Add empty state message for balance warnings widget

apps/dashboard/app/views/shared/_insufficient_balance.html.erb

@@ -13,4 +13,8 @@
     <%- end -%>
     </div>
   </div>
+<%- else -%>
+  <div class="alert alert-info insufficient-balance">
+    <%= t('dashboard.balance_no_warnings_html', threshold: Configuration.balance_threshold.to_i) %>
+  </div>
 <%- end -%>

apps/dashboard/config/locales/en-CA.yml

@@ -35,6 +35,7 @@ en-CA:
     back: Back
     balance_additional_message: Consider requesting additional %{balanace_units}
     balance_message: "%{units_balance} is %{value}"
+    balance_no_warnings_html: "No projects are within the %{threshold} day balance warning threshold."
     balance_reload_message_html: Reload page to see updated balance. Balances are updated daily.<br>Last update was %{last_update}
     balance_warning_prefix_html: "%{units_balance} warning for"
     batch_connect_apps_menu_title: Interactive Apps

apps/dashboard/config/locales/en.yml

@@ -36,6 +36,7 @@ en:
     back: Back
     balance_additional_message: Consider requesting additional %{balanace_units}
     balance_message: "%{units_balance} is %{value}"
+    balance_no_warnings_html: "No projects are within the %{threshold} day balance warning threshold."
     balance_reload_message_html: Reload page to see updated balance. Balances are updated daily.<br>Last update was %{last_update}
     balance_warning_prefix_html: "%{units_balance} warning for"
     batch_connect_apps_menu_title: Interactive Apps

apps/dashboard/config/locales/fr-CA.yml

@@ -35,6 +35,7 @@ fr-CA:
     back: Retour
     balance_additional_message: Envisagez de demander %{balanace_units} supplémentaires
     balance_message: "%{units_balance} est %{value}"
+    balance_no_warnings_html: "Aucun projet n’est dans le seuil d’avertissement de solde de %{threshold} jours."
     balance_reload_message_html: 'Rechargez la page pour voir le solde mis à jour. Les soldes sont mis à jour quotidiennement.<br>Dernière mise à jour : %{last_update}'
     balance_warning_prefix_html: "%{units_balance} avertissement pour"
     batch_connect_apps_menu_title: Applications interactives

apps/dashboard/config/locales/ja_JP.yml

@@ -33,6 +33,7 @@ ja_JP:
     back: 戻る
     balance_additional_message: 追加の%{balanace_units}をリクエストすることを検討してください
     balance_message: "%{units_balance}は%{value}です"
+    balance_no_warnings_html: "%{threshold} 日の残高警告しきい値の範囲内にあるプロジェクトはありません。"
     balance_reload_message_html: ページを再読み込みして、更新された残高を確認してください。残高は毎日更新されます。<br>最終更新は %{last_update} でした。
     balance_warning_prefix_html: "%{units_balance} の警告"
     batch_connect_apps_menu_title: インタラクティブアプリ

apps/dashboard/config/locales/zh-CN.yml

@@ -34,6 +34,7 @@ zh-CN:
     back: 返回
     balance_additional_message: 考虑申请额外的 %{balanace_units}
     balance_message: "%{units_balance} 是 %{value}"
+    balance_no_warnings_html: "没有项目处于 %{threshold} 天余额警告阈值范围内。"
     balance_reload_message_html: 重新加载页面以查看更新后的余额。 余额每天更新。<br>最后一次更新是 %{last_update}
     balance_warning_prefix_html: "%{units_balance} 警告"
     batch_connect_apps_menu_title: 交互式应用

apps/dashboard/test/integration/balance_warnings_views_test.rb

@@ -0,0 +1,46 @@
+require 'test_helper'
+
+class BalanceWarningsViewsTest < ActionDispatch::IntegrationTest
+  setup do
+    stub_user
+    stub_user_configuration({})
+  end
+
+  test 'shows informational message when there are no balance warnings' do
+    with_balance_file([{ project: 'PZS0708', user: 'me', value: 20 }]) do |path|
+      with_modified_env('OOD_BALANCE_PATH' => path, 'OOD_BALANCE_THRESHOLD' => '10') do
+        get '/'
+        assert_response :success
+        assert_select 'div.alert.alert-info.insufficient-balance'
+      end
+    end
+  end
+
+  test 'shows danger alert when there is a balance warning' do
+    with_balance_file([{ project: 'PZS0708', user: 'me', value: 0 }]) do |path|
+      with_modified_env('OOD_BALANCE_PATH' => path, 'OOD_BALANCE_THRESHOLD' => '10') do
+        get '/'
+        assert_response :success
+        assert_select 'div.alert.alert-danger.insufficient-balance'
+      end
+    end
+  end
+
+  private
+
+  def with_balance_file(balances)
+    Tempfile.open(%w[balance .json]) do |f|
+      f.write(
+        {
+          version: 1,
+          timestamp: 1234567890,
+          config: { unit: 'RU', project_type: 'project' },
+          balances: balances
+        }.to_json
+      )
+      f.flush
+
+      yield f.path
+    end
+  end
+end