package util

/**
diff map的变更
*/
func DiffMap(oldConfig, newConfig map[string]string) (deleteMap, addMap map[string]string, changeMap map[string][]string) {
	deleteMap = make(map[string]string, 0)
	changeMap = make(map[string][]string, 0)
	addMap = make(map[string]string, 0)
	for key, value := range oldConfig {
		newValue, isExist := newConfig[key]
		if !isExist {
			deleteMap[key] = value
			continue
		}
		if newValue != value {
			changeMap[key] = []string{value, newValue}
		}
	}
	for key, value := range newConfig {
		_, isExist := oldConfig[key]
		if !isExist {
			addMap[key] = value
		}
	}
	return
}