Fixed mail issue

app/jobs/spree_gift_card/send_email_job.rb

@@ -5,13 +5,13 @@ class SendEmailJob < ApplicationJob
     queue_as :gift_card
 
     def perform(gift_card_id)
-      gift_card = Spree::GiftCard.find_by(id: gift_card_id)
+      gift_card = ::Spree::GiftCard.find_by(id: gift_card_id)
 
       if gift_card.present?
         order_id = gift_card.line_item.order.id
 
-        Spree::OrderMailer.gift_card_receiver(gift_card.id, order_id).deliver_later
-        Spree::OrderMailer.gift_card_sender(gift_card.id, order_id).deliver_later
+        ::Spree::OrderMailer.gift_card_receiver(gift_card.id, order_id).deliver_later
+        ::Spree::OrderMailer.gift_card_sender(gift_card.id, order_id).deliver_later
       end
     end
   end

app/mailers/spree_gift_card/spree/order_mailer_decorator.rb

@@ -0,0 +1,35 @@
+# frozen_string_literal: true
+
+module SpreeGiftCard
+  module Spree
+    module OrderMailerDecorator
+      def gift_card_receiver(card_id, order_id)
+        @gift_card = ::Spree::GiftCard.find_by(id: card_id)
+        @order = ::Spree::Order.find_by(id: order_id)
+        subject = "#{::Spree::Store.current.name} #{::Spree.t('gift_card_email.subject')}"
+        @gift_card.update_columns(sent_at: Time.now, gift_card_notified: true)
+
+        mail(
+          to: @gift_card.email,
+          from: from_address,
+          subject: subject
+        )
+      end
+
+      def gift_card_sender(card_id, order_id)
+        @gift_card = ::Spree::GiftCard.find_by(id: card_id)
+        return unless @gift_card.sender_email
+
+        @order = ::Spree::Order.find_by(id: order_id)
+        subject = "#{::Spree::Store.current.name} Notification! Gift Card delivered!"
+        mail(
+          to: @gift_card.sender_email,
+          from: from_address,
+          subject: subject
+        )
+      end
+    end
+  end
+end
+
+::Spree::OrderMailer.prepend SpreeGiftCard::Spree::OrderMailerDecorator

app/models/spree_gift_card/order_decorator.rb

@@ -16,7 +16,7 @@ def gift_card_notification
 
         if gift_cards.present? && !gift_card_notified
           gift_cards.each do |gift_card|
-            SpreeGiftCard::SendEmailJob.set(wait_until: gift_card&.delivery_on).perform_later(gift_card.id)
+            ::SpreeGiftCard::SendEmailJob.set(wait_until: gift_card&.delivery_on).perform_later(gift_card.id)
           end
         end
 

lib/tasks/spree_gift_card.rake

@@ -1,6 +1,6 @@
 namespace :gift_cards do
   desc 'Sends outstanding gift card emails'
   task send: :environment do
-    SpreeGiftCard::SendEmailJob.perform_now
+    ::SpreeGiftCard::SendEmailJob.perform_now
   end
 end