// ==UserScript==
// @name         Oldman OldMark
// @namespace    http://tampermonkey.net/
// @version      2.2
// @description  Added a bit of Markdown, destroyed a lot of formerly working stuff, lol.
// @match        https://bbs.oldmanemu.net/thread-create-*
// @match        https://bbs.oldmanemu.net/post-create-*
// @match        https://bbs.oldmanemu.net/post-update-*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    // Load the required libraries
    var script1 = document.createElement('script');
    script1.src = "https://cdn.jsdelivr.net/npm/marked@3/marked.min.js";
    document.head.appendChild(script1);

    var script2 = document.createElement('script');
    script2.src = "https://cdn.jsdelivr.net/simplemde/latest/simplemde.min.js";
    document.head.appendChild(script2);

    var script3 = document.createElement('script');
    script3.src = "https://cdn.jsdelivr.net/npm/turndown@7";
    document.head.appendChild(script3);

    var link = document.createElement('link');
    link.rel = "stylesheet";
    link.href = "https://cdn.jsdelivr.net/simplemde/latest/simplemde.min.css";
    document.head.appendChild(link);

    // Wait for the libraries to load
    setTimeout(function() {
        // Find the forum text editor
        var forumEditor = document.querySelector('.edui-container');

        // Create a new textarea element for the markdown editor
        var markdownEditor = document.createElement('textarea');
        markdownEditor.id = 'markdown-editor';
        forumEditor.parentNode.insertBefore(markdownEditor, forumEditor);

        // Initialize the SimpleMDE markdown editor
        var simplemde = new SimpleMDE({
            element: document.getElementById('markdown-editor'),
            renderingConfig: {
                singleLineBreaks: false,
                codeSyntaxHighlighting: true,
            },
            spellChecker: false,
            previewRender: function(plainText) {
                return marked(plainText);
            }
        });

        // Hide the original forum text editor
        forumEditor.style.display = 'none';

        // Convert existing content in the old editor to markdown in the new markdown editor
        var oldEditorContent = forumEditor.querySelector('.edui-body-container').innerHTML;
        var markdownText = htmlToMarkdown(oldEditorContent);
        simplemde.value(markdownText);

        simplemde.codemirror.on("change", function(){
            var markdownText = simplemde.value();
            var htmlText = marked(markdownText);
            forumEditor.querySelector('.edui-body-container').innerHTML = htmlText;
        });

        // Listen for clicks on the specified buttons and input only on the specified URL
        var primaryButtons = document.querySelectorAll('.btn.btn-primary');
        if (primaryButtons.length > 0) {
            primaryButtons[0].addEventListener('click', updateMarkdown);
            if (primaryButtons.length > 1) {
                primaryButtons[1].addEventListener('click', updateMarkdown);
            }
        }
        function updateMarkdown() {
            var updatedContent = forumEditor.querySelector('.edui-body-container').innerHTML;
            var updatedMarkdown = htmlToMarkdown(updatedContent);
            simplemde.value(updatedMarkdown);
        }

        // Create the third button
        var button3 = document.createElement('button');
        button3.type = 'button';
        button3.className = 'btn btn-primary';
        button3.textContent = '上传完成后点此更新';
        button3.addEventListener('click', updateMarkdown);

        // Create a container div for the buttons
        var buttonContainer = document.createElement('div');
        buttonContainer.style.textAlign = 'right';
        buttonContainer.style.marginBottom = '5px';

        // Append the buttons to the container div
        buttonContainer.appendChild(button3);
        buttonContainer.appendChild(document.createTextNode('\u00A0')); // Add a space between buttons

        // Find the target div to insert the container div above
        var targetDiv = document.querySelector('#ss_ttk');

        // Insert the container div before the target div
        targetDiv.parentNode.insertBefore(buttonContainer, targetDiv);

        // When submitting the form, convert the markdown into HTML and insert it into the original forum text editor
        var form = document.querySelector('form');
        form.addEventListener('submit', function() {
            var markdownText = simplemde.value();
            var htmlText = marked(markdownText);
            forumEditor.querySelector('.edui-body-container').innerHTML = htmlText;
        });

    }, 1000);

    // Helper function to convert HTML to markdown using Turndown
    function htmlToMarkdown(html) {
        var turndownService = new TurndownService({ headingStyle: 'atx' });
        return turndownService.turndown(html);
    }
})();

Oldman 有什么区别吗？

我排版方便啊……
标题就加个#，列表就加个-，链接就加个[]()，还弄什么word复制。全键盘操作，最爽了

Oldman 有什么区别吗？

钉龙十 小谢起床啦

一条大辉狼 讲真，对于多数人特别是有富文本编辑器存在的时候，MD并没多大意义 不过还是要给LZ的研究精神点赞哦

谢谢

虽然肯定不如富文本编辑器直白，但是纯键盘操作还是比一会抬手用一次鼠标，点个加粗之类的方便……而且毕竟是纯文本，也不存在复制一下格式全乱了的问题

阿列克小谢 看不出来

当然没区别，最后还不都是html的<p></p>、<strong></strong>之类。用的人方便了而已

钉龙十 太阳公公都晒你的红屁股了，还睡！

钉龙十 熬夜玩H game啊？