package diff

// ExtensionsDiff describes the changes between a pair of sets of specification extensions: https://swagger.io/specification/#specification-extensions
type ExtensionsDiff InterfaceMapDiff

// Empty indicates whether a change was found in this element
func (diff *ExtensionsDiff) Empty() bool {
	return (*InterfaceMapDiff)(diff).Empty()
}

func getExtensionsDiff(config *Config, state *state, extensions1, extensions2 map[string]interface{}) *ExtensionsDiff {
	diff := getExtensionsDiffInternal(config, state, extensions1, extensions2)

	if diff.Empty() {
		return nil
	}

	return (*ExtensionsDiff)(diff)
}

func getExtensionsDiffInternal(config *Config, state *state, extensions1, extensions2 map[string]interface{}) *InterfaceMapDiff {
	return getInterfaceMapDiff(extensions1, extensions2, config.IncludeExtensions)
}