```ruby
# frozen_string_literal: true

require_dependency "#{Rails.root}/lib/wiki_course_edits"

class DeleteCourseWorker
  include Sidekiq::Worker
  sidekiq_options unique: :until_executed

  def self.schedule_deletion(course:, current_user:)
    perform_async(course.id, current_user.id)
  end

  def perform(course_id, current_user_id)
    course = Course.find(course_id)
    current_user = User.find(current_user_id)
    course.destroy
    WikiCourseEdits.new(action: :update_course,
                        course: course,
                        current_user: current_user,
                        delete: true)
  end
end
```

Add logging of when a course is deleted
user
```ruby
# frozen_string_literal: true

require_dependency "#{Rails.root}/lib/wiki_course_edits"

class DeleteCourseWorker
  include Sidekiq::Worker
  sidekiq_options unique: :until_executed

  def self.schedule_deletion(course:, current_user:)
    perform_async(course.id, current_user.id)
  end

  def perform(course_id, current_user_id)
    course = Course.find(course_id)
    current_user = User.find(current_user_id)

    # Logging to know who performed the deletion
    Raven.capture_message 'course deletion',
                          level: 'info',
                          extra: {
                            course_slug: course.slug,
                            course: course.as_json,
                            participants: course_users(course),
                            username: current_user.username
                          }
    # destroy the course, clean up the on-wiki copy if necessary
    course.destroy
    WikiCourseEdits.new(action: :update_course,
                        course: course,
                        current_user: current_user,
                        delete: true)
  end

  def course_users(course)
    course.courses_users.includes(:user).map do |courses_user|
      [courses_user.user.username, courses_user.role]
    end
  end
end
```
assistant