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import { emit } from "$lib/sockets";
import config from "$config";
import { notify } from "$lib/notifications";
import { callWebhook } from "$lib/webhooks";
import ln from "$lib/ln";
import { l, err, warn } from "$lib/logging";
import { g, s, db } from "$lib/db";
export async function listenForLightning() {
let {
payment_hash: hash,
bolt11,
pay_index,
status,
msatoshi_received,
payment_preimage: preimage
} = await ln.waitanyinvoice(await g("pay_index"));
await s("pay_index", pay_index);
let received = Math.round(msatoshi_received / 1000);
try {
l("incoming lightning payment", received);
if (!preimage) return;
let invoice = await g(`invoice:${hash}`);
if (!invoice) return warn("received lightning with no invoice", bolt11);
let { currency, memo, rate, tip, uid } = invoice;
let amount = parseInt(received) - tip;
if (amount < 0) throw new Error("amount out of range");
let user = await g(`user:${uid}`);
let payment = {
amount,
created: Date.now(),
currency,
fee: 0,
hash,
memo,
preimage,
rate,
tip,
type: "lightning",
uid
};
invoice.status = "paid";
invoice.received += received;
await s(`invoice:${hash}`, invoice);
let t = async () => {
await db.watch(`balance:${uid}`);
let b = await g(`balance:${uid}`);
b += received;
let m = await db.multi();
await s(`balance:${uid}`, b);
if (!(await m.exec())) t();
};
await t();
payment.invoice = invoice;
await s(`payment:${hash}`, payment);
await db.lPush(`${uid}:payments`, hash);
callWebhook(invoice, payment);
emit(uid, "payment", payment);
notify(user, `Received ${received} SAT`);
l("lightning payment received", user.username, payment.amount, payment.tip);
} catch (e) {
console.log(e);
err("problem receiving lightning payment", e.message);
}
setTimeout(listenForLightning);
}
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