millerson-overlay.nix/packages/loop/package.nix

{
  lib,
  stdenv,
  fetchurl,
  autoPatchelfHook,
  makeWrapper,
  wrapGAppsHook3,
  gtk3,
  glib,
  libdrm,
  mesa,
  nss,
  nspr,
  alsa-lib,
  dbus,
  cups,
  libxkbcommon,
  libx11,
  libxcomposite,
  libxdamage,
  libxext,
  libxfixes,
  libxrandr,
  libxcb,
  libxshmfence,
  systemd,
  libnotify,
  libsecret,
  libappindicator-gtk3,
  gsettings-desktop-schemas,
}:

let
  version = "6.0.3";
  pname = "loop";
in

stdenv.mkDerivation {
  inherit pname version;

  src = fetchurl {
    url = "https://artifacts.wilix.dev/repository/loop-files/loop-${version}/loop-desktop-${version}-linux-x64.tar.gz";
    hash = "sha256-xqbESTUYHumdVbxcaMi838wgCVBH05KfsBZB+QOwNhk=";
  };

  nativeBuildInputs = [
    autoPatchelfHook
    makeWrapper
    wrapGAppsHook3
  ];

  buildInputs = [
    stdenv.cc.cc.lib
    gtk3
    glib
    libdrm
    mesa
    nss
    nspr
    alsa-lib
    dbus
    cups
    libxkbcommon
    libx11
    libxcomposite
    libxdamage
    libxext
    libxfixes
    libxrandr
    libxcb
    libxshmfence
    systemd
    libnotify
    libsecret
    libappindicator-gtk3
    gsettings-desktop-schemas
    glib.bin
  ];

  dontBuild = true;
  dontStrip = true;

  installPhase = ''
    runHook preInstall

    mkdir -p "$out/share/loop" "$out/bin" "$out/share/applications" "$out/share/icons/hicolor/256x256/apps"

    cp -r . "$out/share/loop/"

    # Find and symlink the main executable
    if [ -f "$out/share/loop/loop" ]; then
      ln -s "$out/share/loop/loop" "$out/bin/loop"
    elif [ -f "$out/share/loop/Loop" ]; then
      ln -s "$out/share/loop/Loop" "$out/bin/loop"
    elif [ -f "$out/share/loop/loop-desktop" ]; then
      ln -s "$out/share/loop/loop-desktop" "$out/bin/loop"
    else
      # Try to find any executable
      for f in "$out/share/loop/"*; do
        if [ -x "$f" ] && [ ! -d "$f" ]; then
          ln -s "$f" "$out/bin/loop"
          break
        fi
      done
    fi

    # Desktop entry
    cat > "$out/share/applications/loop.desktop" << EOF
[Desktop Entry]
Name=Loop
Comment=Corporate messenger for your team
Exec=$out/bin/loop
Icon=loop
Terminal=false
Type=Application
Categories=Network;InstantMessaging;
EOF

    # Install icon if present
    if [ -f "$out/share/loop/loop-desktop.png" ]; then
      cp "$out/share/loop/loop-desktop.png" "$out/share/icons/hicolor/256x256/apps/loop.png"
    elif [ -f "$out/share/loop/app_icon.png" ]; then
      cp "$out/share/loop/app_icon.png" "$out/share/icons/hicolor/256x256/apps/loop.png"
    fi

    # Electron GPU libraries expect versioned sonames
    if [ -f "$out/share/loop/libEGL.so" ] && [ ! -e "$out/share/loop/libEGL.so.1" ]; then
      ln -s libEGL.so "$out/share/loop/libEGL.so.1"
    fi
    if [ -f "$out/share/loop/libGLESv2.so" ] && [ ! -e "$out/share/loop/libGLESv2.so.2" ]; then
      ln -s libGLESv2.so "$out/share/loop/libGLESv2.so.2"
    fi

    runHook postInstall
  '';

  postFixup = ''
    wrapProgram $out/bin/loop \
      --prefix PATH : ${glib.bin}/bin \
      --prefix LD_LIBRARY_PATH : $out/share/loop \
      --add-flags "--ozone-platform=x11"
  '';

  passthru = {
    category = "Communication";
    updateScript = [
      "nix-update"
      "--flake"
      ".#loop"
    ];
  };

  meta = with lib; {
    description = "Corporate messenger for your team";
    homepage = "https://loop.ru";
    license = licenses.unfree;
    maintainers = with maintainers; [ ];
    platforms = [ "x86_64-linux" ];
    mainProgram = "loop";
    sourceProvenance = with sourceTypes; [ binaryNativeCode ];
  };
}