# 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, ... }:

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

  nix.settings.experimental-features = [ "nix-command" "flakes" ];

  nixpkgs.config.allowUnfree = true;
  nixpkgs.config.permittedInsecurePackages = [
    "electron-25.9.0"
  ];


  hardware.system76.enableAll = true;

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

  networking.hostName = "nixos76"; # Define your hostname.
  # Pick only one of the below networking options.
  # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.
  networking.networkmanager.enable = true; # Easiest to use and most distros use this by default.

  networking.firewall = {
    allowedUDPPorts = [ 51820 22000 ]; # Clients and peers can use the same port, see listenport
    allowedTCPPorts = [ 22000 48412 62109 ];
  };

  # Enable WireGuard
  networking.wireguard.interfaces = {
    # "wg0" is the network interface name. You can name the interface arbitrarily.
    wg0 = {
      # Determines the IP address and subnet of the client's end of the tunnel interface.
      ips = [ "10.100.0.2/24" ];
      listenPort = 51820; # to match firewall allowedUDPPorts (without this wg uses random port numbers)

      # Path to the private key file.
      #
      # Note: The private key can also be included inline via the privateKey option,
      # but this makes the private key world-readable; thus, using privateKeyFile is
      # recommended.
      privateKeyFile = "/home/alex/wireguard-keys/private";

      peers = [
        # For a client configuration, one peer entry for the server will suffice.

        {
          # Public key of the server (not a file path).
          publicKey = "aD40D1jcgLbIZGkA1AoXkwpmP6hSWcttf3ptq4GRjC0=";

          # Forward all the traffic via VPN.
          allowedIPs = [ "0.0.0.0/0" ];
          # Or forward only particular subnets
          #allowedIPs = [ "10.100.0.1" "91.108.12.0/22" ];

          # Set this to the server IP and port.
          endpoint = "192.168.1.226:51820"; # ToDo: route to endpoint not automatically configured https://wiki.archlinux.org/index.php/WireGuard#Loop_routing https://discourse.nixos.org/t/solved-minimal-firewall-setup-for-wireguard-client/7577

          # Send keepalives every 25 seconds. Important to keep NAT tables alive.
          persistentKeepalive = 25;
        }
      ];
    };
  };

  # Set your time zone.
  time.timeZone = "America/New_York";

  # Configure network proxy if necessary
  # networking.proxy.default = "http://user:password@proxy:port/";
  # networking.proxy.noProxy = "127.0.0.1,localhost,internal.domain";

  # Select internationalisation properties.
  # i18n.defaultLocale = "en_US.UTF-8";
  # console = {
  #   font = "Lat2-Terminus16";
  #   keyMap = "us";
  #   useXkbConfig = true; # use xkbOptions in tty.
  # };

  # Add LUKS external drive mount
  environment.etc.crypttab = {
    enable = true;
    text = ''
      # /etc/crypttab: mappings for encrypted partitions.
      #
      # Each mapped device will be created in /dev/mapper, so your /etc/fstab
      # should use the /dev/mapper/<name> paths for encrypted devices.
      #
      # See crypttab(5) for the supported syntax.
      #
      # NOTE: Do not list your root (/) partition here, it must be set up
      #       beforehand by the initramfs (/etc/mkinitcpio.conf). The same applies
      #       to encrypted swap, which should be set up with mkinitcpio-openswap
      #       for resume support.
      #
      # <name>               <device>                         <password> <options>
      # luks-d515fd8a-a021-4a1e-bd21-5793c3c3a771 UUID=d515fd8a-a021-4a1e-bd21-5793c3c3a771     /crypto_keyfile.bin luks
      externaldrive UUID=b9e3979c-9362-4242-a835-6dd702dfb0ee /etc/externalHD_keyfile.bin luks
    '';
  };

  fileSystems."/media/external".device = "/dev/mapper/externaldrive";


  # Enable the X11 windowing system.
  services.xserver.enable = true;
  services.xserver.desktopManager.xfce.enable = true;
  services.displayManager.defaultSession = "xfce";

  hardware.graphics.enable = true;
  hardware.graphics.driSupport = true;
  hardware.graphics.driSupport32Bit = true;
  hardware.graphics.setLdLibraryPath = true;
  hardware.graphics.extraPackages = [
    pkgs.intel-media-driver
  ];
  hardware.graphics.extraPackages32 = [
    pkgs.intel-media-driver
    pkgs.pkgsi686Linux.libva
  ];

  # Configure keymap in X11
  # services.xserver.layout = "us";
  # services.xserver.xkbOptions = "eurosign:e,caps:escape";

  # Enable blueooth
  hardware.bluetooth.enable = true;

  # Enable sound.
  # sound.enable = true;
  hardware.pulseaudio = {
    enable = true;
    package = pkgs.pulseaudioFull;
    support32Bit = true;
  };

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

  # Define a user account. Don't forget to set a password with ‘passwd’.
  users.users.alex = {
    isNormalUser = true;
    extraGroups = [ "wheel" "networkmanager" ]; # Enable ‘sudo’ for the user.
  };

  fileSystems."/home/alex/Documents" = {
    device = "/media/external/Documents";
    options = [ "bind" ];
  };

  fileSystems."/home/alex/Games" = {
    device = "/media/external/Games";
    options = [ "bind" ];
  };

  fileSystems."/home/alex/Git" = {
    device = "/media/external/Git";
    options = [ "bind" ];
  };

  fileSystems."/home/alex/Lutris" = {
    device = "/media/external/Lutris";
    options = [ "bind" ];
  };

  fileSystems."/home/alex/Music" = {
    device = "/media/external/Music";
    options = [ "bind" ];
  };

  fileSystems."/home/alex/Pictures" = {
    device = "/media/external/Pictures";
    options = [ "bind" ];
  };

  fileSystems."/home/alex/Videos" = {
    device = "/media/external/Videos";
    options = [ "bind" ];
  };

  # List packages installed in system profile. To search, run:
  # $ nix search wget
  environment.systemPackages = with pkgs; [
    # atau-wallpapers
    blueman
    dxvk
    envsubst
    font-manager
    gparted
    lshw
    mesa
    nodejs_20
    pavucontrol
    unzip
    vim
    vulkan-extension-layer
    wget
  ];

  # Syncthing
  services = {
    syncthing = {
      enable = true;
      user = "alex";
      dataDir = "/home/alex/Sync";
      configDir = "/home/alex/Sync/.config/syncthing";
      overrideDevices = true; # overrides any devices added or deleted through the WebUI
      overrideFolders = true; # overrides any folders added or deleted through the WebUI
      settings = {
        devices = {
          "atauno" = { id = "TXSURD2-XCKOLDG-DJ76OOK-JZXOE3Q-XXTNOIM-XR5LB2B-YWBV2ER-6KRFIQN"; };
        };
        folders = {
          # "Documents" = {
          #   # Name of folder in Syncthing, also the folder ID
          #   path = "/home/myusername/Documents"; # Which folder to add to Syncthing
          #   devices = [ "device1" "device2" ]; # Which devices to share the folder with
          # };
          "vaults" = {
            id = "bbqnm-caya2";
            path = "/home/alex/vaults";
            devices = [ "atauno" ];
            ignorePerms = false; # By default, Syncthing doesn't sync file permissions. This line enables it for this folder.
          };
        };
      };
    };
  };

  services.blueman.enable = true;

  services.printing.enable = true;

  services.avahi = {
    enable = true;
    nssmdns4 = true;
    openFirewall = true;
  };

  # 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 = [ ... ];
  # networking.firewall.allowedUDPPorts = [ ... ];
  # Or disable the firewall altogether.
  # networking.firewall.enable = false;

  # Copy the NixOS configuration file and link it from the resulting system
  # (/run/current-system/configuration.nix). This is useful in case you
  # accidentally delete configuration.nix.
  # system.copySystemConfiguration = true;

  # 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 = "23.05"; # Did you read the comment?
}