<?php
require_once __DIR__ . '/fl-config.php';
require_once __DIR__ . '/fl-path.php';
require_once __DIR__ . '/fl-meta.php';

header('Content-Type: text/plain; charset=UTF-8');

$path = isset($_POST['path']) ? (string) $_POST['path'] : '';
$field = isset($_POST['field']) ? (string) $_POST['field'] : 'APP_DESCRIPTION';
$value = isset($_POST['value']) ? (string) $_POST['value'] : (isset($_POST['description']) ? (string) $_POST['description'] : '');

$base = FL_DATA_ROOT;
$full = fl_resolve_path($path, $base);

if (!$full || !is_file($full)) {
    echo 'NG:path';
    exit;
}

$field = fl_meta_normalize_field($field);
if ($field === '') {
    echo 'NG:field';
    exit;
}

if (!fl_write_meta($full, $field, $value)) {
    echo 'NG:write';
    exit;
}

echo 'OK';