<?php

declare(strict_types=1);

function formatQrDisplayName(string $nazwa): string
{
    $nazwa = trim($nazwa);
    if ($nazwa === '') {
        return 'Stolik';
    }

    if (preg_match('/^stolik\s*(.*)$/iu', $nazwa, $matches)) {
        $suffix = trim((string) $matches[1]);
        return $suffix !== '' ? 'Stolik ' . $suffix : 'Stolik';
    }

    return 'Stolik ' . $nazwa;
}

function sanitizeZipFileName(string $name): string
{
    $name = preg_replace('/[\\\\\\/:*?"<>|]+/u', '-', $name) ?? $name;
    $name = preg_replace('/\\s+/u', ' ', $name) ?? $name;
    $name = trim($name, " .-\t");

    return $name !== '' ? $name : 'Stolik';
}

function buildUniqueQrFileNames(array $tables): array
{
    $used = [];

    foreach ($tables as &$table) {
        $base = sanitizeZipFileName(formatQrDisplayName((string) ($table['nazwa'] ?? '')));
        $candidate = $base;
        $index = 2;

        while (isset($used[$candidate])) {
            $candidate = $base . ' (' . $index . ')';
            $index++;
        }

        $used[$candidate] = true;
        $table['fileName'] = $candidate . '.png';
    }
    unset($table);

    return $tables;
}

function buildGuestAppBaseUrl(): array
{
    $host = $_SERVER['HTTP_HOST'] ?? 'localhost';
    $scheme = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off') ? 'https' : 'http';
    $scriptDir = str_replace('\\', '/', dirname($_SERVER['SCRIPT_NAME'] ?? '/public/staff'));
    $publicDir = str_replace('\\', '/', dirname($scriptDir));
    $basePath = rtrim($publicDir, '/') . '/app.html?h=';
    $baseUrl = "{$scheme}://{$host}{$basePath}";

    return [$baseUrl, $basePath];
}

function appendPreviewParam(string $link, string $previewQuery): string
{
    return str_contains($link, '?') ? $link . '&' . $previewQuery : $link . '?' . $previewQuery;
}