# {pkgs, ...}: let
#   version = "2026.01.21-11273a4";
#   hytale-launcher = pkgs.fetchzip {
#     url = "https://launcher.hytale.com/builds/release/linux/amd64/hytale-launcher-${version}.zip";
#     sha256 = "sha256-PPdYmLxAVyqSkhulZXLcaEuhofCHZ4JcDJXIQ+lBhFg=";
#   };
# in {
#   environment.systemPackages = with pkgs; [
#     # (pkgs.buildFHSEnv {
#     #   pname = "hytale";
#     #   inherit version;
#     #   targetPkgs = p:
#     #     with p; [
#     #       # Launcher
#     #       libsoup_3
#     #       gdk-pixbuf
#     #       glib
#     #       gtk3
#     #       webkitgtk_4_1
#     #
#     #       # Game
#     #       alsa-lib
#     #       icu
#     #       libGL
#     #       openssl
#     #       udev
#     #       xorg.libX11
#     #       xorg.libXcursor
#     #       xorg.libXrandr
#     #       xorg.libXi
#     #     ];
#     #   runScript = "${hytale-launcher}/hytale-launcher";
#     # })
#     hytale-launcher
#   ];
# }
#
# { pkgs }:
#
# let
#   # === AUTO-UPDATE MARKERS - DO NOT MODIFY FORMAT ===
#   version = "2026.01.24-997c2cb";
#   sha256 = "sha256-G+FFMOtLVPH2zaWQ87jymf6+JUAVFEKA4SMyuYE9MZ0=";
#   # === END AUTO-UPDATE MARKERS ===
#
#   pname = "hytale-launcher";
#   downloadUrl = "https://launcher.hytale.com/builds/release/linux/amd64/hytale-launcher-${version}.zip";
#
#   # Unwrapped derivation - extracts and patches the binary
#   hytale-launcher-unwrapped = pkgs.stdenv.mkDerivation {
#     pname = "${pname}-unwrapped";
#     inherit version;
#
#     src = pkgs.fetchurl {
#       url = downloadUrl;
#       inherit sha256;
#     };
#
#     nativeBuildInputs = with pkgs; [
#       autoPatchelfHook
#       unzip
#     ];
#
#     unpackPhase = ''
#       runHook preUnpack
#       unzip $src -d .
#       runHook postUnpack
#     '';
#
#     buildInputs = with pkgs; [
#       webkitgtk_4_1
#       gtk3
#       glib
#       gdk-pixbuf
#       libsoup_3
#       cairo
#       pango
#       at-spi2-atk
#       harfbuzz
#       glibc
#     ];
#
#     runtimeDependencies = with pkgs; [
#       libGL
#       libxkbcommon
#       xorg.libX11
#       xorg.libXcomposite
#       xorg.libXdamage
#       xorg.libXext
#       xorg.libXfixes
#       xorg.libXrandr
#     ];
#
#     # No build phase needed - just unpack and install
#     dontBuild = true;
#
#     installPhase = ''
#       runHook preInstall
#
#       mkdir -p $out/lib/hytale-launcher
#       install -m755 hytale-launcher $out/lib/hytale-launcher/
#
#       runHook postInstall
#     '';
#
#     meta = with pkgs.lib; {
#       description = "Official launcher for Hytale game (unwrapped)";
#       homepage = "https://hytale.com";
#       license = licenses.unfree;
#       sourceProvenance = with sourceTypes; [ binaryNativeCode ];
#       maintainers = [{
#         name = "Jacob Pyke";
#         email = "github@pyk.ee";
#         github = "JPyke3";
#         githubId = 13283054;
#       }];
#       platforms = [ "x86_64-linux" ];
#     };
#   };
#
#   # FHS-wrapped derivation - allows self-updates to work
#   hytale-launcher = pkgs.buildFHSEnv {
#     name = "hytale-launcher";
#     inherit version;
#
#     targetPkgs = pkgs: with pkgs; [
#       # Core dependencies
#       hytale-launcher-unwrapped
#
#       # WebKit/GTK stack (for launcher UI)
#       webkitgtk_4_1
#       gtk3
#       glib
#       gdk-pixbuf
#       libsoup_3
#       cairo
#       pango
#       at-spi2-atk
#       harfbuzz
#
#       # Graphics - OpenGL/Vulkan/EGL (for game client via SDL3)
#       libGL
#       libGLU
#       libglvnd
#       mesa
#       vulkan-loader
#       egl-wayland
#
#       # X11 (SDL3 dlopens these)
#       xorg.libX11
#       xorg.libXcomposite
#       xorg.libXdamage
#       xorg.libXext
#       xorg.libXfixes
#       xorg.libXrandr
#       xorg.libXcursor
#       xorg.libXi
#       xorg.libxcb
#       xorg.libXScrnSaver
#       xorg.libXinerama
#       xorg.libXxf86vm
#
#       # Wayland (SDL3 can use Wayland backend)
#       wayland
#       libxkbcommon
#
#       # Audio (for game client via bundled OpenAL)
#       alsa-lib
#       pipewire
#       pulseaudio
#
#       # System libraries
#       dbus
#       fontconfig
#       freetype
#       glibc
#       nspr
#       nss
#       systemd
#       zlib
#
#       # C++ runtime (needed by libNoesis.so, libopenal.so in game client)
#       stdenv.cc.cc.lib
#
#       # .NET runtime dependencies (HytaleClient is a .NET application)
#       icu
#       openssl
#       krb5
#
#       # TLS/SSL support for GLib networking (launcher)
#       glib-networking
#       cacert
#     ];
#
#     runScript = pkgs.writeShellScript "hytale-launcher-wrapper" ''
#       # Hytale data directory
#       LAUNCHER_DIR="''${XDG_DATA_HOME:-$HOME/.local/share}/Hytale"
#       LAUNCHER_BIN="$LAUNCHER_DIR/hytale-launcher"
#       BUNDLED_HASH_FILE="$LAUNCHER_DIR/.bundled_hash"
#       BUNDLED_BIN="${hytale-launcher-unwrapped}/lib/hytale-launcher/hytale-launcher"
#
#       mkdir -p "$LAUNCHER_DIR"
#
#       # Compute hash of bundled binary to detect Nix package updates
#       BUNDLED_HASH=$(sha256sum "$BUNDLED_BIN" | cut -d" " -f1)
#
#       # Copy bundled binary if needed (new install or Nix package update)
#       if [ ! -x "$LAUNCHER_BIN" ] || [ ! -f "$BUNDLED_HASH_FILE" ] || [ "$(cat "$BUNDLED_HASH_FILE")" != "$BUNDLED_HASH" ]; then
#         install -m755 "$BUNDLED_BIN" "$LAUNCHER_BIN"
#         echo "$BUNDLED_HASH" > "$BUNDLED_HASH_FILE"
#       fi
#
#       # Required environment variable from Flatpak metadata
#       export WEBKIT_DISABLE_COMPOSITING_MODE=1
#
#       # Enable GLib TLS backend (glib-networking)
#       export GIO_MODULE_DIR=/usr/lib/gio/modules
#
#       # SSL certificates
#       export SSL_CERT_FILE=/etc/ssl/certs/ca-bundle.crt
#
#       exec "$LAUNCHER_BIN" "$@"
#     '';
#
#     extraInstallCommands = ''
#       # Install desktop file
#       mkdir -p $out/share/applications
#       cat > $out/share/applications/hytale-launcher.desktop << EOF
# [Desktop Entry]
# Name=Hytale Launcher
# Comment=Official launcher for Hytale
# Exec=$out/bin/hytale-launcher
# Icon=hytale-launcher
# Terminal=false
# Type=Application
# Categories=Game;
# Keywords=hytale;game;launcher;hypixel;
# StartupWMClass=com.hypixel.HytaleLauncher
# EOF
#
#     '';
#
#     meta = with pkgs.lib; {
#       description = "Official launcher for Hytale game";
#       longDescription = ''
#         The official launcher for Hytale, developed by Hypixel Studios.
#         This package wraps the launcher from the official distribution,
#         providing FHS compatibility for self-updates.
#       '';
#       homepage = "https://hytale.com";
#       license = licenses.unfree;
#       sourceProvenance = with sourceTypes; [ binaryNativeCode ];
#       maintainers = [{
#         name = "Jacob Pyke";
#         email = "github@pyk.ee";
#         github = "JPyke3";
#         githubId = 13283054;
#       }];
#       platforms = [ "x86_64-linux" ];
#       mainProgram = "hytale-launcher";
#     };
#   };
#
# in {
#   inherit hytale-launcher hytale-launcher-unwrapped;
# }
{pkgs, ...}: let
  # === AUTO-UPDATE MARKERS - DO NOT MODIFY FORMAT ===
  version = "2026.01.24-997c2cb";
  sha256 = "sha256-G+FFMOtLVPH2zaWQ87jymf6+JUAVFEKA4SMyuYE9MZ0=";
  # === END AUTO-UPDATE MARKERS ===

  pname = "hytale-launcher";
  downloadUrl = "https://launcher.hytale.com/builds/release/linux/amd64/hytale-launcher-${version}.zip";

  # Unwrapped derivation - extracts and patches the binary
  hytale-launcher-unwrapped = pkgs.stdenv.mkDerivation {
    pname = "${pname}-unwrapped";
    inherit version;

    src = pkgs.fetchurl {
      url = downloadUrl;
      inherit sha256;
    };

    nativeBuildInputs = with pkgs; [
      autoPatchelfHook
      unzip
    ];

    unpackPhase = ''
      runHook preUnpack
      unzip $src -d .
      runHook postUnpack
    '';

    buildInputs = with pkgs; [
      webkitgtk_4_1
      gtk3
      glib
      gdk-pixbuf
      libsoup_3
      cairo
      pango
      at-spi2-atk
      harfbuzz
      glibc
    ];

    runtimeDependencies = with pkgs; [
      libGL
      libxkbcommon
      # xorg.libX11
      # xorg.libXcomposite
      # xorg.libXdamage
      # xorg.libXext
      # xorg.libXfixes
      # xorg.libXrandr
    ];

    # No build phase needed - just unpack and install
    dontBuild = true;

    installPhase = ''
      runHook preInstall

      mkdir -p $out/lib/hytale-launcher
      install -m755 hytale-launcher $out/lib/hytale-launcher/

      runHook postInstall
    '';

    meta = with pkgs.lib; {
      description = "Official launcher for Hytale game (unwrapped)";
      homepage = "https://hytale.com";
      license = licenses.unfree;
      sourceProvenance = with sourceTypes; [binaryNativeCode];
      maintainers = [
        {
          name = "Jacob Pyke";
          email = "github@pyk.ee";
          github = "JPyke3";
          githubId = 13283054;
        }
      ];
      platforms = ["x86_64-linux"];
    };
  };

  # FHS-wrapped derivation - allows self-updates to work
  hytale-launcher = pkgs.buildFHSEnv {
    name = "hytale-launcher";
    inherit version;

    targetPkgs = pkgs:
      with pkgs; [
        # Core dependencies
        hytale-launcher-unwrapped

        # WebKit/GTK stack (for launcher UI)
        webkitgtk_4_1
        gtk3
        glib
        gdk-pixbuf
        libsoup_3
        cairo
        pango
        at-spi2-atk
        harfbuzz

        # Graphics - OpenGL/Vulkan/EGL (for game client via SDL3)
        libGL
        libGLU
        libglvnd
        mesa
        vulkan-loader
        egl-wayland

        # X11 (SDL3 dlopens these)
        # xorg.libX11
        # xorg.libXcomposite
        # xorg.libXdamage
        # xorg.libXext
        # xorg.libXfixes
        # xorg.libXrandr
        # xorg.libXcursor
        # xorg.libXi
        # xorg.libxcb
        # xorg.libXScrnSaver
        # xorg.libXinerama
        # xorg.libXxf86vm

        # Wayland (SDL3 can use Wayland backend)
        wayland
        libxkbcommon

        # Audio (for game client via bundled OpenAL)
        alsa-lib
        pipewire
        pulseaudio

        # System libraries
        dbus
        fontconfig
        freetype
        glibc
        nspr
        nss
        systemd
        zlib

        # C++ runtime (needed by libNoesis.so, libopenal.so in game client)
        stdenv.cc.cc.lib

        # .NET runtime dependencies (HytaleClient is a .NET application)
        icu
        openssl
        krb5

        # TLS/SSL support for GLib networking (launcher)
        glib-networking
        cacert
      ];

    runScript = pkgs.writeShellScript "hytale-launcher-wrapper" ''
      # Hytale data directory
      LAUNCHER_DIR="''${XDG_DATA_HOME:-$HOME/.local/share}/Hytale"
      LAUNCHER_BIN="$LAUNCHER_DIR/hytale-launcher"
      BUNDLED_HASH_FILE="$LAUNCHER_DIR/.bundled_hash"
      BUNDLED_BIN="${hytale-launcher-unwrapped}/lib/hytale-launcher/hytale-launcher"

      mkdir -p "$LAUNCHER_DIR"

      # Compute hash of bundled binary to detect Nix package updates
      BUNDLED_HASH=$(sha256sum "$BUNDLED_BIN" | cut -d" " -f1)

      # Copy bundled binary if needed (new install or Nix package update)
      if [ ! -x "$LAUNCHER_BIN" ] || [ ! -f "$BUNDLED_HASH_FILE" ] || [ "$(cat "$BUNDLED_HASH_FILE")" != "$BUNDLED_HASH" ]; then
        install -m755 "$BUNDLED_BIN" "$LAUNCHER_BIN"
        echo "$BUNDLED_HASH" > "$BUNDLED_HASH_FILE"
      fi

      # Required environment variable from Flatpak metadata
      export WEBKIT_DISABLE_COMPOSITING_MODE=1

      # Enable GLib TLS backend (glib-networking)
      export GIO_MODULE_DIR=/usr/lib/gio/modules

      # SSL certificates
      export SSL_CERT_FILE=/etc/ssl/certs/ca-bundle.crt

      exec "$LAUNCHER_BIN" "$@"
    '';

    extraInstallCommands = ''
            # Install desktop file
            mkdir -p $out/share/applications
            cat > $out/share/applications/hytale-launcher.desktop << EOF
      [Desktop Entry]
      Name=Hytale Launcher
      Comment=Official launcher for Hytale
      Exec=$out/bin/hytale-launcher
      Icon=hytale-launcher
      Terminal=false
      Type=Application
      Categories=Game;
      Keywords=hytale;game;launcher;hypixel;
      StartupWMClass=com.hypixel.HytaleLauncher
      EOF

    '';

    meta = with pkgs.lib; {
      description = "Official launcher for Hytale game";
      longDescription = ''
        The official launcher for Hytale, developed by Hypixel Studios.
        This package wraps the launcher from the official distribution,
        providing FHS compatibility for self-updates.
      '';
      homepage = "https://hytale.com";
      license = licenses.unfree;
      sourceProvenance = with sourceTypes; [binaryNativeCode];
      maintainers = [
        {
          name = "Jacob Pyke";
          email = "github@pyk.ee";
          github = "JPyke3";
          githubId = 13283054;
        }
      ];
      platforms = ["x86_64-linux"];
      mainProgram = "hytale-launcher";
    };
  };
in {
  environment.systemPackages = with pkgs; [
    hytale-launcher
  ];
}