package funky

type Maybe[V any] interface {
	IsNothing() bool
	Value() V
}

type maybe[V any] struct {
	isNothing bool
	value     V
}

func Nothing[V any]() Maybe[V] {
	return &maybe[V]{isNothing: true}
}

func Just[V any](v V) Maybe[V] {
	return &maybe[V]{false, v}
}

func (m *maybe[V]) IsNothing() bool {
	return m.isNothing
}

func (m *maybe[V]) Value() V {
	return m.value
}