package memory

import "time"

// Item represents an item stored in the cache.
type Item struct {
	Value      interface{}
	Expiration int64
}

// Expired returns true if the item has expired.
func (i *Item) Expired() bool {
	if i.Expiration == 0 {
		return false
	}

	return time.Now().UnixNano() > i.Expiration
}

// NewCache returns a new cache.
func NewCache(opts ...Option) *memCache {
	options := NewOptions(opts...)
	items := make(map[string]Item)

	if len(options.Items) > 0 {
		items = options.Items
	}

	return &memCache{
		opts:  options,
		items: items,
	}
}