import 'dart:io';

import 'package:flutter/cupertino.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_download_manager/flutter_download_manager.dart';
import 'package:flutter_local_notifications/flutter_local_notifications.dart';
import 'package:generp/Utils/commonServices.dart';
import 'package:get/get.dart';
import 'package:intl/intl.dart';
import 'package:path_provider/path_provider.dart';
import 'package:permission_handler/permission_handler.dart';
import 'package:provider/provider.dart';
import 'package:url_launcher/url_launcher.dart';

import '../../Models/crmModels/LeadDetailsResponse.dart';
import '../../Utils/app_colors.dart';
import '../../services/api_calling.dart';
import '../HomeScreenNotifier.dart';
import 'package:http/http.dart' as http;
class crmLeadDetailsProvider extends ChangeNotifier {
  final FlutterLocalNotificationsPlugin _notificationsPlugin =
  FlutterLocalNotificationsPlugin();
  static const platform = MethodChannel('in.webgrid.generp/download');

  final GlobalKey webViewKey = GlobalKey();
  var dl = DownloadManager();
  bool _isLoading = false;
  bool _showMoreDetails = false;

  bool _leadDetailsLoading = true;

  var _showEditButton;
  TextEditingController nameController = TextEditingController();
  TextEditingController designationController = TextEditingController();
  TextEditingController mobileNumberController = TextEditingController();
  TextEditingController alternativeMobileController = TextEditingController();
  TextEditingController telephoneController = TextEditingController();
  TextEditingController emailController = TextEditingController();

  TextEditingController editNameController = TextEditingController();
  TextEditingController editDesignationController = TextEditingController();
  TextEditingController editMobileNumberController = TextEditingController();
  TextEditingController editAlternativeMobileController =
      TextEditingController();
  TextEditingController editTelephoneController = TextEditingController();
  TextEditingController editEmailController = TextEditingController();
  TextEditingController dateController = TextEditingController();
  TextEditingController noteController = TextEditingController();
  String? _nameError;
  String? _designationError;
  String? _mobileNumError;
  String? _altMobError;
  String? _teleError;
  String? _emailError;
  String? _noteError;

  String? _editNameError;
  String? _editDesignationError;
  String? _editMobileNumError;
  String? _editAltMobError;
  String? _editTeleError;
  String? _editEmailError;



  String? _dateError;

  LeadDetails _leadDetails = LeadDetails();
  AccountDetails _accountDetails = AccountDetails();
  List<LeadProducts> _leadProducts = [];
  List<ContactDetails> _contactDetails = [];
  List<FollowupDetails> _followupDetails = [];
  List<AppointmentDetails> _appointmentDetails = [];
  List<QuotationsDetails> _quotationsDetails = [];
  List<String> _visitTypes = [];
  String? _selectedVisitType;
  List<String> _headings = [];
  List<String> _subHeadings = [];
  DateTime? _date;
  String? _formattedDate;
  String? _formattedDateToSend;
  String? _visitTypeError = "";


  String? get formattedDateToSend => _formattedDateToSend;

  get showEditButton => _showEditButton;

  String? get nameError => _nameError;

  String? get designationError => _designationError;

  String? get mobileNumError => _mobileNumError;

  String? get altMobError => _altMobError;

  String? get teleError => _teleError;

  String? get emailError => _emailError;

  String? get noteError => _noteError;

  String? get visitTypeError => _visitTypeError;

  String? get editNameError => _editNameError;

  String? get editDesignationError => _editDesignationError;

  String? get editMobileNumError => _editMobileNumError;

  String? get editAltMobError => _editAltMobError;

  String? get editTeleError => _editTeleError;

  String? get editEmailError => _editEmailError;

  String? get dateError => _dateError;

  bool get isLoading => _isLoading;
  bool get leadDetailsLoading => _leadDetailsLoading;

  bool get showMoreDetails => _showMoreDetails;

  List<String> get visitTypes => _visitTypes;

  String? get selectedVisitType => _selectedVisitType;

  LeadDetails get leadDetails => _leadDetails;

  AccountDetails get accountDetails => _accountDetails;

  List<LeadProducts> get leadProducts => _leadProducts;

  List<ContactDetails> get contactDetails => _contactDetails;

  List<FollowupDetails> get followupDetails => _followupDetails;

  List<AppointmentDetails> get appointmentDetails => _appointmentDetails;

  List<QuotationsDetails> get quotationsDetails => _quotationsDetails;

  // List<String> get Headings => _headings;
  //
  // List<String> get subHeadings => _subHeadings;

  String? get formattedDate => _formattedDate;

  set selectedVisitType(String? value) {
    _selectedVisitType = value;
    _visitTypeError = "";
    notifyListeners();
  }

  set nameError(String? value) {
    _nameError = value;
    notifyListeners();
  }

  set designationError(String? value) {
    _designationError = value;
    notifyListeners();
  }

  set mobileNumError(String? value) {
    _mobileNumError = value;
    notifyListeners();
  }

  set altMobError(String? value) {
    _altMobError = value;
    notifyListeners();
  }

  set teleError(String? value) {
    _teleError = value;
    notifyListeners();
  }

  set emailError(String? value) {
    _emailError = value;
    notifyListeners();
  }

  set noteError(String? value) {
    _noteError = value;
    notifyListeners();
  }

  set editNameError(String? value) {
    _editNameError = value;
    notifyListeners();
  }

  set editDesignationError(String? value) {
    _editDesignationError = value;
    notifyListeners();
  }

  set editMobileNumError(String? value) {
    _editMobileNumError = value;
    notifyListeners();
  }

  set editAltMobError(String? value) {
    _editAltMobError = value;
    notifyListeners();
  }

  set editTeleError(String? value) {
    _editTeleError = value;
    notifyListeners();
  }

  set editEmailError(String? value) {
    _editEmailError = value;
    notifyListeners();
  }

  set isLoading(bool value) {
    _isLoading = value;
    notifyListeners();
  }

  set leadDetailsLoading(bool value){
    _leadDetailsLoading = value;
    notifyListeners();
  }

  set showMoreDetails(bool value) {
    _showMoreDetails = value;
    notifyListeners();
  }

  set formattedDate(String? value) {
    _formattedDate = value;
    dateController.text = _formattedDate!;
    _dateError = null;
    notifyListeners();
  }

  set dateError(value) {
    _dateError = value;
    notifyListeners();
  }

  void setDate(DateTime newDate) {
    _date = newDate;
    _formattedDate = DateFormat('d MMM yyyy').format(newDate);
    _formattedDateToSend = DateFormat('yyyy-MM-dd').format(newDate);
    dateController.text = _formattedDate!;
    _dateError = null;
    notifyListeners();
  }

  Future<void> crmLeadDetailsAPIFunction(context, leadID, mode) async {
    try {
      var HomeProv = Provider.of<HomescreenNotifier>(context, listen: false);
      final data = await ApiCalling.crmLeadDetailsAPI(
        HomeProv.empId,
        HomeProv.session,
        leadID,
        mode,
      );
      _leadDetailsLoading = true;
      notifyListeners();
      if (data != null) {
        if (data.sessionExists == 1) {
          if (data.error == "0") {
            print("calling");
            _leadDetails = data.leadDetails!;
            _accountDetails = data.accountDetails!;
            _leadProducts = data.leadProducts!;
            _contactDetails = data.contactDetails!;
            _followupDetails = data.followupDetails!;
            _appointmentDetails = data.appointmentDetails!;
            _quotationsDetails = data.quotationsDetails!;
            _showEditButton = data.showEditAccountButton;
            _visitTypes = ["Phone", "Visit"];
            _leadDetailsLoading = false;
            notifyListeners();
          } else {
            _leadDetailsLoading = false;
            notifyListeners();
          }
        } else {
          sessionDoesNotExist(context);
        }
      } else {
        _leadDetailsLoading = false;
        notifyListeners();
      }
    } catch (e, s) {
      _leadDetailsLoading = false;
      notifyListeners();
    }
  }

  Future<void> crmLeadDetailsAddContactAPIFunction(context, accID) async {
    try {
      if(!AddContactValidation()){
        return;
      }
      _isLoading = true;
      notifyListeners();
      var prov = Provider.of<HomescreenNotifier>(context, listen: false);
      final data = await ApiCalling.crmLeadDetailsAddContactAPI(
        prov.empId,
        prov.session,
        accID,
        nameController.text,
        mobileNumberController.text,
        designationController.text,
        alternativeMobileController.text,
        telephoneController.text,
        emailController.text,
      );

      if (data != null) {
        if (data.error == "0") {
          _leadDetailsLoading = false;
          nameController.clear();
          mobileNumberController.clear();
          designationController.clear();
          alternativeMobileController.clear();
          telephoneController.clear();
          emailController.clear();
          Navigator.pop(context, true);
          _isLoading = false;
          notifyListeners();
        } else {
          _isLoading = false;
          notifyListeners();
        }
      } else {
        _isLoading = false;
        notifyListeners();
      }
    } catch (e, s) {
      _isLoading = false;
      notifyListeners();
    }
  }



  Future<void> crmLeadDetailsEditContactAPIFunction(context, contactID) async {
    try {
      if(!editContactValidation()){
        return;
      }
      _isLoading = true;
      notifyListeners();
      var prov = Provider.of<HomescreenNotifier>(context, listen: false);
      final data = await ApiCalling.crmLeadDetailsEditContactAPI(
        prov.empId,
        prov.session,
        contactID,
        editNameController.text,
        editMobileNumberController.text,
        editDesignationController.text,
        editAlternativeMobileController.text,
        editTelephoneController.text,
        editEmailController.text,
      );
      if (data != null) {
        if (data.error == "0") {
          _isLoading = false;
          _leadDetailsLoading = false;
          editNameController.clear();
          editMobileNumberController.clear();
          editDesignationController.clear();
          editAlternativeMobileController.clear();
          editTelephoneController.clear();
          editEmailController.clear();
          Navigator.pop(context, true);
          notifyListeners();
        } else {
          _isLoading = false;
          notifyListeners();
        }
      } else {
        _isLoading = false;
        notifyListeners();
      }
    } catch (e, s) {
      _isLoading = false;
      notifyListeners();
    }
  }

  Future<void> crmDownloadQuotationFunction(
    context,
    leadId,
    quoteId,
    quotationType,
  ) async {
    try {
      var prov = Provider.of<HomescreenNotifier>(context, listen: false);
      final data = await ApiCalling.crmDownloadGenQuoteAPI(
        prov.empId,
        prov.session,
        leadId,
        quoteId,
        quotationType,
      );

      if (data != null) {
        if (data.sessionExists == 1) {
          if (data.error == "0") {
            String suggestedFilename = getUniqueFilename('quotation', 'pdf');
            String contentDisposition =
                'attachment; filename="$suggestedFilename"';
            // _handleDownload(data.quoteFilepath!);
            _handleDownload(
              context,
              data.quoteFilepath!,
              contentDisposition,
              'application/octet-stream',
              '',
            );
            notifyListeners();
          } else {
            notifyListeners();
          }
        } else {
          sessionDoesNotExist(context);
        }
      } else {
        notifyListeners();
      }
    } catch (e, s) {
      _isLoading = false;
      notifyListeners();
    }
  }

  Future<void> crmCheckFields(context, value, type) async {
    try {
      var prov = Provider.of<HomescreenNotifier>(context, listen: false);
      final data = await ApiCalling.crmCheckAccountFieldsApi(
        prov.empId,
        prov.session,
        value,
        type,
      );

      if (data != null) {
        if (data.error == "0") {
          nameError = null;
          mobileNumError = null;
          altMobError = null;
          notifyListeners();
        } else if (data.error == "1") {
          if (type == "name") {
            nameError = data.message!;
          } else if (type == 'mob1') {
            mobileNumError = data.message!;
          } else if (type == 'mob2') {
            altMobError = data.message!;
          }
          notifyListeners();
        }
      } else {
        notifyListeners();
      }
    } catch (e, s) {
      notifyListeners();
    }
  }

  Future<void> crmLeadDetailsAddAppointmentAPIFunction(
    context,
    leadID,
    appointmentDate,
    appointmentType,
    note,
  ) async {
    if(!validAppointment()){
      return;
    }
    _isLoading = true;
    notifyListeners();
    try {
      var prov = Provider.of<HomescreenNotifier>(context, listen: false);
      final data = await ApiCalling.crmLeadDetailsAddAppointmentAPI(
        prov.empId,
        prov.session,
        leadID,
        appointmentDate,
        appointmentType,
        note,
      );

      if (data != null) {
        if (data.error == "0") {
          _isLoading = false;
          _leadDetailsLoading = false;
          dateController.clear();
          noteController.clear();
          selectedVisitType = null;
          _selectedVisitType = null;
          Navigator.pop(context, true);

          _isLoading = false;
          notifyListeners();
        } else {
          _isLoading = false;
          notifyListeners();
        }
      } else {
        _isLoading = false;
        notifyListeners();
      }
    } catch (e, s) {
      _isLoading = false;
      notifyListeners();
    }
  }

  void showDatePickerDialog(BuildContext context) {
    showCupertinoModalPopup<void>(
      context: context,
      builder:
          (BuildContext context) => Container(
            height: 216,
            padding: const EdgeInsets.only(top: 6.0),
            margin: EdgeInsets.only(
              bottom: MediaQuery.of(context).viewInsets.bottom,
            ),
            color: CupertinoColors.systemBackground.resolveFrom(context),
            child: SafeArea(
              top: false,
              child: Column(
                children: [
                  Expanded(
                    flex: 2,
                    child: SizedBox(
                      height: 40,
                      child: Row(
                        mainAxisAlignment: MainAxisAlignment.spaceBetween,
                        children: [
                          CupertinoButton(
                            child: Text(
                              'Cancel',
                              style: TextStyle(
                                fontFamily: "JakartaMedium",
                                color: AppColors.app_blue,
                              ),
                            ),
                            onPressed: () {
                              Navigator.pop(context);
                            },
                          ),
                          CupertinoButton(
                            child: Text(
                              'Done',
                              style: TextStyle(
                                fontFamily: "JakartaMedium",
                                color: AppColors.app_blue,
                              ),
                            ),
                            onPressed: () {
                              setDate(_date ?? DateTime.now());
                              Navigator.pop(context);
                            },
                          ),
                        ],
                      ),
                    ),
                  ),
                  Expanded(
                    flex: 4,
                    child: CupertinoDatePicker(
                      dateOrder: DatePickerDateOrder.dmy,
                      initialDateTime: _date ?? DateTime.now(),
                      minimumDate: DateTime(DateTime.now().year, DateTime.now().month, DateTime.now().day),
                      mode: CupertinoDatePickerMode.date,
                      use24hFormat: true,
                      showDayOfWeek: true,
                      onDateTimeChanged: (DateTime newDate) {
                        setDate(newDate);
                      },
                    ),
                  ),
                ],
              ),
            ),
          ),
    );
  }

  List<List<dynamic>> prepareExportData() {
    final headers = [
      'Company Name:',
      'Contact Person Name:',
      'Mobile Number:',
      'Alternate Mobile Number:',
      'Email ID:',
      'Address:',
      'Product:',
      'Lead Received Date:',
    ];

    final rows =
        [
          leadDetails.name ?? "-",
          leadDetails.contName ?? "-",
          leadDetails.mob1 ?? "-",
          leadDetails.mob2 ?? "-",
          leadDetails.email ?? "-",
          leadDetails.address ?? "-",
          leadDetails.prod ?? "-",
          leadDetails.createdDatetime ?? "-",
        ].toList();

    return [headers, rows];
  }

  void copyToClipboard(BuildContext context) async {
    try {
      if (leadDetails == null) {
        ScaffoldMessenger.of(
          context,
        ).showSnackBar(SnackBar(content: Text("No data to copy")));
        return;
      }
      final data = prepareExportData();
      // if (data.isEmpty || data[1].every((element) => element == "-")) {
      //   ScaffoldMessenger.of(context).showSnackBar(
      //     SnackBar(content: Text("No valid data to copy")),
      //   );
      //   return;
      // }
      String raw = data.map((row) => row.join('\t')).join('\n');
      print('Clipboard data: $raw');
      await Clipboard.setData(ClipboardData(text: raw));
      ScaffoldMessenger.of(
        context,
      ).showSnackBar(SnackBar(content: Text("Copied to Clipboard")));
    } catch (e) {
      print('Error copying to clipboard: $e');
      ScaffoldMessenger.of(
        context,
      ).showSnackBar(SnackBar(content: Text("Failed to copy to clipboard")));
    }
  }


  Future<void> _handleDownload(
      context,
      String url,
      String contentDisposition,
      String mimeType,
      String suggestedFilename,
      ) async {
    // Request notification permission for Android 13+
    if (Platform.isIOS) {
      _handleIOSDownload(context, url, suggestedFilename);
    } else if (Platform.isAndroid) {
      if (await Permission.notification.request().isGranted) {
        try {
          // Show custom notification (optional, since DownloadManager shows its own)

          if (Platform.isAndroid) {
            // Call native Android Download Manager
            final userAgent = 'Flutter InAppWebView';
            await platform.invokeMethod('startDownload', {
              'url': url,
              'userAgent': userAgent,
              'contentDisposition': contentDisposition,
              'mimeType': mimeType,
              'suggestedFilename': suggestedFilename,
            });
            await launchUrl(
              Uri.parse(url),
              mode: LaunchMode.externalApplication,
            );
          } else if (Platform.isIOS) {
            _handleIOSDownload(context, url, suggestedFilename);
          }
        } catch (e) {
          print("Download Error $e");
        }
      } else {
        toast(context, "Notification Permission Denied");
      }
    }
  }

  Future<void> _handleIOSDownload(
      context,
      String url,
      String suggestedFilename,
      ) async {
    try {
      // Show initial download notification
      await _showDownloadNotification(0, suggestedFilename, isComplete: false);

      // Get the temporary directory for iOS
      final tempDir = await getTemporaryDirectory();
      final fileName =
      suggestedFilename.isNotEmpty
          ? suggestedFilename
          : url.split('/').last;
      final filePath = '${tempDir.path}/$fileName';

      // Download the file using http
      final response = await http.get(Uri.parse(url));
      if (response.statusCode == 200) {
        // Save the file
        final file = File(filePath);
        await file.writeAsBytes(response.bodyBytes);

        // Show completion notification
        await _showDownloadNotification(100, fileName, isComplete: true);

        // Optionally, open the file or notify the user
        toast(context, "File downloaded to $filePath");
      } else {
        throw Exception("Failed to download file: HTTP ${response.statusCode}");
      }
    } catch (e) {
      print("iOS Download Error: $e");
      await _showDownloadNotification(
        0,
        suggestedFilename,
        isComplete: false,
        isError: true,
      );
      toast(context, "Failed to download file: $e");
    }
  }
  String getUniqueFilename(String baseName, [String ext = 'pdf']) {
    final now = DateTime.now();
    final formattedDate = DateFormat('yyyyMMdd_HHmmss').format(now);
    return '${baseName}_$formattedDate.$ext';
  }

  Future<void> _showDownloadNotification(
      int progress,
      String fileName, {
        bool isComplete = false,
        bool isError = false,
      }) async {
    final androidDetails = AndroidNotificationDetails(
      'download_channel',
      'Downloads',
      channelDescription: 'Notifications for file downloads',
      importance: Importance.high,
      priority: Priority.high,
      showProgress: !isComplete && !isError,
      maxProgress: 100,
      progress: progress,
      ongoing: !isComplete && !isError,
      playSound: isComplete || isError,
      styleInformation: BigTextStyleInformation(
        isError
            ? 'Download failed for $fileName'
            : isComplete
            ? 'Download complete: $fileName'
            : 'Downloading $fileName...',
      ),
    );

    final iosDetails = DarwinNotificationDetails(
      presentAlert: true,
      presentBadge: true,
      presentSound: isComplete || isError,
      subtitle:
      isError
          ? 'Download failed'
          : isComplete
          ? 'Download complete'
          : 'Downloading...',
      threadIdentifier: 'download_thread',
    );

    final notificationDetails = NotificationDetails(
      android: androidDetails,
      iOS: iosDetails,
    );

    await _notificationsPlugin.show(
      fileName.hashCode, // Unique ID for the notification
      isError
          ? 'Download Failed'
          : isComplete
          ? 'Download Complete'
          : 'Downloading File',
      isError
          ? 'Failed to download $fileName'
          : isComplete
          ? 'Successfully downloaded $fileName'
          : 'Downloading $fileName ($progress%)',
      notificationDetails,
    );
  }

  void onChangeName(value) {
    _nameError = "";
    notifyListeners();
  }

  void onChangeDesignation(value) {
    _designationError = "";
    notifyListeners();
  }

  void onChangeMobile(value) {
    _mobileNumError = "";
    notifyListeners();
  }

  void onChangeAltMobile(value) {

    if(mobileNumberController.text.trim() == alternativeMobileController.text.trim()){
      _altMobError = "Mobile Number and Alternate Mobile Number Should not be same";
    }else{
      _altMobError = "";
    }
    notifyListeners();
  }

  void onChangeTelephone(value) {
    _teleError = "";
    notifyListeners();
  }

  void onChangeEmailId(value) {
    _emailError = "";
    notifyListeners();
  }

  void onChangeEditName(value) {
    _editNameError = "";
    notifyListeners();
  }

  void onChangeEditDesignation(value) {
    _editDesignationError = "";
    notifyListeners();
  }

  void onChangeEditMobile(value) {
    _editMobileNumError = "";
    notifyListeners();
  }

  void onChangeEditAltMobile(value) {
    if(editMobileNumberController.text.trim() == editAlternativeMobileController.text.trim()){
      _editAltMobError = "Mobile Number and Alternate Mobile Number Should not be same";
    }else{
      _editAltMobError = "";
    }
    notifyListeners();
  }

  void onChangeEditTelephone(value) {
    _editTeleError = "";
    notifyListeners();
  }

  void onChangeEditEmailId(value) {
    _editEmailError = "";
    notifyListeners();
  }

  void onChangeNote(value) {
    _noteError = "";
    notifyListeners();
  }

  bool AddContactValidation(){
    bool isValid  = true;
    _nameError = null;
    _designationError = null;
    _mobileNumError = null;
    _altMobError = null;
    _teleError = null;
    _emailError = null;
    _noteError = null;
    if(nameController.text.trim().isEmpty){
      _nameError = "Please Enter Name";

      isValid = false;
    }
    if(mobileNumberController.text.trim().isEmpty || mobileNumberController.text.length<10){
      _mobileNumError = "Please Enter Mobile Number 10 Digits";
      isValid = false;
    }
    if(alternativeMobileController.text.trim().isNotEmpty){
      if(alternativeMobileController.text.length<10){
        _altMobError = "Please Enter Mobile Number 10 Digits";
        isValid = false;
      }
    }
    if(mobileNumberController.text.trim() == alternativeMobileController.text.trim()){
      _altMobError = "Mobile Number and Alternate Mobile Number Should not be same";
      isValid = false;
    }
    if(emailController.text.isNotEmpty){
      final RegExp emailRegex = RegExp(
        r'^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$',
      );
      isValid = emailRegex.hasMatch(emailController.text.trim());
      if(!isValid){
        _emailError = "Please Enter Proper Email ID";
      }
    }
    _isLoading = false;
    notifyListeners();

    return isValid;
  }

  bool editContactValidation(){
    bool isValid  = true;
    _editNameError = null;
    _editDesignationError = null;
    _editMobileNumError = null;
    _editAltMobError = null;
    _editTeleError = null;
    _editEmailError = null;
    _noteError = null;
    if(editNameController.text.trim().isEmpty){
      _editNameError = "Please Enter Name";

      isValid = false;
    }
    if(editMobileNumberController.text.trim().isEmpty || editMobileNumberController.text.length<10){
      _editMobileNumError = "Please Enter Mobile Number 10 Digits";
      isValid = false;
    }
    if(editAlternativeMobileController.text.trim().isNotEmpty){
      if(editAlternativeMobileController.text.length<10){
        _editAltMobError = "Please Enter Mobile Number 10 Digits";
        isValid = false;
      }
    }
    if(editMobileNumberController.text.trim() == editAlternativeMobileController.text.trim()){
      _editAltMobError = "Mobile Number and Alternate Mobile Number Should not be same";
      isValid = false;
    }
    if(editEmailController.text.isNotEmpty){
      final RegExp emailRegex = RegExp(
        r'^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$',
      );
      isValid = emailRegex.hasMatch(editEmailController.text.trim());
      if(!isValid){
        _editEmailError = "Please Enter Proper Email ID";
      }
    }
    _isLoading = false;
    notifyListeners();

    return isValid;
  }

  bool validAppointment(){
    bool isValid  = true;

    _dateError = null;
    _visitTypeError = null;
    _noteError = null;

    if(dateController.text.trim().isEmpty){
      _dateError = "Please Enter Name";

      isValid = false;
    }
    if(_selectedVisitType==null || _selectedVisitType == ""){
      _visitTypeError = "Please Select Appointment Type";
      isValid = false;
    }

    if(noteController.text.trim().isEmpty){
      _noteError = "Please Enter Note";
      isValid = false;
    }

    _isLoading = false;
    notifyListeners();

    return isValid;
  }



  void resetAll() {
    _formattedDateToSend = null;
    _formattedDate = null;
    _date = null;
    nameController.clear();
    designationController.clear();
    mobileNumberController.clear();
    alternativeMobileController.clear();
    telephoneController.clear();
    emailController.clear();
    editNameController.clear();
    editDesignationController.clear();
    editMobileNumberController.clear();
    editAlternativeMobileController.clear();
    editTelephoneController.clear();
    editEmailController.clear();
    _nameError = "";
    _designationError = "";
    _mobileNumError = "";
    _altMobError = "";
    _teleError = "";
    _emailError = "";
    _editNameError = "";
    _editDesignationError = "";
    _editMobileNumError = "";
    _editAltMobError = "";
    _editTeleError = "";
    _editEmailError = "";
    _isLoading = false;
    _showMoreDetails = false;
    _leadDetailsLoading = true;
    notifyListeners();
  }
}