{ config, pkgs, lib, ... }:

let
	themeName = "Breeze";
	gtk3and4settings = lib.generators.toINI {} {
		Settings = {
			gtk-theme-name = themeName;
			gtk-cursor-theme-name = "breeze_cursors";
		};
	};

	gtk2settings = ''
	include "/run/current-system/sw/share/themes/${themeName}-Dark/gtk-2.0/gtkrc"
	gtk-theme-name="${themeName}-Dark"
	'';

	# Set up the default kde options
	kdeglobals = lib.generators.toINI {} {
		KDE.LookAndFeelPackage = "org.kde.breezedarktint.desktop";
		KDE.SingleClick = false;
		General = {
		accentColorFromWallpaper = true;
		AccentColor = "172,53,164" ; };
	};

	breezeTint = pkgs.stdenv.mkDerivation {
		name = "breeze-tint";
		src = "${pkgs.breeze-qt5}";
		patches = [ ./patches/BreezeTint.patch ];
		installPhase = ''
			runHook preInstall

			mkdir -p $out/share/color-schemes/
			cp -r share/color-schemes/* $out/share/color-schemes/

			runHook postInstall
		'';
	};
	lookAndFeel = pkgs.stdenv.mkDerivation {
		name = "toast-look-and-feel";
		src = "${pkgs.plasma-workspace}";
		patches = [ ./patches/TintedLookAndFeel.patch ];
		installPhase = ''
			runHook preInstall

			mkdir -p $out/share/plasma/look-and-feel/
			cp -r share/plasma/look-and-feel/* $out/share/plasma/look-and-feel/

			runHook postInstall
		'';
	};

	# /etc/xdg is not read by plasma, so to change the default settings you need to put them in a package
	plasmaDefaults = pkgs.stdenv.mkDerivation {
		name = "toast-plasma-defaults";
		dontUnpack = true;
		installPhase = ''
			runHook preInstall

			set -x
			mkdir -p $out/etc/xdg
			echo "${kdeglobals}" > $out/etc/xdg/kdeglobals

			runHook postInstall
		'';
	};

in

{
	services.xserver = {
		# Enable the Plasma 5 Desktop Environment
		desktopManager.plasma5.enable = true;
		displayManager.defaultSession = "plasmawayland";
	};


	# GTK apps need dconf to grab the correct theme on Wayland
	programs.dconf.enable = true;

	# The NixOS dconf module doesn't support creating databases
	# (https://github.com/NixOS/nixpkgs/issues/54150), so I'm
	# doing it manualy

	# https://help.gnome.org/admin/system-admin-guide/stable/dconf-custom-defaults.html.en
	environment.etc = {
		"dconf/profile/user".text = "user-db:user\nsystem-db:local";
		"dconf/db/local.d/00-defaultTheme".text = ''
			[org/gnome/desktop/interface]
			gtk-theme='${themeName}'
		'';
	};

	system.activationScripts = {
		dconf = {
			text= ''
			echo "updating system dconf database..."
			${pkgs.dconf}/bin/dconf update
			'';
			deps = [ "etc" ];
		};
	};

	# Set up GTK to use Breeze instead of adwaita by default
	# Theese only seem to work on X11, not wayland
	environment.etc = {
		"xdg/gtk-4.0/settings.ini".text = gtk3and4settings;
		"xdg/gtk-3.0/settings.ini".text = gtk3and4settings;
		"gtk-2.0/gtkrc".text = gtk2settings;
	};

	/*
	Install the patched Breeze color schemes and look and feel packages,
	as well as the plasma default configs
	*/
	environment.systemPackages = [ breezeTint lookAndFeel plasmaDefaults ];

}