updated the upload functionality to handle large files and added a new image file

app/app.py

@@ -69,8 +69,12 @@ db_path = os.path.join(instance_dir, 'dashboard.db')
 app.config['SQLALCHEMY_DATABASE_URI'] = f'sqlite:///{db_path}'
 app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
 
-# Set maximum content length to 1GB
-app.config['MAX_CONTENT_LENGTH'] = 2048 * 2048 * 2048  # 2GB, adjust as needed
+# Set maximum content length to 2GB
+app.config['MAX_CONTENT_LENGTH'] = 2048 * 1024 * 1024  # 2GB, adjust as needed
+
+# Set longer timeouts for file processing
+app.config['SEND_FILE_MAX_AGE_DEFAULT'] = 300  # 5 minutes for static files
+app.config['PERMANENT_SESSION_LIFETIME'] = 1800  # 30 minutes for sessions
 
 # Ensure the instance folder exists
 os.makedirs(app.instance_path, exist_ok=True)
@@ -95,6 +99,22 @@ login_manager.login_view = 'login'
 
 migrate = Migrate(app, db)
 
+# Add error handlers for better user experience
+@app.errorhandler(413)
+def request_entity_too_large(error):
+    flash('File too large. Please upload files smaller than 2GB.', 'danger')
+    return redirect(url_for('dashboard'))
+
+@app.errorhandler(408)
+def request_timeout(error):
+    flash('Request timed out. Please try uploading smaller files or try again later.', 'danger')
+    return redirect(url_for('dashboard'))
+
+@app.errorhandler(500)
+def internal_server_error(error):
+    flash('An internal server error occurred. Please try again or contact support.', 'danger')
+    return redirect(url_for('dashboard'))
+
 @login_manager.user_loader
 def load_user(user_id):
     return db.session.get(User, int(user_id))
@@ -213,8 +233,23 @@ def upload_content():
             flash('Please select a target type and target ID.', 'danger')
             return redirect(url_for('upload_content'))
 
-        # Process uploaded files and get results
-        results = process_uploaded_files(app, files, media_type, duration, target_type, target_id)
+        try:
+            # Process uploaded files and get results
+            results = process_uploaded_files(app, files, media_type, duration, target_type, target_id)
+            
+            # Check for any failed uploads
+            failed_files = [r for r in results if not r.get('success', True)]
+            if failed_files:
+                for failed in failed_files:
+                    flash(f"Error uploading {failed.get('filename', 'unknown file')}: {failed.get('message', 'Unknown error')}", 'warning')
+            else:
+                flash('All files uploaded and processed successfully!', 'success')
+                
+        except Exception as e:
+            print(f"Error in upload_content: {e}")
+            import traceback
+            traceback.print_exc()
+            flash(f'Upload failed: {str(e)}', 'danger')
 
         return redirect(return_url)