[Fix #2002] Create missing accuse de reception messages

lib/tasks/2018_05_30_missed_ar_messages.rake

@@ -0,0 +1,29 @@
+namespace :'2018_05_30_missed_ar_messages' do
+  task restore: :environment do
+    create_commentaires(:en_construction_at, :initiated_mail_template)
+    create_commentaires(:processed_at, :closed_mail_template, Dossier.where(state: 'accepte'))
+    create_commentaires(:processed_at, :refused_mail_template, Dossier.where(state: 'refuse'))
+    create_commentaires(:processed_at, :without_continuation_mail_template, Dossier.where(state: 'sans_suite'))
+  end
+
+  def create_commentaires(date_name, template_name, dossiers = Dossier)
+    error_range = DateTime.new(2018, 05, 28, 13, 33)..DateTime.new(2018, 05, 30, 15, 39)
+
+    dossiers.includes(:procedure).where(date_name => error_range).find_each(batch_size: 100) do |dossier|
+      print "#{dossier.id}\n"
+      create_commentaire(dossier, dossier.procedure.send(template_name), dossier.send(date_name))
+    end
+  end
+
+  def create_commentaire(dossier, template, date)
+    subject = template.subject_for_dossier(dossier)
+    body = template.body_for_dossier(dossier)
+
+    Commentaire.create(
+      dossier: dossier,
+      email: I18n.t("dynamics.contact_email"),
+      body: "[#{subject}]<br><br>#{body}",
+      created_at: date
+    )
+  end
+end