kurz/domain/domain.go

package domain

var shortURLRepository ShortURLRepository
var targetURLRepository TargetURLRepository

func GetTargetURL(shortURL string) (string, error) {
	return "", nil
}

func GetShortURL(targetURL string) (string, error) {
	return "", nil
}

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

type TargetURLRepository interface {
	GetShort(tu TargetURL) (ShortURL, error)
	GetByShort(su ShortURL) (TargetURL, error)
}

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