import 'package:flutter/foundation.dart';
import 'package:hive_flutter/hive_flutter.dart';
import 'models/app_settings.dart';
import 'models/checklist_item.dart';
import 'models/daily_worship_log.dart';
import 'models/dzikir_counter.dart';
import 'models/quran_bookmark.dart';
import 'models/cached_prayer_times.dart';
import 'models/shalat_log.dart';
import 'models/tilawah_log.dart';
import 'models/dzikir_log.dart';
import 'models/puasa_log.dart';

/// Box name constants for Hive.
class HiveBoxes {
  HiveBoxes._();

  static const String settings = 'settings';
  static const String checklistItems = 'checklist_items';
  static const String worshipLogs = 'worship_logs';
  static const String dzikirCounters = 'dzikir_counters';
  static const String bookmarks = 'bookmarks';
  static const String cachedPrayerTimes = 'cached_prayer_times';
}

/// Initialize Hive and open all boxes.
Future<void> initHive() async {
  await Hive.initFlutter();

  // Register adapters
  Hive.registerAdapter(AppSettingsAdapter());
  Hive.registerAdapter(ChecklistItemAdapter());
  Hive.registerAdapter(DailyWorshipLogAdapter());
  Hive.registerAdapter(DzikirCounterAdapter());
  Hive.registerAdapter(QuranBookmarkAdapter());
  Hive.registerAdapter(CachedPrayerTimesAdapter());
  Hive.registerAdapter(ShalatLogAdapter());
  Hive.registerAdapter(TilawahLogAdapter());
  Hive.registerAdapter(DzikirLogAdapter());
  Hive.registerAdapter(PuasaLogAdapter());

  // Open boxes
  try {
    await Hive.openBox<AppSettings>(HiveBoxes.settings);
  } catch (e) {
    debugPrint('Settings box corrupted, resetting: $e');
    if (Hive.isBoxOpen(HiveBoxes.settings)) {
      await Hive.box<AppSettings>(HiveBoxes.settings).close();
    }
    await Hive.deleteBoxFromDisk(HiveBoxes.settings);
    await Hive.openBox<AppSettings>(HiveBoxes.settings);
  }

  await Hive.openBox<ChecklistItem>(HiveBoxes.checklistItems);
  final worshipBox = await Hive.openBox<DailyWorshipLog>(HiveBoxes.worshipLogs);
  await Hive.openBox<DzikirCounter>(HiveBoxes.dzikirCounters);
  await Hive.openBox<QuranBookmark>(HiveBoxes.bookmarks);
  await Hive.openBox<CachedPrayerTimes>(HiveBoxes.cachedPrayerTimes);

  // MIGRATION: Delete legacy logs that crash due to type casts (Map<String, bool> vs Map<String, ShalatLog>)
  final keysToDelete = [];
  for (final key in worshipBox.keys) {
    try {
      final log = worshipBox.get(key);
      if (log != null) {
        log.shalatLogs.values.toList(); // Force evaluation
      }
    } catch (_) {
      keysToDelete.add(key);
    }
  }
  
  if (keysToDelete.isNotEmpty) {
    await worshipBox.deleteAll(keysToDelete);
    debugPrint('Deleted ${keysToDelete.length} legacy worship logs.');
  }
}

/// Seeds default settings and checklist items on first launch.
Future<void> seedDefaults() async {
  // Seed AppSettings
  final settingsBox = Hive.box<AppSettings>(HiveBoxes.settings);
  if (settingsBox.isEmpty) {
    await settingsBox.put('default', AppSettings());
  }

  // Seed default checklist items
  final checklistBox = Hive.box<ChecklistItem>(HiveBoxes.checklistItems);
  if (checklistBox.isEmpty) {
    final defaults = [
      ChecklistItem(
          id: 'fajr', title: 'Sholat Fajr', category: 'sholat_fardhu', sortOrder: 0),
      ChecklistItem(
          id: 'dhuhr', title: 'Sholat Dhuhr', category: 'sholat_fardhu', sortOrder: 1),
      ChecklistItem(
          id: 'asr', title: 'Sholat Asr', category: 'sholat_fardhu', sortOrder: 2),
      ChecklistItem(
          id: 'maghrib', title: 'Sholat Maghrib', category: 'sholat_fardhu', sortOrder: 3),
      ChecklistItem(
          id: 'isha', title: 'Sholat Isha', category: 'sholat_fardhu', sortOrder: 4),
      ChecklistItem(
          id: 'tilawah', title: 'Tilawah Quran', category: 'tilawah',
          subtitle: '1 Juz', sortOrder: 5),
      ChecklistItem(
          id: 'dzikir_pagi', title: 'Dzikir Pagi', category: 'dzikir',
          subtitle: '1 session', sortOrder: 6),
      ChecklistItem(
          id: 'dzikir_petang', title: 'Dzikir Petang', category: 'dzikir',
          subtitle: '1 session', sortOrder: 7),
      ChecklistItem(
          id: 'rawatib', title: 'Sholat Sunnah Rawatib', category: 'sunnah', sortOrder: 8),
      ChecklistItem(
          id: 'shodaqoh', title: 'Shodaqoh', category: 'charity', sortOrder: 9),
    ];
    for (final item in defaults) {
      await checklistBox.put(item.id, item);
    }
  }
}