first lol

webui/src/App.css

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+#root {
+  max-width: 1280px;
+  margin: 0 auto;
+  padding: 2rem;
+  text-align: center;
+}
+
+.logo {
+  height: 6em;
+  padding: 1.5em;
+  will-change: filter;
+  transition: filter 300ms;
+}
+.logo:hover {
+  filter: drop-shadow(0 0 2em #646cffaa);
+}
+.logo.react:hover {
+  filter: drop-shadow(0 0 2em #61dafbaa);
+}
+
+@keyframes logo-spin {
+  from {
+    transform: rotate(0deg);
+  }
+  to {
+    transform: rotate(360deg);
+  }
+}
+
+@media (prefers-reduced-motion: no-preference) {
+  a:nth-of-type(2) .logo {
+    animation: logo-spin infinite 20s linear;
+  }
+}
+
+.card {
+  padding: 2em;
+}
+
+.read-the-docs {
+  color: #888;
+}

webui/src/App.jsx

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+import { useMemo, useState } from 'react';
+import { useSession } from './context/SessionContext.jsx';
+
+function StatusBadge({ connected, role, mode }) {
+  const color = connected ? 'bg-emerald-500/20 text-emerald-300' : 'bg-red-500/20 text-red-200';
+  return (
+    <div className="flex flex-wrap items-center gap-3 text-sm">
+      <span className={`rounded-full px-3 py-1 font-medium ${color}`}>
+        {connected ? 'Connected' : 'Disconnected'}
+      </span>
+      <span className="rounded-full bg-slate-800/80 px-3 py-1 text-slate-200">
+        Role: {role || 'unknown'}
+      </span>
+      <span className="rounded-full bg-slate-800/80 px-3 py-1 text-slate-200">
+        Mode: {mode || '--'}
+      </span>
+    </div>
+  );
+}
+
+function LogPanel() {
+  const { logs } = useSession();
+  return (
+    <div className="rounded-2xl border border-slate-800 bg-slate-900/70 p-4">
+      <header className="mb-3 flex items-center justify-between">
+        <h2 className="text-lg font-semibold text-white">Server logs</h2>
+        <span className="text-xs uppercase tracking-[0.2em] text-slate-500">
+          {logs.length} entries
+        </span>
+      </header>
+      <div className="h-64 overflow-y-auto rounded-xl bg-slate-950/40 p-3 text-xs font-mono text-slate-300">
+        {logs.length === 0 ? (
+          <p>No logs yet.</p>
+        ) : (
+          logs
+            .slice()
+            .reverse()
+            .map((entry) => (
+              <div key={entry.id} className="mb-2">
+                <span className="text-slate-500">{entry.timestamp}</span>{' '}
+                <span className="text-cyan-300">[{entry.level}]</span>{' '}
+                {entry.label && <span className="text-pink-300">[{entry.label}]</span>}{' '}
+                <span>{entry.message}</span>
+              </div>
+            ))
+        )}
+      </div>
+    </div>
+  );
+}
+
+function RosterPanel() {
+  const { session, requestControl } = useSession();
+  const roster = session?.roster ?? [];
+  const [pending, setPending] = useState({});
+
+  async function handleRequest(roverId) {
+    setPending((prev) => ({ ...prev, [roverId]: true }));
+    try {
+      await requestControl(roverId);
+    } catch (err) {
+      alert(err.message);
+    } finally {
+      setPending((prev) => ({ ...prev, [roverId]: false }));
+    }
+  }
+
+  return (
+    <div className="rounded-2xl border border-slate-800 bg-slate-900/60 p-4">
+      <h2 className="text-lg font-semibold text-white">Rovers</h2>
+      <div className="mt-4 space-y-3">
+        {roster.length === 0 && <p className="text-slate-400">No rovers registered.</p>}
+        {roster.map((rover) => (
+          <div
+            key={rover.id}
+            className="flex flex-wrap items-center justify-between gap-3 rounded-xl bg-slate-950/40 px-4 py-3"
+          >
+            <div>
+              <p className="text-white">{rover.name}</p>
+              <p className="text-xs text-slate-400">Locked: {rover.locked ? 'yes' : 'no'}</p>
+            </div>
+            <button
+              type="button"
+              onClick={() => handleRequest(rover.id)}
+              disabled={pending[rover.id]}
+              className="rounded-full bg-blue-600 px-4 py-1 text-sm font-semibold text-white disabled:opacity-50"
+            >
+              {pending[rover.id] ? 'Requesting…' : 'Request control'}
+            </button>
+          </div>
+        ))}
+      </div>
+    </div>
+  );
+}
+
+function AssignmentCard() {
+  const { session, releaseControl } = useSession();
+  const assignment = session?.assignment;
+  const roverId = assignment?.roverId;
+
+  const [busy, setBusy] = useState(false);
+
+  async function handleRelease() {
+    if (!roverId) return;
+    setBusy(true);
+    try {
+      await releaseControl(roverId);
+    } catch (err) {
+      alert(err.message);
+    } finally {
+      setBusy(false);
+    }
+  }
+
+  return (
+    <div className="rounded-2xl border border-slate-800 bg-slate-900/60 p-4">
+      <h2 className="text-lg font-semibold text-white">Assignment</h2>
+      {roverId ? (
+        <div className="mt-4 space-y-3">
+          <p className="text-slate-300">Currently driving rover {roverId}</p>
+          <button
+            type="button"
+            onClick={handleRelease}
+            disabled={busy}
+            className="rounded-full bg-red-600 px-4 py-1 text-sm font-semibold text-white disabled:opacity-50"
+          >
+            {busy ? 'Releasing…' : 'Release control'}
+          </button>
+        </div>
+      ) : (
+        <div className="mt-4 text-slate-400">
+          <p>Status: {assignment?.status ?? 'not assigned'}</p>
+          {assignment?.queuePosition && (
+            <p>Queue position: {assignment.queuePosition}</p>
+          )}
+        </div>
+      )}
+    </div>
+  );
+}
+
+function SessionInspector() {
+  const { session } = useSession();
+  const formatted = useMemo(() => JSON.stringify(session ?? {}, null, 2), [session]);
+  return (
+    <div className="rounded-2xl border border-slate-800 bg-slate-900/60 p-4">
+      <h2 className="text-lg font-semibold text-white">Session snapshot</h2>
+      <pre className="mt-4 max-h-64 overflow-y-auto text-sm text-teal-200">{formatted}</pre>
+    </div>
+  );
+}
+
+function AuthPanel() {
+  const { login, setRole } = useSession();
+  const [username, setUsername] = useState('');
+  const [password, setPassword] = useState('');
+  const [loading, setLoading] = useState(false);
+
+  async function handleLogin(event) {
+    event.preventDefault();
+    setLoading(true);
+    try {
+      await login(username, password);
+      setUsername('');
+      setPassword('');
+    } catch (err) {
+      alert(err.message);
+    } finally {
+      setLoading(false);
+    }
+  }
+
+  return (
+    <div className="rounded-2xl border border-slate-800 bg-slate-900/60 p-4">
+      <h2 className="text-lg font-semibold text-white">Authentication</h2>
+      <form className="mt-4 flex flex-col gap-3" onSubmit={handleLogin}>
+        <input
+          className="rounded-lg border border-slate-800 bg-slate-950/60 px-3 py-2 text-white"
+          placeholder="Username"
+          value={username}
+          onChange={(e) => setUsername(e.target.value)}
+        />
+        <input
+          className="rounded-lg border border-slate-800 bg-slate-950/60 px-3 py-2 text-white"
+          placeholder="Password"
+          type="password"
+          value={password}
+          onChange={(e) => setPassword(e.target.value)}
+        />
+        <button
+          type="submit"
+          disabled={loading}
+          className="rounded-lg bg-emerald-600 py-2 font-semibold text-white disabled:opacity-50"
+        >
+          {loading ? 'Logging in…' : 'Login as admin'}
+        </button>
+      </form>
+      <div className="mt-4 flex gap-3">
+        <button
+          type="button"
+          onClick={() => setRole('user')}
+          className="rounded-lg border border-slate-700 px-3 py-1 text-sm text-slate-200"
+        >
+          Driver mode
+        </button>
+        <button
+          type="button"
+          onClick={() => setRole('spectator')}
+          className="rounded-lg border border-slate-700 px-3 py-1 text-sm text-slate-200"
+        >
+          Spectator mode
+        </button>
+      </div>
+    </div>
+  );
+}
+
+function App() {
+  const { connected, session } = useSession();
+
+  return (
+    <div className="min-h-screen bg-slate-950 text-slate-50">
+      <main className="mx-auto flex max-w-6xl flex-col gap-6 px-6 py-10">
+        <header className="space-y-4">
+          <h1 className="text-4xl font-semibold text-white">Multi Roomba Rover Console</h1>
+          <StatusBadge connected={connected} role={session?.role} mode={session?.mode} />
+        </header>
+        <section className="grid gap-6 lg:grid-cols-2">
+          <RosterPanel />
+          <AssignmentCard />
+          <AuthPanel />
+          <SessionInspector />
+        </section>
+        <LogPanel />
+      </main>
+    </div>
+  );
+}
+
+export default App;

webui/src/assets/react.svg

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webui/src/context/SessionContext.jsx

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+import { createContext, useCallback, useContext, useEffect, useMemo, useState } from 'react';
+import { useSocket } from './SocketContext.jsx';
+
+const SessionContext = createContext({
+  connected: false,
+  session: null,
+  logs: [],
+  login: async () => {},
+  setRole: async () => {},
+  requestControl: async () => {},
+  releaseControl: async () => {},
+  subscribeAll: async () => {},
+});
+
+function useAckEmitter(socket) {
+  return useCallback(
+    (event, payload = {}) =>
+      new Promise((resolve, reject) => {
+        socket.emit(event, payload, (resp = {}) => {
+          if (resp.error) {
+            reject(new Error(resp.error));
+          } else {
+            resolve(resp);
+          }
+        });
+      }),
+    [socket],
+  );
+}
+
+export function SessionProvider({ children }) {
+  const socket = useSocket();
+  const emitWithAck = useAckEmitter(socket);
+  const [session, setSession] = useState(null);
+  const [logs, setLogs] = useState([]);
+  const [connected, setConnected] = useState(socket.connected);
+
+  useEffect(() => {
+    const onConnect = () => setConnected(true);
+    const onDisconnect = () => setConnected(false);
+    socket.on('connect', onConnect);
+    socket.on('disconnect', onDisconnect);
+    return () => {
+      socket.off('connect', onConnect);
+      socket.off('disconnect', onDisconnect);
+    };
+  }, [socket]);
+
+  useEffect(() => {
+    function handleSession(payload) {
+      setSession(payload);
+    }
+    function handleLogInit(entries = []) {
+      setLogs(entries);
+    }
+    function handleLogEntry(entry) {
+      setLogs((prev) => [...prev.slice(-199), entry]);
+    }
+    socket.on('session:sync', handleSession);
+    socket.on('log:init', handleLogInit);
+    socket.on('log:entry', handleLogEntry);
+    return () => {
+      socket.off('session:sync', handleSession);
+      socket.off('log:init', handleLogInit);
+      socket.off('log:entry', handleLogEntry);
+    };
+  }, [socket]);
+
+  const actions = useMemo(
+    () => ({
+      login: (username, password) => emitWithAck('auth:login', { username, password }),
+      setRole: (role) => emitWithAck('session:setRole', { role }),
+      requestControl: (roverId, options = {}) =>
+        emitWithAck('session:requestControl', { roverId, ...options }),
+      releaseControl: (roverId) => emitWithAck('session:releaseControl', { roverId }),
+      subscribeAll: () => emitWithAck('session:subscribeAll'),
+    }),
+    [emitWithAck],
+  );
+
+  const value = useMemo(
+    () => ({
+      connected,
+      session,
+      logs,
+      ...actions,
+    }),
+    [actions, connected, logs, session],
+  );
+
+  return <SessionContext.Provider value={value}>{children}</SessionContext.Provider>;
+}
+
+export function useSession() {
+  return useContext(SessionContext);
+}

webui/src/context/SocketContext.jsx

@@ -0,0 +1,9 @@
+// src/context/SocketContext.jsx
+import { createContext, useContext } from "react";
+import { socket } from "../lib/socket";
+
+const SocketContext = createContext(socket);
+export const SocketProvider = ({ children }) => (
+  <SocketContext.Provider value={socket}>{children}</SocketContext.Provider>
+);
+export const useSocket = () => useContext(SocketContext);

webui/src/index.css

@@ -0,0 +1,16 @@
+@tailwind base;
+@tailwind components;
+@tailwind utilities;
+
+:root {
+  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI',
+    sans-serif;
+  color: #0f172a;
+  background-color: #f8fafc;
+}
+
+body {
+  margin: 0;
+  min-height: 100vh;
+  background-color: #0f172a;
+}

webui/src/lib/socket.js

@@ -0,0 +1,11 @@
+import { io } from "socket.io-client";
+
+console.log('socket.io client loaded')
+
+const serverUrl = import.meta.env.VITE_ROVERD_URL ?? "http://localhost:8080";
+export const socket = io(serverUrl, {
+  transports: ["websocket"], // skip polling if your backend supports it
+  query: {
+    role: "user"
+  }
+});

webui/src/main.jsx

@@ -0,0 +1,16 @@
+import { StrictMode } from 'react'
+import { createRoot } from 'react-dom/client'
+import './index.css'
+import App from './App.jsx'
+import { SocketProvider } from './context/SocketContext.jsx'
+import { SessionProvider } from './context/SessionContext.jsx'
+
+createRoot(document.getElementById('root')).render(
+  <StrictMode>
+    <SocketProvider>
+      <SessionProvider>
+        <App />
+      </SessionProvider>
+    </SocketProvider>
+  </StrictMode>,
+)