# 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, ... }:
let
  user = "admin";
  password = "$y$j9T$EkPXmsmIMFFZ.WRrBYCxS1$P0kwo6e4.WM5DsqUcEqWC3MrZp5KfCjxffraMFZWu06";
  hostname = "jallen-nas";
  timezone = "America/Chicago";
  main-pool = ''"Main\ Pool"'';
in
{
  imports =
    [ # Include the results of the hardware scan.
      ./hardware-configuration-nas.nix
      ./nas-apps/jellyfin.nix
      ./nas-apps/swag.nix
    ];

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

  # Configure bootloader with lanzaboot and secureboot
  boot = {
    loader = {
      systemd-boot = {
        enable = true;
        configurationLimit = 2;
      };

      efi = {
        canTouchEfiVariables = true;
        efiSysMountPoint = "/boot";
      };
    };
    
    # Override kernel to latest
    kernelPackages = config.boot.zfs.package.latestCompatibleLinuxPackages;

    kernelParams = [
      "nohibernate"
    ];

    consoleLogLevel = 3;
    bootspec.enable = true;

    supportedFilesystems = [ "zfs" ];

    # zfs = {
    #   extraPools = [ 
    #     #"Main" + " " + "Pool"
    #     #main-pool
    #     #''"Safe\ SSD"''
    #     "Junk"
    #   ];
    # };
  };

  # Hardware configs
  hardware = {
    # Bluetooth
    bluetooth.enable = true;

    # Enable all firmware
    enableAllFirmware = true;

    # Disable pulse audio in favor of pipewire
    pulseaudio.enable = false;
    
    # Nvidia
    nvidia = {
      package = config.boot.kernelPackages.nvidiaPackages.beta;
      
      # Modesetting is required.
      modesetting.enable = true;

      # Nvidia power management. Experimental, and can cause sleep/suspend to fail.
      powerManagement.enable = false;

      # 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;

      # Enable the Nvidia settings menu,
      # accessible via `nvidia-settings`.
      nvidiaSettings = true;
    };
    
    # Enable OpenGL
    opengl = {
      enable = true;
      driSupport = true;
      driSupport32Bit = true;
    };
  };

  # Services configs
  services = {
    openssh.enable = true;

    # Enable firmware updates
    fwupd.enable = true;
    
    # Enable the X11 windowing system.
    xserver = {
      enable = true;

      # Load nvidia driver for Xorg and Wayland
      videoDrivers = ["nvidia"];
    
      # Enable the Plasma 6 Desktop Environment.
      displayManager = {
        sddm.enable = true;
        defaultSession = "plasmawayland";
      };
      desktopManager.plasma5.enable = true;
    };
    
    # Enable CUPS to print documents.
    printing.enable = true;
    
    # configure pipewire
    pipewire = {
      enable = true;
      alsa.enable = true;
      alsa.support32Bit = true;
      pulse.enable = true;
    };

    # enable auto discovery of printers
#    avahi = {
#      enable = true;
#      nssmdns4 = true;
#      openFirewall = true;
#    };

    # Enable Flatpak
    flatpak.enable = false;
  };

  systemd.services.nas-mounts = {
    path = [ pkgs.zfs ];
    script = ''
      zpool import -R /mnt -f "Main Pool"
      zpool import -R /mnt -f "Safe SSD"
      zpool import -R /mnt -f "Junk"
      zfs load-key -L file:///root/main-pool.key "Main Pool"
      zfs load-key -L file:///root/safe-ssd.key "Safe SSD"
      zfs mount -a
    '';
    wantedBy = [ "multi-user.target" ];
  };

  # Networking configs enp7s0
  networking = {
    hostName = hostname;
    interfaces.enp7s0.ipv4.routes = [{
      address = "10.0.1.18";
      prefixLength = 16;
    }];

    hostId = "4b501480";

    # Enable Network Manager
    networkmanager.enable = false;
  };

  # Time config
  time = {
    # Set your time zone.
    timeZone = timezone;
  };

  # Configure environment
  environment = {
    # List packages installed in system profile. To search, run:
    # $ nix search wget
    systemPackages = with pkgs; [
      vim
      wget
      nano
      efibootmgr
      sbctl
      pciutils
      vulkan-tools
      clinfo
    ];
  };

  # Configure programs
  programs = {
    fish.enable = true;
  };

  # Configure nixpkgs
  nixpkgs = {
    config = {
      # Enable non free
      allowUnfree = true;
    };
  };

  # Define a user account. Don't forget to set a password with ‘passwd’.
  users.users."${user}" = {
    isNormalUser = true;
    extraGroups = [ "wheel" "networkmanager" ]; # Enable ‘sudo’ for the user.
    initialHashedPassword = password;
    shell = pkgs.fish;
    packages = with pkgs; [
      neofetch
      git
      parted
      aspell
      aspellDicts.en
      aspellDicts.en-computers
      aspellDicts.en-science
      aha
      papirus-icon-theme
    ];
  };

  virtualisation.docker.enable = true;
  virtualisation.docker.enableNvidia = true;

  # 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.
  #
  # 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 = "23.11"; # Did you read the comment?

}