# frozen_string_literal: true

class PlatformCostEntry < ApplicationRecord
  DEFAULT_LABEL = "Piattaforma produzione"

  validates :month, presence: true
  validates :label, presence: true, length: { maximum: 120 }
  validates :amount_cents, numericality: { only_integer: true, greater_than: 0 }

  before_validation :normalize_month

  scope :for_month, ->(date) { where(month: date.to_date.beginning_of_month) }
  scope :ordered, -> { order(month: :desc, created_at: :desc) }

  def month=(value)
    if value.is_a?(String) && value.match?(/\A\d{4}-\d{2}\z/)
      super(Date.strptime(value, "%Y-%m"))
    else
      super(value)
    end
  end

  def amount_euros
    amount_cents.to_f / 100.0
  end

  private

  def normalize_month
    return if month.blank?

    parsed =
      case month
      when Date
        month
      when Time, ActiveSupport::TimeWithZone
        month.to_date
      when String
        if month.match?(/\A\d{4}-\d{2}\z/)
          Date.strptime(month, "%Y-%m")
        else
          Date.parse(month)
        end
      else
        Date.parse(month.to_s)
      end
    self.month = parsed.beginning_of_month
  rescue ArgumentError, TypeError
    errors.add(:month, :invalid)
  end
end