Files
remark42/frontend/app/counter.ts
T

44 lines
1.5 KiB
TypeScript

import { COUNTER_NODE_CLASSNAME, BASE_URL, API_BASE } from 'common/constants.config';
if (document.readyState === 'loading') {
document.addEventListener('DOMContentLoaded', init);
} else {
init();
}
function init(): void {
const nodes = Array.from(document.getElementsByClassName(COUNTER_NODE_CLASSNAME)) as HTMLElement[];
if (!nodes) {
throw new Error("Remark42: Can't find counter nodes.");
}
if (!window.remark_config) {
throw new Error('Remark42: Config object is undefined.');
}
if (!window.remark_config.site_id) {
throw new Error('Remark42: Site ID is undefined.');
}
const map = nodes.reduce<{ [key: string]: HTMLElement[] }>((acc, node) => {
const id = node.dataset.url || window.remark_config.url || `${window.location.origin}${window.location.pathname}`;
if (!acc[id]) acc[id] = [];
acc[id].push(node);
return acc;
}, {});
const oReq = new XMLHttpRequest();
oReq.onreadystatechange = function (this: XMLHttpRequest) {
if (this.readyState === XMLHttpRequest.DONE && this.status === 200) {
try {
const res = JSON.parse(this.responseText) as { url: string; count: number }[];
res.forEach((item) => map[item.url].map((n) => (n.innerHTML = item.count.toString(10))));
} catch (e) {}
}
};
oReq.open('POST', `${BASE_URL}${API_BASE}/counts?site=${window.remark_config.site_id}`, true);
oReq.setRequestHeader('Content-Type', 'application/json');
oReq.send(JSON.stringify(Object.keys(map)));
}