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

let cfg = config.sydnix.dank-material-shell;
in {
  options.sydnix.dank-material-shell = {
    enable = lib.mkEnableOption "Dank Material Shell";
  };

  config = lib.mkIf cfg.enable {
    programs.dank-material-shell = {
      enable = true;
      enableDynamicTheming = false;
      systemd = {
        enable = true;
        restartIfChanged = true;
      };
    };

    # Start after xwayland-satellite, if possible.  So DMS can start
    # with the DISPLAY env var set.
    systemd.user.services.dms = {
      wants = ["xwayland-satellite.service"];
      after = ["xwayland-satellite.service"];
    };

    # services.greetd.settings.default_session.command = "";

    services.displayManager.dms-greeter = {
      enable = true;
      compositor = {
        name = assert config.sydnix.niri.enable; "niri";
        # see: https://github.com/AvengeMedia/DankMaterialShell/commit/5ceb908b8b69c253e259b5437020192dcad4bfde
        customConfig = ''
          hotkey-overlay {
              skip-at-startup
          }
          environment {
              DMS_RUN_GREETER "1"
          }
          gestures {
             hot-corners {
               off
             }
          }
          layout {
            background-color "#000000"
          }
        '';
      };
      configHome = "/home/msyds"; # Really stupid.
      logs = {
        save = true;
        path = "/var/lib/dms-greeter/log";
      };
    };
  };
}