Feat: Yafiah Lesson-26 implemented API

Author: Yafiaha

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

@@ -1,16 +1,26 @@
 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 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.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;
+
+import jakarta.validation.Valid;
+
 @RestController
 @CrossOrigin
 public class MediaItemsController {
@@ -29,4 +39,52 @@ public GetMediaItemsResponse getItems() {
     var response = GetMediaItemsResponse.builder().items(responseItems).build();
     return response;
   }
+  
+  @GetMapping("/items/{id}")
+  public ResponseEntity<MediaItemResponse> getItemById(@PathVariable("id") UUID id) {
+   SearchCriteria searchCriteria = SearchCriteria.builder()
+        .id(id.toString())
+        .build();
+   Set<MediaItem> foundItem = library.search(searchCriteria); 
+
+    if (foundItem.isEmpty()) {
+       return ResponseEntity.notFound().build(); 
+    }
+
+    MediaItem item = foundItem.iterator().next();
+    MediaItemResponse response = MediaItemResponse.from(item); 
+
+    return ResponseEntity.ok(response);
+  }
+
+  @PostMapping("/items")
+  public CreateMediaItemResponse addItem(@Valid @RequestBody CreateMediaItemRequest request) {
+    MediaItemRequest itemRequest = request.getItem(); 
+    MediaItem item = MediaItemRequest.asMediaItem(itemRequest);
+   library.addMediaItem(item, librarian);
+  
+   CreateMediaItemResponse response = CreateMediaItemResponse.builder()
+        .item(getItemById(item.getId()).getBody()) 
+        .build();
+   return response; 
+  }
+
+ @DeleteMapping("/items/{id}")
+ public ResponseEntity<Void> deleteItem(@PathVariable("id") UUID id) {
+   SearchCriteria searchCriteria = SearchCriteria.builder()
+        .id(id.toString()) 
+        .build();
+
+    Set<MediaItem> foundItem = library.search(searchCriteria); 
+
+    if (foundItem.isEmpty()) {
+      return ResponseEntity.notFound().build(); 
+    }
+
+    MediaItem item = foundItem.iterator().next();
+    library.removeMediaItem(item, librarian); 
+
+    return ResponseEntity.noContent().build(); 
+  }
+ 
 }