"use strict";

(function (global) {
  function htmlEscape(value = "") {
    return String(value ?? "").replace(/[&<>"']/g, ch => ({ "&": "&amp;", "<": "&lt;", ">": "&gt;", "\"": "&quot;", "'": "&#39;" }[ch] || ch));
  }

  function ensureStyle(id, cssText = "") {
    if (!id) return null;
    let style = document.getElementById(id);
    if (style) return style;
    style = document.createElement("style");
    style.id = id;
    style.textContent = cssText;
    document.head.appendChild(style);
    return style;
  }

  function createPanel({ id, className = "", html = "", after = null, parent = document.body } = {}) {
    if (!id) return null;
    let panel = document.getElementById(id);
    if (panel) return panel;
    panel = document.createElement("section");
    panel.id = id;
    if (className) panel.className = className;
    panel.innerHTML = html;
    if (after?.parentNode) after.parentNode.insertBefore(panel, after.nextSibling);
    else parent.appendChild(panel);
    return panel;
  }

  global.TarinaiUIHelpers = { htmlEscape, ensureStyle, createPanel };
})(typeof window !== "undefined" ? window : globalThis);