#
#  Hyprland Configuration
#  Enable with "hyprland.enable = true;"
#
{
  config,
  lib,
  system,
  pkgs,
  unstable,
  hyprland,
  vars,
  host,
  ...
}:
with lib;
with host; {
  options = {
    hyprland = {
      enable = mkOption {
        type = types.bool;
        default = false;
      };
    };
  };

  config = mkIf (config.hyprland.enable) {
    #wlwm.enable = true; # Wayland Window Manager

    environment = {
      # variables = {
      #   #WLR_NO_HARDWARE_CURSORS="1";         # Needed for VM
      #   #WLR_RENDERER_ALLOW_SOFTWARE="1";
      #   XDG_CURRENT_DESKTOP = "Hyprland";
      #   XDG_SESSION_TYPE = "wayland";
      #   XDG_SESSION_DESKTOP = "Hyprland";
      # };
      # sessionVariables =
      #   if hostName == "desktop"
      #   then {
      #     GBM_BACKEND = "nvidia-drm";
      #     #__GL_GSYNC_ALLOWED = "0";
      #     #__GL_VRR_ALLOWED = "0";
      #     #WLR_DRM_NO_ATOMIC = "1";
      #     __GLX_VENDOR_LIBRARY_NAME = "nvidia";
      #     #_JAVA_AWT_WM_NONREPARENTING = "1";
      #
      #     QT_QPA_PLATFORM = "wayland";
      #     QT_WAYLAND_DISABLE_WINDOWDECORATION = "1";
      #
      #     GDK_BACKEND = "wayland";
      #     WLR_NO_HARDWARE_CURSORS = "1";
      #     MOZ_ENABLE_WAYLAND = "1";
      #     NIXOS_OZONE_WL = "1";
      #   }
      #   else {
      #     QT_QPA_PLATFORM = "wayland";
      #     QT_WAYLAND_DISABLE_WINDOWDECORATION = "1";
      #
      #     GDK_BACKEND = "wayland";
      #     WLR_NO_HARDWARE_CURSORS = "1";
      #     MOZ_ENABLE_WAYLAND = "1";
      #   };
      systemPackages = with pkgs; [
        grim # Grab Images
        slurp # Region Selector
        wl-clipboard # Clipboard
        wlr-randr # Monitor Settings
      ];
    };

    programs = {
      hyprland = {
        # Window Manager
        enable = true;
        package = hyprland.packages.${pkgs.system}.hyprland;
        nvidiaPatches =
          if hostName == "desktop"
          then true
          else false;
      };
    };

    nix.settings = {
      substituters = ["https://hyprland.cachix.org"];
      trusted-public-keys = ["hyprland.cachix.org-1:a7pgxzMz7+chwVL3/pzj6jIBMioiJM7ypFP8PwtkuGc="];
    }; # Cache
  };
}