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nvbangg / CodePTIT Copier

// ==UserScript==
// @name         CodePTIT Copier
// @namespace    https://github.com/nvbangg/CodePTIT
// @version      1.0
// @description  Xóa dòng trống thừa khi copy Testcase. Tạo nút Copy nhanh Testcase và Mã bài_Tên bài đã Xóa dấu tiếng việt cùng khoảng trắng trên CodePTIT (cả phiên bản cũ và mới)
// @author       nvbangg (https://github.com/nvbangg)
// @copyright    2025, nvbangg (https://github.com/nvbangg)
// @homepage     https://github.com/nvbangg/CodePTIT
// @match        https://code.ptit.edu.vn/student/question*
// @match        https://code.ptit.edu.vn/beta*
// @icon         https://code.ptit.edu.vn/favicon.ico
// @grant        GM_setClipboard
// @grant        GM_getValue
// @grant        GM_setValue
// @grant        GM_registerMenuCommand
// @grant        GM_addStyle
// @run-at       document-start
// @license      MIT
// @downloadURL https://openuserjs.org/install/nvbangg/CodePTIT_Copier.user.js
// @updateURL https://openuserjs.org/meta/nvbangg/CodePTIT_Copier.meta.js
// ==/UserScript==

//! HÃY XEM HƯỚNG DẪN TẠI: https://github.com/nvbangg/CodePTIT/blob/main/README.md

(() => {
  "use strict";

  // Settings mặc định
  const DEFAULT_SETTINGS = { fileExtension: ".cpp", removeAccents: true, textCase: "titleCase", separator: "noSpaces" };
  const settings = { ...DEFAULT_SETTINGS, ...GM_getValue("settings", {}) };

  const ICONS = {
    copy: '<svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="white" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><rect x="9" y="9" width="13" height="13"/><path d="M5 15H4a2 2 0 0 1-2-2V4a2 2 0 0 1 2-2h9a2 2 0 0 1-2 2v1"/></svg>',
    check: '<svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="white" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><polyline points="20 6 9 17 4 12"></polyline></svg>'
  };
  const FORMATTERS = {
    case: {
      titleCase: str => str.replace(/\S+/g, w => w.charAt(0).toUpperCase() + w.slice(1).toLowerCase()),
      uppercase: str => str.toUpperCase(),
      lowercase: str => str.toLowerCase(),
      keepOriginal: str => str
    },
    separator: { keepOriginal: " ", underscore: "_", dash: "-", noSpaces: "" }
  };
  const OPTIONS = {
    textCase: { titleCase: "In Hoa Đầu Từ", uppercase: "IN HOA", lowercase: "in thường", keepOriginal: "Giữ nguyên" },
    separator: { noSpaces: "Xóa khoảng cách", underscore: "Gạch dưới (_)", dash: "Gạch ngang (-)", keepOriginal: "Giữ nguyên" }
  };

  // CSS
  GM_addStyle(`
    .copy-btn,.title-copy-btn{background:rgba(30,144,255,.5);border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;width:20px;height:20px;border-radius:3px;padding:2px;position:relative;outline:none!important;user-select:none}
    .copy-btn:focus,.title-copy-btn:focus{outline:none!important;box-shadow:none!important}
    .copy-btn{position:absolute;top:0;right:0}
    .title-copy-btn{margin-right:5px;vertical-align:middle;transform:translateY(-2px)}
    .copied{background:rgba(50,205,50,1)!important}
    .settings-overlay{position:fixed;inset:0;z-index:10000;background:rgba(0,0,0,.5);display:flex;align-items:center;justify-content:center}
    .settings-modal{background:#fff;border-radius:8px;width:300px;padding:15px;max-width:90vw;position:relative}
    .settings-modal h3{margin:0 0 15px;text-align:center;padding-bottom:10px;border-bottom:1px solid #eee}
    .settings-group{margin-bottom:10px}.settings-group label{display:block;margin-bottom:4px}
    .settings-input,.settings-select{width:100%;padding:5px;border:1px solid #ddd;border-radius:4px}
    .settings-input:focus,.settings-select:focus,.settings-btn-save:focus,.settings-btn-reset:focus{outline:none!important}
    .settings-buttons{display:flex;justify-content:center;margin-top:15px;gap:10px}
    .settings-btn-save,.settings-btn-reset{padding:6px 15px;border:none;border-radius:4px;cursor:pointer}
    .settings-btn-save{background:#1890ff;color:#fff}.settings-btn-reset{background:#d8d8d8;color:#333}
    .settings-footer{border-top:1px solid #eee;margin-top:15px;padding-top:10px;text-align:center}
    .settings-footer a{color:#1890ff!important}
    .settings-close{position:absolute;top:15px;right:15px;width:25px;height:25px;cursor:pointer;text-align:center;line-height:25px;font-size:25px;font-weight:bold;color:#333}
    .settings-modal select,.settings-modal button,.settings-close{outline:none!important}
  `);

  const $ = (s, p = document) => p.querySelector(s), $$ = (s, p = document) => [...p.querySelectorAll(s)];
  const isBeta = () => location.pathname.includes("/beta");
  const isValidTestCase = el => el?.textContent?.trim() && !el.querySelector(".copy-btn") && !el.closest("table");
  const debounce = (fn, delay = 300) => {let timer; return (...args) => (clearTimeout(timer), timer = setTimeout(() => fn(...args), delay));};

  const copyToClipboard = (text, button) => {
    try {
      GM_setClipboard(text, "text");
      const originalContent = button.innerHTML;
      button.innerHTML = ICONS.check;
      button.classList.add("copied");
      setTimeout(() => (button.innerHTML = originalContent, button.classList.remove("copied")), 800);
      return true;
    } catch (e) {console.error("Copy failed:", e); return false;}
  };
  const formatTitle = title => {
    if (!title) return "";
    const normalized = settings.removeAccents
      ? title.normalize("NFD").replace(/[\u0300-\u036f]|[đĐ]/g, m => m === "đ" ? "d" : m === "Đ" ? "D" : "")
      : title.normalize("NFC");
    return (FORMATTERS.case[settings.textCase] || FORMATTERS.case.keepOriginal)(normalized)
      .replace(/\s+/g, FORMATTERS.separator[settings.separator] || "");
  };
  const getTestcaseContent = cell => (cell.querySelector("code, pre")?.innerText || cell.innerText || "").replace(/[\u00A0\u1680\u180E\u2000-\u200B\u202F\u205F\u3000\uFEFF]/g, " ").trimEnd();

  const createButton = (isTitle, onClick) => {
    const btn = document.createElement("button");
    btn.className = isTitle ? "title-copy-btn" : "copy-btn";
    btn.innerHTML = ICONS.copy;
    btn.setAttribute("aria-label", "Copy");
    btn.addEventListener("click", onClick);
    return btn;
  };
  const addCopyButton = cell => {
    if (!cell?.textContent?.trim() || cell.dataset.copyAdded) return;
    window.getComputedStyle(cell).position === "static" && (cell.style.position = "relative");
    cell.dataset.copyAdded = "true";
    cell.appendChild(createButton(false, e => {
      e.preventDefault();
      e.stopPropagation();
      const content = getTestcaseContent(cell);
      content.trim() && copyToClipboard(content, e.currentTarget);
    }));
  };
  const addTitleCopyButton = titleEl => {
    if (!titleEl || titleEl.dataset.copyAdded) return;
    titleEl.dataset.copyAdded = "true";
    const btn = createButton(true, e => {
      e.preventDefault(); e.stopPropagation();
      const { code, title } = getProblemInfo();
      (code || title) && copyToClipboard(`${code.trim()}_${formatTitle(title)}${settings.fileExtension}`, e.currentTarget);
    });
    Object.assign(btn.style, {marginRight:"8px", verticalAlign:"middle", display:"inline-flex"});
    titleEl.insertBefore(btn, titleEl.firstChild);
  };
  const getProblemInfo = () => isBeta()
    ? (() => {
        // Trang beta
        const problemCode = location.pathname.includes("/beta/problems/") ? location.pathname.split("/").pop().toUpperCase() : "";
        const element = $("h1") || $("h2");
        return {code: problemCode, title: element?.textContent.trim() || ""};
      })()
    : (() => {
        // Trang cũ
        const titleElement = $(".submit__nav p span a.link--red");
        return titleElement
          ? {code: titleElement.href.match(/\/([^\/]+)$/)?.[1] || "", title: titleElement.textContent.trim()}
          : {code: "", title: ""};
      })();

  // Chuyển đổi các thẻ p thành div trong bảng tbody
  const convertParagraphsToDiv = () => {
    const table = document.querySelector("tbody");
    if (!table) return;
    Array.from(table.getElementsByTagName("p")).forEach(p => p.outerHTML = `<div>${p.innerHTML}</div>`);
  };

  const showSettingsModal = () => {
    $(".settings-overlay")?.remove();
    const overlay = document.createElement("div");
    overlay.className = "settings-overlay";
    const createOptions = (optionsObj, selected) => Object.entries(optionsObj)
      .map(([value, text]) => `<option value="${value}" ${selected === value ? "selected" : ""}>${text}</option>`)
      .join("");
    
    overlay.innerHTML = `<div class="settings-modal">
      <span class="settings-close">×</span>
      <h3>⚙️ Settings</h3>
      <div class="settings-group"><label>Đuôi file: <input type="text" id="fileExtension" class="settings-input" value="${settings.fileExtension}"></label></div>
      <div class="settings-group"><label><input type="checkbox" id="removeAccents" ${settings.removeAccents ? "checked" : ""}> Xóa dấu tiếng Việt</label></div>
      <div class="settings-group"><label>Kiểu chữ: <select id="textCase" class="settings-select">${createOptions(OPTIONS.textCase, settings.textCase)}</select></label></div>
      <div class="settings-group"><label>Khoảng cách: <select id="separator" class="settings-select">${createOptions(OPTIONS.separator, settings.separator)}</select></label></div>
      <div class="settings-buttons"><button class="settings-btn-reset">Reset</button><button class="settings-btn-save">Lưu</button></div>
      <div class="settings-footer">CodePTIT Copier v1.0 <a href="https://github.com/nvbangg/CodePTIT" target="_blank">github.com/nvbangg/CodePTIT</a></div>
    </div>`;

    document.body.appendChild(overlay);
    const closeModal = () => overlay.remove();
    $(".settings-btn-save", overlay).addEventListener("click", () => {
      Object.assign(settings, {
        fileExtension: $("#fileExtension", overlay).value,
        removeAccents: $("#removeAccents", overlay).checked,
        textCase: $("#textCase", overlay).value,
        separator: $("#separator", overlay).value
      });
      GM_setValue("settings", settings);
      closeModal();
    });
    $(".settings-btn-reset", overlay).addEventListener("click", () => {
      $("#fileExtension", overlay).value = DEFAULT_SETTINGS.fileExtension;
      $("#removeAccents", overlay).checked = DEFAULT_SETTINGS.removeAccents;
      $("#textCase", overlay).value = DEFAULT_SETTINGS.textCase;
      $("#separator", overlay).value = DEFAULT_SETTINGS.separator;
    });
    $(".settings-close", overlay).addEventListener("click", closeModal);
    overlay.addEventListener("click", e => e.target === overlay && closeModal());
  };

  const processLegacyPage = () => {
    const titleElement = $(".submit__nav p span a.link--red");
    if (titleElement) addTitleCopyButton(titleElement);
    $$(".submit__des tr:not(:first-child) td").forEach(addCopyButton);
    $$(".submit__des [class*='testcase']").filter(isValidTestCase).forEach(addCopyButton);
  };
  const processBetaPage = () => {
    if (!/\/beta\/problems\/[A-Za-z0-9_]+/.test(location.pathname)) return;
    $$('table:not(.ant-table-fixed)').forEach(table => 
      table?.querySelectorAll('tr').length > 1 && table.querySelectorAll('tr:not(:first-child) td').forEach(cell => 
        cell?.textContent?.trim() && !cell.querySelector('.copy-btn') && addCopyButton(cell))
    );
    $$('[class*=\'testcase\']').filter(isValidTestCase).forEach(addCopyButton);
    const titleElement = $$('h1, h2').find(el => el?.textContent?.trim() && !el.parentElement?.querySelector('.title-copy-btn'));
    titleElement && addTitleCopyButton(titleElement);
  };
  const cleanupButtons = () => ($$('.copy-btn, .title-copy-btn').forEach(btn => btn.remove()), $$('[data-copy-added]').forEach(el => el.removeAttribute('data-copy-added')));
  const processPage = () => (cleanupButtons(), isBeta() ? processBetaPage() : processLegacyPage(), convertParagraphsToDiv());

  // Khởi tạo
  (() => {
    GM_registerMenuCommand("Settings", showSettingsModal);
    const observer = new MutationObserver(debounce(() => {
      if (observer.lastUrl !== location.href) return (observer.lastUrl = location.href, processPage());
      (isBeta() ? processBetaPage : processLegacyPage)();
      convertParagraphsToDiv();
    }, 300));
    observer.lastUrl = location.href;
    const startObserver = () => (observer.observe(document.documentElement, {childList: true, subtree: true, attributes: false}), processPage());
    document.readyState !== "loading" ? startObserver() : document.addEventListener("DOMContentLoaded", startObserver);
  })();
})();