wehub-resource-sync
76 lines
1.9 KiB
JavaScript
76 lines
1.9 KiB
JavaScript
/**
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* Shared header behaviors: live GitHub star counter.
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* Loaded by every page that includes the .header-github component.
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*/
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(function () {
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var REPO = 'rohitg00/ai-engineering-from-scratch';
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var CACHE_KEY = 'gh:stars:' + REPO;
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var CACHE_TTL_MS = 10 * 60 * 1000; // 10 minutes
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function format(n) {
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if (n >= 10000) return (n / 1000).toFixed(1).replace(/\.0$/, '') + 'k';
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if (n >= 1000) return (n / 1000).toFixed(1).replace(/\.0$/, '') + 'k';
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return String(n);
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}
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function paint(n) {
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var els = document.querySelectorAll(
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'.header-github .star-count, #starCount, [data-gh-stars="' + REPO + '"]'
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);
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for (var i = 0; i < els.length; i++) {
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els[i].textContent = format(n);
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els[i].removeAttribute('data-loading');
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}
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}
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function readCache() {
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try {
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var raw = localStorage.getItem(CACHE_KEY);
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if (!raw) return null;
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var parsed = JSON.parse(raw);
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if (Date.now() - parsed.t > CACHE_TTL_MS) return null;
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return parsed.n;
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} catch (e) {
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return null;
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}
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}
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function writeCache(n) {
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try {
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localStorage.setItem(CACHE_KEY, JSON.stringify({ n: n, t: Date.now() }));
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} catch (e) {
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// localStorage may be disabled
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}
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}
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function load() {
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var cached = readCache();
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if (cached != null) {
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paint(cached);
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return;
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}
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fetch('https://api.github.com/repos/' + REPO, {
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headers: { Accept: 'application/vnd.github+json' },
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})
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.then(function (r) {
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if (!r.ok) throw new Error('gh ' + r.status);
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return r.json();
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})
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.then(function (data) {
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var n = data.stargazers_count;
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if (typeof n !== 'number') return;
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writeCache(n);
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paint(n);
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})
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.catch(function () {
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// Leave the placeholder; the link still works.
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});
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}
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if (document.readyState === 'loading') {
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document.addEventListener('DOMContentLoaded', load);
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} else {
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load();
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}
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})();
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