From 021a2a6f1587e2f15eae3968ed89c6a9d6bded5b Mon Sep 17 00:00:00 2001
From: Yisroel Baum <yisroel.d.baum@gmail.com>
Date: Sat, 21 Feb 2026 22:15:24 +0200
Subject: [PATCH] add parent node to node, fix type of null

---
 app/Node/CreateNodeDto.php              |  1 +
 app/Node/Node.php                       | 12 ++++++++++++
 app/Node/UseCases/CreateNode.php        |  9 +++++++++
 app/Node/UseCases/CreateNodeRequest.php |  1 +
 tests/Fakes/FakeNodeRepository.php      |  2 +-
 5 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/app/Node/CreateNodeDto.php b/app/Node/CreateNodeDto.php
index ca87f51..7b18143 100644
--- a/app/Node/CreateNodeDto.php
+++ b/app/Node/CreateNodeDto.php
@@ -9,5 +9,6 @@ class CreateNodeDto
     public function __construct(
         public Text $text,
         public string $title,
+        public ?Node $parentNode,
     ) {}
 }
diff --git a/app/Node/Node.php b/app/Node/Node.php
index c5cc050..a54ec19 100644
--- a/app/Node/Node.php
+++ b/app/Node/Node.php
@@ -7,10 +7,17 @@ use App\Text\Text;
 class Node
 {
     public function __construct(
+        private int $id,
         private string $title,
         private Text $text,
+        private ?Node $parentNode,
     ) {}
 
+    public function getId(): int
+    {
+        return $this->id;
+    }
+
     public function getTitle(): string
     {
         return $this->title;
@@ -20,4 +27,9 @@ class Node
     {
         return $this->text;
     }
+
+    public function getParentNode(): ?Node
+    {
+        return $this->parentNode;
+    }
 }
diff --git a/app/Node/UseCases/CreateNode.php b/app/Node/UseCases/CreateNode.php
index f67b2de..ad2a7e6 100644
--- a/app/Node/UseCases/CreateNode.php
+++ b/app/Node/UseCases/CreateNode.php
@@ -22,10 +22,19 @@ class CreateNode
         if ($text === null) {
             throw new DomainException("Text with id: $id doesnt exist");
         }
+        if ($request->parentNodeId === null) {
+            return $this->nodeRepo->create(new CreateNodeDto(
+                text: $text,
+                title: $request->title,
+                parentNode: null,
+            ));
+        }
+        $parentNode = $this->nodeRepo->find($request->parentNodeId);
 
         return $this->nodeRepo->create(new CreateNodeDto(
             text: $text,
             title: $request->title,
+            parentNode: $parentNode,
         ));
     }
 }
diff --git a/app/Node/UseCases/CreateNodeRequest.php b/app/Node/UseCases/CreateNodeRequest.php
index 4ea1d11..700a824 100644
--- a/app/Node/UseCases/CreateNodeRequest.php
+++ b/app/Node/UseCases/CreateNodeRequest.php
@@ -7,5 +7,6 @@ class CreateNodeRequest
     public function __construct(
         public int $textId,
         public string $title,
+        public ?int $parentNodeId,
     ) {}
 }
diff --git a/tests/Fakes/FakeNodeRepository.php b/tests/Fakes/FakeNodeRepository.php
index 994f4a5..fad7e4e 100644
--- a/tests/Fakes/FakeNodeRepository.php
+++ b/tests/Fakes/FakeNodeRepository.php
@@ -38,7 +38,7 @@ class FakeNodeRepository implements NodeRepository
             }
         );
         if ($node === null) {
-            return nullj;
+            return null;
         }
 
         return new Node(