ADD SCHOOL YEAR MANAGEMENT

app/Services/SchoolYearWriteGuard.php

@@ -0,0 +1,25 @@
+<?php
+
+namespace App\Services;
+
+use App\Support\SchoolYear\SchoolYearContext;
+use RuntimeException;
+
+final class SchoolYearWriteGuard
+{
+    public function assertWritable(
+        SchoolYearContext $context,
+        bool $allowDraftForAdmin = false,
+        bool $isAdmin = false
+    ): void {
+        if ($context->status() === 'active') {
+            return;
+        }
+
+        if ($context->status() === 'draft' && $allowDraftForAdmin && $isAdmin) {
+            return;
+        }
+
+        throw new RuntimeException('The selected school year is read-only.');
+    }
+}