# Modules used by most systems.

{ config, lib, pkgs, home-manager, ... }:

with lib; with types;
let named = submodule {
		options = {
			normal = mkOption { type = str; };
			bright = mkOption { type = str; };
			pastel = mkOption { type = str; };
		};
	};
	special = submodule {
		options = {
			primary = mkOption { type = str; };
			normal = mkOption { type = str; };
			slight = mkOption { type = str; };
		};
	};
    themeType = submodule {
		options = {
			foreground = mkOption { type = special; };
			background = mkOption { type = special; };
			grayscales = mkOption { type = listOf str; };
			red 	= mkOption { type = named; };
			green 	= mkOption { type = named; };
			blue 	= mkOption { type = named; };
			yellow	= mkOption { type = named; };
			purple  = mkOption { type = named; };
			cyan    = mkOption { type = named; };
			pink 	= mkOption { type = named; };
			orange	= mkOption { type = named; };
			misc 	= mkOption { type = attrsOf str; };
			hex 	= mkOption { type = themeType; };
		};
	}; in
{

	options.riley = with lib; {

		theme = mkOption {
			type = themeType;
			description = ''
				The theme used across the installation. Not used if gui is disabled.
			'';
		};

	};

	options.devices = mkOption {
		type = with types; submodule {
			options = {
    			
				audio = mkOption {
					type = nullOr (submodule {
    					options = {
							speakers = mkOption { type = str; };
							external = mkOption { type = str; };
							headset	 = mkOption { type = nullOr str; };
							main-mic = mkOption { type = nullOr str; };
						};
					});
					description = ''
						Known audio devices: outputs & microphones.
						Each string should be a pulseaudio sink or source.
					'';
				};

				video = mkOption {
					type = submodule {
    					options = {
        					displays = let output = submodule {
								options = {
									primary = mkOption {
										type = bool;
										default = false;
									};
									position = mkOption {
										type = nullOr (listOf int);
										default = null;
									};
									rotate = mkOption {
										type = enum [ "normal" "left" "right" "inverted" ];
										default = "normal";
									};
								};
							}; in mkOption {
            					type = attrsOf output;
            					description = ''
									A list of outputs with information on how to place them.
            					'';
        					};
						};
					};
					description = ''
						Define the video devices (just the displays, for now).
					'';
				};
				
			};
		};
	};


	imports = [

    	home-manager.nixosModule

		./kak
		./gui
		
		./fonts.nix
		./git.nix
		./ssh.nix
		
	];
    
    config = {

        riley.theme = (import ../colors.nix)."dark";

        time.timeZone = "Europe/Amsterdam";

        home-manager.useGlobalPkgs = true;
        home-manager.useUserPackages = true;
 
    	environment.systemPackages = with pkgs; [

    		# Web utils

    		wget
    		curl
    		git

    		# Coreutils

    		ripgrep
    		bottom
    		skim
    		exa
    		bat
    		lf
    		fd
    		
    	];

    	environment.shellAliases = {

        	# Born to VIM
			":q" = "exit";

            # Sike I use kakoune
			":e" = "kak";

			# Launch [A]lacritty
			"a"  = "alacritty";

			# [D]isown
			"d"	 = "disown";

		};

		programs.bash.interactiveShellInit = ''

			# [G]o to the directory. Create the directory if it does not exist
			# yet, and if the directory contains a shell.nix file, source it.
			g () {
    			[ -d "$1" ] || mkdir -p "$1";
        		cd "$1";
        		[ -e "shell.nix" ] && nix-shell;
			}

			# [M]ake a directory and immediately enter it.
			m () { mkdir -p "$1" && cd "$1"; }

			# [R]eplace the current process with the given one.
			r () { $1 & disown; exit; }

			# [J]ump to the directory by means of fuzzy search. If the fuzzy finder
			# is aborted, the jump is also aborted.
			j () { t=`sk` && cd $t; }

			# Enter a temporary [d]irectory.
			d () { cd "$(mktemp -d)"; }
			
		'';

    	boot = {
    		loader.systemd-boot = {
    			enable = true;
    			editor = false;
    			configurationLimit = 10;
    		};

    		loader.efi = {
    			canTouchEfiVariables = true;
    		};
    	};

    	networking = {
    		firewall.enable = false;
    		useDHCP = false;
    	};

    	security.rtkit.enable = true;

        users.users."riley" = {
            isNormalUser = true;
            extraGroups = [ "wheel" ]; # Enable ‘sudo’ for the user.
        };

    };
}