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index.js
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index.js
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window.onload = function () {
console.log("document loaded");
const library = [];
function Book(author, title, pages, image = null) {
this.id = Date.now();
this.author = author;
this.title = title;
this.pages = pages;
this.image =
image || "https://upload.wikimedia.org/wikipedia/commons/3/39/Book.svg";
}
function isNotEmptyString(str) {
return str.trim() !== "";
}
function addNewBook(book) {
if (Array.isArray(book)) {
library.push(...book);
} else {
library.push(book);
}
}
function injectBooksData() {
const list = document.querySelector(".list");
list.innerHTML = "";
for (const [k, v] of library.entries()) {
const item = document.createElement("li");
const img = document.createElement("img");
const menu = document.createElement("ul");
const bookTitle = document.createElement("p");
const bookAuthor = document.createElement("p");
img.classList.add("image");
img.src = v.image;
img.id = k;
bookTitle.textContent = v.title;
bookTitle.classList.add("title_book");
bookAuthor.textContent = v.author;
bookAuthor.classList.add("author_book");
list.style.justifyContent = "flex-start";
item.appendChild(img);
item.appendChild(bookTitle);
item.appendChild(bookAuthor);
list.appendChild(item);
item.appendChild(menu);
const rect = img.getBoundingClientRect();
menu.style.position = "absolute";
menu.style.width = `${rect.width}px`;
menu.style.height = `0px`;
menu.style.top = `${rect.top}px`;
menu.style.left = `${rect.left}px`;
menu.style.backgroundColor = "rgba(0, 0, 0, 0.9)";
menu.style.transition = "height 0.3s ease-in-out";
menu.style.display = "flex";
menu.style.flexDirection = "column";
menu.style.justifyContent = "center";
menu.style.alignItems = "center";
const pages = document.createElement("p");
pages.textContent = `Total Pages ${v.pages}`;
pages.style.display = "none";
pages.style.color = "white";
pages.style.textAlign = "center";
if (v.id) {
const delete_book = document.createElement("button");
delete_book.classList.add("btn_delete");
delete_book.style.display = "none";
delete_book.value = "Delete";
delete_book.id = v.id;
menu.appendChild(delete_book);
}
menu.appendChild(pages);
}
}
function injectBooksDataByFilter(search) {
const list = document.querySelector(".list");
list.innerHTML = "";
for (const [k, v] of library.entries()) {
const matchTitle = v.title.toLowerCase().includes(search.toLowerCase());
const matchAuthor = v.author.toLowerCase().includes(search.toLowerCase());
if (matchTitle || matchAuthor) {
const item = document.createElement("li");
const menu = document.createElement("ul");
const img = document.createElement("img");
const bookTitle = document.createElement("p");
const bookAuthor = document.createElement("p");
img.classList.add("image");
img.src = v.image;
img.id = k;
bookTitle.textContent = v.title;
bookTitle.classList.add("title_book");
bookAuthor.textContent = v.author;
bookAuthor.classList.add("author_book");
list.style.justifyContent = "center";
item.appendChild(img);
item.appendChild(bookTitle);
item.appendChild(bookAuthor);
list.appendChild(item);
item.appendChild(menu);
const rect = img.getBoundingClientRect();
menu.style.position = "absolute";
menu.style.width = `${rect.width}px`;
menu.style.height = `0px`;
menu.style.top = `${rect.top}px`;
menu.style.left = `${rect.left}px`;
menu.style.backgroundColor = "rgba(0, 0, 0, 0.9)";
menu.style.transition = "height 0.3s ease-in-out";
menu.style.display = "flex";
menu.style.flexDirection = "column";
menu.style.justifyContent = "center";
menu.style.alignItems = "center";
// menu.style.cursor = "pointer";
const pages = document.createElement("p");
pages.textContent = `Total Pages ${v.pages}`;
pages.style.display = "none";
pages.style.color = "white";
pages.style.textAlign = "center";
if (v.id) {
const delete_book = document.createElement("button");
delete_book.classList.add("btn_delete");
delete_book.style.display = "none";
delete_book.value = "Delete";
delete_book.id = v.id;
menu.appendChild(delete_book);
}
menu.appendChild(pages);
item.addEventListener("mouseover", () => {
menu.style.height = `${rect.height}px`;
pages.style.display = "block";
});
item.addEventListener("mouseleave", () => {
menu.style.height = `0px`;
pages.style.display = "none";
});
}
}
addMenuEventTransition();
}
function addMenuEventTransition() {
const items = document.querySelectorAll(".list li");
items.forEach((item) => {
const img = item.querySelector(".image");
const menu = item.querySelector("ul");
const rect = img.getBoundingClientRect();
const delete_btn = item.querySelector(".btn_delete");
menu.style.position = "absolute";
menu.style.width = `${rect.width}px`;
menu.style.height = `0px`;
menu.style.top = `${rect.top}px`;
menu.style.left = `${rect.left}px`;
menu.style.backgroundColor = "rgba(0, 0, 0, 0.9)";
menu.style.transition = "height 0.3s ease-in-out";
menu.style.display = "flex";
menu.style.flexDirection = "column";
menu.style.justifyContent = "center";
menu.style.alignItems = "center";
if (delete_btn) {
delete_btn.style.display = "none";
delete_btn.textContent = "Delete";
}
item.addEventListener("mouseover", () => {
menu.style.height = `${rect.height}px`;
menu.querySelector("p").style.display = "block";
if (delete_btn) {
delete_btn.style.display = "block";
}
});
item.addEventListener("mouseleave", () => {
menu.style.height = `0px`;
menu.querySelector("p").style.display = "none";
if (delete_btn) {
delete_btn.style.display = "none";
}
});
if (delete_btn) {
delete_btn.addEventListener("click", () => {
removeBook(delete_btn.id);
});
}
});
}
function removeBook(id) {
const existingBooks = JSON.parse(localStorage.getItem("books")) || [];
const filteredBooks = existingBooks.filter((book) => book.id != id);
localStorage.setItem("books", JSON.stringify(filteredBooks));
location.reload();
}
// On DOM loaded we inject the library data from data/books.json.
fetch("./data/books.json")
.then((response) => response.json())
.then((data) => {
addNewBook(data);
injectBooksData();
setTimeout(addMenuEventTransition, 100);
});
const booksData = localStorage.getItem("books");
if (booksData) {
addNewBook(JSON.parse(booksData));
injectBooksData();
setTimeout(addMenuEventTransition, 100);
}
// Inject books to the list container (UL/LI):
function showAllBooks() {
if (library.length <= 0) {
return;
}
injectBooksData();
addMenuEventTransition();
}
const dialog = document.querySelector("dialog");
const showButton = document.querySelector(".btn_showdialog");
const closeButton = document.querySelector("dialog > button");
const btn_search = document.querySelector(".btn_search");
const onSubmit = document.getElementById("submit");
const search = document.getElementById("search");
search.value = "";
// Hook the event when we resize the webpage to avoid bad anchor :
window.addEventListener("resize", () => addMenuEventTransition());
// Clear the input if it's empty :
search.addEventListener("keydown", (e) => {
const btn_clear = document.querySelector(".btn_clear");
const key = e.keyCode || e.charCode;
if (key == 13) {
e.stopPropagation();
e.preventDefault();
}
if (btn_clear != null && !isNotEmptyString(search.value)) {
injectBooksData();
addMenuEventTransition();
btn_clear.remove();
}
});
// Btn Search Input :
btn_search.addEventListener("click", (e) => {
const search_form = document.querySelector(".search_form");
let btn_clear = document.querySelector(".btn_clear");
if (btn_clear == null) {
if (!isNotEmptyString(search.value)) {
return (search.value = "");
}
btn_clear = document.querySelector(".btn_clear");
const div = document.createElement("div");
div.textContent = "X";
div.classList.add("btn_clear");
search_form.append(div);
// Filter here the books :
injectBooksDataByFilter(search.value);
// On btn clear clicked we clear the search input value :
div.addEventListener("click", () => {
search.value = " ";
div.remove();
injectBooksData();
addMenuEventTransition();
});
}
});
// Book Form :
onSubmit.addEventListener("submit", (e) => {
// avoid sending event to not refresh the page :
e.preventDefault();
const input_author = document.getElementById("author");
const input_title = document.getElementById("title");
const input_pages = document.getElementById("pages");
const input_image = document.getElementById("image");
// for the sake of better readability :
const { value: author } = input_author;
const { value: title } = input_title;
const { value: pages } = input_pages;
const { value: image } = input_image;
const isValidImg = /\.(jpe?g|png)$/i;
// making sure that we don't send empty data :
const doesInputAreNotValid =
!isNotEmptyString(author) || !isNotEmptyString(title) || pages <= 0;
if (doesInputAreNotValid) {
return alert(
"Please Fill all the fields to be able to submit a new book."
);
}
// Making sure the image link is valid.
if (image.length >= 1 && !isValidImg.test(image)) {
return alert("Please set a valid image link or let it empty.");
}
// create new book :
const newBook = new Book(author, title, pages, image);
addNewBook(newBook);
// Show all the books from library :
showAllBooks();
// clear the fields :
input_author.value = "";
input_title.value = "";
input_pages.value = 0;
input_image.value = "";
dialog.close();
let existingBooks = JSON.parse(localStorage.getItem("books")) || [];
existingBooks.push(newBook);
localStorage.setItem("books", JSON.stringify(existingBooks));
location.reload();
});
showButton.addEventListener("click", () => dialog.showModal());
closeButton.addEventListener("click", () => dialog.close());
};