discourse/lib/bookmark_reminder_notification_handler.rb

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FEATURE: Send notifications for time-based and At Desktop bookmark reminders (#9071) * This PR implements the scheduling and notification system for bookmark reminders. Every 5 minutes a schedule runs to check any reminders that need to be sent before now, limited to **300** reminders at a time. Any leftover reminders will be sent in the next run. This is to avoid having to deal with fickle sidekiq and reminders in the far-flung future, which would necessitate having a background job anyway to clean up any missing `enqueue_at` reminders. * If a reminder is sent its `reminder_at` time is cleared and the `reminder_last_sent_at` time is filled in. Notifications are only user-level notifications for now. * All JavaScript and frontend code related to displaying the bookmark reminder notification is contained here. The reminder functionality is now re-enabled in the bookmark modal as well. * This PR also implements the "Remind me next time I am at my desktop" bookmark reminder functionality. When the user is on a mobile device they are able to select this option. When they choose this option we set a key in Redis saying they have a pending at desktop reminder. The next time they change devices we check if the new device is desktop, and if it is we send reminders using a DistributedMutex. There is also a job to ensure consistency of these reminders in Redis (in case Redis drops the ball) and the at desktop reminders expire after 20 days. * Also in this PR is a fix to delete all Bookmarks for a user via `UserDestroyer`
2020-03-12 08:16:00 +08:00
# frozen_string_literal: true
class BookmarkReminderNotificationHandler
def self.send_notification(bookmark)
return if bookmark.blank?
Bookmark.transaction do
if bookmark.post.blank? || bookmark.post.deleted_at.present?
FEATURE: Send notifications for time-based and At Desktop bookmark reminders (#9071) * This PR implements the scheduling and notification system for bookmark reminders. Every 5 minutes a schedule runs to check any reminders that need to be sent before now, limited to **300** reminders at a time. Any leftover reminders will be sent in the next run. This is to avoid having to deal with fickle sidekiq and reminders in the far-flung future, which would necessitate having a background job anyway to clean up any missing `enqueue_at` reminders. * If a reminder is sent its `reminder_at` time is cleared and the `reminder_last_sent_at` time is filled in. Notifications are only user-level notifications for now. * All JavaScript and frontend code related to displaying the bookmark reminder notification is contained here. The reminder functionality is now re-enabled in the bookmark modal as well. * This PR also implements the "Remind me next time I am at my desktop" bookmark reminder functionality. When the user is on a mobile device they are able to select this option. When they choose this option we set a key in Redis saying they have a pending at desktop reminder. The next time they change devices we check if the new device is desktop, and if it is we send reminders using a DistributedMutex. There is also a job to ensure consistency of these reminders in Redis (in case Redis drops the ball) and the at desktop reminders expire after 20 days. * Also in this PR is a fix to delete all Bookmarks for a user via `UserDestroyer`
2020-03-12 08:16:00 +08:00
return clear_reminder(bookmark)
end
create_notification(bookmark)
clear_reminder(bookmark)
end
end
def self.clear_reminder(bookmark)
Rails.logger.debug(
"Clearing bookmark reminder for bookmark_id #{bookmark.id}. reminder info: #{bookmark.reminder_at} | #{Bookmark.reminder_types[bookmark.reminder_type]}"
)
bookmark.update(
reminder_at: nil,
reminder_type: nil,
reminder_last_sent_at: Time.zone.now,
reminder_set_at: nil
)
end
def self.create_notification(bookmark)
user = bookmark.user
user.notifications.create!(
notification_type: Notification.types[:bookmark_reminder],
topic_id: bookmark.topic_id,
post_number: bookmark.post.post_number,
data: {
topic_title: bookmark.topic.title,
display_username: user.username,
bookmark_name: bookmark.name
}.to_json
)
end
end