func validateTargetNamespaces()

in tooling/mcerepkg/internal/rukpak/convert/registryv1.go [158:179]

• 22 lines of code
• 12 McCabe index (conditional complexity)

func validateTargetNamespaces(supportedInstallModes sets.Set[string], installNamespace string, targetNamespaces []string) error {
	set := sets.New[string](targetNamespaces...)
	switch {
	case set.Len() == 0 || (set.Len() == 1 && set.Has("")):
		if supportedInstallModes.Has(string(v1alpha1.InstallModeTypeAllNamespaces)) {
			return nil
		}
		return fmt.Errorf("supported install modes %v do not support targeting all namespaces", sets.List(supportedInstallModes))
	case set.Len() == 1 && !set.Has(""):
		if supportedInstallModes.Has(string(v1alpha1.InstallModeTypeSingleNamespace)) {
			return nil
		}
		if supportedInstallModes.Has(string(v1alpha1.InstallModeTypeOwnNamespace)) && targetNamespaces[0] == installNamespace {
			return nil
		}
	default:
		if supportedInstallModes.Has(string(v1alpha1.InstallModeTypeMultiNamespace)) && !set.Has("") {
			return nil
		}
	}
	return fmt.Errorf("supported install modes %v do not support target namespaces %v", sets.List[string](supportedInstallModes), targetNamespaces)
}