// WebDrop Bridge - Intercept Version
// Prevents browser drag for ALT+drag, hands off to Qt for file drag

(function() {
  if (window.__webdrop_intercept_injected) return;
  window.__webdrop_intercept_injected = true;

  // Intercept mode enabled
  var INTERCEPT_ENABLED = true;

  console.log('%c[WebDrop Intercept] Script loaded - INTERCEPT_ENABLED=' + INTERCEPT_ENABLED, 'background: #2196F3; color: white; font-weight: bold; padding: 4px 8px;');
  
  var currentDragUrl = null;
  var angularDragHandlers = [];
  var originalAddEventListener = EventTarget.prototype.addEventListener;
  var listenerPatchActive = true;
  
  // Capture Authorization token from XHR requests
  window.capturedAuthToken = null;
  var originalXHRSetRequestHeader = XMLHttpRequest.prototype.setRequestHeader;
  XMLHttpRequest.prototype.setRequestHeader = function(header, value) {
    if (header === 'Authorization' && value.startsWith('Bearer ')) {
      window.capturedAuthToken = value;
      console.log('[Intercept] Captured auth token');
    }
    return originalXHRSetRequestHeader.apply(this, arguments);
  };
  
  // ============================================================================
  // PART 1: Intercept Angular's dragstart listener registration
  // ============================================================================
  
  EventTarget.prototype.addEventListener = function(type, listener, options) {
    if (listenerPatchActive && type === 'dragstart' && listener) {
      // Store Angular's dragstart handler instead of registering it
      console.log('[Intercept] Storing Angular dragstart listener for', this.tagName || this.constructor.name);
      angularDragHandlers.push({
        target: this,
        listener: listener,
        options: options
      });
      return; // Don't actually register it yet
    }
    // All other events: use original
    return originalAddEventListener.call(this, type, listener, options);
  };
  
  // ============================================================================
  // PART 2: Intercept DataTransfer.setData to capture URL
  // ============================================================================
  
  var originalSetData = DataTransfer.prototype.setData;
  
  DataTransfer.prototype.setData = function(format, data) {
    if (format === 'text/plain' || format === 'text/uri-list') {
      currentDragUrl = data;
      console.log('%c[Intercept] Captured URL:', 'color: #4CAF50; font-weight: bold;', data.substring(0, 80));
    }
    return originalSetData.call(this, format, data);
  };
  
  console.log('[Intercept] DataTransfer.setData patched ✓');
  
  // ============================================================================
  // PART 3: Install OUR dragstart handler in capture phase
  // ============================================================================
  
  setTimeout(function() {
    console.log('[Intercept] Installing dragstart handler, have', angularDragHandlers.length, 'Angular handlers');
    
    // Stop intercepting addEventListener
    listenerPatchActive = false;
    
    // Register OUR handler in capture phase
    originalAddEventListener.call(document, 'dragstart', function(e) {
      currentDragUrl = null; // Reset
      
      console.log('%c[Intercept] dragstart', 'background: #FF9800; color: white; padding: 2px 6px;', 'ALT:', e.altKey);
      
      // Call Angular's handlers first to let them set the data
      var handled = 0;
      for (var i = 0; i < angularDragHandlers.length; i++) {
        var h = angularDragHandlers[i];
        if (h.target === document || h.target === e.target || 
            (h.target.contains && h.target.contains(e.target))) {https://devagravitystg.file.core.windows.net/devagravitysync/anPGZszKzgKaSz1SIx2HFgduy/weiss_ORIGINAL.jpg
          try {
            h.listener.call(e.target, e);
            handled++;
          } catch(err) {
            console.error('[Intercept] Error calling Angular handler:', err);
          }
        }
      }
      
      console.log('[Intercept] Called', handled, 'Angular handlers, URL:', currentDragUrl ? currentDragUrl.substring(0, 60) : 'none');
      
      // NOW check if we should intercept
      if (e.altKey && currentDragUrl) {
        var isAzure = /^https?:\/\/.+\.file\.core\.windows\.net\//i.test(currentDragUrl);
        var isZDrive = /^z:/i.test(currentDragUrl);
        
        if (isAzure || isZDrive) {
          console.log('%c[Intercept] PREVENTING browser drag, using Qt', 
                      'background: #F44336; color: white; font-weight: bold; padding: 4px 8px;');
          
          e.preventDefault();
          e.stopPropagation();
          
          ensureChannel(function() {
            if (window.bridge && typeof window.bridge.start_file_drag === 'function') {
              console.log('%c[Intercept] → Qt: start_file_drag', 'color: #9C27B0; font-weight: bold;');
              window.bridge.start_file_drag(currentDragUrl);
            } else {
              console.error('[Intercept] bridge.start_file_drag not available!');
            }
          });
          
          currentDragUrl = null;
          return false;
        }
      }
      
      console.log('[Intercept] Normal drag, allowing browser');
    }, true); // Capture phase
    
    console.log('[Intercept] dragstart handler installed ✓');
  }, 1500); // Wait for Angular to register its listeners
  
  // ============================================================================
  // PART 3: QWebChannel connection
  // ============================================================================
  
  function ensureChannel(callback) {
    if (window.bridge) {
      callback();
      return;
    }
    
    if (window.QWebChannel && window.qt && window.qt.webChannelTransport) {
      new QWebChannel(window.qt.webChannelTransport, function(channel) {
        window.bridge = channel.objects.bridge;
        console.log('[WebDrop Intercept] QWebChannel connected ✓');
        callback();
      });
    } else {
      console.error('[WebDrop Intercept] QWebChannel not available!');
    }
  }
  
  // Initialize channel on load
  if (document.readyState === 'loading') {
    document.addEventListener('DOMContentLoaded', function() {
      ensureChannel(function() {
        console.log('[WebDrop Intercept] Bridge ready ✓');
      });
    });
  } else {
    ensureChannel(function() {
      console.log('[WebDrop Intercept] Bridge ready ✓');
    });
  }
  
  console.log('%c[WebDrop Intercept] Ready! ALT-drag will use Qt file drag.', 
              'background: #4CAF50; color: white; font-weight: bold; padding: 4px 8px;');
})();