import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:nuvolari/features/timeline/data_age_banner.dart';
import 'package:nuvolari/l10n/app_localizations.dart';

void main() {
  late AppLocalizations l10n;

  setUpAll(() async {
    l10n = await AppLocalizations.delegate.load(const Locale('it'));
  });

  group('formatDataAge', () {
    test('uses minutes below an hour', () {
      expect(formatDataAge(l10n, Duration.zero), 'Aggiornato ora');
      expect(
        formatDataAge(l10n, const Duration(minutes: 1)),
        'Aggiornato 1 minuto fa',
      );
      expect(
        formatDataAge(l10n, const Duration(minutes: 42)),
        'Aggiornato 42 minuti fa',
      );
      expect(
        formatDataAge(l10n, const Duration(minutes: 59, seconds: 59)),
        'Aggiornato 59 minuti fa',
      );
    });

    test('switches to hours at the hour mark', () {
      expect(
        formatDataAge(l10n, const Duration(hours: 1)),
        'Aggiornato 1 ora fa',
      );
      expect(
        formatDataAge(l10n, const Duration(hours: 5, minutes: 30)),
        'Aggiornato 5 ore fa',
      );
      expect(
        formatDataAge(l10n, const Duration(hours: 23, minutes: 59)),
        'Aggiornato 23 ore fa',
      );
    });

    // The bug this replaced rendered eight-month-old demo data as "Aggiornato
    // 342535 minuti fa", a number nobody converts in their head.
    test('switches to days beyond a day', () {
      expect(
        formatDataAge(l10n, const Duration(days: 1)),
        'Aggiornato 1 giorno fa',
      );
      expect(
        formatDataAge(l10n, const Duration(days: 4)),
        'Aggiornato 4 giorni fa',
      );
      expect(
        formatDataAge(l10n, const Duration(days: 238)),
        'Aggiornato 238 giorni fa',
      );
    });

    // Clock skew, or a worker publishing a frame stamped slightly ahead, must
    // not produce "Aggiornato -3 minuti fa".
    test('treats a negative age as now', () {
      expect(
        formatDataAge(l10n, const Duration(minutes: -5)),
        'Aggiornato ora',
      );
    });
  });
}