// ==UserScript==
// @name         Display Oxford Admission Metadata
// @name:zh-CN   显示牛津录取玄学
// @namespace    https://blog.frankie.science
// @version      1.8
// @description  Parse and display metadata comments with toggleable OFFERDOCS
// @description:zh-CN  解析并显示元数据注释，带可切换的 OFFERDOCS
// @author       Frankie
// @match        *://*/*
// @grant        none
// @license      MIT License with Attribution
// @downloadURL https://update.greasyfork.icu/scripts/534644/Display%20Oxford%20Admission%20Metadata.user.js
// @updateURL https://update.greasyfork.icu/scripts/534644/Display%20Oxford%20Admission%20Metadata.meta.js
// ==/UserScript==

// Additional clause:
// 1. Any redistribution or modification must retain the original donation link and cannot remove or modify it.

(function () {
    'use strict';

    // 正则表达式匹配单个注释块
    const metadataRegex = /<!--\s*([\s\S]*?)\s*-->/g;

    // 子表达式解析注释内容
    const contentRegex = /docs:\s*(\d+),\s*#OFFERDOCS:\s*\|([^|]+(?:\|[^|]+)*)\|([^,]+),\s*#DALS:\s*([A-Z]+)/;

    // 获取页面 HTML 并匹配所有注释
    const pageContent = document.documentElement.innerHTML;
    const matches = [...pageContent.matchAll(metadataRegex)];

    const metadataList = [];

    // 遍历每个注释块
    matches.forEach(match => {
        const commentContent = match[1].trim();
        const contentMatch = commentContent.match(contentRegex);
        if (contentMatch) {
            metadataList.push({
                docs: contentMatch[1],
                offerDocsRaw: contentMatch[2],
                offerDocsDesc: contentMatch[3],
                dals: contentMatch[4]
            });
        }
    });

    if (metadataList.length > 0) {
        // 创建一个浮动窗口来显示数据
        const metadataBox = document.createElement('div');
        metadataBox.style.position = 'fixed';
        metadataBox.style.top = '10px';
        metadataBox.style.right = '10px';
        metadataBox.style.backgroundColor = '#f9f9f9';
        metadataBox.style.border = '1px solid #ccc';
        metadataBox.style.padding = '10px';
        metadataBox.style.zIndex = '10000';
        metadataBox.style.fontSize = '14px';
        metadataBox.style.fontFamily = 'Arial, sans-serif';
        metadataBox.style.color = '#333';
        metadataBox.style.maxHeight = '90%';
        metadataBox.style.overflowY = 'auto';

        metadataBox.innerHTML = `<b>Metadata Information</b><br>`;

        // 遍历每条注释内容并显示
        metadataList.forEach((metadata, index) => {
            const offerDocsList = metadata.offerDocsRaw.split('|');
            const offerDocsContent = `
                <ul>
                    ${offerDocsList.map(doc => `<li>${doc}</li>`).join('')}
                </ul>
                <b>Description:</b> ${metadata.offerDocsDesc}
            `;

            // 每个 OFFERDOCS 块的 HTML
            const offerDocsHTML = `
                <div>
                    <b>OFFERDOCS:</b>
                    <button style="margin-left: 5px; font-size: 12px;" class="toggle-button">Hide</button>
                    <div class="offer-docs-content" style="margin-top: 5px;">
                        ${offerDocsContent}
                    </div>
                </div>
            `;

            metadataBox.innerHTML += `
                <div style="margin-bottom: 10px;">
                    <b>Comment #${index + 1}</b><br>
                    <b>Docs:</b> ${metadata.docs}<br>
                    ${offerDocsHTML}
                    <b>DALS:</b> ${metadata.dals}
                </div>
            `;

            // 添加广告模块 显示链接https://resolvedinsaneox.com/jqnqbsdt?key=16f8e475f8e6507dc07bb3707f64c2ad
            const adLink = document.createElement('a');
            adLink.href = 'https://resolvedinsaneox.com/jqnqbsdt?key=16f8e475f8e6507dc07bb3707f64c2ad';
            adLink.textContent = '点击打开广告支持我！(Click to support me!)';
            adLink.style.display = 'block';
            adLink.style.marginTop = '5px';
            adLink.style.color = '#007BFF';
            adLink.style.textDecoration = 'none';
            adLink.style.fontSize = '12px';
            adLink.style.fontFamily = 'Arial, sans-serif';
            adLink.target = '_blank'; // 在新标签页打开链接
            metadataBox.appendChild(adLink);



            // 添加徽章
            const badgeLink = document.createElement('a');
            badgeLink.href = 'https://github.com/FrankieeW/DonateME/blob/main/README.md';
            badgeLink.target = '_blank'; // 在新标签页打开链接
            badgeLink.innerHTML = '<img src="https://img.shields.io/badge/Donate%20ME-000?logo=tether" alt="Donate me">';
            badgeLink.style.display = 'block';
            badgeLink.style.marginTop = '5px';
            badgeLink.style.color = '#007BFF';
            badgeLink.style.textDecoration = 'none';
            badgeLink.style.fontSize = '12px';
            badgeLink.style.fontFamily = 'Arial, sans-serif';
            metadataBox.appendChild(badgeLink);



        });

        // 将浮动窗口添加到页面
        document.body.appendChild(metadataBox);

        // 添加隐藏/显示功能
        const toggleButtons = metadataBox.querySelectorAll('.toggle-button');
        toggleButtons.forEach(button => {
            button.addEventListener('click', () => {
                const content = button.nextElementSibling;
                if (content.style.display === 'none') {
                    content.style.display = 'block';
                    button.textContent = 'Hide';
                } else {
                    content.style.display = 'none';
                    button.textContent = 'Show';
                }
            });
        });
    }
})();