import 'dart:async';

import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:nuvolari/core/region/region_config.dart';
import 'package:nuvolari/core/region/region_repository.dart';
import 'package:nuvolari/l10n/app_localizations.dart';
import 'package:nuvolari/main.dart';

void main() {
  // The region stays unresolved so the map screen holds its loading state. A
  // resolved config would instantiate the native map, which has no
  // implementation in the test harness.
  testWidgets('starts up in Italian with no app bar', (tester) async {
    await tester.pumpWidget(
      ProviderScope(
        overrides: [
          regionConfigProvider.overrideWith(
            (ref) => Completer<RegionConfig>().future,
          ),
        ],
        child: const NuvolariApp(),
      ),
    );
    await tester.pump();

    expect(find.text('Caricamento…'), findsOneWidget);
    // The title bar is gone: the launcher already names the app, and the map
    // uses the height instead.
    expect(find.byType(AppBar), findsNothing);
  });

  group('AppLocalizations', () {
    test('supports Italian', () {
      expect(
        AppLocalizations.supportedLocales.map((locale) => locale.languageCode),
        contains('it'),
      );
    });

    test('resolves Italian strings', () async {
      final l10n = await AppLocalizations.delegate.load(const Locale('it'));

      expect(l10n.appTitle, 'Nuvolari');
      expect(l10n.navRadar, 'Radar');
      expect(l10n.navAlerts, 'Allerte');
    });

    // The disclaimer is a compliance requirement, not copy: it must state both
    // that the app is independent and that official channels take precedence.
    test(
      'the disclaimer states independence and defers to official channels',
      () async {
        final l10n = await AppLocalizations.delegate.load(const Locale('it'));

        expect(l10n.sourcesDisclaimerBody, contains('indipendente'));
        expect(l10n.sourcesDisclaimerBody, contains('Arpa Piemonte'));
        expect(l10n.sourcesDisclaimerBody, contains('Protezione Civile'));
        expect(l10n.sourcesDisclaimerBody, contains('ufficiali'));
      },
    );

    test('pluralises the data age message', () async {
      final l10n = await AppLocalizations.delegate.load(const Locale('it'));

      expect(l10n.dataAgeMinutes(0), 'Aggiornato ora');
      expect(l10n.dataAgeMinutes(1), 'Aggiornato 1 minuto fa');
      expect(l10n.dataAgeMinutes(12), 'Aggiornato 12 minuti fa');
    });
  });
}