Glasgow | 25-ITP-Sept | Shreef Ibrahim | Sprint 2 | Book Library

debugging/book-library/index.html

@@ -30,21 +30,9 @@ <h1>Library</h1>
     <div id="demo" class="collapse">
       <div class="form-group">
         <label for="title">Title:</label>
-        <input
-          type="title"
-          class="form-control"
-          id="title"
-          name="title"
-          required
-        />
+     <input type="text" class="form-control" id="title" name="title" required />
         <label for="author">Author: </label>
-        <input
-          type="author"
-          class="form-control"
-          id="author"
-          name="author"
-          required
-        />
+        <input type="text" class="form-control" id="author" name="author" required />
         <label for="pages">Pages:</label>
         <input
           type="number"
@@ -61,12 +49,7 @@ <h1>Library</h1>
             value=""
           />Read
         </label>
-        <input
-          type="submit"
-          value="Submit"
-          class="btn btn-primary"
-          onclick="submit();"
-        />
+        <input type="button" value="Submit" class="btn btn-primary" onclick="addBook();" />
       </div>
     </div>
 
@@ -80,15 +63,9 @@ <h1>Library</h1>
           <th></th>
         </tr>
       </thead>
-      <tbody>
-        <tr>
-          <td></td>
-          <td></td>
-          <td></td>
-          <td></td>
-          <td></td>
-        </tr>
-      </tbody>
+    <tbody>
+</tbody>
+
     </table>
 
     <script src="script.js"></script>

debugging/book-library/script.js

@@ -1,103 +1,134 @@
 let myLibrary = [];
 
-window.addEventListener("load", function (e) {
-  populateStorage();
-  render();
+window.addEventListener("load", function () {
+    populateStorage();
+    render();
 });
 
 function populateStorage() {
-  if (myLibrary.length == 0) {
-    let book1 = new Book("Robison Crusoe", "Daniel Defoe", "252", true);
-    let book2 = new Book(
-      "The Old Man and the Sea",
-      "Ernest Hemingway",
-      "127",
-      true
-    );
-    myLibrary.push(book1);
-    myLibrary.push(book2);
-    render();
-  }
+    if (myLibrary.length === 0) {
+        let book1 = new Book("Robison Crusoe", "Daniel Defoe", "252", true);
+        let book2 = new Book(
+            "The Old Man and the Sea",
+            "Ernest Hemingway",
+            "127",
+            true
+        );
+        myLibrary.push(book1);
+        myLibrary.push(book2);
+        render();
+    }
 }
 
 const title = document.getElementById("title");
 const author = document.getElementById("author");
 const pages = document.getElementById("pages");
 const check = document.getElementById("check");
 
-//check the right input from forms and if its ok -> add the new book (object in array)
-//via Book function and start render function
-function submit() {
-  if (
-    title.value == null ||
-    title.value == "" ||
-    pages.value == null ||
-    pages.value == ""
-  ) {
-    alert("Please fill all fields!");
-    return false;
-  } else {
-    let book = new Book(title.value, title.value, pages.value, check.checked);
-    library.push(book);
+// Check the input from forms and, if valid, add the new book (object in array)
+// via Book constructor and start render function
+function addBook() {
+    if (
+        title.value == null ||
+        title.value === "" ||
+        pages.value == null ||
+        pages.value === ""
+    ) {
+        showError("Please fill all fields!");
+        return false;
+    }
+
+    if (myLibrary.some(b => b.title === title.value && b.author === author.value)) {
+        showError("This book already exists!");
+        return;
+    }
+
+    if (!isNaN(title.value.trim()) || !isNaN(author.value.trim())) {
+        showError("Title and Author must be text!");
+        return;
+    }
+
+   let book = new Book(title.value, author.value, Number(pages.value), check.checked);
+    myLibrary.push(book);
     render();
-  }
 }
 
-function Book(title, author, pages, check) {
-  this.title = title;
-  this.author = author;
-  this.pages = pages;
-  this.check = check;
+// Clear any previous error messages
+document.getElementById("errorMessage").style.display = "none";
+
+function Book(title, author, pages, read) {
+    this.title = title;
+    this.author = author;
+    this.pages = pages;
+    this.read = read;
 }
 
+
 function render() {
-  let table = document.getElementById("display");
-  let rowsNumber = table.rows.length;
-  //delete old table
-  for (let n = rowsNumber - 1; n > 0; n-- {
-    table.deleteRow(n);
-  }
-  //insert updated row and cells
-  let length = myLibrary.length;
-  for (let i = 0; i < length; i++) {
-    let row = table.insertRow(1);
-    let titleCell = row.insertCell(0);
-    let authorCell = row.insertCell(1);
-    let pagesCell = row.insertCell(2);
-    let wasReadCell = row.insertCell(3);
-    let deleteCell = row.insertCell(4);
-    titleCell.innerHTML = myLibrary[i].title;
-    authorCell.innerHTML = myLibrary[i].author;
-    pagesCell.innerHTML = myLibrary[i].pages;
-
-    //add and wait for action for read/unread button
-    let changeBut = document.createElement("button");
-    changeBut.id = i;
-    changeBut.className = "btn btn-success";
-    wasReadCell.appendChild(changeBut);
-    let readStatus = "";
-    if (myLibrary[i].check == false) {
-      readStatus = "Yes";
-    } else {
-      readStatus = "No";
+    let table = document.getElementById("display");
+    let rowsNumber = table.rows.length;
+
+    // Delete old table rows
+    for (let n = rowsNumber - 1; n > 0; n--) {
+        table.deleteRow(n);
+    }
+
+    // Insert updated rows and cells
+    let length = myLibrary.length;
+    for (let i = 0; i < length; i++) {
+        let row = table.insertRow(1);
+        let titleCell = row.insertCell(0);
+        let authorCell = row.insertCell(1);
+        let pagesCell = row.insertCell(2);
+        let wasReadCell = row.insertCell(3);
+        let deleteCell = row.insertCell(4);
+
+        titleCell.innerHTML = myLibrary[i].title;
+        authorCell.innerHTML = myLibrary[i].author;
+        pagesCell.innerHTML = myLibrary[i].pages;
+
+        // Add and configure read/unread button
+        let changeBut = document.createElement("button");
+        changeBut.id = i;
+        changeBut.className = "btn btn-primary";
+        wasReadCell.appendChild(changeBut);
+
+        let readStatus = myLibrary[i].check ? "Yes" : "No";
+        changeBut.innerHTML = readStatus;
+
+        if (myLibrary[i].check) {
+            changeBut.className = "btn btn-success";
+        }
+
+        changeBut.addEventListener("click", function () {
+            myLibrary[i].check = !myLibrary[i].check;
+            render();
+        });
+
+        // Add delete button to each row
+        let delBut = document.createElement("button");
+        delBut.id = i + 5;
+        delBut.className = "btn btn-warning";
+        delBut.innerHTML = "Delete";
+        deleteCell.appendChild(delBut);
+
+       delBut.setAttribute("data-index", i);
+delBut.addEventListener("click", function () {
+    let index = this.getAttribute("data-index");
+    showError(`You've deleted title: ${myLibrary[index].title}`);
+    myLibrary.splice(index, 1);
+    render();
+});
     }
-    changeBut.innerText = readStatus;
-
-    changeBut.addEventListener("click", function () {
-      myLibrary[i].check = !myLibrary[i].check;
-      render();
-    });
-
-    //add delete button to every row and render again
-    let delButton = document.createElement("button");
-    delBut.id = i + 5;
-    deleteCell.appendChild(delBut);
-    delBut.className = "btn btn-warning";
-    delBut.innerHTML = "Delete";
-    delBut.addEventListener("clicks", function () {
-      alert(`You've deleted title: ${myLibrary[i].title}`);
-      myLibrary.splice(i, 1);
-      render();
-    });
-  }
 }
+
+// Handle error messages
+function showError(message) {
+    let errorMessCont = document.getElementById("errorMessage");
+    errorMessCont.textContent = message;
+    errorMessCont.classList.add("show");
+
+    setTimeout(() => {
+        errorMessCont.classList.remove("show");
+    }, 3000);
+}

debugging/book-library/style.css

@@ -17,3 +17,24 @@
 button.btn-info {
   margin: 20px;
 }
+#errorMessage {
+  margin-right: 0;
+  color: white; 
+  background-color: hsla(0, 88%, 42%, 0.7); 
+  padding: 20px;  
+  border-radius: 5px;
+  width: 30%; 
+  text-align: center; 
+  font-weight: bold; 
+  display:none ; 
+  position: absolute;
+  z-index: 1000; 
+  top: 20px; 
+  right: 20px
+}
+
+#errorMessage.show {
+  display: block;
+  opacity: 1;
+  transform: translateX(0)
+}