aboutsummaryrefslogtreecommitdiffstats
path: root/src/routes/(app)/launch/purchase/+page.server.js
diff options
context:
space:
mode:
Diffstat (limited to 'src/routes/(app)/launch/purchase/+page.server.js')
0 files changed, 0 insertions, 0 deletions
generated by cgit v1.2.3 (git 2.51.0) at 2026-11-01 01:38:46 +0000
68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 
import { get } from 'svelte/store';
import {
	events as $events,
	invoices,
	invoice,
	request,
	newPayment,
	last,
	rate,
	txns,
	user
} from '$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;
let le = browser && localStorage.getItem('events');
let events = le && le !== 'undefined' ? JSON.parse(le) : {};
let q = Object.keys(events);

export const auth = () => token && send('login', token) && send('heartbeat');

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() {
		data.seen = Math.round(Date.now() / 1000);
		events[data.id] = data;
		q.push(data.id);
		$events.set(events);
		while (q.length > 10000) delete events[q.shift()];
		localStorage.setItem(
			'events',
			JSON.stringify(q.slice(-100).reduce((a, b) => (a = { ...a, [b]: events[b] }), {}))
		);
	},

	rate() {
		rate.set(data);
	},

	request() {
		request.set(data);
		invalidate('app:invoice');
	},

	async payment() {
		let { amount, invoice } = data;

		if (invoice) invalidate('app:invoice');
		if (get(user)?.account_id !== data.account_id) return;

		let payments = get(txns);
		let i = payments.findIndex((p) => p.id === data.id);
		if (~i) (payments[i] = data), txns.set(payments);
		else newPayment.set(true);

		invalidate((url) => url.pathname === '/payments');

		if (amount > 0) {
			success(`${data.confirmed ? 'Received' : 'Detected'} ${sat(amount)}!`);
		} else {
			success(`Sent ${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();
}