{{- /*
  Timeline rendering partial for code fences extended syntax and shortcode usage.
  - Supports events from inline content, data key, resource file, or direct Events input.
  - Supports reverse order, placement, animation, node style, and size options.
  @param {Object} [.Options] render options from shortcode or code fence attributes
  @param {Boolean} [.Options.reverse] whether to sort events in descending order
  @param {String} [.Options.placement] default timestamp placement
  @param {Boolean} [.Options.animation] whether to enable item animation
  @param {String} [.Options.size] timeline size variant
  @param {String} [.Options.node] timeline node style
  @param {String} [.Options.data] key of data source under data/timeline
  @param {String} [.Options.file] local resource path for timeline data
  @param {String} [.Inner] inline timeline source content
  @param {Array} [.Events] direct events array override
  @param {Object} [.Page] current page context
*/ -}}

{{- $reverse := .Options.reverse | default false -}}
{{- $placement := .Options.placement | default "bottom" -}}
{{- $animation := .Options.animation | default false -}}
{{- $size := .Options.size | default "medium" -}}
{{- $node := .Options.node | default "circle" -}}
{{- $data := .Options.data -}}
{{- $file := .Options.file -}}

{{- /* Get Timeline events */ -}}
{{- $content := .Inner -}}
{{ with $data }}
  {{- $content = index hugo.Data.timeline (printf "%v.%v" . page.Language) | default (index hugo.Data.timeline .) -}}
  {{- if not $content -}}
    {{- warnf "Timeline: data not found, please ensure the data file \"data/timeline/%s.{json|yml|yaml|toml}\" exists." . -}}
  {{- end -}}
{{- else -}}
  {{- with dict "Path" $file "Resources" .Resources | partial "function/resource.html" }}
    {{- $content = .Content -}}
  {{- else with $file -}}
    {{- warnf "Timeline: no such data file: %s" . -}}
  {{- end -}}
  {{- $content = $content | transform.Unmarshal -}}
{{- end -}}
{{- $events := $content.events | default slice -}}
{{- with .Events -}}
  {{- $events = . -}}
{{- end -}}
{{- $events = sort $events "timestamp" (cond $reverse "desc" "asc") -}}
{{- if not $events -}}
  {{- warnf "Timeline: events is empty, executing in file %s" $.Position -}}
{{- end -}}

{{- /* Set Timeline style  */ -}}
{{- $style := "" -}}
{{- with .Options.width -}}
  {{- $style = printf "width: %v;" . -}}
{{- end -}}
{{- with .Options.height -}}
  {{- $style = add $style (printf "height: %v;" .) -}}
{{- end -}}
{{- with $style -}}
  {{- $style = printf `style="%v"` . -}}
{{- end -}}

<ul
  class="fi-timeline{{ with .Options.class }} {{ . }}{{ end }}"
  {{ $style | safeHTMLAttr }}
  {{- with $animation }} data-animation{{- end -}}
>
  {{- range $index, $item := $events -}}
    {{- $itemStyle := printf "--fi-timeline-index: %v;" (add $index 1) -}}
    {{- with $item.color -}}
      {{- $itemStyle = add $itemStyle (printf "--timeline-circle-color: %v;" .) -}}
    {{- end -}}
    {{- $itemStyle = printf `style="%v"` $itemStyle -}}

    <li
      class="fi-timeline-item"
      data-size="{{ $item.size | default $size }}"
      data-node="{{ $item.node | default $node }}"
      {{ $itemStyle | safeHTMLAttr }}
      {{- with $item.type }} data-type="{{ . }}"{{- end -}}
    >
      {{- if $item.hideTimestamp -}}
        <div class="fi-timeline-item__content">{{ $item.content | page.RenderString }}</div>
      {{- else if eq ($item.placement | default $placement) "top" -}}
        <div class="fi-timeline-item__timestamp is-top">{{ $item.timestamp }}</div>
        <div class="fi-timeline-item__content">{{ $item.content | page.RenderString }}</div>
      {{- else -}}
        <div class="fi-timeline-item__content">{{ $item.content | page.RenderString }}</div>
        <div class="fi-timeline-item__timestamp is-bottom">{{ $item.timestamp }}</div>
      {{- end -}}
  </li>
  {{- end -}}
</ul>
{{- /* EOF */ -}}