275 lines
7.8 KiB
Ruby
275 lines
7.8 KiB
Ruby
# frozen_string_literal: true
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class NotifyService < BaseService
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include Redisable
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NON_EMAIL_TYPES = %i(
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admin.report
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admin.sign_up
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update
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poll
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status
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moderation_warning
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# TODO: this probably warrants an email notification
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severed_relationships
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).freeze
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class DismissCondition
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def initialize(notification)
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@recipient = notification.account
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@sender = notification.from_account
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@notification = notification
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end
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def dismiss?
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blocked = @recipient.unavailable?
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blocked ||= from_self? && %i(poll severed_relationships moderation_warning).exclude?(@notification.type)
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return blocked if message? && from_staff?
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blocked ||= domain_blocking?
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blocked ||= @recipient.blocking?(@sender)
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blocked ||= @recipient.muting_notifications?(@sender)
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blocked ||= conversation_muted?
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blocked ||= blocked_mention? if message?
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blocked
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end
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private
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def blocked_mention?
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FeedManager.instance.filter?(:mentions, @notification.target_status, @recipient)
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end
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def message?
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@notification.type == :mention
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end
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def from_staff?
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@sender.local? && @sender.user.present? && @sender.user_role&.overrides?(@recipient.user_role)
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end
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def from_self?
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@recipient.id == @sender.id
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end
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def domain_blocking?
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@recipient.domain_blocking?(@sender.domain) && !following_sender?
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end
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def conversation_muted?
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@notification.target_status && @recipient.muting_conversation?(@notification.target_status.conversation)
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end
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def following_sender?
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@recipient.following?(@sender)
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end
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end
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class FilterCondition
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NEW_ACCOUNT_THRESHOLD = 30.days.freeze
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NEW_FOLLOWER_THRESHOLD = 3.days.freeze
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NON_FILTERABLE_TYPES = %i(
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admin.sign_up
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admin.report
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poll
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update
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account_warning
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).freeze
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def initialize(notification)
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@notification = notification
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@recipient = notification.account
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@sender = notification.from_account
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@policy = NotificationPolicy.find_or_initialize_by(account: @recipient)
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end
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def filter?
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return false unless Notification::PROPERTIES[@notification.type][:filterable]
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return false if override_for_sender?
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from_limited? ||
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filtered_by_not_following_policy? ||
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filtered_by_not_followers_policy? ||
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filtered_by_new_accounts_policy? ||
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filtered_by_private_mentions_policy?
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end
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private
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def filtered_by_not_following_policy?
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@policy.filter_not_following? && not_following?
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end
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def filtered_by_not_followers_policy?
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@policy.filter_not_followers? && not_follower?
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end
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def filtered_by_new_accounts_policy?
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@policy.filter_new_accounts? && new_account?
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end
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def filtered_by_private_mentions_policy?
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@policy.filter_private_mentions? && not_following? && private_mention_not_in_response?
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end
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def not_following?
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!@recipient.following?(@sender)
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end
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def not_follower?
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follow = Follow.find_by(account: @sender, target_account: @recipient)
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follow.nil? || follow.created_at > NEW_FOLLOWER_THRESHOLD.ago
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end
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def new_account?
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@sender.created_at > NEW_ACCOUNT_THRESHOLD.ago
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end
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def override_for_sender?
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NotificationPermission.exists?(account: @recipient, from_account: @sender)
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end
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def from_limited?
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@sender.silenced? && not_following?
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end
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def private_mention_not_in_response?
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@notification.type == :mention && @notification.target_status.direct_visibility? && !response_to_recipient?
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end
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def response_to_recipient?
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return false if @notification.target_status.in_reply_to_id.nil?
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statuses_that_mention_sender.positive?
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end
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def statuses_that_mention_sender
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Status.count_by_sql([<<-SQL.squish, id: @notification.target_status.in_reply_to_id, recipient_id: @recipient.id, sender_id: @sender.id, depth_limit: 100])
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WITH RECURSIVE ancestors(id, in_reply_to_id, mention_id, path, depth) AS (
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SELECT s.id, s.in_reply_to_id, m.id, ARRAY[s.id], 0
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FROM statuses s
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LEFT JOIN mentions m ON m.silent = FALSE AND m.account_id = :sender_id AND m.status_id = s.id
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WHERE s.id = :id
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UNION ALL
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SELECT s.id, s.in_reply_to_id, m.id, st.path || s.id, st.depth + 1
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FROM ancestors st
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JOIN statuses s ON s.id = st.in_reply_to_id
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LEFT JOIN mentions m ON m.silent = FALSE AND m.account_id = :sender_id AND m.status_id = s.id
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WHERE st.mention_id IS NULL AND NOT s.id = ANY(path) AND st.depth < :depth_limit
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)
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SELECT COUNT(*)
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FROM ancestors st
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JOIN statuses s ON s.id = st.id
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WHERE st.mention_id IS NOT NULL AND s.visibility = 3
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SQL
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end
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end
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def call(recipient, type, activity)
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return if recipient.user.nil?
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@recipient = recipient
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@activity = activity
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@notification = Notification.new(account: @recipient, type: type, activity: @activity)
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# For certain conditions we don't need to create a notification at all
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return if dismiss?
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@notification.filtered = filter?
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@notification.save!
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# It's possible the underlying activity has been deleted
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# between the save call and now
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return if @notification.activity.nil?
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if @notification.filtered?
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update_notification_request!
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else
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push_notification!
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push_to_conversation! if direct_message?
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send_email! if email_needed?
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end
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rescue ActiveRecord::RecordInvalid
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nil
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end
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private
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def dismiss?
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DismissCondition.new(@notification).dismiss?
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end
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def filter?
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FilterCondition.new(@notification).filter?
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end
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def update_notification_request!
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return unless @notification.type == :mention
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notification_request = NotificationRequest.find_or_initialize_by(account_id: @recipient.id, from_account_id: @notification.from_account_id)
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notification_request.last_status_id = @notification.target_status.id
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notification_request.save
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end
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def push_notification!
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push_to_streaming_api! if subscribed_to_streaming_api?
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push_to_web_push_subscriptions!
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end
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def push_to_streaming_api!
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redis.publish("timeline:#{@recipient.id}:notifications", Oj.dump(event: :notification, payload: InlineRenderer.render(@notification, @recipient, :notification)))
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end
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def subscribed_to_streaming_api?
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redis.exists?("subscribed:timeline:#{@recipient.id}") || redis.exists?("subscribed:timeline:#{@recipient.id}:notifications")
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end
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def push_to_conversation!
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AccountConversation.add_status(@recipient, @notification.target_status)
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end
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def direct_message?
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@notification.type == :mention && @notification.target_status.direct_visibility?
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end
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def push_to_web_push_subscriptions!
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::Web::PushNotificationWorker.push_bulk(web_push_subscriptions.select { |subscription| subscription.pushable?(@notification) }) { |subscription| [subscription.id, @notification.id] }
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end
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def web_push_subscriptions
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@web_push_subscriptions ||= ::Web::PushSubscription.where(user_id: @recipient.user.id).to_a
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end
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def subscribed_to_web_push?
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web_push_subscriptions.any?
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end
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def send_email!
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return unless NotificationMailer.respond_to?(@notification.type)
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NotificationMailer
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.with(recipient: @recipient, notification: @notification)
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.public_send(@notification.type)
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.deliver_later(wait: 2.minutes)
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end
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def email_needed?
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(!recipient_online? || always_send_emails?) && send_email_for_notification_type?
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end
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def recipient_online?
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subscribed_to_streaming_api? || subscribed_to_web_push?
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end
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def always_send_emails?
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@recipient.user.settings.always_send_emails
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end
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def send_email_for_notification_type?
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NON_EMAIL_TYPES.exclude?(@notification.type) && @recipient.user.settings["notification_emails.#{@notification.type}"]
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end
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end
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