Adding unified streamable notifications

app/services/notify_service.rb

@@ -0,0 +1,36 @@
+# frozen_string_literal: true
+
+class NotifyService < BaseService
+  def call(recipient, activity)
+    @recipient    = recipient
+    @activity     = activity
+    @notification = Notification.new(account: @recipient, activity: @activity)
+
+    return if blocked?
+
+    create_notification
+    send_email if email_enabled?
+  end
+
+  private
+
+  def blocked?
+    blocked = false
+    blocked ||= @recipient.id == @notification.from_account.id
+    blocked ||= @recipient.blocking?(@notification.from_account)
+    blocked
+  end
+
+  def create_notification
+    @notification.save!
+    FeedManager.instance.broadcast(@recipient.id, type: 'notification', message: FeedManager.instance.inline_render(@recipient, 'api/v1/notifications/show', @notification))
+  end
+
+  def send_email
+    NotificationMailer.send(@notification.type, @recipient, @notification).deliver_later
+  end
+
+  def email_enabled?
+    @recipient.user.settings(:notification_emails).send(@notification.type)
+  end
+end