{ lib
, stdenv
, copyDesktopItems
, fetchFromGitHub
, makeDesktopItem
, wrapQtAppsHook
, pkg-config
, qmake
, qtwayland
, qtsvg
, postgresql
, cups
, libxml2
}:

stdenv.mkDerivation rec {
  pname = "pgmodeler";
  version = "1.1.5";

  src = fetchFromGitHub {
    owner = "pgmodeler";
    repo = "pgmodeler";
    rev = "v${version}";
    sha256 = "sha256-VbAGdMeuIQLzcHwYoPbkC0UjzxXgW4BGlYfz32oHmms=";
  };

  nativeBuildInputs = [ pkg-config qmake wrapQtAppsHook copyDesktopItems ];
  qmakeFlags = [ "pgmodeler.pro" "CONFIG+=release" ] ++ lib.optionals stdenv.hostPlatform.isDarwin [
    "PGSQL_INC=${lib.getDev postgresql}/include"
    "PGSQL_LIB=${lib.getLib postgresql}/lib/libpq.dylib"
    "XML_INC=${libxml2.dev}/include/libxml2"
    "XML_LIB=${libxml2.out}/lib/libxml2.dylib"
    "PREFIX=${placeholder "out"}/Applications/pgModeler.app/Contents"
  ];

  # todo: libpq would suffice here. Unfortunately this won't work, if one uses only postgresql.lib here.
  buildInputs = [ postgresql qtsvg ]
    ++ lib.optionals stdenv.hostPlatform.isLinux [ qtwayland ]
    ++ lib.optionals stdenv.hostPlatform.isDarwin [ cups libxml2 ];

  desktopItems = [
    (makeDesktopItem {
      name = "pgModeler";
      exec = "pgmodeler";
      icon = "pgmodeler";
      desktopName = "PgModeler";
      genericName = "PgModeler";
      comment = meta.description;
      categories = [ "Development" ];
      startupWMClass = "pgmodeler";
    })
  ];

  postInstall = ''
    install -Dm444 apps/pgmodeler/res/windows_ico.ico $out/share/icons/hicolor/256x256/apps/pgmodeler.ico
  '' + lib.optionalString stdenv.hostPlatform.isDarwin ''
    mkdir -p $out/bin
    for item in pgmodeler pgmodeler-{cli,se,ch}
    do
      ln -s $out/Applications/pgModeler.app/Contents/MacOS/$item $out/bin
    done
  '';

  dontWrapQtApps = stdenv.hostPlatform.isDarwin;

  meta = with lib; {
    description = "Database modeling tool for PostgreSQL";
    homepage = "https://pgmodeler.io/";
    license = licenses.gpl3;
    maintainers = [ maintainers.esclear ];
    platforms = platforms.unix;
  };
}