import 'package:flutter/material.dart';

void main() => runApp(const MyApp());

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Material App',
      home: Scaffold(
        appBar: AppBar(
          title: const Text('Material App Bar'),
        ),
        body: Center(
          child: SingleChildScrollView(
            child: Column(
              children: <Widget>[
                for (int i = 0; i < 100; i++)
                  Padding(
                    padding: const EdgeInsets.only(top: 100),
                    child: EasyCheckbox(
                      isChecked: false,
                      onChanged: (_) {
                        /* Do something */
                      },
                      title: 'Test Title 123',
                      description: 'Bad update :C',
                      width: 300,
                    ),
                  ),
              ],
            ),
          ),
        ),
      ),
    );
  }
}

class EasyCheckbox extends StatefulWidget {
  final bool isChecked;
  final Function onChanged;
  final String title;
  final String? description;
  final double? width;
  final TextStyle? textStyle;
  final Color? textColor;
  final bool isLocked;

  const EasyCheckbox({
    super.key,
    this.isChecked = false,
    required this.onChanged,
    required this.title,
    this.description,
    this.width,
    this.textStyle,
    this.textColor,
    this.isLocked = false,
  });

  @override
  _EasyCheckboxState createState() => _EasyCheckboxState();
}

class _EasyCheckboxState extends State<EasyCheckbox> {
  late bool value = widget.isChecked;
  Color? _color;

  @override
  Widget build(BuildContext context) {
    return IgnorePointer(
      ignoring: widget.isLocked,
      child: SizedBox(
        width: widget.width,
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            Row(
              children: [
                MouseRegion(
                  cursor: SystemMouseCursors.click,
                  onEnter: (_) => setState(
                    () => _color = Colors.blueGrey,
                  ),
                  onExit: (_) => setState(() => _color = Colors.grey),
                  child: GestureDetector(
                    onTap: () {
                      setState(() => value = !value);
                      widget.onChanged(value);
                    },
                    child: Container(
                      padding: const EdgeInsets.symmetric(
                        horizontal: 4.0,
                        vertical: 6.0,
                      ),
                      decoration: BoxDecoration(
                        color: Colors.black12,
                        boxShadow: [
                          BoxShadow(
                            color: Colors.black.withOpacity(0.11),
                            blurRadius: 4.0,
                            offset: const Offset(
                              0.0,
                              2.0,
                            ), // changes position of shadow
                          ),
                        ],
                        borderRadius: const BorderRadius.all(
                          Radius.circular(6.0),
                        ),
                      ),
                      child: AnimatedOpacity(
                        duration: const Duration(milliseconds: 350),
                        curve: Curves.easeInOutCubic,
                        opacity: value ? 1.0 : 0.0,
                        child: const Icon(
                          Icons.check,
                          size: 8.0,
                          color: Colors.blue,
                        ),
                      ),
                    ),
                  ),
                ),
                const SizedBox(width: 10.0),
                Expanded(
                  child: Text(
                    widget.title,
                    style: TextStyle(
                      fontSize: 14.0,
                      fontWeight: FontWeight.w600,
                      color: widget.textColor,
                    ),
                    textAlign: TextAlign.left,
                  ),
                ),
              ],
            ),
            if (widget.description != null)
              Padding(
                padding: const EdgeInsets.only(
                  left: 28.0,
                  top: 0.5,
                ),
                child: Text(
                  widget.description!,
                  style: const TextStyle(
                    fontSize: 13.0,
                    fontWeight: FontWeight.w500,
                    color: Colors.grey,
                  ),
                  textAlign: TextAlign.left,
                ),
              ),
          ],
        ),
      ),
    );
  }
}