package cachemdl

import (
	"time"
)

const (
	// TypeFastCache indicates fast cache as cache storage
	TypeFastCache = iota + 1
	// TypeRedisCache indicates redis server as cache storage. Use this in grid mode.
	TypeRedisCache
)

// Cacher provides access to underlying cache, make sure all caches implement these methods.
//
// The return types of data can be different. Ex. In case of redis cache it is `string`. The caller needs to handle this with the help of Type() method.
//
// Ex.
// (Cacher{}).Type() == TypeRedisCache { // your implementation }
type Cacher interface {
	// SET
	Set(key string, val interface{})
	SetWithExpiration(key string, val interface{}, exp time.Duration)
	SetNoExpiration(key string, val interface{})

	// GET
	Get(key string) (interface{}, bool)
	GetAll() map[string]interface{}

	// DELETE
	Delete(key string)
	Purge()

	// GetItemsCount
	GetItemsCount() int

	Type() int
}