// ==UserScript==
// @name         知识星球·解除复制限制+帖子自动展开
// @namespace    https://axutongxue.com/
// @version      1.0
// @license      MIT
// @description  1. 去掉 disabled-copy 类及水印遮挡；2. 自动点击“展开”按钮保持全文展开
// @author       kejin & showerMuggle & 无与伦比
// @match        *://wx.zsxq.com/*
// @grant        none
// @downloadURL none
// ==/UserScript==

(function () {
    'use strict';

    /* ************** 通用工具 ************** */
    function waitForKeyElements(selectorOrFunction, callback, waitOnce = true, interval = 300, maxIntervals = -1) {
        const select = () => (typeof selectorOrFunction === 'function' ? selectorOrFunction() : document.querySelectorAll(selectorOrFunction));
        const tick = () => {
            const nodes = select();
            if (nodes.length) {
                nodes.forEach(n => {
                    if (n.dataset.alreadyFound) return;
                    const cancel = callback(n);
                    if (!cancel) n.dataset.alreadyFound = '1';
                });
            }
            if (--maxIntervals !== 0 && !(waitOnce && nodes.length)) {
                setTimeout(tick, interval);
            }
        };
        tick();
    }

    /* ************** 1. 解除复制限制 ************** */
    waitForKeyElements('.disabled-copy', el => el.classList.remove('disabled-copy'), false, 1000);
    waitForKeyElements('[watermark]', el => el.setAttribute('style', 'padding:10px;'), false, 1000);

    /* ************** 2. 帖子自动展开 ************** */
    const processed = new WeakSet();

    function smartClick(btn) {
        if (!btn || processed.has(btn)) return;
        const txt = btn.textContent.trim();
        if (!/展[开示]/.test(txt)) return;
        btn.dispatchEvent(new MouseEvent('click', { bubbles: true, cancelable: true, view: window }));
        processed.add(btn);
    }

    function expandAll() {
        document.querySelectorAll('p.showAll, button.showAll, span.showAll').forEach(smartClick);
    }

    // 首次+动态
    window.addEventListener('load', () => {
        expandAll();
        new MutationObserver(() => expandAll()).observe(document.body, { childList: true, subtree: true });
        window.addEventListener('hashchange', expandAll);
    });
})();