package retry

import "time"

// Backoff used for retry sleep backoff
type Backoff interface {
	Next() bool
}

// ConstantBackoff implements Backoff interface with constant sleep time
type ConstantBackoff struct {
	Sleep time.Duration
	Max   int

	tried int
}

func (c ConstantBackoff) Next() bool {
	c.tried++
	if c.tried >= c.Max {
		return false
	}

	time.Sleep(c.Sleep)
	return true
}