# Edit this configuration file to define what should be installed on
# your system.  Help is available in the configuration.nix(5) man page
# and in the NixOS manual (accessible by running ‘nixos-help’).

{ config, pkgs, ... }:

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

  # Use the systemd-boot EFI boot loader.
  # boot.loader.systemd-boot.enable = true;
  # boot.loader.efi.canTouchEfiVariables = true;

  # Use the GRUB EFI boot loader.
  boot.loader.grub.enable = true;
  boot.loader.grub.devices = [ "nodev" ];
  boot.loader.grub.efiInstallAsRemovable = true;
  boot.loader.grub.efiSupport = true;
  boot.loader.grub.useOSProber = true;
  
  boot.supportedFilesystems = [ "zfs" ];
  boot.zfs.requestEncryptionCredentials = true;

  services.zfs.autoScrub.enable = true;

  networking.hostName = "n2r-WS"; # Define your hostname.
  # Pick only one of the below networking options.
  # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.
  networking.networkmanager.enable = true;  # Easiest to use and most distros use this by default.
  
  networking.hostId = "e836e1d4"; # Unique persistent machine-id [/etc/machine-id]

  # Set your time zone.
  time.timeZone = "America/New_York";

  # Configure network proxy if necessary
  # networking.proxy.default = "http://user:password@proxy:port/";
  # networking.proxy.noProxy = "127.0.0.1,localhost,internal.domain";

  # Select internationalisation properties.
  # i18n.defaultLocale = "en_US.UTF-8";
  # console = {
  #   font = "Lat2-Terminus16";
  #   keyMap = "us";
  #   useXkbConfig = true; # use xkbOptions in tty.
  # };

  # Enable the X11 windowing system.
  services.xserver.enable = true;


  # Enable the Plasma 5 Desktop Environment.
  services.xserver.displayManager.sddm.enable = true;
  services.xserver.desktopManager.plasma5.enable = true;

  # NVIDIA requires nonfree
  nixpkgs.config.allowUnfree = true;

  services.xserver.videoDrivers = [ "nvidia" ];

  hardware = {
    nvidia = {
      prime = {
        offload.enable = true; # enable to use intel gpu (hybrid mode)
        # sync.enable = true; # enable to use nvidia gpu (discrete mode)
        intelBusId = "PCI:00:02.0";
        nvidiaBusId = "PCI:01:00.1";
      };
      modesetting.enable = false;
    };

    opengl = {
      enable = true;
      extraPackages = with pkgs; [
        intel-media-driver # LIBVA_DRIVER_NAME=iHD
        vaapiIntel # LIBVA_DRIVER_NAME=i965 (older but works better for FF/Chromium)
        vaapiVdpau
        libvdpau-va-gl
      ];
      driSupport = true;
      driSupport32Bit = true;
    };
  };


  # Configure keymap in X11
  # services.xserver.layout = "us";
  # services.xserver.xkbOptions = {
  #   "eurosign:e";
  #   "caps:escape" # map caps to escape.
  # };

  # Enable CUPS to print documents.
  services.printing.enable = true;

  # Enable sound.
  sound.enable = true;
  hardware.pulseaudio.enable = true;

  # Enable touchpad support (enabled default in most desktopManager).
  services.xserver.libinput.enable = true;

  # Define a user account. Don't forget to set a password with ‘passwd’.
  users.users.n2r = {
    isNormalUser = true;
    initialPassword = "password";
    extraGroups = [ "wheel" ]; # Enable ‘sudo’ for the user.
    packages = with pkgs; [
      firefox
      # thunderbird 
    ];
  };

  # List packages installed in system profile. To search, run:
  # $ nix search wget
  environment.systemPackages = with pkgs; [
     vim_configurable # Do not forget to add an editor to edit configuration.nix! The Nano editor is also installed by default.
     wget
  ];

  # Some programs need SUID wrappers, can be configured further or are
  # started in user sessions.
  # programs.mtr.enable = true;
  # programs.gnupg.agent = {
  #   enable = true;
  #   enableSSHSupport = true;
  # };

  # List services that you want to enable:

  # Enable the OpenSSH daemon.
  services.openssh.enable = true;

  # Open ports in the firewall.
  # networking.firewall.allowedTCPPorts = [ ... ];
  # networking.firewall.allowedUDPPorts = [ ... ];
  # Or disable the firewall altogether.
  networking.firewall.enable = false;

  # Copy the NixOS configuration file and link it from the resulting system
  # (/run/current-system/configuration.nix). This is useful in case you
  # accidentally delete configuration.nix.
  # system.copySystemConfiguration = true;

  # This value determines the NixOS release from which the default
  # settings for stateful data, like file locations and database versions
  # on your system were taken. It‘s perfectly fine and recommended to leave
  # this value at the release version of the first install of this system.
  # Before changing this value read the documentation for this option
  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
  system.stateVersion = "23.05"; # Did you read the comment?

}
