ADD functionality to retrieve and display clips by ID

src/main/java/com/ddf/vodsystem/controllers/ClipController.java

@@ -9,6 +9,7 @@ import org.springframework.security.core.annotation.AuthenticationPrincipal;
 import org.springframework.security.oauth2.core.user.OAuth2User;
 import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.RequestMapping;
 
 import java.util.List;
@@ -33,4 +34,20 @@ public class ClipController {
                 new APIResponse<>("success", "Clips retrieved successfully", clips)
         );
     }
+
+    @GetMapping("/{id}")
+    public ResponseEntity<APIResponse<Clip>> getClipById(@AuthenticationPrincipal OAuth2User principal, @PathVariable Long id) {
+        if (principal == null) {
+            throw new NotAuthenticated("User is not authenticated");
+        }
+
+        Clip clip = clipService.getClipById(id);
+        if (clip == null) {
+            return ResponseEntity.notFound().build();
+        }
+
+        return ResponseEntity.ok(
+                new APIResponse<>("success", "Clip retrieved successfully", clip)
+        );
+    }
 }