Introduce processor

1 files changed, 53 insertions, 0 deletions

diff --git a/src/server/api/endpoints/users/recommendation.ts b/src/server/api/endpoints/users/recommendation.ts
new file mode 100644
index 0000000000..45d90f422b
--- /dev/null
+++ b/src/server/api/endpoints/users/recommendation.ts
@@ -0,0 +1,53 @@
+/**
+ * Module dependencies
+ */
+const ms = require('ms');
+import $ from 'cafy';
+import User, { pack } from '../../models/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 = 10, limitErr] = $(params.limit).optional.number().range(1, 100).$;
+	if (limitErr) return rej('invalid limit param');
+
+	// Get 'offset' parameter
+	const [offset = 0, offsetErr] = $(params.offset).optional.number().min(0).$;
+	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
+			},
+			$or: [
+				{
+					'account.last_used_at': {
+						$gte: new Date(Date.now() - ms('7days'))
+					}
+				}, {
+					host: { $not: null }
+				}
+			]
+		}, {
+			limit: limit,
+			skip: offset,
+			sort: {
+				followers_count: -1
+			}
+		});
+
+	// Serialize
+	res(await Promise.all(users.map(async user =>
+		await pack(user, me, { detail: true }))));
+});