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import locales from "$lib/locales/index";
import { randomBytes, bytesToHex } from "@noble/hashes/utils";
import migrate from "$lib/migrate";
import { g, s } from "$lib/db";
import config from "$config";
import { getPublicKey } from "nostr";
export let fail = (msg) => {
throw new Error(msg);
};
export let nada = () => {};
export let sleep = (n) => new Promise((r) => setTimeout(r, n));
export let wait = async (f, s = 300, n = 50) => {
let i = 0;
while (!(await f()) && i < s) (await sleep(n)) && i++;
if (i >= s) fail("timeout");
return f();
};
export let prod = process.env.NODE_ENV === "production";
export let bail = (res, msg) => res.code(500).send(msg);
export let SATS = 100000000;
export let sats = (n) => Math.round(n * SATS);
export let btc = (n) => parseFloat((n / SATS).toFixed(8));
export let fiat = (n, r) => (n * r) / SATS;
export let uniq = (a, k) => [...new Map(a.map((x) => [k(x), x])).values()];
export let pick = (O, K) =>
K.reduce((o, k) => (typeof O[k] !== "undefined" && (o[k] = O[k]), o), {});
export let bip21 = (address, { amount, memo, tip, type }) => {
if (!(amount || memo)) return address;
let network = { liquid: "liquidnetwork", bitcoin: "bitcoin" }[type];
let url = new URLSearchParams();
if (amount) {
url.append("amount", btc(amount + tip).toFixed(8));
if (type === "liquid") url.append("assetid", config.liquid.btc);
}
if (memo) url.append("memo", memo);
return `${network}:${address}?${url.toString()}`;
};
export let fields = [
"cipher",
"pubkey",
"password",
"username",
"salt",
"currency",
"currencies",
"fiat",
"otpsecret",
"balance",
"ip",
"pin",
"display",
"haspin",
"profile",
"prompt",
"banner",
];
export let getUser = async (username) => {
if (username === "undefined") fail("invalid user");
let user = await migrate(username);
if (user && !user.nwc) {
user.nwc = bytesToHex(randomBytes(32));
await s(getPublicKey(user.nwc), user.id);
await s(`user:${user.id}`, user);
}
return user;
};
export let getInvoice = async (hash) => {
let iid = await g(`invoice:${hash}`);
if (iid && iid.id) iid = iid.id;
else if (iid && iid.hash) iid = iid.hash;
return await g(`invoice:${iid}`);
};
export let f = (s, currency) =>
new Intl.NumberFormat("en-US", {
style: "currency",
currency,
})
.format(s)
.replace("CA", "");
export function formatReceipt(items, currency) {
function wrapText(text, maxWidth) {
const words = text.split(" ");
const lines = [];
let currentLine = "";
words.forEach((word) => {
if (currentLine.length + word.length + 1 > maxWidth) {
lines.push(currentLine);
currentLine = word;
} else {
currentLine += (currentLine.length > 0 ? " " : "") + word;
}
});
if (currentLine) lines.push(currentLine);
return lines;
}
function calculateColumnWidths(items) {
let maxQuantityLength = 0;
let maxPriceLength = 0;
items.forEach((item) => {
const quantityLength = String(item.quantity).length;
if (quantityLength > maxQuantityLength) {
maxQuantityLength = quantityLength;
}
const priceLength = f(item.price * item.quantity, currency).length;
if (priceLength > maxPriceLength) {
maxPriceLength = priceLength;
}
});
// Add padding to the widths for aesthetic spacing
return {
quantityColumnWidth: maxQuantityLength + 1, // Space after quantity
priceColumnWidth: maxPriceLength + 1, // Space before price
};
}
const maxLineWidth = 32;
const { quantityColumnWidth, priceColumnWidth } =
calculateColumnWidths(items);
const nameColumnWidth = maxLineWidth - quantityColumnWidth - priceColumnWidth;
return items
.map((item) => {
const quantityStr = String(item.quantity).padEnd(quantityColumnWidth);
const priceStr = f(item.price * item.quantity, currency).padStart(
priceColumnWidth,
);
const nameLines = wrapText(item.name, nameColumnWidth);
// Construct the full line(s) with the first line including the price
let fullLines = [
`${quantityStr}${nameLines[0].padEnd(nameColumnWidth)}${priceStr}`,
];
// Add any additional name lines, properly indented
for (let i = 1; i < nameLines.length; i++) {
fullLines.push(" ".repeat(quantityColumnWidth) + nameLines[i]);
}
return fullLines.join("\n");
})
.join("\n");
}
export let t = ({ language = "en" }) => locales[language];
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