Generates a random doujinshi with personalized tags
// ==UserScript==
// @name random doujin but with tags
// @namespace pablo
// @version 2.0
// @description Generates a random doujinshi with personalized tags
// @match https://nhentai.net/*
// @exclude https://nhentai.net/g/*/
// @connect nhentai.net
// @icon https://i.imgur.com/1lihxY2.png
// @license MIT
// @grant GM_addStyle
// @grant GM_getResourceText
// @grant GM_getValue
// @grant GM_openInTab
// @grant GM_registerMenuCommand
// @grant GM_setValue
// @grant GM_xmlhttpRequest
// @grant unsafeWindow
// ==/UserScript==
(function() {
'use strict';
const apiBaseUrl = 'https://nhentai.net/api/galleries/search?query=';
// Create the button
const button = document.createElement('button');
button.textContent = 'MAGIC !';
button.classList.add('my-button');
// Create the multi-selection tag list
const select = document.createElement('select');
select.style.position = 'static';
select.style.bottom = '100px';
select.style.right = '20px';
select.style.zIndex = '9999';
select.style.padding = '8px 12px';
select.style.border = '1px solid #ddd';
select.style.borderRadius = '5px';
select.style.fontSize = '14px';
select.style.backgroundColor = '#fff';
select.style.color = '#333';
select.style.maxWidth = '300px';
select.style.height = '45px';
select.multiple = true;
// Define your desired tags (you can add more by following this exemple:(, "tag")
const desired_tags = ["big breasts", "full color"];
desired_tags.forEach(tag => {
const option = document.createElement('option');
option.textContent = tag;
select.appendChild(option);
});
// Button click event
button.addEventListener('click', async function() {
const selectedTags = Array.from(select.selectedOptions, option => option.value);
if (selectedTags.length > 0) {
try {
const randomTag = getRandomTag(selectedTags);
const doujinshi = await getRandomDoujinshi(randomTag);
displayDoujinshiDetails(doujinshi, randomTag);
} catch (error) {
displayErrorMessage('An error occurred while fetching doujinshi. Please try again later.');
}
}
});
// Create the container for the button and the select
const container = document.createElement('li');
container.appendChild(button);
container.appendChild(select);
// Target the <ul> element with class "menu right"
const ulMenu = document.querySelector('ul.menu.right');
if (ulMenu) {
ulMenu.appendChild(container);
}
// Add styles
GM_addStyle(`
.my-button {
background-color: #0d0d0d;
color: white;
border: none;
padding: 5px 20px;
font-size: 14px;
cursor: pointer;
border-radius: 0px;
margin-right: 10px; /* Add margin to separate from other buttons */
}
.my-container {
display: flex;
align-items: center;
}
`);
function getRandomTag(tags) {
const randomIndex = Math.floor(Math.random() * tags.length);
return tags[randomIndex];
}
async function getRandomDoujinshi(tag) {
const response = await fetch(apiBaseUrl + tag);
const data = await response.json();
if (data.num_pages > 0) {
const randomPage = Math.floor(Math.random() * data.num_pages) + 1;
return getRandomDoujinshiFromPage(tag, randomPage);
} else {
throw new Error(`No doujinshi found with tag "${tag}"`);
}
}
async function getRandomDoujinshiFromPage(tag, page) {
const response = await fetch(apiBaseUrl + tag + '&page=' + page);
const data = await response.json();
if (data.result.length > 0) {
const randomIndex = Math.floor(Math.random() * data.result.length);
return data.result[randomIndex];
} else {
throw new Error(`No doujinshi found with tag "${tag}"`);
}
}
function displayDoujinshiDetails(doujinshi, tag) {
const title = doujinshi.title.pretty;
const tags = doujinshi.tags.map(tag => tag.name).join(', ');
console.log('Doujinshi Title:', title);
console.log('Tags:', tags);
console.log(`The doujinshi "${title}" contains the tag "${tag}"`);
window.open(`https://nhentai.net/g/${doujinshi.id}`, '_blank');
}
})();