Feat/lesson 23 hw toby evans

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

@@ -0,0 +1,34 @@
+package com.codedifferently.lesson23.web;
+import java.util.UUID;
+
+import com.codedifferently.lesson23.library.MediaItem;
+import com.codedifferently.lesson23.library.Book;
+import java.util.List;
+import lombok.Builder;
+import lombok.Value;
+import jakarta.validation.constraints.NotNull;
+
+@Value
+@Builder
+public class AddMediaItemRequest {
+  @NotNull
+  Item item;
+
+  @Value
+  @Builder
+  public static class Item {
+    String id;
+    String type;
+    String title;
+    String isbn;
+    List<String> authors;
+    Integer pages;
+
+    public MediaItem toDomain() {
+      int p = pages == null ? 0 : pages;
+      return new Book(UUID.fromString(id), title, isbn, authors, p);
+    }
+  }
+
+  public Item getItem() { return item; }
+}

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

@@ -1,27 +1,33 @@
 package com.codedifferently.lesson23.web;
-
+import java.util.Collections;
+import java.util.Map;
 import com.codedifferently.lesson23.library.Librarian;
+import java.util.UUID;
+
 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 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
 @CrossOrigin
 public class MediaItemsController {
 
   private final Library library;
-  private final Librarian librarian;
 
   public MediaItemsController(Library library) throws IOException {
     this.library = library;
-    this.librarian = library.getLibrarians().stream().findFirst().orElseThrow();
   }
 
   @GetMapping("/items")
@@ -31,4 +37,33 @@ public ResponseEntity<GetMediaItemsResponse> getItems() {
     var response = GetMediaItemsResponse.builder().items(responseItems).build();
     return ResponseEntity.ok(response);
   }
+
+  @GetMapping("/items/{id}")
+  public ResponseEntity<Map<String, MediaItemResponse>> getItem(@PathVariable String id) {
+    Set<MediaItem> items = library.search(SearchCriteria.builder().id(id).build());
+    if (items.isEmpty()) {
+      return ResponseEntity.notFound().build();
+    }
+    MediaItem item = items.iterator().next();
+    var body = Collections.singletonMap("item", MediaItemResponse.from(item));
+    return ResponseEntity.ok(body);
+  }
+
+  @PostMapping("/items")
+  public ResponseEntity<Map<String, MediaItemResponse>> addItem(@Valid @RequestBody AddMediaItemRequest request) {
+    MediaItem item = request.getItem().toDomain();
+    library.addMediaItem(item, new Librarian("System", "[email protected]"));
+    var body = Collections.singletonMap("item", MediaItemResponse.from(item));
+    return ResponseEntity.ok(body);
+  }
+
+  @DeleteMapping("/items/{id}")
+  public ResponseEntity<Void> deleteItem(@PathVariable String id) {
+    Set<MediaItem> items = library.search(SearchCriteria.builder().id(id).build());
+    if (items.isEmpty()) {
+      return ResponseEntity.notFound().build();
+    }
+    library.removeMediaItem(UUID.fromString(id), new Librarian("System", "[email protected]"));
+    return ResponseEntity.noContent().build();
+  }
 }