feat:implemented get/post/delete fto lesson_26

Author: txtran224

lesson_26/api/java/api_app/src/main/java/com/codedifferently/lesson26/web/MediaItemsController.java

@@ -1,22 +1,28 @@
 package com.codedifferently.lesson26.web;
 
-import com.codedifferently.lesson26.library.Librarian;
-import com.codedifferently.lesson26.library.Library;
-import com.codedifferently.lesson26.library.MediaItem;
-import com.codedifferently.lesson26.library.search.SearchCriteria;
-import io.swagger.v3.oas.annotations.parameters.RequestBody;
 import java.io.IOException;
 import java.util.List;
-import java.util.Map;
 import java.util.Set;
+import java.util.UUID;
+
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.CrossOrigin;
+import org.springframework.web.bind.annotation.DeleteMapping;
 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 com.codedifferently.lesson26.library.Librarian;
+import com.codedifferently.lesson26.library.Library;
+import com.codedifferently.lesson26.library.MediaItem;
+import com.codedifferently.lesson26.library.exceptions.MediaItemCheckedOutException;
+import com.codedifferently.lesson26.library.search.SearchCriteria;
+
+import io.swagger.v3.oas.annotations.parameters.RequestBody;
+import jakarta.validation.Valid;
+
 @RestController
 @CrossOrigin
 public class MediaItemsController {
@@ -36,10 +42,10 @@ public GetMediaItemsResponse getItems() {
     return response;
   }
 
-  // Get item
+
   @GetMapping("/items/{id}")
-  public ResponseEntity<MediaItemResponse> getItem(@PathVariable String id) {
-    SearchCriteria criteria = SearchCriteria.builder().id(id).build();
+  public ResponseEntity<MediaItemResponse> getItem(@PathVariable UUID id) {
+    SearchCriteria criteria = SearchCriteria.builder().id(id.toString()).build();
     Set<MediaItem> items = library.search(criteria);
     if (items.isEmpty()) {
       return ResponseEntity.status(HttpStatus.NOT_FOUND).build();
@@ -50,22 +56,34 @@ public ResponseEntity<MediaItemResponse> getItem(@PathVariable String id) {
     }
   }
 
-  // post item
   @PostMapping("/items")
-  public ResponseEntity<?> addsItem(@RequestBody CreateMediaItemRequest request) {
-    if (request == null || request.getItem() == null) {
-      return ResponseEntity.status(HttpStatus.BAD_REQUEST).body("Missing item in the body");
+
+  public CreateMediaItemResponse addsItem(@Valid @RequestBody CreateMediaItemRequest request) {
+    MediaItemRequest itemRequest = request.getItem();
+    MediaItem item = MediaItemRequest.asMediaItem(itemRequest);
+    library.addMediaItem(item, librarian);
+
+    CreateMediaItemResponse response =
+        CreateMediaItemResponse.builder().item(getItem(item.getId()).getBody()).build();
+
+    return response;
+  }
+  @DeleteMapping("/items/{id}")
+  public ResponseEntity<Void> deleteItem(@PathVariable String id) {
+    SearchCriteria criteria = SearchCriteria.builder().id(id).build();
+    Set<MediaItem> items = library.search(criteria);
+
+    if (items.isEmpty()) {
+      return ResponseEntity.status(HttpStatus.NOT_FOUND).build();
     }
-    try {
-      MediaItem newItem = MediaItemRequest.asMediaItem(request.getItem());
 
-      library.addMediaItem(newItem, librarian);
+    MediaItem item = items.iterator().next();
 
-      return ResponseEntity.ok(Map.of("item", MediaItemResponse.from(newItem)));
-    } catch (IllegalArgumentException e) {
-      return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(e.getMessage());
+    try {
+      library.removeMediaItem(item, librarian);
+      return ResponseEntity.noContent().build();
+    } catch (MediaItemCheckedOutException e) {
+      return ResponseEntity.status(HttpStatus.CONFLICT).body(null);
     }
   }
-}
-
-  // Delete
+}