import 'package:flutter/material.dart';
import 'package:hiddingsel_app/constants/constant.dart';

/**
 * Inspiration: ToggleButtons https://www.youtube.com/watch?v=kVEguaQWGAY
 *
 */

class IconSwitch extends StatelessWidget {
  final Future<bool> _initFavorite;
  final Function(bool favorite) _onFavorite;
  final Gradient _gradientColor;
  final Color _defaultColor;
  final IconData _iconFavorite;
  final IconData _iconDefavorite;

  IconSwitch(this._onFavorite, {initFavorite, gradientColor, defaultColor = UIColors.grey5, iconFavorite = Icons.star, iconDefavorite = Icons.star_border_outlined})
      : _initFavorite = initFavorite ?? Future.value(false),
        _gradientColor = gradientColor ??
            LinearGradient(colors: [
              UIColors.white,
              UIColors.white,
            ]),
  _defaultColor = defaultColor,
        _iconFavorite = iconFavorite,
  _iconDefavorite = iconDefavorite;

  @override
  Widget build(BuildContext context) => FutureBuilder(
      future: _initFavorite,
      builder: (context, AsyncSnapshot snapshot) {
        bool _favorite = snapshot.data ?? false;
        return StatefulBuilder(
          builder: (context, setState) => IconButton(
            icon: _favorite
                ? ShaderMask(
                    shaderCallback: (Rect bounds) {
                      return _gradientColor.createShader(bounds);
                    },
                    child: Icon(
                      _iconFavorite,
                      color: Colors.white,
                    ),
                  )
                : Icon(
                    _iconDefavorite,
                    color: _defaultColor,
                  ),
            tooltip: 'Favorite',
            onPressed: () {
              _onFavorite(!_favorite);
              setState(() {
                _favorite = !_favorite;
              });
            },
          ),
        );
      },
    );
}