{ pkgs ? import <nixpkgs> { } }:

# Bevy's documented Linux dependencies. `nativeBuildInputs` gives
# pkg-config on PATH (and its setup hook fills PKG_CONFIG_PATH from
# `buildInputs`). `LD_LIBRARY_PATH` covers the libs Bevy `dlopen`s at
# runtime (Vulkan loader, libxkbcommon, GL, wayland) which pkg-config
# does not handle.
#
# Source: https://bevy.org/learn/quick-start/getting-started/setup/

pkgs.mkShell {
  # `mold` + `clang` give us the fast linker pair Bevy recommends for dev
  # iteration. `.cargo/config.toml` wires clang as the linker driver and
  # passes `-fuse-ld=mold`.
  nativeBuildInputs = [ pkgs.pkg-config pkgs.mold pkgs.clang ];

  buildInputs = with pkgs; [
    udev
    alsa-lib
    vulkan-loader
    libxkbcommon
    wayland
    # X11 fallback (winit picks Wayland or X11 at runtime)
    xorg.libX11
    xorg.libXcursor
    xorg.libXi
    xorg.libXrandr
  ];

  LD_LIBRARY_PATH = pkgs.lib.makeLibraryPath (with pkgs; [
    udev
    alsa-lib
    vulkan-loader
    libxkbcommon
    wayland
    xorg.libX11
    xorg.libXcursor
    xorg.libXi
    xorg.libXrandr
  ]);
}