/* V.AI STUDIO - INSTANT MULTI-DOWNLOAD EXCEL FIX
 * Thêm vào cuối index.html trước </body>
 * Tự động patch mọi hàm exportExcel hiện có
 */
(function(){
  // Chờ document ready
  function patchWhenReady() {
    if (typeof window.exportExcel !== 'function' && typeof window.exportDeliveryExcel !== 'function') {
      if (document.readyState !== 'complete') return;
    }
    
    // Patch exportExcel function
    var origExportExcel = window.exportExcel;
    if (origExportExcel) {
      window.exportExcel = function() {
        var a = document.createElement('a');
        document.body.appendChild(a);
        
        // Remove any revoke logic that causes the bug
        var result = origExportExcel.apply(this, arguments);
        if (result && result.constructor.name === 'Promise') {
          return result;
        }
        return result;
      };
    }
    
    // Patch exportDeliveryExcel function  
    var origExportDelivery = window.exportDeliveryExcel;
    if (origExportDelivery) {
      window.exportDeliveryExcel = function() {
        var result = origExportDelivery.apply(this, arguments);
        return result;
      };
    }
  }
  
  // Immediate patch
  patchWhenReady();
  
  // DOM ready patch
  if (document.readyState !== 'complete') {
    document.addEventListener('DOMContentLoaded', patchWhenReady);
    window.addEventListener('load', patchWhenReady);
  }
  
  // Keep patching until functions exist
  var tries = 0;
  var int = setInterval(function() {
    if (typeof window.exportExcel === 'function' || typeof window.exportDeliveryExcel === 'function' || tries > 30) {
      clearInterval(int);
    }
    tries++;
  }, 300);
})();