{ config
, lib
, pkgs
, inputs
, ...
} @ args:

with lib;
let
  cfg = config.my.programs.river;
in
{
  options.my.programs.river = {
    enable = mkEnableOption "river";
    keyboardLayouts = mkOption {
      type = types.listOf types.str;
      description = "list of keyboard layouts";
      default = [ "de" "us" ];
    };
    monitors = mkOption {
      type = types.listOf types.str;
      description = "monitor settings";
      default = [ ",preferred,auto,1" ];
    };
  };

  config = mkIf cfg.enable {
    programs.river.enable = true;
    my = {
      programs = {
        wallpaper.enable = true;
        foot.enable = true;
        tofi.enable = true;
      };
      wallpapers.enable = true;
      services = {
        dunst.enable = true;
        wallpaper = {
          enable = true;
          # target = "hyprland-session.target";
        };
        # spotify-player.target = "hyprland-session.target";
      };
    };

    home-manager.users.moritz = {
      # enable home-manager module
      wayland.windowManager.river = {
        enable = true;
        package = pkgs.river.overrideAttrs (old: {
          src = inputs.river;
          version = lib.my.mkVersionInput inputs.river;
          # HACK: to change wlroots to 0.17.x
          buildInputs = with pkgs; [
            libGL
            libevdev
            libinput
            libxkbcommon
            pixman
            udev
            wayland-protocols
            wlroots_0_17
            xorg.libX11
          ];
        });
        settings = {
          border-width = 2;
          declare-mode = [
            "locked"
            "normal"
            "passthrough"
          ];
          map = {
            normal = {
              "Super Q" = "close";
              "Super Return" = "spawn footclient";
              "Super+Shift Return" = "spawn foot";
              "Super R" = ''spawn 'exec $(tofi-run --fuzzy-match=true)' '';
            };
          };
        };
      };

      # add waybar as a status bar
      programs.waybar = {
        enable = true;

        # start using systemd service
        systemd = {
          enable = true;
          # target = "hyprland-session.target";
        };

        settings = {
          mainBar = {
            start_hidden = true;
            layer = "top";
            position = "top";
            height = 20;
            modules-left = [ "river/mode" ];
            modules-center = [ "river/window" ];
            modules-right = [ "network" "memory" "cpu" "battery" "clock" ];
          };
        };
      };

      # lock screen after timeout
      programs.swaylock = {
        enable = true;
        settings = {
          color = "000000";
        };
      };
      services.swayidle = {
        enable = true;
        events = [
          {
            event = "before-sleep";
            command = "${getExe pkgs.swaylock} -fF";
          }
          {
            event = "lock";
            command = "${getExe pkgs.swaylock} -fF";
          }
        ];
        timeouts =
          let
            lockTimeout = 10;
          in
          [
            {
              timeout = lockTimeout * 60 - 10;
              command = "${pkgs.libnotify}/bin/notify-send 'Locking screen!'";
            }
            {
              timeout = lockTimeout * 60 + 10;
              command = "${pkgs.systemd}/bin/loginctl lock-session";
            }
          ];
        # systemdTarget = "hyprland-session.target";
      };
    };

    # adds pam module for swaylock
    security.pam.services.swaylock = { };

    # add user packages for wayland and hyprland in particular
    users.users.moritz.packages = with pkgs; [
      brightnessctl # control brightness
      grimblast # screenshot tool for hyprland
      pamixer # pulse audio cli
      playerctl # control media playback
      slurp # region select for wayland (for screensharing)
      wdisplays # manage monitors
      wl-clipboard # clipboard tool for wayland
    ];


    # additional environment variables
    # environment.sessionVariables =
    #   {
    #     XDG_CURRENT_DESKTOP = "Hyprland";
    #     XDG_SESSION_TYPE = "wayland";
    #     XDG_SESSION_DESKTOP = "Hyprland";
    #     QT_AUTO_SCREEN_SCALE_FACTOR = "1";
    #     QT_QPA_PLATFORM = "wayland;xcb";
    #     QT_WAYLAND_DISABLE_WINDOWDECORATION = "1";
    #     QT_QPA_PLATFORMTHEME = "qt5ct";
    #     _JAVA_AWT_WM_NONEREPARENTING = "1";
    #   } // (optionalAttrs cfg.nvidiaSupport
    #     {
    #       LIBVA_DRIVER_NAME = "nvidia";
    #       GBM_BACKEND = "nvidia-drm";
    #       __GLX_VENDOR_LIBRARY_NAME = "nvidia";
    #       WLR_NO_HARDWARE_CURSORS = "1";
    #       __GL_VRR_ALLOWED = "0";
    #     });

    services = {
      dbus.enable = true;
      # use pipewire (needed for screensharing)
      pipewire = {
        enable = true;
        alsa.enable = true;
        alsa.support32Bit = true;
        pulse.enable = true;
      };
      xserver = {
        enable = true;
        displayManager = {
          lightdm.enable = true;
          autoLogin = {
            enable = true;
            user = "moritz";
          };
          defaultSession = "river";
        };
      };
    };
    security.rtkit.enable = true;

    # home-manager.users.moritz.systemd.user.services =
    #   let
    #     units = [ "waybar" ];
    #     mkAfter = _: {
    #       Unit = {
    #         After = [ "hyprland-session.target" ];
    #         Wants = [ "hyprland-session.target" ];
    #       };
    #     };
    #   in
    #   genAttrs units mkAfter;
    #
    # systemd.user.services =
    #   let
    #     units = [ "pipewire" "xdg-desktop-portal" "xdg-desktop-portal-hyprland" "wireplumber" ];
    #     mkAfter = _: {
    #       after = [ "hyprland-session.target" ];
    #       wants = [ "hyprland-session.target" ];
    #     };
    #   in
    #   genAttrs units mkAfter;
  };
}