class Appointment < ApplicationRecord

  scope :with_status, -> (status) { where(status: status) }
  scope :alertable, -> { where(is_alert: true) }

  belongs_to :offer
  belongs_to :stylist
  belongs_to :user
  has_many :appointment_follow_ups

  validates :user_id, presence: true
  validates :offer_id, presence: true
  validates_uniqueness_of :time, scope: [:offer_id, :date], conditions: -> { where.not(status: [APPOINTMENT_STATUS[2], APPOINTMENT_STATUS[3]]) }

  before_update :refund_if_cancelled_by_s_or_a, if: -> { status_changed? and cancelled_by_admin? }

  def notification_key
    if appointment.offer
      appointment.offer_id #incase offer is deleted but appointment status stays
    else
      1
    end
  end

  private

  def refund_if_cancelled_by_s_or_a
    self.allow_refund = true
  end

end