fix sorting change makes hidden users to appear

frontend/app/store/sort/actions.ts

@@ -1,28 +1,40 @@
-import api from '@app/common/api';
 import { Sorting } from '@app/common/types';
 import { COOKIE_SORT_KEY } from '@app/common/constants';
 import { setCookie } from '@app/common/cookies';
 
 import { StoreAction } from '../index';
-import { setPostInfo } from '../post_info/actions';
-import { setComments } from '../comments/actions';
+import { fetchComments } from '../comments/actions';
 import { SORT_SET, SORT_SET_ACTION } from './types';
 
-export const setSort = (sort: Sorting): StoreAction<Promise<void>> => async dispatch => {
+function setSortCookie(sort: Sorting) {
   try {
     setCookie(COOKIE_SORT_KEY, sort, { expires: 60 * 60 * 24 * 365 }); // save sorting for a year
-  } catch (e) {
+  } catch {
     // can't save; ignore it
   }
+}
 
-  const info = await api.getPostComments(sort);
+export const setSort = (sort: Sorting): StoreAction<Promise<void>> => async (dispatch, getState) => {
+  const originalSort = getState().sort;
+  setSortCookie(sort);
 
-  const action: SORT_SET_ACTION = {
-    type: SORT_SET,
-    sort,
-  };
+  try {
+    const action: SORT_SET_ACTION = {
+      type: SORT_SET,
+      sort,
+    };
 
-  dispatch(action);
-  dispatch(setPostInfo(info.info));
-  dispatch(setComments(info.comments));
+    await dispatch(action);
+    await dispatch(fetchComments(sort));
+  } catch {
+    // restore sort in case of error, probably network error
+
+    const action: SORT_SET_ACTION = {
+      type: SORT_SET,
+      sort: originalSort,
+    };
+
+    setSortCookie(originalSort);
+    await dispatch(action);
+  }
 };