refac: split the auth handler into registration and login, account verification, and password reset handlers, each with its own dependencies

test/registration_gate_and_verification_email_test.go

@@ -40,22 +40,16 @@ func (s *sequentialHasher) Compare(hashed string, value string) error {
 func newRegistrationGateRouter(userRepo *mockUserRepo, mailRepo *mockMailRepo, publicURL string) *chi.Mux {
 	token := jwtauth.New("HS256", []byte("test-secret"), nil)
 	hasher := &stubHasher{}
-	authHandler := auth.NewHandler(
+	loginHandler := auth.NewLoginHandler(
 		token,
-		useCases.NewGetUserUseCase(userRepo),
-		useCases.NewListUsersUseCase(userRepo),
 		useCases.NewCreateUserUseCase(userRepo, hasher, mailRepo, publicURL),
 		useCases.NewAuthenticateUserUseCase(userRepo, hasher),
-		useCases.NewVerifyUserUseCase(userRepo, hasher),
-		useCases.NewCancelRegistrationUseCase(userRepo),
-		useCases.NewRequestPasswordResetUseCase(userRepo, hasher, mailRepo, publicURL),
-		useCases.NewResetPasswordUseCase(userRepo, hasher),
 		true,
 	)
 
 	r := chi.NewRouter()
 	r.Route("/v1/auth", func(r chi.Router) {
-		r.Post("/register", authHandler.Register)
+		r.Post("/register", loginHandler.Register)
 	})
 	return r
 }