Add link to date of city visit to right sidebar

app/controllers/points_controller.rb

@@ -1,3 +1,4 @@
+# frozen_string_literal: true
 class PointsController < ApplicationController
   before_action :authenticate_user!
 

app/helpers/points_helper.rb

@@ -1,2 +1,12 @@
+# frozen_string_literal: true
+
 module PointsHelper
+  def link_to_date(timestamp)
+    datetime = Time.zone.at(timestamp)
+
+    link_to points_path(start_at: datetime.beginning_of_day, end_at: datetime.end_of_day), \
+            class: 'underline hover:no-underline' do
+      datetime.strftime('%d.%m.%Y')
+    end
+  end
 end

app/views/shared/_right_sidebar.html.erb

@@ -40,7 +40,7 @@
     <ul>
       <% country[:cities].each do |city| %>
         <li>
-          <%= city[:city] %> (<%= Time.zone.at(city[:timestamp]).strftime("%d.%m.%Y") %>)
+          <%= city[:city] %> (<%= link_to_date(city[:timestamp]) %>)
         </li>
       <% end %>
     </ul>