// ==UserScript==
// @name         New Userscript NCD3-1
// @namespace    https://docs.scriptcat.org/
// @version      0.1.0
// @description  try to take over the world!
// @author       LiuQi
// @match        https://*/*
// @grant        none
// @noframes
// ==/UserScript==


(function() {
    'use strict';
    // 资源缓存
    const loadedSet = new Set();
    const videoThumbCache = new Map();
    const mediaDomMap = new Map(); // DOM缓存，增量渲染优化
    const mediaConfig = {
        globalMute: true,
        autoPlay: true,
        filterMinDuration: 10
    };

    let phoneGalleryEl = null;
    let fullPreviewWrap = null;
    let controlBar = null;
    let tabBar = null;
    let phoneHomeBtn = null;

    let allMediaList = [];
    let currentTab = 'all';
    let currentMediaIndex = 0;
    let touchStartX = 0;
    let touchMoveX = 0;
    const slideThreshold = 40;
    let slideThrottle = false; // 滑动节流标记

    // ===================== 1. iOS磨砂整机DOM结构 =====================
    const phoneBox = document.createElement('div');
    phoneBox.className = 'ios-blur-card';
    const phoneNotch = document.createElement('div');
    phoneNotch.className = 'ios-notch';

    // iOS原生分段控件Tab（替代旧胶囊按钮，解决别扭问题）
    tabBar = document.createElement('div');
    tabBar.className = 'ios-segment-control';
    const tabAll = document.createElement('button');
    tabAll.className = 'seg-btn active';
    tabAll.textContent = '全部';
    const tabImage = document.createElement('button');
    tabImage.className = 'seg-btn';
    tabImage.textContent = '图片';
    const tabVideo = document.createElement('button');
    tabVideo.className = 'seg-btn';
    tabVideo.textContent = '视频';
    tabBar.append(tabAll, tabImage, tabVideo);

    // 轻量化控制按钮栏
    controlBar = document.createElement('div');
    controlBar.className = 'ios-control-row';
    const muteBtn = document.createElement('button');
    muteBtn.className = 'ios-small-btn mute-btn';
    muteBtn.textContent = '静音开';
    const autoPlayBtn = document.createElement('button');
    autoPlayBtn.className = 'ios-small-btn autoplay-btn';
    autoPlayBtn.textContent = '自动播放开';
    controlBar.append(muteBtn, autoPlayBtn);

    const screenContainer = document.createElement('div');
    screenContainer.className = 'ios-screen-wrap';
    phoneGalleryEl = document.createElement('ul');
    phoneGalleryEl.className = 'media-gallery';
    fullPreviewWrap = document.createElement('div');
    fullPreviewWrap.className = 'full-preview-layer';
    fullPreviewWrap.style.display = 'none';

    phoneHomeBtn = document.createElement('div');
    phoneHomeBtn.className = 'ios-home-button';
    phoneHomeBtn.addEventListener('click', closeFullPreview);

    screenContainer.append(phoneGalleryEl, fullPreviewWrap);
    phoneBox.append(phoneNotch, tabBar, controlBar, screenContainer, phoneHomeBtn);
    document.body.prepend(phoneBox);

    // ===================== 2. iOS分段Tab切换逻辑 =====================
    function switchTab(type) {
        currentTab = type;
        document.querySelectorAll('.seg-btn').forEach(btn => btn.classList.remove('active'));
        if (type === 'all') tabAll.classList.add('active');
        if (type === 'image') tabImage.classList.add('active');
        if (type === 'video') tabVideo.classList.add('active');
        renderFilterMedia();
    }
    tabAll.addEventListener('click', () => switchTab('all'));
    tabImage.addEventListener('click', () => switchTab('image'));
    tabVideo.addEventListener('click', () => switchTab('video'));

    // ===================== 3. 滑动切换 + 节流优化 =====================
    function handleSlideSwitch() {
        if (slideThrottle) return;
        slideThrottle = true;
        const diff = touchMoveX - touchStartX;
        if (diff < -slideThreshold) nextMedia();
        if (diff > slideThreshold) prevMedia();
        touchStartX = 0;
        touchMoveX = 0;
        setTimeout(() => slideThrottle = false, 250);
    }
    // 触屏事件
    fullPreviewWrap.addEventListener('touchstart', e => touchStartX = e.touches[0].clientX);
    fullPreviewWrap.addEventListener('touchmove', e => touchMoveX = e.touches[0].clientX);
    fullPreviewWrap.addEventListener('touchend', handleSlideSwitch);
    // PC鼠标拖拽
    fullPreviewWrap.addEventListener('mousedown', e => touchStartX = e.clientX);
    fullPreviewWrap.addEventListener('mousemove', e => { if (e.buttons === 1) touchMoveX = e.clientX; });
    fullPreviewWrap.addEventListener('mouseup', handleSlideSwitch);
    // 键盘切换
    document.addEventListener('keydown', e => {
        if (fullPreviewWrap.style.display === 'none') return;
        if (e.key === 'ArrowLeft') prevMedia();
        if (e.key === 'ArrowRight') nextMedia();
    });

    function prevMedia() {
        if (currentMediaIndex <= 0) return;
        currentMediaIndex--;
        openMediaByIndex(currentMediaIndex);
    }
    function nextMedia() {
        if (currentMediaIndex >= allMediaList.length - 1) return;
        currentMediaIndex++;
        openMediaByIndex(currentMediaIndex);
    }
    function openMediaByIndex(index) {
        const media = allMediaList[index];
        if (media.type === 'image') openFullImage(media.src);
        if (media.type === 'video') openFullVideo(media.src);
        if (media.type === 'iframe-video') openFullIframe(media.src);
    }

    muteBtn.addEventListener('click', () => {
        mediaConfig.globalMute = !mediaConfig.globalMute;
        muteBtn.textContent = mediaConfig.globalMute ? '静音开' : '静音关';
    });
    autoPlayBtn.addEventListener('click', () => {
        mediaConfig.autoPlay = !mediaConfig.autoPlay;
        autoPlayBtn.textContent = mediaConfig.autoPlay ? '自动播放开' : '自动播放关';
    });

    // ===================== 4. 工具函数 =====================
    function parseIframeVideoSrc(iframeSrc) {
        let realVideo = '';
        if (iframeSrc.includes('bilibili.com/player')) {
            const bvidMatch = iframeSrc.match(/bvid=([A-Za-z0-9]+)/);
            const aidMatch = iframeSrc.match(/aid=(\d+)/);
            if (bvidMatch) realVideo = `https://player.bilibili.com/player.html?bvid=${bvidMatch[1]}`;
            else if (aidMatch) realVideo = `https://player.bilibili.com/player.html?aid=${aidMatch[1]}`;
        }
        if (iframeSrc.includes('youku.com')) {
            const vidMatch = iframeSrc.match(/vid_([A-Za-z0-9]+)/);
            if (vidMatch) realVideo = `https://player.youku.com/embed/${vidMatch[1]}`;
        }
        return realVideo;
    }

    function createVideoThumb(src, callback) {
        if (videoThumbCache.has(src)) {
            callback(videoThumbCache.get(src));
            return;
        }
        const canvas = document.createElement('canvas');
        canvas.width = 120;
        canvas.height = 60;
        const ctx = canvas.getContext('2d');
        const tempVid = document.createElement('video');
        tempVid.src = src;
        tempVid.muted = true;
        tempVid.currentTime = 0.1;
        tempVid.addEventListener('loadeddata', () => {
            if (tempVid.duration < mediaConfig.filterMinDuration) {
                callback(null);
                return;
            }
            ctx.drawImage(tempVid, 0, 0, canvas.width, canvas.height);
            const dataUrl = canvas.toDataURL();
            videoThumbCache.set(src, dataUrl);
            callback(dataUrl);
        });
        tempVid.load();
    }

    function bindLongPressDownload(el, mediaSrc, mediaType) {
        let pressTimer = null;
        const longPressTime = 600;
        el.addEventListener('mousedown', () => pressTimer = setTimeout(() => {
            const a = document.createElement('a');
            a.href = mediaSrc;
            a.download = mediaType === 'image' ? '预览图片' : '预览视频';
            document.body.appendChild(a);
            a.click();
            a.remove();
        }, longPressTime));
        el.addEventListener('mouseup', () => clearTimeout(pressTimer));
        el.addEventListener('mouseleave', () => clearTimeout(pressTimer));
    }

    // ===================== 5. 增量渲染媒体DOM（性能核心优化） =====================
    function createMediaItem(mediaObj) {
        const { type, src } = mediaObj;
        if (mediaDomMap.has(src)) return mediaDomMap.get(src);
        const li = document.createElement('li');
        li.className = 'gallery-item';
        li.dataset.mediaType = type;
        li.dataset.src = src;

        if (type === 'image') {
            const thumb = document.createElement('img');
            thumb.className = 'media-thumb';
            thumb.src = src;
            thumb.onerror = () => thumb.style.background = '#eee';
            thumb.addEventListener('click', e => {
                e.stopPropagation();
                currentMediaIndex = allMediaList.findIndex(m => m.src === src);
                openFullImage(src);
            });
            bindLongPressDownload(thumb, src, 'image');
            li.appendChild(thumb);
        } else if (type === 'video') {
            const thumbImg = document.createElement('img');
            thumbImg.className = 'media-thumb';
            const videoTag = document.createElement('span');
            videoTag.className = 'ios-video-tag';
            videoTag.textContent = '视频';
            createVideoThumb(src, thumbData => {
                if (!thumbData) li.remove();
                else thumbImg.src = thumbData;
            });
            thumbImg.addEventListener('click', e => {
                e.stopPropagation();
                currentMediaIndex = allMediaList.findIndex(m => m.src === src);
                openFullVideo(src);
            });
            bindLongPressDownload(thumbImg, src, 'video');
            li.append(thumbImg, videoTag);
        } else if (type === 'iframe-video') {
            const thumbImg = document.createElement('img');
            thumbImg.className = 'media-thumb';
            thumbImg.src = 'data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="120" height="60" fill="%23333"><rect width="120" height="60" fill="%23eee"/><text x="10" y="35" font-size="12">内嵌视频</text></svg>';
            const iframeTag = document.createElement('span');
            iframeTag.className = 'ios-iframe-tag';
            iframeTag.textContent = 'B站/优酷';
            thumbImg.addEventListener('click', e => {
                e.stopPropagation();
                currentMediaIndex = allMediaList.findIndex(m => m.src === src);
                openFullIframe(src);
            });
            li.append(thumbImg, iframeTag);
        }
        mediaDomMap.set(src, li);
        return li;
    }

    function renderFilterMedia() {
        phoneGalleryEl.innerHTML = '';
        allMediaList.forEach(media => {
            if (currentTab === 'all'
                || (currentTab === 'image' && media.type === 'image')
                || (currentTab === 'video' && (media.type === 'video' || media.type === 'iframe-video'))) {
                const dom = createMediaItem(media);
                phoneGalleryEl.appendChild(dom);
            }
        });
    }

    // ===================== 6. 全屏预览 =====================
    function openFullImage(src) {
        fullPreviewWrap.innerHTML = '';
        fullPreviewWrap.style.background = '#fff';
        const fullImg = document.createElement('img');
        fullImg.src = src;
        fullImg.className = 'full-preview-img';
        fullImg.addEventListener('click', closeFullPreview);
        fullPreviewWrap.appendChild(fullImg);
        fullPreviewWrap.style.display = 'flex';
    }
    function openFullVideo(src) {
        fullPreviewWrap.innerHTML = '';
        fullPreviewWrap.style.background = '#000';
        const fullVideo = document.createElement('video');
        fullVideo.src = src;
        fullVideo.className = 'full-preview-video';
        fullVideo.controls = true;
        fullVideo.muted = mediaConfig.globalMute;
        fullVideo.autoplay = mediaConfig.autoPlay;
        fullPreviewWrap.appendChild(fullVideo);
        fullPreviewWrap.style.display = 'flex';
    }
    function openFullIframe(src) {
        fullPreviewWrap.innerHTML = '';
        fullPreviewWrap.style.background = '#000';
        const iframe = document.createElement('iframe');
        iframe.src = src;
        iframe.className = 'full-preview-iframe';
        iframe.allow = 'autoplay;fullscreen;encrypted-media';
        iframe.frameBorder = '0';
        fullPreviewWrap.appendChild(iframe);
        fullPreviewWrap.style.display = 'flex';
    }
    function closeFullPreview() {
        const videoEl = fullPreviewWrap.querySelector('video');
        if (videoEl) {
            videoEl.pause();
            videoEl.src = '';
        }
        fullPreviewWrap.style.display = 'none';
        fullPreviewWrap.innerHTML = '';
    }

    // ===================== 7. 页面媒体采集（增量追加，防抖） =====================
    function collectAllMedia() {
        let hasNew = false;
        // 图片采集
        Array.from(document.querySelectorAll('img')).forEach(imgDom => {
            let src = imgDom.src || imgDom.dataset.src || imgDom.dataset.original;
            if (!src) return;
            const blankGif = src.startsWith('data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7');
            if (blankGif || loadedSet.has(src)) return;
            loadedSet.add(src);
            allMediaList.push({ type: 'image', src });
            hasNew = true;
        });
        // 原生视频
        Array.from(document.querySelectorAll('video')).forEach(videoDom => {
            let src = videoDom.src;
            if (!src && videoDom.querySelector('source')) src = videoDom.querySelector('source').src;
            if (!src || loadedSet.has(src)) return;
            loadedSet.add(src);
            allMediaList.push({ type: 'video', src });
            hasNew = true;
        });
        // iframe视频
        Array.from(document.querySelectorAll('iframe')).forEach(iframe => {
            const realSrc = parseIframeVideoSrc(iframe.src);
            if (!realSrc || loadedSet.has(realSrc)) return;
            loadedSet.add(realSrc);
            allMediaList.push({ type: 'iframe-video', src: realSrc });
            hasNew = true;
        });
        if (hasNew) renderFilterMedia();
    }

    let observerTimer = null;
    const observer = new MutationObserver(() => {
        clearTimeout(observerTimer);
        observerTimer = setTimeout(() => collectAllMedia(), 300);
    });
    observer.observe(document.body, {
        childList: true,
        subtree: true,
        attributes: true,
        attributeFilter: ['src', 'data-src', 'data-original']
    });
    collectAllMedia();

    // ===================== 8. iOS磨砂半透明完整样式 =====================
    const style = document.createElement('style');
    style.textContent = `
        /* iOS 磨砂玻璃悬浮整机卡片 核心 */
        .ios-blur-card {
            position: fixed;
            top: 20px;
            right: 20px;
            z-index: 99999;
            width: 280px;
            height: 560px;
            /* 毛玻璃半透核心属性 */
            background: rgba(255, 255, 255, 0.72);
            backdrop-filter: blur(20px) saturate(180%);
            -webkit-backdrop-filter: blur(20px) saturate(180%);
            border: 1px solid rgba(255, 255, 255, 0.85);
            border-radius: 36px;
            padding: 16px 12px;
            /* iOS柔和多层阴影 */
            box-shadow:
                0 20px 60px rgba(0, 0, 0, 0.09),
                0 8px 24px rgba(0, 0, 0, 0.06),
                inset 0 0 0 0.5px rgba(255,255,255,0.9);
            box-sizing: border-box;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 10px;
        }

        /* 顶部灵动岛刘海 极简 */
        .ios-notch {
            width: 62px;
            height: 13px;
            background: #111;
            border-radius: 0 0 11px 11px;
        }

        /* ========== iOS原生分段控件（解决之前按钮别扭问题） ========== */
        .ios-segment-control {
            width: 96%;
            display: flex;
            background: rgba(0,0,0,0.06);
            border-radius: 999px;
            padding: 3px;
            gap: 2px;
        }
        .seg-btn {
            flex: 1;
            border: none;
            padding: 5px 0;
            font-size: 10px;
            font-weight: 500;
            border-radius: 999px;
            background: transparent;
            color: #666;
            cursor: pointer;
            transition: all 0.2s cubic-bezier(0.2,0,0.2,1);
        }
        .seg-btn.active {
            background: #ffffff;
            color: #007aff;
            box-shadow: 0 1px 4px rgba(0,0,0,0.08);
        }

        /* 控制按钮行 iOS小型标签 */
        .ios-control-row {
            width: 100%;
            display: flex;
            gap: 8px;
            justify-content: center;
        }
        .ios-small-btn {
            font-size: 9px;
            padding: 3px 8px;
            border-radius: 999px;
            border: none;
            background: rgba(0,122,255,0.09);
            color: #007aff;
            cursor: pointer;
            transition: 0.2s;
        }
        .ios-small-btn:hover {
            background: rgba(0,122,255,0.16);
        }

        /* 屏幕容器 */
        .ios-screen-wrap {
            flex: 1;
            width: 100%;
            position: relative;
            border-radius: 20px;
            overflow: hidden;
            background: rgba(255,255,255,0.4);
            border: 1px solid rgba(0,0,0,0.05);
        }

        /* 媒体缩略图库 */
        .media-gallery {
            width: 100%;
            height: 100%;
            margin: 0;
            padding: 9px;
            list-style: none;
            overflow-y: auto;
            overflow-x: hidden;
            display: flex;
            flex-wrap: wrap;
            gap: 5px;
            box-sizing: border-box;
        }
        .media-gallery::-webkit-scrollbar {
            width: 4px;
        }
        .media-gallery::-webkit-scrollbar-thumb {
            background: rgba(0,0,0,0.12);
            border-radius: 2px;
        }

        /* iOS圆形Home键 半透磨砂 */
        .ios-home-button {
            width: 32px;
            height: 32px;
            border: 1.5px solid rgba(0,0,0,0.22);
            border-radius: 50%;
            margin-top: 2px;
            cursor: pointer;
            transition: 0.2s;
            background: rgba(255,255,255,0.35);
            backdrop-filter: blur(4px);
        }
        .ios-home-button:hover {
            border-color: #007aff;
            background: rgba(0,122,255,0.08);
        }

        /* 缩略格子多列 */
        .gallery-item {
            flex: 1 0 42px;
            margin: 0;
            position: relative;
        }
        .media-thumb {
            width: 100%;
            height: 42px;
            object-fit: cover;
            background: #fff;
            border-radius: 7px;
            border: 1px solid rgba(0,0,0,0.06);
            cursor: pointer;
            transition: transform 0.2s ease;
            display: block;
            box-shadow: 0 1px 2px rgba(0,0,0,0.04);
        }
        .media-thumb:hover {
            transform: scale(1.04);
            box-shadow: 0 3px 9px rgba(0,0,0,0.09);
        }

        /* iOS系统风格媒体角标 半透磨砂 */
        .ios-video-tag, .ios-iframe-tag {
            position: absolute;
            bottom: 2px;
            right: 2px;
            color: #fff;
            font-size: 6px;
            padding: 1px 3px;
            border-radius: 3px;
            backdrop-filter: blur(6px);
            font-weight: 500;
        }
        .ios-video-tag {
            background: rgba(0,122,255,0.75);
        }
        .ios-iframe-tag {
            background: rgba(52,199,89,0.75);
        }

        /* 全屏预览层 */
        .full-preview-layer {
            position: absolute;
            inset: 0;
            background: rgba(255,255,255,0.9);
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 6px;
            box-sizing: border-box;
            touch-action: pan-y;
        }
        .full-preview-img {
            width: 100%;
            height: 100%;
            object-fit: contain;
            cursor: grab;
            border-radius: 10px;
        }
        .full-preview-img:active {
            cursor: grabbing;
        }
        .full-preview-video, .full-preview-iframe {
            width: 100%;
            height: 100%;
            object-fit: contain;
            border: none;
            border-radius: 10px;
        }

        /* 移动端适配 */
        @media (max-width: 768px) {
            .ios-blur-card {
                width: 144px;
                height: 324px;
                right: 10px;
                bottom: 10px;
                top: auto;
                padding: 12px 8px;
            }
            .gallery-item {
                flex: 1 0 30px;
            }
            .media-thumb {
                height: 30px;
                border-radius: 5px;
            }
            .ios-home-button {
                width: 24px;
                height: 24px;
            }
            .ios-notch {
                width: 40px;
                height: 9px;
            }
            .seg-btn, .ios-small-btn {
                font-size: 7px;
            }
            .ios-video-tag, .ios-iframe-tag {
                font-size: 5px;
            }
        }
    `;
    document.head.appendChild(style);
})();