uco-mobile-poc/lib/app/modules/contacts_screen/controllers/contacts_screen_controller.dart

import 'package:flutter/cupertino.dart';
import 'package:flutter_contacts/flutter_contacts.dart';
import 'package:get/get.dart';
import 'package:permission_handler/permission_handler.dart';
import '../../../core/constants/app_contants.dart';
import '../../../core/constants/translation_keys.dart';
import '../../../core/dialogs/custom_loading.dart';
import '../../../custom_widgets/Fields/input_field.dart';
import '../../../custom_widgets/custom_toasty.dart';


class ContactsScreenController extends GetxController {
  static TextEditingController phoneController = TextEditingController();
  Contact? selectedContact;

  List<Contact> contactsList = [];
  RxList<Contact> filteredContacts = <Contact>[].obs;

  late InputField searchContacts;

  @override
  void onInit() {
    super.onInit();
    _loadContacts();
  }

  @override
  onReady() {
    super.onReady();
    searchContacts.controller?.addListener(() {
      if (searchContacts.getCustomText().isEmpty) {
        filteredContacts.assignAll(contactsList);
      } else {
        filteredContacts.value = contactsList.where((element) => element.name.first == searchContacts.getCustomText() || element.name.last == searchContacts.getCustomText()).toList();
      }
    });
  }

  Future<void> _loadContacts() async {
    /// Check if the app has permission to access contacts
    var status = await Permission.contacts.status;
    showLoader();
    if (status.isGranted) {
      /// Permission is granted, load contacts
      try {
        contactsList = await FlutterContacts.getContacts(withProperties: true, withAccounts: true, withPhoto: true, sorted: true, withThumbnail: true);
        filteredContacts.assignAll(contactsList);
        hideLoader();
      } catch (e) {
        print('Error loading contacts: $e');
        hideLoader();
      }
    } else {
      /// Permission is not granted, request permission
      await _requestPermissions();
      hideLoader();
    }
    hideLoader();
  }

  Future<void> _requestPermissions() async {
    /// Request contacts permission
    var status = await Permission.contacts.request();
    if (!status.isGranted) {
      Toasty.error(TranslationKeys.makeTranslation(TranslationKeys.textPermissionDenied));
    } else {
      /// Permission granted, load contacts
      await _loadContacts();
    }
  }

  /// Function to filter contacts based on search query
  void filterContacts(String searchText) {
    if (searchText.isEmpty) {
      filteredContacts.assignAll(contactsList);
    } else {
      searchText = searchText.toLowerCase();
      filteredContacts.assignAll(contactsList.where((contact) {
        // Check if either name or phone number matches the search text
        bool matchesName = contact.name.first.toLowerCase().contains(searchText) ||
            (contact.name.last != null && contact.name.last!.toLowerCase().contains(searchText));

        bool matchesPhoneNumber = false;
        for (var number in contact.phones) {
          if (number.number.toLowerCase().contains(searchText)) {
            matchesPhoneNumber = true;
            break;
          }
        }

        return matchesName || matchesPhoneNumber;
      }).toList());
    }
  }
  /// Phone number pattern
  String flattenPhoneNumber(String phoneStr) {
    return phoneStr.replaceAllMapped(RegExp(r'^(\+)|\D'), (Match m) {
      return m[0] == "+" ? "+" : "";
    });
  }

  void handleContactSelection(Contact selectedContact) {
    Get.back(result: {AppConstants.SELECTED_CONTACT: selectedContact});
  }

}