Role based home page rendering

ui/src/app.tsx

@@ -8,6 +8,7 @@ import Login from "~/routes/login";
 import Management from "~/routes/management";
 import NotFound from "~/routes/[...404]";
 import Toasts from "~/components/Toasts";
+import { APP_ROLES, hasAnyRole } from "~/auth/roles";
 import { initializeLanguage, useLanguage } from "~/i18n";
 import { sessionAtom } from "~/state/appState";
 import "./app.css";
@@ -52,7 +53,7 @@ function AppShell() {
         <Route path="/login" element={<Login />} />
         <Route
           path="/management"
-          element={session?.roles.includes("admin") ? <Management /> : <Navigate to="/" replace />}
+          element={hasAnyRole(session, [APP_ROLES.admin]) ? <Management /> : <Navigate to="/" replace />}
         />
         <Route path="*" element={<NotFound />} />
         <Route path="/index.html" element={<Navigate to="/" replace />} />

ui/src/auth/roles.ts

@@ -0,0 +1,24 @@
+import type { Session } from "~/state/appState";
+
+export const APP_ROLES = {
+  admin: "admin",
+  lok: "lok",
+} as const;
+
+export type AppRole = (typeof APP_ROLES)[keyof typeof APP_ROLES];
+
+export const hasAnyRole = (session: Session | null, roles: readonly AppRole[]): boolean => {
+  if (!session || roles.length === 0) {
+    return false;
+  }
+
+  return roles.some((role) => session.roles.includes(role));
+};
+
+export const hasAllRoles = (session: Session | null, roles: readonly AppRole[]): boolean => {
+  if (!session || roles.length === 0) {
+    return false;
+  }
+
+  return roles.every((role) => session.roles.includes(role));
+};

ui/src/components/Nav.tsx

@@ -1,5 +1,6 @@
 import { Link, useLocation, useNavigate } from "react-router-dom";
 import { useRecoilState } from "recoil";
+import { APP_ROLES, hasAnyRole } from "~/auth/roles";
 import { sessionAtom } from "~/state/appState";
 import { useLanguage, useT } from "~/i18n";
 
@@ -32,7 +33,7 @@ export default function Nav() {
         <div className="order-2 sm:order-1 flex items-center justify-center sm:justify-start">
           <Link to="/" className={linkClass("/")}>{t("nav.home")}</Link>
           <Link to="/about" className={linkClass("/about")}>{t("nav.about")}</Link>
-          {session?.roles.includes("admin") ? (
+          {hasAnyRole(session, [APP_ROLES.admin]) ? (
             <Link to="/management" className={linkClass("/management")}>{t("nav.management")}</Link>
           ) : null}
         </div>

ui/src/components/RoleGuard.tsx

@@ -0,0 +1,27 @@
+import type { ReactNode } from "react";
+import { useRecoilValue } from "recoil";
+import { sessionAtom } from "~/state/appState";
+import type { AppRole } from "~/auth/roles";
+import { hasAllRoles, hasAnyRole } from "~/auth/roles";
+
+type RoleGuardProps = {
+  roles: readonly AppRole[];
+  match?: "any" | "all";
+  fallback?: ReactNode;
+  children: ReactNode;
+};
+
+export default function RoleGuard({
+  roles,
+  match = "any",
+  fallback = null,
+  children,
+}: RoleGuardProps) {
+  const session = useRecoilValue(sessionAtom);
+
+  const isAllowed = match === "all"
+    ? hasAllRoles(session, roles)
+    : hasAnyRole(session, roles);
+
+  return isAllowed ? <>{children}</> : <>{fallback}</>;
+}

ui/src/routes/index.tsx

@@ -1,5 +1,7 @@
 import { useEffect } from "react";
 import OpenHoursForm from "~/components/OpenHoursForm";
+import RoleGuard from "~/components/RoleGuard";
+import { APP_ROLES } from "~/auth/roles";
 import { useT } from "~/i18n";
 
 export default function Home() {
@@ -14,7 +16,9 @@ export default function Home() {
       <h1 className="text-center">{t("home.heading")}</h1>
       <h2 className="text-center">{t("home.subheading")}</h2>
       <img src="/favicon.svg" alt={t("home.logoAlt")} className="w-28" />
+      <RoleGuard roles={[APP_ROLES.lok]}>
         <OpenHoursForm />
+      </RoleGuard>
     </main>
   );
 }