{ config, pkgs, lib, ... }:
with lib;
let
  cfg = config.aviallon.desktop;
  generalCfg = config.aviallon.general;
in {
  options.aviallon.desktop = {
    enable = mkOption {
      default = true;
      example = false;
      type = types.bool;
      description = "Enable desktop related configuration";
    };
    environment = mkOption {
      default = "plasma";
      example = "gnome";
      type = with types; enum [ "plasma" "gnome" ];
      description = "What Desktop Environment to use";
    };
    layout = mkOption {
      type = types.str;
      default = "fr";
      example = "us";
      description = "Default keyboard layout for X and console";
    };
    audio = {
      noise-filter.strength = mkOption {
        description = "Noise reduction strength (from 0 to 100)";
        type = types.float;
        default = 80.0;
        example = 0.0;
      };
      noise-filter.enable = mkOption {
        description = "Wether to enable noise filter at all";
        type = types.bool;
        default = true;
        example = false;
      };
    };
    graphics = {
      shaderCache = {
        cleanupInterval = mkOption {
          description = "Interval for cache cleanup (tmpfiles.d format). Set to '-' to disable.";
          type = types.str;
          default = "180d";
          example = "-";
        };
      };
    };
  };

  imports = [
    (mkRemovedOptionModule [ "aviallon" "desktop" "graphics" "shaderCache" "path" ] "Now always relative to $XDG_CACHE_HOME" )
  ];

  config = mkIf cfg.enable (mkMerge [
    {
      aviallon.network.backend = mkDefault "NetworkManager";

      aviallon.boot.kernel.package = pkgs.linuxKernel.kernels.linux_xanmod;

      # Enable the X11 windowing system.
      services.xserver.enable = true;
      # services.xserver.tty = mkOverride 70 1;

      systemd.services."getty@tty1".enable = mkOverride 50 false;
      systemd.services."autovt@tty1".enable = mkOverride 50 false;

      # Configure keymap in X11
      services.xserver.layout = cfg.layout;
      services.xserver.xkbOptions = "eurosign:e";


      aviallon.boot.cmdline = {
        splash = mkIf (!generalCfg.debug) "";
        "udev.log_level" = mkIf (!generalCfg.debug) 3;
        preempt = "full";
        "usbhid.mousepoll" = 1; # 1ms latency for mouse
        "usbhid.kbpoll" = 4; # 4ms latency for kb
      };
      boot.initrd.verbose = generalCfg.debug;
      boot.consoleLogLevel = mkIf (!generalCfg.debug) 1;

      console.enable = mkDefault false; # Completly disable console by default
      security.polkit.enable = true; # Better interactive privilege prompts

      # Enable running X11 apps on Wayland
      programs.xwayland.enable = true;
      
      # Enable touchpad support (enabled default in most desktopManager).
      services.xserver.libinput.enable = true;

      hardware.opengl.driSupport = true;


      environment.systemPackages = with pkgs; [
        p7zip
      ];


      security.sudo.extraConfig =
        ''
        # Keep X and Wayland related variables for better GUI integration
        Defaults:root,%wheel env_keep+=DISPLAY
        Defaults:root,%wheel env_keep+=XAUTHORITY

        Defaults:root,%wheel env_keep+=WAYLAND_DISPLAY
        Defaults:root,%wheel env_keep+=WAYLAND_SOCKET
        Defaults:root,%wheel env_keep+=XDG_RUNTIME_DIR
        ''
      ;

    }
    (mkIf (!generalCfg.minimal) {
      boot.plymouth.enable = mkDefault true;

      fonts.enableDefaultFonts = true;

      hardware.acpilight.enable = true;
      hardware.opentabletdriver.enable = true;

      hardware.bluetooth = {
        enable = true;
        package = pkgs.bluezFull;
      };

      hardware.opengl.driSupport32Bit = mkDefault cfg.gaming.enable;
    
      environment.systemPackages = with pkgs; [
        glxinfo
        vdpauinfo
        libva-utils
        spotify
        nextcloud-client
        unstable.telegram-desktop
        signal-desktop
        vlc
        veracrypt

        # Spell check support
        hunspell
        hunspellDicts.fr-any

        aspell
        aspellDicts.fr
      ];

      aviallon.programs.allowUnfreeList = [
        "spotify" "spotify-unwrapped"

        "veracrypt"
      ];

    
      aviallon.programs.libreoffice.enable = true;
    
      services.packagekit.enable = mkDefault true;
    
      # SmartCards
      services.pcscd.enable = mkDefault true;

      networking.networkmanager.plugins = [ pkgs.networkmanager-openvpn ];
    })
  ]);
}