48 lines
1.6 KiB
Dart
48 lines
1.6 KiB
Dart
import 'dart:convert';
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import 'package:rental_income_tracker/models/app_settings.dart';
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import 'package:rental_income_tracker/models/monthly_rent_record.dart';
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import 'package:shared_preferences/shared_preferences.dart';
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class StorageService {
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static const _settingsKey = 'app_settings';
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static const _recordsKey = 'monthly_records';
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Future<AppSettings> loadSettings() async {
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final prefs = await SharedPreferences.getInstance();
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final raw = prefs.getString(_settingsKey);
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if (raw == null || raw.isEmpty) {
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return AppSettings.defaults();
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}
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return AppSettings.fromJson(jsonDecode(raw) as Map<String, dynamic>);
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}
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Future<void> saveSettings(AppSettings settings) async {
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final prefs = await SharedPreferences.getInstance();
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await prefs.setString(_settingsKey, jsonEncode(settings.toJson()));
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}
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Future<Map<String, MonthlyRentRecord>> loadRecords() async {
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final prefs = await SharedPreferences.getInstance();
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final raw = prefs.getString(_recordsKey);
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if (raw == null || raw.isEmpty) {
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return <String, MonthlyRentRecord>{};
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}
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final decoded = jsonDecode(raw) as Map<String, dynamic>;
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return decoded.map((key, value) {
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return MapEntry(
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key,
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MonthlyRentRecord.fromJson(value as Map<String, dynamic>),
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);
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});
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}
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Future<void> saveRecords(Map<String, MonthlyRentRecord> records) async {
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final prefs = await SharedPreferences.getInstance();
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final encoded = records.map((key, value) => MapEntry(key, value.toJson()));
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await prefs.setString(_recordsKey, jsonEncode(encoded));
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}
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}
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