class Registrar::NameserversController < RegistrarController
  load_and_authorize_resource

  def index
    if can_replace_hostnames?
      prc = Nameserver.replace_hostname_ends(
        current_user.registrar.domains.includes(
          :registrant, :nameservers, :admin_domain_contacts, :tech_domain_contacts, :domain_statuses,
          :versions, :admin_contacts, :tech_contacts, :whois_record, :dnskeys
        ),
        params[:q][:hostname_end],
        params[:hostname_end_replacement]
      )

      if prc == 'replaced_none'
        flash.now[:alert] = t(:no_hostnames_replaced)
      elsif prc == 'replaced_all'
        params[:q][:hostname_end] = params[:hostname_end_replacement]
        params[:hostname_end_replacement] = nil
        flash.now[:notice] = t(:all_hostnames_replaced)
      else
        flash.now[:warning] = t(:hostnames_partially_replaced)
      end
    end

    nameservers = current_user.registrar.nameservers.includes(:domain)
    @q = nameservers.search(params[:q])
    @q.sorts  = 'id desc' if @q.sorts.empty?
    @nameservers = @q.result.page(params[:page])
  end

  def replace_all
    @domain_params = { nameservers_attributes: { 0 => {} } }
  end

  private

  def can_replace_hostnames?
    if params[:replace] && params[:q]
      flash.now[:alert] = t('hostname_end_replacement_is_required') unless params[:hostname_end_replacement].present?
      flash.now[:alert] = t('hostname_end_is_required') unless params[:q][:hostname_end].present?
      return true if flash[:alert].blank?
    end
    false
  end
end