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CI / Notify (push) Successful in 2s
Zakladatel skupiny může na stránce objednání vložit sdílecí odkaz Bolt Food. Server pak každou minutu dotazuje veřejné Bolt API a automaticky aktualizuje čas doručení skupiny (deliveryAt). Sledování se samo ukončí po doručení, zrušení objednávky nebo opakovaných chybách. Leader lease vytažena do znovupoužitelného modulu leaderLease.ts. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
176 lines
6.2 KiB
TypeScript
176 lines
6.2 KiB
TypeScript
import webpush from 'web-push';
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import crypto from 'crypto';
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import getStorage from './storage';
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import { createLeaderLease } from './leaderLease';
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import { getClientData, getToday } from './service';
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import { getIsWeekend } from './utils';
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import { LunchChoices } from '../../types';
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const storage = getStorage();
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const REGISTRY_KEY = 'push_reminder_registry';
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const lease = createLeaderLease('luncher:reminder:leader');
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const POD_ID = process.env.POD_ID ?? `local-${process.pid}`;
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interface RegistryEntry {
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time: string;
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subscription: webpush.PushSubscription;
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}
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type Registry = Record<string, RegistryEntry>;
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/** Mapa login → timestamp (ms) posledního odeslání připomínky. */
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const lastReminded = new Map<string, number>();
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const REMINDER_COOLDOWN_MS = 60 * 60 * 1000; // 60 minut mezi připomínkami
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let reminderInterval: ReturnType<typeof setInterval> | undefined;
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function getCurrentTimeHHMM(): string {
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const now = new Date();
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return `${String(now.getHours()).padStart(2, '0')}:${String(now.getMinutes()).padStart(2, '0')}`;
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}
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/** Zjistí, zda má uživatel zvolenou nějakou možnost stravování. */
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function userHasChoice(choices: LunchChoices, login: string): boolean {
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for (const locationKey of Object.keys(choices)) {
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const locationChoices = choices[locationKey as keyof LunchChoices];
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if (locationChoices && login in locationChoices) {
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return true;
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}
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}
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return false;
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}
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/** Uvolní leader lease při graceful shutdown. */
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export async function releaseReminderLease(): Promise<void> {
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await lease.release();
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}
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/** Stopne scheduler připomínek. Volá se při graceful shutdown. */
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export function stopReminderScheduler(): void {
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if (reminderInterval) {
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clearInterval(reminderInterval);
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reminderInterval = undefined;
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}
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}
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/** Přidá nebo aktualizuje push subscription pro uživatele. */
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export async function subscribePush(login: string, subscription: webpush.PushSubscription, reminderTime: string): Promise<void> {
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await storage.updateData<Registry>(REGISTRY_KEY, (current) => {
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const registry = current ?? {};
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registry[login] = { time: reminderTime, subscription };
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return registry;
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});
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console.log(`Push reminder: uživatel ${login} přihlášen k připomínkám v ${reminderTime}`);
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}
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/** Odebere push subscription pro uživatele. */
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export async function unsubscribePush(login: string): Promise<void> {
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await storage.updateData<Registry>(REGISTRY_KEY, (current) => {
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const registry = current ?? {};
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delete registry[login];
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return registry;
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});
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lastReminded.delete(login);
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console.log(`Push reminder: uživatel ${login} odhlášen z připomínek`);
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}
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/** Vrátí veřejný VAPID klíč. */
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export function getVapidPublicKey(): string | undefined {
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return process.env.VAPID_PUBLIC_KEY;
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}
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function generateQuickChoiceToken(login: string): string {
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const today = new Date().toISOString().slice(0, 10);
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const secret = process.env.JWT_SECRET ?? '';
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return crypto.createHmac('sha256', secret).update(`${login}:${today}`).digest('hex');
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}
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/** Ověří jednorázový token z push notifikace. */
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export function verifyQuickChoiceToken(login: string, token: string): boolean {
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if (!login || !token || token.length !== 64) return false;
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const expected = generateQuickChoiceToken(login);
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return crypto.timingSafeEqual(Buffer.from(expected, 'hex'), Buffer.from(token, 'hex'));
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}
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/** Zkontroluje a odešle připomínky uživatelům, kteří si nezvolili oběd. */
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async function checkAndSendReminders(): Promise<void> {
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if (getIsWeekend(getToday())) return;
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// Leader election — pouze jeden pod spouští připomínky
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const isLeader = await lease.tryAcquireOrRenew();
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if (!isLeader) return;
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const registry = await storage.getData<Registry>(REGISTRY_KEY) ?? {};
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const entries = Object.entries(registry);
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if (entries.length === 0) return;
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const currentTime = getCurrentTimeHHMM();
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let clientData;
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try {
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clientData = await getClientData(getToday());
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} catch (e) {
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console.error('Push reminder: chyba při získávání dat', e);
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return;
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}
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const expiredLogins: string[] = [];
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for (const [login, entry] of entries) {
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if (currentTime < entry.time) continue;
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const last = lastReminded.get(login) ?? 0;
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if (Date.now() - last < REMINDER_COOLDOWN_MS) continue;
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if (clientData.choices && userHasChoice(clientData.choices, login)) continue;
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try {
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await webpush.sendNotification(
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entry.subscription,
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JSON.stringify({
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title: 'Luncher',
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body: 'Ještě nemáte zvolený oběd!',
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login,
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token: generateQuickChoiceToken(login),
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})
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);
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lastReminded.set(login, Date.now());
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console.log(`Push reminder: odeslána připomínka uživateli ${login}`);
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} catch (error: any) {
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if (error.statusCode === 410 || error.statusCode === 404) {
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console.log(`Push reminder: subscription uživatele ${login} expirovala, odebírám`);
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expiredLogins.push(login);
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} else {
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console.error(`Push reminder: chyba při odesílání notifikace uživateli ${login}:`, error);
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}
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}
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}
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if (expiredLogins.length > 0) {
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await storage.updateData<Registry>(REGISTRY_KEY, (current) => {
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const r = current ?? {};
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for (const login of expiredLogins) delete r[login];
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return r;
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});
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}
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}
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/** Spustí scheduler pro kontrolu a odesílání připomínek každou minutu. */
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export function startReminderScheduler(): void {
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const publicKey = process.env.VAPID_PUBLIC_KEY;
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const privateKey = process.env.VAPID_PRIVATE_KEY;
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const subject = process.env.VAPID_SUBJECT;
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if (!publicKey || !privateKey || !subject) {
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console.log('Push reminder: VAPID klíče nejsou nastaveny, scheduler nebude spuštěn');
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return;
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}
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webpush.setVapidDetails(subject, publicKey, privateKey);
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reminderInterval = setInterval(checkAndSendReminders, 60_000);
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console.log(`Push reminder: scheduler spuštěn (POD_ID=${POD_ID})`);
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}
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