# 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, lib, ... }:

#let nvidia-offload = pkgs.writeShellScriptBin "nvidia-offload" ''
#    export __NV_PRIME_RENDER_OFFLOAD=1
#    export __NV_PRIME_RENDER_OFFLOAD_PROVIDER=NVIDIA-G0
#    export __GLX_VENDOR_LIBRARY_NAME=nvidia
#    export __VK_LAYER_NV_optimus=NVIDIA_only
#    exec -a "$0" "$@"
#  '';
# in
{
  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;

  # networking.hostName = "nixos"; # Define your hostname.
  # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.

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

  # The global useDHCP flag is deprecated, therefore explicitly set to false here.
  # Per-interface useDHCP will be mandatory in the future, so this generated config
  # replicates the default behaviour.
  networking.useDHCP = false;
  networking.interfaces.wlp2s0.useDHCP = true;
  networking.networkmanager.enable = true;

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

  hardware.bluetooth.enable = true;
  services.blueman.enable = true;

  # 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 multi monitor stuff
#  services.xserver.videoDrivers = [ "nvidia" ];
  #hardware.nvidia.package = config.boot.kernelPackages.nvidiaPackages.beta;
#  hardware.opengl.driSupport = true;
#  hardware.opengl.driSupport32Bit = true;
  #hardware.nvidia.package = config.boot.kernelPackages.nvidiaPackages.legacy_340;
#  hardware.nvidia.modesetting.enable = true;
#  services.xserver.displayManager.sessionCommands = ''
#    ${lib.getBin pkgs.xorg.xrandr}/bin/xrandr --setprovideroutputsource 2 0
#  '';

#  services.xserver.desktopManager.plasma5.runUsingSystemd = true;
# services.xserver.displayManager.sessionPackages = [
#     (pkgs.plasma-workspace.overrideAttrs
#       (old: { passthru.providedSessions = [ "plasmawayland" ]; }))
#   ];


#  hardware.nvidia.prime = {
    # Bus ID of the AMD GPU. You can find it using lspci, either under 3D or VGA
#    amdgpuBusId = "PCI:4:0:0";

    # Bus ID of the NVIDIA GPU. You can find it using lspci, either under 3D or VGA
#    nvidiaBusId = "PCI:1:0:0";
#  };

#  services.displayManager = {
#    session = [
#      {
#        name = "home-manager";
        #start = ''
        #  ${pkgs.runtimeShell} $HOME/.hm-xsession & waitPID=$!
        #'';
#        manage = "window";
#      };
#    ];
#  };

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

  # 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.billy = {
    isNormalUser = true;
    extraGroups = [ "wheel" ]; # Enable ‘sudo’ for the user.
  };

  # List packages installed in system profile. To search, run:
  # $ nix search wget
  environment.systemPackages = with pkgs; [
    blueman
    firefox
    git
    pciutils
    nix-diff
    nodejs-14_x
    notepadqq
    nvidia-offload
    slack
    sudo # So notepadqq can try as root.
    wget
    zoom-us
  ];

  nixpkgs.config = {
    allowUnfree = true;
  };

  # 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;
  # };

  # Select internationalisation properties.
  # i18n.defaultLocale = "en_US.UTF-8";
  # console = {
  #   font = "Lat2-Terminus16";
  #   keyMap = "us";
  # };

  # 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;

  # 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 = "21.05"; # Did you read the comment?

}