mohemm-flutter-app/lib/widgets/app_in_app_webview_screen.dart

import 'package:easy_localization/easy_localization.dart';
import 'package:flutter/material.dart';
import 'package:flutter_inappwebview/flutter_inappwebview.dart';
import 'package:mohem_flutter_app/classes/consts.dart';
import 'package:mohem_flutter_app/config/routes.dart';
import 'package:mohem_flutter_app/generated/locale_keys.g.dart';
import 'package:mohem_flutter_app/widgets/app_bar_widget.dart';
import 'package:permission_handler/permission_handler.dart';

class AppInAppWebViewScreen extends StatefulWidget {
  final String url;
  final String? title;

  const AppInAppWebViewScreen({
    Key? key,
    required this.url,
    this.title,
  }) : super(key: key);

  @override
  State<AppInAppWebViewScreen> createState() => _AppInAppWebViewScreenState();
}

class _AppInAppWebViewScreenState extends State<AppInAppWebViewScreen> {
  InAppWebViewController? _webViewController;
  double _progress = 0;
  String _title = "";

  @override
  void initState() {
    super.initState();
    _title = widget.title ?? "";
    _requestCameraPermission();
  }

  Future<void> _requestCameraPermission() async {
    try {
      PermissionStatus cameraStatus = await Permission.camera.status;
      if (!cameraStatus.isGranted) {
        await Permission.camera.request();
      }
    } catch (e) {
      debugPrint("Error requesting camera permission: $e");
    }
  }

  void _onHomeTapped() {
    if (ApiConsts.isDependetLogin) {
      Navigator.popUntil(context, ModalRoute.withName(AppRoutes.dashboardScreenForDependet));
    } else {
      Navigator.popUntil(context, ModalRoute.withName(AppRoutes.dashboard));
    }
  }

  Future<void> _handleBack() async {
    if (_webViewController != null && await _webViewController!.canGoBack()) {
      await _webViewController!.goBack();
    } else {
      if (mounted) {
        Navigator.pop(context);
      }
    }
  }

  @override
  Widget build(BuildContext context) {
    String displayTitle = _title.isNotEmpty ? _title : LocaleKeys.offerDetails.tr();

    return PopScope(
      canPop: false,
      onPopInvokedWithResult: (bool didPop, Object? result) async {
        if (didPop) return;
        await _handleBack();
      },
      child: Scaffold(
        backgroundColor: Colors.white,
        appBar: AppBarWidget(
          context,
          title: displayTitle,
          showHomeButton: true,
          onHomeTapped: _onHomeTapped,
          onBackTapped: () async {
            await _handleBack();
          },
        ),
        body: SafeArea(
          child: Stack(
            children: <Widget>[
              InAppWebView(
                initialUrlRequest: URLRequest(url: WebUri(widget.url)),
                initialSettings: InAppWebViewSettings(
                  javaScriptEnabled: true,
                  domStorageEnabled: true,
                  supportZoom: true,
                  mediaPlaybackRequiresUserGesture: false,
                  allowsInlineMediaPlayback: true,
                  javaScriptCanOpenWindowsAutomatically: true,
                  transparentBackground: false,
                  useShouldOverrideUrlLoading: false,
                  cacheEnabled: true,
                  clearCache: false,
                ),
                onWebViewCreated: (InAppWebViewController controller) {
                  _webViewController = controller;
                },
                onPermissionRequest: (InAppWebViewController controller, PermissionRequest permissionRequest) async {
                  debugPrint("InAppWebView onPermissionRequest: ${permissionRequest.resources}");
                  try {
                    PermissionStatus status = await Permission.camera.status;
                    if (!status.isGranted) {
                      await Permission.camera.request();
                    }
                  } catch (e) {
                    debugPrint("Error requesting camera permission: $e");
                  }
                  return PermissionResponse(
                    resources: permissionRequest.resources,
                    action: PermissionResponseAction.GRANT,
                  );
                },
                onProgressChanged: (InAppWebViewController controller, int progress) {
                  if (mounted) {
                    setState(() {
                      _progress = progress / 100;
                    });
                  }
                },
                onTitleChanged: (InAppWebViewController controller, String? title) {
                  if (widget.title == null || widget.title!.isEmpty) {
                    if (title != null && title.isNotEmpty && !title.startsWith("http")) {
                      if (mounted) {
                        setState(() {
                          _title = title;
                        });
                      }
                    }
                  }
                },
              ),
              if (_progress < 1.0)
                LinearProgressIndicator(
                  value: _progress,
                  color: const Color(0xFF168A89),
                  backgroundColor: Colors.transparent,
                  minHeight: 2.5,
                ),
            ],
          ),
        ),
      ),
    );
  }
}