import 'dart:async';

import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter_download_manager/flutter_download_manager.dart';
import 'package:flutter_downloader/flutter_downloader.dart';
import 'package:flutter_inappwebview/flutter_inappwebview.dart';
import 'package:generp/Utils/app_colors.dart';
import 'package:generp/Utils/commonWidgets.dart';
import 'package:permission_handler/permission_handler.dart';

import 'WebERPScreen.dart';

// const MAX_PROGRESS = 100;

Future runErpScreenApp2() async {
  await FlutterDownloader.initialize(
      debug: true // optional: set false to disable printing logs to console
  );
  await Permission.storage.request();
}
class WebWhizzdomScreen extends StatefulWidget {
  final String whizzdom_url;
  const WebWhizzdomScreen({super.key,required this.whizzdom_url});

  @override
  State<WebWhizzdomScreen> createState() => _WebWhizzdomScreenState();
}

class _WebWhizzdomScreenState extends State<WebWhizzdomScreen> {
  final Completer<InAppWebViewController> _controller =
  Completer<InAppWebViewController>();
  var empId = "";
  var sessionId = "";
  bool isLoading = true;
  InAppWebViewController? webViewController;
  PullToRefreshController? pullToRefreshController;
  PullToRefreshSettings pullToRefreshSettings = PullToRefreshSettings(
    color: AppColors.app_blue,
  );
  bool pullToRefreshEnabled = true;

  final GlobalKey webViewKey = GlobalKey();
  var dl = DownloadManager();
  @override
  void initState() {
    //  loadData();
    pullToRefreshController = kIsWeb
        ? null
        : PullToRefreshController(
      settings: pullToRefreshSettings,
      onRefresh: () async {
        if (defaultTargetPlatform == TargetPlatform.android) {
          webViewController?.reload();
        } else if (defaultTargetPlatform == TargetPlatform.iOS) {
          webViewController?.loadUrl(
              urlRequest:
              URLRequest(url: await webViewController?.getUrl()));
        }
      },
    );
    // print("URL:${widget.url}");
    super.initState();
  }

  @override
  void dispose() {
    super.dispose();
  }
  @override
  Widget build(BuildContext context) {
    return WillPopScope(
      onWillPop: () async {
        if (await webViewController!.canGoBack()) {
          webViewController!.goBack();
          return false; // Prevent default back button behavior
        }
        return true; // Allow default back button behavior
      },
      child: Scaffold(
        resizeToAvoidBottomInset: true,
        appBar: appbar(context, "Whizzdom"),
        body: Container(
            child: Column(children: <Widget>[
              Expanded(
                  child: Stack(
                    children: [
                      InAppWebView(
                        initialUrlRequest: URLRequest(
                          url: WebUri(widget.whizzdom_url),
                        ),
                        androidOnGeolocationPermissionsShowPrompt:
                            (InAppWebViewController controller, String origin) async {
                          return GeolocationPermissionShowPromptResponse(
                              origin: origin, allow: true, retain: true);
                        },
                        initialOptions: InAppWebViewGroupOptions(
                          android: AndroidInAppWebViewOptions(
                            useWideViewPort: true,
                            loadWithOverviewMode: true,
                            allowContentAccess: true,
                            geolocationEnabled: true,
                            allowFileAccess: true,
                            databaseEnabled: true, // Enables the WebView database
                            domStorageEnabled: true, // Enables DOM storage
                            builtInZoomControls:
                            true, // Enables the built-in zoom controls
                            displayZoomControls:
                            false, // Disables displaying zoom controls
                            safeBrowsingEnabled: true, // Enables Safe Browsing
                            clearSessionCache: true,
                          ),
                          ios: IOSInAppWebViewOptions(
                            allowsInlineMediaPlayback: true,
                          ),
                        ),


                        androidOnPermissionRequest: (InAppWebViewController controller,
                            String origin, List<String> resources) async {
                          return PermissionRequestResponse(
                              resources: resources,
                              action: PermissionRequestResponseAction.GRANT);
                        },
                        onWebViewCreated: (controller) {
                          webViewController = controller;
                          _controller.complete(controller);
                        },
                        pullToRefreshController: pullToRefreshController,
                        onLoadStart: (controller, url) {
                          return setState(() {
                            isLoading = true;
                          });
                        },
                        onLoadStop: (controller, url) {
                          pullToRefreshController?.endRefreshing();
                          return setState(() {
                            isLoading = false;
                          });
                        },
                        onReceivedError: (controller, request, error) {
                          pullToRefreshController?.endRefreshing();
                        },
                        onProgressChanged: (controller, progress) {
                          if (progress == 100) {
                            pullToRefreshController?.endRefreshing();
                          }
                        },

                      ),
                      if (isLoading) ...[Container(
                        color: Colors.white.withOpacity(0.7),
                        child: Column(
                          crossAxisAlignment: CrossAxisAlignment.center,
                          mainAxisAlignment: MainAxisAlignment.center,
                          children: [
                             SpinKitRing(
                              color: AppColors.app_blue,
                              lineWidth: 4,
                              // duration: Duration(seconds: 2),
                              size: 50,
                            ),
                            const SizedBox(
                              height: 15,
                            ),
                            SizedBox(
                              width: 200,
                              child: Text(
                                "Please wait.......",
                                textAlign: TextAlign.center,
                                style: TextStyle(
                                    decorationThickness: 0,
                                    fontSize: 15,
                                    fontWeight: FontWeight.normal,
                                    color: AppColors.app_blue),
                              ),
                            ),

                            // SvgPicture.asset("/assets/images/NutsLoader.gif")
                          ],
                        ),
                      )]
                    ],
                  ))
            ])),
      ),
    );
  }
}