66 lines
2.0 KiB
Dart
66 lines
2.0 KiB
Dart
import 'dart:convert';
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import 'package:shared_preferences/shared_preferences.dart';
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import '../models/price_data.dart';
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class StorageService {
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static const String _alertsKey = 'price_alerts';
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static const String _customAuecKey = 'custom_auec_amount';
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Future<List<PriceAlert>> getAlerts() async {
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final prefs = await SharedPreferences.getInstance();
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final alertsJson = prefs.getString(_alertsKey);
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if (alertsJson == null) return [];
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final List<dynamic> decoded = jsonDecode(alertsJson);
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return decoded.map((e) => PriceAlert.fromJson(e as Map<String, dynamic>)).toList();
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}
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Future<void> saveAlerts(List<PriceAlert> alerts) async {
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final prefs = await SharedPreferences.getInstance();
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final alertsJson = jsonEncode(alerts.map((e) => e.toJson()).toList());
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await prefs.setString(_alertsKey, alertsJson);
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}
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Future<void> addAlert(PriceAlert alert) async {
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final alerts = await getAlerts();
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alerts.add(alert);
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await saveAlerts(alerts);
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}
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Future<void> updateAlert(PriceAlert alert) async {
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final alerts = await getAlerts();
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final index = alerts.indexWhere((a) => a.id == alert.id);
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if (index != -1) {
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alerts[index] = alert;
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await saveAlerts(alerts);
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}
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}
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Future<void> deleteAlert(String id) async {
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final alerts = await getAlerts();
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alerts.removeWhere((a) => a.id == id);
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await saveAlerts(alerts);
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}
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Future<double?> getCustomAuecAmount() async {
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final prefs = await SharedPreferences.getInstance();
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return prefs.getDouble(_customAuecKey);
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}
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Future<void> setCustomAuecAmount(double amount) async {
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final prefs = await SharedPreferences.getInstance();
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await prefs.setDouble(_customAuecKey, amount);
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}
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// Generic string storage methods for update checking
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Future<String?> getString(String key) async {
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final prefs = await SharedPreferences.getInstance();
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return prefs.getString(key);
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}
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Future<void> setString(String key, String value) async {
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final prefs = await SharedPreferences.getInstance();
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await prefs.setString(key, value);
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}
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}
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