outfly/build/nix/build.nix

{ lib
, self ? null
, buildType ? "release"
, platform ? "linux"
, enableWayland ? true
, enableXorg ? true
, enableOpenGL ? true
, enableVulkan ? true
, rustPlatform
, makeDesktopItem
, pkg-config
, libxkbcommon
, alsa-lib
, libGL
, vulkan-loader
, wayland
, libXrandr
, libXcursor
, libX11
, libXi
, ... 
}:

assert (platform == "linux" ) -> (enableWayland || enableXorg);
assert (platform == "linux" ) -> (enableVulkan || enableOpenGL);

rustPlatform.buildRustPackage rec {
  name = "outfly";
  inherit buildType;
  src = ./../..;
  version = if (self ? rev) then self.rev else "dirty";

  buildNoDefaultFeatures = true;
  buildFeatures = [ "embed_assets" ] ++ lib.optionals enableXorg [ "x11" ]
    ++ lib.optionals enableWayland [ "wayland" ];

  runtimeInputs = [ libxkbcommon ] 
    ++ lib.optionals enableOpenGL [ libGL ]
    ++ lib.optionals enableXorg [ libXrandr libX11  ]
    ++ lib.optionals enableVulkan [ vulkan-loader ];

  buildInputs = [ alsa-lib.dev libXcursor libXi ] 
    ++ lib.optionals enableWayland [ wayland ];

  nativeBuildInputs = [ pkg-config ];
  doCheck = false;

  postFixup = ''
    patchelf $out/bin/outfly \
    --add-rpath ${lib.makeLibraryPath runtimeInputs}
  '';

  postPatch = ''
    find ../cargo-vendor-dir -name Cargo.toml -exec sed -i 's/^workspace = true//' {} +
  '';

  cargoLock = { lockFile = ./../../Cargo.lock; };

  desktopItems = [
    (makeDesktopItem {
      name = "outfly";
      exec = "outfly";

      desktopName = "OutFly";
      categories = [ "Game" ];
    })
  ];
}