118 lines
3.5 KiB
Dart
118 lines
3.5 KiB
Dart
import 'dart:io';
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import 'package:flutter_contacts/flutter_contacts.dart';
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import 'package:permission_handler/permission_handler.dart';
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import 'package:shared_preferences/shared_preferences.dart';
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import '../config/app_phonebook_names.dart';
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import '../utils/logger.dart';
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class DeviceContactsService {
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DeviceContactsService._();
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static const _deniedKey = 'phonebook_denied';
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static final Map<String, String> _byLast10 = {};
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static bool _loaded = false;
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static bool get _supported => Platform.isAndroid || Platform.isIOS;
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static bool get isLoaded => _loaded;
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static int get knownNumbers => _byLast10.length;
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static String? _last10(String raw) {
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final digits = raw.replaceAll(RegExp(r'[^\d]'), '');
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if (digits.length < 10) return null;
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return digits.substring(digits.length - 10);
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}
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static String? nameForPhone(int phone) {
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if (!AppPhonebookNames.current.value) return null;
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if (_byLast10.isEmpty) return null;
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final key = _last10(phone.toString());
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if (key == null) return null;
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final name = _byLast10[key];
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if (name == null || name.trim().isEmpty) return null;
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return name.trim();
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}
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static Future<bool> hasPermission() async {
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if (!_supported) return false;
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try {
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return await Permission.contacts.isGranted;
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} catch (e) {
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logger.w('Телефонная книга: не удалось прочитать статус разрешения: $e');
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return false;
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}
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}
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static Future<void> loadFromStartup() async {
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if (_loaded || !_supported) return;
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if (!AppPhonebookNames.current.value) return;
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if (!await hasPermission()) return;
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await _forgetDenial();
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await _readBook();
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}
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static Future<bool> ensureLoadedInteractive({bool force = false}) async {
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if (!_supported) return false;
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if (!AppPhonebookNames.current.value) return false;
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if (_loaded && !force) return false;
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if (await hasPermission()) {
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await _forgetDenial();
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return _readBook();
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}
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final prefs = await SharedPreferences.getInstance();
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if (!force && prefs.getBool(_deniedKey) == true) return false;
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final granted = await FlutterContacts.requestPermission(readonly: true);
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if (!granted) {
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await prefs.setBool(_deniedKey, true);
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return false;
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}
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await prefs.remove(_deniedKey);
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return _readBook();
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}
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static Future<bool> reload() async {
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_loaded = false;
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_byLast10.clear();
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return ensureLoadedInteractive(force: true);
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}
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static Future<void> _forgetDenial() async {
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final prefs = await SharedPreferences.getInstance();
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if (prefs.getBool(_deniedKey) == true) await prefs.remove(_deniedKey);
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}
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static Future<bool> _readBook() async {
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try {
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FlutterContacts.config.includeNonVisibleOnAndroid = true;
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final contacts = await FlutterContacts.getContacts(withProperties: true);
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_byLast10.clear();
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for (final contact in contacts) {
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final name = contact.displayName.trim();
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if (name.isEmpty) continue;
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for (final phone in contact.phones) {
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final key = _last10(phone.number);
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if (key != null) {
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_byLast10.putIfAbsent(key, () => name);
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}
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}
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}
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_loaded = true;
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logger.i(
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'Телефонная книга: прочитано ${contacts.length} записей, '
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'${_byLast10.length} номеров',
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);
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return true;
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} catch (e) {
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logger.w('Телефонная книга: не удалось прочитать: $e');
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return false;
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}
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}
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}
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