feat: added HTTP methods for Chelsea

Author: Cogbonnia

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

@@ -1,16 +1,18 @@
 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 java.io.IOException;
 import java.util.List;
 import java.util.Set;
+
 import org.springframework.web.bind.annotation.CrossOrigin;
 import org.springframework.web.bind.annotation.GetMapping;
 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.search.SearchCriteria;
+
 @RestController
 @CrossOrigin
 public class MediaItemsController {
@@ -29,4 +31,29 @@ public GetMediaItemsResponse getItems() {
     var response = GetMediaItemsResponse.builder().items(responseItems).build();
     return response;
   }
+  @PostMapping("/items")
+  public CreateMediaItemResponse createItem(@RequestBody CreateMediaItemRequest request) {
+    if (request == null || request.getItem() == null) {
+      throw new IllegalArgumentException("Invalid request body");
+    }
+  MediaItem newItem = request.toMediaItem();
+  library.addItem(newItem);
+  return new CreateMediaItemResponse(newItem);
+  }
+  @GetMapping("/items/{id}")
+  public MediaItemResponse getItemById(@PathVariable String id) {
+    MediaItem item = library.getItemById(id);
+    if (item == null) {
+      throw new MediaItemNotFoundException("Media item not found");
+    }
+    return MediaItemResponse.from(item);
+  }
+  @DeleteMapping("/items/{id}")
+  public ResponseEntity<Void> deleteItem(@PathVariable String id) {
+    boolean deleted = library.deleteItem(id);
+    if (!deleted) {
+      throw new MediaItemNotFoundException("Item not found");
+    }
+    return ResponseEntity.noContent().build();
+  }
 }