lindaquinoa/lesson_23/Implemented MediaItemsController with complete CRUD operations

lesson_23/api/java/api_app/src/main/java/com/codedifferently/lesson23/web/MediaItemsController.java

@@ -4,16 +4,24 @@
 import com.codedifferently.lesson23.library.Library;
 import com.codedifferently.lesson23.library.MediaItem;
 import com.codedifferently.lesson23.library.search.SearchCriteria;
+import jakarta.validation.Valid;
 import java.io.IOException;
 import java.util.List;
 import java.util.Set;
+import java.util.UUID;
 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.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 
 @RestController
 @CrossOrigin
+@RequestMapping
 public class MediaItemsController {
 
   private final Library library;
@@ -25,10 +33,43 @@ public MediaItemsController(Library library) throws IOException {
   }
 
   @GetMapping("/items")
-  public ResponseEntity<GetMediaItemsResponse> getItems() {
+  public GetMediaItemsResponse getItems() {
     Set<MediaItem> items = library.search(SearchCriteria.builder().build());
     List<MediaItemResponse> responseItems = items.stream().map(MediaItemResponse::from).toList();
-    var response = GetMediaItemsResponse.builder().items(responseItems).build();
-    return ResponseEntity.ok(response);
+    return GetMediaItemsResponse.builder().items(responseItems).build();
+  }
+
+  @GetMapping("/items/{id}")
+  public ResponseEntity<MediaItemResponse> getItem(@PathVariable String id) {
+    UUID itemId = UUID.fromString(id);
+    Set<MediaItem> items = library.search(SearchCriteria.builder().id(itemId.toString()).build());
+
+    if (items.isEmpty()) {
+      return ResponseEntity.notFound().build();
+    }
+
+    MediaItem item = items.iterator().next();
+    return ResponseEntity.ok(MediaItemResponse.from(item));
+  }
+
+  @PostMapping("/items")
+  public CreateMediaItemResponse createItem(@Valid @RequestBody CreateMediaItemRequest request) {
+    MediaItem newItem = MediaItemRequest.asMediaItem(request.getItem());
+    library.addMediaItem(newItem, librarian);
+
+    MediaItemResponse itemResponse = MediaItemResponse.from(newItem);
+    return CreateMediaItemResponse.builder().item(itemResponse).build();
+  }
+
+  @DeleteMapping("/items/{id}")
+  public ResponseEntity<Void> deleteItem(@PathVariable String id) {
+    UUID itemId = UUID.fromString(id);
+
+    if (!library.hasMediaItem(itemId)) {
+      return ResponseEntity.notFound().build();
+    }
+
+    library.removeMediaItem(itemId, librarian);
+    return ResponseEntity.noContent().build();
   }
 }