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|
import db from "$db";
import store from "$lib/store";
import { emit } from "$lib/sockets";
import config from "$config";
import { notify } from "$lib/notifications";
import { callWebhook } from "$lib/webhooks";
import { computeConversionFee } from "./conversionFee";
import { sendLiquid } from "$routes/liquid/send";
import ln from "$lib/ln";
import { l, err, warn } from "$lib/logging";
const handlePayment = async msg => {
try {
l("incoming lightning payment", msg.received);
if (!msg.secret) return;
let account, total, user;
const invoice = await db.Invoice.findOne({
where: {
text: msg.request
}
});
if (!invoice)
return warn("received lightning with no invoice", msg.request);
await db.transaction(async transaction => {
const { text: hash, currency, memo, rate, tip, user_id } = invoice;
const amount = parseInt(msg.received) - tip;
if (amount < 0) throw new Error("amount out of range");
account = await db.Account.findOne({
where: {
user_id,
asset: config.liquid.btcasset,
pubkey: null
},
include: {
model: db.User,
as: "user"
},
lock: transaction.LOCK.UPDATE,
transaction
});
({ user } = account);
let preimage = msg.secret;
let payment = await db.Payment.create(
{
account_id: account.id,
user_id,
hash,
memo,
amount,
currency,
preimage,
rate,
received: true,
confirmed: true,
network: "lightning",
tip,
invoice_id: invoice.id
},
{ transaction }
);
total = amount + tip;
invoice.status = "paid";
await invoice.save({ transaction });
await invoice.increment({ received: total }, { transaction });
await account.increment({ balance: total }, { transaction });
// get the # of fee credits you would need to pay off this amount of bitcoin
await account.increment(
{ lightning_credits: computeConversionFee(total) },
{ transaction }
);
await account.reload({ transaction });
await invoice.reload({ transaction });
await payment.save({ transaction });
store.payments.push(msg.request);
payment = payment.get({ plain: true });
payment.account = account.get({ plain: true });
payment.invoice = invoice.get({ plain: true });
callWebhook(invoice, payment);
emit(user.username, "payment", payment);
emit(user.username, "account", payment.account);
notify(user, `Received ${total} SAT`);
l(
"lightning payment received",
user.username,
payment.amount,
payment.tip
);
});
let c = store.convert[msg.request];
if (msg.request && c) {
l(
"lightning detected for conversion request",
msg.request,
c.address,
user.username
);
user.account = account;
try {
sendLiquid({
address: c.address,
amount: total - 100,
user,
limit: total
});
} catch (e) {
err("problem sending liquid payment", e.message, e.stack);
}
}
} catch (e) {
console.log(e);
err("problem receiving lightning payment", e.message);
}
};
const poll = async ln => {
try {
const wait = async i => {
const {
bolt11: request,
pay_index,
status,
msatoshi_received,
payment_preimage: secret
} = await ln.waitanyinvoice(i);
let settled = status === "paid";
let received = parseInt(msatoshi_received / 1000);
await handlePayment({
request,
received,
secret
});
await wait(pay_index);
};
const { invoices } = await ln.listinvoices();
await wait(Math.max(...invoices.map(i => i.pay_index).filter(n => n)));
} catch (e) {
err("problem waiting for c-lightning invoice", e.message);
}
};
poll(ln);
|
