# 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,
  inputs,
  ...
}: {
  # Bootloader, Kernel, Params and modules
  boot = {
    # Specify kernel modules that are being loaded on all devices
    kernelModules = ["zram"];

    # Disable swraid to get rid of the warning
    swraid = {
      enable = false;
    };

    # Increase the vm.max_map_count
    kernel = {
      sysctl = {
        "vm.max_map_count" = 2147483642;
        "vm.swappiness" = 5;
      };
    };
  };

  networking = {
    # Wireless support via wpa_supplicant
    # wireless.enable = true;

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

    # Enable networking
    networkmanager = {
      enable = true;
    };
  };

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

  # Select internationalisation properties.
  i18n = {
    defaultLocale = "de_DE.UTF-8";
    extraLocaleSettings = {
      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 = {
    cockpit = {
      enable = true;
    };

    emacs = {
      enable = true;
      package = pkgs.emacs-gtk;
      install = true;
    };

    flatpak = {
      enable = true;
    };

    openssh = {
      enable = true;
    };

    pipewire = {
      enable = true;
      alsa = {
        enable = true;
        support32Bit = true;
      };
      pulse = {
        enable = true;
      };
    };

    printing = {
      enable = true;
    };

    vnstat = {
      enable = true;
    };

    xserver = {
      xkb = {
        layout = "de";
        variant = "";
      };

      desktopManager = {
        xterm = {
          enable = false; #Bye Bye XTerm
        };
      };
    };
  };

  # Configure console keymap
  console = {
    keyMap = "de";
  };

  sound = {
    enable = true;
  };

  hardware = {
    pulseaudio = {
      enable = false;
    };
    uinput = {
      enable = true;
    };
  };

  security = {
    rtkit = {
      enable = true;
    };
  };

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

  # Settings for the Nix package manager
  nix = {
    # Enable the flake command
    extraOptions = "experimental-features = nix-command flakes";
    settings = {
      auto-optimise-store = true;
    };
  };

  # nixpkg config and options
  nixpkgs = {
    config = {
      allowUnfree = true;
    };
  };

  # Enable Swap on ZRAM
  zramSwap = {
    enable = true;
    # Set the limit to half the RAM
    memoryPercent = 50;
  };

  # List packages installed in system profile. To search, run:
  # $ nix search wget
  environment = {
    sessionVariables = {
      FLAKE = "/home/derbetakevin/Development/dotfiles";
    };
  };

  # Show the differences after a rebuild.
  system = {
    activationScripts = {
      diff = {
        supportsDryActivation = true;
        text = ''
          ${pkgs.nvd}/bin/nvd --nix-bin-dir=${pkgs.nix}/bin diff /run/current-system "$systemConfig"
        '';
      };
    };
  };

  # List services that you want to enable:

  # Open ports in the firewall.
  # networking.firewall.allowedTCPPorts = [ ... ];
  # networking.firewall.allowedUDPPorts = [ ... ];
  # Or disable the firewall altogether.
  # networking.firewall.enable = false;

  # 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?
}