APP MONETIZATION STRATEGIES

// In-App Purchase Implementation
class InAppPurchaseManager {
  static Future<void> optimizePurchaseFlow() async {
    // Dynamic pricing based on user profile
    final user = await User.getCurrent();
    final pricing = await _getPersonalizedPricing(user);
    
    // A/B test different purchase presentations
    final variant = ExperimentManager.getVariant(user.id, 'purchase_ui');
    
    switch (variant) {
      case 'bundle_focus':
        await _showBundleOffers(pricing);
        break;
      case 'individual_items':
        await _showIndividualItems(pricing);
        break;
      case 'limited_time':
        await _showTimeLimitedOffers(pricing);
        break;
    }
  }
  
  static Future<PricingStrategy> _getPersonalizedPricing(User user) async {
    final spendingProfile = await UserAnalytics.getSpendingProfile(user.id);
    final region = await LocationService.getUserRegion(user.id);
    
    // Adjust pricing based on purchasing power parity
    final basePrice = 2.99;
    final adjustedPrice = PricingEngine.adjustForRegion(basePrice, region);
    
    // Dynamic discounts for high-value users
    if (spendingProfile.isHighValue) {
      return PricingStrategy.premium(adjustedPrice * 1.2);
    } else if (spendingProfile.isPriceSensitive) {
      return PricingStrategy.value(adjustedPrice * 0.8);
    }
    
    return PricingStrategy.standard(adjustedPrice);
  }
  
  // Virtual currency system
  static Future<void> implementVirtualCurrency() async {
    final economy = VirtualEconomy();
    
    // Multiple earning methods
    economy.addEarningMethod(EarningMethod(
      type: 'daily_login',
      amount: 50,
      description: 'Daily check-in bonus',
    ));
    
    economy.addEarningMethod(EarningMethod(
      type: 'achievement',
      amount: 100,
      description: 'Complete achievements',
    ));
    
    economy.addEarningMethod(EarningMethod(
      type: 'video_ad',
      amount: 25,
      description: 'Watch rewarded videos',
    ));
    
    // Spending opportunities
    economy.addSpendingMethod(SpendingMethod(
      type: 'premium_content',
      cost: 200,
      description: 'Unlock premium features',
    ));
    
    economy.addSpendingMethod(SpendingMethod(
      type: 'cosmetic_upgrade',
      cost: 150,
      description: 'Customize appearance',
    ));
    
    // Balance virtual and real currency
    economy.setExchangeRate(realToVirtual: 100); // $1 = 100 coins
  }
  
  // Purchase analytics and optimization
  static Future<void> optimizePurchaseFunnel() async {
    final analytics = PurchaseAnalytics();
    
    // Track funnel steps
    analytics.trackStep('item_viewed');
    analytics.trackStep('purchase_initiated');
    analytics.trackStep('payment_method_selected');
    analytics.trackStep('purchase_completed');
    
    // Identify drop-off points
    final funnel = await analytics.getFunnelAnalysis();
    
    // Optimize worst-performing steps
    for (final step in funnel.getWorstSteps()) {
      switch (step.name) {
        case 'purchase_initiated':
          await _optimizePurchaseButton();
          break;
        case 'payment_method_selected':
          await _streamlinePaymentOptions();
          break;
        case 'purchase_completed':
          await _fixTechnicalIssues();
          break;
      }
    }
  }
  
  // Smart upselling
  static Future<void> implementSmartUpselling(User user, String itemId) async {
    final purchaseHistory = await PurchaseHistory.get(user.id);
    final recommendations = await RecommendationEngine.getUpsells(
      user: user,
      currentItem: itemId,
      history: purchaseHistory,
    );
    
    // Show contextual upsells at the right moment
    if (recommendations.isNotEmpty) {
      await _showUpsellDialog(recommendations, timing: 'post_purchase');
    }
  }
}