//  Label StoreMax
//
//  Created by Anthony Gordon.
//  2023, WooSignal Ltd. All rights reserved.
//

//  Unless required by applicable law or agreed to in writing, software
//  distributed under the License is distributed on an "AS IS" BASIS,
//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

import 'package:flutter/material.dart';
import 'package:flutter_app/app/models/cart.dart';
import 'package:flutter_app/app/models/cart_line_item.dart';
import 'package:nylo_framework/nylo_framework.dart';

class CartIconWidget extends StatefulWidget {
  CartIconWidget({Key? key}) : super(key: key);

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

class _CartIconWidgetState extends State<CartIconWidget> {
  @override
  Widget build(BuildContext context) {
    return IconButton(
      icon: Stack(
        children: <Widget>[
          Positioned.fill(
            child: Align(
              child: Icon(Icons.shopping_cart, size: 20),
              alignment: Alignment.bottomCenter,
            ),
            bottom: 0,
          ),
          Positioned.fill(
            child: Align(
              child: NyFutureBuilder<List<CartLineItem>>(
                future: Cart.getInstance.getCart(),
                child: (BuildContext context,
                    data) {
                  List<int?> cartItems =
                  data.map((e) => e.quantity).toList();
                  String cartValue = "0";
                  if (cartItems.isNotEmpty) {
                    cartValue = cartItems
                        .reduce((value, element) => value! + element!)
                        .toString();
                  }
                  return Text(
                    cartValue,
                    style: Theme.of(context).textTheme.bodyMedium,
                    textAlign: TextAlign.center,
                  );
                },
              ),
              alignment: Alignment.topCenter,
            ),
            top: 0,
          )
        ],
      ),
      onPressed: () => Navigator.pushNamed(context, "/cart")
          .then((value) => setState(() {})),
    );
  }
}