{ config, pkgs, ... }:

let
  my-python-packages = python-packages: with python-packages; [
    pip
    # pipx
    python-dateutil
    setuptools
    requests
  ];
  python-with-my-packages = pkgs.python3Full.withPackages my-python-packages;
in
{
  nix = {
    settings = {
      experimental-features = [ "nix-command" "flakes" ];
      warn-dirty = false;
      auto-optimise-store = true;
      trusted-users = [ "root" "don" ];
    };
    gc = {
      automatic = true;
      dates = "weekly";
      options = "--delete-older-than 7d";
    };
  };
  imports =
    [
      ./detect-reboot-needed.nix
      ./systemd.nix
      ./tailscale.nix
      ./upgrade-diff.nix
    ];

  # Enable networking
  networking.networkmanager.enable = true;
  networking.enableIPv6 = true;
  networking.networkmanager.wifi.powersave = true;
  networking.useDHCP = false;

  # Set your time zone.
  time = {
    timeZone = "America/Chicago";
    hardwareClockInLocalTime = false;
  };


  # Select internationalisation properties.
  i18n.defaultLocale = "en_US.utf8";
  i18n.inputMethod = {
    enabled = "fcitx5";
    fcitx5.addons = with pkgs; [
      fcitx5-mozc
      fcitx5-gtk
    ];
  };

  # Bootloader.
  boot = {
    kernelPackages = pkgs.linuxPackages_latest;
    kernelParams = [ "consoleblank=60" ];
    binfmt = {
      emulatedSystems = [ "aarch64-linux" ];
    };
    loader = {
      systemd-boot = {
        enable = true;
      };
      efi = {
        canTouchEfiVariables = true;
        efiSysMountPoint = "/boot";
      };
    };
    plymouth = {
      enable = true;
      theme = "breeze";
    };
    kernel = {
      sysctl = { "vm.swappiness" = 10;};
    };
  };

  security = {
    polkit = {
      enable = true;
    };
    sudo.enable = false;
    doas = {
      enable = true;
      extraRules = [{
        users = [ "don" ];
        keepEnv = true;
        noPass = true;
      }];
    };
  };

  services = {
    #udev = {
      #extraRules = ''
        #KERNEL=="card0", SUBSYSTEM=="drm", RUN+=""${pkgs.kanshi-fix}"/bin/kanshi-fix"
      #'';
    #};
    pcscd = {
      enable = true;
    };
    avahi = {
      enable = true;
      nssmdns4 = true;
    };
    printing = {
      enable = true;
    };
    udisks2 = {
      enable = true;
    };
    nscd = {
      enableNsncd = true;
    };
    fwupd = {
      enable = true;
    };
    flatpak = {
      enable = true;
    };
    fstrim = {
      enable = true;
    };
    pipewire = {
      enable = true;
      alsa = {
        enable = true;
        support32Bit = true;
      };
      pulse = {
        enable = true;
      };
    };
    tailscale = {
      enable = true;
    };
    logind = {
      lidSwitchExternalPower = "ignore";
      lidSwitchDocked = "ignore";
    };
    locate = {
      enable = true;
      package = pkgs.mlocate;
      localuser = null;
    };
    openssh = {
      enable = true;
      settings = {
        PasswordAuthentication = false;
        KbdInteractiveAuthentication = false;
        #PermitRootLogin = "yes";
      };
    };
  };

  # Enable sound with pipewire.
  sound.enable = true;
  hardware.bluetooth.enable = true;
  hardware.pulseaudio.enable = false;
  hardware.sane = {
    enable = true;
    extraBackends = [ pkgs.sane-airscan ];
  };
  security.rtkit.enable = true;

  xdg.portal = {
    enable = true;
    wlr.enable = true;
    extraPortals = [ pkgs.xdg-desktop-portal-gtk ];
    #gtkUsePortal = true;
  };

  users.users.don = {
    isNormalUser = true;
    initialPassword = "changeme";
    description = "Don Harper";
    extraGroups = [ "networkmanager" "wheel" "scanner" "lp" "video" "mlocate" "disk" ];
    openssh.authorizedKeys.keys = [
      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAINd8AdVbQQ/Fmw+b9mI8EMYqIoRkwmSwAOtmlte3incL don@loki"
    ];
  };

  # Allow unfree packages
  nixpkgs.config.allowUnfree = true;
  nixpkgs.config.permittedInsecurePackages = [ "electron-25.9.0" ];

  environment.systemPackages = with pkgs; [
    #(callPackage ../mypackages/kanshi-fix/default.nix {})
    python-with-my-packages
    acpi
    aspell
    aspellDicts.en
    bash-completion
    nix-bash-completions
    btop
    espeak-classic
    fwup
    fwupd
    fwupd-efi
    git-crypt
    gitFull
    headsetcontrol
    home-manager
    hunspell
    hunspellDicts.en_US
    imagemagick
    isync
    libsForQt5.qtkeychain
    lsb-release
    pkg-config
    playerctl
    poppler_utils
    pulseaudio
    ruby
    steam
    udiskie
    wireplumber
    wlsunset
    xdg-utils
    xfce.thunar
    zathura
  ];

  programs = {
    steam = {
      enable = true;
      # Open ports in the firewall for Steam Remote Play
      remotePlay.openFirewall = true;
      # Open ports in the firewall for Source Dedicated Server
      dedicatedServer.openFirewall = true;
    };
    dconf = {
      enable = true;
    };
    light = {
      enable = true;
    };
    mtr = {
      enable = true;
    };
    kdeconnect = {
      enable = true;
    };
    gnupg = {
      agent = {
        enable = true;
        pinentryPackage = pkgs.pinentry-curses;
        enableSSHSupport = true;
      };
    };
  };


  nixpkgs.overlays = [
    (final: prev: { qutebrowser = prev.qutebrowser.override     { enableWideVine = true; }; })
    (final: super:{ khal        = super.khal.overridePythonAttrs (_: { doCheck = false; }); })
  ];

  # Open ports in the firewall.
  networking.firewall = {
    enable = true;
    # always allow traffic from your Tailscale network
    trustedInterfaces = [ "tailscale0" ];
    checkReversePath = "loose";

    # allow the Tailscale UDP port through the firewall
    allowedUDPPorts = [ config.services.tailscale.port ];
    allowedTCPPortRanges = [ { from = 1714 ; to = 1764; } ];
    allowedUDPPortRanges = [ { from = 1714 ; to = 1764; } ];

    # allow you to SSH in over the public internet
    allowedTCPPorts = [ 22 ];
    interfaces = {
      "tailscale0" = {
        allowedTCPPorts = [ 22 8080 8443 ];
        allowedTCPPortRanges = [ { from = 1714 ; to = 1764; } ];
        allowedUDPPortRanges = [ { from = 1714 ; to = 1764; } ];
      };
    };
  };


  # 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 leavecatenate(variables, "bootdev", bootdev)
  # 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 = "23.11"; # Did you read the comment?
  programs.msmtp = {
    enable = true;
    accounts = {
      default = {
        auth = true;
        tls = true;
        port = 587;
        from = "duck@duckland.org";
        host = "smtp.gmail.com";
        user = "duckunix@gmail.com";
        passwordeval = "cat /home/don/.smtp_password.txt";
      };
    };
  };
  xdg.mime.enable = true;
  xdg.mime.defaultApplications = {
    "text/html" = "org.qutebrowser.qutebrowser.desktop";
    "x-scheme-handler/http" = "org.qutebrowser.qutebrowser.desktop";
    "x-scheme-handler/https" = "org.qutebrowser.qutebrowser.desktop";
    "x-scheme-handler/about" = "org.qutebrowser.qutebrowser.desktop";
    "x-scheme-handler/unknown" = "org.qutebrowser.qutebrowser.desktop";
  };
  environment.sessionVariables.DEFAULT_BROWSER = "${pkgs.qutebrowser}/bin/qutebrowser";
}