#!/usr/bin/env php
<?php

// Define the application root directory
define('ROOT_DIR', dirname(__DIR__));

// Require the Composer autoloader
require ROOT_DIR . '/vendor/autoload.php';

// Load configuration files
require ROOT_DIR . '/config/app.php';
require ROOT_DIR . '/config/mail.php';

use App\Helpers\DkimHelper;

// Output header
echo "═════════════════════════════════════\n";
echo "       DKIM Key Generator Tool        \n";
echo "═════════════════════════════════════\n\n";

try {
    // Create DKIM helper
    $dkimHelper = new DkimHelper();

    // Generate keys (2048 bits is recommended)
    echo "Generating DKIM keys (2048 bits)...\n";
    $result = $dkimHelper->generateKeys(ROOT_DIR . '/config/mail', 2048);

    echo "DKIM keys generated successfully!\n\n";
    echo "Private key saved to: {$result['private_key_path']}\n";
    echo "Public key saved to: {$result['public_key_path']}\n\n";

    echo "═════════════════════════════════════\n";
    echo "DNS TXT Record for DKIM configuration:\n";
    echo "═════════════════════════════════════\n\n";

    $domain = MAIL_DKIM_DOMAIN;
    $selector = MAIL_DKIM_SELECTOR;

    echo "Domain: $domain\n";
    echo "Selector: $selector\n\n";

    echo "Create this DNS TXT record:\n";
    echo "$selector._domainkey.$domain. IN TXT (\n";

    // Format the TXT record for DNS with proper wrapping
    $txtRecord = $result['dns_txt_record'];
    $wrappedTxt = wordwrap($txtRecord, 80, "\n  ");
    echo "  \"$wrappedTxt\"\n  )\n\n";

    echo "This record should be added to your domain's DNS configuration.\n\n";
    echo "═════════════════════════════════════\n";

    echo "Done!\n";

} catch (Exception $e) {
    echo "Error: " . $e->getMessage() . "\n";
    exit(1);
}