auto-download rework..

frontend/vehicles.html

@@ -1506,34 +1506,31 @@
                         infoRow('Real-time Ratio', d.speed_vs_realtime + 'x', 'Processing speed relative to video playback rate.');
 
                     if (d.video_id) {
-                        loadReports(d.video_id);
-
-                        // Auto-Download Logic (Respects live toggle state)
-                        if (document.getElementById('sv-auto-download').classList.contains('active')) {
-                            const preferredFmt = document.getElementById('sv-report').value; // Get png or pdf
-                            console.log(`[UrbanFlow] Auto-download triggered for .${preferredFmt}...`);
-                            
-                            setTimeout(() => {
-                                fetch(`/reports_list/${d.video_id}`)
-                                    .then(r => r.json())
-                                    .then(res => {
-                                        // Try to find the file matching the preferred format first
-                                        let targetFile = res.files.find(f => f.endsWith(`.${preferredFmt}`));
-                                        // Fallback to any PDF if preferred format not found
-                                        if (!targetFile) targetFile = res.files.find(f => f.endsWith('.pdf'));
-                                        
-                                        if (targetFile) {
-                                            const link = document.createElement('a');
-                                            link.href = `/reports/${d.video_id}/${targetFile}`;
-                                            link.download = targetFile;
-                                            document.body.appendChild(link);
-                                            link.click();
-                                            document.body.removeChild(link);
-                                        }
-                                    })
-                                    .catch(err => console.error('[UrbanFlow] Auto-download failed:', err));
-                            }, 3000); 
-                        }
+                        loadReports(d.video_id).then(data => {
+                            if (!data) return;
+
+                            // Auto-Download Logic (Respects live toggle state)
+                            if (document.getElementById('sv-auto-download').classList.contains('active')) {
+                                const preferredFmt = document.getElementById('sv-report').value; 
+                                console.log(`[UrbanFlow] Auto-downloading ${preferredFmt} reports...`);
+                                
+                                // Download the primary charts in the user's preferred format
+                                data.files.forEach(targetFile => {
+                                    // We only auto-download the primary KPI charts, not everything
+                                    const isTarget = targetFile.endsWith(`.${preferredFmt}`) && 
+                                                   (targetFile.includes('congestion') || targetFile.includes('direction') || targetFile.includes('flow'));
+                                    
+                                    if (isTarget) {
+                                        const link = document.createElement('a');
+                                        link.href = `/reports/${d.video_id}/${targetFile}`;
+                                        link.download = targetFile;
+                                        document.body.appendChild(link);
+                                        link.click();
+                                        document.body.removeChild(link);
+                                    }
+                                });
+                            }
+                        });
                     }
 
                     // Show New Analysis button in Settings
@@ -1593,7 +1590,7 @@
         async function loadReports(videoId) {
             const res = await fetch(`/reports/${videoId}`, { method: 'POST' });
             const data = await res.json();
-            if (!data.files || !data.files.length) return;
+            if (!data.files || !data.files.length) return null;
 
             document.getElementById('reports-pending').classList.add('hidden');
             const grid = document.getElementById('reports-grid');
@@ -1649,6 +1646,7 @@
                 `;
                 grid.appendChild(card);
             });
+            return data;
         }
 
         function toggleExportMaster(el) {