/**
 * ----------------------------------------------------------------------------
 * ESP32 Remote Control with WebSocket
 * ----------------------------------------------------------------------------
 * © 2020 Stéphane Calderoni
 * ----------------------------------------------------------------------------
 */

var gateway = `ws://${window.location.hostname}/ws`;
var websocket;

// ----------------------------------------------------------------------------
// Initialization
// ----------------------------------------------------------------------------

window.addEventListener('load', onLoad);

function onLoad(event) {
    initWebSocket();
}

// ----------------------------------------------------------------------------
// WebSocket handling
// ----------------------------------------------------------------------------

function initWebSocket() {
    console.log('Trying to open a WebSocket connection...');
    websocket = new WebSocket(gateway);
    websocket.onopen  = onOpen;
    websocket.onclose = onClose;
}

function onOpen(event) {
    console.log('Connection opened');
}

function onClose(event) {
    console.log('Connection closed');
    setTimeout(initWebSocket, 2000);
}