add template preferences

app/controllers/submissions_controller.rb

@@ -19,6 +19,8 @@ class SubmissionsController < ApplicationController
   def create
     authorize!(:create, Submission)
 
+    save_template_message(@template, params) if params[:save_message] == '1'
+
     if params[:is_custom_message] != '1'
       params.delete(:subject)
       params.delete(:body)
@@ -57,6 +59,13 @@ class SubmissionsController < ApplicationController
 
   private
 
+  def save_template_message(template, params)
+    template.preferences['request_email_subject'] = params[:subject] if params[:subject].present?
+    template.preferences['request_email_body'] = params[:body] if params[:body].present?
+
+    template.save!
+  end
+
   def submissions_params
     params.permit(submission: { submitters: [%i[uuid email phone name]] })
   end

app/controllers/templates_preferences_controller.rb

@@ -0,0 +1,22 @@
+# frozen_string_literal: true
+
+class TemplatesPreferencesController < ApplicationController
+  load_and_authorize_resource :template
+
+  def show; end
+
+  def create
+    authorize!(:update, @template)
+
+    @template.preferences = @template.preferences.merge(template_params[:preferences])
+    @template.save!
+
+    head :ok
+  end
+
+  private
+
+  def template_params
+    params.require(:template).permit(preferences: %i[bcc_completed request_email_subject request_email_body])
+  end
+end