app/models/notification_reason.rb


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# Holds reasons for a notification to have been sent as well as a priority list to select which reason to use
# above the rest
class NotificationReason
  OWN_ACTIVITY = 'own_activity'.freeze
  ASSIGNED = 'assigned'.freeze
  MENTIONED = 'mentioned'.freeze

  # Priority list for selecting which reason to return in the notification
  REASON_PRIORITY = [
    OWN_ACTIVITY,
    ASSIGNED,
    MENTIONED
  ].freeze

  # returns the priority of a reason as an integer
  def self.priority(reason)
    REASON_PRIORITY.index(reason) || REASON_PRIORITY.length + 1
  end
end