<?php
    session_start();
    require '../../../assets/utils/db_auth.php';

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

    try {

        $to = trim($data['test_email'] ?? '');

        if (!filter_var($to, FILTER_VALIDATE_EMAIL)) {
            $answer['message'] = 'Invalid recipient email address.';
            http_response_code(422);
            exit(json_encode($answer));
        }

        // Fetch from_name / channel_name for the sender display
        $sth = $pdo1->prepare("
            SELECT from_name FROM company_smtp
            WHERE company_id = :company_id LIMIT 1
        ");
        $sth->execute([':company_id' => $company_id]);
        db_check($sth, $answer);
        $row = $sth->fetch(PDO::FETCH_ASSOC);

        if (!$row) {
            $answer['message'] = 'No SMTP configuration found. Please save your settings first.';
            http_response_code(422);
            exit(json_encode($answer));
        }

        $channel_name = $row['from_name'] ?: 'WMS System';

        // Use existing mailer — it reads company_smtp via pdo1 automatically
        require_once $include_url . 'assets/utils/module/mailer.php';

        $mailer = new mailer(['pdo1' => $pdo1]);
        $mailer->send_email([
            'company_id'   => $company_id,
            'smtp'         => [],             // empty = mailer reads from company_smtp
            'to'           => $to,
            'subject'      => 'SMTP Test — WMS',
            'message'      => "This is a test email from your WMS SMTP configuration.\n\nIf you received this, your SMTP settings are working correctly.",
            'channel_name' => $channel_name,
            'key'          => $pinkey,
        ]);

        $answer['success'] = 1;
        $answer['message'] = 'Test email sent to ' . htmlspecialchars($to) . '.';

    } catch (Exception $e) {
        $answer['message'] = 'Failed to send test email: ' . $e->getMessage();
        http_response_code(500);
    }

    exit(json_encode($answer));
?>