{{/* Herkunft eines Beitrags: Version (→ Commit), Verlauf, Zitieren.
     Version/Verlauf nur, wenn Git-Info da ist (enableGitInfo) und repoURL gesetzt.
     „Zitieren" kopiert eine Quellenangabe in die Zwischenablage. */}}
{{ $repo := site.Params.repoURL }}
{{ $author := .Params.author | default site.Params.author.name }}
<div class="provenance" aria-label="Herkunft">
  {{/* Dialog: gleiche Pill-Reihe, sticht durch Pfeil + Akzentfarbe hervor. */}}
  <a class="prov-dialog" id="dialog-link" data-thread="{{ .RelPermalink }}" href="/dialog/?thread={{ .RelPermalink }}">→ Dialog</a>
  {{ with .GitInfo }}
    {{ with $repo }}
      <a class="prov-version" href="{{ . }}/commit/{{ $.GitInfo.Hash }}" title="Diese Version als Commit ansehen">Version {{ $.GitInfo.AbbreviatedHash }}</a>
      <a class="prov-history" href="{{ . }}/commits/branch/main/content/{{ $.File.Path }}">Verlauf</a>
    {{ end }}
  {{ end }}
  <button type="button" class="prov-cite" aria-expanded="false"
    data-title="{{ .Title }}"
    data-author="{{ $author }}"
    data-url="{{ .Permalink }}"
    {{ with .GitInfo }}data-version="{{ .AbbreviatedHash }}"{{ end }}>Zitieren</button>
</div>
<div class="prov-citation" hidden>
  <p class="prov-citation-text"></p>
  <div class="prov-citation-actions">
    <button type="button" class="prov-citation-copy">Kopieren</button>
    <span class="prov-citation-status" role="status"></span>
  </div>
</div>
<script>
  (function () {
    if (window.__provCite) return; window.__provCite = 1;
    var btn = document.querySelector('.prov-cite');
    var panel = document.querySelector('.prov-citation');
    if (!btn || !panel) return;
    var textEl = panel.querySelector('.prov-citation-text');
    var copyBtn = panel.querySelector('.prov-citation-copy');
    var statusEl = panel.querySelector('.prov-citation-status');

    var d = btn.dataset;
    var today = new Date().toLocaleDateString('de-CH');
    var v = d.version ? ', Version ' + d.version : '';
    // Format: Autor: Titel. OPENBUREAU, Version xxx. Abgerufen am TT.MM.JJJJ, URL
    var cite = d.author + ': ' + d.title + '. OPENBUREAU' + v + '. Abgerufen am ' + today + ', ' + d.url;
    textEl.textContent = cite;

    function selectText() {
      var r = document.createRange(); r.selectNodeContents(textEl);
      var sel = window.getSelection(); sel.removeAllRanges(); sel.addRange(r);
    }
    function copy() {
      if (navigator.clipboard && navigator.clipboard.writeText) {
        return navigator.clipboard.writeText(cite);
      }
      // Fallback für unsichere Kontexte (HTTP/LAN): execCommand auf Auswahl.
      return new Promise(function (resolve, reject) {
        try {
          var ta = document.createElement('textarea');
          ta.value = cite; ta.style.position = 'fixed'; ta.style.opacity = '0';
          document.body.appendChild(ta); ta.focus(); ta.select();
          var ok = document.execCommand('copy');
          document.body.removeChild(ta);
          ok ? resolve() : reject();
        } catch (e) { reject(e); }
      });
    }

    btn.addEventListener('click', function () {
      var open = panel.hasAttribute('hidden');
      if (open) { panel.removeAttribute('hidden'); selectText(); }
      else { panel.setAttribute('hidden', ''); }
      btn.setAttribute('aria-expanded', String(open));
    });
    copyBtn.addEventListener('click', function () {
      copy().then(function () { statusEl.textContent = 'Kopiert ✓'; })
            .catch(function () { statusEl.textContent = 'Markiert — bitte mit Strg/⌘+C kopieren.'; selectText(); });
      setTimeout(function () { statusEl.textContent = ''; }, 3000);
    });
  })();
</script>
<script>
  /* Wortmeldungs-Zahl an die Dialog-Pill hängen (→ Dialog · 3). */
  (function () {
    var l = document.getElementById('dialog-link'); if (!l) return;
    fetch('/api/comments?thread=' + encodeURIComponent(l.dataset.thread))
      .then(function (r) { return r.ok ? r.json() : []; })
      .then(function (d) { var n = d.filter(function (c) { return !c.deleted; }).length; if (n) l.textContent = '→ Dialog · ' + n; })
      .catch(function () {});
  })();
</script>