Add option to trigger reloading UI for search view controller

Author: itsmeichigo

WooCommerce/Classes/ViewRelated/Search/SearchUICommand.swift

@@ -1,3 +1,4 @@
+import Combine
 import UIKit
 import Yosemite
 
@@ -35,6 +36,9 @@ protocol SearchUICommand {
     ///
     var adjustTableViewBottomInsetWhenKeyboardIsShown: Bool { get }
 
+    /// Stream of UI reload request - necessary when the search list need to be refreshed manually.
+    var reloadUIRequests: AnyPublisher<Void, Never> { get }
+
     /// A closure to resynchronize models if the data source might change (e.g. when the filter changes in products search).
     /// Set externally to enable resyncing the models when needed. Otherwise, an empty closure can be set by default.
     var resynchronizeModels: (() -> Void) { get set }
@@ -182,6 +186,12 @@ extension SearchUICommand {
 
 extension SearchUICommand {
 
+    /// Default value for the optional property
+    ///
+    var reloadUIRequests: AnyPublisher<Void, Never> {
+        Empty<Void, Never>().eraseToAnyPublisher()
+    }
+
     /// Creates an instance of `EmptySearchResultsViewController`
     ///
     func createEmptyStateViewController() -> EmptyStateViewController {

WooCommerce/Classes/ViewRelated/Search/SearchViewController.swift

@@ -158,6 +158,7 @@ where Cell.SearchModel == Command.CellViewModel {
         configureResultsController()
         configureStarterViewController()
         configureSearchResync()
+        configureUIReload()
         observeSelectedObjectAndDataLoadedStateToUpdateSelectedRow()
 
         if searchUICommand.adjustTableViewBottomInsetWhenKeyboardIsShown {
@@ -443,6 +444,14 @@ private extension SearchViewController {
         }
     }
 
+    func configureUIReload() {
+        searchUICommand.reloadUIRequests
+            .sink { [weak self] in
+                self?.tableView.reloadData()
+            }
+            .store(in: &subscriptions)
+    }
+
     func observeSelectedObjectAndDataLoadedStateToUpdateSelectedRow() {
         guard let selectedObject else {
             return