Update stock management in orders and rename save methods

00-backend/src/main/java/de/htwsaar/webshop/controller/OrderController.java

@@ -81,7 +81,7 @@ public class OrderController {
         }
         order.setId(null);
         order.getOrderItems().forEach(orderItem -> orderItem.setId(null));
-        Order saved = orderService.save(order);
+        Order saved = orderService.saveNew(order);
         return ResponseEntity.ok(saved != null);
     }
 
@@ -104,7 +104,7 @@ public class OrderController {
             return ResponseEntity.notFound().build();
         }
         order.setStatus(status);
-        return ResponseEntity.ok(orderService.save(order) != null);
+        return ResponseEntity.ok(orderService.saveNew(order) != null);
     }
 
     @RequestMapping(path = ORDER_BASE, method = RequestMethod.DELETE, produces = "application/json")

00-backend/src/main/java/de/htwsaar/webshop/repository/entities/Article.java

@@ -25,7 +25,6 @@ public class Article {
     @Column(name = "uuid", nullable = false, unique = true)
     private UUID uuid;
 
-    @Min(0)
     @Column(name = "stock", nullable = false)
     private Integer stock;
 

00-backend/src/main/java/de/htwsaar/webshop/service/ArticleService.java

@@ -3,6 +3,7 @@ package de.htwsaar.webshop.service;
 import de.htwsaar.webshop.model.ArticleModel;
 import de.htwsaar.webshop.model.ArticleWithImageModel;
 import de.htwsaar.webshop.repository.entities.Article;
+import de.htwsaar.webshop.repository.entities.OrderItem;
 
 import java.util.List;
 import java.util.UUID;
@@ -25,6 +26,8 @@ public interface ArticleService {
 
     Article update(Article article);
 
+    void diffStock(OrderItem orderItem);
+
     double getRating(Long id);
 
     double getRating(UUID uuid);

00-backend/src/main/java/de/htwsaar/webshop/service/OrderService.java

@@ -9,9 +9,9 @@ import java.util.Map;
 public interface OrderService {
     List<Order> findAll();
 
-    Order save(Order order);
+    Order saveNew(Order order);
 
-    Order save(OrderModel model);
+    Order saveNew(OrderModel model);
 
     void delete(Long orderId);
 

00-backend/src/main/java/de/htwsaar/webshop/service/impl/AccountServiceImpl.java

@@ -76,4 +76,6 @@ public class AccountServiceImpl implements AccountService {
     public boolean existsWithEmail(String email) {
         return accountRepository.existsAccountByEmail(email);
     }
+
+
 }

00-backend/src/main/java/de/htwsaar/webshop/service/impl/ArticleServiceImpl.java

@@ -6,9 +6,9 @@ import de.htwsaar.webshop.repository.ArticleRepository;
 import de.htwsaar.webshop.repository.ImageRepository;
 import de.htwsaar.webshop.repository.ReviewRepository;
 import de.htwsaar.webshop.repository.entities.Article;
+import de.htwsaar.webshop.repository.entities.OrderItem;
 import de.htwsaar.webshop.repository.entities.Review;
 import de.htwsaar.webshop.service.ArticleService;
-import de.htwsaar.webshop.service.ImageService;
 import jakarta.transaction.Transactional;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -75,6 +75,17 @@ public class ArticleServiceImpl implements ArticleService {
         return articleRepository.save(article);
     }
 
+    @Override
+    public void diffStock(OrderItem orderItem) {
+        Article a = orderItem.getArticle();
+        if (a == null) {
+            return;
+        }
+        log.info("Change Stock {} to {}", a.getStock(), a.getStock() - orderItem.getAmount());
+        a.setStock(a.getStock() - orderItem.getAmount());
+        articleRepository.save(a);
+    }
+
     @Override
     public double getRating(Long id) {
         return reviewRepository.streamReviewsByArticleId(id)

00-backend/src/main/java/de/htwsaar/webshop/service/impl/OrderServiceImpl.java

@@ -41,13 +41,13 @@ public class OrderServiceImpl implements OrderService {
     }
 
     @Override
-    public Order save(Order order) {
+    public Order saveNew(Order order) {
         return orderRepository.save(order);
     }
 
     @Override
-    public Order save(OrderModel model) {
+    public Order saveNew(OrderModel model) {
-        Order order = save(new Order(
+        Order order = saveNew(new Order(
                 model.getId(),
                 customerService.findById(model.getCustomerId()),
                 model.getTime(),
@@ -64,6 +64,7 @@ public class OrderServiceImpl implements OrderService {
         );
         log.info("Created Order from Model: {}", order);
         orderItemRepository.saveAll(order.getOrderItems());
+        order.getOrderItems().forEach(articleService::diffStock);
         return order;
     }