function getBookData(isbn) {
    var table = document.getElementById("books-table");
    
    // Find all rows in the table except the header
    var rows = table.getElementsByTagName("tr");
    
    // Iterate through each row
    for (var i = 1; i < rows.length; i++) { // starting from 1 to skip the header row
        var cells = rows[i].getElementsByTagName("td");
        
        // Check if the ISBN in the current row matches the given ISBN
        if (cells[0].innerText == isbn) {
            // Extract data from the row
            var title = cells[1].innerText;
            var author = cells[2].innerText;
            var status = {"À lire": 0, "En cours": 1, "Lu": 2}[cells[3].innerText];
            var owner = cells[4].innerText;
            var category = cells[5].innerText;
            
            // Return the data
            return {
                title: title,
                author: author,
                status: status,
                owner: owner,
                category: category,
            };
        }
    }
    
    // If ISBN is not found, return null
    return null;
}

function openEditBookDialog(isbn) {
    var bookData = getBookData(isbn);
    if (bookData) {
        var editDialog = document.getElementById("edit-book-dialog");
        document.getElementById("edit-isbn").value = isbn;
        document.getElementById("edit-title").value = bookData.title;
        document.getElementById("edit-author").value = bookData.author;
        document.getElementById("edit-owner").value = bookData.owner;
        document.getElementById("edit-status").value = bookData.status;
        document.getElementById("edit-category").value = bookData.category;
        editDialog.showModal();
    } else {
        alert("Book not found!");
    }
}

// Function to hide the edit-book dialog
function hideEditBookDialog() {
    var editDialog = document.getElementById("edit-book-dialog");
    editDialog.close();
}

// Function to show the delete-book dialog
function openDeleteBookDialog(isbn) {
    var bookData = getBookData(isbn);
    console.log(isbn, bookData)
    if (bookData === null)
        return;

    var deleteDialog = document.getElementById("delete-book-dialog");
    document.getElementById("delete-isbn").value = isbn;
    document.getElementById("delete-book-name").innerText = bookData.title;
    if (bookData.title === undefined || bookData.title == "None")
        document.getElementById("delete-book-name").innerText = "ISBN:"+isbn;


    deleteDialog.showModal();
    // Handle cancel delete
    document.getElementById("cancel-delete").onclick = function() {
        deleteDialog.close();
    };
}

// Function to hide the delete-book dialog
function hideDeleteBookDialog() {
    var deleteDialog = document.getElementById("delete-book-dialog");
    deleteDialog.close();
}

function categoryChange() {
    edit_cat = document.getElementById("edit-category");
    if (edit_cat.selectedOptions[0].text == "- Nouvelle catégorie -") {
        new_cat = window.prompt("Nom de la catégorie ?", "");
        if (new_cat == "") return;

        edit_cat.innerHTML += '<option value="'+new_cat+'" selected>'+new_cat+'</option>';
    }
}