owltide/server/api/subscribe.post.ts

import { readSubscriptions, writeSubscriptions } from "~/server/database";
import { Subscription } from "~/shared/types/account";

export default defineEventHandler(async (event) => {
	const body: { subscription: PushSubscriptionJSON } = await readBody(event);
	const subscriptions = await readSubscriptions();
	const existingIndex = subscriptions.findIndex(
		sub => sub.type === "push" && sub.push.endpoint === body.subscription.endpoint
	);
	const subscription: Subscription = { type: "push", push: body.subscription };
	if (existingIndex !== -1) {
		subscriptions[existingIndex] = subscription;
	} else {
		subscriptions.push(subscription);
	}
	await writeSubscriptions(subscriptions);
	if (existingIndex !== -1) {
		return { message: "Existing subscription refreshed."};
	}
	return { message: "New subscription registered."};
})