Revert "Split notification integration into another branch"

This reverts commit 1404aa86.

app/models/ci/pipeline.rb

@@ -82,6 +82,10 @@ module Ci
           PipelineHooksWorker.perform_async(id)
         end
       end
+
+      after_transition any => [:success, :failed] do |pipeline, transition|
+        SendPipelineNotificationService.new(pipeline).execute
+      end
     end
 
     # ref can't be HEAD or SHA, can only be branch/tag name
@@ -110,6 +114,11 @@ module Ci
       project.id
     end
 
+    # For now the only user who participants is the user who triggered
+    def participants(current_user = nil)
+      [user]
+    end
+
     def valid_commit_sha
       if self.sha == Gitlab::Git::BLANK_SHA
         self.errors.add(:sha, " cant be 00000000 (branch removal)")

app/models/notification_setting.rb

@@ -32,7 +32,9 @@ class NotificationSetting < ActiveRecord::Base
     :reopen_merge_request,
     :close_merge_request,
     :reassign_merge_request,
-    :merge_merge_request
+    :merge_merge_request,
+    :failed_pipeline,
+    :success_pipeline
   ]
 
   store :events, accessors: EMAIL_EVENTS, coder: JSON

app/services/ci/send_pipeline_notification_service.rb

@@ -6,14 +6,8 @@ module Ci
       @pipeline = new_pipeline
     end
 
-    def execute(recipients)
-      email_template = "pipeline_#{pipeline.status}_email"
-
-      return unless Notify.respond_to?(email_template)
-
-      recipients.each do |to|
-        Notify.public_send(email_template, pipeline, to).deliver_later
-      end
+    def execute(recipients = nil)
+      notification_service.pipeline_finished(pipeline, recipients)
     end
   end
 end

app/services/notification_service.rb

@@ -312,6 +312,22 @@ class NotificationService
     mailer.project_was_not_exported_email(current_user, project, errors).deliver_later
   end
 
+  def pipeline_finished(pipeline, recipients = nil)
+    email_template = "pipeline_#{pipeline.status}_email"
+
+    return unless mailer.respond_to?(email_template)
+
+    recipients ||= build_recipients(
+      pipeline,
+      pipeline.project,
+      nil, # The acting user, who won't be added to recipients
+      action: pipeline.status)
+
+    recipients.each do |to|
+      mailer.public_send(email_template, pipeline, to.email).deliver_later
+    end
+  end
+
   protected
 
   # Get project/group users with CUSTOM notification level

spec/services/ci/send_pipeline_notification_service_spec.rb

@@ -23,7 +23,7 @@ describe Ci::SendPipelineNotificationService, services: true do
     shared_examples 'sending emails' do
       it 'sends emails' do
         perform_enqueued_jobs do
-          subject.execute([user.email])
+          subject.execute
         end
 
         expected_receivers = [pusher, watcher].uniq.sort_by(&:email)