/* ============================================================
   share.js — Lightweight social sharing for listing pages
   Zero dependencies. Provides WhatsApp, Telegram and copy-link
   buttons that read their share data from the page's <meta> tags.
   ============================================================ */

(function(){
  'use strict';

  /* ── Read share data from the page ─────────────────────────── */
  function meta(prop){
    var el = document.querySelector('meta[property="'+prop+'"]')
          || document.querySelector('meta[name="'+prop+'"]');
    return el ? el.getAttribute('content') : '';
  }

  var url   = meta('og:url') || location.href;
  var title = meta('og:title') || document.title;
  var desc  = meta('og:description') || meta('description') || '';
  var text  = title + ' — ' + desc;

  /* ── Attach handlers ───────────────────────────────────────── */
  document.addEventListener('click', function(e){
    var btn = e.target.closest('[data-share]');
    if(!btn) return;
    var action = btn.getAttribute('data-share');

    if(action === 'whatsapp'){
      window.open('https://wa.me/?text=' + encodeURIComponent(text + '\n' + url), '_blank');
    }
    else if(action === 'telegram'){
      window.open('https://t.me/share/url?url=' + encodeURIComponent(url) + '&text=' + encodeURIComponent(text), '_blank');
    }
    else if(action === 'copy'){
      if(navigator.clipboard && navigator.clipboard.writeText){
        navigator.clipboard.writeText(url).then(function(){
          _flash(btn, 'Copied!');
        });
      } else {
        // Fallback for older browsers
        var ta = document.createElement('textarea');
        ta.value = url;
        ta.style.position = 'fixed';
        ta.style.left = '-9999px';
        document.body.appendChild(ta);
        ta.select();
        document.execCommand('copy');
        document.body.removeChild(ta);
        _flash(btn, 'Copied!');
      }
    }
    else if(action === 'native' && navigator.share){
      navigator.share({ title: title, text: desc, url: url }).catch(function(){});
    }
  });

  function _flash(btn, msg){
    var orig = btn.textContent;
    btn.textContent = msg;
    btn.classList.add('share-flash');
    setTimeout(function(){
      btn.textContent = orig;
      btn.classList.remove('share-flash');
    }, 1800);
  }
})();