Inkr Comic Ripper

Downloads chapter images from comics.inkr.com individually into a folder named after the tab.
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// ==UserScript==
// @name         Inkr Comic Ripper
// @namespace    http://tampermonkey.net/
// @version      1.0
// @description  Downloads chapter images from comics.inkr.com individually into a folder named after the tab.
// @author       ozler365
// @license      GPL-3.0-only
// @icon         https://is1-ssl.mzstatic.com/image/thumb/Purple116/v4/23/52/3f/23523f4d-7878-8c58-44da-953647a1bc2c/AppIcon-1x_U007emarketing-0-7-0-85-220.png/400x400ia-75.webp
// @match        https://comics.inkr.com/title/*/chapter/*
// @grant        GM_download
// @grant        GM_addStyle
// ==/UserScript==

(function() {
    'use strict';

    let imageUrls = [];

    // --- 1. Network Observer ---
    const resourceObserver = new PerformanceObserver((list) => {
        const entries = list.getEntries();
        for (const entry of entries) {
            const url = entry.name;
            try {
                const parsedUrl = new URL(url);
                if (parsedUrl.pathname.endsWith('p.jpg') || parsedUrl.pathname.endsWith('/p.jpg')) {
                    if (!imageUrls.includes(url)) {
                        imageUrls.push(url);
                        updateUI();
                    }
                }
            } catch (e) {
                // Ignore malformed URLs
            }
        }
    });

    resourceObserver.observe({ type: 'resource', buffered: true });

    // --- 2. Build the UI ---
    GM_addStyle(`
        #inkr-dl-container {
            position: fixed;
            bottom: 20px;
            right: 20px;
            z-index: 999999;
            background: rgba(0, 0, 0, 0.8);
            padding: 10px 15px;
            border-radius: 8px;
            box-shadow: 0 4px 6px rgba(0,0,0,0.3);
            font-family: sans-serif;
            color: white;
            display: flex;
            flex-direction: column;
            gap: 8px;
            align-items: center;
        }
        #inkr-dl-btn {
            background: #0984e3;
            color: white;
            border: none;
            padding: 8px 16px;
            border-radius: 4px;
            cursor: pointer;
            font-weight: bold;
            transition: 0.2s;
        }
        #inkr-dl-btn:hover { background: #74b9ff; }
        #inkr-dl-btn:disabled { background: #747d8c; cursor: not-allowed; }
        #inkr-dl-text { font-size: 12px; margin: 0; }
    `);

    const container = document.createElement('div');
    container.id = 'inkr-dl-container';

    const infoText = document.createElement('p');
    infoText.id = 'inkr-dl-text';
    infoText.innerText = 'Scroll to load pages...';

    const downloadBtn = document.createElement('button');
    downloadBtn.id = 'inkr-dl-btn';
    downloadBtn.innerText = 'Download (0)';
    downloadBtn.addEventListener('click', downloadImages);

    container.appendChild(infoText);
    container.appendChild(downloadBtn);
    document.body.appendChild(container);

    function updateUI() {
        downloadBtn.innerText = `Download (${imageUrls.length})`;
        infoText.innerText = `Found ${imageUrls.length} pages`;
    }

    // --- 3. Downloading Logic ---
    async function downloadImages() {
        if (imageUrls.length === 0) {
            alert("No images found yet. Make sure you scroll through the chapter first!");
            return;
        }

        downloadBtn.disabled = true;

        // Get tab title and sanitize it to create a safe Windows/Mac folder name
        let rawTitle = document.title || "Inkr_Chapter";
        // Remove illegal characters: \ / : * ? " < > |
        const safeFolderName = rawTitle.replace(/[\\\/\:\*\?\"\<\>\|]/g, '').trim();

        for (let i = 0; i < imageUrls.length; i++) {
            downloadBtn.innerText = `Downloading ${i + 1}/${imageUrls.length}...`;

            const url = imageUrls[i];
            const fileName = `page_${String(i + 1).padStart(3, '0')}.jpg`;
            // GM_download allows saving to a sub-directory inside your default Downloads folder
            const savePath = `${safeFolderName}/${fileName}`;

            // Await each download to prevent overwhelming the browser
            await new Promise((resolve) => {
                GM_download({
                    url: url,
                    name: savePath,
                    onload: () => resolve(),
                    onerror: (err) => {
                        console.error(`Failed to download ${savePath}`, err);
                        resolve(); // Resolve anyway so the loop continues to the next image
                    },
                    ontimeout: () => resolve()
                });
            });

            // Add a tiny 200ms delay between downloads so the browser doesn't throttle us
            await new Promise(r => setTimeout(r, 200));
        }

        downloadBtn.innerText = `Download (${imageUrls.length})`;
        downloadBtn.disabled = false;
        alert(`Done! Check your Downloads folder for the "${safeFolderName}" folder.`);
    }
})();