Cache Usage

import 'package:zeus_app/cache/cache.dart';

// Get the singleton instance
final cache = CacheManager.instance;

final wallet = await cache.createWallet(
  name: 'Cash',
  currency: 'USD',
  initialBalance: 100.0,
);

print('Created wallet: ${wallet.id}');

final category = await cache.createCategory(
  name: 'Food',
  type: 'expense',  // or 'income'
  color: 0xFFFF5722,
  icon: 'restaurant',
);

final transaction = await cache.createTransaction(
  walletId: wallet.id,
  categoryId: category.id,
  amount: 25.50,
  type: 'expense',
  description: 'Lunch',
);

final wallets = await cache.wallets.findAll();
for (final wallet in wallets) {
  print('${wallet.name}: ${wallet.balance}');
}

final transactions = await cache.transactions.findByWallet(walletId);

final now = DateTime.now();
final startOfMonth = DateTime(now.year, now.month, 1);

final monthlyTransactions = await cache.transactions.findByDateRange(
  startOfMonth,
  now,
);

final expenseCategories = await cache.categories.findByType('expense');
final incomeCategories = await cache.categories.findByType('income');

// Get existing entity
final wallet = await cache.wallets.findById(walletId);

// Modify
final updated = wallet!.copyWith(
  name: 'Updated Name',
  balance: 150.0,
);

// Save (automatically marks as pendingUpdate)
await cache.wallets.save(updated);

await cache.wallets.delete(walletId);

await cache.wallets.delete(walletId, hardDelete: true);

// Store
await cache.put('user_settings', '{"theme": "dark"}');

// With TTL
await cache.put('temp_token', token, ttl: Duration(hours: 1));

// Retrieve
final settings = await cache.get<String>('user_settings');

// Delete
await cache.delete('user_settings');

final result = await cache.sync();

if (result.success) {
  print('Synced successfully');
} else {
  print('Sync failed: ${result.error}');
}

cache.syncProgress?.listen((progress) {
  print('${progress.step}: ${progress.percent}%');
});

if (cache.isSyncing) {
  print('Sync in progress...');
}

class TransactionService {
  final CacheManager _cache;

  TransactionService(this._cache);

  Future<void> addExpense({
    required String walletId,
    required double amount,
    required String categoryId,
    String? description,
  }) async {
    // Create transaction
    final transaction = await _cache.createTransaction(
      walletId: walletId,
      categoryId: categoryId,
      amount: amount,
      type: 'expense',
      description: description,
    );

    // Update wallet balance
    final wallet = await _cache.wallets.findById(walletId);
    if (wallet != null) {
      await _cache.wallets.save(
        wallet.copyWith(
          balance: wallet.balance - amount,
        ),
      );
    }

    // Trigger sync
    await _cache.sync();
  }

  Future<List<Transaction>> getMonthlyTransactions() async {
    final now = DateTime.now();
    final startOfMonth = DateTime(now.year, now.month, 1);
    
    return _cache.transactions.findByDateRange(
      startOfMonth,
      now,
    );
  }
}