Add webapp skeletons

matrixgw_frontend/src/App.tsx

@@ -1,3 +1,61 @@
-export function App(): React.ReactElement {
-  return <>hello world</>;
+import React from "react";
+import {
+  createBrowserRouter,
+  createRoutesFromElements,
+  Route,
+  RouterProvider,
+} from "react-router";
+import { AuthApi } from "./api/AuthApi";
+import { ServerApi } from "./api/ServerApi";
+import { LoginRoute } from "./routes/auth/LoginRoute";
+import { OIDCCbRoute } from "./routes/auth/OIDCCbRoute";
+import { HomeRoute } from "./routes/HomeRoute";
+import { NotFoundRoute } from "./routes/NotFoundRoute";
+import { BaseAuthenticatedPage } from "./widgets/BaseAuthenticatedPage";
+import { BaseLoginPage } from "./widgets/auth/BaseLoginPage";
+
+interface AuthContext {
+  signedIn: boolean;
+  setSignedIn: (signedIn: boolean) => void;
+}
+
+const AuthContextK = React.createContext<AuthContext | null>(null);
+
+export function App(): React.ReactElement {
+  const [signedIn, setSignedIn] = React.useState(AuthApi.SignedIn);
+
+  const context: AuthContext = {
+    signedIn: signedIn,
+    setSignedIn: (s) => {
+      setSignedIn(s);
+      location.reload();
+    },
+  };
+
+  const router = createBrowserRouter(
+    createRoutesFromElements(
+      signedIn || ServerApi.Config.auth_disabled ? (
+        <Route path="*" element={<BaseAuthenticatedPage />}>
+          <Route path="" element={<HomeRoute />} />
+          <Route path="*" element={<NotFoundRoute />} />
+        </Route>
+      ) : (
+        <Route path="*" element={<BaseLoginPage />}>
+          <Route path="" element={<LoginRoute />} />
+          <Route path="oidc_cb" element={<OIDCCbRoute />} />
+          <Route path="*" element={<NotFoundRoute />} />
+        </Route>
+      )
+    )
+  );
+
+  return (
+    <AuthContextK value={context}>
+      <RouterProvider router={router} />
+    </AuthContextK>
+  );
+}
+
+export function useAuth(): AuthContext {
+  return React.use(AuthContextK)!;
 }