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var notifications, delivered;
function get_subscriptions(callback, retries) {
if (retries == undefined) retries = 5;
if (retries <= 0) {
return;
}
var xhr = new XMLHttpRequest();
xhr.responseType = 'json';
xhr.timeout = 10000;
xhr.open('GET', '/api/v1/auth/subscriptions?fields=authorId', true);
xhr.onreadystatechange = function () {
if (xhr.readyState === 4) {
if (xhr.status === 200) {
subscriptions = xhr.response;
callback(subscriptions);
}
}
}
xhr.onerror = function () {
console.log('Pulling subscriptions failed... ' + retries + '/5');
setTimeout(function () { get_subscriptions(callback, retries - 1) }, 1000);
}
xhr.ontimeout = function () {
console.log('Pulling subscriptions failed... ' + retries + '/5');
get_subscriptions(callback, retries - 1);
}
xhr.send();
}
function create_notification_stream(subscriptions) {
notifications = new SSE(
'/api/v1/auth/notifications?fields=videoId,title,author,authorId,publishedText,published,authorThumbnails,liveNow', {
withCredentials: true,
payload: 'topics=' + subscriptions.map(function (subscription) { return subscription.authorId }).join(','),
headers: { 'Content-Type': 'application/x-www-form-urlencoded' }
});
delivered = [];
var start_time = Math.round(new Date() / 1000);
notifications.onmessage = function (event) {
if (!event.id) {
return;
}
var notification = JSON.parse(event.data);
console.log('Got notification:', notification);
if (start_time < notification.published && !delivered.includes(notification.videoId)) {
if (Notification.permission === 'granted') {
var system_notification =
new Notification((notification.liveNow ? notification_data.live_now_text : notification_data.upload_text).replace('`x`', notification.author), {
body: notification.title,
icon: '/ggpht' + new URL(notification.authorThumbnails[2].url).pathname,
img: '/ggpht' + new URL(notification.authorThumbnails[4].url).pathname,
tag: notification.videoId
});
system_notification.onclick = function (event) {
window.open('/watch?v=' + event.currentTarget.tag, '_blank');
}
}
delivered.push(notification.videoId);
localStorage.setItem('notification_count', parseInt(localStorage.getItem('notification_count') || '0') + 1);
var notification_ticker = document.getElementById('notification_ticker');
if (parseInt(localStorage.getItem('notification_count')) > 0) {
notification_ticker.innerHTML =
'<span id="notification_count">' + localStorage.getItem('notification_count') + '</span> <i class="icon ion-ios-notifications"></i>';
} else {
notification_ticker.innerHTML =
'<i class="icon ion-ios-notifications-outline"></i>';
}
}
}
notifications.addEventListener('error', handle_notification_error);
notifications.stream();
}
function handle_notification_error(event) {
console.log('Something went wrong with notifications, trying to reconnect...');
notifications = { close: function () { } };
setTimeout(function () { get_subscriptions(create_notification_stream) }, 1000);
}
window.addEventListener('load', function (e) {
localStorage.setItem('notification_count', document.getElementById('notification_count') ? document.getElementById('notification_count').innerText : '0');
if (localStorage.getItem('stream')) {
localStorage.removeItem('stream');
} else {
setTimeout(function () {
if (!localStorage.getItem('stream')) {
notifications = { close: function () { } };
localStorage.setItem('stream', true);
get_subscriptions(create_notification_stream);
}
}, Math.random() * 1000 + 50);
}
window.addEventListener('storage', function (e) {
if (e.key === 'stream' && !e.newValue) {
if (notifications) {
localStorage.setItem('stream', true);
} else {
setTimeout(function () {
if (!localStorage.getItem('stream')) {
notifications = { close: function () { } };
localStorage.setItem('stream', true);
get_subscriptions(create_notification_stream);
}
}, Math.random() * 1000 + 50);
}
} else if (e.key === 'notification_count') {
var notification_ticker = document.getElementById('notification_ticker');
if (parseInt(e.newValue) > 0) {
notification_ticker.innerHTML =
'<span id="notification_count">' + e.newValue + '</span> <i class="icon ion-ios-notifications"></i>';
} else {
notification_ticker.innerHTML =
'<i class="icon ion-ios-notifications-outline"></i>';
}
}
});
});
window.addEventListener('unload', function (e) {
if (notifications) {
localStorage.removeItem('stream');
}
});
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