<?php

/**
 * Get the base URL for the application
 */
function base_url(): string
{
    $protocol = isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] === 'on' ? 'https' : 'http';
    $host = $_SERVER['HTTP_HOST'] ?? 'localhost';
    return $protocol . '://' . $host;
}

/**
 * Get the path for a named route
 */
function path_for(string $name, array $params = []): string
{
    // This would be implemented with Slim's URL generator in a real application
    $routes = [
        'home' => '/',
        'games.index' => '/media/games',
        'movies.index' => '/media/movies',
        'tvshows.index' => '/media/tv-shows',
        'music.index' => '/media/music',
        'auth.login' => '/login',
        'auth.logout' => '/logout'
    ];

    $path = $routes[$name] ?? '/';

    // Replace parameters in path
    foreach ($params as $key => $value) {
        $path = str_replace('{' . $key . '}', $value, $path);
    }

    return $path;
}

/**
 * Get CSRF token for forms
 */
function csrf_token(): string
{
    if (isset($_SESSION['auth']) && $_SESSION['auth'] instanceof \App\Services\AuthService) {
        return $_SESSION['auth']->generateCSRFToken();
    }
    return '';
}

/**
 * Get current authenticated user
 */
function current_user(): ?array
{
    if (isset($_SESSION['auth']) && $_SESSION['auth'] instanceof \App\Services\AuthService) {
        return $_SESSION['auth']->getCurrentUser();
    }
    return null;
}

/**
 * Check if current user is authenticated
 */
function is_logged_in(): bool
{
    if (isset($_SESSION['auth']) && $_SESSION['auth'] instanceof \App\Services\AuthService) {
        return $_SESSION['auth']->isLoggedIn();
    }
    return false;
}

/**
 * Check if current user is admin
 */
function is_admin(): bool
{
    if (isset($_SESSION['auth']) && $_SESSION['auth'] instanceof \App\Services\AuthService) {
        return $_SESSION['auth']->isAdmin();
    }
    return false;
}

/**
 * Format bytes to human readable format
 */
function format_bytes(int $bytes, int $precision = 2): string
{
    $units = ['B', 'KB', 'MB', 'GB', 'TB'];

    $bytes = max($bytes, 0);
    $pow = floor(($bytes ? log($bytes) : 0) / log(1024));
    $pow = min($pow, count($units) - 1);

    $bytes /= (1 << (10 * $pow));

    return round($bytes, $precision) . ' ' . $units[$pow];
}

/**
 * Format duration in seconds to human readable format
 */
function format_duration(int $seconds): string
{
    $hours = floor($seconds / 3600);
    $minutes = floor(($seconds % 3600) / 60);
    $seconds = $seconds % 60;

    if ($hours > 0) {
        return sprintf('%dh %dm', $hours, $minutes);
    } elseif ($minutes > 0) {
        return sprintf('%dm %ds', $minutes, $seconds);
    } else {
        return sprintf('%ds', $seconds);
    }
}

/**
 * Generate a random string
 */
function generate_random_string(int $length = 32): string
{
    $characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
    $charactersLength = strlen($characters);
    $randomString = '';

    for ($i = 0; $i < $length; $i++) {
        $randomString .= $characters[random_int(0, $charactersLength - 1)];
    }

    return $randomString;
}

/**
 * Check if file exists and is readable
 */
function file_exists_and_readable(string $path): bool
{
    return file_exists($path) && is_readable($path);
}

/**
 * Get file extension from path
 */
function get_file_extension(string $path): string
{
    return strtolower(pathinfo($path, PATHINFO_EXTENSION));
}

/**
 * Check if string is valid JSON
 */
function is_json(string $string): bool
{
    json_decode($string);
    return json_last_error() === JSON_ERROR_NONE;
}

/**
 * Convert array to object recursively
 */
function array_to_object(array $array): object
{
    return json_decode(json_encode($array), false);
}

/**
 * Convert object to array recursively
 */
function object_to_array(object $object): array
{
    return json_decode(json_encode($object), true);
}