import 'package:dartterm/terminal.dart';
import 'package:flutter/services.dart';

abstract class Input {
  const Input();
}

class Click extends Input {
  final Button button;
  final int x, y;

  const Click(this.button, this.x, this.y);
}

class Keystroke extends Input {
  final Key? key;
  final String? _text;

  const Keystroke(this.key, this._text);

  String? text() => _text;
}

enum Button { left, right }

enum Key { space }

void startListening() {
  ServicesBinding.instance.keyboard.addHandler(_onKey);
}

bool _onKey(KeyEvent event) {
  if (event is KeyDownEvent) {
    final dartKey = event.logicalKey.keyLabel;
    final realKey = _keys[dartKey];

    notifyInput(Keystroke(realKey, event.character));
  }

  return false;
}

final _keys = {
  " ": Key.space,
};