96 lines
3.5 KiB
JavaScript
96 lines
3.5 KiB
JavaScript
'use strict';
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const { app, BrowserWindow, ipcMain } = require('electron');
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const path = require('path');
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const os = require('os');
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const { execSync } = require('child_process');
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// ── ウィンドウ作成 ──────────────────────────────────────────────
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function createWindow() {
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const win = new BrowserWindow({
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width: 1920,
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height: 1080,
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fullscreen: process.env.KIOSK === '1', // KIOSK=1 で全画面起動
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backgroundColor: '#0C1221',
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autoHideMenuBar: true,
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webPreferences: {
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preload: path.join(__dirname, 'preload.js'),
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contextIsolation: true, // セキュリティ必須
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nodeIntegration: false, // セキュリティ必須
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},
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});
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// Design B（バイナリ雨オーロラ背景）をメインとして起動
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// Design A に切り替えたい場合: DESIGN=a npm start
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const design = process.env.DESIGN === 'a' ? 'station.html' : 'station-b.html';
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win.loadFile(path.join(__dirname, 'renderer', design));
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}
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app.whenReady().then(createWindow);
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app.on('window-all-closed', () => { if (process.platform !== 'darwin') app.quit(); });
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// ── CPU サンプリング（100ms 2回測定） ──────────────────────────
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function getCpuSample() {
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return os.cpus().map(c => {
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const total = Object.values(c.times).reduce((a, b) => a + b, 0);
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return { total, idle: c.times.idle };
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});
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}
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// ── システムメトリクス取得 IPC ─────────────────────────────────
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ipcMain.handle('get-metrics', async () => {
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const s1 = getCpuSample();
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await new Promise(r => setTimeout(r, 100));
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const s2 = getCpuSample();
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const cpuPct = s1.reduce((sum, c1, i) => {
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const c2 = s2[i];
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const dIdle = c2.idle - c1.idle;
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const dTotal = c2.total - c1.total;
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return sum + (dTotal > 0 ? (1 - dIdle / dTotal) * 100 : 0);
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}, 0) / s1.length;
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const mem = os.freemem();
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const total = os.totalmem();
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let disk = null;
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try {
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const dfOut = execSync('df -B1 / 2>/dev/null', { timeout: 2000 }).toString();
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const parts = dfOut.trim().split('\n')[1].split(/\s+/);
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disk = {
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total_gb: Math.round(parseInt(parts[1]) / 1e9 * 10) / 10,
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used_gb: Math.round(parseInt(parts[2]) / 1e9 * 10) / 10,
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use_pct: Math.round(parseInt(parts[2]) / parseInt(parts[1]) * 100),
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};
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} catch (_) {}
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return {
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ok: true,
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hostname: os.hostname(),
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uptime_s: Math.floor(os.uptime()),
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cpu_pct: Math.round(cpuPct),
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cpu_count: os.cpus().length,
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load_avg: os.loadavg().map(l => Math.round(l * 100) / 100),
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mem_used_mb: Math.round((total - mem) / 1024 / 1024),
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mem_total_mb: Math.round(total / 1024 / 1024),
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disk,
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active_sessions: 0,
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node_version: process.version,
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platform: os.platform(),
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timestamp: new Date().toISOString(),
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};
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});
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// ── サービス死活チェック IPC ───────────────────────────────────
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ipcMain.handle('check-service', async (_event, url) => {
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const t0 = Date.now();
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try {
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const ctrl = new AbortController();
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const timer = setTimeout(() => ctrl.abort(), 5000);
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const r = await fetch(url, { method: 'HEAD', signal: ctrl.signal });
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clearTimeout(timer);
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return { ok: true, status: r.status, latency_ms: Date.now() - t0 };
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} catch (e) {
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return { ok: false, error: e.message, latency_ms: Date.now() - t0 };
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}
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});
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