74 lines
2.3 KiB
Plaintext
74 lines
2.3 KiB
Plaintext
{%- if theme.firestore.enable %}
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<script src="https://www.gstatic.com/firebasejs/6.3.3/firebase-app.js"></script>
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<script src="https://www.gstatic.com/firebasejs/6.3.3/firebase-firestore.js"></script>
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<script>
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firebase.initializeApp({
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apiKey : '{{ theme.firestore.apiKey }}',
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projectId: '{{ theme.firestore.projectId }}'
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});
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function getCount(doc, increaseCount) {
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// IncreaseCount will be false when not in article page
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return doc.get().then(d => {
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var count = 0;
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if (!d.exists) { // Has no data, initialize count
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if (increaseCount) {
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doc.set({
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count: 1
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});
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count = 1;
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}
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} else { // Has data
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count = d.data().count;
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if (increaseCount) {
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// If first view this article
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doc.set({ // Increase count
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count: count + 1
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});
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count++;
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}
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}
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return count;
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});
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}
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function appendCountTo(el) {
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return count => {
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el.innerText = count;
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}
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}
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</script>
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<script{{ pjax }}>
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(function() {
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var db = firebase.firestore();
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var articles = db.collection('{{ theme.firestore.collection }}');
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if (CONFIG.page.isPost) { // Is article page
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var title = document.querySelector('.post-title').innerText.trim();
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var doc = articles.doc(title);
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var increaseCount = CONFIG.hostname === location.hostname;
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if (localStorage.getItem(title)) {
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increaseCount = false;
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} else {
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// Mark as visited
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localStorage.setItem(title, true);
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}
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getCount(doc, increaseCount).then(appendCountTo(document.querySelector('.firestore-visitors-count')));
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} else if (CONFIG.page.isHome) { // Is index page
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var promises = [...document.querySelectorAll('.post-title')].map(element => {
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var title = element.innerText.trim();
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var doc = articles.doc(title);
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return getCount(doc);
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});
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Promise.all(promises).then(counts => {
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var metas = document.querySelectorAll('.firestore-visitors-count');
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counts.forEach((val, idx) => {
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appendCountTo(metas[idx])(val);
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});
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});
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}
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})();
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</script>
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{%- endif %}
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