allow to resent copy email

app/controllers/submissions_preview_controller.rb

@@ -4,37 +4,31 @@ class SubmissionsPreviewController < ApplicationController
   skip_before_action :authenticate_user!
   skip_authorization_check
 
-  PRELOAD_ALL_PAGES_AMOUNT = 200
-
-  TTL = 20.minutes
+  TTL = 40.minutes
 
   def show
-    @submission = Submission.find_by!(slug: params[:slug])
+    submitter = Submitter.find_signed(params[:sig], purpose: :download_completed) if params[:sig].present?
+
+    signature_valid =
+      if submitter && submitter.submission.slug == params[:slug]
+        @submission = submitter.submission
+
+        true
+      end
+
+    @submission ||= Submission.find_by!(slug: params[:slug])
 
     if !@submission.submitters.all?(&:completed_at?) && current_user.blank?
       raise ActionController::RoutingError, 'Not Found'
     end
 
-    unless submission_valid_ttl?(@submission)
+    if !submission_valid_ttl?(@submission) && !signature_valid
       Rollbar.info("TTL: #{@submission.id}") if defined?(Rollbar)
 
       return redirect_to submissions_preview_completed_path(@submission.slug)
     end
 
-    ActiveRecord::Associations::Preloader.new(
-      records: [@submission],
-      associations: [:template, { template_schema_documents: :blob }]
-    ).call
-
-    total_pages =
-      @submission.template_schema_documents.sum { |e| e.metadata.dig('pdf', 'number_of_pages').to_i }
-
-    if total_pages < PRELOAD_ALL_PAGES_AMOUNT
-      ActiveRecord::Associations::Preloader.new(
-        records: @submission.template_schema_documents,
-        associations: [:blob, { preview_images_attachments: :blob }]
-      ).call
-    end
+    @submission = Submissions.preload_with_pages(@submission)
 
     render 'submissions/show', layout: 'plain'
   end
@@ -42,7 +36,7 @@ class SubmissionsPreviewController < ApplicationController
   def completed
     @submission = Submission.find_by!(slug: params[:submissions_preview_slug])
 
-    render :completed, layout: 'plain'
+    render :completed, layout: 'form'
   end
 
   private