{{ $context := . -}}

{{- $pages := union .RegularPages .Sections -}}
{{- $pages = where $pages "Params.sidebar.exclude" "!=" true -}}

{{- $data := slice -}}

{{- range $pages.ByWeight -}}
  {{ $structure := (partial "sidebar/section-walk" .) | unmarshal -}}
  {{ $data = $data | append $structure -}}
{{ end -}}

{{- define "partials/sidebar/section-walk" -}}
  {{- with . -}}
  {
    "title": "{{ .LinkTitle | default .File.BaseFileName }}",
    "link": "{{ .RelPermalink }}",
    "open": {{ .Params.sidebar.open | default false }}
    {{- if .IsSection }},
    "section": [
      {{ $pages := union .RegularPages .Sections -}}
      {{ $pages = where $pages "Params.sidebar.exclude" "!=" true -}}
      {{ range $index, $page := $pages.ByWeight -}}
        {{ partial "sidebar/section-walk" . }}{{ if not (ge $index (sub (len $pages) 1)) }},{{ end -}}
      {{ end -}}
    ]
    {{ end -}}
  }
  {{- end }}
{{- end -}}

{{ return ($data | jsonify) }}