progress

type Bar interface {
	Current() int64
	Completed() bool
	Increment(n int)
	Refill(amount int64)

	NewWorker() Error
	NewWorkerTry() bool
	DeferWorker()
	DeferMain(dropBar bool)

	WaitAll() Error
	Context() context.Context
	Cancel()

	GetBarMPB() *mpb.Bar
}

type ProgressBar interface {
	GetMPB() *mpb.Progress

	GetContext() context.Context
	SetContext(ctx context.Context)

	GetCancel() context.CancelFunc
	SetCancel(cancel context.CancelFunc)

	SetSemaphoreOption(maxSimultaneous int, timeout time.Duration)

	NewBar(parent context.Context, total int64, options ...mpb.BarOption) Bar
	NewBarSimpleETA(name string) Bar
	NewBarSimpleCounter(name string, total int64) Bar
}