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import store from "$lib/store";
import { l } from "$lib/logging";
import { emit } from "$lib/sockets";
import { db, g, s } from "$lib/db";
import { bip21, fail } from "$lib/utils";
import { types } from "$lib/payments";
import { v4 } from "uuid";
import bc from "$lib/bitcoin";
import ln from "$lib/ln";
export let generate = async ({ invoice, user, sender }) => {
let { currency, tip, amount, rate, request_id, type } = invoice;
amount = parseInt(amount || 0);
tip = parseInt(tip || 0);
if (amount < 0) fail("amount out of range");
if (tip > 5 * amount || tip < 0) fail("tip amount out of range");
if (!user) user = sender;
let uid = await g(`user:${user.username}`);
user = await g(`user:${uid}`);
if (!user) fail("user not provided");
if (!currency) currency = user.currency;
if (!rate) rate = store.rates[currency];
if (amount < 0) fail("invalid amount");
let hash, text;
if (type === types.lightning) {
let amt = amount ? `${amount + tip}sat` : "any";
let r = await ln.invoice(amt, new Date(), "", 3600);
hash = r.payment_hash;
text = r.bolt11;
} else if (type === types.bitcoin) {
hash = await bc.getNewAddress();
text = bip21(hash, invoice);
} else if (type === types.internal) {
hash = v4();
} else {
fail("unrecognized type");
}
invoice = {
...invoice,
amount,
hash,
text,
currency,
rate,
tip,
uid,
received: 0,
created: Date.now()
};
l("creating invoice", user.username, amount, tip, currency, invoice.hash);
await s(`invoice:${hash}`, invoice);
await db.lPush(`${uid}:invoices`, hash);
if (request_id) {
let request = await g(`request:${request_id}`);
let { invoice_id: prev } = request;
request.invoice_id = invoice.id;
await s(`request:${request_id}`, request);
if (!prev) emit(request.requester.username, "invoice", invoice);
}
return invoice;
};
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