import 'package:cryptocornars/common/utils/app_context.dart';
import 'package:cryptocornars/constants/global_variable.dart';
import 'package:flutter/material.dart';

class Toast {
  static void show(String msg, BuildContext context, double height) {
    Color textColor = Colors.white;
    Color backgroundColor = Colors.blueAccent;
    dismiss();
    Toast._createView(msg, context, backgroundColor, textColor, height);
  }

  static OverlayEntry? _overlayEntry;
  static bool isVisible = false;


  static void _createView(String msg, BuildContext context, Color background,

      Color textColor, double height) async {
    var overlayState = Overlay.of(context);
    AppContext.get();
    final themeData = Theme.of(context);

    _overlayEntry = OverlayEntry(
      builder: (BuildContext context) => _ToastAnimatedWidget(
        height: height,
        child: SizedBox(
          width: MediaQuery.of(context).size.width,
          child: Container(
            alignment: Alignment.center,
            width: MediaQuery.of(context).size.width,
            child: Container(
              decoration: BoxDecoration(
                color: GlobalVariable.whiteSmoke,
                borderRadius: BorderRadius.circular(10),
              ),
              margin: const EdgeInsets.symmetric(horizontal: 20),
              padding: const EdgeInsets.fromLTRB(16, 10, 16, 10),
              child: Text(
                msg,
                style: themeData.textTheme.bodyLarge?.copyWith(
                  color: GlobalVariable.platinum,
                  fontFamily: 'Roboto',
                  fontSize: 16,
                  fontWeight: FontWeight.w500,
                ),
              ),
            ),
          ),
        ),
      ),
    );
    isVisible = true;
    overlayState.insert(_overlayEntry!);
  }

  static dismiss() async {
    if (!isVisible) {
      return;
    }
    isVisible = false;
    _overlayEntry?.remove();
  }
}

class _ToastAnimatedWidget extends StatefulWidget {
  const _ToastAnimatedWidget({
    Key? key,
    required this.child,
    required this.height,
  }) : super(key: key);
  final double height;
  final Widget child;

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

class _ToastWidgetState extends State<_ToastAnimatedWidget>
    with SingleTickerProviderStateMixin {
  bool get _isVisible => true; //update this value later

  @override
  void initState() {
    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    return Positioned(
        bottom: widget.height,
        child: AnimatedOpacity(
          duration: const Duration(seconds: 2),
          opacity: _isVisible ? 1.0 : 0.0,
          child: widget.child,
        ));
  }
}