# 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, ... }:

let
  fsOptions = [ "noatime" "ssd" "space_cache" "compress=lzo" ];

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

  # encrypted partitions
  boot.initrd.luks = 
    { devices =
      { "systemA".device = "/dev/disk/by-uuid/1d57fb8c-301b-4d8c-8652-dcda39910404";
        "systemB".device = "/dev/disk/by-uuid/d68d217b-5443-49ca-af1b-9f2eacb73d8b";
        "cryptswap".device = "/dev/disk/by-uuid/472d5c58-d834-4ff8-82f1-f98d627e9163";
      };
      #reusePassphrases = true;
    };

  fileSystems."/".options = fsOptions ++ [ "subvol=nixos_root" ];
  fileSystems."/home".options = fsOptions ++ [ "subvol=home" ];

  services.fstrim.enable = true;

  # powermanagement
  services.tlp.enable = true;
  powerManagement.powertop.enable = true;

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

  networking.hostName = "thinknix";
  # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.

  # Select internationalisation properties.
  i18n = {
    consoleFont = "Lat2-Terminus16";
    consoleKeyMap = "de";
    defaultLocale = "de_DE.UTF-8";
  };

  # Set your time zone.
  time.timeZone = "Europe/Berlin";

  # Some programs need SUID wrappers, can be configured further or are
  # started in user sessions.
  programs.bash.enableCompletion = true;
  # 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;
  
  networking.networkmanager.enable = true;

  # Enable CUPS to print documents.
  services.printing = 
    { enable = true;
      drivers = [ pkgs.hplip ];
    };
  # scanners
  hardware.sane = 
    { enable = true;
      extraBackends = [ pkgs.hplip ];
    };

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

  # Enable the X11 windowing system.
  services.xserver.enable = true;
  services.xserver.layout = "de";
  services.xserver.xkbOptions = "eurosign:e";

  services.xserver.videoDrivers = [ "modesetting" "intel" ];

  # Enable touchpad support.
  services.xserver.libinput.enable = true;

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

  # Define a user account. Don't forget to set a password with ‘passwd’.
  users.extraUsers.spiollinux = {
    isNormalUser = true;
    uid = 1000;
    extraGroups = [ "vboxusers" "wheel" "networkmanager" ];
    shell = pkgs.zsh;
  };

  programs.zsh = 
    { enable = true;
      enableAutosuggestions = true;
    };

  services.smartd =
    {  enable = true;
       devices = [ { device = "/dev/sda"; } { device = "/dev/sdb"; } ];
    };

# fix nix-env memory issues
boot.kernel.sysctl."vm.overcommit_memory" = "1";

  # 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 = "18.03"; # Did you read the comment?

}