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import getRates from "$lib/rates";
import { auth, fd, get, post } from "$lib/utils";
import { error, fail, redirect } from "@sveltejs/kit";
export async function load({ params, parent }) {
const { user } = await parent();
if (!user) redirect(307, "/register");
const rates = await getRates();
let data;
try {
const { lnurl } = params;
data = await get(`/decode?text=${lnurl}`);
} catch (e) {
const { message } = e as Error;
error(500, message);
}
if (!["payRequest", "withdrawRequest"].includes(data.tag))
error(500, "We only support LNURLp and LNURLw at this time");
data.rate = rates[user.currency];
return data;
}
export const actions = {
pay: async ({ fetch, request }) => {
let error;
let { callback, amount, minSendable, maxSendable, comment } =
await fd(request);
minSendable = Math.round(minSendable / 1000);
maxSendable = Math.round(maxSendable / 1000);
if (amount < minSendable)
error = `Amount must be at least ${minSendable} sats`;
if (amount > maxSendable)
error = `Amount must be at most ${maxSendable} sats`;
if (error) return fail(400, { error });
let url = `${callback}?amount=${amount * 1000}`;
if (comment) url += `&comment=${comment}`;
const { pr } = await fetch(url).then((r) => r.json());
redirect(307, `/send/lightning/${pr}`);
},
withdraw: async ({ cookies, fetch, request }) => {
let error;
let {
callback,
amount,
username,
currency,
minWithdrawable,
maxWithdrawable,
k1,
} = await fd(request);
minWithdrawable = Math.round(minWithdrawable / 1000);
maxWithdrawable = Math.round(maxWithdrawable / 1000);
if (amount < minWithdrawable)
error = `Amount must be at least ${minWithdrawable} sats`;
if (amount > maxWithdrawable)
error = `Amount must be at most ${maxWithdrawable} sats`;
if (error) return fail(400, { error });
const invoice = { amount, type: "lightning" };
const user = { username, currency };
const { text: pr } = await post(
"/invoice",
{ invoice, user },
auth(cookies),
);
const url = new URL(callback);
url.searchParams.append("k1", k1);
url.searchParams.append("pr", pr);
await fetch(url.toString());
redirect(307, "/payments");
},
};
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