{ stdenv, lib, fetchFromGitHub, fetchurl, autoconf, automake, libtool, makeWrapper
, pkgconfig, cmake, gnumake, yasm, python2
, libgcrypt, libgpgerror, libunistring
, boost, avahi, lame, autoreconfHook
, gettext, pcre-cpp, yajl, fribidi, which
, openssl, gperf, tinyxml2, taglib, libssh, swig, jre
, libX11, xproto, inputproto, libxml2
, libXt, libXmu, libXext, xextproto
, libXinerama, libXrandr, randrproto
, libXtst, libXfixes, fixesproto, systemd
, SDL, SDL2, SDL_image, SDL_mixer, alsaLib
, mesa, glew, fontconfig, freetype, ftgl
, libjpeg, jasper, libpng, libtiff
, libmpeg2, libsamplerate, libmad
, libogg, libvorbis, flac, libxslt
, lzo, libcdio, libmodplug, libass, libbluray
, sqlite, mysql, nasm, gnutls, libva, wayland
, curl, bzip2, zip, unzip, glxinfo, xdpyinfo
, libcec, libcec_platform, dcadec, libuuid
, libcrossguid, libmicrohttpd
, bluez, doxygen, giflib, glib, harfbuzz, lcms2, libidn, libpthreadstubs, libtasn1, libXdmcp
, libplist, p11_kit, zlib
, dbusSupport ? true, dbus_libs ? null
, joystickSupport ? true, cwiid ? null
, nfsSupport ? true, libnfs ? null
, pulseSupport ? true, libpulseaudio ? null
, rtmpSupport ? true, rtmpdump ? null
, sambaSupport ? true, samba ? null
, udevSupport ? true, udev ? null
, usbSupport  ? false, libusb ? null
, vdpauSupport ? true, libvdpau ? null
}:

assert dbusSupport  -> dbus_libs != null;
assert nfsSupport   -> libnfs != null;
assert pulseSupport -> libpulseaudio != null;
assert rtmpSupport  -> rtmpdump != null;
assert sambaSupport -> samba != null;
assert udevSupport  -> udev != null;
assert usbSupport   -> libusb != null && ! udevSupport; # libusb won't be used if udev is avaliable
assert vdpauSupport -> libvdpau != null;

# TODO for Kodi 18.0
# - cmake is no longer in project/cmake
# - maybe we can remove auto{conf,make} and libtool from inputs
# - check if dbus support PR has been merged and add dbus as a buildInput

let
  kodiReleaseDate = "20171115";
  kodiVersion = "17.6";
  rel = "Krypton";

  kodi_src = fetchFromGitHub {
    owner  = "xbmc";
    repo   = "xbmc";
    rev    = "${kodiVersion}-${rel}";
    sha256 = "1pwmmbry7dajwdpmc1mdygjvxna4kl38h32d71g10yf3mdm5wmz3";
  };

  kodiDependency = { name, version, rev, sha256, ... } @attrs:
    let
      attrs' = builtins.removeAttrs attrs ["name" "version" "rev" "sha256"];
    in stdenv.mkDerivation ({
      name = "kodi-${lib.toLower name}-${version}";
      src = fetchFromGitHub {
        owner = "xbmc";
        repo  = name;
        inherit rev sha256;
      };
      enableParallelBuilding = true;
    } // attrs');

  ffmpeg = kodiDependency rec {
    name    = "FFmpeg";
    version = "3.1.11";
    rev     = "${version}-${rel}-17.5"; # TODO: change 17.5 back to ${kodiVersion}
    sha256  = "0nc4sb6v1g3l11v9h5l9n44a8r40186rcbp2xg5c7vg6wcpjid13";
    preConfigure = ''
      cp ${kodi_src}/tools/depends/target/ffmpeg/{CMakeLists.txt,*.cmake} .
    '';
    buildInputs = [ gnutls libidn libtasn1 p11_kit zlib ];
    nativeBuildInputs = [ cmake nasm pkgconfig ];
  };

  # we should be able to build these externally and have kodi reference them as buildInputs.
  # Doesn't work ATM though so we just use them for the src

  libdvdcss = kodiDependency {
    name              = "libdvdcss";
    version           = "20160215";
    rev               = "2f12236bc1c92f73c21e973363f79eb300de603f";
    sha256            = "198r0q73i55ga1dvyqq9nfcri0zq08b94hy8671lg14i3izx44dd";
    buildInputs       = [ libdvdread ];
    nativeBuildInputs = [ autoreconfHook pkgconfig ];
  };

  libdvdnav = kodiDependency {
    name              = "libdvdnav";
    version           = "20170217";
    rev               = "981488f7f27554b103cca10c1fbeba027396c94a";
    sha256            = "089pswc51l3avh95zl4cpsh7gh1innh7b2y4xgx840mcmy46ycr8";
    buildInputs       = [ libdvdread ];
    nativeBuildInputs = [ autoreconfHook pkgconfig ];
  };

  libdvdread = kodiDependency {
    name              = "libdvdread";
    version           = "20160221";
    rev               = "17d99db97e7b8f23077b342369d3c22a6250affd";
    sha256            = "1gr5aq1cjr3as9mnwrw29cxn4m6f6pfrxdahkdcjy70q3ldg90sl";
    nativeBuildInputs = [ autoreconfHook pkgconfig ];
  };

in stdenv.mkDerivation rec {
    name = "kodi-${kodiVersion}";

    src = kodi_src;

    buildInputs = [
      gnutls libidn libtasn1 nasm p11_kit
      libxml2 yasm python2
      boost libmicrohttpd
      gettext pcre-cpp yajl fribidi libva
      openssl gperf tinyxml2 taglib libssh swig jre
      libX11 xproto inputproto libXt libXmu libXext xextproto
      libXinerama libXrandr randrproto libXtst libXfixes fixesproto
      SDL SDL_image SDL_mixer alsaLib
      mesa glew fontconfig freetype ftgl
      libjpeg jasper libpng libtiff libva wayland
      libmpeg2 libsamplerate libmad
      libogg libvorbis flac libxslt systemd
      lzo libcdio libmodplug libass libbluray
      sqlite mysql.lib avahi lame
      curl bzip2 zip unzip glxinfo xdpyinfo
      libcec libcec_platform dcadec libuuid
      libgcrypt libgpgerror libunistring
      libcrossguid cwiid libplist
      bluez giflib glib harfbuzz lcms2 libpthreadstubs libXdmcp
      ffmpeg
      # libdvdcss libdvdnav libdvdread
    ]
    ++ lib.optional  dbusSupport     dbus_libs
    ++ lib.optionals joystickSupport [ cwiid SDL2 ]
    ++ lib.optional  nfsSupport      libnfs
    ++ lib.optional  pulseSupport    libpulseaudio
    ++ lib.optional  rtmpSupport     rtmpdump
    ++ lib.optional  sambaSupport    samba
    ++ lib.optional  udevSupport     udev
    ++ lib.optional  usbSupport      libusb
    ++ lib.optional  vdpauSupport    libvdpau;

    nativeBuildInputs = [
      cmake
      doxygen
      makeWrapper
      which
      pkgconfig gnumake
      autoconf automake libtool # still needed for some components. Check if that is the case with 18.0
    ];

    cmakeFlags = [
      "-Dlibdvdcss_URL=${libdvdcss.src}"
      "-Dlibdvdnav_URL=${libdvdnav.src}"
      "-Dlibdvdread_URL=${libdvdread.src}"
      "-DGIT_VERSION=${kodiReleaseDate}"
      "-DENABLE_EVENTCLIENTS=ON"
      "-DENABLE_INTERNAL_CROSSGUID=OFF"
      "-DENABLE_OPTICAL=ON"
      "-DLIRC_DEVICE=/run/lirc/lircd"
    ];

    enableParallelBuilding = true;

    # 14 tests fail but the biggest issue is that every test takes 30 seconds -
    # I'm guessing there is a thing waiting to time out
    doCheck = false;

    postPatch = ''
      substituteInPlace xbmc/linux/LinuxTimezone.cpp \
        --replace 'usr/share/zoneinfo' 'etc/zoneinfo'
    '';

    preConfigure = ''
      cd project/cmake
    '';

    postInstall = ''
      for p in $(ls $out/bin/) ; do
        wrapProgram $out/bin/$p \
          --prefix PATH            ":" "${lib.makeBinPath [ python2 glxinfo xdpyinfo ]}" \
          --prefix LD_LIBRARY_PATH ":" "${lib.makeLibraryPath
              [ curl systemd libmad libvdpau libcec libcec_platform rtmpdump libass SDL2 ]}"
      done

      substituteInPlace $out/share/xsessions/kodi.desktop \
        --replace kodi-standalone $out/bin/kodi-standalone
    '';

    doInstallCheck = true;

    installCheckPhase = "$out/bin/kodi --version";

    meta = with stdenv.lib; {
      description = "Media center";
      homepage    = https://kodi.tv/;
      license     = licenses.gpl2;
      platforms   = platforms.linux;
      maintainers = with maintainers; [ domenkozar titanous edwtjo peterhoeg ];
    };
}