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src/main/java/spring/boot/bookstore/service/order/OrderService.java
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package spring.boot.bookstore.service.order; | ||
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import java.util.List; | ||
import java.util.Set; | ||
import org.springframework.data.domain.Pageable; | ||
import spring.boot.bookstore.dto.order.OrderRequestDto; | ||
import spring.boot.bookstore.dto.order.OrderResponseDto; | ||
import spring.boot.bookstore.dto.orderitem.OrderItemResponseDto; | ||
import spring.boot.bookstore.model.Order; | ||
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public interface OrderService { | ||
OrderResponseDto create(Long id, OrderRequestDto orderRequestDto); | ||
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List<OrderResponseDto> findAllOrders(Long id, Pageable pageable); | ||
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OrderResponseDto updateOrderStatus(Long orderId, Order.Status status); | ||
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Set<OrderItemResponseDto> findAllOrderItems(Long orderId); | ||
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OrderItemResponseDto findOrderItemById(Long orderId, Long itemId); | ||
} |
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src/main/java/spring/boot/bookstore/service/order/OrderServiceImpl.java
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package spring.boot.bookstore.service.order; | ||
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import java.math.BigDecimal; | ||
import java.time.LocalDateTime; | ||
import java.util.List; | ||
import java.util.Set; | ||
import java.util.stream.Collectors; | ||
import lombok.RequiredArgsConstructor; | ||
import org.springframework.data.domain.Pageable; | ||
import org.springframework.stereotype.Service; | ||
import org.springframework.transaction.annotation.Transactional; | ||
import spring.boot.bookstore.dto.order.OrderRequestDto; | ||
import spring.boot.bookstore.dto.order.OrderResponseDto; | ||
import spring.boot.bookstore.dto.orderitem.OrderItemResponseDto; | ||
import spring.boot.bookstore.exception.EntityNotFoundException; | ||
import spring.boot.bookstore.mapper.OrderItemMapper; | ||
import spring.boot.bookstore.mapper.OrderMapper; | ||
import spring.boot.bookstore.model.Order; | ||
import spring.boot.bookstore.model.OrderItem; | ||
import spring.boot.bookstore.model.ShoppingCart; | ||
import spring.boot.bookstore.model.User; | ||
import spring.boot.bookstore.repository.OrderItemRepository; | ||
import spring.boot.bookstore.repository.OrderRepository; | ||
import spring.boot.bookstore.repository.shoppingcart.ShoppingCartRepository; | ||
import spring.boot.bookstore.service.shoppingcart.impl.ShoppingCartManager; | ||
import spring.boot.bookstore.service.user.UserService; | ||
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@Service | ||
@RequiredArgsConstructor | ||
public class OrderServiceImpl implements OrderService { | ||
private final OrderItemMapper orderItemMapper; | ||
private final OrderMapper orderMapper; | ||
private final OrderRepository repository; | ||
private final ShoppingCartRepository shoppingCartRepository; | ||
private final UserService userService; | ||
private final ShoppingCartManager registerNewCart; | ||
private final OrderItemRepository orderItemRepository; | ||
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@Override | ||
public OrderResponseDto create(Long id, OrderRequestDto orderRequestDto) { | ||
User authUser = userService.getAuthenticated(); | ||
ShoppingCart shoppingCart = shoppingCartRepository.getUserById(authUser.getId()) | ||
.orElseGet(() -> registerNewCart.registerNewCart(authUser)); | ||
Order order = new Order(); | ||
order.setShippingAddress(orderRequestDto.getShippingAddress()); | ||
order.setUser(shoppingCart.getUser()); | ||
order.setTotal(BigDecimal.ZERO); | ||
order.setStatus(Order.Status.PENDING); | ||
Set<OrderItem> orderItems = getOrderItemsFromShoppingCart(shoppingCart, order); | ||
order.setOrderItems(orderItems); | ||
order.setOrderDate(LocalDateTime.now()); | ||
BigDecimal totalPrice = orderItems | ||
.stream() | ||
.map(orderItem -> orderItem | ||
.getBook() | ||
.getPrice() | ||
.multiply(new BigDecimal(orderItem.getQuantity()))) | ||
.reduce(BigDecimal.ZERO, BigDecimal::add); | ||
order.setTotal(totalPrice); | ||
return orderMapper.toDto(repository.save(order)); | ||
} | ||
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@Override | ||
public List<OrderResponseDto> findAllOrders(Long id, Pageable pageable) { | ||
return repository.findAllOrders(id).stream().map(orderMapper::toDto).toList(); | ||
} | ||
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@Override | ||
public OrderResponseDto updateOrderStatus(Long orderId, Order.Status status) { | ||
OrderItem orderItem = orderItemRepository.findById(orderId).orElseThrow( | ||
() -> new EntityNotFoundException("Can't find order by ID : " + orderId)); | ||
Order.Status newStatus = status; | ||
if (newStatus == null) { | ||
throw new IllegalArgumentException("Status cannot be null"); | ||
} | ||
orderItem.setStatus(newStatus); | ||
orderItemRepository.save(orderItem); | ||
return orderMapper.toDto(orderItem.getOrder()); | ||
} | ||
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@Override | ||
@Transactional | ||
public Set<OrderItemResponseDto> findAllOrderItems(Long orderId) { | ||
Order order = repository.findById(orderId) | ||
.orElseThrow( | ||
() -> new EntityNotFoundException("cant find Order using provided ID : " | ||
+ orderId)); | ||
return order.getOrderItems().stream() | ||
.map(orderItemMapper::toDto) | ||
.collect(Collectors.toSet()); | ||
} | ||
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private Set<OrderItem> getOrderItemsFromShoppingCart(ShoppingCart shoppingCart, Order order) { | ||
return shoppingCart.getCartItems().stream() | ||
.map(cartItem -> { | ||
OrderItem orderItem = new OrderItem(); | ||
orderItem.setBook(cartItem.getBook()); | ||
orderItem.setQuantity(cartItem.getQuantity()); | ||
orderItem.setOrder(order); | ||
orderItem.setPrice(cartItem.getBook().getPrice() | ||
.multiply(new BigDecimal(cartItem.getQuantity()))); | ||
return orderItem; | ||
}) | ||
.collect(Collectors.toSet()); | ||
} | ||
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@Override | ||
public OrderItemResponseDto findOrderItemById(Long orderId, Long itemId) { | ||
Order order = repository.findById(orderId) | ||
.orElseThrow( | ||
() -> new EntityNotFoundException("cant find order by provided ID : " | ||
+ orderId)); | ||
return order.getOrderItems() | ||
.stream() | ||
.filter(o -> o.getId().equals(itemId)) | ||
.findFirst() | ||
.map(orderItemMapper::toDto) | ||
.orElseThrow( | ||
() -> new EntityNotFoundException("cant find item using provided ID : " | ||
+ itemId | ||
+ ", with order id" | ||
+ orderId)); | ||
} | ||
} |