Add dashboard Hermes console UI

This commit is contained in:
Shannon Sands 2026-07-01 09:45:40 +10:00 committed by kshitij
parent 4493bba901
commit f7d90edd8b
4 changed files with 769 additions and 3 deletions

View file

@ -0,0 +1,538 @@
import { useCallback, useEffect, useRef, useState } from "react";
import { createPortal } from "react-dom";
import { FitAddon } from "@xterm/addon-fit";
import { Unicode11Addon } from "@xterm/addon-unicode11";
import { WebLinksAddon } from "@xterm/addon-web-links";
import { Terminal as XtermTerminal } from "@xterm/xterm";
import "@xterm/xterm/css/xterm.css";
import { Terminal, X } from "lucide-react";
import { Badge } from "@nous-research/ui/ui/components/badge";
import { Button } from "@nous-research/ui/ui/components/button";
import { useModalBehavior } from "@/hooks/useModalBehavior";
import { useProfileScope } from "@/contexts/useProfileScope";
import { api } from "@/lib/api";
import { cn, themedBody } from "@/lib/utils";
import { useTheme } from "@/themes";
type ConsoleFrame =
| {
type: "ready";
context?: string;
profile?: string;
prompt?: string;
}
| {
type: "output";
data?: string;
stream?: string;
}
| {
type: "error";
message?: string;
}
| {
type: "confirm_required";
command?: string;
message?: string;
prompt?: string;
}
| {
type: "complete";
status?: string;
prompt?: string;
}
| {
type: "clear";
}
| {
type: "pong";
};
type ConnectionState = "connecting" | "ready" | "running" | "closed" | "error";
interface HermesConsoleModalProps {
open: boolean;
onClose: () => void;
}
function buildTerminalTheme(background: string, foreground: string) {
return {
background,
foreground,
cursor: foreground,
cursorAccent: background,
selectionBackground: "rgba(255, 255, 255, 0.25)",
black: "#000000",
red: "#ff5f67",
green: "#5fffb0",
yellow: "#ffd166",
blue: "#7aa2ff",
magenta: "#d597ff",
cyan: "#58e6ff",
white: foreground,
brightBlack: "#666666",
brightRed: "#ff8b90",
brightGreen: "#8dffc8",
brightYellow: "#ffe08a",
brightBlue: "#9dbaff",
brightMagenta: "#e4b7ff",
brightCyan: "#8ef0ff",
brightWhite: "#ffffff",
};
}
function normalizeTerminalText(text: string): string {
return text.replace(/\r?\n/g, "\r\n");
}
function writeLine(term: XtermTerminal, text = ""): void {
term.write(`${normalizeTerminalText(text)}\r\n`);
}
function writeBlock(term: XtermTerminal, text: string): void {
const normalized = normalizeTerminalText(text);
term.write(normalized.endsWith("\r\n") ? normalized : `${normalized}\r\n`);
}
function isPrintable(data: string): boolean {
return data >= " " || data === "\t";
}
export function HermesConsoleModal({ open, onClose }: HermesConsoleModalProps) {
const modalRef = useModalBehavior({ open, onClose });
const hostRef = useRef<HTMLDivElement | null>(null);
const termRef = useRef<XtermTerminal | null>(null);
const wsRef = useRef<WebSocket | null>(null);
const lineRef = useRef("");
const promptRef = useRef("hermes> ");
const inputPromptRef = useRef("hermes> ");
const historyRef = useRef<string[]>([]);
const historyIndexRef = useRef<number | null>(null);
const activeCommandRef = useRef(false);
const pendingCommandRef = useRef<string | null>(null);
const hasReadyFrameRef = useRef(false);
const [connectionState, setConnectionState] =
useState<ConnectionState>("connecting");
const [consoleContext, setConsoleContext] = useState("pending");
const [consoleProfile, setConsoleProfile] = useState("current");
const { profile } = useProfileScope();
const { theme } = useTheme();
const redrawInput = useCallback((line = lineRef.current) => {
const term = termRef.current;
if (!term) return;
lineRef.current = line;
term.write(`\r\x1b[2K${inputPromptRef.current}${line}`);
}, []);
const showPrompt = useCallback(() => {
const term = termRef.current;
if (!term) return;
lineRef.current = "";
historyIndexRef.current = null;
inputPromptRef.current = promptRef.current;
term.write(inputPromptRef.current);
}, []);
const sendFrame = useCallback((payload: Record<string, unknown>) => {
const ws = wsRef.current;
if (!ws || ws.readyState !== WebSocket.OPEN) return false;
ws.send(JSON.stringify(payload));
return true;
}, []);
const cancelCommand = useCallback(() => {
pendingCommandRef.current = null;
activeCommandRef.current = false;
sendFrame({ type: "cancel" });
}, [sendFrame]);
const submitLine = useCallback(
(rawLine: string) => {
const term = termRef.current;
if (!term) return;
const line = rawLine.trim();
term.write("\r\n");
lineRef.current = "";
historyIndexRef.current = null;
const pending = pendingCommandRef.current;
if (pending) {
const answer = line.toLowerCase();
if (answer === "y" || answer === "yes") {
pendingCommandRef.current = null;
activeCommandRef.current = true;
setConnectionState("running");
sendFrame({ type: "confirm", command: pending });
return;
}
cancelCommand();
return;
}
if (!line) {
showPrompt();
return;
}
historyRef.current = [...historyRef.current, line].slice(-200);
activeCommandRef.current = true;
setConnectionState("running");
if (!sendFrame({ type: "input", line })) {
activeCommandRef.current = false;
writeLine(term, "\x1b[31mConsole is not connected.\x1b[0m");
showPrompt();
}
},
[cancelCommand, sendFrame, showPrompt],
);
const recallHistory = useCallback(
(direction: -1 | 1) => {
const history = historyRef.current;
if (!history.length) return;
const current = historyIndexRef.current;
if (current === null) {
if (direction > 0) return;
historyIndexRef.current = history.length - 1;
} else {
const next = current + direction;
if (next < 0) historyIndexRef.current = 0;
else if (next >= history.length) {
historyIndexRef.current = null;
redrawInput("");
return;
} else {
historyIndexRef.current = next;
}
}
const idx = historyIndexRef.current;
redrawInput(idx === null ? "" : history[idx] ?? "");
},
[redrawInput],
);
const handleInputData = useCallback(
(data: string) => {
const term = termRef.current;
if (!term) return;
if (data === "\x1b[A") {
recallHistory(-1);
return;
}
if (data === "\x1b[B") {
recallHistory(1);
return;
}
for (const ch of data) {
if (ch === "\u0003") {
term.write("^C\r\n");
if (activeCommandRef.current || pendingCommandRef.current) {
cancelCommand();
} else {
showPrompt();
}
continue;
}
if (ch === "\u000c") {
term.clear();
showPrompt();
continue;
}
if (activeCommandRef.current) {
term.write("\x07");
continue;
}
if (ch === "\r" || ch === "\n") {
submitLine(lineRef.current);
continue;
}
if (ch === "\u007f" || ch === "\b") {
if (lineRef.current.length > 0) {
lineRef.current = lineRef.current.slice(0, -1);
term.write("\b \b");
}
continue;
}
if (ch === "\x1b") {
continue;
}
if (isPrintable(ch)) {
lineRef.current += ch;
term.write(ch);
}
}
},
[cancelCommand, recallHistory, showPrompt, submitLine],
);
const handleFrame = useCallback(
(frame: ConsoleFrame) => {
const term = termRef.current;
if (!term) return;
if (frame.type === "ready") {
const nextPrompt = frame.prompt || "hermes> ";
promptRef.current = nextPrompt;
inputPromptRef.current = nextPrompt;
hasReadyFrameRef.current = true;
setConsoleContext(frame.context || "local");
setConsoleProfile(frame.profile || "current");
activeCommandRef.current = false;
setConnectionState("ready");
term.clear();
showPrompt();
return;
}
if (frame.type === "output") {
if (frame.data) writeBlock(term, frame.data);
return;
}
if (frame.type === "error") {
writeLine(term, `\x1b[31m${frame.message || "Command failed."}\x1b[0m`);
return;
}
if (frame.type === "confirm_required") {
pendingCommandRef.current = frame.command || "";
activeCommandRef.current = false;
setConnectionState("ready");
if (frame.message) {
writeLine(term, `\x1b[33m${frame.message}\x1b[0m`);
}
inputPromptRef.current = "Confirm? [y/N] ";
lineRef.current = "";
term.write(inputPromptRef.current);
return;
}
if (frame.type === "complete") {
activeCommandRef.current = false;
if (frame.prompt) promptRef.current = frame.prompt;
if (frame.status === "confirm_required") return;
if (frame.status === "exit") {
setConnectionState("closed");
wsRef.current?.close();
return;
}
if (frame.status === "timeout") {
writeLine(term, "\x1b[31mCommand timed out.\x1b[0m");
}
if (frame.status === "cancelled") {
writeLine(term, "\x1b[33mCancelled.\x1b[0m");
}
pendingCommandRef.current = null;
setConnectionState("ready");
showPrompt();
return;
}
if (frame.type === "clear") {
term.clear();
showPrompt();
}
},
[showPrompt],
);
useEffect(() => {
if (!open) return;
const host = hostRef.current;
if (!host) return;
let cancelled = false;
let resizeFrame = 0;
const term = new XtermTerminal({
allowProposedApi: true,
cursorBlink: true,
fontFamily:
"'JetBrains Mono', 'Cascadia Mono', 'Fira Code', 'MesloLGS NF', 'Source Code Pro', Menlo, Consolas, 'DejaVu Sans Mono', monospace",
fontSize: 13,
lineHeight: 1.25,
letterSpacing: 0,
macOptionIsMeta: true,
scrollback: 3000,
theme: buildTerminalTheme(
theme.terminalBackground ?? "#000000",
theme.terminalForeground ?? "#f0e6d2",
),
});
termRef.current = term;
const fit = new FitAddon();
term.loadAddon(fit);
const unicode11 = new Unicode11Addon();
term.loadAddon(unicode11);
term.unicode.activeVersion = "11";
term.loadAddon(new WebLinksAddon());
term.open(host);
term.focus();
const fitTerminal = () => {
if (!host.isConnected || host.clientWidth <= 0 || host.clientHeight <= 0) {
return;
}
try {
fit.fit();
} catch {
/* fit can fail while the modal is closing */
}
};
const scheduleFit = () => {
if (resizeFrame) return;
resizeFrame = requestAnimationFrame(() => {
resizeFrame = 0;
fitTerminal();
});
};
const ro = new ResizeObserver(scheduleFit);
ro.observe(host);
scheduleFit();
const dataDisposable = term.onData(handleInputData);
setConnectionState("connecting");
setConsoleContext("pending");
setConsoleProfile(profile || "current");
hasReadyFrameRef.current = false;
writeLine(term, "\x1b[2mConnecting to Hermes Console...\x1b[0m");
void (async () => {
try {
const params = profile ? { profile } : undefined;
const url = await api.buildWsUrl("/api/console", params);
if (cancelled) return;
const ws = new WebSocket(url);
wsRef.current = ws;
ws.onopen = () => {
setConnectionState("connecting");
};
ws.onmessage = (ev) => {
try {
const frame = JSON.parse(String(ev.data)) as ConsoleFrame;
handleFrame(frame);
} catch {
writeLine(term, "\x1b[31mMalformed console frame.\x1b[0m");
}
};
ws.onerror = () => {
setConnectionState("error");
writeLine(term, "\x1b[31mConsole websocket error.\x1b[0m");
};
ws.onclose = (ev) => {
wsRef.current = null;
activeCommandRef.current = false;
pendingCommandRef.current = null;
if (cancelled) return;
setConnectionState(ev.code === 1000 ? "closed" : "error");
const reason = ev.reason ? ` ${ev.reason}` : "";
const message =
ev.code === 1006 && !hasReadyFrameRef.current
? "Console connection failed before the server handshake. Check that this dashboard is connected to a backend with /api/console."
: `Console closed (${ev.code}).${reason}`;
writeLine(term, `\x1b[31m${message}\x1b[0m`);
};
} catch (err) {
if (cancelled) return;
setConnectionState("error");
writeLine(term, `\x1b[31mConsole unavailable: ${err}\x1b[0m`);
}
})();
return () => {
cancelled = true;
dataDisposable.dispose();
ro.disconnect();
if (resizeFrame) cancelAnimationFrame(resizeFrame);
wsRef.current?.close();
wsRef.current = null;
term.dispose();
termRef.current = null;
lineRef.current = "";
pendingCommandRef.current = null;
activeCommandRef.current = false;
hasReadyFrameRef.current = false;
};
}, [handleFrame, handleInputData, open, profile, theme]);
useEffect(() => {
if (!open) return;
const term = termRef.current;
if (!term) return;
term.options.theme = buildTerminalTheme(
theme.terminalBackground ?? "#000000",
theme.terminalForeground ?? "#f0e6d2",
);
}, [open, theme]);
if (!open) return null;
const statusTone =
connectionState === "ready"
? "success"
: connectionState === "running"
? "warning"
: connectionState === "connecting"
? "secondary"
: "destructive";
return createPortal(
<div
ref={modalRef}
className="fixed inset-0 z-[100] flex items-center justify-center bg-background/85 p-3 sm:p-4"
onClick={(event) => event.target === event.currentTarget && onClose()}
role="dialog"
aria-modal="true"
aria-labelledby="hermes-console-title"
>
<div
className={cn(
themedBody,
"relative flex h-[min(82dvh,760px)] w-full max-w-5xl flex-col border border-border bg-card shadow-2xl",
)}
>
<header className="flex min-h-14 items-center gap-3 border-b border-border px-4 py-3">
<div className="flex h-9 w-9 items-center justify-center border border-border bg-background/60 text-primary">
<Terminal className="h-4 w-4" />
</div>
<div className="min-w-0 flex-1">
<h2
id="hermes-console-title"
className="font-mondwest text-display text-base tracking-wider"
>
Hermes Console
</h2>
<div className="mt-1 flex flex-wrap items-center gap-2 text-xs text-muted-foreground">
<Badge tone={statusTone}>{connectionState}</Badge>
<span className="font-mono">{consoleContext}</span>
<span className="font-mono">{consoleProfile}</span>
</div>
</div>
<Button
ghost
size="icon"
onClick={onClose}
className="text-muted-foreground hover:text-foreground"
aria-label="Close console"
>
<X />
</Button>
</header>
<div className="min-h-0 flex-1 bg-black">
<div
ref={hostRef}
className="h-full min-h-0 w-full overflow-hidden p-2 [&_.xterm]:h-full [&_.xterm-viewport]:!bg-transparent"
/>
</div>
</div>
</div>,
document.body,
);
}

View file

@ -42,6 +42,7 @@ import { useConfirmDelete } from "@nous-research/ui/hooks/use-confirm-delete";
import { ConfirmDialog } from "@nous-research/ui/ui/components/confirm-dialog";
import { useModalBehavior } from "@/hooks/useModalBehavior";
import { DeleteConfirmDialog } from "@/components/DeleteConfirmDialog";
import { HermesConsoleModal } from "@/components/HermesConsoleModal";
import { cn, themedBody } from "@/lib/utils";
import { api } from "@/lib/api";
import type {
@ -186,6 +187,7 @@ export default function SystemPage() {
const [loading, setLoading] = useState(true);
const [activeAction, setActiveAction] = useState<string | null>(null);
const [consoleOpen, setConsoleOpen] = useState(false);
// Add-credential form.
const [credProvider, setCredProvider] = useState("openrouter");
@ -680,6 +682,10 @@ export default function SystemPage() {
description="Remove this hook from config and revoke its consent? It stops firing on the next restart."
loading={hookDelete.isDeleting}
/>
<HermesConsoleModal
open={consoleOpen}
onClose={() => setConsoleOpen(false)}
/>
{/* Create-hook modal */}
{hookModalOpen && (
@ -1162,6 +1168,9 @@ export default function SystemPage() {
</H2>
<Card>
<CardContent className="flex flex-wrap gap-2 py-4">
<Button size="sm" ghost prefix={<Terminal className="h-3.5 w-3.5" />} onClick={() => setConsoleOpen(true)}>
Open console
</Button>
<Button size="sm" ghost prefix={<Stethoscope className="h-3.5 w-3.5" />} onClick={() => runOp(api.runDoctor, "Doctor")}>
Run doctor
</Button>