/*
 * FinanceBuddy -- place the "Hide/Show column total" entry inside the native column menu.
 *
 * Kanboard only exposes the template:board:column:dropdown hook AFTER the column menu <ul>, and its
 * dropdown JS clones just that <ul> when the menu opens. So the hook item cannot reach the menu on
 * its own. column_dropdown.php renders the item hidden next to the menu; this script moves each such
 * item into that column's real <ul> so it appears alongside "Hide this column", etc.
 *
 * BoardDragAndDrop.refresh() does $("#board-container").replaceWith(data) on every drag-and-drop and
 * poll refresh, so the observer is bound to the STABLE parent of #board-container (which survives the
 * swap), not to #board-container itself -- otherwise it would be left watching a detached node and
 * the entry would vanish until a full page reload.
 */
(function () {
    "use strict";

    function relocate() {
        var items = document.querySelectorAll(".financebuddy-menu-item");

        for (var i = 0; i < items.length; i++) {
            var li = items[i];

            // Already moved into a menu list: just make sure it is visible.
            if (li.closest("ul")) {
                li.style.display = "";
                continue;
            }

            // The hook renders the item as a child of the column's dropdown wrapper; its first <ul>
            // is the native menu.
            var menu = li.parentNode ? li.parentNode.querySelector("ul") : null;

            if (menu) {
                menu.appendChild(li);
                li.style.display = "";
            }
        }
    }

    function init() {
        var container = document.getElementById("board-container");

        if (!container) {
            return;
        }

        relocate();

        if (window.MutationObserver && container.parentNode) {
            new MutationObserver(relocate).observe(container.parentNode, { childList: true, subtree: true });
        }
    }

    if (document.readyState === "loading") {
        document.addEventListener("DOMContentLoaded", init);
    } else {
        init();
    }
})();