{{- $currentNode := . -}}
<nav class="pagination">
{{- template "pagination" dict "menu" .Site.Home "currentnode" $currentNode "menu_exclusion" .Site.Params.menu_exclusion -}}
{{- with ($.Scratch.Get "prevPage") -}}
<a class="nav nav-prev" href="{{ .Permalink }}" title="{{ .Title }}"><i class="fas fa-arrow-left" aria-hidden="true"></i> Prev - {{ .Title }}</a>
{{ end -}}
{{- with ($.Scratch.Get "nextPage") -}}
<a class="nav nav-next" href="{{ .Permalink }}" title="{{ .Title }}">Next - {{ .Title }} <i class="fas fa-arrow-right" aria-hidden="true"></i></a>
{{- end }}
</nav>

{{- define "pagination" -}}
{{- $currentNode := .currentnode -}}
{{- $menu_exclusion := .menu_exclusion -}}

{{- if hasPrefix $currentNode.Permalink .menu.Permalink -}}
  {{- $currentNode.Scratch.Set "NextPageOK" "OK" -}}
  {{- if .menu.IsHome -}}
    {{- $currentNode.Scratch.Set "prevPage" "" -}}
  {{- else -}}
    {{- $currentNode.Scratch.Set "prevPage" ($currentNode.Scratch.Get "prevPageTmp") -}}
  {{- end -}}
{{- else -}}
  {{- if eq ($currentNode.Scratch.Get "NextPageOK") "OK" -}}
    {{- $currentNode.Scratch.Set "NextPageOK" nil -}}
    {{ if in $menu_exclusion .menu.Section }}
    {{- else -}}
      {{- $currentNode.Scratch.Set "nextPage" .menu -}}
    {{- end -}}
  {{- end -}}
{{- end -}}

{{- $currentNode.Scratch.Set "prevPageTmp" .menu -}}
{{- $currentNode.Scratch.Set "pages" .menu.Pages -}}
{{- if .menu.IsHome -}}
  {{- $currentNode.Scratch.Set "pages" .menu.Sections -}}
{{- else if .menu.Sections -}}
  {{- $currentNode.Scratch.Set "pages" (.menu.Pages | union .menu.Sections) -}}
{{- end -}}
{{- $pages := ($currentNode.Scratch.Get "pages") -}}
{{- range $pages.ByWeight -}}
  {{- template "pagination" dict "menu" . "currentnode" $currentNode "menu_exclusion" $menu_exclusion -}}
{{- end -}}
{{- end -}}
