{{- /*

  A version of the navbar-version-selector.html partial in Docsy,
  modified to read the versions from changelog child pages so that
  we don't have to maintain the menu separately in hugo.toml.

*/ -}}

{{ $changelog := site.GetPage "changelog" }}
{{ $pages := $changelog.RegularPages.ByDate.Reverse }}

<div class="dropdown">
    <a class="nav-link dropdown-toggle" href="#" role="button" data-bs-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
        All Versions
    </a>
    <ul class="dropdown-menu">
        {{- /* Prepend a link to the unstable spec version  */ -}}
        <li><a class="dropdown-item" href="https://spec.matrix.org/unstable">Unstable</a></li>
        {{- /* Add a link for each vX.X version  */ -}}
        {{ range $pages }}
            {{ if findRE `^v[0-9]+\.[0-9]+$` .Params.linkTitle }}
                <li><a class="dropdown-item" href="https://spec.matrix.org/{{ .Params.linkTitle }}">{{ .Params.linkTitle }}</a></li>
            {{ end }}
        {{ end }}
        {{- /* Append a link to historical spec versions in the changelog  */ -}}
        <li><a class="dropdown-item" href="/changelog/historical/">Historical</a></li>
    </ul>
</div>