import 'package:cyberhybridhub/models/question_source_preference.dart';
import 'package:cyberhybridhub/repositories/question_source_config_repository.dart';
import 'package:flutter_test/flutter_test.dart';

void main() {
  setUp(() {
    QuestionSourceConfigRepository.instance.resetToDefaults();
  });

  test('mergeWithDefaults adds new sources from defaults', () {
    const List<QuestionSourcePreference> saved = <QuestionSourcePreference>[
      QuestionSourcePreference(
        id: 'market_history',
        label: 'Market question',
        description: 'Prospective price-move guessing game',
        enabled: true,
        ratio: 100,
      ),
    ];

    final List<QuestionSourcePreference> merged =
        QuestionSourceConfigRepository.mergeWithDefaults(saved);

    expect(merged.map((QuestionSourcePreference s) => s.id), <String>[
      'market_history',
      'spelling',
    ]);
    expect(
      merged.firstWhere((QuestionSourcePreference s) => s.id == 'market_history').ratio,
      100,
    );
    expect(
      merged.firstWhere((QuestionSourcePreference s) => s.id == 'spelling').comingSoon,
      isFalse,
    );
  });

  test('mergeWithDefaults drops removed legacy sources', () {
    const List<QuestionSourcePreference> saved = <QuestionSourcePreference>[
      QuestionSourcePreference(
        id: 'geography',
        label: 'Geography',
        description: 'Legacy',
        ratio: 25,
      ),
      QuestionSourcePreference(
        id: 'market_history',
        label: 'Market question',
        description: 'Prospective price-move guessing game',
        ratio: 75,
      ),
    ];

    final List<QuestionSourcePreference> merged =
        QuestionSourceConfigRepository.mergeWithDefaults(saved);

    expect(merged.map((QuestionSourcePreference s) => s.id), <String>[
      'market_history',
      'spelling',
    ]);
  });

  test('mergeWithDefaults refreshes labels and disables comingSoon sources', () {
    const List<QuestionSourcePreference> saved = <QuestionSourcePreference>[
      QuestionSourcePreference(
        id: 'market_history',
        label: 'Market history',
        description: 'Old description',
        ratio: 30,
      ),
      QuestionSourcePreference(
        id: 'spelling',
        label: 'Spelling',
        description: 'Old description',
        enabled: true,
        comingSoon: false,
        ratio: 70,
      ),
    ];

    final List<QuestionSourcePreference> merged =
        QuestionSourceConfigRepository.mergeWithDefaults(saved);

    final QuestionSourcePreference market = merged.firstWhere(
      (QuestionSourcePreference s) => s.id == 'market_history',
    );
    expect(market.label, 'Market question');
    expect(market.description, 'Prospective price-move guessing game');

    final QuestionSourcePreference spelling = merged.firstWhere(
      (QuestionSourcePreference s) => s.id == 'spelling',
    );
    expect(spelling.comingSoon, isFalse);
    expect(spelling.enabled, isTrue);
  });

  test('isSpellingFullyWeighted when spelling owns entire mix', () {
    final List<QuestionSourcePreference> sources =
        QuestionSourceConfigRepository.mergeWithDefaults(
      <QuestionSourcePreference>[
        const QuestionSourcePreference(
          id: 'market_history',
          label: 'Market question',
          description: 'Prospective price-move guessing game',
          enabled: true,
          ratio: 0,
        ),
        const QuestionSourcePreference(
          id: 'spelling',
          label: 'Spelling',
          description: 'Spell-check quiz from curated word lists',
          enabled: true,
          ratio: 100,
        ),
      ],
    );

    expect(
      QuestionSourceConfigRepository.isSpellingFullyWeighted(sources),
      isTrue,
    );
  });

  test('effectiveMix excludes disabled and comingSoon sources', () {
    final List<QuestionSourcePreference> sources =
        QuestionSourceConfigRepository.defaultPreferences;

    final Map<String, int> mix =
        QuestionSourceConfigRepository.effectiveMix(sources);

    expect(mix.containsKey('spelling'), isTrue);
    expect(mix.length, 2);
    expect(mix['market_history'], 50);
    expect(mix['spelling'], 50);
  });

  test('saveAll without active session updates in-memory preferences only', () async {
    await QuestionSourceConfigRepository.instance.saveAll(
      <QuestionSourcePreference>[
        const QuestionSourcePreference(
          id: 'market_history',
          label: 'Market question',
          description: 'Prospective price-move guessing game',
          enabled: true,
          ratio: 75,
        ),
        const QuestionSourcePreference(
          id: 'spelling',
          label: 'Spelling',
          description: 'Spell-check quiz from curated word lists',
          enabled: true,
          ratio: 25,
        ),
      ],
    );

    expect(
      QuestionSourceConfigRepository.instance.current
          .firstWhere((QuestionSourcePreference s) => s.id == 'market_history')
          .ratio,
      75,
    );
  });
}