# Edit this configuration file to define what should be installed on
# your system. Help is available in the configuration.nix(5) man page, on
# https://search.nixos.org/options and in the NixOS manual (`nixos-help`).

{ config, lib, pkgs, ... }:

{
  imports =
    [ # Include the results of the hardware scan.
      ./hardware-configuration.nix
      ./networks
      ./desktop
      ./virtualisation
    ];

  # Use the GNU GRUB bootloader.
  boot.loader = {
    grub = {
      enable = true;
      device = "nodev";
      efiSupport = true;
    };
    efi.canTouchEfiVariables = true;
  };

  # Catppuccin for GRUB
  catppuccin.grub = {
    enable = true;
    flavor = "mocha";
  };

  # Catppuccin for tty
  catppuccin.tty = {
    enable = true;
    flavor = "mocha";
  };

  # Use latest kernel.
  boot.kernelPackages = pkgs.linuxPackages_latest;

  # Enable NixOS flakes
  nix.settings.experimental-features = [ "nix-command" "flakes" ];

  # Set your time zone.
  time.timeZone = "Europe/Warsaw";

  # Define a user account. Don't forget to set a password with ‘passwd’.
  users.users.cln = {
    isNormalUser = true;
    description = "cln";
    password = "123"; # Change
    extraGroups = [ "wheel" "video" "render" "input" "libvirtd" ]; 
    shell = pkgs.zsh;
    home = "/home/cln";
  };

  # Shell for user
  programs.zsh.enable = true;
  programs.bash.enable = true; # In case something breaks

  swapDevices = [{ # Create a swap file
  device = "/.swapfile";
  size = 8*1024;
  }];

  # Intel GPU Drivers
  hardware.graphics = {
    enable = true;
    extraPackages = with pkgs; [
      # Required for modern Intel GPUs (Xe iGPU and ARC)
      intel-media-driver     # VA-API (iHD) userspace
      vpl-gpu-rt             # oneVPL (QSV) runtime

      # Optional (compute / tooling):
      intel-compute-runtime  # OpenCL (NEO) + Level Zero for Arc/Xe
      # NOTE: 'intel-ocl' also exists as a legacy package; not recommended for Arc/Xe.
      # libvdpau-va-gl       # Only if you must run VDPAU-only apps
    ];
  };

  environment.sessionVariables = {
    LIBVA_DRIVER_NAME = "iHD";     # Prefer the modern iHD backend
    # VDPAU_DRIVER = "va_gl";      # Only if using libvdpau-va-gl
  };

  # May help if FFmpeg/VAAPI/QSV init fails (esp. on Arc with i915):
  hardware.enableRedistributableFirmware = true;
  boot.kernelParams = [ "i915.enable_guc=3" ];

  # X related settings
  services.xserver = {
    enable = false;
    xkb.layout = "pl";
    videoDrivers = [ "modesetting" ];
  };

  # Enable pipewire 
  security.rtkit.enable = true;
  services.pipewire.wireplumber.enable = true;
  services.pipewire = {
    enable = true; # if not already enabled
    alsa.enable = true;
    alsa.support32Bit = true;
    pulse.enable = true;
    jack.enable = true;
  };

  # Bluetooth support
  hardware.bluetooth = {
    enable = true;
    powerOnBoot = true;
    settings = {
      General = {
        # Shows battery charge of connected devices on supported
        # Bluetooth adapters. Defaults to 'false'.
        Experimental = true;
        # When enabled other devices can connect faster to us, however
        # the tradeoff is increased power consumption. Defaults to
        # 'false'.
        FastConnectable = true;
      };
      Policy = {
        # Enable all controllers when they are found. This includes
        # adapters present on start as well as adapters that are plugged
        # in later on. Defaults to 'true'.
        AutoEnable = true;
      };
    };
  };

  # List packages installed in system profile.
  # You can use https://search.nixos.org/ to find more packages (and options).
  environment.systemPackages = with pkgs; [ 
  cryptsetup
  xfsprogs
  vim
  ];

  # This option defines the first version of NixOS you have installed on this particular machine,
  # and is used to maintain compatibility with application data (e.g. databases) created on older NixOS versions.
  #
  # Most users should NEVER change this value after the initial install, for any reason,
  # even if you've upgraded your system to a new NixOS release.
  #
  # This value does NOT affect the Nixpkgs version your packages and OS are pulled from,
  # so changing it will NOT upgrade your system - see https://nixos.org/manual/nixos/stable/#sec-upgrading for how
  # to actually do that.
  #
  # This value being lower than the current NixOS release does NOT mean your system is
  # out of date, out of support, or vulnerable.
  #
  # Do NOT change this value unless you have manually inspected all the changes it would make to your configuration,
  # and migrated your data accordingly.
  #
  # For more information, see `man configuration.nix` or https://nixos.org/manual/nixos/stable/options#opt-system.stateVersion .
  system.stateVersion = "26.05"; # Did you read the comment?
}