feat(serial-console): add SerialConsolePage component with WebSocket support

package.json

@@ -52,6 +52,8 @@
     "@types/parallax-js": "^3.1.3",
     "@types/react-syntax-highlighter": "^15.5.13",
     "@uiw/react-codemirror": "^4.25.10",
+    "@xterm/addon-fit": "^0.11.0",
+    "@xterm/xterm": "^6.0.0",
     "canvas-confetti": "1.9.4",
     "class-variance-authority": "0.7.1",
     "clsx": "2.1.1",

src/app/App.tsx

@@ -1,5 +1,5 @@
 import { lazy, Suspense, useEffect, useState } from 'react';
-import { Cpu, Settings, Wifi, Network, HardDrive, Activity, Search, Wrench, User, LogOut, Bell, FileText, AppWindow, Folder, Edit, Eye, Database, Upload, Download, Code2, LayoutList, Image, ChevronLeft, Loader2, Terminal, Link, Printer, Maximize2, Minimize2 } from 'lucide-react';
+import { Cpu, Settings, Wifi, Network, HardDrive, Activity, Search, Wrench, User, LogOut, Bell, FileText, AppWindow, Folder, Edit, Eye, Database, Upload, Download, Code2, LayoutList, Image, ChevronLeft, Loader2, Terminal, Link, Printer, Maximize2, Minimize2, Info } from 'lucide-react';
 import { Toaster, toast } from 'sonner';
 import StatusPage               from './components/StatusPage';
 import DevicesPage              from './components/DevicesPage';
@@ -17,7 +17,9 @@ import { WsProvider } from './ws';
 // Three.js lives only in RealityOverridePage — keep lazy so it doesn't load on startup.
 // CodeMirror/syntax-highlighter/ReactMarkdown live in MediaViewerEditor — lazy-loaded
 // inside MediaManager when the user first opens a file to view or edit.
+// xterm.js lives only in SerialConsolePage — keep lazy.
 const RealityOverridePage = lazy(() => import('./components/RealityOverridePage'));
+const SerialConsolePage   = lazy(() => import('./components/SerialConsolePage'));
 
 type Page = 'status' | 'devices' | 'iec' | 'network' | 'general' | 'tools' | 'apps' | AppId;
 
@@ -176,7 +178,7 @@ export default function App() {
       config={config}
       setConfig={setConfig}
     />,
-    'serial-console':          <AppPage title="Serial Console"          onBack={() => setCurrentPage('apps')} />,
+    'serial-console':          <SerialConsolePage onBack={() => setCurrentPage('apps')} />,
     'directory-editor':        <AppPage title="Directory Editor"        onBack={() => setCurrentPage('apps')} />,
     'sector-editor':           <AppPage title="Sector Editor"           onBack={() => setCurrentPage('apps')} />,
     'bam-editor':              <AppPage title="BAM Editor"              onBack={() => setCurrentPage('apps')} />,
@@ -273,7 +275,7 @@ function AppPage({ title, onBack }: { title: string; onBack: () => void }) {
                     className="w-full px-4 py-2 text-left hover:bg-neutral-50 flex items-center gap-2"
                   >
                     <Settings className="w-4 h-4 text-[#4d4d4d]" />
-                    Settings
+                    Preferences
                   </button>
                   <button
                     onClick={() => setShowProfileMenu(false)}
@@ -289,6 +291,13 @@ function AppPage({ title, onBack }: { title: string; onBack: () => void }) {
                     <FileText className="w-4 h-4 text-[#4d4d4d]" />
                     Documentation
                   </button>
+                  <button
+                    onClick={() => setShowProfileMenu(false)}
+                    className="w-full px-4 py-2 text-left hover:bg-neutral-50 flex items-center gap-2"
+                  >
+                    <Info className="w-4 h-4 text-[#4d4d4d]" />
+                    About Meatloaf
+                  </button>
                   <div className="border-t border-neutral-200 my-2" />
                   <button
                     onClick={() => setShowProfileMenu(false)}

src/app/components/SerialConsolePage.tsx

@@ -0,0 +1,190 @@
+import { useEffect, useRef, useState } from 'react';
+import { Terminal } from '@xterm/xterm';
+import { FitAddon } from '@xterm/addon-fit';
+import '@xterm/xterm/css/xterm.css';
+import { ChevronLeft, Plug, Radio, RotateCcw, Unplug } from 'lucide-react';
+
+interface Props { onBack: () => void; }
+
+type ConnStatus = 'disconnected' | 'connecting' | 'connected' | 'error';
+
+export default function SerialConsolePage({ onBack }: Props) {
+  const containerRef = useRef<HTMLDivElement>(null);
+  const termRef      = useRef<Terminal | null>(null);
+  const fitRef       = useRef<FitAddon | null>(null);
+  const wsRef        = useRef<WebSocket | null>(null);
+  const [status, setStatus] = useState<ConnStatus>('disconnected');
+
+  // Initialize xterm on mount
+  useEffect(() => {
+    const el = containerRef.current;
+    if (!el) return;
+
+    const term = new Terminal({
+      cursorBlink: true,
+      fontSize: 14,
+      fontFamily: '"Cascadia Code","Fira Code",Menlo,Monaco,"Courier New",monospace',
+      theme: {
+        background:          '#0a0a0a',
+        foreground:          '#d4d4d4',
+        cursor:              '#d4d4d4',
+        selectionBackground: '#264f78',
+      },
+      scrollback: 5000,
+      convertEol: true,
+    });
+
+    const fit = new FitAddon();
+    term.loadAddon(fit);
+    term.open(el);
+    fit.fit();
+    termRef.current = term;
+    fitRef.current  = fit;
+
+    term.writeln('\x1b[2m── Meatloaf Serial Console ──\x1b[0m');
+    term.writeln('\x1b[2mPress Connect to open a session.\x1b[0m');
+    term.writeln('');
+
+    term.onData((data) => {
+      if (wsRef.current?.readyState === WebSocket.OPEN) wsRef.current.send(data);
+    });
+
+    const onResize = () => fitRef.current?.fit();
+    window.addEventListener('resize', onResize);
+
+    return () => {
+      window.removeEventListener('resize', onResize);
+      term.dispose();
+      termRef.current = null;
+      fitRef.current  = null;
+    };
+  }, []);
+
+  // Close WebSocket on unmount
+  useEffect(() => {
+    return () => {
+      if (wsRef.current) {
+        wsRef.current.onopen = wsRef.current.onmessage = wsRef.current.onerror = wsRef.current.onclose = null;
+        wsRef.current.close();
+        wsRef.current = null;
+      }
+    };
+  }, []);
+
+  const writeln = (msg: string) => termRef.current?.writeln(msg);
+
+  const connect = () => {
+    if (wsRef.current) {
+      wsRef.current.onopen = wsRef.current.onmessage = wsRef.current.onerror = wsRef.current.onclose = null;
+      wsRef.current.close();
+      wsRef.current = null;
+    }
+
+    const url = `ws://${window.location.hostname}/console`;
+    setStatus('connecting');
+    writeln(`\x1b[2mConnecting to ${url}…\x1b[0m`);
+
+    const ws = new WebSocket(url);
+    ws.binaryType = 'arraybuffer';
+    wsRef.current = ws;
+
+    ws.onopen = () => {
+      setStatus('connected');
+      writeln('\x1b[32mConnected.\x1b[0m');
+    };
+
+    ws.onmessage = (ev) => {
+      if (!termRef.current) return;
+      if (ev.data instanceof ArrayBuffer) termRef.current.write(new Uint8Array(ev.data));
+      else termRef.current.write(String(ev.data));
+    };
+
+    let hadError = false;
+    ws.onerror = () => {
+      hadError = true;
+      writeln('\x1b[31mConnection error.\x1b[0m');
+    };
+
+    ws.onclose = (ev) => {
+      setStatus(hadError ? 'error' : 'disconnected');
+      wsRef.current = null;
+      if (!hadError) writeln(`\x1b[2mSession ended${ev.reason ? `: ${ev.reason}` : ''}.\x1b[0m`);
+    };
+  };
+
+  const disconnect = () => {
+    if (wsRef.current) {
+      wsRef.current.onopen = wsRef.current.onmessage = wsRef.current.onerror = wsRef.current.onclose = null;
+      wsRef.current.close();
+      wsRef.current = null;
+    }
+    setStatus('disconnected');
+    writeln('\x1b[2mDisconnected.\x1b[0m');
+  };
+
+  const busy = status === 'connecting' || status === 'connected';
+
+  const statusColor =
+    status === 'connected'  ? 'text-green-400'   :
+    status === 'connecting' ? 'text-amber-400'   :
+    status === 'error'      ? 'text-red-400'     : 'text-neutral-500';
+
+  const statusLabel =
+    status === 'connected'  ? 'Connected'   :
+    status === 'connecting' ? 'Connecting…' :
+    status === 'error'      ? 'Error'       : 'Disconnected';
+
+  return (
+    <div className="fixed inset-0 bg-[#0a0a0a] z-40 flex flex-col">
+
+      {/* Header */}
+      <div
+        className="flex-none flex items-center gap-2 px-3 py-2 bg-neutral-900 border-b border-neutral-800"
+        style={{ paddingTop: 'max(0.5rem, env(safe-area-inset-top))' }}
+      >
+        <button
+          onClick={() => { disconnect(); onBack(); }}
+          className="p-1.5 rounded hover:bg-neutral-800 text-neutral-400 hover:text-white transition"
+          title="Back"
+        >
+          <ChevronLeft className="w-5 h-5" />
+        </button>
+
+        <span className="text-sm font-medium text-neutral-200">Serial Console</span>
+        <div className="flex-1" />
+
+        <div className={`flex items-center gap-1.5 text-xs ${statusColor}`}>
+          <Radio className="w-3.5 h-3.5" />
+          <span className="hidden sm:inline">{statusLabel}</span>
+        </div>
+
+        <button
+          onClick={() => termRef.current?.clear()}
+          className="p-1.5 rounded hover:bg-neutral-800 text-neutral-400 hover:text-neutral-200 transition"
+          title="Clear terminal"
+        >
+          <RotateCcw className="w-4 h-4" />
+        </button>
+
+        <button
+          onClick={busy ? disconnect : connect}
+          className={`flex items-center gap-1.5 px-3 py-1 rounded text-xs font-medium transition ${
+            busy
+              ? 'bg-red-900/60 hover:bg-red-800 text-red-300'
+              : 'bg-green-900/60 hover:bg-green-800 text-green-300'
+          }`}
+        >
+          {busy ? <Unplug className="w-3.5 h-3.5" /> : <Plug className="w-3.5 h-3.5" />}
+          <span>{busy ? 'Disconnect' : 'Connect'}</span>
+        </button>
+      </div>
+
+      {/* Terminal */}
+      <div
+        ref={containerRef}
+        className="flex-1 min-h-0"
+        style={{ paddingBottom: 'env(safe-area-inset-bottom)' }}
+      />
+    </div>
+  );
+}