infra/nix/pkgs/dcpj4110dw/default.nix

{
  pkgsi686Linux,
  stdenv,
  fetchurl,
  dpkg,
  makeWrapper,
  coreutils,
  ghostscript,
  gnugrep,
  gnused,
  which,
  lib,
  cups,
  a2ps,
  gawk,
  file,
  proot,
  bash,
}:
let
  model = "dcpj4110dw";
  version = "3.0.1-1";
  src = fetchurl {
    url = "https://download.brother.com/welcome/dlf005595/${model}lpr-${version}.i386.deb";
    sha256 = "sha256-ryKDsSkabAD2X3WLmeqjdB3+4DXdJ0qUz3O64DV+ixw=";
  };
  reldir = "opt/brother/Printers/${model}/";
in
rec {
  driver = pkgsi686Linux.stdenv.mkDerivation rec {
    inherit src version;
    name = "${model}drv-${version}";

    nativeBuildInputs = [
      dpkg
      makeWrapper
    ];

    unpackPhase = "dpkg-deb -x $src $out";

    installPhase = ''
      # need to use i686 glibc here, these are 32bit proprietary binaries
      patchelf --set-interpreter "$(cat $NIX_CC/nix-support/dynamic-linker)" \
        $out/${reldir}/lpd/br${model}filter

      mkdir -p $out/lib/cups/filter/
      ln -s $out/${reldir}/lpd/filter${model} $out/lib/cups/filter/brother_lpdwrapper_${model}

      # use proot to bind /opt for the filter
      mv $out/${reldir}/lpd/filter${model} $out/${reldir}/lpd/.wrapped_filter${model}

      cat <<-EOF >$out/${reldir}/lpd/.wrapper_inner_filter${model}
        export PATH=\$PATH:${
          lib.makeBinPath [
            gawk
            file
            a2ps
            coreutils
            ghostscript
            gnugrep
            gnused
            which
          ]
        }
        exec $out/${reldir}/lpd/.wrapped_filter${model}
      EOF
      chmod +x $out/${reldir}/lpd/.wrapper_inner_filter${model}

      cat <<-EOF >$out/${reldir}/lpd/filter${model}
      #!${bash}/bin/bash
      exec ${proot}/bin/proot \
        -b /nix/store:/nix/store \
        -b $out/opt:/opt \
        -b ${cups}/share:/usr/share/cups \
        $out/${reldir}/lpd/.wrapper_inner_filter${model}
      EOF
      chmod +x $out/${reldir}/lpd/filter${model}
    '';

    meta = {
      description = "Brother ${lib.strings.toUpper model} driver";
      homepage = "http://www.brother.com/";
      sourceProvenance = with lib.sourceTypes; [ binaryNativeCode ];
      # license = lib.licenses.unfree;
      platforms = [
        "x86_64-linux"
        "i686-linux"
      ];
      maintainers = [ lib.maintainers.steveej ];
    };
  };

  cupswrapper = stdenv.mkDerivation rec {
    inherit version;

    src = fetchurl {
      url = "https://download.brother.com/welcome/dlf005597/${model}cupswrapper-${version}.i386.deb";
      sha256 = "sha256-nwpuuXqBrEh5tye14gFLrezktTz6kq7HtnGqdBbgGkk=";
    };

    name = "${model}cupswrapper-${version}";

    nativeBuildInputs = [
      dpkg
      makeWrapper
    ];
    buildInputs = [
      cups
      ghostscript
      a2ps
      gawk
    ];

    unpackPhase = "dpkg-deb -x $src $out";

    installPhase = ''
      wrapProgram $out/${reldir}/cupswrapper/cupswrapper${model} \
        --prefix PATH : ${
          lib.makeBinPath [
            coreutils
            ghostscript
            gnugrep
            gnused
          ]
        }

      patchelf --set-interpreter "$(cat $NIX_CC/nix-support/dynamic-linker)" \
        $out/${reldir}/cupswrapper/brcupsconfpt1

      mkdir -p $out/share/cups/model
      ln -s $out/${reldir}/cupswrapper/brother_${model}_printer_en.ppd $out/share/cups/model/
    '';

    meta = {
      description = "Brother ${lib.strings.toUpper model} CUPS wrapper driver";
      homepage = "http://www.brother.com/";
      sourceProvenance = with lib.sourceTypes; [ binaryNativeCode ];
      license = lib.licenses.gpl2;
      platforms = [
        "x86_64-linux"
        "i686-linux"
      ];
      maintainers = [ lib.maintainers.steveej ];
    };
  };
}