// TurboModule direct API (React Native 0.76+ New Architecture)
import { Platform } from 'react-native';
import NativeSingular from 'singular-react-native/jsNativeSingular';
import { 
  SingularIOSPurchase, 
  SingularAndroidPurchase 
} from 'singular-react-native';
import { 
  initConnection,
  getProducts,
  setPurchaseListener,
  finishTransaction,
  IAPResponseCode
} from 'react-native-iap';

// Helper function to convert price to a double
const getPriceAsDouble = (product) => {
  if (Platform.OS === 'android' && product.priceAmountMicros) {
    // Android: Convert priceAmountMicros to double
    return product.priceAmountMicros / 1000000.0;
  } else if (Platform.OS === 'ios') {
    // iOS: Parse price string (e.g., "$4.99" -> 4.99)
    const priceString = product.price.replace(/[^0-9.]/g, '');
    return parseFloat(priceString) || 0.0;
  }
  return 0.0; // Fallback
};

// Set up purchase listener
const handlePurchases = async () => {
  try {
    // Initialize connection
    await initConnection();

    // Set purchase listener
    setPurchaseListener(async ({ responseCode, results }) => {
      if (responseCode === IAPResponseCode.OK) {
        for (const purchase of results) {
          if (!purchase.acknowledged) {
            // Fetch product details
            const products = await getProducts({ skus: [purchase.productId] });
            const product = products.length > 0 ? products[0] : null;
            if (!product) return;

            // Create purchase object
            let singularPurchase = null;

            if (Platform.OS === 'ios') {
              singularPurchase = new SingularIOSPurchase(
                getPriceAsDouble(product),
                product.currency ?? 'USD',
                purchase.productId,
                purchase.transactionId ?? '',
                purchase.transactionReceipt
              );
            } else if (Platform.OS === 'android') {
              const jsonData = JSON.parse(purchase.transactionReceipt || '{}');
              const receipt = jsonData.purchaseToken || '';

              singularPurchase = new SingularAndroidPurchase(
                getPriceAsDouble(product),
                product.currency ?? 'USD',
                purchase.transactionReceipt,
                purchase.signatureAndroid
              );
            } else {
              return;
            }

            // Track in-app purchase
            NativeSingular.inAppPurchase('iap_purchase', singularPurchase);

            // Complete the purchase
            await finishTransaction(purchase, Platform.OS === 'ios');
          }
        }
      }
    });
  } catch (error) {
    console.error('Error handling purchases:', error);
  }
};

// Call handlePurchases when your app starts
handlePurchases();

// TurboModule direct API (React Native 0.76+ New Architecture)
import NativeSingular from 'singular-react-native/jsNativeSingular';

// Track revenue without product details
NativeSingular.revenue('USD', 4.99);

// TurboModule direct API (React Native 0.76+ New Architecture)
import NativeSingular from 'singular-react-native/jsNativeSingular';

// Track revenue with attributes
NativeSingular.revenueWithArgs('USD', 9.98, {
  productSKU: 'coin_package_abc123',
  productName: 'Coin Pack 10',
  productCategory: 'Bundles',
  productQuantity: 2,
  productPrice: 4.99,
  transaction_id: 'T12345'
});

// TurboModule direct API (React Native 0.76+ New Architecture)
import NativeSingular from 'singular-react-native/jsNativeSingular';

// Track custom revenue event
NativeSingular.customRevenue('PremiumUpgrade', 'USD', 9.99);

// TurboModule direct API (React Native 0.76+ New Architecture)
import NativeSingular from 'singular-react-native/jsNativeSingular';

// Track custom revenue event with attributes
NativeSingular.customRevenueWithArgs('PremiumBundlePurchase', 'USD', 99.99, {
  productSKU: 'premium_bundle_xyz',
  productName: 'Premium Bundle',
  productCategory: 'Bundles',
  productQuantity: 1,
  productPrice: 99.99,
  discount_applied: true
});