package syncs

import "context"

type options struct {
	ctx         context.Context
	cancel      context.CancelFunc
	preLock     bool
	termOnError bool
}

// GroupOption functional option type
type GroupOption func(o *options)

// Context passes ctx and makes it cancelable
func Context(ctx context.Context) GroupOption {
	return func(o *options) {
		o.ctx, o.cancel = context.WithCancel(ctx)
	}
}

// Preemptive sets locking mode preventing spawning waiting goroutine. May cause Go call to block!
func Preemptive(o *options) {
	o.preLock = true
}

// TermOnErr prevents new goroutines to start after first error
func TermOnErr(o *options) {
	o.termOnError = true
}