Upload gh-download-fix-auto.js

gh-download-fix-auto.js

@@ -0,0 +1,138 @@
+/**
+ * GH Download Fix - Auto patch for index.html
+ * This script auto-patches the exportDeliveryExcel/PDF functions on page load
+ * 
+ * FIXES:
+ * 1. exportDeliveryExcel/PDF now correctly receives order parameter from order-store.js
+ * 2. Click protection prevents multiple rapid downloads
+ * 3. Blob URLs are retained longer to allow multiple downloads
+ */
+(function() {
+    'use strict';
+    
+    // Wait for all scripts to load
+    var PATCH_DELAYS = [500, 2000, 5000];
+    
+    PATCH_DELAYS.forEach(function(delay) {
+        setTimeout(applyPatch, delay);
+    });
+    
+    // Also run on DOM ready
+    if (document.readyState !== 'loading') {
+        setTimeout(applyPatch, 100);
+    } else {
+        document.addEventListener('DOMContentLoaded', function() {
+            setTimeout(applyPatch, 100);
+        });
+    }
+    
+    function applyPatch() {
+        // Only patch once
+        if (window.__ghDownloadPatched) return;
+        
+        // Check if functions exist
+        if (typeof window.exportDeliveryExcel === 'undefined' || 
+            typeof window.exportDeliveryPDF === 'undefined') return;
+        
+        window.__ghDownloadPatched = true;
+        
+        // Store original functions
+        var origDE = window.exportDeliveryExcel;
+        var origDP = window.exportDeliveryPDF;
+        
+        // === PATCH exportDeliveryExcel ===
+        window.exportDeliveryExcel = function(order, opt) {
+            var btn = document.activeElement;
+            
+            // Click protection
+            if (btn && btn.dataset.vaiExporting === '1') {
+                console.log('[GH Fix] Download in progress, ignoring click');
+                return;
+            }
+            
+            if (btn) {
+                btn.dataset.vaiExporting = '1';
+                var origHtml = btn.innerHTML;
+                btn.dataset.vaiOrigHtml = origHtml;
+                btn.innerHTML = '<span style="opacity:0.7">⏳</span>';
+            }
+            
+            // Use VAI_QR._doExportDeliveryExcel if available (has full implementation)
+            if (window.VAI_QR && typeof window.VAI_QR.exportDeliveryExcel === 'function') {
+                // If order provided, let VAI_QR handle it
+                var result = window.VAI_QR.exportDeliveryExcel(order, opt);
+                setTimeout(function() {
+                    if (btn) {
+                        btn.dataset.vaiExporting = '0';
+                        if (btn.dataset.vaiOrigHtml) btn.innerHTML = btn.dataset.vaiOrigHtml;
+                    }
+                }, 2000);
+                return result;
+            }
+            
+            // Fallback to original
+            if (origDE) {
+                var r = origDE.call(this, order, opt);
+                setTimeout(function() {
+                    if (btn) {
+                        btn.dataset.vaiExporting = '0';
+                        if (btn.dataset.vaiOrigHtml) btn.innerHTML = btn.dataset.vaiOrigHtml;
+                    }
+                }, 2000);
+                return r;
+            }
+        };
+        
+        // === PATCH exportDeliveryPDF ===
+        window.exportDeliveryPDF = function(order, opt) {
+            var btn = document.activeElement;
+            
+            if (btn && btn.dataset.vaiExporting === '1') return;
+            
+            if (btn) {
+                btn.dataset.vaiExporting = '1';
+                var origHtml = btn.innerHTML;
+                btn.dataset.vaiOrigHtml = origHtml;
+                btn.innerHTML = '<span style="opacity:0.7">⏳</span>';
+            }
+            
+            if (window.VAI_QR && typeof window.VAI_QR.exportDeliveryPDF === 'function') {
+                var result = window.VAI_QR.exportDeliveryPDF(order, opt);
+                setTimeout(function() {
+                    if (btn) {
+                        btn.dataset.vaiExporting = '0';
+                        if (btn.dataset.vaiOrigHtml) btn.innerHTML = btn.dataset.vaiOrigHtml;
+                    }
+                }, 2000);
+                return result;
+            }
+            
+            if (origDP) {
+                var r = origDP.call(this, order, opt);
+                setTimeout(function() {
+                    if (btn) {
+                        btn.dataset.vaiExporting = '0';
+                        if (btn.dataset.vaiOrigHtml) btn.innerHTML = btn.dataset.vaiOrigHtml;
+                    }
+                }, 2000);
+                return r;
+            }
+        };
+        
+        console.log('[GH Fix] Auto-patched exportDeliveryExcel/PDF');
+    }
+    
+    // Also patch URL.revokeObjectURL for longer blob retention
+    if (!window.__blobRetainPatched) {
+        window.__blobRetainPatched = true;
+        var origRevoke = URL.revokeObjectURL;
+        URL.revokeObjectURL = function(url) {
+            if (!url || !url.startsWith('blob:')) {
+                return origRevoke.call(URL, url);
+            }
+            // Don't revoke immediately - let browser handle cleanup
+            // This allows multiple downloads from same blob
+            return;
+        };
+    }
+})();