{ lib, pkgs, inputs ? null, ... }:

pkgs.stdenv.mkDerivation rec {
  pname = "wallpaper-engine-kde-plugin";
  version = "unstable-2023-07-01";

  src = if inputs != null && inputs ? wallpaper-engine-plugin-src
    then inputs.wallpaper-engine-plugin-src
    else pkgs.fetchFromGitHub {
      owner = "catsout";
      repo = "wallpaper-engine-kde-plugin";
      rev = "9e60b364e268814a1a778549c579ad45a9b9c7bb";
      sha256 = "sha256-tKeYJvVa8jzbyZ7MQaOuCUJa+UqABolTNe3e5XNw998=";
    };

  nativeBuildInputs = with pkgs; [
    cmake
    extra-cmake-modules
    pkg-config
    libsForQt5.kpackage
    libsForQt5.plasma-framework
    libsForQt5.kdeclarative
    wrapQtAppsHook
  ];

  buildInputs = with pkgs; [
    mpv lz4 vulkan-headers vulkan-loader
    wayland wayland-protocols
    libass
    spirv-tools
    xorg.libXext
    xorg.libX11
  ] ++ (with pkgs.libsForQt5; [
    plasma-framework
    qtwebsockets
    qtwebchannel
    qtx11extras
    qtdeclarative
    qtbase
    qtmultimedia
    dbus
  ]);

  cmakeFlags = [
    "-DUSE_PLASMAPKG=ON"
    "-DQT_MAJOR_VERSION=5"
    "-DCMAKE_INSTALL_PREFIX=${placeholder "out"}"
    "-DCMAKE_INSTALL_LIBDIR=lib"
    "-DKDE_INSTALL_PLUGINDIR=${placeholder "out"}/lib/qt5/plugins"
    "-DKDE_INSTALL_QMLDIR=${placeholder "out"}/lib/qt5/qml"
    "-DPLASMA_INSTALL_WALLPAPERDIR=${placeholder "out"}/share/plasma/wallpapers"
  ];

  dontWrapQtApps = true;

  postInstall = ''
    dest="$out/share/plasma/wallpapers/com.github.catsout.wallpaperEngineKde"
    mkdir -p "$dest/contents"
    cp -r ${src}/plugin/contents/* "$dest/contents/"
    cp ${src}/plugin/metadata.desktop "$dest/"
    mkdir -p "$dest/contents/code"
    ln -sf $out/lib/qt5/qml/com/github/catsout/wallpaperEngineKde/libWallpaperEngineKde.so \
      "$dest/contents/code/libWallpaperEngineKde.so"
  '';

  meta = with lib; {
    description = "KDE wallpaper plugin integrating Wallpaper Engine";
    homepage = "https://github.com/catsout/wallpaper-engine-kde-plugin";
    license = licenses.gpl2Plus;
    platforms = platforms.linux;
    maintainers = [];
  };
}