add find by user method in json scheduled node repo

app/ScheduledNode/JsonScheduledNodeRepository.php

@@ -2,12 +2,19 @@
 
 namespace App\ScheduledNode;
 
+use App\Node\NodeRepository;
+use App\Plan\PlanRepository;
+use App\User\User;
+use DateTimeImmutable;
+
 class JsonScheduledNodeRepository implements ScheduledNodeRepository
 {
     private string $filePath;
 
-    public function __construct()
-    {
+    public function __construct(
+        private PlanRepository $planRepo,
+        private NodeRepository $nodeRepo,
+    ) {
         $this->filePath = __DIR__ . '/../../data/scheduledNodes.json';
     }
 
@@ -66,4 +73,34 @@ class JsonScheduledNodeRepository implements ScheduledNodeRepository
 
         return $maxId + 1;
     }
+
+    public function findByUser(User $user): array
+    {
+        $allScheduledNodes = $this->readScheduledNodes();
+        $planIds = array_map(
+            function ($plan) {
+                return $plan->getId();
+            },
+            $this->planRepo->findByUser($user)
+        );
+        $usersScheduledNodes = array_filter(
+            $allScheduledNodes,
+            function ($node) use ($planIds) {
+                return in_array($node['planId'], $planIds);
+            }
+        );
+
+        return array_map(
+            function ($data) {
+                return new ScheduledNode(
+                    id: $data['id'],
+                    date: new DateTimeImmutable($data['date']),
+                    plan: $this->planRepo->find($data['planId']),
+                    node: $this->nodeRepo->find($data['nodeId']),
+                    completed: $data['completed']
+                );
+            },
+            $usersScheduledNodes
+        );
+    }
 }