module Validations::SetupValidations
  def validate_irproduct_other(record)
    if intermediate_product_rent_type?(record) && record.irproduct_other.blank?
      record.errors.add :irproduct_other, I18n.t("validations.setup.intermediate_rent_product_name.blank")
    end
  end

  def validate_location(record)
    location_status_during_startdate = status_during_startdate(record.startdate, record.location&.location_deactivation_periods, record.location&.available_from)
    if location_status_during_startdate.present? && location_status_during_startdate[:status] == :deactivated
      record.errors.add :location_id, I18n.t("validations.setup.startdate.during_deactivated_location", postcode: record.location.postcode, date: location_status_during_startdate[:date].to_formatted_s(:govuk_date))
    end

    if location_status_during_startdate.present? && location_status_during_startdate[:status] == :reactivating_soon
      record.errors.add :location_id, I18n.t("validations.setup.startdate.location_reactivating_soon", postcode: record.location.postcode, date: location_status_during_startdate[:date].to_formatted_s(:govuk_date), deactivation_date: location_status_during_startdate[:deactivation_date].to_formatted_s(:govuk_date))
    end

    if location_status_during_startdate.present? && location_status_during_startdate[:status] == :activating_soon
      record.errors.add :location_id, I18n.t("validations.setup.startdate.location_activating_soon", postcode: record.location.postcode, date: location_status_during_startdate[:date].to_formatted_s(:govuk_date))
    end
  end

  def validate_scheme(record)
    location_status_during_startdate = status_during_startdate(record.startdate, record.location&.location_deactivation_periods, record.location&.available_from)
    if location_status_during_startdate.present? && location_status_during_startdate[:status] == :deactivated
      record.errors.add :scheme_id, I18n.t("validations.setup.startdate.during_deactivated_location", postcode: record.location.postcode, date: location_status_during_startdate[:date].to_formatted_s(:govuk_date))
    end

    if location_status_during_startdate.present? && location_status_during_startdate[:status] == :reactivating_soon
      record.errors.add :scheme_id, I18n.t("validations.setup.startdate.location_reactivating_soon", postcode: record.location.postcode, date: location_status_during_startdate[:date].to_formatted_s(:govuk_date), deactivation_date: location_status_during_startdate[:deactivation_date].to_formatted_s(:govuk_date))
    end

    if location_status_during_startdate.present? && location_status_during_startdate[:status] == :activating_soon
      record.errors.add :scheme_id, I18n.t("validations.setup.startdate.location_activating_soon", postcode: record.location.postcode, date: location_status_during_startdate[:date].to_formatted_s(:govuk_date))
    end

    scheme_status_during_startdate = status_during_startdate(record.startdate, record.scheme&.scheme_deactivation_periods, record.scheme&.available_from)
    if scheme_status_during_startdate.present? && scheme_status_during_startdate[:status] == :deactivated
      record.errors.add :scheme_id, I18n.t("validations.setup.startdate.during_deactivated_scheme", name: record.scheme.service_name, date: scheme_status_during_startdate[:date].to_formatted_s(:govuk_date))
    end

    if scheme_status_during_startdate.present? && scheme_status_during_startdate[:status] == :reactivating_soon
      record.errors.add :scheme_id, I18n.t("validations.setup.startdate.scheme_reactivating_soon", name: record.scheme.service_name, date: scheme_status_during_startdate[:date].to_formatted_s(:govuk_date), deactivation_date: scheme_status_during_startdate[:deactivation_date].to_formatted_s(:govuk_date))
    end

    if scheme_status_during_startdate.present? && scheme_status_during_startdate[:status] == :activating_soon
      record.errors.add :scheme_id, I18n.t("validations.setup.startdate.scheme_activating_soon", name: record.scheme.service_name, date: scheme_status_during_startdate[:date].to_formatted_s(:govuk_date))
    end
  end

private

  def intermediate_product_rent_type?(record)
    record.rent_type == 5
  end

  def status_during_startdate(date, deactivation_periods, available_from)
    return if date.blank?

    closest_reactivation = deactivation_periods.reverse.find { |period| period.reactivation_date.present? && date.between?(period.deactivation_date, period.reactivation_date - 1.day) } if deactivation_periods.present?
    return { status: :reactivating_soon, date: closest_reactivation.reactivation_date, deactivation_date: closest_reactivation.deactivation_date } if closest_reactivation.present?
    return { status: :activating_soon, date: available_from } if available_from.present? && available_from > date

    open_deactivation = deactivation_periods.deactivations_without_reactivation.first if deactivation_periods.present?
    return { status: :deactivated, date: open_deactivation.deactivation_date } if open_deactivation.present? && open_deactivation.deactivation_date <= date
  end
end