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import config from "$config";
import store from "$lib/store";
import { emit } from "$lib/sockets";
import { v4 } from "uuid";
import { notify } from "$lib/notifications";
import { db, g, s, t } from "$lib/db";
import { l, err } from "$lib/logging";
import { fail } from "$lib/utils";
import { callWebhook } from "$lib/webhooks";
export const types = {
internal: "internal",
bitcoin: "bitcoin",
lightning: "lightning",
pot: "pot",
classic: "classic"
};
export let debit = async (
hash,
amount,
fee = 0,
memo,
user,
type = types.internal,
id = v4()
) => {
let ref;
let invoice = await g(`invoice:${hash}`);
if (invoice) ref = invoice.uid;
let { id: uid, currency, username } = user;
amount = parseInt(amount);
if (!amount || amount < 0) fail("Amount must be greater than zero");
let ourfee = [types.bitcoin, types.lightning].includes(type)
? Math.round(amount * config.fee)
: 0;
await t(`balance:${uid}`, async (balance, db) => {
await t(`credit:${type}:${uid}`, async (credit, db) => {
let covered = Math.min(credit, ourfee) || 0;
ourfee -= covered;
if (balance < amount + ourfee) fail("Insufficient funds");
await db
.multi()
.decrBy(`credit:${type}:${uid}`, covered)
.exec();
});
await db
.multi()
.decrBy(`balance:${uid}`, amount + (ourfee - credit))
.exec();
});
let p = {
id,
amount: -amount,
fee,
ourfee,
memo,
uid,
confirmed: true,
rate: store.rates[currency],
currency,
type,
ref,
created: Date.now()
};
await s(`payment:${id}`, p);
await db.lPush(`${uid}:payments`, id);
l("sent", type, user.username, amount);
emit(user.id, "payment", p);
return p;
};
export let credit = async (hash, amount, memo, ref, type = types.internal) => {
amount = parseInt(amount);
let invoice = await g(`invoice:${hash}`);
if (!invoice) return;
if (!memo) ({ memo } = invoice);
let user = await g(`user:${invoice.uid}`);
let { id: uid, currency, username } = user;
let p = {
hash,
amount,
uid,
rate: store.rates[currency],
currency,
memo,
ref,
type,
confirmed: true,
created: Date.now()
};
let { tip } = invoice;
if (tip) {
p.tip = tip;
p.amount -= tip;
}
invoice.received += amount;
let balance = "balance";
if (type === types.bitcoin) {
let [txid, vout] = ref.split(":").slice(-2);
p.id = `${txid}:${vout}`;
p.confirmed = false;
balance = "pending";
} else {
p.id = hash;
}
let m = await db.multi();
if ([types.bitcoin, types.lightning].includes(type))
m.incrBy(`credit:${type}:${uid}`, Math.round(amount * config.fee));
m.set(`invoice:${hash}`, JSON.stringify(invoice))
.set(`payment:${p.id}`, JSON.stringify(p))
.lPush(`${uid}:payments`, p.id)
.incrBy(`${balance}:${uid}`, amount)
.exec();
l("received", type, username, amount);
emit(uid, "payment", p);
notify(user, `Received ${amount} sats`);
callWebhook(invoice, p);
return p;
};
export let confirm = async (address, txid, vout) => {
let id = `payment:${txid}:${vout}`;
let p = await g(id);
p.confirmed = true;
await db
.multi()
.set(id, JSON.stringify(p))
.decrBy(`pending:${p.uid}`, p.amount)
.incrBy(`balance:${p.uid}`, p.amount)
.exec();
};
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