{ config, lib, pkgs, ... }:
with lib; let
  cfg = config.local.hardware.epson;
in
{
  options.local.hardware.epson = {
    enable = mkEnableOption "Epson printers and scanners";
  };

  config = mkIf cfg.enable {
    assertions = [
      {
        assertion = config.local.hardware.printing.enable;
        message = "epson requires printing";
      }
    ];

    services.printing.enable = true;
    hardware.sane.enable = true;

    hardware.sane.extraBackends = [
      pkgs.epkowa
    ];

    services.printing.drivers = [
      pkgs.epson_201207w
    ];
  };
}