Add agent role icons in agent tables

app/assets/stylesheets/application.css.scss.erb

@@ -318,3 +318,12 @@ $service-colors: (
   color: yellow;
   text-decoration: underline;
 }
+
+.glyphicon-flipped {
+  -ms-transform: translateZ(0);
+  -webkit-transform: translateZ(0);
+  transform: translateZ(0);
+  -ms-transform: scaleX(-1);
+  -webkit-transform: scaleX(-1);
+  transform: scaleX(-1);
+}

app/controllers/agents_controller.rb

@@ -6,7 +6,7 @@ class AgentsController < ApplicationController
   def index
     set_table_sort sorts: %w[name created_at last_check_at last_event_at last_receive_at], default: { created_at: :desc }
 
-    @agents = current_user.agents.preload(:scenarios, :controllers).reorder(table_sort).page(params[:page])
+    @agents = current_user.agents.preload(:scenarios, :controllers, :links_as_receiver, :links_as_source, :control_links_as_controller).reorder(table_sort).page(params[:page])
 
     if show_only_enabled_agents?
       @agents = @agents.where(disabled: false)

app/controllers/scenarios_controller.rb

@@ -26,7 +26,7 @@ class ScenariosController < ApplicationController
     @scenario = current_user.scenarios.find(params[:id])
 
     set_table_sort sorts: %w[name last_check_at last_event_at last_receive_at], default: { name: :asc }
-    @agents = @scenario.agents.preload(:scenarios, :controllers).reorder(table_sort).page(params[:page])
+    @agents = @scenario.agents.preload(:scenarios, :controllers, :links_as_receiver, :links_as_source, :control_links_as_controller).reorder(table_sort).page(params[:page])
 
     respond_to do |format|
       format.html

app/helpers/agent_helper.rb

@@ -57,4 +57,28 @@ module AgentHelper
       'maybe'.freeze
     end
   end
+
+  def agent_type_icon(agent)
+    receiver_count = agent.links_as_receiver.length
+    control_count = agent.control_links_as_controller.length
+    source_count = agent.links_as_source.length
+
+    if control_count > 0 && receiver_count > 0
+      content_tag('span') do
+        concat icon_tag('glyphicon-arrow-right')
+        concat tag('br')
+        concat icon_tag('glyphicon-new-window', class: 'glyphicon-flipped')
+      end
+    elsif control_count > 0 && receiver_count == 0
+      icon_tag('glyphicon-new-window', class: 'glyphicon-flipped')
+    elsif receiver_count > 0 && source_count == 0
+      icon_tag('glyphicon-arrow-right')
+    elsif receiver_count == 0 && source_count > 0
+      icon_tag('glyphicon-arrow-left')
+    elsif receiver_count > 0 && source_count > 0
+      icon_tag('glyphicon-transfer')
+    else
+      icon_tag('glyphicon-unchecked')
+    end
+  end
 end

app/views/agents/_table.html.erb

@@ -1,6 +1,7 @@
 <div class='table-responsive'>
   <table class='table table-striped'>
     <tr>
+      <th></th>
       <th><%= sortable_column 'name', 'asc' %></th>
       <th><%= sortable_column 'created_at', 'desc', name: 'Age' %></th>
       <th>Schedule</th>
@@ -14,6 +15,9 @@
 
     <% @agents.each do |agent| %>
       <tr>
+        <td class='<%= "agent-unavailable" if agent.unavailable? %>'>
+          <%= agent_type_icon(agent) %>
+        </td>
         <td class='<%= "agent-unavailable" if agent.unavailable? %>'>
           <%= link_to agent.name, agent_path(agent, return: (defined?(return_to) && return_to) || request.path) %>
           <br/>