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import { get } from "svelte/store";
import { event, invoice, request, newPayment, last, user } from "$lib/store";
import { success, sat } from "$lib/utils";
import { PUBLIC_SOCKET } from "$env/static/public";
import { invalidate } from "$app/navigation";
import { browser } from "$app/environment";
let socket, token;
export const auth = () => token && send("login", token);
export const send = (type, data) => {
socket?.readyState === 1 && socket.send(JSON.stringify({ type, data }));
return true;
};
export const messages = (data) => ({
id() {
last.set(Date.now());
},
invoice() {
invoice.set(data);
},
event() {
event.set(data);
},
request() {
request.set(data);
invalidate("app:invoice");
},
async payment() {
let { amount, confirmed } = data;
invalidate("app:user");
invalidate("app:invoice");
invalidate("app:payments");
if (amount > 0) {
success(`${confirmed ? "Received" : "Detected"} ${sat(amount)}!`);
}
},
connected: auth,
});
const initialReconnectDelay = 1000;
const maxReconnectDelay = 16000;
let currentReconnectDelay = initialReconnectDelay;
export function connect(t) {
token = t;
if (socket) return auth();
socket = new WebSocket(PUBLIC_SOCKET);
socket.addEventListener("open", onWebsocketOpen);
socket.addEventListener("close", onWebsocketClose);
socket.addEventListener("message", onWebsocketMessage);
}
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(token);
}
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