اريد تحسين قائمة عرض جهات الاتصال المحددة لشك افضل واكثر ملائمة واريد  عند النقر على زر تحديث قائمة التحويل  ان يتم اظهار الارقام المحددة في قائمة وتحديد لكل جهه المبلغ  المخصص له ثم يتم الاضافة دفعة واحدة
import 'dart:async';
import 'dart:convert';

import 'package:flutter/material.dart';
import 'package:telephony/telephony.dart';
import 'package:permission_handler/permission_handler.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:flutter_contacts/flutter_contacts.dart';
import 'package:url_launcher/url_launcher.dart';

void main() => runApp(SMSApp());

void onBackgroundMessage(SmsMessage message) {
  debugPrint("رسالة واردة في الخلفية: ${message.body}");
}

class SMSApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'تحويل رصيد متعدد',
      debugShowCheckedModeBanner: false,
      theme: ThemeData(
        colorScheme: ColorScheme.fromSeed(
          seedColor: const Color(0xFF1A73E8),
          primary: const Color(0xFF1A73E8),
          secondary: const Color(0xFF4285F4),
          tertiary: const Color(0xFF34A853),
          background: const Color(0xFFF8F9FA),
          surface: Colors.white,
          onPrimary: Colors.white,
          onSecondary: Colors.white,
          onBackground: const Color(0xFF202124),
          onSurface: const Color(0xFF202124),
        ),
        useMaterial3: true,
        fontFamily: 'Tajawal',
        appBarTheme: AppBarTheme(
          backgroundColor: const Color(0xFF1A73E8),
          foregroundColor: Colors.white,
          elevation: 0,
          centerTitle: true,
          titleTextStyle: const TextStyle(
            fontSize: 20,
            fontWeight: FontWeight.bold,
          ),
          iconTheme: const IconThemeData(color: Colors.white),
        ),
        cardTheme: CardTheme(
          color: Colors.white,
          elevation: 2,
          margin: const EdgeInsets.all(8),
          shape: RoundedRectangleBorder(
            borderRadius: BorderRadius.circular(16),
          ),
          surfaceTintColor: Colors.white,
        ),
        elevatedButtonTheme: ElevatedButtonThemeData(
          style: ElevatedButton.styleFrom(
            backgroundColor: const Color(0xFF1A73E8),
            foregroundColor: Colors.white,
            padding: const EdgeInsets.symmetric(horizontal: 24, vertical: 16),
            shape: RoundedRectangleBorder(
              borderRadius: BorderRadius.circular(12),
            ),
            elevation: 0,
            textStyle: const TextStyle(
              fontWeight: FontWeight.w600,
              fontSize: 16,
            ),
          ),
        ),
        outlinedButtonTheme: OutlinedButtonThemeData(
          style: OutlinedButton.styleFrom(
            padding: const EdgeInsets.symmetric(horizontal: 24, vertical: 16),
            shape: RoundedRectangleBorder(
              borderRadius: BorderRadius.circular(12),
            ),
            side: const BorderSide(width: 1.5, color: Color(0xFF1A73E8)),
            textStyle: const TextStyle(fontWeight: FontWeight.w600),
          ),
        ),
        textButtonTheme: TextButtonThemeData(
          style: TextButton.styleFrom(
            foregroundColor: const Color(0xFF1A73E8),
            textStyle: const TextStyle(fontWeight: FontWeight.w600),
          ),
        ),
        snackBarTheme: SnackBarThemeData(
          behavior: SnackBarBehavior.floating,
          shape: RoundedRectangleBorder(
            borderRadius: BorderRadius.circular(12),
          ),
          backgroundColor: const Color(0xFF1A73E8),
          contentTextStyle: const TextStyle(color: Colors.white),
        ),
        inputDecorationTheme: InputDecorationTheme(
          filled: true,
          fillColor: Colors.grey.shade50,
          border: OutlineInputBorder(
            borderRadius: BorderRadius.circular(12),
            borderSide: BorderSide.none,
          ),
          focusedBorder: OutlineInputBorder(
            borderRadius: BorderRadius.circular(12),
            borderSide: const BorderSide(color: Color(0xFF1A73E8), width: 2),
          ),
          contentPadding: const EdgeInsets.symmetric(
            horizontal: 16,
            vertical: 14,
          ),
        ),
        dialogTheme: DialogTheme(
          shape: RoundedRectangleBorder(
            borderRadius: BorderRadius.circular(20),
          ),
          backgroundColor: Colors.white,
          elevation: 8,
          surfaceTintColor: Colors.white,
        ),
        listTileTheme: ListTileThemeData(
          iconColor: const Color(0xFF1A73E8),
          contentPadding: const EdgeInsets.symmetric(horizontal: 16),
          shape: RoundedRectangleBorder(
            borderRadius: BorderRadius.circular(12),
          ),
        ),
        dividerTheme: DividerThemeData(
          color: Colors.grey.shade200,
          thickness: 1,
          space: 0,
        ),
        progressIndicatorTheme: const ProgressIndicatorThemeData(
          color: Color(0xFF1A73E8),
        ),
        chipTheme: ChipThemeData(
          backgroundColor: Colors.grey.shade100,
          selectedColor: const Color(0xFF1A73E8),
          secondarySelectedColor: const Color(0xFF1A73E8),
          disabledColor: Colors.grey.shade300,
          labelStyle: const TextStyle(color: Colors.black),
          secondaryLabelStyle: const TextStyle(color: Colors.white),
          brightness: Brightness.light,
          padding: EdgeInsets.symmetric(horizontal: 12, vertical: 4),
          shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(8)),
        ),
      ),
      home: SMSHomePage(),
    );
  }
}

class TransferItem {
  String number;
  int amount;
  String? pin;

  TransferItem({required this.number, required this.amount, this.pin});

  Map<String, dynamic> toMap() {
    return {'number': number, 'amount': amount, 'pin': pin};
  }

  factory TransferItem.fromMap(Map<String, dynamic> map) {
    return TransferItem(
      number: map['number'],
      amount: map['amount'],
      pin: map['pin'],
    );
  }
}

extension ContactExtensions on Contact {
  String initials() {
    if (displayName.isEmpty) return '';

    final parts = displayName.trim().split(RegExp(r'\s+'));
    if (parts.length == 1) {
      return parts[0].substring(0, 1).toUpperCase();
    } else {
      return (parts[0].substring(0, 1) + parts[1].substring(0, 1))
          .toUpperCase();
    }
  }
}

class SMSHomePage extends StatefulWidget {
  @override
  _SMSHomePageState createState() => _SMSHomePageState();
}

class _SMSHomePageState extends State<SMSHomePage> with WidgetsBindingObserver {
  final Telephony _telephony = Telephony.instance;
  SharedPreferences? _prefs;

  List<TransferItem> _transferList = [];
  String _selectedMethod = 'yemenMobile';
  bool _isTransferring = false;
  List<Map<String, dynamic>> _transferLogs = [];
  List<String> _savedNumbers = [];

  List<int> _savedAmounts = [];
  bool _didShowFavoritesDialog = false;

  @override
  void initState() {
    super.initState();
    WidgetsBinding.instance.addObserver(this);
    _initApp();
  }

  @override
  void dispose() {
    WidgetsBinding.instance.removeObserver(this);
    super.dispose();
  }

  Future<void> _initApp() async {
    _prefs = await SharedPreferences.getInstance();

    // Load amounts first
    List<String>? amountsStr = _prefs?.getStringList('savedAmounts');
    if (amountsStr != null) {
      _savedAmounts =
          amountsStr
              .map((e) => int.tryParse(e) ?? 0)
              .where((e) => e > 0)
              .toList();
    }

    // Show dialog to input amounts if empty, only once per run
    if (_savedAmounts.isEmpty && !_didShowFavoritesDialog) {
      _didShowFavoritesDialog = true;
      await Future.delayed(Duration.zero);
      await _showFavoritesDialog();
    }

    List<String>? savedTransfers = _prefs?.getStringList('transferList');
    if (savedTransfers != null && savedTransfers.isNotEmpty) {
      _transferList =
          savedTransfers
              .map(
                (e) => TransferItem.fromMap(
                  json.decode(e) as Map<String, dynamic>,
                ),
              )
              .toList();
    } else {
      _transferList = [];
    }

    _selectedMethod = _prefs?.getString('selectedMethod') ?? 'yemenMobile';
    _savedNumbers = _prefs?.getStringList('savedNumbers') ?? [];

    await _requestPermissions();

    if (mounted) setState(() {});
  }

  Future<bool> _requestPermissions() async {
    final phoneStatus = await Permission.phone.status;
    final contactsStatus = await Permission.contacts.status;

    if (!phoneStatus.isGranted || !contactsStatus.isGranted) {
      final status = await [Permission.phone, Permission.contacts].request();

      if (!status[Permission.phone]!.isGranted ||
          !status[Permission.contacts]!.isGranted) {
        _showSnackBar(
          'يجب منح أذونات المكالمات وجهات الاتصال لاستخدام التطبيق',
        );
        return false;
      }
    }
    return true;
  }

  Future<void> _saveTransferList() async {
    final list = _transferList.map((e) => json.encode(e.toMap())).toList();
    await _prefs?.setStringList('transferList', list);
  }

  Future<void> _saveSelectedMethod() async {
    await _prefs?.setString('selectedMethod', _selectedMethod);
  }

  Future<void> _saveSavedNumbers() async {
    await _prefs?.setStringList('savedNumbers', _savedNumbers);
  }

  Future<void> _saveSavedAmounts() async {
    List<String> strList = _savedAmounts.map((e) => e.toString()).toList();
    await _prefs?.setStringList('savedAmounts', strList);
  }

  void _showSnackBar(String msg) {
    ScaffoldMessenger.of(context).showSnackBar(
      SnackBar(
        content: Text(msg),
        behavior: SnackBarBehavior.floating,
        shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
      ),
    );
  }

  // دالة للحصول على اسم جهة اتصال من رقم هاتف مع البحث في جهات الاتصال (للمختصر)
  Future<String?> _getContactNameFromNumber(String number) async {
    final hasPermission = await Permission.contacts.status;
    if (!hasPermission.isGranted) {
      final status = await Permission.contacts.request();
      if (!status.isGranted) return null;
    }
    final contacts = await FlutterContacts.getContacts(withProperties: true);
    for (var contact in contacts) {
      for (var phone in contact.phones) {
        final normalizedPhone = phone.number.replaceAll(RegExp(r'[^\d+]'), '');
        final normalizedNumber = number.replaceAll(RegExp(r'[^\d+]'), '');
        if (normalizedPhone == normalizedNumber) {
          return contact.displayName;
        }
      }
    }
    return null;
  }

  // شاشة مفضلة المبالغ: إدخال و تعديل و حذف المبالغ
  Future<void> _showFavoritesDialog() async {
    final amountsController = TextEditingController();
    await showDialog(
      context: context,
      barrierDismissible: false,
      builder: (context) {
        return StatefulBuilder(
          builder: (context, setDialogState) {
            return AlertDialog(
              title: const Text('إعداد المبالغ المفضلة'),
              content: SizedBox(
                width: double.maxFinite,
                child: Column(
                  mainAxisSize: MainAxisSize.min,
                  children: [
                    if (_savedAmounts.isEmpty)
                      const Padding(
                        padding: EdgeInsets.all(8.0),
                        child: Text(
                          'الرجاء إدخال المبالغ التي ترغب باستخدامها لاختيارها عند إضافة جهة اتصال',
                          textAlign: TextAlign.center,
                        ),
                      ),
                    if (_savedAmounts.isNotEmpty)
                      Wrap(
                        spacing: 8,
                        runSpacing: 4,
                        children:
                            _savedAmounts.map((amt) {
                              return Chip(
                                label: Text('$amt'),
                                deleteIcon: const Icon(Icons.close),
                                onDeleted: () {
                                  setDialogState(() {
                                    _savedAmounts.remove(amt);
                                  });
                                },
                              );
                            }).toList(),
                      ),
                    const SizedBox(height: 16),
                    TextField(
                      controller: amountsController,
                      decoration: InputDecoration(
                        labelText: 'إضافة مبلغ جديد',
                        prefixIcon: Icon(Icons.add),
                        border: OutlineInputBorder(
                          borderRadius: BorderRadius.circular(12),
                        ),
                        suffixIcon: IconButton(
                          icon: const Icon(Icons.add_circle_outline),
                          onPressed: () {
                            final input = amountsController.text.trim();
                            final numAmount = int.tryParse(input);
                            if (numAmount == null || numAmount <= 0) {
                              _showSnackBar(
                                'يرجى إدخال مبلغ صحيح وكبير من صفر',
                              );
                              return;
                            }
                            if (_savedAmounts.contains(numAmount)) {
                              _showSnackBar('هذا المبلغ موجود بالفعل');
                              return;
                            }
                            setDialogState(() {
                              _savedAmounts.add(numAmount);
                              _savedAmounts.sort();
                              amountsController.clear();
                            });
                          },
                        ),
                      ),
                      keyboardType: TextInputType.number,
                      onSubmitted: (value) {
                        final numAmount = int.tryParse(value.trim());
                        if (numAmount == null || numAmount <= 0) {
                          _showSnackBar('يرجى إدخال مبلغ صحيح وكبير من صفر');
                          return;
                        }
                        if (_savedAmounts.contains(numAmount)) {
                          _showSnackBar('هذا المبلغ موجود بالفعل');
                          return;
                        }
                        setDialogState(() {
                          _savedAmounts.add(numAmount);
                          _savedAmounts.sort();
                          amountsController.clear();
                        });
                      },
                    ),
                  ],
                ),
              ),
              actions: [
                TextButton(
                  onPressed: () {
                    Navigator.pop(context);
                  },
                  child: const Text('تخطي'),
                ),
                ElevatedButton(
                  onPressed: () async {
                    if (_savedAmounts.isEmpty) {
                      _showSnackBar('الرجاء إدخال مبلغ واحد على الأقل');
                      return;
                    }
                    await _saveSavedAmounts();
                    Navigator.pop(context);
                  },
                  child: const Text('حفظ'),
                ),
              ],
            );
          },
        );
      },
    );
  }

  // شاشة اختيار المبالغ عند إضافة جهة اتصال
  Future<int?> _pickAmountDialog() async {
    if (_savedAmounts.isEmpty) {
      _showSnackBar('لا توجد مبالغ محفوظة. الرجاء إضافتها في الإعدادات.');
      return null;
    }
    int? selectedAmount;

    await showModalBottomSheet(
      context: context,
      builder: (context) {
        return SafeArea(
          child: Container(
            padding: const EdgeInsets.all(16),
            child: Wrap(
              spacing: 12,
              children:
                  _savedAmounts.map((amount) {
                    return ChoiceChip(
                      label: Text('$amount'),
                      selected: selectedAmount == amount,
                      onSelected: (_) {
                        selectedAmount = amount;
                        Navigator.pop(context);
                      },
                    );
                  }).toList(),
            ),
          ),
        );
      },
    );

    return selectedAmount;
  }

  void _showSavedNumbersSelection() async {
    final hasPermission = await _requestPermissions();
    if (!hasPermission) return;

    final contacts = await FlutterContacts.getContacts(
      withProperties: true,
      withThumbnail: true,
    );
    List<String> selectedNumbers = List.from(_savedNumbers);

    TextEditingController searchController = TextEditingController();
    String searchQuery = '';

    showModalBottomSheet(
      context: context,
      isScrollControlled: true,
      backgroundColor: Colors.transparent,
      builder: (context) {
        return StatefulBuilder(
          builder: (context, setModal) {
            final filteredContacts =
                (searchQuery.isEmpty)
                    ? contacts
                    : contacts.where((contact) {
                      final contactNameLower =
                          contact.displayName.toLowerCase();
                      final queryLower = searchQuery.toLowerCase();

                      final phonesMatch = contact.phones.any(
                        (phone) =>
                            phone.number.toLowerCase().contains(queryLower),
                      );

                      return contactNameLower.contains(queryLower) ||
                          phonesMatch;
                    }).toList();

            return Container(
              decoration: BoxDecoration(
                color: Theme.of(context).colorScheme.surface,
                borderRadius: const BorderRadius.vertical(
                  top: Radius.circular(24),
                ),
              ),
              height: MediaQuery.of(context).size.height * 0.75,
              padding: EdgeInsets.only(
                bottom: MediaQuery.of(context).viewInsets.bottom,
              ),
              child: Column(
                children: [
                  Padding(
                    padding: const EdgeInsets.all(16),
                    child: Row(
                      children: [
                        Expanded(
                          child: TextField(
                            controller: searchController,
                            decoration: InputDecoration(
                              prefixIcon: Icon(Icons.search),
                              hintText: 'ابحث في جهات الاتصال أو الأرقام',
                              border: OutlineInputBorder(
                                borderRadius: BorderRadius.circular(12),
                              ),
                              isDense: true,
                              contentPadding: const EdgeInsets.symmetric(
                                horizontal: 12,
                                vertical: 12,
                              ),
                            ),
                            onChanged: (value) {
                              setModal(() {
                                searchQuery = value.trim();
                              });
                            },
                          ),
                        ),
                        IconButton(
                          icon: Icon(
                            Icons.close,
                            color: Theme.of(context).colorScheme.onSurface,
                          ),
                          onPressed: () => Navigator.pop(context),
                        ),
                      ],
                    ),
                  ),
                  const Divider(height: 1),
                  Expanded(
                    child:
                        filteredContacts.isEmpty
                            ? Center(
                              child: Text(
                                'لا توجد جهات اتصال تطابق البحث',
                                style: TextStyle(
                                  color: Theme.of(
                                    context,
                                  ).colorScheme.onSurface.withOpacity(0.6),
                                ),
                              ),
                            )
                            : ListView.builder(
                              itemCount: filteredContacts.length,
                              itemBuilder: (context, index) {
                                final contact = filteredContacts[index];
                                final phones = contact.phones;

                                return Card(
                                  margin: const EdgeInsets.symmetric(
                                    horizontal: 12,
                                    vertical: 6,
                                  ),
                                  shape: RoundedRectangleBorder(
                                    borderRadius: BorderRadius.circular(12),
                                  ),
                                  elevation: 3,
                                  child: Padding(
                                    padding: const EdgeInsets.symmetric(
                                      vertical: 8,
                                      horizontal: 12,
                                    ),
                                    child: Column(
                                      crossAxisAlignment:
                                          CrossAxisAlignment.start,
                                      children: [
                                        ListTile(
                                          contentPadding: EdgeInsets.zero,
                                          leading: CircleAvatar(
                                            radius: 24,
                                            backgroundImage:
                                                (contact.thumbnail != null &&
                                                        contact
                                                            .thumbnail!
                                                            .isNotEmpty)
                                                    ? MemoryImage(
                                                      contact.thumbnail!,
                                                    )
                                                    : null,
                                            child:
                                                (contact.thumbnail == null ||
                                                        contact
                                                            .thumbnail!
                                                            .isEmpty)
                                                    ? Text(
                                                      contact.initials(),
                                                      style: TextStyle(
                                                        fontWeight:
                                                            FontWeight.bold,
                                                        color:
                                                            Theme.of(context)
                                                                .colorScheme
                                                                .onPrimary,
                                                      ),
                                                    )
                                                    : null,
                                            backgroundColor:
                                                Theme.of(
                                                  context,
                                                ).colorScheme.primary,
                                          ),
                                          title: Text(
                                            contact.displayName,
                                            style: TextStyle(
                                              fontWeight: FontWeight.bold,
                                              fontSize: 16,
                                            ),
                                          ),
                                        ),
                                        const SizedBox(height: 8),
                                        Column(
                                          children:
                                              phones.map((phone) {
                                                final normalized = phone.number
                                                    .replaceAll(
                                                      RegExp(r'[^\d+]'),
                                                      '',
                                                    );

                                                final isSelected =
                                                    selectedNumbers.any((num) {
                                                      final n = num.replaceAll(
                                                        RegExp(r'[^\d+]'),
                                                        '',
                                                      );
                                                      return n == normalized;
                                                    });

                                                return CheckboxListTile(
                                                  contentPadding:
                                                      EdgeInsets.zero,
                                                  value: isSelected,
                                                  title: Text(phone.number),
                                                  controlAffinity:
                                                      ListTileControlAffinity
                                                          .leading,
                                                  onChanged: (val) {
                                                    setModal(() {
                                                      if (val == true) {
                                                        if (!selectedNumbers.any(
                                                          (num) {
                                                            final n =
                                                                num.replaceAll(
                                                                  RegExp(
                                                                    r'[^\d+]',
                                                                  ),
                                                                  '',
                                                                );
                                                            return n ==
                                                                normalized;
                                                          },
                                                        )) {
                                                          selectedNumbers.add(
                                                            phone.number,
                                                          );
                                                        }
                                                      } else {
                                                        selectedNumbers
                                                            .removeWhere((num) {
                                                              final n =
                                                                  num.replaceAll(
                                                                    RegExp(
                                                                      r'[^\d+]',
                                                                    ),
                                                                    '',
                                                                  );
                                                              return n ==
                                                                  normalized;
                                                            });
                                                      }
                                                    });
                                                  },
                                                );
                                              }).toList(),
                                        ),
                                      ],
                                    ),
                                  ),
                                );
                              },
                            ),
                  ),
                  Padding(
                    padding: const EdgeInsets.all(16),
                    child: Row(
                      children: [
                        Expanded(
                          child: OutlinedButton(
                            onPressed: () => Navigator.pop(context),
                            child: const Text('إلغاء'),
                          ),
                        ),
                        const SizedBox(width: 12),
                        Expanded(
                          child: ElevatedButton(
                            onPressed: () async {
                              _savedNumbers = List.from(selectedNumbers);
                              await _saveSavedNumbers();
                              Navigator.pop(context);
                              _showSnackBar('تم حفظ الأرقام المختارة');
                              // فور حفظ الأرقام يمكن تحديث قائمة التحويل
                            },
                            child: const Text('حفظ'),
                          ),
                        ),
                      ],
                    ),
                  ),
                ],
              ),
            );
          },
        );
      },
    );
  }

  Future<void> _addTransfersFromSavedNumbers() async {
    for (var number in _savedNumbers) {
      if (!_transferList.any((element) => element.number == number)) {
        int chosenAmount = 0;
        chosenAmount = await _pickAmountDialog() ?? 0;

        if (chosenAmount <= 0) {
          _showSnackBar('تم تجاهل رقم $number لأنه لم يتم اختيار مبلغ صالح');
          continue;
        }
        _transferList.add(
          TransferItem(number: number, amount: chosenAmount, pin: '1234'),
        );
      }
    }
    await _saveTransferList();
    setState(() {});
  }

  void _removeTransferAt(int index) async {
    setState(() {
      _transferList.removeAt(index);
    });
    await _saveTransferList();
  }

  void _editTransfer(int index) {
    var item = _transferList[index];

    int? selectedAmount = item.amount;

    final pinController = TextEditingController(text: item.pin ?? '1234');

    showModalBottomSheet(
      context: context,
      isScrollControlled: true,
      backgroundColor: Colors.transparent,
      builder: (context) {
        return StatefulBuilder(
          builder: (context, setModal) {
            return Container(
              decoration: BoxDecoration(
                color: Theme.of(context).colorScheme.surface,
                borderRadius: const BorderRadius.vertical(
                  top: Radius.circular(24),
                ),
              ),
              padding: EdgeInsets.only(
                bottom: MediaQuery.of(context).viewInsets.bottom,
                top: 16,
                left: 16,
                right: 16,
              ),
              child: SingleChildScrollView(
                child: Column(
                  mainAxisSize: MainAxisSize.min,
                  children: [
                    Row(
                      mainAxisAlignment: MainAxisAlignment.spaceBetween,
                      children: [
                        Text(
                          "تعديل التحويل",
                          style: TextStyle(
                            fontWeight: FontWeight.bold,
                            fontSize: 18,
                            color: Theme.of(context).colorScheme.onSurface,
                          ),
                        ),
                        IconButton(
                          icon: Icon(
                            Icons.close,
                            color: Theme.of(context).colorScheme.onSurface,
                          ),
                          onPressed: () => Navigator.pop(context),
                        ),
                      ],
                    ),
                    SizedBox(height: 8),
                    Text(
                      item.number,
                      style: TextStyle(
                        color: Theme.of(
                          context,
                        ).colorScheme.onSurface.withOpacity(0.7),
                        fontWeight: FontWeight.w600,
                      ),
                    ),
                    const Divider(height: 24),
                    Align(
                      alignment: Alignment.centerRight,
                      child: Text(
                        'اختر المبلغ',
                        style: TextStyle(
                          color: Theme.of(context).colorScheme.onSurface,
                          fontWeight: FontWeight.w600,
                        ),
                      ),
                    ),
                    const SizedBox(height: 8),
                    Wrap(
                      spacing: 8,
                      children:
                          _savedAmounts.map((amt) {
                            return ChoiceChip(
                              label: Text('$amt'),
                              selected: selectedAmount == amt,
                              onSelected: (_) {
                                setModal(() {
                                  selectedAmount = amt;
                                });
                              },
                            );
                          }).toList(),
                    ),
                    if (_selectedMethod == 'yemenMobile' ||
                        _selectedMethod == 'sabafon')
                      Padding(
                        padding: const EdgeInsets.fromLTRB(0, 24, 0, 24),
                        child: TextField(
                          controller: pinController,
                          keyboardType: TextInputType.number,
                          decoration: InputDecoration(
                            labelText: "الرقم السري",
                            prefixIcon: Icon(Icons.lock_outline),
                            border: OutlineInputBorder(
                              borderRadius: BorderRadius.circular(12),
                            ),
                          ),
                          obscureText: true,
                        ),
                      )
                    else
                      const SizedBox(height: 24),
                    Row(
                      children: [
                        Expanded(
                          child: OutlinedButton(
                            onPressed: () => Navigator.pop(context),
                            child: const Text("إلغاء"),
                          ),
                        ),
                        const SizedBox(width: 12),
                        Expanded(
                          child: ElevatedButton(
                            onPressed: () async {
                              if (selectedAmount == null ||
                                  selectedAmount! <= 0) {
                                _showSnackBar(
                                  'يرجى اختيار مبلغ صحيح أكبر من صفر',
                                );
                                return;
                              }
                              setState(() {
                                _transferList[index].amount = selectedAmount!;
                                if (_selectedMethod == 'yemenMobile' ||
                                    _selectedMethod == 'sabafon') {
                                  final pinStr = pinController.text.trim();
                                  _transferList[index].pin =
                                      pinStr.isEmpty ? '1234' : pinStr;
                                } else {
                                  _transferList[index].pin = null;
                                }
                              });
                              await _saveTransferList();
                              Navigator.pop(context);
                            },
                            child: const Text("حفظ"),
                          ),
                        ),
                      ],
                    ),
                  ],
                ),
              ),
            );
          },
        );
      },
    );
  }

  Widget _buildTransferMethodMenu() {
    final Map<String, String> methodsMap = {
      'yemenMobile': 'يمن موبايل',
      'y': 'واي',
      'sabafon': 'سبأفون',
      'you': 'يو',
    };

    return PopupMenuButton<String>(
      icon: const Icon(Icons.compare_arrows),
      tooltip: 'طريقة التحويل',
      onSelected: (value) async {
        setState(() => _selectedMethod = value);
        await _saveSelectedMethod();
        if (_selectedMethod == 'yemenMobile' || _selectedMethod == 'sabafon') {
          for (var item in _transferList) {
            item.pin ??= '1234';
          }
        } else {
          for (var item in _transferList) {
            item.pin = null;
          }
        }
        setState(() {});
      },
      itemBuilder:
          (_) =>
              methodsMap.entries.map((entry) {
                return PopupMenuItem(
                  value: entry.key,
                  child: Text(entry.value),
                );
              }).toList(),
    );
  }

  String _buildUssdCode(TransferItem item) {
    final number = item.number;
    final amount = item.amount.toString();
    final pin = item.pin ?? '1234';

    switch (_selectedMethod) {
      case 'yemenMobile':
        return '*888*$amount*$number*$pin#';
      case 'y':
        return '*109*$amount*$number#';
      case 'sabafon':
        return '*123*$pin*$number*$amount#';
      case 'you':
        return '*130*$number*$amount#';
      default:
        return '';
    }
  }

  Future<void> _startTransferSequence() async {
    if (_transferList.isEmpty) {
      _showSnackBar("لا توجد معاملات للتحويل");
      return;
    }

    if (!await Permission.phone.isGranted) {
      final status = await Permission.phone.request();
      if (!status.isGranted) {
        _showSnackBar("يجب منح إذن الاتصال لإجراء تحويل الرصيد");
        return;
      }
    }

    setState(() => _isTransferring = true);
    _transferLogs.clear();

    for (var i = 0; i < _transferList.length; i++) {
      var item = _transferList[i];
      String ussdCode = _buildUssdCode(item);

      final encodedUssd = Uri.encodeComponent(ussdCode);
      final Uri uri = Uri.parse('tel:$encodedUssd');

      _showSnackBar(
        'جاري تحويل ${_getMethodName(_selectedMethod)}: ${item.amount} إلى ${item.number} (${i + 1}/${_transferList.length})',
      );

      try {
        if (await canLaunchUrl(uri)) {
          await launchUrl(uri);

          _transferLogs.add({
            'number': item.number,
            'amount': item.amount,
            'success': true,
            'method': _selectedMethod,
          });

          await Future.delayed(const Duration(seconds: 10));
        } else {
          _transferLogs.add({
            'number': item.number,
            'amount': item.amount,
            'success': false,
            'method': _selectedMethod,
            'error': 'تعذر تشغيل رمز USSD',
          });
        }
      } catch (e) {
        _transferLogs.add({
          'number': item.number,
          'amount': item.amount,
          'success': false,
          'method': _selectedMethod,
          'error': e.toString(),
        });
      }
    }

    setState(() => _isTransferring = false);
    _showSnackBar("تمت جميع عمليات التحويل");
  }

  String _getMethodName(String method) {
    switch (method) {
      case 'yemenMobile':
        return 'يمن موبايل';
      case 'y':
        return 'واي';
      case 'sabafon':
        return 'سبأفون';
      case 'you':
        return 'يو';
      default:
        return method;
    }
  }

  void _showTransferLogsDialog() {
    showDialog(
      context: context,
      builder: (context) {
        return Dialog(
          shape: RoundedRectangleBorder(
            borderRadius: BorderRadius.circular(20),
          ),
          child: Column(
            mainAxisSize: MainAxisSize.min,
            children: [
              Padding(
                padding: const EdgeInsets.all(16),
                child: Row(
                  mainAxisAlignment: MainAxisAlignment.spaceBetween,
                  children: [
                    Text(
                      'سجل عمليات التحويل',
                      style: TextStyle(
                        fontSize: 18,
                        fontWeight: FontWeight.bold,
                        color: Theme.of(context).colorScheme.onSurface,
                      ),
                    ),
                    IconButton(
                      icon: Icon(Icons.close),
                      onPressed: () => Navigator.pop(context),
                    ),
                  ],
                ),
              ),
              const Divider(height: 1),
              SizedBox(
                height: 300,
                width: double.maxFinite,
                child:
                    _transferLogs.isEmpty
                        ? Center(
                          child: Text(
                            'لا توجد عمليات تحويل حتى الآن',
                            style: TextStyle(
                              color: Theme.of(
                                context,
                              ).colorScheme.onSurface.withOpacity(0.6),
                            ),
                          ),
                        )
                        : ListView.builder(
                          itemCount: _transferLogs.length,
                          itemBuilder: (_, i) {
                            final log = _transferLogs[i];
                            final success = log['success'] as bool;
                            return ListTile(
                              leading: Container(
                                width: 36,
                                height: 36,
                                decoration: BoxDecoration(
                                  color:
                                      success
                                          ? Colors.green.shade50
                                          : Colors.red.shade50,
                                  shape: BoxShape.circle,
                                ),
                                child: Icon(
                                  success ? Icons.check : Icons.error,
                                  color: success ? Colors.green : Colors.red,
                                ),
                              ),
                              title: Text(
                                '${_getMethodName(log['method'])} - ${log['number']}',
                                style: TextStyle(
                                  fontWeight: FontWeight.w500,
                                  color:
                                      Theme.of(context).colorScheme.onSurface,
                                ),
                              ),
                              subtitle: Text(
                                'المبلغ: ${log['amount']}',
                                style: TextStyle(
                                  color: Theme.of(
                                    context,
                                  ).colorScheme.onSurface.withOpacity(0.6),
                                ),
                              ),
                              trailing:
                                  !success
                                      ? Tooltip(
                                        message:
                                            log['error'] ?? 'خطأ غير معروف',
                                        child: Icon(
                                          Icons.info_outline,
                                          color: Colors.red,
                                        ),
                                      )
                                      : null,
                            );
                          },
                        ),
              ),
              Padding(
                padding: const EdgeInsets.all(16),
                child: ElevatedButton(
                  onPressed: () => Navigator.pop(context),
                  child: const Text('إغلاق'),
                ),
              ),
            ],
          ),
        );
      },
    );
  }

  void _showAmountsManagementDialog() async {
    final amountsController = TextEditingController();

    await showDialog(
      context: context,
      builder: (context) {
        return StatefulBuilder(
          builder: (context, setDialogState) {
            return AlertDialog(
              title: const Text('إدارة المبالغ المحفوظة'),
              content: SizedBox(
                width: double.maxFinite,
                child: Column(
                  mainAxisSize: MainAxisSize.min,
                  children: [
                    if (_savedAmounts.isEmpty)
                      const Padding(
                        padding: EdgeInsets.all(8.0),
                        child: Text(
                          'لا توجد مبالغ محفوظة حالياً',
                          textAlign: TextAlign.center,
                        ),
                      ),
                    if (_savedAmounts.isNotEmpty)
                      Wrap(
                        spacing: 8,
                        runSpacing: 4,
                        children:
                            _savedAmounts.map((amt) {
                              return Chip(
                                label: Text('$amt'),
                                deleteIcon: const Icon(Icons.close),
                                onDeleted: () {
                                  setDialogState(() {
                                    _savedAmounts.remove(amt);
                                  });
                                },
                              );
                            }).toList(),
                      ),
                    const SizedBox(height: 16),
                    TextField(
                      controller: amountsController,
                      decoration: InputDecoration(
                        labelText: 'إضافة مبلغ جديد',
                        prefixIcon: Icon(Icons.add),
                        border: OutlineInputBorder(
                          borderRadius: BorderRadius.circular(12),
                        ),
                        suffixIcon: IconButton(
                          icon: const Icon(Icons.add_circle_outline),
                          onPressed: () {
                            final input = amountsController.text.trim();
                            final numAmount = int.tryParse(input);
                            if (numAmount == null || numAmount <= 0) {
                              _showSnackBar(
                                'يرجى إدخال مبلغ صحيح وكبير من صفر',
                              );
                              return;
                            }
                            if (_savedAmounts.contains(numAmount)) {
                              _showSnackBar('هذا المبلغ موجود بالفعل');
                              return;
                            }
                            setDialogState(() {
                              _savedAmounts.add(numAmount);
                              _savedAmounts.sort();
                              amountsController.clear();
                            });
                          },
                        ),
                      ),
                      keyboardType: TextInputType.number,
                      onSubmitted: (value) {
                        final numAmount = int.tryParse(value.trim());
                        if (numAmount == null || numAmount <= 0) {
                          _showSnackBar('يرجى إدخال مبلغ صحيح وكبير من صفر');
                          return;
                        }
                        if (_savedAmounts.contains(numAmount)) {
                          _showSnackBar('هذا المبلغ موجود بالفعل');
                          return;
                        }
                        setDialogState(() {
                          _savedAmounts.add(numAmount);
                          _savedAmounts.sort();
                          amountsController.clear();
                        });
                      },
                    ),
                  ],
                ),
              ),
              actions: [
                TextButton(
                  onPressed: () => Navigator.pop(context),
                  child: const Text('إغلاق'),
                ),
                ElevatedButton(
                  onPressed: () async {
                    await _saveSavedAmounts();
                    Navigator.pop(context);
                    _showSnackBar('تم حفظ المبالغ بنجاح');
                  },
                  child: const Text('حفظ'),
                ),
              ],
            );
          },
        );
      },
    );
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('تحويل رصيد متعدد'),
        actions: [
          IconButton(
            icon: const Icon(Icons.contacts),
            tooltip: 'إدارة الأرقام المحفوظة',
            onPressed: _showSavedNumbersSelection,
          ),
          IconButton(
            icon: const Icon(Icons.attach_money),
            tooltip: 'إدارة المبالغ المحفوظة',
            onPressed: _showAmountsManagementDialog,
          ),
          _buildTransferMethodMenu(),
        ],
      ),
      floatingActionButton: FloatingActionButton.extended(
        icon: const Icon(Icons.send_rounded),
        label:
            _isTransferring
                ? Row(
                  mainAxisSize: MainAxisSize.min,
                  children: const [
                    SizedBox(
                      width: 20,
                      height: 20,
                      child: CircularProgressIndicator(
                        color: Colors.white,
                        strokeWidth: 2,
                      ),
                    ),
                    SizedBox(width: 8),
                    Text('جار التحويل...'),
                  ],
                )
                : const Text('إجراء التحويلات'),
        onPressed: _isTransferring ? null : _startTransferSequence,
      ),
      body: Column(
        children: [
          Card(
            margin: const EdgeInsets.all(12),
            child: Padding(
              padding: const EdgeInsets.all(16),
              child: Column(
                children: [
                  Row(
                    children: [
                      Icon(
                        Icons.info_outline,
                        color: Theme.of(context).colorScheme.primary,
                      ),
                      const SizedBox(width: 8),
                      Text(
                        'طريقة التحويل الحالية',
                        style: TextStyle(
                          fontWeight: FontWeight.bold,
                          color: Theme.of(context).colorScheme.onSurface,
                        ),
                      ),
                    ],
                  ),
                  const SizedBox(height: 8),
                  Text(
                    _getMethodName(_selectedMethod),
                    style: TextStyle(
                      fontSize: 16,
                      color: Theme.of(
                        context,
                      ).colorScheme.onSurface.withOpacity(0.8),
                    ),
                  ),
                  const SizedBox(height: 12),
                  ElevatedButton.icon(
                    icon: const Icon(Icons.refresh),
                    label: const Text('تحديث قائمة التحويل'),
                    onPressed: () async {
                      await _addTransfersFromSavedNumbers();
                      _showSnackBar('تم تحديث قائمة التحويل بالأرقام المحفوظة');
                    },
                  ),
                ],
              ),
            ),
          ),

          // ------------- عرض المختصر (Chips) لجهات الاتصال المحددة  --------------------
          if (_savedNumbers.isNotEmpty)
            Container(
              margin: const EdgeInsets.symmetric(horizontal: 12, vertical: 8),
              alignment: Alignment.centerRight,
              child: SingleChildScrollView(
                scrollDirection: Axis.horizontal,
                child: Row(
                  children:
                      _savedNumbers.map((number) {
                        return FutureBuilder<String?>(
                          future: _getContactNameFromNumber(number),
                          builder: (context, snapshot) {
                            final displayName = snapshot.data ?? number;
                            return Padding(
                              padding: const EdgeInsets.only(left: 6),
                              child: Chip(
                                label: Text(
                                  displayName,
                                  style: TextStyle(
                                    color:
                                        Theme.of(context)
                                            .chipTheme
                                            .secondaryLabelStyle
                                            ?.color ??
                                        Colors.white,
                                  ),
                                ),
                                deleteIcon: Icon(
                                  Icons.close,
                                  color: Colors.white,
                                ),
                                onDeleted: () async {
                                  setState(() {
                                    _savedNumbers.remove(number);
                                  });
                                  await _saveSavedNumbers();
                                  _transferList.removeWhere(
                                    (item) => item.number == number,
                                  );
                                  await _saveTransferList();
                                  _showSnackBar('تم إزالة $displayName');
                                },
                                backgroundColor:
                                    Theme.of(context).chipTheme.selectedColor,
                                elevation: 1,
                              ),
                            );
                          },
                        );
                      }).toList(),
                ),
              ),
            ),
          const Divider(height: 1),

          Expanded(
            child:
                _transferList.isEmpty
                    ? Center(
                      child: Column(
                        mainAxisSize: MainAxisSize.min,
                        children: [
                          Icon(
                            Icons.phone_iphone_outlined,
                            size: 64,
                            color: Theme.of(
                              context,
                            ).colorScheme.onSurface.withOpacity(0.3),
                          ),
                          const SizedBox(height: 16),
                          Text(
                            'لا توجد عمليات تحويل',
                            style: TextStyle(
                              fontSize: 18,
                              color: Theme.of(
                                context,
                              ).colorScheme.onSurface.withOpacity(0.6),
                            ),
                          ),
                          const SizedBox(height: 8),
                          Text(
                            'أضف الأرقام المحفوظة أولاً',
                            style: TextStyle(
                              color: Theme.of(
                                context,
                              ).colorScheme.onSurface.withOpacity(0.5),
                            ),
                          ),
                        ],
                      ),
                    )
                    : ListView.builder(
                      itemCount: _transferList.length,
                      itemBuilder: (context, index) {
                        final item = _transferList[index];
                        return Dismissible(
                          key: Key('${item.number}_$index'),
                          background: Container(
                            margin: const EdgeInsets.symmetric(
                              horizontal: 12,
                              vertical: 6,
                            ),
                            decoration: BoxDecoration(
                              color: Colors.red.shade50,
                              borderRadius: BorderRadius.circular(16),
                            ),
                            alignment: Alignment.centerRight,
                            padding: const EdgeInsets.only(right: 24),
                            child: Icon(
                              Icons.delete,
                              color: Colors.red.shade400,
                            ),
                          ),
                          onDismissed: (direction) => _removeTransferAt(index),
                          child: Card(
                            margin: const EdgeInsets.symmetric(
                              horizontal: 12,
                              vertical: 6,
                            ),
                            child: ListTile(
                              leading: Container(
                                width: 40,
                                height: 40,
                                decoration: BoxDecoration(
                                  color: Theme.of(
                                    context,
                                  ).colorScheme.primary.withOpacity(0.1),
                                  shape: BoxShape.circle,
                                ),
                                child: Icon(
                                  Icons.phone_android,
                                  color: Theme.of(context).colorScheme.primary,
                                ),
                              ),
                              title: Text(
                                item.number,
                                style: TextStyle(
                                  fontWeight: FontWeight.w500,
                                  color:
                                      Theme.of(context).colorScheme.onSurface,
                                ),
                              ),
                              subtitle: Text(
                                'المبلغ: ${item.amount}',
                                style: TextStyle(
                                  color: Theme.of(
                                    context,
                                  ).colorScheme.onSurface.withOpacity(0.6),
                                ),
                              ),
                              trailing: Row(
                                mainAxisSize: MainAxisSize.min,
                                children: [
                                  IconButton(
                                    icon: Icon(
                                      Icons.edit,
                                      color:
                                          Theme.of(context).colorScheme.primary,
                                    ),
                                    onPressed: () => _editTransfer(index),
                                    tooltip: 'تعديل',
                                  ),
                                  IconButton(
                                    icon: Icon(
                                      Icons.delete_forever,
                                      color: Colors.red.shade400,
                                    ),
                                    onPressed: () => _removeTransferAt(index),
                                    tooltip: 'حذف',
                                  ),
                                ],
                              ),
                            ),
                          ),
                        );
                      },
                    ),
          ),

          if (_transferLogs.isNotEmpty)
            Padding(
              padding: const EdgeInsets.all(12),
              child: ElevatedButton.icon(
                icon: const Icon(Icons.history),
                label: const Text('عرض سجل التحويلات'),
                onPressed: _showTransferLogsDialog,
              ),
            ),
        ],
      ),
    );
  }
}

ملاحظة اريد الكود الكامل دفعة واحدة لاقوم باستخدامة مباشرة