<?php
$path = 'd:/Docker/jasan/ex/한경협 자산관리/한경협 직원 일람 2e9d19d26c9f414cb65e38320a21f912_all.csv';
$content = file_get_contents($path);
if (!mb_check_encoding($content, 'UTF-8')) {
    $content = mb_convert_encoding($content, 'UTF-8', 'EUC-KR');
}
$lines = explode("\n", str_replace("\r", "", $content));
$headerLine = array_shift($lines);
$header = str_getcsv($headerLine);

$data = [];
$hierarchy = [];

foreach ($lines as $line) {
    if (trim($line) === '')
        continue;
    $row = str_getcsv($line);
    if (count($row) >= 17) { // ensure enough columns
        $combined = array_combine($header, array_slice($row, 0, count($header)));
        $company = trim($combined['회사'] ?? '');
        $parent = trim($combined['상위 항목'] ?? '');
        $dept = trim($combined['부서'] ?? '');

        // Clean parent name (remove (...) part)
        $parentClean = preg_replace('/\s*\(.*?\)$/', '', $parent);

        if ($company) {
            if (!isset($hierarchy[$company]))
                $hierarchy[$company] = [];
            if ($parentClean) {
                if (!isset($hierarchy[$company][$parentClean]))
                    $hierarchy[$company][$parentClean] = [];
                if ($dept && $dept !== $parentClean) {
                    $hierarchy[$company][$parentClean][] = $dept;
                }
            }
        }
    }
}

foreach ($hierarchy as $company => $parents) {
    echo "🏢 " . $company . "\n";
    foreach ($parents as $parent => $depts) {
        echo "  📂 " . $parent . "\n";
        $uniqueDepts = array_unique($depts);
        foreach ($uniqueDepts as $d) {
            echo "    📄 " . $d . "\n";
        }
    }
    echo "\n";
}
?>