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import Vue from 'vue';
import { getUserCounts } from '~/api/user_api';
export const userCounts = Vue.observable({
last_update: 0,
// The following fields are part of
// https://docs.gitlab.com/ee/api/users.html#user-counts
todos: 0,
assigned_issues: 0,
assigned_merge_requests: 0,
review_requested_merge_requests: 0,
});
function updateCounts(payload = {}) {
if ((payload.last_update ?? 0) < userCounts.last_update) {
return;
}
for (const key in userCounts) {
if (Number.isInteger(payload[key])) {
userCounts[key] = payload[key];
}
}
}
let broadcastChannel = null;
function broadcastUserCounts(data) {
broadcastChannel?.postMessage(data);
}
async function retrieveUserCountsFromApi() {
try {
const lastUpdate = Date.now();
const { data } = await getUserCounts();
const payload = { ...data, last_update: lastUpdate };
updateCounts(payload);
broadcastUserCounts(userCounts);
} catch (e) {
// eslint-disable-next-line no-console, @gitlab/require-i18n-strings
console.error('Error retrieving user counts', e);
}
}
export function destroyUserCountsManager() {
document.removeEventListener('userCounts:fetch', retrieveUserCountsFromApi);
broadcastChannel?.close();
broadcastChannel = null;
}
/**
* The createUserCountsManager does three things:
* 1. Set the initial state of userCounts
* 2. Create a broadcast channel to communicate user count updates across tabs
* 3. Add event listeners for other parts in the app which:
* - Update todos
* - Trigger a refetch of all counts
*/
export function createUserCountsManager() {
destroyUserCountsManager();
document.addEventListener('userCounts:fetch', retrieveUserCountsFromApi);
if (window.BroadcastChannel && gon?.current_user_id) {
broadcastChannel = new BroadcastChannel(`user_counts_${gon?.current_user_id}`);
broadcastChannel.onmessage = (ev) => {
updateCounts(ev.data);
};
broadcastUserCounts(userCounts);
}
}
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