service

type CatFactFinder interface {
	FindCatFact(ctx context.Context) (facts.Topic, error)
}

type DogFactFinder interface {
	FindDogFact(ctx context.Context) (facts.Topic, error)
}

type EntertainmentFactFinder interface {
	FindEntertainmentFact(ctx context.Context) (facts.Topic, error)
}

type FactSVC struct {
	CFinder CatFactFinder
	DFinder DogFactFinder
	EFinder EntertainmentFactFinder
	TFinder TrivialFactFinder
}

type TrivialFactFinder interface {
	FindTrivialFact(ctx context.Context) (facts.Topic, error)
}