package storage

import (
	"src.dualinventive.com/go/lib/kv"
)

// KV is a key-value storage that satisfy the simulator storage
type KV struct {
	deviceUID string
	storage   kv.KV
}

// NewKV create a dinet/kv storage bound onto DeviceUID
func NewKV(deviceUID, KVType, KVParam string) (*KV, error) {
	kvstorage, err := kv.New(KVType, KVParam)
	if err != nil {
		return nil, err
	}
	return &KV{deviceUID: deviceUID, storage: kvstorage}, nil
}

// Set a value for key
func (k *KV) Set(key string, value interface{}) error {
	return k.storage.HSet(k.deviceUID, key, value)
}

// Get a value for key
func (k *KV) Get(key string) (interface{}, error) {
	return k.storage.HGet(k.deviceUID, key)
}

// Del a key/value
func (k *KV) Del(key string) error {
	return k.storage.HDel(k.deviceUID, key)
}