// lib/forms/parseFormXml.js
import xpath from "xpath";

/**
 * NOTE: Your current page uses DOMParser, which is available in the browser.
 * For SSR parsing you'd usually use xmldom or a similar package.
 *
 * This module supports BOTH:
 * - Browser: pass DOMParser output doc
 * - Server: if you later add xmldom, pass its doc here
 */

export function getSectionCount(doc) {
    const tabs = xpath.select("/form/tabs/tab[*]", doc);
    return Array.isArray(tabs) ? tabs.length : 0;
}

export function getTabTitles(doc) {
    // same XPath you had
    const titleAttrs = xpath.select(
        "//form/tabs/tab[*]/labels/label[@description]/@description",
        doc
    );

    if (!Array.isArray(titleAttrs)) return [];
    // Attribute nodes differ by parser; be defensive:
    return titleAttrs
        .map((n) => (typeof n?.value === "string" ? n.value : n?.toString?.()))
        .filter(Boolean);
}

export function getTabs(doc) {
    const tabs = xpath.select("//form/tabs/tab[*]", doc);
    return Array.isArray(tabs) ? tabs : [];
}