class Ticket < ApplicationRecord
  # === Associations ===
  belongs_to :user
  belongs_to :ticket_type
  has_one :event, through: :ticket_type

  # === Validations ===
  validates :qr_code, presence: true, uniqueness: true
  validates :user_id, presence: true
  validates :ticket_type_id, presence: true
  validates :price_cents, presence: true, numericality: { greater_than: 0 }
  validates :status, presence: true, inclusion: { in: %w[draft active used expired refunded] }
  validates :first_name, presence: true
  validates :last_name, presence: true

  before_validation :set_price_from_ticket_type, on: :create
  before_validation :generate_qr_code, on: :create

  # Generate PDF ticket
  def to_pdf
    TicketPdfGenerator.new(self).generate
  end

  # Price in euros (formatted)
  def price_euros
    price_cents / 100.0
  end

  private

  def set_price_from_ticket_type
    return unless ticket_type
    self.price_cents = ticket_type.price_cents
  end

  def generate_qr_code
    return if qr_code.present?

    loop do
      self.qr_code = SecureRandom.uuid
      break unless Ticket.exists?(qr_code: qr_code)
    end
  end
end