132 lines
3.3 KiB
HTML
132 lines
3.3 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
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<title>Fáfnir Doorbell</title>
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<script src="https://code.jquery.com/jquery-3.5.1.slim.min.js" integrity="sha256-4+XzXVhsDmqanXGHaHvgh1gMQKX40OUvDEBTu8JcmNs=" crossorigin="anonymous"></script>
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<style>
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body {
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background-color: black;
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color: white;
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}
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#status_box {
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margin: auto;
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width: 30%;
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border-style: ridge;
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border-color: yellow;
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border-width: 5px;
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padding: 15px;
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}
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.status {
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font-family: monospace;
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font-size: 250%;
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font-variant: small-caps;
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}
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.connected {
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color: green;
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}
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.disconnected {
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color: red;
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}
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</style>
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</head>
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<body>
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<section id="status_box">
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Status:
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<span id="status_line"></span>
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<br><br>
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Last Ring: <span id="last_ring" class="status"></span>
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</section>
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<audio id="chime" src="indoor.mp3"></audio>
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<template id="connected">
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<span class="status connected">Connected</span>
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</template>
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<template id="disconnected">
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<span class="status disconnected">Disconnected</span>
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</template>
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<script>
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"use strict";
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const CONNECT_TIMEOUT = 1_000;
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const KEEPALIVE_TIMEOUT = 10_000;
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let sse;
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let reconnect;
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let ping;
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connect();
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function connect() {
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console.log('connecting');
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set_status('disconnected');
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if (sse) {
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sse.onopen = undefined;
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sse.close();
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}
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if (ping) { clearTimeout(ping); }
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sse = new EventSource('events');
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sse.onopen = () => {
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console.log('connected');
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set_status('connected');
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clearTimeout(reconnect);
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keepalive();
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sse.onerror = () => {
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console.log('sse error');
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connect();
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};
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sse.addEventListener('ping', msg => {
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clearTimeout(ping);
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keepalive();
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});
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sse.addEventListener('ring', msg => {
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let chime = document.getElementById('chime');
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if (chime.paused) {
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chime.play();
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}
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let now = new Date();
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let hours = now.getHours();
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let hours12 = (hours + 11) % 12 + 1;
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let mins = now.getMinutes();
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mins = (mins < 10) ? '0' + mins : mins;
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let secs = now.getSeconds();
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secs = (secs < 10) ? '0' + secs : secs;
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let demidiemity = (hours / 12)|0 ? 'PM' : 'AM';
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$('#last_ring').text(`${hours12}:${mins}:${secs} ${demidiemity}`);
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});
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};
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reconnect = setTimeout(connect, CONNECT_TIMEOUT);
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}
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function get_template(name) {
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return $('#' + name).map((_, n) => n.content).clone();
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}
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function keepalive() {
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ping = setTimeout(() => {
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console.warn('keepalive ping timed out');
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connect();
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}, KEEPALIVE_TIMEOUT);
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}
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function set_status(status_template) {
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const template = get_template(status_template);
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const status_line = $('#status_line');
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status_line.empty();
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status_line.append(template);
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}
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</script>
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</body>
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</html>
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