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import { get } from "$lib/utils";
import { redirect } from "@sveltejs/kit";
export async function load({ cookies, depends, params, url, parent }) {
depends("app:invoice");
const token = cookies.get("token");
let { subject, user } = await parent();
const { id } = params;
let invoice;
// Amount of a payment that arrived while the page was open, set by the
// socket handler. Only meaningful for reusable (bolt12) offers, whose
// `received` is a lifetime total rather than this payment.
let justPaid: string | null = null;
if (id) {
invoice = await get(`/invoice/${id}`);
const options = !!url.searchParams.get("options");
let { amount, pending, received } = invoice;
amount = parseInt(amount);
// A bolt12 offer is a standing, REUSABLE payment code: CLN derives the same
// offer_id from the same (amount, description), so re-creating one hands back
// the original record with `received` accumulated over its entire lifetime.
// Treating that as "paid" bounces the user straight to the success screen so
// they never get to see the QR or copy the lno — and a long-lived offer that
// takes regular payouts is effectively unusable, since its last payment may
// be hours or months old. A standing offer has no terminal paid state, so
// only a payment arriving live counts — the socket handler signals that
// with `?paid=<amount>`.
const reusable = invoice.type === "bolt12";
justPaid = url.searchParams.get("paid");
const paid = reusable
? !!justPaid
: (!amount && (pending || received)) ||
(amount > 0 && (pending >= amount || received >= amount));
if (paid && !url.pathname.endsWith("paid")) {
const q = new URLSearchParams();
if (options) q.set("options", "true");
// Carry the amount of THIS payment through; the success screen would
// otherwise render lifetime `received` for a reusable offer.
if (justPaid) q.set("paid", justPaid);
const qs = q.toString();
redirect(307, `/invoice/${id}/paid${qs ? `?${qs}` : ""}`);
}
subject = invoice.user;
if (
user &&
invoice.uid !== user?.id &&
!(url.pathname.includes("tip") || url.pathname.includes("memo")) &&
!options
) {
if (invoice.prompt && invoice.tip === null)
redirect(307, `/invoice/${id}/tip`);
else {
redirect(307, `/send/invoice/${id}`);
}
}
}
const theme = cookies.get("theme") || "light";
return { id, invoice, subject, user, token, theme, justPaid };
}
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