hiep200311
9f7824825c
Co-locate each feature's CSS and JS alongside its HTML template. Remove the standalone static/ directory entirely.
754 lines
24 KiB
JavaScript
754 lines
24 KiB
JavaScript
let currentResults = null;
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let searchInProgress = false;
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let downloadInProgress = false;
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let loadMoreInProgress = false;
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let selectedBooks = new Set();
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let currentQuery = "";
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let currentPage = 1;
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let totalPagesAvailable = 0;
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let headlessMode = true;
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let totalBooksCount = 0;
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async function searchBooks(resetResults = true) {
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if (searchInProgress) {
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return;
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}
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const query = document.getElementById("query").value.trim();
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const headless = document.getElementById("headless").checked;
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headlessMode = headless;
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currentQuery = query;
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if (!query) {
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showError("Vui lòng nhập từ khóa tìm kiếm");
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return;
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}
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if (query.length < 2) {
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showError("Từ khóa phải có ít nhất 2 ký tự");
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return;
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}
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searchInProgress = true;
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if (resetResults) {
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selectedBooks.clear();
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currentPage = 1;
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currentResults = null;
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}
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document.getElementById("loadingIndicator").style.display = "block";
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document.getElementById("loadingMessage").textContent = resetResults
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? "Đang tìm kiếm sách..."
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: `Đang tải trang ${currentPage + 1}...`;
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document.getElementById("errorMessage").style.display = "none";
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if (resetResults) {
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document.getElementById("resultsContent").innerHTML = "";
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}
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document.getElementById("progressText").textContent =
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"Đang khởi tạo...";
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const searchBtn = document.getElementById("searchBtn");
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searchBtn.disabled = true;
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searchBtn.textContent = resetResults ? "Đang tìm..." : "Đang tải...";
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try {
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const nextPage = resetResults ? 1 : currentPage + 1;
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const response = await fetch("/scraperZLibrary/api/search", {
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method: "POST",
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headers: {
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"Content-Type": "application/json",
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},
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body: JSON.stringify({
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query: query,
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page: nextPage,
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headless: headless,
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}),
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});
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const data = await response.json();
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if (data.success) {
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if (resetResults) {
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currentResults = data;
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currentPage = data.current_page || 1;
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totalPagesAvailable = data.total_pages || 1;
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totalBooksCount = data.total_books_count || data.books.length;
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displayResults(data);
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} else {
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// Merge new books with existing results
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if (currentResults) {
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currentResults.books = [...currentResults.books, ...data.books];
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currentResults.total_count = currentResults.books.length;
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currentPage = data.current_page;
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totalPagesAvailable = data.total_pages;
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totalBooksCount = data.total_books_count || totalBooksCount;
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appendBooksToGrid(
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data.books,
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currentResults.books.length - data.books.length,
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);
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updateStatsBar(currentResults);
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updateResultCount();
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updateSelectionInfo();
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} else {
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currentResults = data;
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currentPage = data.current_page || 1;
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totalPagesAvailable = data.total_pages || 1;
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totalBooksCount = data.total_books_count || data.books.length;
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displayResults(data);
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}
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}
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} else {
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showError(data.error || "Có lỗi xảy ra khi tìm kiếm");
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}
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} catch (error) {
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console.error("Search error:", error);
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showError("Không thể kết nối đến máy chủ.");
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} finally {
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searchInProgress = false;
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loadMoreInProgress = false;
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document.getElementById("loadingIndicator").style.display = "none";
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searchBtn.disabled = false;
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searchBtn.textContent = "Tìm kiếm";
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}
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}
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async function loadMoreBooks() {
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if (loadMoreInProgress || searchInProgress) {
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return;
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}
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if (currentPage >= totalPagesAvailable) {
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alert("Đã tải hết tất cả các trang!");
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return;
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}
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loadMoreInProgress = true;
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await searchBooks(false);
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}
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function appendBooksToGrid(newBooks, startIndex) {
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const booksGrid = document.querySelector(".books-grid");
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if (!booksGrid) return;
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let html = "";
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newBooks.forEach((book, idx) => {
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const index = startIndex + idx;
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const bookId = `book-${index}`;
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html += `
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<div class="book-card" id="${bookId}">
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<input
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type="checkbox"
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class="book-checkbox"
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data-book-index="${index}"
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onchange="toggleBookSelection(${index}, this.checked)"
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>
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<div class="book-title">${index + 1}. ${escapeHtml(book.title)}</div>
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<div class="book-authors">${escapeHtml(book.authors.join(", ") || "Không rõ")}</div>
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<div class="book-details">
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<div class="detail-item">
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<div class="detail-label">NXB</div>
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<div class="detail-value">${escapeHtml(book.publisher)}</div>
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</div>
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<div class="detail-item">
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<div class="detail-label">Năm</div>
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<div class="detail-value">${escapeHtml(book.year)}</div>
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</div>
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<div class="detail-item">
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<div class="detail-label">Số trang</div>
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<div class="detail-value">${escapeHtml(book.pages)}</div>
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</div>
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<div class="detail-item">
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<div class="detail-label">Ngôn ngữ</div>
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<div class="detail-value">${escapeHtml(book.language)}</div>
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</div>
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<div class="detail-item">
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<div class="detail-label">Định dạng</div>
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<div class="detail-value">${escapeHtml(book.file)}</div>
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</div>
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</div>
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${
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book.link !== "N/A"
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? `<a href="${escapeHtml(book.link)}" target="_blank" class="book-link" rel="noopener noreferrer">Xem sách →</a>`
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: '<span style="color: #999; font-size: 0.85em;">Không có liên kết</span>'
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}
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</div>
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`;
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});
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booksGrid.insertAdjacentHTML("beforeend", html);
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// Update load more button
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updateLoadMoreButton();
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}
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function updateResultCount() {
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const resultHeader = document.querySelector("#resultCountHeader");
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if (resultHeader) {
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resultHeader.textContent = `Kết quả (${currentResults.books.length} sách đã tải / ${totalBooksCount} tổng cộng)`;
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}
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}
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function updateStatsBar(data) {
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const statsBar = document.querySelector(".stats-bar");
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if (statsBar) {
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statsBar.innerHTML = `
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<div class="stat-item">
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<div class="stat-label">Tổng số sách</div>
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<div class="stat-value">${totalBooksCount}</div>
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</div>
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<div class="stat-item">
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<div class="stat-label">Từ khóa</div>
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<div class="stat-value" style="font-size: 1.5em;">"${escapeHtml(data.query)}"</div>
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</div>
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<div class="stat-item">
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<div class="stat-label">Trang hiện tại</div>
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<div class="stat-value" style="font-size: 1.5em;">${currentPage} / ${totalPagesAvailable}</div>
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</div>
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`;
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}
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}
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function updateLoadMoreButton() {
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const loadMoreContainer = document.getElementById("loadMoreContainer");
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if (loadMoreContainer) {
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if (currentPage >= totalPagesAvailable) {
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loadMoreContainer.innerHTML = `
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<button class="btn btn-secondary load-more-btn" disabled>
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✅ Đã tải hết ${totalPagesAvailable} trang (${currentResults.books.length} sách)
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</button>
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`;
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} else {
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loadMoreContainer.innerHTML = `
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<button class="btn btn-secondary load-more-btn" onclick="loadMoreBooks()">
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📄 Tải thêm trang ${currentPage + 1} / ${totalPagesAvailable} (mỗi trang 50 sách)
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</button>
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`;
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}
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}
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}
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function displayResults(data) {
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const resultsDiv = document.getElementById("resultsContent");
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if (!data.books || data.books.length === 0) {
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resultsDiv.innerHTML = `
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<div class="empty-state">
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<div style="font-size: 3em; margin-bottom: 20px; font-weight: 300;">🔍</div>
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<h3>Không tìm thấy sách</h3>
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<p>Thử từ khóa khác hoặc kiểm tra lại chính tả</p>
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<p style="margin-top: 10px; font-size: 0.9em;">Từ khóa: "${escapeHtml(data.query)}"</p>
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</div>
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`;
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return;
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}
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currentPage = data.current_page || 1;
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totalPagesAvailable = data.total_pages || 1;
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totalBooksCount = data.total_books_count || data.books.length;
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let html = `
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<div class="stats-bar">
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<div class="stat-item">
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<div class="stat-label">Tổng số sách</div>
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<div class="stat-value">${totalBooksCount}</div>
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</div>
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<div class="stat-item">
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<div class="stat-label">Từ khóa</div>
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<div class="stat-value" style="font-size: 1.5em;">"${escapeHtml(data.query)}"</div>
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</div>
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<div class="stat-item">
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<div class="stat-label">Trang hiện tại</div>
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<div class="stat-value" style="font-size: 1.5em;">${currentPage} / ${totalPagesAvailable}</div>
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</div>
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</div>
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<div class="download-section">
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<button class="btn btn-secondary" onclick="downloadResults('txt')">
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↓ Tải TXT
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</button>
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<button class="btn btn-secondary" onclick="downloadResults('json')">
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↓ Tải JSON
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</button>
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<button class="btn btn-secondary" onclick="copyResultsToClipboard()">
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📋 Sao chép
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</button>
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<button class="btn btn-download" onclick="downloadSelectedBooks()">
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📦 Tải sách đã chọn
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</button>
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</div>
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<div class="selection-bar">
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<div class="selection-controls">
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<label>
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<input type="checkbox" id="selectAllCheckbox" onchange="toggleSelectAll(this.checked)">
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Chọn tất cả sách đã tải
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</label>
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<button class="btn btn-secondary" style="padding: 6px 16px; font-size: 12px;" onclick="clearSelection()">
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Bỏ chọn
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</button>
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</div>
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<div class="selection-info" id="selectionInfo">
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Đã chọn 0 sách
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</div>
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</div>
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<h3 id="resultCountHeader" style="font-weight: 400; margin: 24px 0 16px 0; text-transform: uppercase; font-size: 0.9em; letter-spacing: 0.5px;">
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Kết quả (${data.books.length} sách đã tải / ${totalBooksCount} tổng cộng)
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</h3>
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<div class="books-grid">
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`;
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data.books.forEach((book, index) => {
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const bookId = `book-${index}`;
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html += `
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<div class="book-card" id="${bookId}">
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<input
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type="checkbox"
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class="book-checkbox"
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data-book-index="${index}"
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onchange="toggleBookSelection(${index}, this.checked)"
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>
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<div class="book-title">${index + 1}. ${escapeHtml(book.title)}</div>
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<div class="book-authors">${escapeHtml(book.authors.join(", ") || "Không rõ")}</div>
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<div class="book-details">
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<div class="detail-item">
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<div class="detail-label">NXB</div>
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<div class="detail-value">${escapeHtml(book.publisher)}</div>
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</div>
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<div class="detail-item">
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<div class="detail-label">Năm</div>
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<div class="detail-value">${escapeHtml(book.year)}</div>
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</div>
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<div class="detail-item">
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<div class="detail-label">Số trang</div>
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<div class="detail-value">${escapeHtml(book.pages)}</div>
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</div>
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<div class="detail-item">
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<div class="detail-label">Ngôn ngữ</div>
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<div class="detail-value">${escapeHtml(book.language)}</div>
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</div>
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<div class="detail-item">
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<div class="detail-label">Định dạng</div>
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<div class="detail-value">${escapeHtml(book.file)}</div>
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</div>
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</div>
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${
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book.link !== "N/A"
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? `<a href="${escapeHtml(book.link)}" target="_blank" class="book-link" rel="noopener noreferrer">Xem sách →</a>`
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: '<span style="color: #999; font-size: 0.85em;">Không có liên kết</span>'
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}
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</div>
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`;
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});
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html += "</div>";
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// Add load more button
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html += `<div id="loadMoreContainer" class="load-more-container">`;
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if (currentPage < totalPagesAvailable) {
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html += `
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<button class="btn btn-secondary load-more-btn" onclick="loadMoreBooks()">
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📄 Tải thêm trang ${currentPage + 1} / ${totalPagesAvailable} (mỗi trang 50 sách)
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</button>
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`;
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} else {
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html += `
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<button class="btn btn-secondary load-more-btn" disabled>
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✅ Đã tải hết ${totalPagesAvailable} trang (${data.books.length} sách)
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</button>
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`;
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}
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html += `</div>`;
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// Add statistics if available
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if (data.statistics && Object.keys(data.statistics).length > 0) {
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html += '<div class="stats-detail">';
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html += "<h3>Thống kê</h3>";
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html += '<div class="stats-bar" style="border-bottom: none;">';
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const stats = data.statistics;
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if (stats.languages && Object.keys(stats.languages).length > 0) {
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const langHtml = Object.entries(stats.languages)
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.sort((a, b) => b[1] - a[1])
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.slice(0, 5)
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.map(([lang, count]) => {
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const percentage = ((count / totalBooksCount) * 100).toFixed(1);
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return `<div style="margin-bottom: 4px;">${escapeHtml(lang)}: ${count} (${percentage}%)</div>`;
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})
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.join("");
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html += `
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<div class="stat-item">
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<div class="stat-label">Ngôn ngữ phổ biến</div>
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<div class="stat-value" style="font-size: 0.9em; font-weight: 400;">${langHtml}</div>
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</div>
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`;
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}
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if (stats.formats && Object.keys(stats.formats).length > 0) {
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const formatHtml = Object.entries(stats.formats)
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.sort((a, b) => b[1] - a[1])
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.slice(0, 5)
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.map(([fmt, count]) => {
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const percentage = ((count / totalBooksCount) * 100).toFixed(1);
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return `<div style="margin-bottom: 4px;">${escapeHtml(fmt)}: ${count} (${percentage}%)</div>`;
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})
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.join("");
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html += `
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<div class="stat-item">
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<div class="stat-label">Định dạng phổ biến</div>
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<div class="stat-value" style="font-size: 0.9em; font-weight: 400;">${formatHtml}</div>
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</div>
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`;
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}
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if (stats.years && Object.keys(stats.years).length > 0) {
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const yearHtml = Object.entries(stats.years)
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.sort((a, b) => parseInt(b[0]) - parseInt(a[0]))
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.slice(0, 5)
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.map(
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([year, count]) =>
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`<div style="margin-bottom: 4px;">${escapeHtml(year)}: ${count} sách</div>`,
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)
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.join("");
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html += `
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<div class="stat-item">
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<div class="stat-label">Năm xuất bản gần đây</div>
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<div class="stat-value" style="font-size: 0.9em; font-weight: 400;">${yearHtml}</div>
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</div>
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`;
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}
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html += "</div>";
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html += "</div>";
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}
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resultsDiv.innerHTML = html;
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updateSelectionInfo();
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resultsDiv.scrollIntoView({ behavior: "smooth", block: "nearest" });
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}
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function toggleBookSelection(index, checked) {
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if (checked) {
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selectedBooks.add(index);
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const card = document.getElementById(`book-${index}`);
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if (card) card.classList.add("selected");
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} else {
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selectedBooks.delete(index);
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const card = document.getElementById(`book-${index}`);
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if (card) card.classList.remove("selected");
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}
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updateSelectionInfo();
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updateSelectAllCheckbox();
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}
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function toggleSelectAll(checked) {
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if (!currentResults || !currentResults.books) return;
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if (checked) {
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currentResults.books.forEach((_, index) => {
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selectedBooks.add(index);
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const card = document.getElementById(`book-${index}`);
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if (card) card.classList.add("selected");
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const checkbox = document.querySelector(
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`[data-book-index="${index}"]`,
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);
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if (checkbox) checkbox.checked = true;
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});
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} else {
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selectedBooks.clear();
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document
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.querySelectorAll(".book-card")
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.forEach((card) => card.classList.remove("selected"));
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document
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.querySelectorAll(".book-checkbox")
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.forEach((cb) => (cb.checked = false));
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}
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updateSelectionInfo();
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}
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function clearSelection() {
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selectedBooks.clear();
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document
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.querySelectorAll(".book-card")
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.forEach((card) => card.classList.remove("selected"));
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document
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.querySelectorAll(".book-checkbox")
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.forEach((cb) => (cb.checked = false));
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const selectAllCheckbox = document.getElementById("selectAllCheckbox");
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if (selectAllCheckbox) selectAllCheckbox.checked = false;
|
|
updateSelectionInfo();
|
|
}
|
|
|
|
function updateSelectionInfo() {
|
|
const count = selectedBooks.size;
|
|
const infoElement = document.getElementById("selectionInfo");
|
|
if (infoElement) {
|
|
infoElement.textContent = `Đã chọn ${count} / ${currentResults?.books.length || 0} sách`;
|
|
}
|
|
}
|
|
|
|
function updateSelectAllCheckbox() {
|
|
if (!currentResults || !currentResults.books) return;
|
|
const selectAll = document.getElementById("selectAllCheckbox");
|
|
if (selectAll) {
|
|
selectAll.checked =
|
|
selectedBooks.size === currentResults.books.length &&
|
|
currentResults.books.length > 0;
|
|
}
|
|
}
|
|
|
|
async function downloadSelectedBooks() {
|
|
if (downloadInProgress) {
|
|
alert("Đang tải sách, vui lòng đợi...");
|
|
return;
|
|
}
|
|
if (!currentResults || !currentResults.books) {
|
|
alert("Không có sách để tải");
|
|
return;
|
|
}
|
|
if (selectedBooks.size === 0) {
|
|
alert("Vui lòng chọn ít nhất một cuốn sách");
|
|
return;
|
|
}
|
|
|
|
const selectedBooksList = Array.from(selectedBooks)
|
|
.sort((a, b) => a - b)
|
|
.map((index) => currentResults.books[index]);
|
|
|
|
downloadInProgress = true;
|
|
const headless = document.getElementById("headless").checked;
|
|
|
|
// Show progress UI
|
|
document.getElementById("loadingIndicator").style.display = "block";
|
|
document.getElementById("loadingMessage").textContent =
|
|
`Đang tải ${selectedBooksList.length} sách...`;
|
|
|
|
let successCount = 0;
|
|
let failedCount = 0;
|
|
|
|
try {
|
|
// POST to get the SSE stream
|
|
const response = await fetch("/scraperZLibrary/api/download/stream", {
|
|
method: "POST",
|
|
headers: { "Content-Type": "application/json" },
|
|
body: JSON.stringify({
|
|
books: selectedBooksList,
|
|
query: currentResults.query,
|
|
headless: headless,
|
|
}),
|
|
});
|
|
|
|
if (!response.ok) throw new Error("Không thể bắt đầu tải xuống");
|
|
|
|
const reader = response.body.getReader();
|
|
const decoder = new TextDecoder();
|
|
let buffer = "";
|
|
|
|
while (true) {
|
|
const { done, value } = await reader.read();
|
|
if (done) break;
|
|
|
|
buffer += decoder.decode(value, { stream: true });
|
|
const lines = buffer.split("\n\n");
|
|
buffer = lines.pop(); // keep incomplete chunk
|
|
|
|
for (const chunk of lines) {
|
|
const line = chunk.replace(/^data:\s*/, "").trim();
|
|
if (!line) continue;
|
|
|
|
let event;
|
|
try {
|
|
event = JSON.parse(line);
|
|
} catch {
|
|
continue;
|
|
}
|
|
|
|
if (event.type === "progress") {
|
|
document.getElementById("loadingMessage").textContent =
|
|
`[${event.index}/${event.total}] Đang tải: ${event.title.substring(0, 50)}...`;
|
|
document.getElementById("progressText").textContent =
|
|
`Đã xong: ${successCount} ✓ Lỗi: ${failedCount} ✗`;
|
|
} else if (event.type === "ready") {
|
|
successCount++;
|
|
document.getElementById("progressText").textContent =
|
|
`Đã xong: ${successCount} ✓ Lỗi: ${failedCount} ✗`;
|
|
|
|
// Trigger instant download via hidden <a>
|
|
const a = document.createElement("a");
|
|
a.href = `/scraperZLibrary/api/download/file/${event.token}`;
|
|
a.download = event.filename;
|
|
document.body.appendChild(a);
|
|
a.click();
|
|
document.body.removeChild(a);
|
|
|
|
// Small gap so the browser doesn't block rapid-fire downloads
|
|
await new Promise((r) => setTimeout(r, 600));
|
|
} else if (event.type === "error") {
|
|
failedCount++;
|
|
console.warn(`Failed: ${event.title} — ${event.message}`);
|
|
document.getElementById("progressText").textContent =
|
|
`Đã xong: ${successCount} ✓ Lỗi: ${failedCount} ✗`;
|
|
} else if (event.type === "done") {
|
|
document.getElementById("loadingMessage").textContent =
|
|
`Hoàn tất! ${event.success} thành công, ${event.failed} thất bại`;
|
|
}
|
|
}
|
|
}
|
|
} catch (error) {
|
|
console.error("Stream download error:", error);
|
|
alert("Không thể tải sách: " + error.message);
|
|
} finally {
|
|
downloadInProgress = false;
|
|
setTimeout(() => {
|
|
document.getElementById("loadingIndicator").style.display = "none";
|
|
}, 2000);
|
|
}
|
|
}
|
|
|
|
function showError(message) {
|
|
const errorDiv = document.getElementById("errorMessage");
|
|
errorDiv.textContent = message;
|
|
errorDiv.style.display = "block";
|
|
|
|
document.getElementById("resultsContent").innerHTML = `
|
|
<div class="empty-state">
|
|
<div style="font-size: 3em; margin-bottom: 20px; font-weight: 300;">✕</div>
|
|
<h3>Tìm kiếm thất bại</h3>
|
|
<p>${escapeHtml(message)}</p>
|
|
<p style="margin-top: 20px; font-size: 0.9em;">Vui lòng thử lại với từ khóa khác.</p>
|
|
</div>
|
|
`;
|
|
|
|
errorDiv.scrollIntoView({ behavior: "smooth", block: "nearest" });
|
|
}
|
|
|
|
function downloadResults(format) {
|
|
if (!currentResults) {
|
|
alert("Không có kết quả để tải xuống");
|
|
return;
|
|
}
|
|
|
|
fetch(`/scraperZLibrary/api/download/${format}`, {
|
|
method: "POST",
|
|
headers: {
|
|
"Content-Type": "application/json",
|
|
},
|
|
body: JSON.stringify(currentResults),
|
|
})
|
|
.then((response) => {
|
|
if (!response.ok) {
|
|
throw new Error("Tải xuống thất bại");
|
|
}
|
|
return response.blob();
|
|
})
|
|
.then((blob) => {
|
|
const url = window.URL.createObjectURL(blob);
|
|
const a = document.createElement("a");
|
|
a.href = url;
|
|
a.download = `zlib_${currentResults.query.replace(/\s+/g, "_")}_ket_qua.${format}`;
|
|
document.body.appendChild(a);
|
|
a.click();
|
|
window.URL.revokeObjectURL(url);
|
|
document.body.removeChild(a);
|
|
})
|
|
.catch((error) => {
|
|
console.error("Download error:", error);
|
|
alert("Không thể tải file: " + error.message);
|
|
});
|
|
}
|
|
|
|
function copyResultsToClipboard() {
|
|
if (!currentResults) {
|
|
alert("Không có kết quả để sao chép");
|
|
return;
|
|
}
|
|
|
|
let summary = `KẾT QUẢ TÌM KIẾM Z-LIBRARY\n`;
|
|
summary += `========================\n`;
|
|
summary += `Từ khóa: ${currentResults.query}\n`;
|
|
summary += `Tổng số sách: ${totalBooksCount}\n`;
|
|
summary += `Đã tải: ${currentResults.books.length} sách\n`;
|
|
summary += `========================\n\n`;
|
|
|
|
currentResults.books.slice(0, 20).forEach((book, index) => {
|
|
summary += `${index + 1}. ${book.title}\n`;
|
|
summary += ` Tác giả: ${book.authors.join(", ")}\n`;
|
|
summary += ` Năm: ${book.year} | Ngôn ngữ: ${book.language} | Định dạng: ${book.file}\n`;
|
|
summary += ` Link: ${book.link}\n\n`;
|
|
});
|
|
|
|
if (currentResults.books.length > 20) {
|
|
summary += `... và ${currentResults.books.length - 20} sách khác\n`;
|
|
}
|
|
|
|
navigator.clipboard
|
|
.writeText(summary)
|
|
.then(() => {
|
|
alert("Đã sao chép tóm tắt!");
|
|
})
|
|
.catch((err) => {
|
|
console.error("Failed to copy:", err);
|
|
alert("Không thể sao chép");
|
|
});
|
|
}
|
|
|
|
function escapeHtml(text) {
|
|
if (typeof text !== "string") return text;
|
|
const div = document.createElement("div");
|
|
div.textContent = text;
|
|
return div.innerHTML;
|
|
}
|
|
|
|
document
|
|
.getElementById("query")
|
|
.addEventListener("keypress", function (e) {
|
|
if (e.key === "Enter") {
|
|
searchBooks(true);
|
|
}
|
|
});
|
|
|
|
document.addEventListener("keydown", function (e) {
|
|
if ((e.ctrlKey || e.metaKey) && e.key === "k") {
|
|
e.preventDefault();
|
|
document.getElementById("query").focus();
|
|
}
|
|
});
|
|
|
|
const progressMessages = [
|
|
"Đang khởi tạo...",
|
|
"Đang kết nối Z-Library...",
|
|
"Đang lấy dữ liệu sách...",
|
|
"Đang xử lý kết quả...",
|
|
"Sắp xong...",
|
|
];
|
|
|
|
let messageIndex = 0;
|
|
const progressInterval = setInterval(() => {
|
|
if (searchInProgress || downloadInProgress) {
|
|
messageIndex = (messageIndex + 1) % progressMessages.length;
|
|
const progressElement = document.getElementById("progressText");
|
|
if (progressElement) {
|
|
progressElement.textContent = progressMessages[messageIndex];
|
|
}
|
|
}
|
|
}, 2000);
|
|
|
|
window.addEventListener("beforeunload", () => {
|
|
clearInterval(progressInterval);
|
|
});
|