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import { get } from 'svelte/store';
import { invoices, newPayment, rate, user } from '$lib/store';
import { success } from '$lib/utils';
import { env } from '$env/dynamic/public';
const socketUrl = env.PUBLIC_SOCKET;
const btc = env.PUBLIC_BTC;
let interval, socket, token;
export const auth = () => token && send('login', token);
export const send = (type, data) => {
socket?.readyState === 1 && socket.send(JSON.stringify({ type, data }));
};
export const messages = (data) => ({
rate() {
rate.set(data);
},
async payment() {
let { amount, invoice } = data;
if (get(user).account_id !== data.account_id) return;
if (invoice) {
invoices.set({ ...get(invoices), [invoice.uuid]: invoice });
}
newPayment.set(true);
if (amount > 0) {
success(`Received ${amount} sats!`);
} else {
success(`Sent ${-amount} sats!`);
}
},
connected: auth
});
const initialReconnectDelay = 1000;
const maxReconnectDelay = 16000;
let currentReconnectDelay = initialReconnectDelay;
export function connect(t) {
token = t;
clearInterval(interval);
if (socket) return auth();
socket = new WebSocket(socketUrl);
socket.addEventListener('open', onWebsocketOpen);
socket.addEventListener('close', onWebsocketClose);
socket.addEventListener('message', onWebsocketMessage);
interval = setInterval(() => send('heartbeat'), 5000);
}
export function close() {
if (socket) socket.close();
}
function onWebsocketMessage(msg) {
let { type, data } = JSON.parse(msg.data);
messages(data)[type] && messages(data)[type]();
}
function onWebsocketOpen() {
currentReconnectDelay = initialReconnectDelay;
}
function onWebsocketClose() {
socket = null;
setTimeout(() => {
reconnectToWebsocket();
}, currentReconnectDelay + Math.floor(Math.random() * 3000));
}
function reconnectToWebsocket() {
if (currentReconnectDelay < maxReconnectDelay) {
currentReconnectDelay *= 2;
}
connect();
}
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