feat: redirect to register page if no users exist

fixes #130

internal/route/route.go

@@ -102,6 +102,7 @@ func NewRouter(dbConnection *sqlx.DB, emailConfig utils.EmailConfig, securityCon
 		mux.Mount("/uploads/", http.StripPrefix("/uploads/", imgServer))
 		mux.Post("/auth/confirm", taskcafeHandler.ConfirmUser)
 		mux.Post("/auth/register", taskcafeHandler.RegisterUser)
+		mux.Get("/settings", taskcafeHandler.PublicSettings)
 	})
 	auth := AuthenticationMiddleware{*repository}
 	r.Group(func(mux chi.Router) {

internal/route/settings.go

@@ -0,0 +1,23 @@
+package route
+
+import (
+	"encoding/json"
+	"net/http"
+
+	log "github.com/sirupsen/logrus"
+)
+
+type PublicSettingsResponse struct {
+	IsConfigured            bool `json:"isConfigured"`
+	AllowPublicRegistration bool `json:"allowPublicRegistration"`
+}
+
+func (h *TaskcafeHandler) PublicSettings(w http.ResponseWriter, r *http.Request) {
+	userExists, err := h.repo.HasAnyUser(r.Context())
+	if err != nil {
+		log.WithError(err).Error("issue checking if user accounts exist")
+		w.WriteHeader(http.StatusInternalServerError)
+		return
+	}
+	json.NewEncoder(w).Encode(PublicSettingsResponse{IsConfigured: userExists, AllowPublicRegistration: false})
+}