Support setting retires_on and retirement_warn for services from dialogs

https://bugzilla.redhat.com/show_bug.cgi?id=1498600

app/models/service/dialog_properties.rb

@@ -10,8 +10,15 @@ module Service::DialogProperties
   def apply_dialog_settings
     dialog_options = options[:dialog] || {}
 
-    %w(dialog_service_name dialog_service_description).each do |field_name|
-      send(field_name, dialog_options[field_name]) if dialog_options.key?(field_name)
+    %w(
+      name
+      description
+      retires_on
+      retires_in_days
+      retires_in_hours
+    ).each do |field_name|
+      dialog_field_name = "dialog_service_#{field_name}"
+      send(dialog_field_name, dialog_options[dialog_field_name]) if dialog_options.key?(dialog_field_name)
     end
   end
 
@@ -22,4 +29,39 @@ def dialog_service_name(value)
   def dialog_service_description(value)
     self.description = value if value.present?
   end
+
+  def dialog_service_retires_on(value)
+    dialog_service_retire_on_date(Time.zone.parse(value))
+  end
+
+  def dialog_service_retires_in_hours(value)
+    dialog_service_retire_on_date(Time.zone.now + value.to_i.hours)
+  end
+
+  def dialog_service_retires_in_days(value)
+    dialog_service_retire_on_date(Time.zone.now + value.to_i.days)
+  end
+
+  def dialog_service_retire_on_date(value)
+    self.retires_on = value
+    dialog_service_retirement_warning
+  end
+
+  def dialog_service_retirement_warning
+    return if retires_on.blank?
+    dialog_options = options[:dialog] || {}
+
+    self.retirement_warn =
+      if dialog_options.key?('dialog_service_retirement_warn_on')
+        Time.zone.parse(dialog_options['dialog_service_retirement_warn_on'])
+      elsif dialog_options.key?('dialog_service_retirement_warn_in_days')
+        Time.zone.now + dialog_options['dialog_service_retirement_warn_in_days'].to_i.days
+      elsif dialog_options.key?('dialog_service_retirement_warn_in_hours')
+        Time.zone.now + dialog_options['dialog_service_retirement_warn_in_hours'].to_i.hours
+      elsif dialog_options.key?('dialog_service_retirement_warn_offset_days')
+        retires_on - dialog_options['dialog_service_retirement_warn_offset_days'].to_i.days
+      elsif dialog_options.key?('dialog_service_retirement_warn_offset_hours')
+        retires_on - dialog_options['dialog_service_retirement_warn_offset_hours'].to_i.hours
+      end
+  end
 end