[UI] Refactor TrackFile Modal

frontend/src/Store/Selectors/createTrackFileSelector.js

@@ -0,0 +1,18 @@
+import _ from 'lodash';
+import { createSelector } from 'reselect';
+
+function createTrackFileSelector() {
+  return createSelector(
+    (state, { trackFileId }) => trackFileId,
+    (state) => state.trackFiles,
+    (trackFileId, trackFiles) => {
+      if (!trackFileId) {
+        return null;
+      }
+
+      return _.find(trackFiles.items, { id: trackFileId });
+    }
+  );
+}
+
+export default createTrackFileSelector;