Inventory Firebase Adapter

Infrastructure adapter for the Supply Inventory domain using Cloud Firestore.

Philosophy

• DUMB Adapter: Translates Domain Entities to DTOs. No business logic.
• Event-Driven: Updates state based on StockReorderRequired and logs StockDepleted.

Features

• Repository: InventoryFirebaseRepository with saveItem, updateStock, getItemByProductId, logEvent.
• Listener: InventoryEventListener listens to StockDepleted and StockReorderRequired.
• DTO: InventoryItemFirestoreDTO.

Usage

final repo = InventoryFirebaseRepository();

// Save item
await repo.saveItem(stockItem, at: DateTime.now());

// Update stock manually (internal use)
await repo.updateStock(productId, quantity, at: DateTime.now());

// Listen to events
final listener = InventoryEventListener(repo);
// Hook up to event bus...