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

let
  cfg = config.ptw.programs.plasma;
in {
  options.ptw.programs.plasma = {
    enable = lib.mkEnableOption "Enable KDE Plasma";
    mobile = {
      enable = lib.mkEnableOption "Enable Plasma Mobile";
    };
    wayland = {
      enable = lib.mkOption {
        default = true;
        description = "Ignore NixOS 'recommendations' and use the Wayland session by default";
      };
    };
  };

  config = lib.mkIf cfg.enable {
    services.xserver = {
      desktopManager.plasma5 = {
        enable = true;
        runUsingSystemd = true;
        supportDDC = true;
        mobile.enable = cfg.mobile.enable;
      };

      # See https://github.com/NixOS/nixpkgs/commit/a506f9c79700255c215dddb53455d5e2bed6c1af
      displayManager.defaultSession = lib.mkIf cfg.wayland.enable "plasmawayland";
    };

    xdg.portal = {
      enable = true;
      extraPortals = [ pkgs.xdg-desktop-portal-kde ];
    };
    
    environment.systemPackages = let
      kdePackages = with pkgs.libsForQt5; [
        okular
        kdeconnect-kde
        breeze-gtk
        bismuth
        gwenview
        yakuake
      ];
      packages = with pkgs; [
        kde-rounded-corners
        index-fm
        rsibreak
        kalendar
        kate

        # Some Gnome software
        gnome.totem
      ];
    in kdePackages ++ packages;
  };
}