class MaintenanceSchedule < ApplicationRecord
  belongs_to :vehicle

  validates :maintenance_type, presence: true, uniqueness: { scope: :vehicle_id, case_sensitive: false }
  validates :mileage_interval, presence: true, numericality: { only_integer: true, greater_than: 0 }
  validates :time_interval, presence: true, numericality: { only_integer: true, greater_than: 0 }
  validates :baseline_odometer, presence: true, numericality: { only_integer: true, greater_than_or_equal_to: 0 }
  validates :baseline_date, presence: true
  validates :active, inclusion: { in: [ true, false ] }
  validate :baseline_date_cannot_be_in_the_future

  scope :active, -> { where(active: true) }

  private

  def baseline_date_cannot_be_in_the_future
    return if baseline_date.blank? || baseline_date <= Date.current

    errors.add(:baseline_date, "can't be in the future")
  end
end