Merge branch 'feature/67-create-shoppinglist-service-and-controller' into 'main'

Feature/67 create shoppinglist service and controller

See merge request idatt2106-v23-03/backend!41

src/main/java/ntnu/idatt2016/v233/SmartMat/controller/ShoppingListController.java

+package ntnu.idatt2016.v233.SmartMat.controller;
+
+import java.util.Optional;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import io.swagger.v3.oas.annotations.parameters.RequestBody;
+import lombok.AllArgsConstructor;
+import ntnu.idatt2016.v233.SmartMat.dto.request.ShoppingListRequest;
+import ntnu.idatt2016.v233.SmartMat.entity.ShoppingList;
+import ntnu.idatt2016.v233.SmartMat.service.ShoppingListService;
+
+/**
+ * Controller for the shopping list
+ * 
+ * @author Stian Lyng
+ * @version 1.0
+ */
+@AllArgsConstructor
+@RestController
+@RequestMapping("/api/shoppinglist")
+public class ShoppingListController {
+
+    @Autowired
+    ShoppingListService shoppingListService;
+    
+    /**
+     * Creates a shopping list
+     *
+     * @param request the request containing the group ID
+     * @return the created shopping list, or an error if the group ID is invalid
+     */
+    @PostMapping("/add")
+    public ResponseEntity<ShoppingList> createShoppingList(@RequestBody ShoppingListRequest request) {
+        return ResponseEntity.status(HttpStatus.CREATED).body(shoppingListService.createShoppingList(request));
+    }
+
+    /**
+     * Gets a shopping list by its ID
+     *
+     * @param request the request containing the shopping list ID
+     * @return the shopping list, or an error if the ID is invalid
+     */
+    @GetMapping("/{id}")
+    public ResponseEntity<ShoppingList> getShoppingListById(@RequestBody ShoppingListRequest request) {
+        Optional<ShoppingList> shoppingList = shoppingListService.getShoppingListById(request.getGroupID());
+        return shoppingList.map(list -> ResponseEntity.status(HttpStatus.OK).body(list))
+                           .orElseGet(() -> ResponseEntity.status(HttpStatus.NOT_FOUND).build());
+    }
+    
+    /**
+     * Gets a shopping list by its group ID
+     * 
+     * @param request the request containing the group ID
+     * @return the shopping list, or an error if the ID is invalid
+     */
+    @GetMapping("/group/{id}")
+    public ResponseEntity<ShoppingList> getAllShoppingListsByGroupId(@RequestBody ShoppingListRequest request) {
+        Optional<ShoppingList> shoppingList = shoppingListService.getShoppingListByGroupId(request.getGroupID());
+        return shoppingList.map(list -> ResponseEntity.status(HttpStatus.OK).body(list))
+                           .orElseGet(() -> ResponseEntity.status(HttpStatus.NOT_FOUND).build());
+    }
+}

src/main/java/ntnu/idatt2016/v233/SmartMat/dto/request/ShoppingListRequest.java

+package ntnu.idatt2016.v233.SmartMat.dto.request;
+
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+
+/**
+ * This class represents a request for a shopping list.
+ */
+@Data
+@Builder
+@AllArgsConstructor
+public class ShoppingListRequest {
+
+    /**
+     * The unique identifier of the shopping list.
+     */
+    private long id;
+
+    /**
+    * The unique identifier of the group for which the shopping list is requested.
+    */
+    private long groupID; 
+}

src/main/java/ntnu/idatt2016/v233/SmartMat/service/ShoppingListService.java

@@ -3,6 +3,10 @@ package ntnu.idatt2016.v233.SmartMat.service;
 import java.util.List;
 import java.util.Optional;
 
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import ntnu.idatt2016.v233.SmartMat.dto.request.ShoppingListRequest;
 import ntnu.idatt2016.v233.SmartMat.entity.ShoppingList;
 import ntnu.idatt2016.v233.SmartMat.repository.ShoppingListRepository;
 
@@ -12,24 +16,20 @@ import ntnu.idatt2016.v233.SmartMat.repository.ShoppingListRepository;
  * @author Stian Lyng
  * @version 1.1
  */
+@Service
 public class ShoppingListService {
     
+    @Autowired
     ShoppingListRepository shoppingListRepository;
-    /**
-     * Creates a new ShoppingListService
-     * 
-     * @param shoppingListRepository The repository to use
-     */
-    public ShoppingListService(ShoppingListRepository shoppingListRepository) {
-        this.shoppingListRepository = shoppingListRepository;
-    }
     
     /**
-     * Saves a shopping list to the database
+     * Create and save a shopping list to the database
      * @param shoppingList the shopping list to save
      * @return the saved shopping list
      */
-    public ShoppingList saveShoppingList(ShoppingList shoppingList) {
+    public ShoppingList createShoppingList(ShoppingListRequest shoppingListRequest) {
+        ShoppingList shoppingList = new ShoppingList();
+        shoppingList.setGroupID(shoppingListRequest.getGroupID());
         return shoppingListRepository.save(shoppingList);
     }
 
@@ -49,7 +49,7 @@ public class ShoppingListService {
      * @param id the ID of the group
      * @return an optional containing the shopping list if it exists
      */
-    public Optional<ShoppingList> getShoppingListByGroupId(int id) {
+    public Optional<ShoppingList> getShoppingListByGroupId(long id) {
         return shoppingListRepository.getByGroupID(id);
     }
     
@@ -78,7 +78,9 @@ public class ShoppingListService {
      * @param id the ID of the shopping list
      */
     public void deleteShoppingListById(long id) {
-        shoppingListRepository.deleteById(id);
+        Optional<ShoppingList> shoppingList = shoppingListRepository.findById(id);
+        if (shoppingList.isPresent()) {
+            shoppingListRepository.deleteById(id);
+        }
     }
-
 }