Force currencies download when revoke turns off

lib/models/currencies.dart

@@ -4,6 +4,7 @@ import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:intl/intl.dart';
 import 'package:http/http.dart' as http;
+import 'package:shared_preferences/shared_preferences.dart';
 
 class Currencies {
  static const defaultExchangeRates = {
@@ -76,10 +77,34 @@ class Currencies {
  }
 }
 
-final currenciesProvider = FutureProvider<Currencies>((ref) async {
- var pref = await ref.watch(sharedPref.future);
+class CurrenciesNotifier extends AsyncNotifier<Currencies> {
+ static final provider = AsyncNotifierProvider<CurrenciesNotifier, Currencies>(
+ CurrenciesNotifier.new);
+ late SharedPreferences pref;
 
- Currencies readSavedCurrencies() {
+ @override
+ Future<Currencies> build() async {
+ pref = await ref.watch(sharedPref.future);
+
+ final String now = DateFormat("yyyy-MM-dd").format(DateTime.now());
+ // Let's search before if we already have downloaded the exchange rates
+ String? lastUpdate = pref.getString("lastUpdateCurrencies");
+ // if I have never updated the conversions or if I have updated before today
+ // I have to update
+ if (!(ref.read(RevokeInternetNotifier.provider).valueOrNull ?? false) &&
+ (lastUpdate == null || lastUpdate != now)) {
+ return _downloadCurrencies();
+ }
+ // If I already have the data of today I just use it, no need of read them
+ // from the web
+ return _readSavedCurrencies();
+ }
+
+ void forceCurrenciesDownload() async {
+ state = AsyncData(await _downloadCurrencies());
+ }
+
+ Currencies _readSavedCurrencies() {
  String? lastUpdate = pref.getString('lastUpdateCurrencies');
  String? currenciesRead = pref.getString('currenciesRates');
  if (currenciesRead != null) {
@@ -91,7 +116,7 @@ final currenciesProvider = FutureProvider<Currencies>((ref) async {
 
  /// Updates the currencies exchange rates with the latest values. It will also
  /// update the status at the end (updated or error)
- Future<Currencies> downloadCurrencies() async {
+ Future<Currencies> _downloadCurrencies() async {
  final stringRequest =
  Currencies.defaultExchangeRates.keys.where((e) => e != 'EUR').join('+');
  try {
@@ -128,19 +153,6 @@ final currenciesProvider = FutureProvider<Currencies>((ref) async {
  } catch (e) {
  debugPrint(e.toString());
  }
- return readSavedCurrencies();
- }
-
- final String now = DateFormat("yyyy-MM-dd").format(DateTime.now());
- // Let's search before if we already have downloaded the exchange rates
- String? lastUpdate = pref.getString("lastUpdateCurrencies");
- // if I have never updated the conversions or if I have updated before today
- // I have to update
- if (!(ref.read(RevokeInternetNotifier.provider).valueOrNull ?? false) &&
- (lastUpdate == null || lastUpdate != now)) {
- return downloadCurrencies();
+ return _readSavedCurrencies();
  }
- // If I already have the data of today I just use it, no need of read them
- // from the web
- return readSavedCurrencies();
-});
+}

lib/models/properties_list.dart

@@ -56,7 +56,7 @@ final propertiesListProvider = FutureProvider<List<Property>>((ref) async {
  removeTrailingZeros: removeTrailingZeros,
  name: PROPERTYX.volume),
  SimpleCustomProperty(
- ref.watch(currenciesProvider).when(
+ ref.watch(CurrenciesNotifier.provider).when(
  data: (currencies) => currencies.exchangeRates,
  error: (_, trace) => Currencies.defaultExchangeRates,
  loading: () => Currencies.defaultExchangeRates),

lib/pages/conversion_page.dart

@@ -36,7 +36,8 @@ class ConversionPage extends ConsumerWidget {
 
  Widget? subtitleWidget;
  if (currentProperty == PROPERTYX.currencies) {
- Currencies? currencies = ref.watch(currenciesProvider).valueOrNull;
+ Currencies? currencies =
+ ref.watch(CurrenciesNotifier.provider).valueOrNull;
  if (currencies == null) {
  subtitleWidget = const SizedBox(
  height: 30,

lib/pages/settings_page.dart

@@ -1,4 +1,5 @@
 import 'dart:io';
+import 'package:converterpro/models/currencies.dart';
 import 'package:converterpro/models/settings.dart';
 import 'package:converterpro/styles/consts.dart';
 import 'package:converterpro/utils/utils_widgets.dart';
@@ -135,6 +136,9 @@ class SettingsPage extends ConsumerWidget {
  );
  } else {
  ref.read(RevokeInternetNotifier.provider.notifier).set(val);
+ ref
+ .read(CurrenciesNotifier.provider.notifier)
+ .forceCurrenciesDownload();
  }
  },
  shape: const RoundedRectangleBorder(borderRadius: borderRadius),