import 'package:eatvio_app/core/prefs.dart';
import 'package:eatvio_app/core/prefs_keys.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:mockito/annotations.dart';
import 'package:mockito/mockito.dart';
import 'package:shared_preferences/shared_preferences.dart';

import 'prefs_test.mocks.dart';

@GenerateMocks([SharedPreferences])
void main() {
  group('Prefs', () {
    late MockSharedPreferences mockSharedPreferences;
    late Prefs prefs;

    setUp(() {
      mockSharedPreferences = MockSharedPreferences();
      prefs = Prefs(mockSharedPreferences);
    });

    test('setString stores string value', () async {
      when(mockSharedPreferences.setString('hasAnonymousTokenBeenSent', 'value'))
          .thenAnswer((_) async => true);

      await prefs.setString(PrefsKeys.hasAnonymousTokenBeenSent, 'value');

      verify(mockSharedPreferences.setString('hasAnonymousTokenBeenSent', 'value')).called(1);
    });

    test('getString retrieves string value', () {
      when(mockSharedPreferences.getString('hasAnonymousTokenBeenSent'))
          .thenReturn('value');

      final result = prefs.getString(PrefsKeys.hasAnonymousTokenBeenSent);

      expect(result, 'value');
      verify(mockSharedPreferences.getString('hasAnonymousTokenBeenSent')).called(1);
    });

    test('getString returns null when key does not exist', () {
      when(mockSharedPreferences.getString('hasAnonymousTokenBeenSent'))
          .thenReturn(null);

      final result = prefs.getString(PrefsKeys.hasAnonymousTokenBeenSent);

      expect(result, null);
    });

    test('setInt stores int value', () async {
      when(mockSharedPreferences.setInt('registrationDate', 12345))
          .thenAnswer((_) async => true);

      await prefs.setInt(PrefsKeys.registrationDate, 12345);

      verify(mockSharedPreferences.setInt('registrationDate', 12345)).called(1);
    });

    test('getInt retrieves int value', () {
      when(mockSharedPreferences.getInt('registrationDate'))
          .thenReturn(12345);

      final result = prefs.getInt(PrefsKeys.registrationDate);

      expect(result, 12345);
      verify(mockSharedPreferences.getInt('registrationDate')).called(1);
    });

    test('getInt returns null when key does not exist', () {
      when(mockSharedPreferences.getInt('registrationDate'))
          .thenReturn(null);

      final result = prefs.getInt(PrefsKeys.registrationDate);

      expect(result, null);
    });

    test('setBool stores bool value', () async {
      when(mockSharedPreferences.setBool('welcomeScreenWasShowed', true))
          .thenAnswer((_) async => true);

      await prefs.setBool(PrefsKeys.welcomeScreenWasShowed, true);

      verify(mockSharedPreferences.setBool('welcomeScreenWasShowed', true)).called(1);
    });

    test('getBool retrieves bool value', () {
      when(mockSharedPreferences.getBool('welcomeScreenWasShowed'))
          .thenReturn(true);

      final result = prefs.getBool(PrefsKeys.welcomeScreenWasShowed);

      expect(result, true);
      verify(mockSharedPreferences.getBool('welcomeScreenWasShowed')).called(1);
    });

    test('getBool returns null when key does not exist', () {
      when(mockSharedPreferences.getBool('welcomeScreenWasShowed'))
          .thenReturn(null);

      final result = prefs.getBool(PrefsKeys.welcomeScreenWasShowed);

      expect(result, null);
    });

    test('remove deletes key', () async {
      when(mockSharedPreferences.remove('hasAnonymousTokenBeenSent'))
          .thenAnswer((_) async => true);

      await prefs.remove(PrefsKeys.hasAnonymousTokenBeenSent);

      verify(mockSharedPreferences.remove('hasAnonymousTokenBeenSent')).called(1);
    });

    test('clear removes all keys', () async {
      when(mockSharedPreferences.clear())
          .thenAnswer((_) async => true);

      await prefs.clear();

      verify(mockSharedPreferences.clear()).called(1);
    });
  });
}