feat:add MediaItemsController.java with all features passing For Lesson_26.

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

@@ -0,0 +1,18 @@
+package com.codedifferently.lesson26.web;
+
+import jakarta.validation.Valid;
+import jakarta.validation.constraints.NotNull;
+
+public class MediaItemWrapper {
+
+  @NotNull(message = "Item is required") @Valid
+  private MediaItemRequest item;
+
+  public MediaItemRequest getItem() {
+    return item;
+  }
+
+  public void setItem(MediaItemRequest item) {
+    this.item = item;
+  }
+}

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

@@ -4,12 +4,20 @@
 import com.codedifferently.lesson26.library.Library;
 import com.codedifferently.lesson26.library.MediaItem;
 import com.codedifferently.lesson26.library.search.SearchCriteria;
+import jakarta.validation.Valid;
 import java.io.IOException;
 import java.util.List;
+import java.util.Map;
+import java.util.Optional;
 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;
 
 @RestController
@@ -31,4 +39,52 @@ public ResponseEntity<GetMediaItemsResponse> getItems() {
     var response = GetMediaItemsResponse.builder().items(responseItems).build();
     return ResponseEntity.ok(response);
   }
+
+  @PostMapping("/items")
+  public ResponseEntity<Map<String, MediaItemResponse>> createItem(
+      @Valid @RequestBody MediaItemWrapper wrapper) {
+
+    MediaItemRequest request = wrapper.getItem();
+    if (request == null) {
+      throw new IllegalArgumentException("Item must be provided in request body");
+    }
+
+    MediaItem newItem = MediaItemRequest.asMediaItem(request);
+    library.addMediaItem(newItem, librarian);
+    return ResponseEntity.ok(Map.of("item", MediaItemResponse.from(newItem)));
+  }
+
+  @GetMapping("/items/{id}")
+  public ResponseEntity<MediaItemResponse> getItemById(@PathVariable("id") UUID id) {
+
+    Set<MediaItem> allItems = library.search(SearchCriteria.builder().build());
+
+    Optional<MediaItem> itemOpt =
+        allItems.stream().filter(item -> item.getId().equals(id)).findFirst();
+
+    if (itemOpt.isEmpty()) {
+      return ResponseEntity.notFound().build();
+    }
+
+    MediaItemResponse response = MediaItemResponse.from(itemOpt.get());
+    return ResponseEntity.ok(response);
+  }
+
+  @DeleteMapping("/items/{id}")
+  public ResponseEntity<Void> deleteItemById(@PathVariable("id") UUID id) {
+    Optional<MediaItem> itemOpt =
+        library.search(SearchCriteria.builder().build()).stream()
+            .filter(item -> item.getId().equals(id))
+            .findFirst();
+
+    if (itemOpt.isEmpty()) {
+      return ResponseEntity.notFound().build();
+    }
+
+    MediaItem item = itemOpt.get();
+    Librarian librarian = new Librarian("system", "system@example.com");
+    library.removeMediaItem(item, librarian);
+
+    return ResponseEntity.noContent().build();
+  }
 }

lesson_26/davisd

@@ -0,0 +1 @@
+im going to have actual code submitted by end of day sir.