wip

src/api/endpoints/users/recommendation.ts

@@ -0,0 +1,48 @@
+'use strict';
+
+/**
+ * Module dependencies
+ */
+import it from '../../it';
+import User from '../../models/user';
+import serialize from '../../serializers/user';
+import getFriends from '../../common/get-friends';
+
+/**
+ * Get recommended users
+ *
+ * @param {any} params
+ * @param {any} me
+ * @return {Promise<any>}
+ */
+module.exports = (params, me) =>
+	new Promise(async (res, rej) =>
+{
+	// Get 'limit' parameter
+	const [limit, limitErr] = it(params.limit).expect.number().range(1, 100).default(10).qed();
+	if (limitErr) return rej('invalid limit param');
+
+	// Get 'offset' parameter
+	const [offset, offsetErr] = it(params.offset).expect.number().min(0).default(0).qed();
+	if (offsetErr) return rej('invalid offset param');
+
+	// ID list of the user itself and other users who the user follows
+	const followingIds = await getFriends(me._id);
+
+	const users = await User
+		.find({
+			_id: {
+				$nin: followingIds
+			}
+		}, {
+			limit: limit,
+			skip: offset,
+			sort: {
+				followers_count: -1
+			}
+		});
+
+	// Serialize
+	res(await Promise.all(users.map(async user =>
+		await serialize(user, me, { detail: true }))));
+});