<?php

declare(strict_types=1);

namespace App\Controllers;

use App\Repositories\ProductRepository;

final class CartController
{
    public function sync(): void
    {
        header('Content-Type: application/json; charset=utf-8');

        $payload = json_decode((string) file_get_contents('php://input'), true);
        $items = is_array($payload) && isset($payload['items']) && is_array($payload['items'])
            ? $payload['items']
            : [];

        if ($items === []) {
            echo json_encode(['items' => []], JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
            return;
        }

        try {
            $snapshots = (new ProductRepository())->cartSnapshots($items);
            echo json_encode(['items' => $snapshots], JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
        } catch (\Throwable) {
            http_response_code(500);
            echo json_encode([
                'items' => [],
                'error' => 'cart_sync_failed',
            ], JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
        }
    }
}