// ==UserScript==
// @name         kf私信格式恢复
// @namespace    https://github.com/kisaragizen/kf-message-repair
// @version      1.0.1
// @description  恢复因quote截断img导致的私信显示错误
// @author       kisaragizen
// @match        https://bbs.kfpromax.com/message.php?action=read*
// @grant        none
// @downloadURL none
// ==/UserScript==

(function() {
    'use strict';
    const pairedElements = [...document.querySelectorAll('img')]
        .filter(img => img.src.includes('[/quote]'))
        .map(img => {
            const siblings = [];
            let prevNode = img.previousSibling;
            while (prevNode) {
                siblings.push(prevNode);
                if (prevNode.textContent.trim().startsWith('[quote]')) {
                    break;
                }
                prevNode = prevNode.previousSibling;
            }
            return {
                img: img,
                siblings: siblings
            };
        });

    pairedElements.forEach(pair => {
        const { img, siblings } = pair;
        const originalURL = img.src.split('[img]')[1];
        const decodedContent = decodeURIComponent(img.src.split('[/quote]')[1].split('[img]')[0]);

        const layer00 = document.createElement('fieldset');
        const layer10 = document.createElement('legend');
        layer10.innerHTML = 'Quote:';
        layer00.appendChild(layer10);
        const newSiblings = siblings.reverse();
        newSiblings[0].textContent = newSiblings[0].textContent.replace('[quote]', '');
        for (let x of newSiblings) {
            layer00.appendChild(x);
        }
        img.insertAdjacentElement('beforebegin', layer00);

        const originalImg = document.createElement('img');
        originalImg.src = originalURL;
        img.insertAdjacentElement('afterend', originalImg);
        img.outerHTML = decodedContent;
    });
})();