Add dashboard for cron-style jobs (#367)

* Add dashboard for cron-style jobs

* Rename nav item

* Apply review changes

engine/app/controllers/good_job/cron_schedules_controller.rb

@@ -0,0 +1,10 @@
+# frozen_string_literal: true
+
+module GoodJob
+  class CronSchedulesController < GoodJob::BaseController
+    def index
+      configuration = GoodJob::Configuration.new({})
+      @cron_schedules = configuration.cron
+    end
+  end
+end

engine/app/views/good_job/cron_schedules/index.html.erb

@@ -0,0 +1,28 @@
+<% if @cron_schedules.present? %>
+  <div class="card my-3">
+    <div class="table-responsive">
+      <table class="table card-table table-bordered table-hover table-sm mb-0">
+        <thead>
+          <th>Cron Job Name</th>
+          <th>Configuration</th>
+          <th>Class</th>
+          <th>Description</th>
+          <th>Next execution</th>
+        </thead>
+        <tbody>
+          <% @cron_schedules.each do |job_key, job| %>
+            <tr>
+              <td class="font-monospace"><%= job_key %></td>
+              <td class="font-monospace"><%= job[:cron] %></td>
+              <td class="font-monospace"><%= job[:class] %></td>
+              <td><%= job[:description] %></td>
+              <td><%= Fugit.parse_cron(job[:cron]).next_time.to_local_time %></td>
+            </tr>
+          <% end %>
+        </tbody>
+      </table>
+    </div>
+  </div>
+<% else %>
+  <em>No cron jobs present.</em>
+<% end %>

engine/app/views/layouts/good_job/base.html.erb

@@ -23,9 +23,15 @@
       <div class="collapse navbar-collapse" id="navbarSupportedContent">
         <ul class="navbar-nav me-auto">
           <li class="nav-item">
-            <%= link_to root_path, class: ["nav-link", ("active" if current_page?(root_path))] do %>
-              All jobs <span class="badge bg-secondary">More views coming soon</span>
-            <% end %>
+            <%= link_to "All Jobs", root_path, class: ["nav-link", ("active" if current_page?(root_path))] %>
+          </li>
+          <li class="nav-item">
+            <%= link_to "Cron Schedules", cron_schedules_path, class: ["nav-link", ("active" if current_page?(root_path))] %>
+          </li>
+          <li class="nav-item">
+            <div class="nav-link">
+              <span class="badge bg-secondary">More views coming soon</span>
+            </div>
           </li>
 
           <!-- Coming Soon

engine/config/routes.rb

@@ -1,6 +1,7 @@
 # frozen_string_literal: true
 GoodJob::Engine.routes.draw do
   root to: 'dashboards#index'
+  resources :cron_schedules, only: %i[index]
   resources :active_jobs, only: %i[show]
   resources :jobs, only: %i[destroy]
 

spec/system/cron_schedules_spec.rb

@@ -0,0 +1,9 @@
+# frozen_string_literal: true
+require 'rails_helper'
+
+describe 'Cron Schedules', type: :system, js: true do
+  it 'renders successfully' do
+    visit '/good_job/cron_schedules'
+    expect(page).to have_content 'ExampleJob'
+  end
+end