implement recent music endpoint

packages/server/services/music/routes/music/recently/get.js

@@ -0,0 +1,36 @@
+import { RecentActivity } from "@db_models"
+
+import TrackClass from "@classes/track"
+
+export default {
+    middlewares: [
+        "withAuthentication",
+    ],
+    fn: async (req, res) => {
+        const user_id = req.auth.session.user_id
+
+        let activities = await RecentActivity.find({
+            user_id: user_id,
+            type: "track_played"
+        })
+            .limit(req.query.limit ?? 20)
+            .sort({ created_at: -1 })
+
+        // filter undefined tracks_ids
+        activities = activities.filter((activity) => {
+            return activity.payload && activity.payload.track_id
+        })
+
+        // map track objects to track ids
+        let tracks_ids = activities.map((activity) => {
+            return activity.payload.track_id
+        })
+
+        const tracks = await TrackClass.get(tracks_ids, {
+            user_id,
+            onlyList: true
+        })
+
+        return tracks
+    }
+}