fix: gomobile compatibility for HandleURLWithExtension return type

go_backend/exports.go

@@ -1512,11 +1512,19 @@ func GetSearchProvidersJSON() (string, error) {
 // Returns JSON with type, tracks, album info, etc.
 func HandleURLWithExtensionJSON(url string) (string, error) {
 	manager := GetExtensionManager()
-	result, extensionID, err := manager.HandleURLWithExtension(url)
+	resultWithID, err := manager.HandleURLWithExtension(url)
 	if err != nil {
 		return "", err
 	}
 
+	result := resultWithID.Result
+	extensionID := resultWithID.ExtensionID
+
+	// Check if result is nil (handler found but returned error)
+	if result == nil {
+		return "", fmt.Errorf("extension %s failed to handle URL", extensionID)
+	}
+
 	// Build response
 	response := map[string]interface{}{
 		"type":         result.Type,

go_backend/extension_providers.go

@@ -1210,19 +1210,32 @@ func (m *ExtensionManager) FindURLHandler(url string) *ExtensionProviderWrapper
 	return nil
 }
 
+// ExtURLHandleResultWithExtID wraps ExtURLHandleResult with extension ID for gomobile compatibility
+type ExtURLHandleResultWithExtID struct {
+	Result      *ExtURLHandleResult
+	ExtensionID string
+}
+
 // HandleURLWithExtension tries to handle a URL with any matching extension
-func (m *ExtensionManager) HandleURLWithExtension(url string) (*ExtURLHandleResult, string, error) {
+// Returns result with extension ID, or error if no handler found
+func (m *ExtensionManager) HandleURLWithExtension(url string) (*ExtURLHandleResultWithExtID, error) {
 	handler := m.FindURLHandler(url)
 	if handler == nil {
-		return nil, "", fmt.Errorf("no extension found to handle URL: %s", url)
+		return nil, fmt.Errorf("no extension found to handle URL: %s", url)
 	}
 
 	result, err := handler.HandleURL(url)
 	if err != nil {
-		return nil, handler.extension.ID, err
+		return &ExtURLHandleResultWithExtID{
+			Result:      nil,
+			ExtensionID: handler.extension.ID,
+		}, err
 	}
 
-	return result, handler.extension.ID, nil
+	return &ExtURLHandleResultWithExtID{
+		Result:      result,
+		ExtensionID: handler.extension.ID,
+	}, nil
 }
 
 // GetPostProcessingProviders returns all extensions that provide post-processing