Permette di mettere in pausa un invio e riprenderlo senza perdere la coda.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/controllers/mailings_controller.rb

@@ -1,6 +1,6 @@
 class MailingsController < ApplicationController
   before_action :require_current_project!
-  before_action :set_mailing, only: %i[show edit update destroy queue cancel test_send test_preview refresh_recipients update_recipients preview audience update_audience]
+  before_action :set_mailing, only: %i[show edit update destroy queue pause resume cancel test_send test_preview refresh_recipients update_recipients preview audience update_audience]
   before_action :load_form_collections, only: %i[new create edit update]
 
   def index
@@ -11,8 +11,9 @@ class MailingsController < ApplicationController
     @page_title = "Invii email"
     @mailings = Mailing.for_project(current_project).includes(:mail_identity).recent
     @mail_identities_count = MailIdentity.active.count
-    @active_mailings = @mailings.select(&:sending?)
-    @paused_mailings = @active_mailings.select { |mailing| mailing.next_send_at.present? && mailing.next_send_at > Time.current }
+    @active_mailings = @mailings.select { |mailing| mailing.sending? || mailing.paused? }
+    @window_paused_mailings = @mailings.select(&:sending?).select { |mailing| mailing.next_send_at.present? && mailing.next_send_at > Time.current }
+    @paused_mailings = @window_paused_mailings
     @completed_today = @mailings.count { |mailing| mailing.sent? && mailing.completed_at&.to_date == Time.zone.today }
     @failed_open = @mailings.sum(&:failed_count)
   end
@@ -180,16 +181,42 @@ class MailingsController < ApplicationController
     redirect_to @mailing, alert: e.message
   end
 
-  def cancel
+  def pause
     unless @mailing.sending?
-      redirect_to @mailing, alert: "Solo un invio in corso può essere fermato."
+      redirect_to @mailing, alert: "Solo un invio in corso può essere messo in pausa."
+      return
+    end
+
+    remaining = @mailing.pending_count + @mailing.queued_count
+    @mailing.pause_send!
+    redirect_to dashboard_mailings_path,
+                notice: "Invio in pausa. #{@mailing.sent_count} già inviate, #{remaining} pronte per quando riprendi."
+  rescue StandardError => e
+    redirect_to @mailing, alert: e.message
+  end
+
+  def resume
+    unless @mailing.paused?
+      redirect_to @mailing, alert: "Solo un invio in pausa può essere ripreso."
+      return
+    end
+
+    @mailing.resume_send!
+    redirect_to dashboard_mailings_path, notice: "Invio ripreso da dove era rimasto."
+  rescue StandardError => e
+    redirect_to @mailing, alert: e.message
+  end
+
+  def cancel
+    unless @mailing.sending? || @mailing.paused?
+      redirect_to @mailing, alert: "Solo un invio in corso o in pausa può essere annullato."
       return
     end
 
     pending = @mailing.pending_count + @mailing.queued_count
     @mailing.cancel_send!
     redirect_to dashboard_mailings_path,
-                notice: "Invio fermato. #{@mailing.sent_count} già inviate, #{pending} annullate in coda."
+                notice: "Invio annullato. #{@mailing.sent_count} già inviate, #{pending} in coda saltate."
   rescue StandardError => e
     redirect_to @mailing, alert: e.message
   end