<?php
session_start();
require_once '../../../assets/utils/db_auth.php';
require_once '../../../assets/utils/classes/ProductManager.php';
require_once '../../../assets/utils/classes_ac/ChartOfAccounts.php';

require_role($user_role, ['owner', 'admin']);

try {
    $id = (int)($data['id'] ?? 0);
    if ($id <= 0) {
        throw new Exception('Product is required.');
    }

    $sales_account_code = trim((string)($data['sales_account_code'] ?? '')) ?: null;
    $purchase_account_code = trim((string)($data['purchase_account_code'] ?? '')) ?: null;

    $coa = new ChartOfAccounts($pdo2, $company_id);
    foreach ([
        'Sales account' => $sales_account_code,
        'Purchase account' => $purchase_account_code,
    ] as $label => $account_code) {
        if ($account_code !== null && !$coa->isPostingAccount($account_code)) {
            throw new Exception($label . ' must be an active posting account.');
        }
    }

    dbTransaction($pdo2, function($pdo) use ($company_id, $id, $sales_account_code, $purchase_account_code, $logging) {
        $product = new ProductManager($pdo, $company_id);
        $product->updateAccountMapping($id, $sales_account_code, $purchase_account_code, $logging);
    });

    $answer['success'] = 1;

} catch (Exception $e) {
    $answer['success'] = 0;
    $answer['message'] = $e->getMessage();
    http_response_code(400);
}

exit(json_encode($answer));
?>