module Validations::Sales::SaleInformationValidations
  include CollectionTimeHelper
  include MoneyFormattingHelper

  def validate_practical_completion_date_before_saledate(record)
    return if record.saledate.blank? || record.hodate.blank?

    if record.hodate > record.saledate
      record.errors.add :hodate, I18n.t("validations.sale_information.hodate.must_be_before_saledate")
      record.errors.add :saledate, I18n.t("validations.sale_information.saledate.must_be_after_hodate")
    end
  end

  def validate_years_living_in_property_before_purchase(record)
    return unless record.proplen&.nonzero?

    case record.type
    when 18
      record.errors.add :type, I18n.t("validations.sale_information.proplen.social_homebuy")
      record.errors.add :proplen, I18n.t("validations.sale_information.proplen.social_homebuy")
    when 28, 29
      record.errors.add :type, I18n.t("validations.sale_information.proplen.rent_to_buy")
      record.errors.add :proplen, I18n.t("validations.sale_information.proplen.rent_to_buy")
    end
  end

  def validate_exchange_date(record)
    return unless record.exdate && record.saledate

    if record.exdate > record.saledate
      record.errors.add :exdate, I18n.t("validations.sale_information.exdate.must_be_before_saledate")
      record.errors.add :saledate, I18n.t("validations.sale_information.saledate.must_be_after_exdate")
    end

    if record.saledate - record.exdate >= 1.year
      record.errors.add :exdate, :over_a_year_from_saledate, message: I18n.t("validations.sale_information.exdate.must_be_less_than_1_year_from_saledate")
      record.errors.add :saledate, I18n.t("validations.sale_information.saledate.must_be_less_than_1_year_from_exdate")
    end
  end

  def validate_previous_property_unit_type(record)
    return unless record.fromprop && record.frombeds

    if record.frombeds != 1 && record.fromprop == 2
      record.errors.add :frombeds, I18n.t("validations.sale_information.previous_property_type.property_type_bedsit")
      record.errors.add :fromprop, I18n.t("validations.sale_information.previous_property_type.property_type_bedsit")
    end
  end

  def validate_discounted_ownership_value(record)
    return unless record.saledate && collection_start_year_for_date(record.saledate) >= 2024
    return unless record.value && record.deposit && record.ownershipsch
    return unless record.mortgage || record.mortgageused == 2
    return unless record.discount || record.grant || record.type == 29

    if record.mortgage_deposit_and_grant_total != record.value_with_discount && record.discounted_ownership_sale?
      %i[mortgage deposit grant value discount ownershipsch].each do |field|
        record.errors.add(
          field,
          I18n.t(
            "validations.sale_information.discounted_ownership_value",
            value_with_discount: format_as_currency(record.value_with_discount),
          ),
        )
      end
    end
  end

  def validate_basic_monthly_rent(record)
    return unless record.mrent && record.ownershipsch && record.type

    if record.shared_ownership_scheme? && !record.old_persons_shared_ownership? && record.mrent > 9999
      record.errors.add :mrent, I18n.t("validations.sale_information.monthly_rent.higher_than_expected")
      record.errors.add :type, I18n.t("validations.sale_information.monthly_rent.higher_than_expected")
    end
  end
end