{ lib, config, ... }:
let
  inherit (lib)
    mkOption
    concatStringsSep
    ;
  inherit (lib.types)
    listOf
    str
    ;
in
{
  options = {
    protocols.rstp = mkOption {
      type = listOf str;
      description = ''
        List of interfaces on which Rapid Spanning Tree Protocol should be enabled.
      '';
    };
    netconf.xmls.protocols = mkOption {
      type = str;
      visible = false;
      readOnly = true;
    };
  };
  config.netconf.xmls.protocols =
    let
      rstps = map (intf: "<interface><name>${intf}</name></interface>") config.protocols.rstp;
    in
    ''
      <protocols>
        <rstp operation="replace">
          ${concatStringsSep "" rstps}
        </rstp>
      </protocols>
    '';
}