kurz/domain/domain_spi.go

package domain

var shortURLRepository ShortURLRepository
var targetURLRepository TargetURLRepository

type ShortURLRepository interface {
	GetTarget(su ShortURL) (TargetURL, error)
}

/*
TargetURLRepository is the interface infrastructure needs to implement to
provide the domain with access to Target URLs.
*/
type TargetURLRepository interface {

	/*
		GetShort returns the ShortURL for a given TargetURL.
		In the results, isNew will be true if the ShortURL was created for this occasion.
	*/
	GetShort(tu TargetURL) (su ShortURL, isNew bool, err error)
}

func RegisterRepositories(sur ShortURLRepository, tur TargetURLRepository) {
	shortURLRepository = sur
	targetURLRepository = tur
}