// ==UserScript==
// @name         sbxh6Downloader
// @namespace    https://github.com/crossSiteKikyo/tokiDownloader
// @version      0.0.1
// @description  sbxh6.com (뉴토끼) 만화 다운로더
// @author       hehaho
// @match        https://sbxh*.com/manhwa/*
// @icon         https://github.com/user-attachments/assets/99f5bb36-4ef8-40cc-8ae5-e3bf1c7952ad
// @grant        GM_registerMenuCommand
// @grant        GM_xmlhttpRequest
// @grant        GM_download
// @require      https://cdnjs.cloudflare.com/ajax/libs/jszip/3.7.1/jszip.min.js
// @require      https://cdnjs.cloudflare.com/ajax/libs/jszip-utils/0.1.0/jszip-utils.js
// @run-at       document-end
// @license      MIT
// ==/UserScript==

(function () {
    'use strict';

    const downloadZip = (blob, filename) => {
        const url = URL.createObjectURL(blob);
        if (typeof GM_download !== "undefined") {
            GM_download({
                url: url,
                name: filename,
                onload: () => URL.revokeObjectURL(url),
                onerror: () => {
                    const link = document.createElement("a");
                    link.href = url;
                    link.download = filename;
                    link.click();
                    URL.revokeObjectURL(url);
                }
            });
        } else {
            const link = document.createElement("a");
            link.href = url;
            link.download = filename;
            link.click();
            URL.revokeObjectURL(url);
        }
    };

    function sleep(ms) {
        return new Promise(resolve => setTimeout(resolve, ms));
    }

    function generateComicInfo(title, series, writer, number, pageCount, imageCount = 0) {
        let pagesXml = '';
        if (imageCount > 0) {
            for (let i = 0; i < imageCount; i++) {
                pagesXml += `        <Page Image="${i}" Type="Story"/>\n`;
            }
        }

        const comicInfo = `<?xml version="1.0" encoding="utf-8"?>
<ComicInfo xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
    <Title>${title}</Title>
    <Series>${series}</Series>
    <Number>${number}</Number>
    <Count>-1</Count>
    <Volume>-1</Volume>
    <Summary></Summary>
    <Notes></Notes>
    <Year>-1</Year>
    <Month>-1</Month>
    <Writer>${writer}</Writer>
    <Penciller></Penciller>
    <Inker></Inker>
    <Colorist></Colorist>
    <Letterer></Letterer>
    <CoverArtist></CoverArtist>
    <Editor></Editor>
    <Publisher></Publisher>
    <Imprint></Imprint>
    <Genre></Genre>
    <Web></Web>
    <PageCount>${pageCount}</PageCount>
    <LanguageISO>ko</LanguageISO>
    <Format></Format>
    <BlackAndWhite>Unknown</BlackAndWhite>
    <Manga>Yes</Manga>
${pagesXml ? `    <Pages>\n${pagesXml}    </Pages>\n` : ''}
</ComicInfo>`;
        return comicInfo;
    }

    function getEpisodeImages() {
        const imgs = document.querySelectorAll('div.vw-imgs img, div.vw-imgs--single img, div.vw-imgs--double img');
        const urls = [];
        imgs.forEach(img => {
            if (img.src && img.src.startsWith('http') && !urls.includes(img.src)) {
                urls.push(img.src);
            }
        });
        return urls;
    }

    function getSeriesName() {
        const metaEl = document.querySelector('div.vw-bot-meta strong');
        if (metaEl) return metaEl.textContent.trim();

        const titleEl = document.querySelector('h1');
        if (titleEl && !titleEl.closest('.hero-v2')) {
            return titleEl.textContent.trim();
        }

        const ogTitle = document.querySelector('meta[property="og:title"]');
        if (ogTitle) {
            const content = ogTitle.getAttribute('content') || '';
            return content.split('|')[0].trim() || content;
        }

        return document.title.split('|')[0].trim() || '제목없음';
    }

    function getEpisodeTitle() {
        const metaEl = document.querySelector('div.vw-bot-meta span');
        if (metaEl) return metaEl.textContent.trim();

        const titleEl = document.querySelector('h1');
        if (titleEl && !titleEl.closest('.hero-v2')) {
            return titleEl.textContent.trim();
        }

        return document.title.split('|')[0].trim() || '제목없음';
    }

    function getListPageInfo() {
        const currentURL = window.location.href;
        const pathParts = window.location.pathname.split('/').filter(Boolean);
        const isListPage = pathParts.length === 2;
        const isEpisodePage = pathParts.length >= 3;

        return { isListPage, isEpisodePage };
    }

    async function downloadCurrentEpisode() {
        try {
            console.clear();
            console.log('에피소드 다운로드 시작...');

            let imageUrls = getEpisodeImages();
            if (imageUrls.length === 0) {
                console.log('이미지 로드 대기 중...');
                for (let i = 0; i < 10; i++) {
                    await sleep(500);
                    imageUrls = getEpisodeImages();
                    if (imageUrls.length > 0) break;
                }
            }

            if (imageUrls.length === 0) {
                alert('이미지를 찾을 수 없습니다. 페이지가 완전히 로드되었는지 확인해주세요.');
                return;
            }

            const seriesName = getSeriesName();
            const episodeTitle = getEpisodeTitle();
            console.log(`시리즈: ${seriesName}`);
            console.log(`에피소드: ${episodeTitle}`);
            console.log(`이미지: ${imageUrls.length}개 발견`);

            const zip = new JSZip();
            const protocolDomain = window.location.origin;

            const downloadImage = (url, index, total) => {
                return new Promise((resolve) => {
                    GM_xmlhttpRequest({
                        method: 'GET',
                        url: url,
                        responseType: 'arraybuffer',
                        headers: {
                            'Referer': protocolDomain,
                            'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36'
                        },
                        onload: (response) => {
                            if (response.status === 200) {
                                const ext = url.split('.').pop().split('?')[0] || 'jpg';
                                const blob = new Blob([response.response], { type: 'image/' + ext });
                                const filename = `image${String(index).padStart(4, '0')}.${ext}`;
                                zip.file(filename, blob);
                                console.log(`${index + 1}/${total} 다운로드 완료`);
                            } else {
                                console.log(`이미지 ${index} 실패 (${response.status})`);
                            }
                            resolve();
                        },
                        onerror: () => {
                            console.log(`이미지 ${index} 오류`);
                            resolve();
                        },
                        ontimeout: () => {
                            console.log(`이미지 ${index} 타임아웃`);
                            resolve();
                        }
                    });
                });
            };

            let promiseList = [];
            for (let i = 0; i < imageUrls.length; i++) {
                promiseList.push(downloadImage(imageUrls[i], i, imageUrls.length));
                if (promiseList.length >= 5) {
                    await Promise.all(promiseList);
                    promiseList = [];
                    await sleep(1000);
                }
            }
            if (promiseList.length > 0) {
                await Promise.all(promiseList);
            }

            const extMatch = imageUrls[0].match(/\.(jpg|jpeg|png|webp)/i);
            const ext = extMatch ? extMatch[1].toLowerCase() : 'jpg';
            const extCounts = {};
            imageUrls.forEach(url => {
                const e = url.match(/\.(jpg|jpeg|png|webp)/i);
                if (e) extCounts[e[1].toLowerCase()] = (extCounts[e[1].toLowerCase()] || 0) + 1;
            });
            const primaryExt = Object.keys(extCounts).sort((a, b) => extCounts[b] - extCounts[a])[0] || 'jpg';

            const comicInfoContent = generateComicInfo(episodeTitle, seriesName, '', '1', imageUrls.length, imageUrls.length);
            zip.file('ComicInfo.xml', comicInfoContent);

            const content = await zip.generateAsync({ type: "blob" });
            downloadZip(content, `${seriesName} - ${episodeTitle}.zip`);

            console.log(`완료: ${imageUrls.length}개 이미지`);
        } catch (error) {
            alert('다운로드 중 오류 발생:\n' + error);
            console.error(error);
        }
    }

    async function downloadAllEpisodes() {
        try {
            console.clear();
            console.log('목록 페이지 처리 시작');

            const episodeList = document.querySelector('ul.ep-list-v2');
            if (!episodeList) {
                alert('에피소드 목록을 찾을 수 없습니다.');
                return;
            }

            const items = episodeList.querySelectorAll('li.ep-row-v2');
            console.log(`총 ${items.length}개 에피소드 발견`);

            const episodes = [];
            items.forEach((li, index) => {
                const link = li.querySelector('a.ep-row-v2-link');
                if (link) {
                    const href = link.getAttribute('href');
                    const absoluteUrl = href.startsWith('http') ? href : new URL(href, window.location.href).href;
                    const epNoEl = li.querySelector('.ep-row-v2-no');
                    const epTitleEl = li.querySelector('.ep-row-v2-title strong');
                    const epNumber = epNoEl ? epNoEl.textContent.trim() : String(index + 1);
                    const epTitle = epTitleEl ? epTitleEl.textContent.trim() : epNumber;

                    episodes.push({
                        index,
                        number: epNumber,
                        title: epTitle,
                        url: absoluteUrl
                    });
                }
            });

            console.log(`추출된 링크: ${episodes.length}개`);

            if (episodes.length === 0) {
                alert('에피소드 링크를 추출할 수 없습니다.');
                return;
            }

            const seriesName = getSeriesName();
            console.log(`시리즈: ${seriesName}`);

            const iframe = document.createElement('iframe');
            iframe.width = 600;
            iframe.height = 600;
            iframe.style.position = 'fixed';
            iframe.style.left = '-9999px';
            iframe.style.top = '0';
            document.body.appendChild(iframe);

            const waitIframeLoad = (url) => {
                return new Promise((resolve) => {
                    iframe.addEventListener('load', () => resolve(), { once: true });
                    iframe.src = url;
                });
            };

            const getImagesInIframe = () => {
                try {
                    const iframeDoc = iframe.contentWindow.document;
                    const imgs = iframeDoc.querySelectorAll('div.vw-imgs img, div.vw-imgs--single img');
                    const urls = [];
                    imgs.forEach(img => {
                        if (img.src && img.src.startsWith('http') && !urls.includes(img.src)) {
                            urls.push(img.src);
                        }
                    });
                    return urls;
                } catch (e) {
                    console.log('iframe 접근 오류:', e);
                    return [];
                }
            };

            for (let i = 0; i < episodes.length; i++) {
                const episode = episodes[i];
                console.clear();
                console.log(`${i + 1}/${episodes.length} ${episode.title} 처리 중...`);

                await waitIframeLoad(episode.url);
                console.log('페이지 로드 완료, 이미지 대기 중...');
                await sleep(3000);

                try {
                    const iframeDoc = iframe.contentWindow.document;
                    const viewContent = iframeDoc.querySelector('.vw-imgs, .vw-imgs--single, [class*="vw-imgs"]');
                    if (viewContent) {
                        viewContent.scrollTop = 100;
                    }
                } catch (e) {}

                await sleep(2000);

                let imageUrls = getImagesInIframe();

                if (imageUrls.length === 0) {
                    console.log(`이미지를 찾을 수 없음 - 스킵`);
                    continue;
                }

                console.log(`이미지 ${imageUrls.length}개 발견`);

                const zip = new JSZip();
                const protocolDomain = window.location.origin;

                const downloadImage = (url, index, total) => {
                    return new Promise((resolve) => {
                        GM_xmlhttpRequest({
                            method: 'GET',
                            url: url,
                            responseType: 'arraybuffer',
                            headers: {
                                'Referer': protocolDomain,
                                'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36'
                            },
                            onload: (response) => {
                                if (response.status === 200) {
                                    const ext = url.split('.').pop().split('?')[0] || 'jpg';
                                    const blob = new Blob([response.response], { type: 'image/' + ext });
                                    const filename = `image${String(index).padStart(4, '0')}.${ext}`;
                                    zip.file(filename, blob);
                                    console.log(`  ${index + 1}/${total} 이미지 다운로드`);
                                } else {
                                    console.log(`  이미지 ${index} 실패 (${response.status})`);
                                }
                                resolve();
                            },
                            onerror: () => {
                                console.log(`  이미지 ${index} 오류`);
                                resolve();
                            },
                            ontimeout: () => {
                                console.log(`  이미지 ${index} 타임아웃`);
                                resolve();
                            }
                        });
                    });
                };

                let promiseList = [];
                for (let j = 0; j < imageUrls.length; j++) {
                    promiseList.push(downloadImage(imageUrls[j], j, imageUrls.length));
                    if (promiseList.length >= 5) {
                        await Promise.all(promiseList);
                        promiseList = [];
                        await sleep(1000);
                    }
                }
                if (promiseList.length > 0) {
                    await Promise.all(promiseList);
                }

                const comicInfoContent = generateComicInfo(episode.title, seriesName, '', String(i + 1), imageUrls.length, imageUrls.length);
                zip.file('ComicInfo.xml', comicInfoContent);

                const content = await zip.generateAsync({ type: "blob" });
                downloadZip(content, `${seriesName} - ${episode.title}.zip`);

                console.log(`${i + 1}/${episodes.length} ${episode.title} 완료`);
                await sleep(3000);
            }

            iframe.remove();
            console.log('모든 에피소드 다운로드 완료');
        } catch (error) {
            alert('목록 다운로드 중 오류:\n' + error);
            console.error(error);
        }
    }

    const { isListPage, isEpisodePage } = getListPageInfo();

    if (isListPage) {
        GM_registerMenuCommand('[목록] 전체 에피소드 다운로드', () => downloadAllEpisodes());
        console.log('sbxh6Downloader: 목록 페이지 감지됨. Tampermonkey 메뉴에서 실행하세요.');
    } else if (isEpisodePage) {
        GM_registerMenuCommand('현재 에피소드 다운로드', () => downloadCurrentEpisode());
        console.log('sbxh6Downloader: 에피소드 페이지 감지됨. Tampermonkey 메뉴에서 실행하세요.');
    } else {
        console.log('sbxh6Downloader: 알 수 없는 페이지 타입');
    }
})();