import 'package:flutter/material.dart';

class SelectButton extends StatefulWidget {
  final List<String> options;
  final int defaultIndex;
  final bool allowNull;
  final bool isDisabled;
  final void Function(int selection) onChange;
  const SelectButton(
      {super.key,
      required this.options,
      this.defaultIndex = 0,
      this.allowNull = true,
      this.isDisabled = false,
      required this.onChange});

  @override
  State<SelectButton> createState() => _SelectButtonState();
}

class _SelectButtonState extends State<SelectButton> {
  int _selection = 0;

  @override
  void initState() {
    super.initState();
    _selection = widget.defaultIndex;
  }

  @override
  Widget build(BuildContext context) {
    return Wrap(
      spacing: 5.0,
      children: List<Widget>.generate(
        widget.options.length,
        (int index) {
          return ChoiceChip(
            label: Text(widget.options[index]),
            selected: _selection == index,
            onSelected: (bool selected) {
              if (widget.isDisabled) return;
              if (!selected && !widget.allowNull) return;

              setState(() {
                _selection = selected ? index : -1;
                widget.onChange(_selection);
              });
            },
          );
        },
      ).toList(),
    );
  }
}