feat:lesson_26 changes to mediaitemscontroller

Author: txtran224

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

@@ -4,11 +4,17 @@
 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 org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.CrossOrigin;
 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;
 
 @RestController
@@ -29,4 +35,37 @@ public GetMediaItemsResponse getItems() {
     var response = GetMediaItemsResponse.builder().items(responseItems).build();
     return response;
   }
+
+  // Get item
+  @GetMapping("/items/{id}")
+  public ResponseEntity<MediaItemResponse> getItem(@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();
+    }
+    {
+      MediaItem item = items.iterator().next();
+      return ResponseEntity.ok(MediaItemResponse.from(item));
+    }
+  }
+
+  // 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");
+    }
+    try {
+      MediaItem newItem = MediaItemRequest.asMediaItem(request.getItem());
+
+      library.addMediaItem(newItem, librarian);
+
+      return ResponseEntity.ok(Map.of("item", MediaItemResponse.from(newItem)));
+    } catch (IllegalArgumentException e) {
+      return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(e.getMessage());
+    }
+  }
 }
+
+  // Delete