package zntg

type Action func()

func (a Action) Err() ActionErr {
	return func() error {
		a()
		return nil
	}
}

type ActionErr func() error

type Actions []ActionErr

func (a Actions) Add(fn Action) Actions {
	return a.AddErr(fn.Err())
}

func (a Actions) AddErr(fn ActionErr) Actions {
	return append(a, fn)
}

func (a Actions) Do() {
	for _, a := range a {
		a()
	}
}

func (a Actions) DoErr() error {
	for _, a := range a {
		if err := a(); err != nil {
			return err
		}
	}
	return nil
}