ddd

type Aggregate[T any, ID any] interface {
	Root() Entity[T, ID]
}

type AggregateRoot interface {
}

type DomainEvent[T any, ID any] interface {

	// SameEventAs return true if the given domain event and this event are regarded as being the same event.
	SameEventAs(other T) bool

	ID() ID
	Kind() string
	When() time.Time
}

type Entity[T any, ID any] interface {

	// SameIdentityAs return true if the identities are the same, regardless of other attributes.
	SameIdentityAs(other T) bool

	// Identity return the identity of this entity.
	Identity() ID
}

type EventDescriptor struct {
	ID         int64
	Body       string
	OccurredAt time.Time
	Kind       string
}

type ValueObject[T any] interface {

	// SameValueAs return ture if the given value object's and this value object's attributes are the same.
	SameValueAs(other T) bool

	// Copy return A safe, deep copy of this value object.
	Copy() T
}