import 'package:flutter/material.dart';
import 'package:go_router/go_router.dart';
import 'package:provider/provider.dart';
import 'package:qpay/screens/transaction_controller.dart';
import 'package:skeletonizer/skeletonizer.dart';

import 'integration_controller.dart';

class IntegrationScreen extends StatefulWidget {
  const IntegrationScreen({super.key});

  @override
  State<IntegrationScreen> createState() => _IntegrationScreenState();
}

class _IntegrationScreenState extends State<IntegrationScreen> {
  late IntegrationController controller;
  late TransactionController transactionController;

  bool integrating = false;

  @override
  void initState() {
    super.initState();
    controller = IntegrationController(context);
    transactionController = Provider.of<TransactionController>(
      context,
      listen: false,
    );

    controller.doIntegration();
  }

  void _showErrorSnackBar(String? message) {
    WidgetsBinding.instance.addPostFrameCallback((_) {
      ScaffoldMessenger.of(context).showSnackBar(
        SnackBar(
          content: Text(message.toString()),
          behavior: SnackBarBehavior.floating,
          backgroundColor: Colors.deepOrange,
        ),
      );
    });
  }


  @override
  void dispose() {
    controller.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('Completing your transaction'),
      ),
      body: ListenableBuilder(
        listenable: controller,
        builder: (context, child) {
          if (controller.model.status == 'SUCCESS') {
            WidgetsBinding.instance.addPostFrameCallback((_) {
              context.go('/receipt');
            });
          }

          return Container(
            padding: EdgeInsets.all(50),
            child: Center(
              child: Column(
                mainAxisAlignment: MainAxisAlignment.center,
                crossAxisAlignment: CrossAxisAlignment.center,
                children: [
                  SizedBox(height: 75),

                  Column(
                    children: [
                      Text(
                        'We\'ve successfully collected your funds. We are now '
                            'updating your billing account. This won\'t take long',
                        style: TextStyle(fontSize: 20),
                        textAlign: TextAlign.center,
                      ),
                      Image.asset('assets/peak-animation.gif', width: 150),
                      SizedBox(
                        width: 50,
                        child: LinearProgressIndicator(),
                      ),
                      SizedBox(height: 50),
                      if(controller.model.status == 'FAILED')
                      Column(
                        children: [
                          Text(
                            'We failed to update your billing account',
                            style: TextStyle(fontSize: 20),
                            textAlign: TextAlign.center,
                          ),
                          SizedBox(height: 20,),
                          Skeletonizer(
                            enabled: controller.model.isLoading,
                            child: OutlinedButton(
                              child: Text('Retry'),
                              onPressed: () {
                                controller.doIntegration();
                              },
                            ),
                          ),
                        ],
                      ),
                    ],
                  ),
                ],
              ),
            ),
          );
        },
      ),
    );
  }
}