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CodePTIT Copier

Sửa lỗi dòng trống thừa khi copy trên CodePTIT. Tạo nút copy nhanh Testcase và Mã bài + Tên bài được chuẩn hóa

Versione datata 13/10/2025. Vedi la nuova versione l'ultima versione.

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You will need to install an extension such as Tampermonkey to install this script.

Dovrai installare un'estensione come Tampermonkey o Violentmonkey per installare questo script.

Dovrai installare un'estensione come Tampermonkey o Userscripts per installare questo script.

Dovrai installare un'estensione come ad esempio Tampermonkey per installare questo script.

Dovrai installare un gestore di script utente per installare questo script.

(Ho già un gestore di script utente, lasciamelo installare!)

Dovrai installare un'estensione come ad esempio Stylus per installare questo stile.

Dovrai installare un'estensione come ad esempio Stylus per installare questo stile.

Dovrai installare un'estensione come ad esempio Stylus per installare questo stile.

Dovrai installare un'estensione per la gestione degli stili utente per installare questo stile.

Dovrai installare un'estensione per la gestione degli stili utente per installare questo stile.

Dovrai installare un'estensione per la gestione degli stili utente per installare questo stile.

(Ho già un gestore di stile utente, lasciamelo installare!)

// ==UserScript==
// @name         CodePTIT Copier
// @namespace    https://github.com/nvbangg/CodePTIT_Copier
// @version      1.4.5
// @description  Sửa lỗi dòng trống thừa khi copy trên CodePTIT. Tạo nút copy nhanh Testcase và Mã bài + Tên bài được chuẩn hóa
// @author       nvbangg (https://github.com/nvbangg)
// @copyright    Copyright (c) 2025 Nguyễn Văn Bằng (nvbangg, github.com/nvbangg)
// @homepage     https://github.com/nvbangg/CodePTIT_Copier
// @homepageURL  https://chromewebstore.google.com/detail/codeptit-copier/ncckkgpgiplcmbmobjlffkbaaklohhbo
// @match        https://code.ptit.edu.vn/*
// @icon         https://raw.githubusercontent.com/nvbangg/CodePTIT_Copier/main/src/icon.png
// @grant        GM_registerMenuCommand
// @run-at       document-start
// @license      MIT
// ==/UserScript==

//! 📌 Nên Dùng bản extension để có đầy đủ tính năng, tùy chỉnh settings:
//! https://chromewebstore.google.com/detail/codeptit-copier/ncckkgpgiplcmbmobjlffkbaaklohhbo

//! 🌐 Xem hướng dẫn chi tiết tại:
//! 🏠 Homepage: https://github.com/nvbangg/CodePTIT_Copier

(() => {
  "use strict";
  const WORD_SEPARATOR = "";
  const ICONS = {
    copy: '<svg width="25" height="25" viewBox="0 0 24 24" fill="none" stroke="white" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M9 3h10a2 2 0 0 1 2 2v10"/><rect x="3" y="8" width="13" height="13" rx="2"/></svg>',
    check:
      '<svg width="25" height="25" 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"/></svg>',
    rowCopy:
      '<svg width="25" height="25" viewBox="0 0 24 24" fill="none" stroke="white" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M9 3h10a2 2 0 0 1 2 2v10"/><rect x="3" y="8" width="13" height="13" rx="2"/><path d="M7 13h7"/><path d="M7 17h6"/></svg>',
  };

  const addStyles = () => {
    const style = document.createElement("style");
    style.textContent = `
  .copy-btn,.title-copy-btn,.row-copy-btn{background:rgba(30,144,255,.4);border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;width:25px;height:25px;border-radius:5px;padding:2px;position:relative;outline:none!important;user-select:none}
  .copy-btn{position:absolute;top:0;right:0}
  .title-copy-btn{margin-right:8px;top:-3px;display:inline-flex;vertical-align:middle}
  .row-copy-btn{position:absolute;left:-26px;top:0;background:rgba(255,165,0,.5)}
  .copied{background:rgba(50,205,50,1)!important}`;
    document.head.appendChild(style);
  };

  const $ = (s) => document.querySelector(s);
  const $$ = (s) => [...document.querySelectorAll(s)];
  const isBeta = () => location.pathname.includes("/beta/problems");
  const hasText = (el) => el?.textContent?.trim();
  const preventEvent = (e) => (e.preventDefault(), e.stopPropagation());

  const showCopied = (button) => {
    const originalContent = button.innerHTML;
    button.innerHTML = ICONS.check;
    button.classList.add("copied");
    setTimeout(() => {
      button.innerHTML = originalContent;
      button.classList.remove("copied");
    }, 800);
  };

  const getTestcase = (cell) =>
    (cell.innerText ?? "")
      .replace(
        /[\u00A0\u1680\u180E\u2000-\u200B\u202F\u205F\u3000\uFEFF]/g,
        " "
      )
      .trimEnd();

  const copy = (text, button) => (
    navigator.clipboard.writeText(text), showCopied(button)
  );

  const copyRow = (row, button) => {
    const cells = row.querySelectorAll("td");
    if (cells.length < 2) return;
    const [input, output] = [getTestcase(cells[0]), getTestcase(cells[1])];
    input.trim() && navigator.clipboard.writeText(input);
    setTimeout(
      () => output.trim() && navigator.clipboard.writeText(output),
      400
    );
    showCopied(button);
  };

  const formatTitle = (title) =>
    !title
      ? ""
      : title
          .normalize("NFD")
          .replace(/[\u0300-\u036f]|[đĐ]/g, (m) =>
            m === "đ" ? "d" : m === "Đ" ? "D" : ""
          )
          .replace(/[^A-Za-z0-9]+/g, " ")
          .trim()
          .replace(/\S+/g, (w) => w[0].toUpperCase() + w.slice(1).toLowerCase())
          .replace(/ /g, WORD_SEPARATOR);

  const addCellBtn = (cell) => {
    if (!hasText(cell) || cell.dataset.copyAdded) return;
    window.getComputedStyle(cell).position === "static" &&
      (cell.style.position = "relative");
    cell.dataset.copyAdded = "true";
    const btn = document.createElement("button");
    btn.className = "copy-btn";
    btn.innerHTML = ICONS.copy;
    btn.addEventListener(
      "click",
      (e) => (
        preventEvent(e),
        ((content) => content.trim() && copy(content, e.currentTarget))(
          getTestcase(cell)
        )
      )
    );
    cell.appendChild(btn);
  };

  const addRowBtn = (row) => {
    if (!row || row.dataset.rowCopyAdded) return;
    const cells = row.querySelectorAll("td");
    if (cells.length < 2 || !hasText(cells[0]) || !hasText(cells[1])) return;
    window.getComputedStyle(cells[0]).position === "static" &&
      (cells[0].style.position = "relative");
    row.dataset.rowCopyAdded = "true";
    const btn = document.createElement("button");
    btn.className = "row-copy-btn";
    btn.innerHTML = ICONS.rowCopy;
    btn.addEventListener(
      "click",
      (e) => (preventEvent(e), copyRow(row, e.currentTarget))
    );
    cells[0].appendChild(btn);
  };

  const addTitleBtn = (titleEl) => {
    if (!titleEl || titleEl.dataset.copyAdded) return;
    titleEl.dataset.copyAdded = "true";
    const btn = document.createElement("button");
    btn.className = "title-copy-btn";
    btn.innerHTML = ICONS.copy;
    btn.addEventListener(
      "click",
      (e) => (
        preventEvent(e),
        (() => {
          const code = (location.pathname.split("/").pop() || "").trim();
          const titleText = (titleEl.textContent || "").trim();
          const joiner = WORD_SEPARATOR || "_";
          const name = [code, formatTitle(titleText)]
            .filter(Boolean)
            .join(joiner);
          name && copy(name, e.currentTarget);
        })()
      )
    );
    titleEl.insertBefore(btn, titleEl.firstChild);
  };

  const processTables = (tables) => {
    tables.forEach((t) => {
      t.querySelectorAll("tbody p").forEach(
        (p) => (p.outerHTML = `<div>${p.innerHTML}</div>`)
      );
      t.querySelectorAll("tr:not(:first-child)").forEach((row) => {
        row.querySelectorAll("td").forEach(addCellBtn);
        addRowBtn(row);
      });
    });
  };

  const processLegacyPage = () => {
    if (!/\/student\/question\/[A-Za-z0-9_]+/.test(location.pathname)) return;
    const container = $(".submit__des");
    if (!container) return;
    addTitleBtn($(".submit__nav p span a.link--red"));
    const tables = [...container.querySelectorAll("table")];
    processTables(tables);
  };

  const processBetaPage = () => {
    if (!/\/beta\/problems\/[A-Za-z0-9_]+/.test(location.pathname)) return;
    addTitleBtn($$("h2").find(hasText));
    processTables($$("table"));
  };

  const cleanup = () => {
    $$(".copy-btn, .title-copy-btn, .row-copy-btn").forEach((btn) =>
      btn.remove()
    );
    $$("[data-copy-added], [data-row-copy-added]").forEach(
      (el) => (
        el.removeAttribute("data-copy-added"),
        el.removeAttribute("data-row-copy-added")
      )
    );
  };

  const process = () => (
    cleanup(), isBeta() ? processBetaPage() : processLegacyPage()
  );

  let observerTimer;
  const observer = new MutationObserver(() => {
    clearTimeout(observerTimer);
    observerTimer = setTimeout(() => {
      observer.lastUrl !== location.href
        ? ((observer.lastUrl = location.href), process())
        : (isBeta() ? processBetaPage : processLegacyPage)();
    }, 500);
  });
  observer.lastUrl = location.href;

  const start = () => {
    addStyles();
    try {
      GM_registerMenuCommand("🏠 GitHub Homepage", () => {
        window.open("https://github.com/nvbangg/CodePTIT_Copier", "_blank");
      });
      GM_registerMenuCommand("🌐 View in Chrome Web Store", () => {
        window.open(
          "https://chromewebstore.google.com/detail/codeptit-copier/ncckkgpgiplcmbmobjlffkbaaklohhbo",
          "_blank"
        );
      });
    } catch {}
    observer.observe(document.documentElement, {
      childList: true,
      subtree: true,
    });
    process();
  };

  document.readyState !== "loading"
    ? start()
    : document.addEventListener("DOMContentLoaded", start);
})();