шаг 3 завершен

app/Repositories/PromocodeRepository.php

@@ -0,0 +1,25 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Repositories;
+
+final class PromocodeRepository extends BaseRepository
+{
+    /**
+     * @return array<int, array<string, mixed>>
+     */
+    public function priceTiers(): array
+    {
+        $statement = $this->pdo()->query(
+            'SELECT code, title, discount_type, discount_value, min_order_amount, price_tier_label, payment_note
+             FROM promocodes
+             WHERE is_active = 1
+               AND show_in_price_tiers = 1
+               AND discount_type = "percent"
+             ORDER BY min_order_amount, discount_value'
+        );
+
+        return $statement->fetchAll();
+    }
+}