import 'package:flutter/material.dart';
import 'package:go_router/go_router.dart';
import 'package:webview_flutter/webview_flutter.dart';
import 'package:webview_flutter_android/webview_flutter_android.dart';
import 'package:webview_flutter_wkwebview/webview_flutter_wkwebview.dart';

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

  @override
  State<WebViewPage> createState() => _WebViewPageState();
}

class _WebViewPageState extends State<WebViewPage> {
  late final WebViewController _controller;

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

    late final PlatformWebViewControllerCreationParams params;
    if (WebViewPlatform.instance is WebKitWebViewPlatform) {
      params = WebKitWebViewControllerCreationParams(
        allowsInlineMediaPlayback: true,
        mediaTypesRequiringUserAction: const <PlaybackMediaTypes>{},
      );
    } else {
      params = const PlatformWebViewControllerCreationParams();
    }

    final WebViewController controller =
        WebViewController.fromPlatformCreationParams(params);

    controller
      ..setJavaScriptMode(JavaScriptMode.unrestricted)
      ..setBackgroundColor(const Color(0x00000000))
      ..setNavigationDelegate(
        NavigationDelegate(
          onProgress: (int progress) {
            debugPrint('WebView is loading (progress : $progress%)');
          },
          onPageStarted: (String url) {
            debugPrint('Page started loading: $url');
          },
          onPageFinished: (String url) {
            debugPrint('Page finished loading: $url');
          },
          onWebResourceError: (WebResourceError error) {
            debugPrint('''
Page resource error:
  code: ${error.errorCode}
  description: ${error.description}
  errorType: ${error.errorType}
  isForMainFrame: ${error.isForMainFrame}
          ''');
          },
          onNavigationRequest: (NavigationRequest request) {
            if (request.url.contains('bluetooth.html')) {
              // Intercept bluetooth.html and navigate to native BluetoothPage
              debugPrint(
                'Intercepting navigation to bluetooth.html -> Native Route',
              );
              // We need context to navigate, but initState doesn't have it easily available
              // inside this callback unless we store a reference or use a GlobalKey.
              // However, since we are in a State object, we can use 'context' if mounted?
              // Actually, NavigationDelegate callbacks are not bound to context directly.
              // We should probably move the controller creation or use a helper.
              // BUT, since this is a callback, 'context' of the State is available in the closure!

              // Warning: don't use 'context' across async gaps without checking mounted.
              // Since this is synchronous, it should be fine to schedule a navigation.

              // We must return NavigationDecision.prevent to stop WebView.
              // And execute navigation asynchronously to avoid blocking.
              Future.microtask(() {
                if (mounted) {
                  context.go('/bluetooth');
                }
              });
              return NavigationDecision.prevent;
            }
            return NavigationDecision.navigate;
          },
        ),
      )
      ..loadFlutterAsset(
        'assets/www/index.html',
      ); // CHANGED: Load Home directly

    if (controller.platform is AndroidWebViewController) {
      AndroidWebViewController.enableDebugging(true);
      (controller.platform as AndroidWebViewController)
          .setMediaPlaybackRequiresUserGesture(false);
    }

    _controller = controller;
  }

  @override
  Widget build(BuildContext context) {
    // We want the WebView to control the full screen, including status bar usually,
    // but SafeArea might be needed if the Web content doesn't handle padding.
    // Our CSS handles env(safe-area-inset-top), so we can disable SafeArea here
    // or keep top:false.
    return Scaffold(
      backgroundColor: Colors.white,
      body: WebViewWidget(controller: _controller),
    );
  }
}