lujanfernaud/prevy

# frozen_string_literal: true

# == Schema Information
#
# Table name: attendances
#
#  id                :bigint(8)        not null, primary key
#  created_at        :datetime         not null
#  updated_at        :datetime         not null
#  attended_event_id :bigint(8)
#  attendee_id       :bigint(8)
#
# Indexes
#
#  index_attendances_on_attended_event_id  (attended_event_id)
#  index_attendances_on_attendee_id        (attendee_id)
#

class Attendance < ApplicationRecord
  POINTS = 5

  belongs_to :attendee,       class_name: "User", touch: true
  belongs_to :attended_event, class_name: "Event",
              counter_cache: :attendees_count

  before_create  -> { user_group_points.increase by: POINTS }
  before_destroy -> { user_group_points.decrease by: POINTS }

  private

    def user_group_points
      UserGroupPoints.find_or_create_by!(user: attendee, group: group)
    end

    def group
      attended_event.group
    end
end