import 'package:flutter/material.dart';
import 'package:webview_flutter/webview_flutter.dart';

class WebPage extends StatefulWidget {
  final String url;
  final String title;
  const WebPage({super.key, required this.url, required this.title});

  @override
  State<WebPage> createState() => _WebPageState();
}

class _WebPageState extends State<WebPage> {
  late final WebViewController _controller;
  double _progress = 0.0;

  @override
  void initState() {
    super.initState();
    _controller = WebViewController()
      ..setJavaScriptMode(JavaScriptMode.unrestricted)
      ..setNavigationDelegate(
        NavigationDelegate(
          onProgress: (progress) {
            setState(() {
              _progress = progress / 100.0;
            });
          },
        ),
      )
      ..loadRequest(Uri.parse(widget.url));
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
        leading: IconButton(
          icon: const Icon(Icons.arrow_back),
          onPressed: () async {
            if (await _controller.canGoBack()) {
              _controller.goBack();
            } else {
              Navigator.of(context).pop();
            }
          },
        ),
        bottom: PreferredSize(
          preferredSize: const Size.fromHeight(2.0),
          child: _progress < 1.0 ? LinearProgressIndicator(value: _progress) : const SizedBox.shrink(),
        ),
      ),
      body: WebViewWidget(controller: _controller),
    );
  }
}