package timewheel

import "time"

var tw = New(time.Second, 3600)

func init() {
	tw.Start()
}

// Delay executes job after waiting the given duration
func Delay(duration time.Duration, key string, job func()) {
	tw.AddJob(duration, key, job)
}

// At executes job at given time
func At(at time.Time, key string, job func()) {
	tw.AddJob(at.Sub(time.Now()), key, job)
}

// Cancel stops a pending job
func Cancel(key string) {
	tw.RemoveJob(key)
}