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package com.paymentlink.service; |
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import com.paymentlink.model.entity.Product; |
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import com.paymentlink.repository.ProductRepository; |
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import com.paymentlink.reservation.ReservationService; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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import org.springframework.stereotype.Service; |
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import org.springframework.transaction.annotation.Transactional; |
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import java.util.List; |
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import java.util.Optional; |
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@Service |
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public class ProductService { |
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private static final Logger logger = LoggerFactory.getLogger(ProductService.class); |
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private final ProductRepository productRepository; |
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private final ReservationService reservationService; |
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private final NodeIdService nodeIdService; |
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public ProductService(ProductRepository productRepository, |
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ReservationService reservationService, |
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NodeIdService nodeIdService) { |
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this.productRepository = productRepository; |
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this.reservationService = reservationService; |
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this.nodeIdService = nodeIdService; |
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} |
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* Get all products with adjusted stock (minus reservations) |
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*/ |
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public List<Product> getAllProducts() { |
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List<Product> products = productRepository.findAll(); |
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return adjustStockForReservations(products); |
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} |
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* Get products by category with adjusted stock |
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*/ |
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public List<Product> getProductsByCategory(String category) { |
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List<Product> products = productRepository.findByCategory(category); |
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return adjustStockForReservations(products); |
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} |
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* Search products with adjusted stock |
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*/ |
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public List<Product> searchProducts(String query, String category) { |
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List<Product> products; |
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if (category != null && !category.isEmpty()) { |
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products = productRepository.searchProductsByCategory(query, category); |
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} else { |
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products = productRepository.searchProducts(query); |
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} |
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return adjustStockForReservations(products); |
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} |
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* Get products in stock (after reservations) |
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*/ |
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public List<Product> getProductsInStock() { |
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List<Product> products = productRepository.findAll(); |
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products = adjustStockForReservations(products); |
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return products.stream() |
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.filter(p -> p.getStock() == null || p.getStock() > 0) |
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.toList(); |
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} |
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* Get product by ID with adjusted stock |
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*/ |
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public Optional<Product> getProductById(Long id) { |
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Optional<Product> product = productRepository.findById(id); |
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if (product.isPresent()) { |
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Product p = product.get(); |
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if (p.getStock() != null) { |
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int reserved = reservationService.getReservedCount(p.getId()); |
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p.setStock(Math.max(0, p.getStock() - reserved)); |
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} |
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} |
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return product; |
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} |
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* Get product by ID without adjustment (for internal use) |
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*/ |
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public Optional<Product> getProductByIdRaw(Long id) { |
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return productRepository.findById(id); |
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} |
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* Get all categories |
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*/ |
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public List<String> getAllCategories() { |
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return productRepository.findDistinctCategories(); |
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} |
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* Create a new product |
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*/ |
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@Transactional |
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public Product createProduct(Product product) { |
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product.setNodeId(nodeIdService.getNodeId()); |
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logger.info("Creating product: {}", product.getName()); |
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return productRepository.save(product); |
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} |
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* Update a product |
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*/ |
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@Transactional |
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public Optional<Product> updateProduct(Long id, Product updates) { |
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return productRepository.findById(id).map(existing -> { |
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if (updates.getName() != null) existing.setName(updates.getName()); |
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if (updates.getDescription() != null) existing.setDescription(updates.getDescription()); |
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if (updates.getPrice() != null) existing.setPrice(updates.getPrice()); |
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if (updates.getCurrency() != null) existing.setCurrency(updates.getCurrency()); |
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if (updates.getImage() != null) existing.setImage(updates.getImage()); |
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if (updates.getStock() != null) existing.setStock(updates.getStock()); |
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if (updates.getCategory() != null) existing.setCategory(updates.getCategory()); |
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if (updates.getTaxIncluded() != null) existing.setTaxIncluded(updates.getTaxIncluded()); |
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logger.info("Updating product: {}", id); |
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return productRepository.save(existing); |
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}); |
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} |
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* Delete a product |
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*/ |
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@Transactional |
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public boolean deleteProduct(Long id) { |
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if (productRepository.existsById(id)) { |
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productRepository.deleteById(id); |
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logger.info("Deleted product: {}", id); |
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return true; |
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} |
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return false; |
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} |
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* Update stock for a product |
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*/ |
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@Transactional |
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public void updateStock(Long productId, int newStock) { |
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productRepository.findById(productId).ifPresent(product -> { |
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product.setStock(newStock); |
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productRepository.save(product); |
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logger.info("Updated stock for product {}: {}", productId, newStock); |
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}); |
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} |
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* Decrease stock (for order completion) |
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*/ |
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@Transactional |
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public void decreaseStock(Long productId, int quantity) { |
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productRepository.findById(productId).ifPresent(product -> { |
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if (product.getStock() != null) { |
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int newStock = product.getStock() - quantity; |
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product.setStock(Math.max(0, newStock)); |
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productRepository.save(product); |
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logger.info("Decreased stock for product {}: {} -> {}", |
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productId, product.getStock() + quantity, newStock); |
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} |
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}); |
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} |
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* Adjust stock counts for reservations |
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*/ |
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private List<Product> adjustStockForReservations(List<Product> products) { |
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return products.stream().map(p -> { |
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if (p.getStock() != null) { |
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int reserved = reservationService.getReservedCount(p.getId()); |
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p.setStock(Math.max(0, p.getStock() - reserved)); |
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} |
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return p; |
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}).toList(); |
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} |
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} |
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