refactor: dont save partial searches

src/controllers/search.js

@@ -97,12 +97,26 @@ searchController.search = async function (req, res, next) {
 	res.render('search', searchData);
 };
 
+const searches = {};
+
 async function recordSearch(data) {
 	const { query, searchIn } = data;
 	if (query) {
 		const cleanedQuery = String(query).trim().toLowerCase().substr(0, 255);
 		if (['titles', 'titlesposts', 'posts'].includes(searchIn) && cleanedQuery.length > 2) {
-			await db.sortedSetIncrBy('searches:all', 1, cleanedQuery);
+			searches[data.uid] = searches[data.uid] || { timeoutId: 0, queries: [] };
+			searches[data.uid].queries.push(cleanedQuery);
+			if (searches[data.uid].timeoutId) {
+				clearTimeout(searches[data.uid].timeoutId);
+			}
+			searches[data.uid].timeoutId = setTimeout(async () => {
+				const copy = searches[data.uid].queries.slice();
+				const filtered = searches[data.uid].queries.filter(
+					q => !copy.find(query => query.startsWith(q) && query.length > q.length)
+				);
+				await Promise.all(filtered.map(query => db.sortedSetIncrBy('searches:all', 1, query)));
+				delete searches[data.uid];
+			}, 5000);
 		}
 	}
 }