106 lines
4.6 KiB
TypeScript
106 lines
4.6 KiB
TypeScript
import webPush, { type PushSubscription } from "web-push";
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import type { Language } from "@/lib/i18n";
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import { formatProvinceName } from "@/lib/provinces";
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import type { WeatherBrief } from "@/lib/weather-brief";
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import type { WeatherWarning } from "@/types/imgw";
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import type { WarningPushSubscription } from "@/types/notifications";
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const VAPID_PUBLIC_KEY = process.env.WEB_PUSH_VAPID_PUBLIC_KEY;
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const VAPID_PRIVATE_KEY = process.env.WEB_PUSH_VAPID_PRIVATE_KEY;
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const VAPID_SUBJECT = process.env.WEB_PUSH_VAPID_SUBJECT ?? "mailto:alerts@wtr.local";
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let configured = false;
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export function getVapidPublicKey() {
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return VAPID_PUBLIC_KEY ?? null;
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}
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export function isWebPushConfigured() {
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return Boolean(VAPID_PUBLIC_KEY && VAPID_PRIVATE_KEY);
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}
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function ensureWebPushConfigured() {
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if (!VAPID_PUBLIC_KEY || !VAPID_PRIVATE_KEY) throw new Error("Web Push VAPID keys are not configured.");
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if (!configured) {
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webPush.setVapidDetails(VAPID_SUBJECT, VAPID_PUBLIC_KEY, VAPID_PRIVATE_KEY);
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configured = true;
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}
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}
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function getWarningLevelLabel(warning: WeatherWarning, language: Language) {
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if (warning.level === null) return language === "pl" ? "stopień nieokreślony" : "level not specified";
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return language === "pl" ? `stopień ${warning.level}` : `level ${warning.level}`;
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}
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function formatWarningValidity(warning: WeatherWarning, language: Language) {
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if (!warning.validFrom && !warning.validTo) return null;
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const locale = language === "pl" ? "pl-PL" : "en-GB";
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const formatter = new Intl.DateTimeFormat(locale, {
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day: "2-digit",
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month: "2-digit",
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hour: "2-digit",
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minute: "2-digit",
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});
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const from = warning.validFrom ? formatter.format(new Date(warning.validFrom)) : null;
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const to = warning.validTo ? formatter.format(new Date(warning.validTo)) : null;
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if (from && to) return language === "pl" ? `od ${from} do ${to}` : `from ${from} to ${to}`;
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if (from) return language === "pl" ? `od ${from}` : `from ${from}`;
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return language === "pl" ? `do ${to}` : `until ${to}`;
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}
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function buildWarningPayload(preference: WarningPushSubscription, warning: WeatherWarning) {
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const region = preference.province ? formatProvinceName(preference.province, preference.language) : preference.locationName ?? "wtr.";
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const title = warning.title || (preference.language === "pl" ? "Ostrzeżenie meteorologiczne" : "Weather warning");
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const validity = formatWarningValidity(warning, preference.language);
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const level = getWarningLevelLabel(warning, preference.language);
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const bodyParts = preference.language === "pl"
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? [`${region}: ${level}`, validity, warning.probability !== null ? `prawdopodobieństwo ${warning.probability}%` : null]
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: [`${region}: ${level}`, validity, warning.probability !== null ? `${warning.probability}% probability` : null];
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return {
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title: `IMGW: ${title}`,
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body: bodyParts.filter(Boolean).join(" · "),
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url: "/warnings",
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warningId: warning.id,
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};
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}
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export async function sendWarningNotification(preference: WarningPushSubscription, warning: WeatherWarning) {
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ensureWebPushConfigured();
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const payload = JSON.stringify(buildWarningPayload(preference, warning));
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await webPush.sendNotification(preference.subscription as PushSubscription, payload);
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}
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export async function sendTestNotification(preference: WarningPushSubscription) {
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ensureWebPushConfigured();
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const location = preference.province ? formatProvinceName(preference.province, preference.language) : preference.locationName ?? "Open-Meteo";
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const payload = JSON.stringify({
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title: preference.language === "pl" ? "wtr.: test powiadomień" : "wtr.: notification test",
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body: preference.language === "pl"
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? `Powiadomienia są aktywne dla: ${location}.`
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: `Notifications are active for: ${location}.`,
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url: "/settings",
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});
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await webPush.sendNotification(preference.subscription as PushSubscription, payload);
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}
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export async function sendMorningBriefNotification(preference: WarningPushSubscription, brief: WeatherBrief) {
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ensureWebPushConfigured();
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const payload = JSON.stringify({
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title: preference.language === "pl" ? "wtr.: brief dnia" : "wtr.: daily brief",
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body: brief.pushBody,
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url: "/",
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});
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await webPush.sendNotification(preference.subscription as PushSubscription, payload);
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}
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export async function sendTomorrowBriefNotification(preference: WarningPushSubscription, brief: WeatherBrief) {
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ensureWebPushConfigured();
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const payload = JSON.stringify({
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title: preference.language === "pl" ? "wtr.: jutro" : "wtr.: tomorrow",
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body: brief.pushBody,
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url: "/",
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});
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await webPush.sendNotification(preference.subscription as PushSubscription, payload);
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}
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