<?php
// php -f view_phar_file_contents.php -- -nosize
$pharFile = 'neatoDeploy.phar';

function hasNoSizeFlag(): bool {
    global $argv;
    return in_array('-nosize', $argv) || in_array('--nosize', $argv);
}

function formatBytes(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 * $pow)); // Calculation: 1024^$pow
    return round($bytes, $precision) . $units[$pow];
}

try {
    if (!is_readable($pharFile)) {
        echo "Need to be root!";
        exit(1);
    }
    // Try different archive types
    $ext = pathinfo($pharFile, PATHINFO_EXTENSION);

    switch (strtolower($ext)) {
        case 'phar':
            $archive = new Phar($pharFile, 0);
            break;
        case 'tar':
        case 'zip':            
            $archive = new PharData($pharFile);
            break;
        case 'gz':
        case 'tgz':
            $archive = new PharData('compress.zlib://' . $pharFile);
            break;
        default:
            throw new Exception("Unsupported archive type: $ext");
    }
    
    // Get the iterator for the Phar archive
    $iterator = new RecursiveIteratorIterator($archive);

    foreach ($iterator as $file) { 
        $path = $file->getPathname();
        $parent = dirname($path);
        $bp = basename($parent);
        if ($bp == $pharFile) {
            $first = "";
        } else {
            $first = $bp . '/';
        }
        $lastTwoParts =  $first . basename($path);
        if (hasNoSizeFlag()) {
            echo  $lastTwoParts . PHP_EOL;
        } else { 
            $size = formatBytes($file->getSize()) . "\t ";
            echo  $size . $lastTwoParts . PHP_EOL;
        }
    }
} catch (PharException | Exception $e) {
    echo "Error reading Phar archive: " . $e->getMessage();
}