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import config from "$config";
import { db, g } from "$lib/db";
import ln from "$lib/ln";
import { err, l, warn } from "$lib/logging";
import { mail, templates } from "$lib/mail";
import mqtt from "$lib/mqtt";
import { encryptPayload, publish, serverSecret2 } from "$lib/nostr";
import { emit } from "$lib/sockets";
import { f, fiat, fmt, getUser, link, nada, t } from "$lib/utils";
import { hexToBytes } from "@noble/hashes/utils";
import { finalizeEvent } from "nostr-tools";
import webpush from "web-push";
if (config.vapid) {
webpush.setVapidDetails(
`mailto:${config.support}`,
config.vapid.pk,
config.vapid.sk,
);
}
// LNURL-pay invoices carry the raw metadata array as their memo when the
// payer left no comment, e.g. [["text/plain","Paying [email protected]"],...].
// Receipts should show just the human-readable text.
const printerMemo = (memo) => {
if (typeof memo !== "string" || !memo.startsWith("[")) return memo;
try {
const meta = JSON.parse(memo);
if (Array.isArray(meta)) {
const plain = meta.find((m) => Array.isArray(m) && m[0] === "text/plain");
if (plain) return plain[1];
}
} catch (e) {}
return memo;
};
export const notify = async (p, user, withdrawal) => {
emit(user.id, "payment", p);
let { username } = user;
const { paymentReceived } = t(user);
username = username.replace(/\s/g, "");
try {
if (user.verified && user.notify) {
mail(user, paymentReceived, templates.paymentReceived, {
...t(user),
username,
payment: {
amount: fmt(p.amount),
link: link(p.id),
tip: p.tip ? fmt(p.tip) : undefined,
fiat: f(fiat(p.amount, p.rate), p.currency),
fiatTip: p.tip ? f(fiat(p.tip, p.rate), p.currency) : undefined,
memo: p.memo,
items: p.items?.map((i) => {
return {
quantity: i.quantity,
name: i.name,
total: i.quantity * i.price,
totalFiat: f(i.quantity * i.price, p.currency),
};
}),
},
withdrawal,
});
}
} catch (e) {
err("problem emailing", e.message);
}
const subscriptions = await db.sMembers(`${user.id}:subscriptions`);
const payload = {
title: paymentReceived,
body: `${fmt(p.amount)} ${f(fiat(p.amount, p.rate), p.currency)}`,
url: `/payment/${p.id}`,
};
for (const s of subscriptions) {
webpush
.sendNotification(JSON.parse(s), JSON.stringify(payload))
.catch((e) => {
warn("sub failed", e.message);
db.sRem(`${user.id}:subscriptions`, s);
});
}
if (config.mqtt) {
if (!mqtt.connected) await mqtt.reconnect();
mqtt.publish(
username,
`pay:${p.amount}:${p.tip}:${p.rate}:${p.created}:${p.id}:${printerMemo(p.memo)}:${p.items}`,
{ qos: 1 },
);
}
};
export const nwcNotify = async (p) => {
try {
const user = await getUser(p.uid);
const pubkeys = await db.sMembers(`${user.id}:apps`);
if (pubkeys.length) {
let payment_hash = p.payment_hash || "";
if (!payment_hash && (p.type === "lightning" || p.type === "bolt12")) {
try {
const d = await ln.decode(p.hash);
// bolt11 decodes expose payment_hash, bolt12 invoices
// invoice_payment_hash
payment_hash = d.payment_hash || d.invoice_payment_hash || "";
} catch (e) {}
}
for (const pubkey of pubkeys) {
// The app record may be missing/not-yet-written: a pubkey lands in
// `${uid}:apps` before its `app:<pubkey>` is persisted (creation race when
// adding an NWC connection), or a stale entry outlived its record. Guard
// the lookup — destructuring `notify` off null threw and, since the catch
// wraps the whole loop, aborted notifications for ALL the user's apps.
const app = await g(`app:${pubkey}`);
if (!app?.notify) continue;
l("notifying", pubkey, p.type, p.amount);
const notification = {
type: p.amount > 0 ? "incoming" : "outgoing",
invoice: p.hash,
description: p.memo,
preimage: p.ref,
payment_hash: payment_hash,
amount: Math.abs(p.amount) * 1000,
fees_paid: (parseInt(p.fee) || 0) * 1000,
created_at: Math.round(p.created / 1000),
settled_at: Math.round(p.created / 1000),
};
const payload = JSON.stringify({
notification_type: p.amount > 0 ? "payment_received" : "payment_sent",
notification,
});
// NIP-47: a wallet supporting both schemes publishes each notification
// twice — kind 23196 nip04-encrypted, kind 23197 nip44-encrypted
for (const [scheme, kind] of [
["nip04", 23196],
["nip44_v2", 23197],
] as const) {
const content = await encryptPayload(
scheme,
serverSecret2,
pubkey,
payload,
);
const unsigned = {
content,
tags: [["p", pubkey]],
kind,
created_at: Math.floor(Date.now() / 1000),
};
const event = finalizeEvent(unsigned, hexToBytes(serverSecret2));
publish(event).catch(nada);
}
}
}
} catch (e) {
warn("nwc notification failed", e.message);
}
};
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