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ghostream/web/static/js/modules/viewerCounter.js

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/**
* ViewerCounter show the number of active viewers
*/
export class ViewerCounter {
/**
* @param {HTMLElement} element
* @param {String} streamName
*/
constructor(element, streamName) {
this.element = element;
this.url = "/_stats/" + streamName;
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this.uid = Math.floor(1e19 * Math.random()).toString(16);
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}
/**
* Regulary update counter
*
* @param {Number} updatePeriod
*/
regularUpdate(updatePeriod) {
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setInterval(() => this.refreshViewersCounter(), updatePeriod);
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}
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refreshViewersCounter() {
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fetch(this.url + "?uid=" + this.uid)
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.then(response => response.json())
.then((data) => this.element.innerText = data.ConnectedViewers)
.catch(console.log);
}
}