mastodon/app/workers/web_push_notification_worker.rb

# frozen_string_literal: true

class WebPushNotificationWorker
  include Sidekiq::Worker

  sidekiq_options backtrace: true

  def perform(session_activation_id, notification_id)
    session_activation = SessionActivation.find(session_activation_id)
    notification       = Notification.find(notification_id)

    return if session_activation.web_push_subscription.nil? || notification.activity.nil?

    session_activation.web_push_subscription.push(notification)
  rescue Webpush::InvalidSubscription, Webpush::ExpiredSubscription
    # Subscription expiration is not currently implemented in any browser

    session_activation.web_push_subscription.destroy!
    session_activation.update!(web_push_subscription: nil)

    true
  rescue ActiveRecord::RecordNotFound
    true
  end
end