274 lines
10 KiB
TypeScript
274 lines
10 KiB
TypeScript
import { useCallback, useEffect, useMemo, useState } from "react";
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import { Monitor, RefreshCw, X } from "lucide-react";
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import { fetchSystemStats, type SystemStatsResponse } from "../api";
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import "./SystemStatsModal.css";
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interface SystemStatsModalProps {
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isOpen: boolean;
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onClose: () => void;
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projectId?: string;
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}
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function formatBytes(bytes: number): string {
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if (!Number.isFinite(bytes) || bytes < 0) return "—";
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const mb = bytes / (1024 * 1024);
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if (mb < 1024) return `${mb.toFixed(0)} MB`;
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return `${(mb / 1024).toFixed(2)} GB`;
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}
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function toPercent(used: number, total: number): string {
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if (!Number.isFinite(used) || !Number.isFinite(total) || total <= 0) return "—";
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return `${((used / total) * 100).toFixed(1)}%`;
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}
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type Severity = "normal" | "warning" | "critical";
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function heapSeverity(used: number, limit: number): Severity {
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if (limit <= 0) return "normal";
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const pct = used / limit;
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if (pct >= 0.85) return "critical";
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if (pct >= 0.65) return "warning";
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return "normal";
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}
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function rssSeverity(rss: number, totalSystemMem: number): Severity {
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if (totalSystemMem <= 0) return "normal";
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const pct = rss / totalSystemMem;
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if (pct >= 0.5) return "critical";
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if (pct >= 0.25) return "warning";
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return "normal";
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}
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function systemMemSeverity(used: number, total: number): Severity {
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if (total <= 0) return "normal";
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const pct = used / total;
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if (pct >= 0.9) return "critical";
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if (pct >= 0.75) return "warning";
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return "normal";
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}
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function severityClassName(severity: Severity): string {
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if (severity === "critical") return "system-stats-modal__value--critical";
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if (severity === "warning") return "system-stats-modal__value--warning";
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return "";
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}
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/**
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* SystemStatsModal groups dashboard runtime telemetry into five sections:
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* process memory metrics, CPU/load information, host memory usage, task counts
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* by column, and agent state counts.
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*/
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export function SystemStatsModal({ isOpen, onClose, projectId }: SystemStatsModalProps) {
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const [stats, setStats] = useState<SystemStatsResponse | null>(null);
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const [loading, setLoading] = useState(false);
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const [error, setError] = useState<string | null>(null);
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const loadStats = useCallback(async () => {
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setLoading(true);
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try {
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const response = await fetchSystemStats(projectId);
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setStats(response);
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setError(null);
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} catch (err) {
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setError(err instanceof Error ? err.message : "Failed to load system stats");
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} finally {
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setLoading(false);
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}
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}, [projectId]);
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useEffect(() => {
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if (!isOpen) return;
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void loadStats();
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const timer = window.setInterval(() => {
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void loadStats();
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}, 5_000);
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return () => {
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window.clearInterval(timer);
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};
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}, [isOpen, loadStats]);
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useEffect(() => {
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if (!isOpen) return;
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const onKeydown = (event: KeyboardEvent) => {
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if (event.key === "Escape") onClose();
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};
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document.addEventListener("keydown", onKeydown);
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return () => document.removeEventListener("keydown", onKeydown);
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}, [isOpen, onClose]);
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const processRows = useMemo(() => {
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if (!stats) return [];
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const system = stats.systemStats;
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const heapClassName = severityClassName(heapSeverity(system.heapUsed, system.heapLimit));
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const rssClassName = severityClassName(rssSeverity(system.rss, system.systemTotalMem));
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return [
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{ label: "RSS", value: formatBytes(system.rss), detail: toPercent(system.rss, system.systemTotalMem), className: rssClassName },
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{ label: "Heap Used", value: formatBytes(system.heapUsed), detail: `of ${formatBytes(system.heapTotal)}`, className: heapClassName },
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{ label: "Heap Limit", value: formatBytes(system.heapLimit), detail: "V8 limit" },
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{ label: "External", value: formatBytes(system.external) },
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{ label: "Array Buffers", value: formatBytes(system.arrayBuffers) },
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];
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}, [stats]);
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if (!isOpen) return null;
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const system = stats?.systemStats;
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const taskStats = stats?.taskStats;
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const usedSystemMem = system ? system.systemTotalMem - system.systemFreeMem : 0;
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const usedSystemClassName = system
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? severityClassName(systemMemSeverity(usedSystemMem, system.systemTotalMem))
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: "";
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return (
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<div
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className="modal-overlay open"
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role="dialog"
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aria-modal="true"
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aria-labelledby="system-stats-modal-title"
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onClick={(event) => {
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if (event.target === event.currentTarget) onClose();
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}}
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data-testid="system-stats-modal-overlay"
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>
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<div className="modal modal-lg system-stats-modal" data-testid="system-stats-modal">
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<div className="modal-header system-stats-modal__header">
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<h2 id="system-stats-modal-title" className="system-stats-modal__title">
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<Monitor />
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<span>System Stats</span>
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</h2>
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<div className="system-stats-modal__header-actions">
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<button
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type="button"
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className="btn btn-icon"
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onClick={() => void loadStats()}
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title="Refresh"
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aria-label="Refresh system stats"
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>
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<RefreshCw />
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</button>
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<button type="button" className="modal-close" onClick={onClose} aria-label="Close">
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<X />
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</button>
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</div>
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</div>
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{loading && !stats && <div className="system-stats-modal__state">Loading system stats…</div>}
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{error && !stats && (
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<div className="system-stats-modal__state system-stats-modal__state--error" role="alert">
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{error}
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</div>
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)}
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{stats && (
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<div className="system-stats-modal__content">
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<section className="system-stats-modal__section" aria-label="Process stats">
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<h3 className="system-stats-modal__section-title">Process</h3>
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<dl className="system-stats-modal__grid">
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{processRows.map((row) => (
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<div key={row.label} className="system-stats-modal__row">
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<dt>{row.label}</dt>
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<dd>
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<span className={`system-stats-modal__value ${row.className}`.trim()}>{row.value}</span>
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{row.detail ? <span className="system-stats-modal__detail">{row.detail}</span> : null}
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</dd>
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</div>
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))}
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</dl>
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</section>
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<section className="system-stats-modal__section" aria-label="CPU and load stats">
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<h3 className="system-stats-modal__section-title">CPU & Load</h3>
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<dl className="system-stats-modal__grid">
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<div className="system-stats-modal__row">
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<dt>Load Avg</dt>
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<dd>{system?.loadAvg.map((value) => value.toFixed(2)).join(" ") ?? "—"}</dd>
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</div>
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<div className="system-stats-modal__row">
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<dt>Cores</dt>
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<dd>{system?.cpuCount ?? "—"}</dd>
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</div>
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<div className="system-stats-modal__row">
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<dt>Platform</dt>
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<dd>{system?.platform ?? "—"}</dd>
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</div>
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<div className="system-stats-modal__row">
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<dt>Node</dt>
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<dd>{system?.nodeVersion ?? "—"}</dd>
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</div>
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<div className="system-stats-modal__row">
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<dt>PID</dt>
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<dd>{system?.pid ?? "—"}</dd>
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</div>
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</dl>
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</section>
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<section className="system-stats-modal__section" aria-label="System memory stats">
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<h3 className="system-stats-modal__section-title">System</h3>
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<dl className="system-stats-modal__grid">
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<div className="system-stats-modal__row">
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<dt>Memory Used</dt>
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<dd>
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<span className={`system-stats-modal__value ${usedSystemClassName}`.trim()}>
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{system ? formatBytes(usedSystemMem) : "—"}
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</span>
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<span className="system-stats-modal__detail">
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{system ? `${toPercent(usedSystemMem, system.systemTotalMem)} of ${formatBytes(system.systemTotalMem)}` : ""}
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</span>
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</dd>
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</div>
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<div className="system-stats-modal__row">
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<dt>Memory Free</dt>
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<dd>{system ? formatBytes(system.systemFreeMem) : "—"}</dd>
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</div>
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</dl>
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</section>
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<section className="system-stats-modal__section" aria-label="Task stats">
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<h3 className="system-stats-modal__section-title">Tasks</h3>
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<dl className="system-stats-modal__grid">
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<div className="system-stats-modal__row">
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<dt>Total</dt>
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<dd>{taskStats?.total ?? 0}</dd>
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</div>
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{Object.entries(taskStats?.byColumn ?? {}).map(([column, count]) => (
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<div key={column} className="system-stats-modal__row">
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<dt>{column}</dt>
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<dd>{count}</dd>
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</div>
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))}
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</dl>
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</section>
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<section className="system-stats-modal__section" aria-label="Agent stats">
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<h3 className="system-stats-modal__section-title">Agents</h3>
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<dl className="system-stats-modal__grid">
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<div className="system-stats-modal__row">
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<dt>idle</dt>
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<dd>{taskStats?.agents.idle ?? 0}</dd>
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</div>
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<div className="system-stats-modal__row">
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<dt>active</dt>
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<dd>{taskStats?.agents.active ?? 0}</dd>
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</div>
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<div className="system-stats-modal__row">
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<dt>running</dt>
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<dd>{taskStats?.agents.running ?? 0}</dd>
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</div>
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<div className="system-stats-modal__row">
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<dt>error</dt>
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<dd>{taskStats?.agents.error ?? 0}</dd>
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</div>
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</dl>
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</section>
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</div>
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)}
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{error && stats && <div className="system-stats-modal__footer-error">Latest refresh failed: {error}</div>}
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</div>
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</div>
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);
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}
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