package service

type options struct {
	capacity     int32
	onInit       OnInit
	onStop       OnStop
	onNotifyStop OnNotifyStop
	canStop      CanStop
}

type OnInit func(IService) bool

type OnStop func(IService)

type OnNotifyStop func(IService)

type CanStop func(IService) bool

func defaultOnInit(_ IService) bool {
	return true
}

func defaultOnStop(_ IService) {

}

func defaultOnNotifyStop(_ IService) {

}

type Option func(*options)

func SetCapacity(capacity int32) Option {
	return func(op *options) {
		if capacity <= 0 {
			capacity = 256
		}
		op.capacity = capacity
	}
}

func SetOnInit(onInit OnInit) Option {
	return func(op *options) {
		op.onInit = onInit
	}
}

func SetOnStop(onStop OnStop) Option {
	return func(op *options) {
		op.onStop = onStop
	}
}

func SetOnNotifyStop(onNotifyStop OnNotifyStop) Option {
	return func(op *options) {
		op.onNotifyStop = onNotifyStop
	}
}

func SetCanStop(canStop CanStop) Option {
	return func(op *options) {
		op.canStop = canStop
	}
}