reconstruction of the project

app/Services/Administrator/AdminPrintRecipientService.php

@@ -0,0 +1,116 @@
+<?php
+
+namespace App\Services\Administrator;
+
+use App\Models\AdminNotificationSubject;
+use Illuminate\Support\Facades\DB;
+
+class AdminPrintRecipientService
+{
+    public function __construct(
+        protected AdminNotificationUserService $userService
+    ) {
+    }
+
+    public function data(): array
+    {
+        $admins = $this->userService->fetchAdminNotificationUsers();
+        $tableReady = DB::getSchemaBuilder()->hasTable('admin_notification_subjects');
+        $assigned = [];
+
+        if ($tableReady && !empty($admins)) {
+            $adminIds = array_map('intval', array_column($admins, 'id'));
+
+            $rows = AdminNotificationSubject::query()
+                ->select('admin_id')
+                ->where('subject', 'print_requests')
+                ->whereIn('admin_id', $adminIds)
+                ->get();
+
+            foreach ($rows as $row) {
+                $adminId = (int) ($row->admin_id ?? 0);
+                if ($adminId > 0) {
+                    $assigned[$adminId] = true;
+                }
+            }
+        }
+
+        return [
+            'admins' => $admins,
+            'assigned' => $assigned,
+            'tableReady' => $tableReady,
+        ];
+    }
+
+    public function save(array $posted): array
+    {
+        if (!DB::getSchemaBuilder()->hasTable('admin_notification_subjects')) {
+            return [
+                'success' => false,
+                'message' => 'Notification subject storage is missing. Run migrations first.',
+                'status' => 422,
+            ];
+        }
+
+        $admins = $this->userService->fetchAdminNotificationUsers();
+        $adminIds = array_map('intval', array_column($admins, 'id'));
+
+        if (empty($adminIds)) {
+            return [
+                'success' => false,
+                'message' => 'No admins found to update.',
+                'status' => 404,
+            ];
+        }
+
+        $selected = [];
+        foreach ($posted as $key => $value) {
+            $adminId = (int) $key;
+            if ($adminId > 0 && in_array($adminId, $adminIds, true)) {
+                $selected[] = $adminId;
+            }
+        }
+
+        $selected = array_values(array_unique($selected));
+
+        $current = AdminNotificationSubject::query()
+            ->where('subject', 'print_requests')
+            ->whereIn('admin_id', $adminIds)
+            ->pluck('admin_id')
+            ->map(fn($id) => (int) $id)
+            ->unique()
+            ->values()
+            ->all();
+
+        $toDelete = array_values(array_diff($current, $selected));
+        $toInsert = array_values(array_diff($selected, $current));
+
+        if (!empty($toDelete)) {
+            AdminNotificationSubject::query()
+                ->where('subject', 'print_requests')
+                ->whereIn('admin_id', $toDelete)
+                ->delete();
+        }
+
+        if (!empty($toInsert)) {
+            $batch = [];
+            foreach ($toInsert as $adminId) {
+                $batch[] = [
+                    'admin_id' => $adminId,
+                    'subject' => 'print_requests',
+                    'created_at' => now(),
+                    'updated_at' => now(),
+                ];
+            }
+            AdminNotificationSubject::insert($batch);
+        }
+
+        $changes = count($toDelete) + count($toInsert);
+
+        return [
+            'success' => true,
+            'message' => $changes > 0 ? 'Print notification recipients updated.' : 'No changes were made.',
+            'status' => 200,
+        ];
+    }
+}