// ==UserScript==
// @name         BookCrossing BCID Export
// @namespace    http://tampermonkey.net/
// @version      2025-01-05
// @description  Export BCIds, title, author, and category of books on the current page to a CSV file. This can than be used to print labels.
// @author       Kiki
// @match        https://www.bookcrossing.com/mybookshelf/*/available
// @icon         https://www.bookcrossing.com/images/site/bookcrossing-icon-new-256.png
// @grant        none
// @license      MIT
// ==/UserScript==
(function() {
'use strict';
createButton();
})();
function createButton()
{
var menu = document.querySelector('div#content > h2 + div');
if(null == menu)
{
console.log('Menu not found, cannot create button.');
return;
}
console.log('createButton 1');
var btn = createElementFromHTML(`
<a target="_blank" class="plain" href="" title="Export BCIDs" onclick="return false;">
<i class="fas fa-save muted">
</i>
</a>
`);
btn.innerHTML += "&nbsp;&nbsp;";
btn.onclick = exportAll;
menu.insertBefore(btn, menu.firstChild);
}
function createElementFromHTML(htmlString)
{
var div = document.createElement('div');
div.innerHTML = htmlString.trim();
// Change this to div.childNodes to support multiple top-level nodes.
return div.firstChild;
}
function exportAll()
{
var txt = "BCID\tTitle\tAuthor\tCategory";
document.querySelectorAll('div.book-list-detail').forEach(
(book) => {
var title = book.querySelector('h5 > a').innerText;
var author = book.querySelector('div > a').innerText;
var cat = book.querySelector('div > a:nth-of-type(2)').innerText;
var bcid = book.querySelector('div:nth-of-type(4)  > div:nth-of-type(2) > span').innerText;
bcid = bcid.replace('BCID: ', '');
txt += `\r\n${bcid}\t${title}\t${author}\t${cat}`;
});
var dlurl = 'data:text/csv;base64,' + btoa(txt);
saveFile(dlurl);
return false;
}
function exportBCIDs()
{
var ids = "BCID\r\n";
document.querySelectorAll('div.my-2 > span').forEach(
(e) => {
ids = ids + e.textContent.replace('BCID: ', '') + "\n";
});
var dlurl = 'data:text/csv;base64,' + btoa(ids);
saveFile(dlurl);
return false;
}
function saveFile(fileURL, fileName)
{
var save = document.createElement('a');
save.href = fileURL;
save.target = '_blank';
save.download = fileName || 'unknown';
var evt = new MouseEvent('click',
{
//'view': window,
'bubbles': true,
'cancelable': false
});
save.dispatchEvent(evt);
}