nixos_flake_config/packages/viber/default.nix

{
  alsa-lib,
  brotli,
  cups,
  curl,
  bubblewrap,
  bash,
  writeShellScriptBin,
  dbus,
  dpkg,
  expat,
  fetchurl,
  fontconfig,
  freetype,
  glib,
  gst_all_1,
  harfbuzz,
  krb5,
  lcms,
  lib,
  libcap,
  libevent,
  libGL,
  libGLU,
  libopus,
  libpulseaudio,
  libwebp,
  libxkbcommon,
  libxml2,
  libxslt,
  makeWrapper,
  mesa,
  nspr,
  nss,
  openssl,
  snappy,
  stdenv,
  systemd,
  wayland,
  xorg,
  zlib,
  zstd,
  ...
}:
stdenv.mkDerivation {
  pname = "viber";
  version = "23.2.0.3";

  src = fetchurl {
    # Official link: https://download.cdn.viber.com/cdn/desktop/Linux/viber.deb
    url = "https://download.cdn.viber.com/cdn/desktop/Linux/viber.deb";
    hash = "sha256-9WHiI2WlsgEhCPkrQoAunmF6lSb2n5RgQJ2+sdnSShM=";
  };

  nativeBuildInputs = [ makeWrapper ];
  buildInputs = [ dpkg ];

  dontUnpack = true;

  libPath = lib.makeLibraryPath [
    alsa-lib
    brotli
    cups
    curl
    dbus
    expat
    fontconfig
    freetype
    glib
    gst_all_1.gst-plugins-bad
    gst_all_1.gst-plugins-base
    gst_all_1.gstreamer
    harfbuzz
    krb5
    lcms
    libcap
    libevent
    libGLU
    libGL
    libopus
    libpulseaudio
    libwebp
    libxkbcommon
    libxml2
    libxslt
    mesa
    nspr
    nss
    openssl
    snappy
    stdenv.cc.cc
    systemd
    wayland
    zlib
    zstd

    xorg.libICE
    xorg.libSM
    xorg.libX11
    xorg.libxcb
    xorg.libXcomposite
    xorg.libXcursor
    xorg.libXdamage
    xorg.libXext
    xorg.libXfixes
    xorg.libXi
    xorg.libXrandr
    xorg.libXrender
    xorg.libXScrnSaver
    xorg.libXtst
    xorg.xcbutilimage
    xorg.xcbutilkeysyms
    xorg.xcbutilrenderutil
    xorg.xcbutilwm
    xorg.libxkbfile
  ];

  installPhase =
    let
      viberWrap = writeShellScriptBin "viberWrap" ''
        ${bubblewrap}/bin/bwrap --bind / / \
        --dev /dev \
        --tmpfs $HOME \
        --bind  $HOME/.ViberPC/ $HOME/.ViberPC \
        --bind  $HOME/Downloads/ $HOME/Downloads \
        $@
      '';
    in
    ''
      dpkg-deb -x $src $out
      mkdir -p $out/bin

      # Soothe nix-build "suspicions"
      chmod -R g-w $out

      for file in $(find $out -type f \( -perm /0111 -o -name \*.so\* \) ); do
        patchelf --set-interpreter "$(cat $NIX_CC/nix-support/dynamic-linker)" "$file" || true
        patchelf --set-rpath $libPath:$out/opt/viber/lib $file || true
      done

      # qt.conf is not working, so override everything using environment variables
      wrapProgram $out/opt/viber/Viber \
        --set QT_PLUGIN_PATH "$out/opt/viber/plugins" \
        --set QT_XKB_CONFIG_ROOT "${xorg.xkeyboardconfig}/share/X11/xkb" \
        --set QTCOMPOSE "${xorg.libX11.out}/share/X11/locale" \
        --set QML2_IMPORT_PATH "$out/opt/viber/qml"

      echo "#!${bash}/bin/bash" > $out/bin/viber
      echo "${viberWrap}/bin/viberWrap $out/opt/viber/Viber" >> $out/bin/viber
      chmod +x $out/bin/viber

      mv $out/usr/share $out/share
      rm -rf $out/usr

      # Fix the desktop link
      substituteInPlace $out/share/applications/viber.desktop \
        --replace /opt/viber/Viber $out/opt/viber/Viber \
        --replace /usr/share/ $out/share/
    '';
  dontStrip = true;
  dontPatchELF = true;

  meta = {
    homepage = "https://www.viber.com";
    description = "An instant messaging and Voice over IP (VoIP) app";
    sourceProvenance = with lib.sourceTypes; [ binaryNativeCode ];
    license = lib.licenses.unfree;
    platforms = [ "x86_64-linux" ];
    maintainers = with lib.maintainers; [ jagajaga ];
  };
}