# 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, ... }:

  # Custom 8 level keyboard https://github.com/emareg/unikeyboard
  let
  compiledLayout = pkgs.runCommand "keyboard-layout" {} ''
    ${pkgs.xorg.xkbcomp}/bin/xkbcomp ${./home/pankaj/.config/xkb/unikeyboard} $out
  '';
  in {
  services.xserver.displayManager.sessionCommands = "${pkgs.xorg.xkbcomp}/bin/xkbcomp ${compiledLayout} $DISPLAY";
  imports =
    [ # Include the results of the hardware scan.
      ./hardware-configuration.nix
    ];

  # Use the systemd-boot EFI boot loader.
  boot.loader.systemd-boot.enable = true;
  boot.loader.efi.canTouchEfiVariables = false;
  boot.kernelParams = [ "boot.shell_on_fail" ];

  # Specify luks devices
  boot.initrd.luks.devices = [
      {
        name = "Nixos";
        device = "/dev/disk/by-uuid/5d1eb3af-d008-48be-a1ea-be8debf774e0";
        preLVM = true;
        allowDiscards = true;
      }
    ];

  networking.hostName = "jarvis"; # Define your hostname.
  #networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.
  networking.networkmanager.enable = true;  # Enables network manager.

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

  # Set your time zone.
  time.timeZone = "Asia/Kolkata";

  # Enable hardware options
  hardware = {
    pulseaudio.enable = true;
    opengl.driSupport32Bit = true;
    bumblebee.enable = true;
    bumblebee.connectDisplay = true;
     # # bumblebee.driver = "nvidia";
  };

  # List packages installed in system profile. To search by name, run:
  # $ nix-env -qaP | grep wget
  nix.extraOptions = " binary-caches-parallel-connections = 50 ";
   nixpkgs.config = {
     allowUnfree = true;
     firefox.enableAdobeFlash=true;
   };
   environment.systemPackages = with pkgs; [
     # drivers
     microcodeIntel glmark2 primus primusLib
     # web
     wget firefox chromium weechat uget qbittorrent google-chrome
     # development
     emacs python3 source-code-pro ag global ycmd sublime3
     # productivity
     vim yakuake git fish rxvt_unicode-with-plugins ranger xclip xkbcomp
     # system utility
     tlp htop gnome3.gnome-disk-utility gparted lm_sensors acpi cpufrequtils ntfs3g lshw linuxPackages.cpupower
     # nixos utility
     nox
     # scientific
     anki
     # latex
     stix-two stix-otf xits-math latinmodern-math
     # documents
     kdeApplications.okular evince kate ark libreoffice
     # user utility
     redshift redshift-plasma-applet xsel unzip lightlocker xflux xflux-gui
     # destop environment
     plasma-pa kdeplasma-addons plasma-desktop kwin kdeFrameworks.krunner
     # multimedia
     mpv smplayer vlc amarok-kf5 youtube-dl gwenview
     # games
     steam steam-run
   ];

  # 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;

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

  services = {

    # Enable the X11 windowing system
    xserver = {
      enable = true;
      layout = "us";
      exportConfiguration = true;

    # Enable touchpad
      libinput = {
	enable = true;
	naturalScrolling = false;
	middleEmulation = true;
	tapping = true;
      };

    # Enable KDE Desktop Environment
      desktopManager.plasma5.enable = true;
      displayManager.sddm.enable = true;
      # displayManager.lightdm.enable = true;

    # Enable nvidia proprietary drivers
      videoDrivers = ["intel" "vesa"];
    };

    redshift = {
      enable = true;

      # New Delhi
      latitude = "28.6456024";
      longitude = "77.21110499";
      temperature.night = 3400;
    };

  };

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

  # Define a user account. Don't forget to set a password with ‘passwd’.
   users.extraUsers.pankaj = {
     createHome = true;
     isNormalUser = true;
     home = "/home/pankaj";
     description = "Pankaj Bhanu";
     extraGroups = ["wheel" "networkmanager" "video" "disk" "systemd-journal" "log"];
     uid = 1000;
     shell = pkgs.fish;
   };

  # The NixOS release to be compatible with for stateful data such as databases.
  system.stateVersion = "18.03";

  # Add the NixOS Manual on virtual console 8
   services.nixosManual.showManual = true;
}