# 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, ... }:

rec {
  imports =
    [ # Include the results of the hardware scan.
      ./vali-hw.nix
      ./custom/zsh.nix
      ./users.nix
    ];

  # Use the GRUB 2 boot loader.
  boot.loader.grub.enable = true;
  boot.loader.grub.version = 2;

  boot.loader.grub.extraEntriesBeforeNixOS = true;
  boot.loader.grub.extraEntries = ''
    set timeout=-1
    
    menuentry "Windows" {
      insmod chain
      insmod ntfs
      search --set=root --fs-uuid 72AEB04AAEB0089D
      set root=(hd1,msdos1)
      chainloader +1
    }
  '';

  time.timeZone = "Europe/Berlin";

  networking.hostName = "vali"; # Define your hostname.
  networking.hostId = "03dda86d";
  # networking.wireless.enable = true;  # Enables wireless.

  # Select internationalisation properties.
  i18n = {
    consoleFont = "lat9w-16";
    # consoleKeyMap = pkgs.fetchurl {
    #   url = https://f.141.li/f569c4afc6/dvp.map.gz;
    #   sha256 = "0e859211cfe16a18a3b9cbf2ca3e280a23a79b4e40b60d8d01d0fde7336b6d50";
    # };
    consoleKeyMap = custom/dvp.map.gz;
    defaultLocale = "en_US.UTF-8";
  };

  # List packages installed in system profile. To search by name, run:
  # $ nix-env -qaP | grep wget
  environment.systemPackages = with pkgs; [
    git
    zsh
    vim
    tmux
    mosh
    ntfs3g
    sshfsFuse
  ];

  # List services that you want to enable:

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

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

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

  # Enable the KDE Desktop Environment.
  # services.xserver.displayManager.kdm.enable = true;
  # services.xserver.desktopManager.kde4.enable = true;

  users.mutableUsers = false;

  users.extraUsers.root = let
    template = (import users/gkleen.nix);
    in {
        inherit (template) shell;
        openssh.authorizedKeys.keyFiles = template.openssh.authorizedKeys.keyFiles;
      };

  users.extraGroups.media = {
    gid = 498;
    members = [ "gkleen" ];
  };

  system.activationScripts = let
    setupUsers = pkgs.callPackage custom/dotfiles.nix {};
    toRec = name : {
      dir = "/home/${name}";
      owner = name;
      group = "users";
    };
    in setupUsers (builtins.map toRec [ "gkleen" ]);

  services.xserver = {
    xrandrHeads = [ "DP-4" "DP-2" "DP-0" ];
  
    windowManager.xmonad = {
      enable = true;
      enableContribAndExtras = true;
      extraPackages = hsPkgs: [ hsPkgs.hostname ];
    };
    windowManager.default = "xmonad";

    displayManager = {
      slim = {
        enable = true;
        defaultUser = "gkleen";
      };
      sessionCommands = ''
        ${pkgs.xorg.xrandr}/bin/xrandr --output DP-2 --primary --mode '2560x1440' # services.xserver.xrandrHeads is proving unreliable
        ${pkgs.xorg.xrandr}/bin/xrandr --output DP-4 --left-of DP-2
        ${pkgs.xorg.xrandr}/bin/xrandr --output DP-0 --right-of DP-2
        ${pkgs.xlibs.xset}/bin/xset -dpms
        ${pkgs.xlibs.xset}/bin/xset s off
        ${pkgs.xlibs.xsetroot}/bin/xsetroot -mod 10 10 -bg black -fg '#222'
        ${pkgs.autocutsel}/bin/autocutsel -selection CLIPBOARD -fork
        ${pkgs.autocutsel}/bin/autocutsel -selection PRIMARY -fork
      '';
    };

    desktopManager.xterm = {
      enable = false;
    };
    desktopManager.default = "none";

    enable = true;
    autorun = true;

    layout = "us";
    xkbVariant = "dvp";
    xkbOptions = "compose:caps";

    videoDrivers = [ "nvidia" ];
  };

  hardware.opengl.driSupport32Bit = true;

  sound = {
    enable = true;
    extraConfig = ''
      defaults.pcm.!card 1
    '';
  };
  boot.blacklistedKernelModules = [ "snd_hda_intel" ];
    
  nixpkgs.config.allowUnfree = true;

  nix = {
    binaryCaches = [ "https://cache.nixos.org"
                   ];
    binaryCachePublicKeys = [ "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="
                            ];
    extraOptions = ''
      binary-caches-parallel-connections = 10
    '';
  };

  environment.etc."systemd/sleep.conf" = {
    enable = true;
    text = ''
      [Sleep]
      HibernateMode=shutdown platform
    '';
  };

  systemd.automounts = [
    { enable = true;
      where = "/var/media";
      automountConfig = {
        DirectoryMode = "555";
      };
      wantedBy = [ "remote-fs.target" ];
    }
  ];

  systemd.mounts = [
    { enable = true;
      where = "/var/media";
      what = "media@hel.asgard.yggdrasil:/var/media";
      type = "fuse.sshfs";
      options = "idmap=user,IdentityFile=/home/gkleen/.ssh/media@hel,allow_other,reconnect,_netdev";
      mountConfig = {
        Environment = "PATH=/run/current-system/sw/bin:/run/current/system/sw/sbin";
        DirectoryMode = "555";
      };
    }
  ];
}