checkout api

src/main/java/edu/prlab/ecsimple/config/DefaultDataBean.java

@@ -6,12 +6,14 @@ import edu.prlab.ecsimple.service.AccountServiceImpl;
 import edu.prlab.ecsimple.service.OrderServiceImpl;
 import edu.prlab.ecsimple.service.ProductServiceImpl;
 import lombok.RequiredArgsConstructor;
+import org.hibernate.id.GUIDGenerator;
 import org.springframework.boot.ApplicationArguments;
 import org.springframework.boot.ApplicationRunner;
 import org.springframework.stereotype.Component;
 
 import java.util.List;
 import java.util.Optional;
+import java.util.UUID;
 
 @RequiredArgsConstructor
 @Component
@@ -38,6 +40,7 @@ public class DefaultDataBean implements ApplicationRunner {
                         .build())
                 .orElseThrow(() -> new EntityNotFoundException("no order"));
         Item b = orderService.create(Item.builder()
+                        .sku(UUID.randomUUID().toString())
                         .quantity(1)
                         .build())
                 .orElseThrow(() -> new EntityNotFoundException("no Item"));

src/main/java/edu/prlab/ecsimple/controller/ProductController.java

 package edu.prlab.ecsimple.controller;
 
 import edu.prlab.ecsimple.common.mapper.MapperUtil;
+import edu.prlab.ecsimple.model.OrderModel;
 import edu.prlab.ecsimple.model.ResponseModel;
+import edu.prlab.ecsimple.service.OrderServiceImpl;
 import edu.prlab.ecsimple.service.ProductService;
 import edu.prlab.ecsimple.service.ProductServiceImpl;
 import lombok.RequiredArgsConstructor;
 import org.springframework.http.ResponseEntity;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.PathVariable;
-import org.springframework.web.bind.annotation.PostMapping;
-import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.bind.annotation.*;
 
 @RestController
 @RequiredArgsConstructor
 public class ProductController {
 
     private final ProductServiceImpl productService;
+    private final OrderServiceImpl orderService;
+
 
     @GetMapping("/product/{sku}")
     public ResponseEntity<ResponseModel> getProduct(@PathVariable Integer sku) {
@@ -33,13 +34,22 @@ public class ProductController {
     public ResponseEntity<ResponseModel> getProducts() {
         return ResponseEntity.ok()
                 .body(ResponseModel.builder()
-                .status("status")
-                .data(MapperUtil.objectToJsonNode(productService.getProducts()))
-                .build());
+                        .status("status")
+                        .data(MapperUtil.objectToJsonNode(productService.getProducts()))
+                        .build());
     }
 
-//    @PostMapping("/checkout")
-//    public ResponseEntity<ResponseModel> checkout(){
-//        return
-//    }
+    @PostMapping("/checkout")
+    public ResponseEntity<ResponseModel> checkout(@RequestBody OrderModel orderModel) {
+        return orderService.checkout(orderModel)
+                .map(MapperUtil::objectToJsonNode)
+                .map(it -> ResponseEntity.ok()
+                        .body(ResponseModel.builder()
+                                .status("status")
+                                .data(it)
+                                .build()))
+                .orElseGet(() -> ResponseEntity.badRequest().body(ResponseModel.builder()
+                        .status("status")
+                        .build()));
+    }
 }
\ No newline at end of file

src/main/java/edu/prlab/ecsimple/domain/Item.java

@@ -15,8 +15,8 @@ import javax.persistence.*;
 public class Item {
 
     @Id
-    @GeneratedValue(strategy = GenerationType.AUTO)
-    private Integer sku;
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private String sku;
 
     @Column
     private Integer quantity;

src/main/java/edu/prlab/ecsimple/model/OrderModel.java

+package edu.prlab.ecsimple.model;
+
+import edu.prlab.ecsimple.domain.Item;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import javax.persistence.FetchType;
+import javax.persistence.ManyToMany;
+import java.util.ArrayList;
+import java.util.Collection;
+
+@Data
+@Builder
+@NoArgsConstructor
+@AllArgsConstructor
+public class OrderModel {
+    @Builder.Default
+    private Collection<Item> lineItems = new ArrayList<>();
+    private String email;
+    private String creditCard;
+}

src/main/java/edu/prlab/ecsimple/repo/ItemRepo.java

@@ -5,5 +5,5 @@ import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.stereotype.Repository;
 
 @Repository
-public interface ItemRepo extends JpaRepository<Item, Integer> {
+public interface ItemRepo extends JpaRepository<Item, String> {
 }

src/main/java/edu/prlab/ecsimple/service/OrderService.java

@@ -2,11 +2,14 @@ package edu.prlab.ecsimple.service;
 
 import edu.prlab.ecsimple.domain.Item;
 import edu.prlab.ecsimple.domain.TheOrder;
+import edu.prlab.ecsimple.model.OrderModel;
 
 import java.util.Optional;
 
 public interface OrderService {
     Optional<TheOrder> create(TheOrder theOrder);
     Optional<Item> create(Item item);
-    void addItemToOrder(Integer orderId, Integer itemId);
+    void addItemToOrder(Integer orderId, String sku);
+
+    Optional<TheOrder> checkout(OrderModel orderModel);
 }

src/main/java/edu/prlab/ecsimple/service/OrderServiceImpl.java

@@ -3,13 +3,19 @@ package edu.prlab.ecsimple.service;
 import edu.prlab.ecsimple.common.exception.EntityNotFoundException;
 import edu.prlab.ecsimple.domain.Item;
 import edu.prlab.ecsimple.domain.TheOrder;
+import edu.prlab.ecsimple.model.OrderModel;
+import edu.prlab.ecsimple.model.ResponseModel;
 import edu.prlab.ecsimple.repo.ItemRepo;
 import edu.prlab.ecsimple.repo.OrderRepo;
 import lombok.RequiredArgsConstructor;
+import org.springframework.http.ResponseEntity;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
+import java.time.LocalDateTime;
+import java.util.List;
 import java.util.Optional;
+import java.util.stream.Collectors;
 
 @Service
 @RequiredArgsConstructor
@@ -32,13 +38,29 @@ public class OrderServiceImpl implements OrderService {
     }
 
     @Override
-    public void addItemToOrder(Integer orderId, Integer itemId) {
+    public void addItemToOrder(Integer orderId, String sku) {
         orderRepo.findById(orderId)
-                .map(order -> itemRepo.findById(itemId)
+                .map(order -> itemRepo.findById(sku)
                         .map(item -> order.getItems().add(item))
                         .orElseThrow(() -> new EntityNotFoundException("No found this order")))
                 .orElseThrow(() -> new EntityNotFoundException("No found this order"));
     }
 
 
+    @Override
+    public Optional<TheOrder> checkout(OrderModel orderModel) {
+        return Optional.of(orderModel)
+                .map(it -> orderRepo.save(TheOrder.builder()
+                        .email(orderModel.getEmail())
+                        .state("created")
+                        .checkoutDate(LocalDateTime.now().toString())
+                        .build()))
+                .map(order -> {
+                    orderModel.getLineItems().stream()
+                            .map(it -> create(it)
+                                    .orElseThrow(() -> new RuntimeException("save item error")))
+                            .forEach(it -> addItemToOrder(order.getIid(), it.getSku()));
+                    return order;
+                });
+    }
 }