{pkgs, config, ...}:

###### interface
let
  inherit (pkgs.lib) mkOption mkIf;

  options = {
    services = {
      samba = {

        enable = mkOption {
          default = false;
          description = "
            Whether to enable the samba server. (to communicate with, and provide windows shares)
          ";
        };

      };
    };
  };
in

###### implementation

let
  
  user = "smbguest";
  group = "smbguest";
 
  smbConfig = ./smb.conf ;

  inherit (pkgs) samba;

in


  

mkIf config.services.samba.enable {
  require = [
    options
  ];

  users = {
    extraUsers = [
      { name = user;
        description = "Samba service user";
        group = group;
      }
    ];
    
    extraGroups = [
      { name = group;
      }
    ];
  };

  services = {
    extraJobs = [{
      name = "samba";
      job = ''

        description "Samba Service"

        start on network-interfaces/started
        stop on network-interfaces/stop

        start script

          if ! test -d /home/smbd ; then 
            mkdir -p /home/smbd
            chown ${user} /home/smbd
            chmod a+rwx /home/smbd
          fi

          if ! test -d /var/samba ; then
            mkdir -p /var/samba/locks /var/samba/cores/nmbd  /var/samba/cores/smbd /var/samba/cores/winbindd
          fi

          ${samba}/sbin/nmbd -D  -s ${smbConfig} &
          ${samba}/sbin/smbd -D  -s ${smbConfig} &
          ${samba}/sbin/winbindd -B -s ${smbConfig} &

          ln -fs ${smbConfig} /var/samba/config

        end script

        respawn ${samba}/sbin/nmbd -D -s ${smbConfig} &; ${samba}/sbin/smbd -D -s ${smbConfig} &; ${samba}/sbin/winbindd -B &

      '';
    }];
  };
}