package rediscli

import (
	"fmt"
	"time"

	"github.com/go-redis/redis"
)

var cli *redis.Client

func SetCli(client *redis.Client) {
	cli = client
}

func GetCli() *redis.Client {
	return cli
}

// get key value
func Get(key string) string {
	val, err := cli.Get(key).Result()
	switch {
	case err == redis.Nil:
		fmt.Println("key does not exist")
	case err != nil:
		fmt.Println("Get failed", err)
	case val == "":
		fmt.Println("value is empty")
	}
	return val
}

// set key value
func Set(key string, val string, expiration time.Duration) {
	cli.Set(key, val, expiration)
}

func HSet(key string, field string, val interface{}) {
	cli.HSet(key, field, val)
}

// hget
func HGet(key string, field string) string {
	val, _ := cli.HGet(key, field).Result()
	return val
}

// hget
func HExist(key string, field string) bool {
	val, _ := cli.HExists(key, field).Result()
	return val
}

// hgetall
func HGetAll(key string) map[string]string {
	vals, _ := cli.HGetAll(key).Result()
	return vals
}

// hdel
func HDel(key string, fields ...string) int {
	return int(cli.HDel(key, fields...).Val())
}