# 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
  home-manager = builtins.fetchTarball "https://github.com/nix-community/home-manager/archive/release-23.05.tar.gz";

  dmenu-src = builtins.fetchTarball "https://git.jptrzy.xyz/dmenu/snapshot/master.tar.gz";
  dwm-src = builtins.fetchTarball "https://git.jptrzy.xyz/dwm/snapshot/master.tar.gz";
  dwmblocks-src = builtins.fetchTarball "https://git.jptrzy.xyz/dwmblocks/snapshot/master.tar.gz";
  neo-comic-mono-font = builtins.fetchTarball "https://git.jptrzy.xyz/neo-comic-mono-font/snapshot/master.tar.gz";
  sent-src = builtins.fetchTarball "https://git.jptrzy.xyz/sent/snapshot/master.tar.gz";
  slock-src = builtins.fetchTarball "https://git.jptrzy.xyz/slock/snapshot/master.tar.gz";

  user = "jp3";
in {

# NixOS Specific
  # Copy the NixOS configuration - /run/current-system/configuration.nix
  system.copySystemConfiguration = true;
  # Check out https://nixos.org/nixos/options.html).
  system.stateVersion = "23.05"; # Did you read the comment?

  nixpkgs.config.allowUnfree = true;

  nix.extraOptions = ''
    experimental-features = nix-command flakes
  '';
  nix.gc.automatic = true;

  imports = [
    (import "${home-manager}/nixos")

    # Include the results of the hardware scan.
    ./hardware-configuration.nix

    # Autologin on tty1
    ./autologin.nix
  ];

  nixpkgs.config.packageOverrides = pkgs: {
    nur = import (builtins.fetchTarball "https://github.com/nix-community/NUR/archive/master.tar.gz") {
      inherit pkgs;
    };

    vaapiIntel = pkgs.vaapiIntel.override { enableHybridCodec = true; };
    angband = pkgs.angband.override {
      enableSdl2 = true;
    };
  };

  home-manager.users."${user}" = import ./home-manager/home.nix {
    inherit user config pkgs;
    inherit (pkgs.nixpkgs) lib;
  };
  security.pam.services."${user}".enableGnomeKeyring = true;
  security.wrappers = {
    slock = {
      owner = "root"; group = "root";
      setuid = true;
      source = "${pkgs.slock}/bin/slock";
    };
  };

# BootLoader

  boot = {
    initrd.luks.devices = { # Decrypt LUKS Partition before accessing LVM(s) partitions 
      root = {
        device = "/dev/sda2";
        preLVM = true;
      };
    };

    loader = { # Use the systemd-boot EFI boot loader.
      systemd-boot = {
        enable = true;
        configurationLimit = 3;
      };

      efi.canTouchEfiVariables = true;
    };
  };

# System

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

  users.groups."${user}" = {};

  # Define a user account. Don't forget to set a password with ‘passwd’.
  users.users."${user}" = {
    createHome = true;
    isNormalUser = true;
    extraGroups = [ "${user}" "wheel" "video" "audio" "disk" "networkmanager" ]; # Enable ‘sudo’ for the user.
    group = "users";
    home = "/home/${user}";
    uid = 1000;
  };

  # Network
  networking = {
    hostName = "jp3-x270"; # Define your hostname.
    networkmanager.enable = true;  # Easiest to use and most distros use this by default.
  };

  # Enable sound.
  sound.enable = true;

  hardware = {
    bluetooth = {
      enable = true;
      settings = {
        General = {
          Enable = "Source,Sink,Media,Socket";
        };
      };
    };

    pulseaudio = {
      enable = true;
      package = pkgs.pulseaudioFull;
      extraConfig = "
        load-module module-switch-on-connect
        ";
    };

    opengl = {
      enable = true;
      extraPackages = with pkgs; [
        intel-media-driver # LIBVA_DRIVER_NAME=iHD
        vaapiIntel         # LIBVA_DRIVER_NAME=i965 (older but works better for Firefox/Chromium)
        vaapiVdpau
        libvdpau-va-gl
      ];
    };
  };

  services = {
    logind.extraConfig = ''
      HandleLidSwitch=suspend
    '';

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

      layout = "pl";
      xkbOptions = "caps:escape";

      displayManager.sx.enable = true;
      windowManager.dwm.enable = true;

      libinput = {
        enable = true;
        touchpad = {
          naturalScrolling = true;
          clickMethod = "none";
          tapping = false;
        };
      };
    };

    printing = {
      enable = true;

      drivers = [
        pkgs.hplip
        pkgs.hplipWithPlugin
      ];
    };

    avahi = {
      enable = true;
      nssmdns = true;
      openFirewall = true;
    };

    auto-cpufreq.enable = true; # Helps battery life

    flatpak.enable = true;

    gvfs.enable = true; # Gvfs - Trash and MTP (Smartphones)

    dbus.enable = true;
  };

# Lock on lid close
  #systemd.user.services.systemd-lock-handler = {
  #  enable = true;
  #};

  #systemd.services.xautolock-lid-close = {
  #  enable = true;
  #  description = "Enable xautolock on lid close";

  #  before = [ "sleep.target" ];
  #  wantedBy = [ "sleep.target" ];

  #  serviceConfig = {
  #    Type = "forking";
  #    User = "root";
  #    Environment = "DISPLAY=:1";
  #    ExecStartPre = "${pkgs.xorg.xhost}/bin/xhost si:localuser:root";
  #    ExecStart = "${pkgs.xautolock}/bin/xautolock --locknow";
  #  };
  #};

# Services

  # PinEntry for GnuPG
  programs.gnupg.agent = {
    enable = true;
    pinentryFlavor = "gnome3";
    enableSSHSupport = true;
  };

  # Portals
  xdg.portal.enable = true;
  xdg.portal.extraPortals = [ pkgs.xdg-desktop-portal-gtk ];

# Programs
  # Enable Sceen Brightness
  programs.light.enable = true;

  programs.system-config-printer.enable = true;

  # Fonts
  fonts.fonts = with pkgs; [
    noto-fonts
    noto-fonts-cjk
    noto-fonts-emoji

    font-awesome

    # Custom
    (import "${neo-comic-mono-font}")
  ];

  # Gaming
  programs.steam = {
    enable = true;
    remotePlay.openFirewall = true; # Open ports in the firewall for Steam Remote Play
      dedicatedServer.openFirewall = true; # Open ports in the firewall for Source Dedicated Server
  };

  # Suckless Overlays
  nixpkgs.overlays = [
    (final: prev: {
      dmenu = prev.dmenu.overrideAttrs (old: { src = dmenu-src; });
      dwm = prev.dwm.overrideAttrs (old: { src = dwm-src; });
      dwmblocks = prev.dwmblocks.overrideAttrs (old: { src = dwmblocks-src; });
      sent = prev.dwm.overrideAttrs (old: { src = sent-src; });
      slock = prev.slock.overrideAttrs (old: {
        src = slock-src;
        buildInputs = with pkgs; [
          xorg.libXinerama
          xorg.libXft
          imlib2
        ] ++ old.buildInputs;
      });
    })
  ];

# List packages installed in system profile. To search, run:
  environment.binsh = "${pkgs.dash}/bin/dash";

  # $ nix search wget
  environment.systemPackages = with pkgs; [
    #(import /home/.../.local/src/slock/default.nix {
    #  inherit fetchurl lib stdenv writeText;
    #  inherit libxcrypt;
    #  inherit (xorg) xorgproto libX11 libXext libXrandr;
    #})
    neovim
    git 
    wget
    htop
    gnumake
    gcc
    gnupg
    pass
    killall
    shellcheck

    # Window Manager
    cmus
    dconf
    dmenu dwm dwmblocks slock
    xclip
    nsxiv
    zathura

    pinentry-gnome gcr pinentry-gtk2

    # Heavy
    alacritty
    firefox
    gnome.nautilus
    pika-backup
    pavucontrol
    logseq
    heroic
    lxappearance
    fontpreview
    ffmpeg
    mpv
    thunderbird
    signal-desktop
    w3m
    texlive.combined.scheme-full
    yt-dlp
    curl
    ueberzug
    libnotify
    abaddon # Discord
    inkscape gimp krita
    cups
    arandr
    monero-gui
    sent
    xautolock

    # Gnome Apps without Gnome
    gnome.adwaita-icon-theme libsecret gnome.seahorse

    # Lanuguages
    nil nix-index

    # Games
    angband
    nethack
    openttd
  ];
}