{ config
, stdenv
, pkgs
, fetchurl
, dpkg
, lib
, gnome2
, libgnome_keyring
, desktop_file_utils
, python2
, nodejs
, libnotify
, alsaLib
, atk
, glib
, pango
, gdk_pixbuf
, cairo
, freetype
, fontconfig
, dbus
, nss
, nspr
, cups
, expat
, wget
, udev
, xorg
, libgcrypt
, makeWrapper
, gcc-unwrapped
, coreutils
}:

stdenv.mkDerivation rec {
   name = "${pkgname}-${version}";
   pkgname = "nylas-mail";
   version = "2.0.31";
   subVersion = "e675deb";

   src = fetchurl {
     url = "https://edgehill.s3-us-west-2.amazonaws.com/${version}-${subVersion}/linux-deb/x64/NylasMail.deb";
     sha256 = "b036956174f998bd4a2662a1f59cb4a302465b3ed06c487de88ff2721e372f6e";
   };

   # Build dependencies
   propagatedBuildInputs = [
     gnome2.gtk
     gnome2.GConf
     libgnome_keyring
     desktop_file_utils
     python2
     nodejs
     libnotify
     alsaLib
     atk
     glib
     pango
     gdk_pixbuf
     cairo
     freetype
     fontconfig
     dbus
     nss
     nspr
     cups
     expat
     wget
     udev
     gcc-unwrapped
     coreutils
     xorg.libXScrnSaver
     xorg.libXi
     xorg.libXtst
     xorg.libXcursor
     xorg.libXdamage
     xorg.libXrandr
     xorg.libXcomposite
     xorg.libXext
     xorg.libXfixes
     xorg.libXrender
     xorg.libX11
     xorg.libxkbfile
   ];

   # Runtime dependencies
   buildInputs = [ makeWrapper gnome2.gnome_keyring ];

   phases = [ "unpackPhase" ];

   unpackPhase = ''
    mkdir -p $out

    ${dpkg}/bin/dpkg-deb -x $src unpacked
    mv unpacked/usr/* $out/

    # Fix path in desktop file
    substituteInPlace $out/share/applications/nylas-mail.desktop \
        --replace /usr/bin/nylas-mail $out/bin/nylas-mail

     # Patch librariess
     noderp=$(patchelf --print-rpath $out/share/nylas-mail/libnode.so)
     patchelf --set-rpath $noderp:$out/lib:${stdenv.cc.cc.lib}/lib:${xorg.libxkbfile.out}/lib:${lib.makeLibraryPath propagatedBuildInputs } \
         $out/share/nylas-mail/libnode.so

     ffrp=$(patchelf --print-rpath $out/share/nylas-mail/libffmpeg.so)
     patchelf --set-rpath $ffrp:$out/lib:${stdenv.cc.cc.lib}/lib:${lib.makeLibraryPath propagatedBuildInputs } \
         $out/share/nylas-mail/libffmpeg.so

     # Patch binaries
     binrp=$(patchelf --print-rpath $out/share/nylas-mail/nylas)
     patchelf --interpreter "$(cat $NIX_CC/nix-support/dynamic-linker)" \
         --set-rpath $binrp:$out/lib:${stdenv.cc.cc.lib}/lib:${lib.makeLibraryPath propagatedBuildInputs } \
         $out/share/nylas-mail/nylas

    wrapProgram $out/share/nylas-mail/nylas --set LD_LIBRARY_PATH "${xorg.libxkbfile}/lib:${pkgs.gnome3.libgnome_keyring}/lib";

    # Fix path to bash so apm can install plugins.
    substituteInPlace $out/share/nylas-mail/resources/apm/bin/apm \
          --replace /bin/bash ${stdenv.shell}

    wrapProgram $out/share/nylas-mail/resources/apm/bin/apm \
        --set PATH "${coreutils}/bin"
    patchelf --interpreter "$(cat $NIX_CC/nix-support/dynamic-linker)" \
             --set-rpath ${gcc-unwrapped.lib}/lib \
        $out/share/nylas-mail/resources/apm/bin/node
   '';

   meta = with stdenv.lib; {
     description = "Open-source mail client built on the modern web with Electron, React, and Flux";
     longDescription = ''
        Nylas Mail is an open-source mail client built on the modern web with Electron, React, and Flux. It is designed to be extensible, so it's easy to create new experiences and workflows around email. To run nylas-mail, an additional manual step is required. Make sure to have services.gnome3.gnome-keyring.enable = true; in your configuration.nix before running nylas-mail. If you happen to miss this step, you should remove ~/.nylas-mail and "~/.config/Nylas Mail" for a blank setup".
     '';
     license = licenses.gpl3;
     maintainers = with maintainers; [ johnramsden ];
     homepage = https://nylas.com;
   };
}