# 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’).

{ nixos-hardware, config, pkgs, ... }:

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

  # Bootloader.
  boot.loader.systemd-boot.enable = true;
  boot.loader.efi.canTouchEfiVariables = true; 
  boot.kernelPackages = pkgs.linuxPackages_zen;

  boot = {
    # TODO: confirm this works
    # https://forums.developer.nvidia.com/t/550-54-14-cannot-create-sg-table-for-nvkmskapimemory-spammed-when-launching-chrome-on-wayland/284775/26
    initrd.kernelModules = [ "nvidia" "i915" "nvidia_modeset" "nvidia_uvm" "nvidia_drm" ];
    # extraModulePackages = [ config.boot.kernelPackages.nvidia_x11 ];
    kernelParams = [ "nvidia-drm.fbdev=1" ];
  };

  hardware = {
    openrazer.enable = true;
    openrazer.users = [ "emenel" ];
    opengl.enable = true;

    nvidia = {
      package = config.boot.kernelPackages.nvidiaPackages.mkDriver {
        version = "555.58.02";
        sha256_64bit = "sha256-xctt4TPRlOJ6r5S54h5W6PT6/3Zy2R4ASNFPu8TSHKM=";
        sha256_aarch64 = "sha256-8hyRiGB+m2hL3c9MDA/Pon+Xl6E788MZ50WrrAGUVuY=";
        openSha256 = "sha256-8hyRiGB+m2hL3c9MDA/Pon+Xl6E788MZ50WrrAGUVuY=";
        settingsSha256 = "sha256-ZpuVZybW6CFN/gz9rx+UJvQ715FZnAOYfHn5jt5Z2C8=";
        persistencedSha256 = "sha256-xctt4TPRlOJ6r5S54h5W6PT6/3Zy2R4ASNFPu8TSHKM=";
      };

      # Modesetting is required.
      modesetting.enable = true;

      # Nvidia power management. Experimental, and can cause sleep/suspend to fail.
      # Enable this if you have graphical corruption issues or application crashes after waking
      # up from sleep. This fixes it by saving the entire VRAM memory to /tmp/ instead
      # of just the bare essentials.
      powerManagement.enable = true;

      # Fine-grained power management. Turns off GPU when not in use.
      # Experimental and only works on modern Nvidia GPUs (Turing or newer).
      powerManagement.finegrained = false;

      # Use the NVidia open source kernel module (not to be confused with the
      # independent third-party "nouveau" open source driver).
      # Support is limited to the Turing and later architectures. Full list of
      # supported GPUs is at:
      # https://github.com/NVIDIA/open-gpu-kernel-modules#compatible-gpus
      # Only available from driver 515.43.04+
      # Currently alpha-quality/buggy, so false is currently the recommended setting.
      open = false;

      #forceFullCompositionPipeline = true;

      prime = {
        amdgpuBusId = "PCI:0:2:0";
        nvidiaBusId = "PCI:41:0:0";
        offload = {
          enable = true;
          enableOffloadCmd = true;
        };

        #reverseSync.enable = true;
        #sync.enable = true;
      };
      nvidiaSettings = true;
    };
  };

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

  networking.hostName = "eddie";

  # Enable networking
  networking.networkmanager.enable = true;

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

  # Select internationalisation properties.
  i18n.defaultLocale = "en_CA.UTF-8";
  
  nix.nixPath = [ "nixos-config=/home/emenel/source/nixos" ];
  
  nix.package = pkgs.nixFlakes;
  nix.settings.experimental-features = [ "nix-command" "flakes" ];

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

  #services.greetd = {
  #  enable = true;
  #  settings = rec {
  #    initial_session = {
  #      command = "${pkgs.greetd.tuigreet}/bin/tuigreet --sessions ${config.services.xserver.displayManager.sessionData.desktops}/share/xsessions:${config.services.xserver.displayManager.sessionData.desktops}/share/wayland-sessions --remember --remember-user-session";
  #      user = "greeter";
  #    };
  #    default_session = initial_session;
  #  };
  #};


  #security.pam.services.greetd.enableGnomeKeyring = true;

  # Enable the GNOME Desktop Environment.
  services.xserver.displayManager.gdm.enable = true;
  services.xserver.desktopManager.gnome.enable = true;

  programs.dconf.enable = true;

  # Configure keymap in X11
  services.xserver.xkb = {
    layout = "us";
    variant = "";
  };

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

  # Enable sound with pipewire.
  hardware.pulseaudio.enable = false;
  security.rtkit.enable = true;
  services.pipewire = {
    enable = true;
    alsa.enable = true;
    alsa.support32Bit = true;
    pulse.enable = true;
    # If you want to use JACK applications, uncomment this
    #jack.enable = true;

    # use the example session manager (no others are packaged yet so this is enabled by default,
    # no need to redefine it in your config for now)
    #media-session.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.emenel = {
    isNormalUser = true;
    description = "emenel";
    extraGroups = [ "networkmanager" "wheel" ];
    openssh.authorizedKeys.keys = [ "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFvtBCUQEi7r6mXdaULEaMMvGH1IWZBX9tXpjbIECar2 matt@emenel.ca" ];
    packages = with pkgs; [
      git
    ];
  };

  # enable fish and launch it from bash for interactive shells
  programs.fish.enable = true;
  programs.bash = {
	    interactiveShellInit = ''
	      if [[ $(${pkgs.procps}/bin/ps --no-header --pid=$PPID --format=comm) != "fish" && -z ''${BASH_EXECUTION_STRING} ]]
	      then
	        shopt -q login_shell && LOGIN_OPTION='--login' || LOGIN_OPTION=""
	        exec ${pkgs.fish}/bin/fish $LOGIN_OPTION
	      fi
	    '';
	  };

  services.flatpak.enable = true;

  # Allow unfree packages
  nixpkgs.config.allowUnfree = true;

  # List packages installed in system profile. To search, run:
  environment.systemPackages = with pkgs; [
    wget
    home-manager
    curl
    git
    rsync
  ];

  programs.steam.enable = 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;
  # };

  # List services that you want to enable:

  # Enable the OpenSSH daemon.
  services.openssh.enable = true;
  #serivces.openssh.permitRootLogin = "no";
  #services.openssh.passwordAuthentication = 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 = "24.05"; # Did you read the comment?

}