Set up react-router

src/components/main/Root.tsx

@@ -1,4 +1,4 @@
-import React, { useState, useEffect } from "react";
+import React, { useState, useEffect, useContext } from "react";
 import { LineChart, Line, CartesianGrid, XAxis, YAxis } from "recharts";
 import { format, addDays } from "date-fns";
 import { Dashboard } from "@/components/main/routes/Dashboard";
@@ -7,10 +7,68 @@ import {
   persistStorage,
 } from "@/components/main/lib/state";
 import { mergeDeepRight } from "ramda";
-import { createBrowserRouter, RouterProvider } from "react-router-dom";
+import {
+  createBrowserRouter,
+  RouterProvider,
+  useNavigate,
+  useMatches,
+} from "react-router-dom";
+import * as reactRouter from "react-router-dom";
 
 const STORAGE_KEY = "ecoplanet";
 
+const routes = {
+  dashboard: {
+    id: "Dashboard",
+    path: "/",
+  },
+  options: {
+    id: "Options",
+    path: "/options",
+  },
+};
+
+const Navigation = function ({ router }) {
+  const navigate = useNavigate();
+  const matches = useMatches();
+
+  const onUpdateRoute = (routePath: string) => {
+    navigate(routePath);
+  };
+
+  const activeRouteId = matches[0]?.id;
+
+  return (
+    <nav>
+      <ul className="flex mb-4 space-x-3">
+        {/*
+         * Ideally we would not map over the routes object, as object items are sorted by the runtime,
+         * so they might not represent the data from the source code!
+         * But for this use-case this is enough.
+         */}
+        {Object.entries(routes).map(([key, route]) => {
+          const id = route.id;
+          const className = id === activeRouteId ? "font-bold" : "";
+          return (
+            <li className={className}>
+              <button onClick={() => onUpdateRoute(route.path)}>{id}</button>
+            </li>
+          );
+        })}
+      </ul>
+    </nav>
+  );
+};
+
+const Base = function ({ children }) {
+  return (
+    <div className="flex flex-col grow items-center justify-center h-full w-full bg-muted">
+      <Navigation />
+      {children}
+    </div>
+  );
+};
+
 const App: React.FC = () => {
   const [state, setState] = useState(loadStorageOrDefault);
 
@@ -24,22 +82,27 @@ const App: React.FC = () => {
 
   const router = createBrowserRouter([
     {
-      path: "/",
-      element: <Dashboard state={state} updateState={updateState} />,
+      ...routes.dashboard,
+      element: (
+        <Base id="Dashboard">
+          <Dashboard state={state} updateState={updateState} />
+        </Base>
+      ),
     },
     {
-      path: "/options",
-      element: <div>Hello world!</div>,
+      ...routes.options,
+      element: (
+        <Base id="Dashboard">
+          <div>Hello world!</div>,
+        </Base>
+      ),
     },
   ]);
 
   return (
     <div className="fixed top-0 right-0 bottom-0 left-0 flex">
       <main className="flex grow flex-col">
-        <nav className="flex p-3 border-b border-solid border-slate-300"></nav>
-        <div className="flex grow items-center justify-center h-full w-full bg-muted">
-          <RouterProvider router={router} />
-        </div>
+        <RouterProvider router={router} />
       </main>
     </div>
   );