# 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
    ];

  # keyring for nextcloud etc.
  services.gnome.gnome-keyring.enable = true;
  security.pam.services.greetd.enableGnomeKeyring = true;
  environment.variables.XDG_RUNTIME_DIR = "/run/user/$UID";
  programs.seahorse.enable = true;

  # optimize power usage
  powerManagement.enable = true;

  # prevent overheat
  services.thermald.enable = true;

  services.tlp = {
        enable = true;
        settings = {
          CPU_SCALING_GOVERNOR_ON_AC = "performance";
          CPU_SCALING_GOVERNOR_ON_BAT = "powersave";

          CPU_ENERGY_PERF_POLICY_ON_BAT = "power";
          CPU_ENERGY_PERF_POLICY_ON_AC = "performance";

          CPU_MIN_PERF_ON_AC = 0;
          CPU_MAX_PERF_ON_AC = 100;
          CPU_MIN_PERF_ON_BAT = 0;
          CPU_MAX_PERF_ON_BAT = 20;

         #Optional helps save long term battery health
         START_CHARGE_THRESH_BAT0 = 40; # 40 and bellow it starts to charge
         STOP_CHARGE_THRESH_BAT0 = 80; # 80 and above it stops charging

        };
  };

  # optimize storage
  nix.optimise.automatic = true;

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

  # udev for brillo
  services.udev.extraRules = ''
    ACTION=="add", SUBSYSTEM=="backlight", KERNEL=="intel_backlight", MODE="0666", RUN+="${pkgs.coreutils}/bin/chmod a+w /sys/class/backlight/%k/brightness"
  '';

  services.logind.extraConfig = ''
    # don’t shutdown when power button is short-pressed
    HandlePowerKey=suspend
  '';
  services.logind.lidSwitch = "suspend";

  networking.hostName = "absol";
  # networking.wireless.enable = true;
  networking.networkmanager.enable = true;

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

  i18n.supportedLocales = [
    "en_US.UTF-8/UTF-8"
    "de_DE.UTF-8/UTF-8"
  ];

  # Select internationalisation properties.
  i18n.defaultLocale = "en_US.UTF-8";

  i18n.extraLocaleSettings = {
    LANG = "en_US.UTF-8";
    LC_ALL = "en_US.UTF-8";
    LANGUAGE = "en_US.UTF-8";
    LC_ADDRESS = "de_DE.UTF-8";
    LC_IDENTIFICATION = "de_DE.UTF-8";
    LC_MEASUREMENT = "de_DE.UTF-8";
    LC_MONETARY = "de_DE.UTF-8";
    LC_NAME = "de_DE.UTF-8";
    LC_NUMERIC = "de_DE.UTF-8";
    LC_PAPER = "de_DE.UTF-8";
    LC_TELEPHONE = "de_DE.UTF-8";
    LC_TIME = "de_DE.UTF-8";
  };

  services.greetd = {
    enable = true;
    settings = {
      default_session = {
        command = "${pkgs.greetd.tuigreet}/bin/tuigreet --time --remember --cmd Hyprland";
        user = "greeter";
      };
    };
  };

  # Configure console keymap
  console.keyMap = "us";

  # Enable CUPS to print documents.
  services.avahi = {
    enable = true;
    nssmdns4 = true;
    openFirewall = true;
  };
  services.printing = {
    enable = true;
  };

  # iwlwifi fix?
  hardware.enableRedistributableFirmware = true;

  # bluetooth
  hardware.bluetooth.enable = true;
  hardware.bluetooth.powerOnBoot = true;
  services.blueman.enable = true;

  # Enable sound with pipewire.
  security.rtkit.enable = true;
  services.pipewire = {
    enable = true;
    alsa.enable = true;
    alsa.support32Bit = true;
    pulse.enable = true;
  };

  # Define a user account.
  users.users.leonv = {
    isNormalUser = true;
    description = "Leon Vatthauer";
    extraGroups = [ "networkmanager" "wheel" ];
    initialPassword = "leonv"; # just for setup
  };

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

  # List packages installed in system profile.
    environment.systemPackages = 
    with pkgs;
      [
        texliveFull
        libsecret
        # for connecting to nas
        nfs-utils

        # some standards for convenience
        vim
        parted
        qpdfview

        # deps for hyprland / eww
        socat
      ];

  system.stateVersion = "24.05";

  # source zsh
  programs.zsh.enable = true;
  users.defaultUserShell = pkgs.zsh;

  nix.settings.substituters = [
    "https://aseipp-nix-cache.global.ssl.fastly.net" 
  ];

  # environment variables
  environment.sessionVariables = {
    ## disable logging when direnv changes
    DIRENV_LOG_FORMAT = [];
  };

  # fonts
  fonts = {
    fontDir.enable = true; # links fonts to /run/current-system/sw/share/X11/fonts
    packages = with pkgs; [
      ((nerdfonts.override { fonts = [ "Hack" "DejaVuSansMono" "DroidSansMono" "Noto" ]; }))
      mononoki
      # noto-fonts
      noto-fonts-cjk
      noto-fonts-emoji
    ];
    enableDefaultPackages = true;
    fontconfig = {
      defaultFonts = {
        monospace = [ "Berkeley Mono Nerd Font" ];
        sansSerif = [ "NotoSans Nerd Font" ];
        serif = [ "NotoSans Nerd Font" ];
        emoji = [ "Noto Color Emoji" ];
      };
    };
  };

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

  # hyprland
  programs.hyprland.enable = true;

  # ssh
  programs.ssh.startAgent = true;
  programs.ssh.extraConfig = ''
    AddKeysToAgent yes
    IdentityFile ~/.ssh/git
    '';

  # thunar
  programs.thunar = {
    enable = true;
    plugins = with pkgs.xfce; [
      thunar-archive-plugin
      thunar-volman
    ];
  };
  services.gvfs.enable = true; # Mount, trash, and others
  services.tumbler.enable = true; # thumbnail support for images
}