//
// cache.go
// Copyright (C) 2022 tiglog <me@tiglog.com>
//
// Distributed under terms of the MIT license.
//

package gcache

import (
	"sync"
	"time"

	"github.com/go-redis/redis/v8"
)

type Engine struct {
	client ICacheAdapter
}

var once sync.Once

var engine *Engine

func New(adapter ICacheAdapter) *Engine {
	once.Do(func() {
		engine = &Engine{
			client: adapter,
		}
	})
	return engine
}

func NewWithRedis(rds *redis.Client) *Engine {
	once.Do(func() {
		engine = &Engine{
			client: NewRedisCacheAdapter(rds),
		}
	})
	return engine
}

func (e *Engine) Get(key string, dest interface{}) error {
	return e.client.Get(key, dest)
}

func (e *Engine) Set(key string, val interface{}, ttl time.Duration) error {
	return e.client.Set(key, val, ttl)
}

func (e *Engine) Has(key string) bool {
	return e.client.Has(key)
}

func (e *Engine) Del(keys ...string) (int64, error) {
	return e.client.Del(keys...)
}