<?php
declare(strict_types=1);

/**
 * Loads .env (simple KEY=VALUE parser, no external dependency) and exposes
 * typed config via env()/config().
 */
if (!function_exists('load_env')) {
    // This file is `require`d (not require_once) from more than one place
    // (bootstrap.php and Database.php), so it must always return a fresh
    // config array — but its function declarations must only run once.
    function load_env(string $path): void
    {
        if (!is_file($path)) {
            return;
        }

        foreach (file($path, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES) as $line) {
            $line = trim($line);
            if ($line === '' || str_starts_with($line, '#')) {
                continue;
            }
            [$key, $value] = array_pad(explode('=', $line, 2), 2, '');
            $key = trim($key);
            $value = trim($value);
            if ($key === '') {
                continue;
            }
            // Strip one layer of matching quotes, e.g. SITE_NAME="AzerothCore by Minkey"
            if (strlen($value) >= 2) {
                $first = $value[0];
                $last = $value[strlen($value) - 1];
                if (($first === '"' && $last === '"') || ($first === "'" && $last === "'")) {
                    $value = substr($value, 1, -1);
                }
            }
            putenv("$key=$value");
            $_ENV[$key] = $value;
        }
    }

    function env(string $key, ?string $default = null): ?string
    {
        $value = getenv($key);
        if ($value === false || $value === '') {
            return $default;
        }
        return $value;
    }
}

load_env(__DIR__ . '/../.env');

return [
    'site' => [
        'name' => env('SITE_NAME', 'AzerothCore by Minkey'),
        'realmlist' => env('REALMLIST_ADDRESS', 'wow.minkey.cz'),
        'client_download_url' => env('CLIENT_DOWNLOAD_URL', ''),
        'client_version' => env('CLIENT_VERSION', 'WotLK 3.3.5a (build 12340)'),
    ],
    'db' => [
        'host' => env('DB_HOST', '127.0.0.1'),
        'port' => (int) env('DB_PORT', '3306'),
        'database' => env('DB_DATABASE', 'acore_auth'),
        'username' => env('DB_USERNAME', ''),
        'password' => env('DB_PASSWORD', ''),
    ],
    'turnstile' => [
        'site_key' => env('TURNSTILE_SITE_KEY', ''),
        'secret_key' => env('TURNSTILE_SECRET_KEY', ''),
    ],
    'rules' => [
        'username_min' => (int) env('REG_USERNAME_MIN', '3'),
        'username_max' => (int) env('REG_USERNAME_MAX', '16'),
        'password_min' => (int) env('REG_PASSWORD_MIN', '8'),
        'password_max' => (int) env('REG_PASSWORD_MAX', '16'),
    ],
    'rate_limit' => [
        'max_attempts' => (int) env('REG_RATE_LIMIT_MAX', '5'),
        'window_seconds' => (int) env('REG_RATE_LIMIT_WINDOW', '3600'),
    ],
];