# 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
    ./disko.nix
  ];

  # No systemd emergency mode (can't reliably be accessed over SSH)
  systemd.enableEmergencyMode = false;

  # ZFS requires a hostId
  networking.hostId = "bb7d707a";

  # Boot configuration for LUKS + ZFS
  boot.loader.efi.canTouchEfiVariables = true;
  boot.loader.efi.efiSysMountPoint = "/boot";
  boot.loader.systemd-boot.enable = true;

  # ZFS support
  boot.supportedFilesystems = [ "zfs" ];
  boot.zfs = {
    requestEncryptionCredentials = [ "tank" ]; # Load key for tank pool
    forceImportRoot = false;
  };

  # ZFS services
  services.zfs = {
    autoScrub = {
      enable = true;
      interval = "weekly";
    };
    autoSnapshot = {
      enable = true;
      frequent = 4; # 15-minute snapshots
      hourly = 24;
      daily = 7;
      weekly = 4;
      monthly = 12;
    };
    trim.enable = true;
  };

  networking.interfaces.enp2s0 = {
    ipv4.addresses = [
      {
        address = "192.168.1.240";
        prefixLength = 24;
      }
    ];
    ipv6.addresses = [
      {
        address = "fd7d:587a:4300:1::240";
        prefixLength = 64;
      }
    ];
    ipv4.routes = [
      {
        address = "192.168.1.0";
        prefixLength = 24;
        via = "192.168.1.1";
      }
    ];
    useDHCP = false;
  };
  networking.nameservers = [ "192.168.1.1" ];
  networking.defaultGateway = {
    address = "192.168.1.1";
    interface = "enp2s0";
  };

  networking.hostName = "box"; # Define your hostname.

  # The global useDHCP flag is deprecated, therefore explicitly set to false here.
  networking.useDHCP = false;
  networking.interfaces.wlp3s0.useDHCP = true;

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

  programs.gnupg.agent.enable = true;
  programs.gnupg.agent.pinentryPackage = pkgs.pinentry-curses;
  programs.gnupg.agent.enableSSHSupport = true;

  # This value determines the NixOS release with which your system is to be
  # compatible, in order to avoid breaking some software such as database
  # servers. You should change this only after NixOS release notes say you
  # should.
  system.stateVersion = "19.09"; # Did you read the comment?

}