add route to get all tracks in path

+ add routes to save album and artist as a playlist

app/api/folder.py

@@ -2,16 +2,18 @@
 Contains all the folder routes.
 """
 import os
-import psutil
-
 from pathlib import Path
+
+import psutil
 from flask import Blueprint, request
 from showinfm import show_in_file_manager
 
 from app import settings
-from app.lib.folderslib import GetFilesAndDirs, get_folders
 from app.db.sqlite.settings import SettingsSQLMethods as db
-from app.utils.wintools import win_replace_slash, is_windows
+from app.lib.folderslib import GetFilesAndDirs, get_folders
+from app.serializers.track import track_serializer
+from app.store.tracks import TrackStore as store
+from app.utils.wintools import is_windows, win_replace_slash
 
 api = Blueprint("folder", __name__, url_prefix="")
 
@@ -129,3 +131,19 @@ def open_in_file_manager():
     show_in_file_manager(path)
 
     return {"success": True}
+
+
+@api.route("/folder/tracks/all")
+def get_tracks_in_path():
+    path = request.args.get("path")
+
+    if path is None:
+        return {"error": "No path provided."}, 400
+
+    tracks = store.get_tracks_in_path(path)
+    tracks = sorted(tracks, key=lambda i: i.last_mod)
+    tracks = (track_serializer(t) for t in tracks if Path(t.filepath).exists())
+
+    return {
+        "tracks": list(tracks)[:300],
+    }