// ==UserScript==
// @name         X(Twitter)推特解析下载
// @namespace    http://309096184.xyz/
// @version      1.0.0
// @description  自动识别X/Twitter推文链接，一键解析无水印视频下载
// @author       【Rain】黯笙
// @icon         http://309096184.xyz/x/tb.webp
// @match        *://*/*
// @grant        GM_xmlhttpRequest
// @run-at       document-start
// @license      黯笙
// ==/UserScript==


(function() {
    const textBtn = "解析";
    const textFail = "解析失败";
    const textError = "解析出错";
    const textClose = "关闭";
    const loadingTipText = "正在解析中，请稍等";
    const textDonate = "赞助作者";
    const donateTip = "感谢支持作者【Rain】黯笙";
    const donateImgUrl = "http://309096184.xyz/x/zz.png";

    const API_TOKEN = "7kRf2Dp9vBnXtG5cLz0JmY8aP3sE6wU1hQ4dF";
    const BACKEND_URL = "http://309096184.xyz/x/x.php";
    const updateCheckUrl = "http://309096184.xyz/xcj/gx.txt";
    const currentVersion = "1.0.0";
    const textUpdate = "当前版本过低\n请前往葫芦侠三楼更新\n作者【Rain】黯笙";

    function versionIsHigher(v1, v2) {
        const arr1 = v1.split(".").map(Number);
        const arr2 = v2.split(".").map(Number);
        const maxLen = Math.max(arr1.length, arr2.length);
        for(let i = 0; i < maxLen; i++){
            const num1 = arr1[i] || 0;
            const num2 = arr2[i] || 0;
            if(num1 > num2) return true;
            if(num1 < num2) return false;
        }
        return false;
    }

    function cleanTweetUrl(url) {
        let u = url.trim();
        u = u.replace(/#.*/, "");
        u = u.replace(/(\/status\/\d+).*/, "$1");
        return u;
    }

    function isTweetUrl(url) {
        return /(?:twitter\.com|x\.com)\/[^\/]+\/status\/\d+/i.test(url);
    }

    function showLoadingToast(msg) {
        const oldToast = document.getElementById("parseLoadingToast");
        if (oldToast) oldToast.remove();

        const toast = document.createElement("div");
        toast.id = "parseLoadingToast";
        toast.textContent = msg;
        toast.style.cssText = [
            "position:fixed !important",
            "top:50% !important",
            "left:50% !important",
            "transform:translate(-50%,-50%) !important",
            "background:rgba(0,0,0,0.75) !important",
            "color:#fff !important",
            "padding:14px 26px !important",
            "border-radius:8px !important",
            "font-size:15px !important",
            "z-index:2147483647 !important",
            "white-space:nowrap !important",
            "font-family:Arial,Helvetica,sans-serif !important",
            "writing-mode:horizontal-tb !important",
            "direction:ltr !important",
            "text-align:center !important"
        ].join(";");

        document.body.appendChild(toast);
        return toast;
    }

    let analyzeBtn = null;

    function createAnalyzeBtn() {
        if (analyzeBtn) return analyzeBtn;

        const btn = document.createElement("button");
        btn.textContent = textBtn;
        btn.id = "xParseFloatBtn";

        btn.style.cssText = [
            "position:fixed !important",
            "bottom:120px !important",
            "right:20px !important",
            "z-index:2147483647 !important",
            "width:60px !important",
            "height:60px !important",
            "border-radius:50% !important",
            "background:#007aff !important",
            "color:#ffffff !important",
            "border:none !important",
            "font-size:14px !important",
            "font-weight:600 !important",
            "box-shadow:0 6px 16px rgba(0,122,255,0.4) !important",
            "pointer-events:auto !important",
            "margin:0 !important",
            "padding:0 !important",
            "line-height:60px !important",
            "text-align:center !important",
            "font-family:Arial,Helvetica,sans-serif !important",
            "writing-mode:horizontal-tb !important",
            "direction:ltr !important",
            "text-shadow:none !important",
            "text-transform:none !important",
            "letter-spacing:normal !important",
            "word-spacing:normal !important",
            "clip:auto !important",
            "clip-path:none !important",
            "transform:none !important"
        ].join(";");

        return btn;
    }

    function showBtn() {
        if (!analyzeBtn) {
            analyzeBtn = createAnalyzeBtn();
        }

        if (!analyzeBtn.parentElement) {
            document.body.appendChild(analyzeBtn);
        }

        analyzeBtn.style.display = "block";
    }

    function hideBtn() {
        if (analyzeBtn) {
            analyzeBtn.style.display = "none";
        }
    }

    function toggleBtn() {
        if (isTweetUrl(location.href)) {
            showBtn();
        } else {
            hideBtn();
        }
    }

    function startAnalyze() {
        const loadingToast = showLoadingToast(loadingTipText);
        const cleanUrl = cleanTweetUrl(location.href);
        const fullApi = `${BACKEND_URL}?token=${API_TOKEN}&url=${encodeURIComponent(cleanUrl)}`;

        GM_xmlhttpRequest({
            method: "GET",
            url: fullApi,
            timeout: 30000,
            onload: function(res) {
                loadingToast.remove();
                try {
                    const data = JSON.parse(res.responseText);
                    if (data.code !== 200) {
                        alert(`${textFail}：${data.message}`);
                        return;
                    }
                    const resData = data.data;
                    renderPopup(resData);
                } catch (e) {
                    alert(textError);
                    console.log("解析异常：", e);
                }
            },
            onerror: () => {
                loadingToast.remove();
                alert(textError);
            },
            ontimeout: () => {
                loadingToast.remove();
                alert("请求超时，请稍后重试");
            }
        });
    }

    function openDonatePopup() {
        const donateMask = document.createElement("div");
        donateMask.style.cssText = [
            "position:fixed !important",
            "inset:0 !important",
            "background:rgba(0,0,0,0.85) !important",
            "z-index:2147483648 !important",
            "display:flex !important",
            "flex-direction:column !important",
            "align-items:center !important",
            "justify-content:center !important",
            "padding:20px !important",
            "box-sizing:border-box !important"
        ].join(";");

        const wrapBox = document.createElement("div");
        wrapBox.style.cssText = [
            "background:#111 !important",
            "border-radius:16px !important",
            "padding:24px !important",
            "max-width:320px !important",
            "width:100% !important",
            "text-align:center !important"
        ].join(";");

        const title = document.createElement("div");
        title.style.cssText = [
            "color:#fff !important",
            "font-size:18px !important",
            "margin-bottom:16px !important",
            "font-weight:bold !important"
        ].join(";");
        title.textContent = donateTip;

        const qrWrap = document.createElement("div");
        qrWrap.style.cssText = [
            "width:100% !important",
            "min-height:240px !important",
            "background:#222 !important",
            "border-radius:12px !important",
            "margin-bottom:20px !important",
            "display:flex !important",
            "align-items:center !important",
            "justify-content:center !important",
            "color:#aaa !important"
        ].join(";");
        qrWrap.textContent = "二维码加载中...";

        const closeDonateBtn = document.createElement("button");
        closeDonateBtn.textContent = textClose;
        closeDonateBtn.style.cssText = [
            "background:#007aff !important",
            "color:#fff !important",
            "border:none !important",
            "border-radius:12px !important",
            "padding:8px 24px !important",
            "font-size:15px !important"
        ].join(";");
        closeDonateBtn.onclick = () => donateMask.remove();

        wrapBox.appendChild(title);
        wrapBox.appendChild(qrWrap);
        wrapBox.appendChild(closeDonateBtn);
        donateMask.appendChild(wrapBox);
        document.body.appendChild(donateMask);

        
        GM_xmlhttpRequest({
            method:"GET",
            url:donateImgUrl,
            responseType:"blob",
            timeout:10000,
            onload:function(res){
                if(res.status >=200 && res.status <300){
                    const blobUrl = URL.createObjectURL(res.response);
                    const qrImg = document.createElement("img");
                    qrImg.src = blobUrl;
                    qrImg.style.cssText = "width:100%;height:auto;object-fit:contain;border-radius:12px;";
                    qrWrap.innerHTML = "";
                    qrWrap.appendChild(qrImg);
                }else{
                    qrWrap.innerHTML = '<span style="color:#ff6666">二维码加载失败，链接访问异常</span>';
                }
            },
            onerror:function(){
                qrWrap.innerHTML = '<span style="color:#ff6666">网络请求失败，请检查服务器</span>';
            },
            ontimeout:function(){
                qrWrap.innerHTML = '<span style="color:#ff6666">图片加载超时</span>';
            }
        });

        
        donateMask.onclick = function(e) {
            if(e.target === donateMask) donateMask.remove();
        }
    }

    function renderPopup(resData) {
        const mask = document.createElement("div");
        mask.style.cssText = [
            "position:fixed !important",
            "inset:0 !important",
            "background:#000000 !important",
            "z-index:2147483646 !important",
            "overflow-y:auto !important",
            "padding:24px 12px 40px !important",
            "box-sizing:border-box !important"
        ].join(";");

        const topBar = document.createElement("div");
        topBar.style.cssText = [
            "display:flex !important",
            "justify-content:space-between !important",
            "align-items:center !important",
            "gap:10px !important",
            "margin-bottom:20px !important",
            "padding:0 4px !important"
        ].join(";");

        const pageTitle = document.createElement("span");
        pageTitle.style.cssText = [
            "color:#fff !important",
            "font-size:18px !important",
            "font-weight:500 !important",
            "font-family:Arial,Helvetica,sans-serif !important"
        ].join(";");

        
        const donateBtn = document.createElement("button");
        donateBtn.textContent = textDonate;
        donateBtn.style.cssText = [
            "background:#ff3b30 !important",
            "color:#fff !important",
            "border:0 !important",
            "border-radius:14px !important",
            "padding:9px 14px !important",
            "font-size:14px !important",
            "font-family:Arial,Helvetica,sans-serif !important"
        ].join(";");
        donateBtn.onclick = openDonatePopup;

        const closeBtn = document.createElement("button");
        closeBtn.textContent = textClose;
        closeBtn.style.cssText = [
            "background:#007aff !important",
            "color:#fff !important",
            "border:0 !important",
            "border-radius:14px !important",
            "padding:9px 22px !important",
            "font-size:16px !important",
            "font-family:Arial,Helvetica,sans-serif !important"
        ].join(";");
        closeBtn.onclick = () => mask.remove();

        const btnWrap = document.createElement("div");
        btnWrap.style.cssText = "display:flex; gap:8px;";
        btnWrap.appendChild(donateBtn);
        btnWrap.appendChild(closeBtn);

        topBar.appendChild(pageTitle);
        topBar.appendChild(btnWrap);
        mask.appendChild(topBar);

        const authorBox = document.createElement("div");
        authorBox.style.cssText = [
            "display:flex !important",
            "align-items:center !important",
            "gap:10px !important",
            "background:#121212 !important",
            "border-radius:16px !important",
            "padding:10px !important",
            "margin-bottom:16px !important"
        ].join(";");

        const avatarImg = document.createElement("img");
        avatarImg.src = resData.author.avatar;
        avatarImg.style.cssText = [
            "width:48px !important",
            "height:48px !important",
            "border-radius:50% !important",
            "object-fit:cover !important"
        ].join(";");

        const nameWrap = document.createElement("div");
        const nameText = document.createElement("div");
        nameText.style.cssText = [
            "color:#fff !important",
            "font-size:16px !important",
            "font-family:Arial,Helvetica,sans-serif !important"
        ].join(";");
        nameText.textContent = resData.author.name;

        const userText = document.createElement("div");
        userText.style.cssText = [
            "color:#aaa !important",
            "font-size:13px !important",
            "font-family:Arial,Helvetica,sans-serif !important"
        ].join(";");
        userText.textContent = "@" + resData.author.username;

        nameWrap.appendChild(nameText);
        nameWrap.appendChild(userText);
        authorBox.appendChild(avatarImg);
        authorBox.appendChild(nameWrap);
        mask.appendChild(authorBox);

        const tweetText = document.createElement("div");
        tweetText.style.cssText = [
            "color:#eee !important",
            "font-size:15px !important",
            "white-space:pre-wrap !important",
            "margin-bottom:20px !important",
            "line-height:1.6 !important",
            "padding:0 4px !important",
            "font-family:Arial,Helvetica,sans-serif !important"
        ].join(";");
        tweetText.textContent = resData.tweet_info.text;
        mask.appendChild(tweetText);

        if (resData.video_list && resData.video_list.length > 0) {
            pageTitle.textContent = "🎬 X视频解析下载";

            resData.video_list.forEach(videoItem => {
                const videoCard = document.createElement("div");
                videoCard.style.cssText = [
                    "background:#121212 !important",
                    "border-radius:16px !important",
                    "overflow:hidden !important",
                    "padding:8px !important",
                    "margin-bottom:16px !important",
                    "box-shadow:0 4px 14px rgba(0,0,0,0.5) !important"
                ].join(";");

                const coverImg = document.createElement("img");
                coverImg.src = videoItem.cover;
                coverImg.style.cssText = [
                    "width:100% !important",
                    "border-radius:12px !important",
                    "display:block !important"
                ].join(";");

                const video = document.createElement("video");
                video.src = videoItem.best_download_url;
                video.controls = true;
                video.style.cssText = [
                    "width:100% !important",
                    "border-radius:12px !important",
                    "margin-top:8px !important"
                ].join(";");

                videoCard.appendChild(coverImg);
                videoCard.appendChild(video);
                mask.appendChild(videoCard);
            });
        } else {
            pageTitle.textContent = "📝 纯文字推文";

            const tip = document.createElement("div");
            tip.style.cssText = [
                "color:#999 !important",
                "text-align:center !important",
                "padding:30px 0 !important",
                "font-family:Arial,Helvetica,sans-serif !important"
            ].join(";");
            tip.textContent = "这条推文无视频资源";
            mask.appendChild(tip);
        }

        document.body.appendChild(mask);
    }

    function init() {
        if (!document.body) {
            setTimeout(init, 50);
            return;
        }

        toggleBtn();

        analyzeBtn.onclick = () => {
            GM_xmlhttpRequest({
                method: "GET",
                url: updateCheckUrl,
                timeout: 5000,
                onload: function(res) {
                    try {
                        const updateInfo = JSON.parse(res.responseText);
                        if (versionIsHigher(updateInfo.version, currentVersion) && updateInfo.forceUpdate) {
                            alert(textUpdate);
                            if (updateInfo.updateUrl) {
                                window.open(updateInfo.updateUrl);
                            }
                            return;
                        }
                        startAnalyze();
                    } catch (err) {
                        startAnalyze();
                    }
                },
                onerror: startAnalyze,
                ontimeout: startAnalyze
            });
        };

        setInterval(toggleBtn, 800);
    }

    init();
})();