/* /assets/js/bridge/refs.js — Referenzen & Custom Fix/Flex (FINAL KORRIGIERT: Snippet Cleanup) */
(function (w) {
  var B = w.BridgeParts = w.BridgeParts || {};
  if (!B.CATEGORY_CONFIG) B.CATEGORY_CONFIG = {}; 

  /* ---------- Basis-Konfig (unverändert) ---------- */
  var SHOW_SNIPPETS_IN_FIX_DEFAULT = false;
  var MODE = (window.__editorMode || 'templates').toLowerCase(); 

  /* ---------- Hilfs-UI (unverändert) ---------- */
  B.editorRefPlaceholder = function (type, id, name) {
    var safe = (name || '').replace(/[<>&"]/g, '');
    return {
      html:
        '<div data-ref-type="' + type + '" data-ref-id="' + id + '" data-ref-name="' + safe + '" ' +
        'style="border:1px dashed #94a3b8;padding:8px;border-radius:6px;background:#f8fafc;margin:8px 0;">' +
        '<strong style="font:600 12px system-ui,Arial">Ref: ' + type + ' #' + id + '</strong>' +
        '<div style="font:12px system-ui,Arial;opacity:.8">' + safe + '</div>' +
        '</div>'
    };
  };

  /* ---------- Loader (REST) (unverändert) ---------- */
  async function jsonList(url){
    try{
      var res = await fetch(url, { credentials:'same-origin', cache:'no-store' });
      var data = await res.json();
      return data && data.items ? data.items : (Array.isArray(data) ? data : []);
    }catch(e){ return []; }
  }
  B.fetchTemplates = async function(){ 
    var rows = await jsonList('../api.php?action=templates.list&t='+Date.now());
    return rows.map(r => ({ id:r.id, name:r.name }));
  };
  B.fetchTemplateFull = async function (id) {
    try {
      var url = '../api.php?action=templates.get&id=' + encodeURIComponent(id) + '&t=' + Date.now();
      var res = await fetch(url, { credentials: 'same-origin', cache: 'no-store' });
      var data = await res.json();
      var it = data && (data.item || data);
      return (it && (it.html || it.content)) ? (it.html || it.content) : '';
    } catch (e) { return ''; }
  };
  B.fetchSections = async function(){
    var rows = await jsonList('../api.php?action=sections.list&t='+Date.now());
    return rows.map(r => ({ id:r.id, name:r.name, html:r.html || '' }));
  };
  B.fetchBlocks = async function(){
    var rows = await jsonList('../api.php?action=blocks.list&t='+Date.now());
    return rows.map(r => ({ id:r.id, name:r.name, html:r.html || '' }));
  };
  B.fetchSnippets = async function(){
    var rows = await jsonList('../api.php?action=snippets.list&t='+Date.now());
    return rows.map(r => ({ id:r.id, name:r.name, html:r.html || r.content || '' }));
  };

  /* ---------- lokale Helfer (unverändert) ---------- */
  function addOnce(bm, id, def){
    if (!id || typeof id !== 'string') return;
    try{ if (bm.get && bm.get(id)) return; bm.add(id, def); }catch{}
  }
  function removeByPrefix(bm, prefix){
    try{
      var all = (bm.getAll && bm.getAll()) || [];
      (all.models || all).forEach(function(b){
        if (!b) return;
        var id = (b.get && b.get('id')) || b.id || '';
        if (id && String(id).startsWith(prefix)) {
          try{ bm.remove(id); }catch{}
        }
      });
    }catch{}
  }

  /* ---------- Referenzbibliothek (lib-*) (angepasst: Zuweisung zu 'custom') ---------- */
  B.addReferenceLibrary = function (ed, payload) {
    payload = payload || {};
    var templates = payload.templates || [];
    var sections  = payload.sections  || [];
    var blocks    = payload.blocks    || [];

    // Aggressive Bereinigung aller lib-tpl-ref-* Blöcke
    removeByPrefix(ed.BlockManager, 'lib-tpl-ref-');

    var bm = ed.BlockManager;
    if (B._ensureCategories) B._ensureCategories(bm); // Stellt sicher, dass die Hauptkategorien existieren

    // Explizite Kategorie-Definitionen
    var cat_templates = { id:'lib-templates', label:B.CATEGORY_CONFIG['lib-templates'].label, open:true };
    var cat_custom = { id:'custom', label:B.CATEGORY_CONFIG.custom.label, open:true };
    
    // Template-Referenzen (Prio 1) - NUR IM TEMPLATE-MODUS HINZUFÜGEN
    if (MODE === 'templates') { 
      templates.forEach(function (t) {
        addOnce(bm, 'lib-tpl-ref-' + t.id, {
          label: (t.name || ('Vorlage #' + t.id)),
          category: cat_templates, // Zuweisung zur Prio 1
          media: '<svg viewBox="0 0 24 24" width="22" height="22"><rect x="4" y="5" width="16" height="14" rx="2" stroke="currentColor" fill="none" stroke-width="2"/></svg>',
          content: B.editorRefPlaceholder('template', t.id, t.name).html
        });
      });
    }

    // Sections-Referenzen (werden zu Custom umgeleitet, Prio 2)
    sections.forEach(function (s) {
      addOnce(bm, 'lib-sec-' + s.id, {
        label: s.name || ('Section #' + s.id),
        category: cat_custom, // Explizit Custom
        media: '<svg viewBox="0 0 24 24" width="22" height="22"><rect x="3" y="4" width="18" height="16" rx="2" stroke="currentColor" fill="none" stroke-width="2"/></svg>',
        content: B.editorRefPlaceholder('section', s.id, s.name).html
      });
    });

    // Blocks-Referenzen (werden zu Custom umgeleitet, Prio 2)
    blocks.forEach(function (b) {
      addOnce(bm, 'lib-blk-' + b.id, {
        label: b.name || ('Block #' + b.id),
        category: cat_custom, // Explizit Custom
        media: '<svg viewBox="0 0 24 24" width="22" height="22"><rect x="6" y="7" width="12" height="10" rx="2" stroke="currentColor" fill="none" stroke-width="2"/></svg>',
        content: B.editorRefPlaceholder('block', b.id, b.name).html
      });
    });
  };

  /* ---------- Custom Fix/Flex (ENTFERNT / GELEERT) ---------- */
  B.addCustomLibrary = function (ed, payload, mode) {
    /* (Keine Aktion nötig.) */
  };

  // WICHTIGE NEUE FUNKTION: Entfernt alle alten Snippet-Blöcke
  B.addEditableTemplatesLibrary = function(ed) {
    // Aggressive Bereinigung aller alten flexiblen Snippet-Blöcke,
    // um Konflikte mit den neuen custom-snippet-* Blöcken zu vermeiden.
    removeByPrefix(ed.BlockManager, 'snip-'); 
    return Promise.resolve();
  };
  
  /* ---------- Ref-Sammlung für Speichern/Render (unverändert) ---------- */
  B.collectRefs = function (ed) {
    var root = ed.getWrapper && ed.getWrapper();
    var els = root && root.find ? root.find('[data-ref-type]') : [];
    var out = [];
    if (Array.isArray(els) && els.length) {
      els.forEach(function (el) {
        try {
          var m = el.getAttributes ? el.getAttributes() : {};
          var t = (m['data-ref-type'] || '').toString().toLowerCase();
          var i = parseInt(m['data-ref-id'] || '0', 10);
          if (!t || !i) return;
          if (!/^(template|section|block|snippet)$/.test(t)) return;
          if (t === 'snippet') return; // Snippets immer flex/by value

          out.push({
            sort: out.length,
            ref_type: t === 'template' ? 'section' : t,
            ref_id: i,
            overrides_json: null,
            lock_to_version: null
          });
        } catch {}
      });
    }
    return out;
  };

})(window);