/*
 * OrganonTweaks -- move plugin-injected DOM bits into their native positions on the board.
 *
 * Both fixes are needed because Kanboard's relevant hooks render at the END of their
 * container, not where the item belongs:
 *
 * 1. "Remove this Column": the template:board:column:dropdown hook renders AFTER the column
 *    menu <ul> (and the dropdown JS clones only that <ul>), so we move the hidden <li> into
 *    the column's real <ul>.
 * 2. "Always show comment icon": the template:board:task:icons hook renders at the end of
 *    the card icons row, so the "+" bubble lands after priority instead of in the native
 *    comment slot. We move it just before the description icon (where the native comment
 *    icon sits), so the order matches whether or not the card has comments.
 *
 * Both re-run when the board is redrawn (AJAX polling / drag-and-drop refresh).
 */
(function () {
    "use strict";

    function relocateColumnMenuItems() {
        var items = document.querySelectorAll(".organontweaks-remove-column-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 repositionCommentIcons() {
        var items = document.querySelectorAll(".organontweaks-comment-add");

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

            if (!row) {
                continue;
            }

            // Native comment icon sits just before the description icon; if there is no
            // description, before the age / closed block. That is the slot we move into.
            // NB: the description icon is wrapped in <span class="tooltip"> (Kanboard's
            // tooltipLink), not an <a>, so we walk up to whatever is the row's direct child.
            var anchor = row.querySelector("i.fa-file-text-o") ||
                row.querySelector(".task-icon-age") ||
                row.querySelector(".task-board-closed");

            while (anchor && anchor.parentNode !== row) {
                anchor = anchor.parentNode;
            }

            // Move only if needed (keeps the MutationObserver from looping).
            if (anchor && anchor !== item && item.nextElementSibling !== anchor) {
                row.insertBefore(item, anchor);
            }
        }
    }

    function apply() {
        relocateColumnMenuItems();
        repositionCommentIcons();
    }

    function init() {
        var container = document.getElementById("board-container");
        if (!container) {
            return;
        }

        apply();

        // Observe the STABLE parent, not #board-container: Kanboard replaces the container
        // on every card drop / AJAX poll (BoardDragAndDrop.refresh), which would kill an
        // observer bound to the container itself and leave the items un-relocated after a
        // move. The parent survives, so apply() keeps running on every rebuild.
        var parent = container.parentNode;

        if (parent && window.MutationObserver) {
            new MutationObserver(apply).observe(parent, { childList: true, subtree: true });
        }
    }

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