package storage

import (
	"time"
)

type Service interface {
	Subscribe(topic string, subscriber Subscriber) error
	Unsubscribe(topic, callback string) error
	Subscribers(topic string) ([]Subscriber, error)
	RemoveExpiredSubscribers() error
	Close() error
}

type Subscriber struct {
	Callback     string
	LeaseSeconds int64
	Secret       string
	Created      time.Time
}