb.html" $page }}
            {{- /* Note that the Scratch below must come from $page context, not $ */}}
            {{- $image := $page.Scratch.Get "retalbumthumb" }}

            {{- if not $image }}
                {{- errorf (printf "When processing '%s', no thumbnail image found for: %s" $page.Path $tag) }}
            {{- end }}

            {{- $thumb := $image.Resize $thumb_size }}
            
            {{- /* Create an object representing this tag term entry */}}
            {{- $page_desc := dict "type" "link" "link" $page.RelPermalink "title" $page.Title "thumb" $thumb }}

            {{- /* Add this object to the list */}}
            {{- $cur_entry := (index ($.Scratch.Get "tags") $tag) }}
            {{- $new_list := $cur_entry | append $page_desc }}
            {{- $.Scratch.Set "tags" (merge ($.Scratch.Get "tags") (dict $tag $new_list)) }}
        {{ end }}

        {{- /* Enumerate the tags on the resource images */}}
        {{- with $page.File }}
            {{- range resources.Match (path.Join $page.File.Dir "*") }}
                {{- $img := . }}
                {{- $filename := path.Base $img.Name }}
                {{- $filedir := path.Dir $img.Name }}

                {{- with $page.Params.resources }}
                    {{- range first 1 (where . "src" $img.Name) }}
                        {{- $resource := . }}
                        {{- range (index . $.Data.Plural) }}
                            {{- $tag := . }}

                            {{- $thumb := $img.Resize $thumb_size }}

                            {{- /* Create an object representing this tag term entry */}}
                            {{- $url := ( printf "/%s/#%s" $filedir ( md5 $filename ) ) | relURL }}
                            {{- $img_desc := dict "type" "link" "link" $url "title" $resource.phototitle "thumb" $thumb }}
                            {{- /* Add this object to the list */}}
                            {{- $cur_entry := (index ($.Scratch.Get "tags") $tag) }}
                            {{- $new_list := $cur_entry | append $img_desc }}
                            {{- $.Scratch.Set "tags" (merge ($.Scratch.Get "tags") (dict $tag $new_list)) }}
                        {{- end }}
                    {{- end }}
                {{- end }}
            {{- end }}
        {{- end }}
    {{- end }}


    {{- range $term, $term_list := $.Scratch.Get "tags" }}

        <h1 id="{{ $term | urlize }}">{{ $term }}</h1>
        {{- $.Scratch.Set "content" $term_list }}
        {{- partial "render_img_column_flexrow.html" $ }}

    {{ end }}
{{ end }}