window.WarpBoxUI = (() => {
    let toastTimer = null;

    function toast(message, type = "info", options = {}) {
        const target = options.target || document.querySelector("#toast");
        if (!target) return;
        target.textContent = message;
        target.classList.remove("toast-info", "toast-warning", "toast-error", "is-visible");
        target.classList.add(`toast-${type}`, "is-visible");
        clearTimeout(toastTimer);
        toastTimer = setTimeout(() => target.classList.remove("is-visible"), options.duration || 2600);
    }

    function popupElements(options = {}) {
        return {
            popup: options.popup || document.querySelector("#doc-popup"),
            title: options.title || document.querySelector("#doc-popup-title"),
            body: options.body || document.querySelector("#doc-popup-body"),
            backdrop: options.backdrop || document.querySelector("#modal-backdrop"),
        };
    }

    function openPopup(titleText, html, options = {}) {
        const parts = popupElements(options);
        if (!parts.popup || !parts.title || !parts.body) return;
        parts.title.textContent = titleText;
        parts.body.innerHTML = html;
        parts.popup.classList.toggle("is-about-popup", Boolean(options.about));
        parts.popup.classList.toggle("is-properties-popup", Boolean(options.properties));
        parts.popup.classList.toggle("is-preview-popup", Boolean(options.preview));
        parts.popup.classList.add("is-visible");
        parts.backdrop?.classList.add("is-visible");
    }

function closePopup(options = {}) {
    const parts = popupElements(options);
    parts.popup?.classList.remove("is-visible", "is-about-popup", "is-properties-popup", "is-preview-popup");
    parts.backdrop?.classList.remove("is-visible");
}

function htmlEscape(value) {
    return String(value || "")
        .replaceAll("&", "&")
        .replaceAll("<", "&lt;")
        .replaceAll(">", "&gt;")
        .replaceAll('"', "&quot;")
        .replaceAll("'", "&#39;");
}

function renderTemplate(template, data = {}) {
    return String(template).replace(/\{\{\s*([a-zA-Z0-9_]+)\s*\}\}/g, (_, key) => {
        return Object.prototype.hasOwnProperty.call(data, key) ? String(data[key]) : "";
    });
}

function bindMenuBar(options = {}) {
    const root = options.root || document;
    const itemSelector = options.itemSelector || ".menu-item";
    const buttonSelector = options.buttonSelector || ".menu-button";
    const items = Array.from(root.querySelectorAll(itemSelector));

    function close() {
        items.forEach((item) => {
            item.classList.remove("is-open");
            item.querySelector(buttonSelector)?.setAttribute("aria-expanded", "false");
        });
    }

    function open(item) {
        close();
        item.classList.add("is-open");
        item.querySelector(buttonSelector)?.setAttribute("aria-expanded", "true");
    }

    items.forEach((item) => {
        const button = item.querySelector(buttonSelector);
        button?.addEventListener("click", (event) => {
            event.stopPropagation();
            const wasOpen = item.classList.contains("is-open");
            close();
            if (!wasOpen) open(item);
        });

        item.addEventListener("mouseenter", () => {
            if (!root.querySelector(`${itemSelector}.is-open`)) return;
            open(item);
        });
    });

    document.addEventListener("click", (event) => {
        if (!event.target.closest(itemSelector)) close();
    });

    return { close, open };
}

return { toast, openPopup, closePopup, htmlEscape, renderTemplate, bindMenuBar };
})();