feat: Claude Code Monitor — lanes, pipelines and a merged workspace

Internal SmartGift build of a Claude Code monitoring dashboard.

Lanes: a durable unit of parallel agent work, one per working directory,
tracked across session restarts. Managed lanes are git worktrees the
dashboard provisions and can reset or remove behind a three-check destroy
guard and a counted preflight; adopted lanes are directories you already
own and are never destroyable.

Pipelines: a lane moves through pipeline stages. A stage the agent declares
with evidence renders green; a stage inferred from the tool-event stream
renders dashed amber and never counts as done. Detection is forward-only
within a 30-minute window, and never writes the declared stage.

Workspace: one page at /run with a lane grid, the selected lane's pipeline,
and a full Claude console behind a disclosure.
This commit is contained in:
2026-07-29 17:07:45 +07:00
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/**
* @file CodeBlock.tsx
* @description Reusable, syntax-highlighted code block with a chrome bar (language pill,
* optional filename, copy-to-clipboard, line count) and optional gutter line numbers.
* Used by MarkdownContent for fenced code blocks and by ToolCallBlock for tool I/O.
* @author Nguyễn Ngọc Trí Vĩ <vinnt@smartgift.vn>
*/
/* =============================================================================
* MODULE_GUIDE — extended in-file reference (comments only; safe to read, never executed)
* =============================================================================
* **Purpose:** Renders Claude transcript rows (user, assistant, tool calls) inside Session Detail with markdown, syntax highlighting, and TUI-style segments.
*
* ## Design constraints
* - Local-first: no telemetry leaves the machine unless the user configures webhooks.
* - Fail-safe hooks path on the server must never block Claude Code; UI mirrors that
* philosophy by degrading gracefully (empty states, stale badges, reconnect loops).
* - Destructive flows stay behind explicit confirmation modals and server-side gates.
* - Internationalization: user-visible strings belong in i18n JSON, not literals here.
*
* ## Remote data & SSH
* Remote Data Sources let operators aggregate multiple machines. SSH entries describe
* how to reach a peer dashboard; the global data scope (`dataScope.ts`) narrows every
* scoped GET via `?sources=`. Health checks and import history surface in Settings.
*
* ## Observability
* Prometheus scrapes `GET /api/metrics` (see `monitoring/`). Grafana ships four
* provisioned boards (overview, sessions, tools, alerts). Native npm scripts and
* Docker Compose profiles are documented in `monitoring/README.md`.
*
* ## Internal dependencies
* - `../../lib/highlight`
*
* ## Public surface
* - `CodeBlock` — exported API; see TSDoc on the symbol for behavior.
*
* ## Testing pointers
* - Prefer colocated `__tests__` with Vitest + Testing Library for UI.
* - Server contract changes require `npm run test:server` and OpenAPI sync.
* - MCP edits: `npm run mcp:typecheck` and `npm run mcp:build`.
*
* ## Related docs
* - `ARCHITECTURE.md` — hooks → API → SQLite → WebSocket → UI pipeline.
* - `docs/API.md` — REST reference.
* - `.claude/skills/file-headers/` — mandatory `@author` header policy.
* ============================================================================= */
/* -----------------------------------------------------------------------------
* EXPORT CATALOG — quick index of symbols defined below (documentation only).
* -----------------------------------------------------------------------------
* **CodeBlock**
* Part of this module's public contract. Downstream imports should treat
* the signature and return type as stable unless release notes say otherwise.
* When behavior changes, update the `@file` overview and relevant tests.
*
* ----------------------------------------------------------------------------- */
import { useMemo, useState } from "react";
import { Check, Copy, FileCode } from "lucide-react";
import { canonicalLang, highlight, tokenClass, type Token } from "../../lib/highlight";
interface CodeBlockProps {
code: string;
lang?: string;
/** Optional filename to display in the chrome bar. */
filename?: string;
/** Render compact (no chrome bar). */
compact?: boolean;
/** Override for the right-side label (e.g. "Output", "Error"). */
label?: string;
/** Tone - "default" matches the surface, "danger" tints red, "success" tints emerald. */
tone?: "default" | "danger" | "success";
/** Cap the rendered height; pass null to disable. Default 24rem. */
maxHeight?: string | null;
/** Show a left gutter with line numbers. Default true for >= 4 lines. */
showLineNumbers?: boolean;
}
const LANG_DISPLAY: Record<string, string> = {
js: "JavaScript",
ts: "TypeScript",
python: "Python",
json: "JSON",
bash: "Shell",
html: "HTML",
css: "CSS",
sql: "SQL",
yaml: "YAML",
diff: "Diff",
plain: "Text",
};
function langDisplay(lang: string): string {
const canon = canonicalLang(lang);
return LANG_DISPLAY[canon] ?? (lang || "Text");
}
/**
* Split tokens that span multiple lines so we can render one line at a time
* (necessary for the gutter line-number column to align).
*/
function splitTokensByLine(tokens: Token[]): Token[][] {
const lines: Token[][] = [[]];
for (const t of tokens) {
const parts = t.text.split("\n");
for (let i = 0; i < parts.length; i++) {
if (i > 0) lines.push([]);
const piece = parts[i]!;
if (piece.length > 0) {
lines[lines.length - 1]!.push({ type: t.type, text: piece });
}
}
}
return lines;
}
export function CodeBlock({
code,
lang = "",
filename,
compact = false,
label,
tone = "default",
maxHeight = "24rem",
showLineNumbers,
}: CodeBlockProps) {
const [copied, setCopied] = useState(false);
const tokens = useMemo(() => highlight(code, lang), [code, lang]);
const lineTokens = useMemo(() => splitTokensByLine(tokens), [tokens]);
const totalLines = lineTokens.length;
const gutter = showLineNumbers ?? totalLines >= 4;
const handleCopy = async () => {
try {
await navigator.clipboard.writeText(code);
setCopied(true);
window.setTimeout(() => setCopied(false), 1500);
} catch {
// Clipboard may be unavailable in some contexts - fail silently.
}
};
const palette =
tone === "danger"
? {
wrapper: "border-red-500/30 bg-red-500/5",
chrome: "bg-red-500/10 border-b border-red-500/20",
label: "text-red-300",
}
: tone === "success"
? {
wrapper: "border-emerald-500/30 bg-emerald-500/5",
chrome: "bg-emerald-500/10 border-b border-emerald-500/20",
label: "text-emerald-300",
}
: {
wrapper: "border-surface-3 bg-surface-4/50",
chrome: "bg-surface-3/70 border-b border-surface-3",
label: "text-gray-400",
};
const preStyle: React.CSSProperties = {};
if (maxHeight) preStyle.maxHeight = maxHeight;
return (
<div
className={`group/code rounded-md border overflow-hidden shadow-[0_1px_0_rgba(255,255,255,0.02)_inset,0_2px_8px_-4px_rgba(0,0,0,0.4)] ${palette.wrapper}`}
>
{!compact && (
<div className={`flex items-center gap-2 px-3 py-1.5 text-[11px] ${palette.chrome}`}>
{/* Language pill */}
<span
className={`inline-flex items-center gap-1 font-mono uppercase tracking-wider ${palette.label}`}
>
{filename ? <FileCode className="w-3 h-3 opacity-70" /> : null}
{filename ?? label ?? langDisplay(lang)}
</span>
{/* Filename + lang together when both are set */}
{filename && !label && (
<span className="text-gray-600 font-mono lowercase">{langDisplay(lang)}</span>
)}
{filename && label && (
<span className={`font-mono uppercase tracking-wider ${palette.label}`}>· {label}</span>
)}
{/* Right side: line count + copy */}
<div className="ml-auto flex items-center gap-3">
{totalLines > 1 && (
<span className="text-gray-600 font-mono">
{totalLines} {totalLines === 1 ? "line" : "lines"}
</span>
)}
<button
type="button"
onClick={handleCopy}
className={`inline-flex items-center gap-1 transition-colors ${
copied ? "text-emerald-300" : "text-gray-500 hover:text-gray-200"
}`}
aria-label="Copy code"
>
{copied ? (
<>
<Check className="w-3 h-3" /> Copied
</>
) : (
<>
<Copy className="w-3 h-3" /> Copy
</>
)}
</button>
</div>
</div>
)}
<div className="overflow-auto" style={preStyle}>
<pre className="font-mono text-[12.5px] leading-[1.6]">
<code>
{gutter ? (
<table className="border-collapse" style={{ width: "max-content", minWidth: "100%" }}>
<tbody>
{lineTokens.map((line, i) => (
<tr key={i} className="align-top">
<td
className="select-none text-right pl-3 pr-3 text-gray-600 font-mono text-[11px] leading-[1.6] sticky left-0 bg-inherit"
style={{ width: "1%", whiteSpace: "nowrap" }}
>
{i + 1}
</td>
<td className="pl-0 pr-3 whitespace-pre">
{line.length === 0 ? (
<span>&nbsp;</span>
) : (
line.map((t, j) => (
<span key={j} className={tokenClass(t.type)}>
{t.text}
</span>
))
)}
</td>
</tr>
))}
</tbody>
</table>
) : (
<div className="px-3 py-2 whitespace-pre">
{tokens.map((t, i) => (
<span key={i} className={tokenClass(t.type)}>
{t.text}
</span>
))}
</div>
)}
</code>
</pre>
</div>
</div>
);
}