MediaWiki:BibTest.js

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/**
 * Bibliography Tag Filter and Sorting
 * Lädt automatisch wenn die Seite "Bibliography" aufgerufen wird
 */

(function() {
  'use strict';

  let ACTIVE_TAGS = new Set();

  function init() {
    const tagBar = document.getElementById('tagBar');
    const bibliography = document.getElementById('listView');
    
    if (!tagBar || !bibliography) return;

    // Sammle alle verfügbaren Tags
    const allTags = new Set();
    document.querySelectorAll('.bib-entry').forEach(entry => {
      const tags = entry.getAttribute('data-tags');
      if (tags) {
        tags.split(' ').forEach(tag => allTags.add(tag));
      }
    });

    // Sortiere und zeige Tags
    const sortedTags = Array.from(allTags).sort();
    tagBar.innerHTML = '';
    sortedTags.forEach(tag => {
      const span = document.createElement('span');
      span.className = 'tag inactive';
      span.textContent = tag;
      span.style.cursor = 'pointer';
      span.onclick = () => toggleTag(tag, span);
      tagBar.appendChild(span);
    });

    // Sortiere Einträge alphabetisch
    sortEntries();
  }

  function toggleTag(tag, element) {
    if (ACTIVE_TAGS.has(tag)) {
      ACTIVE_TAGS.delete(tag);
      element.classList.remove('active');
      element.classList.add('inactive');
    } else {
      ACTIVE_TAGS.add(tag);
      element.classList.add('active');
      element.classList.remove('inactive');
    }
    filterEntries();
  }

  function sortEntries() {
    const container = document.getElementById('listView');
    if (!container) return;

    const entries = Array.from(container.querySelectorAll('.bib-entry'));
    
    entries.sort((a, b) => {
      const titleA = a.querySelector('h3')?.textContent || '';
      const titleB = b.querySelector('h3')?.textContent || '';
      return titleA.localeCompare(titleB);
    });

    // Neu einfügen
    entries.forEach(entry => container.appendChild(entry));
  }

  function filterEntries() {
    const entries = document.querySelectorAll('.bib-entry');
    
    entries.forEach(entry => {
      const entryTags = (entry.getAttribute('data-tags') || '').split(' ').filter(t => t);
      
      if (ACTIVE_TAGS.size === 0) {
        entry.style.display = 'block';
      } else {
        // AND-Logik: Entry muss ALLE aktiven Tags haben
        const hasAllTags = Array.from(ACTIVE_TAGS).every(tag => entryTags.includes(tag));
        entry.style.display = hasAllTags ? 'block' : 'none';
      }
    });
  }

  // Abstract-Button Toggle
  document.addEventListener('click', function(e) {
    if (e.target.classList.contains('expand-btn')) {
      const abstractDiv = e.target.nextElementSibling;
      if (abstractDiv && abstractDiv.classList.contains('abstract')) {
        abstractDiv.classList.toggle('hidden');
        e.target.textContent = abstractDiv.classList.contains('hidden')
          ? 'Show Abstract'
          : 'Hide Abstract';
      }
    }
  });

  // Starte wenn DOM bereit
  if (document.readyState === 'loading') {
    document.addEventListener('DOMContentLoaded', init);
  } else {
    init();
  }
})();