# 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, lib, ... }:

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

  # Bootloader.
  boot.loader.systemd-boot.enable = true;
  boot.loader.efi.canTouchEfiVariables = true;

  # Use latest kernel.
  boot.kernelPackages = pkgs.linuxPackages_latest;

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

  # Enable networking
  networking.networkmanager.enable = true;

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

  # Select internationalisation properties.
  i18n.defaultLocale = "en_GB.UTF-8";
 
  i18n.extraLocaleSettings = {
    LC_ADDRESS = "en_GB.UTF-8";
    LC_IDENTIFICATION = "en_GB.UTF-8";
    LC_MEASUREMENT = "en_GB.UTF-8";
    LC_MONETARY = "en_GB.UTF-8";
    LC_NAME = "en_GB.UTF-8";
    LC_NUMERIC = "en_GB.UTF-8";
    LC_PAPER = "en_GB.UTF-8";
    LC_TELEPHONE = "en_GB.UTF-8";
    LC_TIME = "en_GB.UTF-8";
  };

  # Impermanence

  fileSystems."/" = {
    device = "none";
    fsType = "tmpfs";
    neededForBoot = true;
  };

  fileSystems."/persist" = {
    device = "/dev/disk/by-uuid/1578f380-e588-419b-ace0-f63e6a48ca39";
    fsType = "ext4";
    neededForBoot = true;
  };

  environment.persistence."/persist" = {
    hideMounts = true;
    directories = [
      "/nix"
      "/home"
      "/var/log"
      "/var/lib/bluetooth"
      "/etc/NetworkManager/system-connections"
      "/var/lib/nixos"
      "/var/lib/ollama"
    ];
  };

  environment.etc."machine-id" = {
    source = "/persist/etc/machine-id";
    mode = "0444";
  };

  # Define a user account. Don't forget to set a password with ‘passwd’.
  programs.zsh.enable = true; # home-manager already installs this but nixos complains w/o it 
  users.users.xory = {
    isNormalUser = true;
    description = "xory";
    extraGroups = [ "networkmanager" "wheel" "docker" "libvirt" "dialout" ];
    shell = pkgs.zsh;
    initialHashedPassword = "$6$JXLpG5JYMJgZndm9$0sC8uPJ99cYL.hNv3DFQ20ky8tiZoxioe9GlMEanTwAD99LJ175/bHtN6Bm6bYsQG1BVGRdmphnXEcWS9ApoK0";
  };

  # ZeroTier
  services.zerotierone.enable = true;
  services.zerotierone.joinNetworks = [ "b3ce837c63" "363c67c55a726a89" ];

  # nix-ld
  programs.nix-ld.enable = true;
  programs.nix-ld.libraries = with pkgs; [
    libGL
    SDL2
  ];

  # Firejail
  programs.firejail = {
    enable = true;
    wrappedBinaries =
      let
        apps = {
          firefox = {};
          "signal-desktop-bin" = { name = "signal-desktop"; };
          vesktop = {};
          spotify = {};
          obsidian = {};
        };
      in
      lib.mapAttrs (pkg: conf:
        let
          binName = conf.name or pkg;
        in
        {
          executable = "${pkgs.${pkg}}/bin/${binName}";
          profile = "${pkgs.firejail}/etc/firejail/${binName}.profile";
          extraArgs = [
            "--env=GTK_THEME=Adwaita:dark"
          ];
        }) apps;
  };

  # Enable the X11 windowing system.
  # You can disable this if you're only using the Wayland session.
  services.xserver.enable = true;

  # Enable the KDE Plasma Desktop Environment.
  services.displayManager.sddm.enable = true;
  services.desktopManager.plasma6.enable = true;

  # Configure keymap in X11
  services.xserver.xkb = {
    layout = "us";
    variant = "";
  };

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

  # Enable sound with pipewire.
  services.pulseaudio.enable = false;
  security.rtkit.enable = true;
  services.pipewire = {
    enable = true;
    alsa.enable = true;
    alsa.support32Bit = true;
    pulse.enable = true;
    # If you want to use JACK applications, uncomment this
    #jack.enable = true;

    # use the example session manager (no others are packaged yet so this is enabled by default,
    # no need to redefine it in your config for now)
    #media-session.enable = true;
  };

  hardware.bluetooth = {
    enable = true;
    powerOnBoot = true;
    settings = {
      General.Experimental = true;
      General.FastConnectable = true;
      Policy.AutoEnable = true;
    };
  };

  # Enable touchpad support (enabled default in most desktopManager).
  # services.xserver.libinput.enable = true;


  services.ollama.enable = true;
  services.ollama.acceleration = "cuda";

  # Enable automatic login for the user.
  services.displayManager.autoLogin.enable = true;
  services.displayManager.autoLogin.user = "xory";

  # Install firefox.
  programs.firefox.enable = true;

  # Allow unfree packages
  nixpkgs.config.allowUnfree = true;

  # List packages installed in system profile. To search, run:
  # $ nix search wget
  environment.systemPackages = with pkgs; [
  #  vim # Do not forget to add an editor to edit configuration.nix! The Nano editor is also installed by default.
  #  wget
     neovim
     git
  ];

  # nVidia drivers.
  hardware.graphics.enable = true;
  services.xserver.videoDrivers = [ "nvidia"];
  hardware.nvidia = {
    modesetting.enable = true;
    powerManagement.enable = false;
    open = false;
    nvidiaSettings = true;
    package = config.boot.kernelPackages.nvidiaPackages.stable;
  };
  boot.blacklistedKernelModules = [ "nouveau" ];

  programs.steam.enable = true;

  nix.gc = {
    automatic = true;
    dates = "weekly";
    options = "--delete-older-than 2d";
  };

  programs.virt-manager.enable = true;
  virtualisation.libvirtd.enable = true;
  virtualisation.spiceUSBRedirection.enable = true;
  virtualisation.docker.enable = true;

  services = {
    syncthing = {
        enable = true;
        group = "users";
        user = "xory";
        dataDir = "/home/xory/Sync";    # Default folder for new synced folders
        configDir = "/home/xory/Sync/.config/syncthing";   # Folder for Syncthing's settings and keys
    };
  };
  services.openssh.enable = true; # TODO: add key-based auth

  # Some programs need SUID wrappers, can be configured further or are
  # started in user sessions.
  # 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 = [ 8000 22000 ];
  networking.firewall.allowedUDPPorts = [ 8000 22000 21027 ];
  # Or disable the firewall altogether.
  # networking.firewall.enable = false;
  nix.settings.experimental-features = [ "nix-command" "flakes" ];


  # This value determines the NixOS release from which the default
  # settings for stateful data, like file locations and database versions
  # on your system were taken. It‘s perfectly fine and recommended to leave
  # this value at the release version of the first install of this system.
  # Before changing this value read the documentation for this option
  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
  system.stateVersion = "25.05"; # Did you read the comment?

}