# ./modules/system.nix
# Define and configure high-level system settings.

{ config, pkgs, ... }:

{
	config = {
		# Configure the boot settings
		boot = {

			# Configure the boot loader
			loader = {
				grub.enable = true;
				grub.device = "/dev/nvme0n1";
				grub.useOSProber = true;
			};

			# Configure Plymouth
			plymouth = {
				enable = true;
				themePackages = with pkgs; [
					nixos-bgrt-plymouth
				];
				theme = "nixos-bgrt";
			};

			# Enable 'Silent Boot'
			consoleLogLevel = 0;
			initrd.verbose = false;
			kernelParams = [
				"quiet"
				"splash"
				"boot.shell_on_fail"
				"loglevel=3"
				"rd.systemd.show_status=false"
				"rd.udev.log_level=3"
				"udev.log_priority=3"
			];
		};

		# Configure Nix Garbage Collecter:
		# Run weekly and delete all but the three most recent generations.
		nix.gc = {
			automatic = true;
			dates = "weekly";
			options = "--delete-older-than +3";
		};

		# Enable networking
		networking.networkmanager.enable = true;

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

			# Enable CUPS for printing
			printing.enable = true;

			# Enable sound via Pipewire
			pulseaudio.enable = false;
			pipewire = {
				enable = true;
				alsa = {
					enable = true;
					support32Bit = true;
				};
				pulse.enable = true;
			};

			# Enable GVFS
			gvfs.enable = true;
		};

		# Enable hyprland and ly
		services.displayManager.ly.enable = true;
		programs.hyprland = {
			enable = true;
			xwayland.enable = true;
		};
		programs.hyprlock.enable = true;

		# Configure security settings
		security = {
			rtkit.enable = true;
			polkit.enable = true;
			pam.services.hyprlock = {};
		};

		# Set host name.
		networking.hostName = "d5640-nixos";

		# Set time zone.
		time.timeZone = "America/Chicago";

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

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

		# Define environment variables and shell aliases.
		environment = {
			variables = {
				EDITOR = "hx";
				SYSTEMD_EDITOR = "hx";
			};

			shellAliases = {
				using = "nix-shell --run fish -p";
				ccd = "clear; cd";
				reboot = "shutdown -r";
			};
		};

		# Configure hardware settings
		hardware = {
			bluetooth = {
				enable = true;
				powerOnBoot = true;
				settings = {
					General = {
						# Show battery charge of connected devices when able
						Experimental = true;
					};
				};
			};
		};
    # Allow unfree packages
    nixpkgs.config.allowUnfree = true;

		# Declare packages installed in system profile
		environment.systemPackages = with pkgs; [
			bat
			direnv
			dunst
			helix
			htop
			hypridle
			hyprlock
			hyprpaper
			hyprpicker
			hyprshot
			imv
			killall
			micro
			nautilus
			neofetch
			nnn
			p7zip
			parted
			pciutils
			ripgrep
			rofi-bluetooth
			rofi-calc
			rofi-network-manager
			rofi-power-menu
			rofi-wayland
			tree
			unzip
			usbutils
			vlc
			waybar

			# Import scripts from ../bin
			(writeScriptBin "svelte-ina-box" ''
				${builtins.readFile ../bin/svelte-ina-box}
			'')
		];
	};
}