// ==UserScript==
// @name         小雅自动刷
// @namespace    http://tampermonkey.net/
// @version      1.2
// @description  小雅平台自动刷课脚本。
// @author       Qy
// @match        https://*.ai-augmented.com/*
// @connect      docs.qq.com
// @grant        GM_xmlhttpRequest
// @icon         data:image/png;base64,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
// @run-at       document-end
// ==/UserScript==

(function () {
    'use strict';

    const STORAGE_KEY = 'xy_qy_task_queue'; 
    const POS_KEY = 'xy_qy_ui_pos';
    const NOTICE_CACHE_KEY = 'xy_qy_notice_cache';
    const DOMAIN = window.location.hostname;
    const DEFAULT_DURATION = 10; 
    const NOTICE_URL = "https://docs.qq.com/doc/DYXZ5VUpyVXRnU1Fx";
    const VIDEO_EXT = /\.(mp4|flv|avi|mov|mkv|wmv|rmvb|m4v|webm)$/i;

    let taskQueue = [];
    let heartbeatInterval = null;
    let timerInterval = null;
    let isExpanded = false;
    let currentTask = null;
    let remainingTime = 0;
    let uiPos = null;
    let noticeContent = "⏳ 初始化中..."; 

    function loadData() {
        try {
            const q = localStorage.getItem(STORAGE_KEY);
            const p = localStorage.getItem(POS_KEY);
            if (q) taskQueue = JSON.parse(q);
            if (p) uiPos = JSON.parse(p);
        } catch (e) { taskQueue = []; }
    }

    function saveData() {
        localStorage.setItem(STORAGE_KEY, JSON.stringify(taskQueue));
    }

    function savePos(top, left) {
        uiPos = { top, left };
        localStorage.setItem(POS_KEY, JSON.stringify(uiPos));
    }

    function getCookie(keyword = 'prd-access-token') {
        const cookies = document.cookie.split('; ');
        for (const cookie of cookies) {
            const [name, value] = cookie.split('=');
            if (name.includes(keyword)) return value;
        }
        return null;
    }

    function getPageInfo() {
        const url = window.location.href;
        const match = url.match(/mycourse\/(\d+)\/resource\/(\d+)\/(\d+)/);
        if (match) return { groupId: match[1], resourceId: match[2], nodeId: match[3] };
        const listMatch = url.match(/mycourse\/(\d+)/);
        if (listMatch) return { groupId: listMatch[1], resourceId: null, nodeId: null };
        return { groupId: null, resourceId: null, nodeId: null };
    }

    function formatSeconds(s) {
        if (!s || s < 0) return "0:00";
        const min = Math.floor(s / 60);
        const sec = Math.floor(s % 60);
        return `${min}:${sec.toString().padStart(2, '0')}`;
    }

    function runOneShotNoticeCheck() {
        const isDangerZone = /\/mycourse\/\d+/.test(window.location.href);
        if (isDangerZone) {
            const cached = localStorage.getItem(NOTICE_CACHE_KEY);
            if (cached) noticeContent = cached;
            else noticeContent = "⚠️ 读取失败，为了防止检测，请离开课程区返回首页后再尝试读取公告。";
        } else {
            GM_xmlhttpRequest({
                method: "GET",
                url: NOTICE_URL,
                onload: function(response) {
                    try {
                        const match = response.responseText.match(/<title>(.*?)<\/title>/);
                        let title = match ? match[1] : "暂无公告";
                        title = title.replace(" - 腾讯文档", "").trim();
                        const tempSpan = document.createElement('span');
                        tempSpan.innerHTML = title;
                        const finalContent = tempSpan.innerText;
                        localStorage.setItem(NOTICE_CACHE_KEY, finalContent);
                        noticeContent = finalContent;
                        const el = document.getElementById('xy-notice-board');
                        if (el) el.innerText = finalContent;
                    } catch (e) { noticeContent = "❌ 公告解析失败"; }
                },
                onerror: function() { noticeContent = "❌ 公告网络错误"; }
            });
        }
    }

    async function submitFinishActivity() {
        if (!currentTask) return;
        const { groupId } = getPageInfo();
        const token = getCookie();
        const targetGroupId = groupId || currentTask.groupId;
        try {
            await fetch(`https://${DOMAIN}/api/jx-iresource/resource/finishActivity`, {
                method: 'POST',
                headers: { 'authorization': `Bearer ${token}`, 'content-type': 'application/json; charset=UTF-8' },
                body: JSON.stringify({ group_id: targetGroupId, node_id: currentTask.nodeId, task_id: currentTask.taskId })
            });
        } catch (e) { }
    }

    function tryReadVideoDuration(retryCount = 0) {
        if (!currentTask || (currentTask.duration && currentTask.duration > 0)) return;
        const video = document.querySelector('video');
        const { nodeId } = getPageInfo();
        if (!nodeId || String(nodeId) !== String(currentTask.nodeId)) return;
        if (video && video.duration && video.duration > 1) {
            const realDuration = Math.ceil(video.duration) + 5;
            updateTaskDuration(realDuration);
        } else {
            if (retryCount < 2) setTimeout(() => tryReadVideoDuration(retryCount + 1), 2000);
            else updateTaskDuration(DEFAULT_DURATION * 60);
        }
    }

    function updateTaskDuration(seconds) {
        if (!currentTask) return;
        currentTask.duration = seconds;
        remainingTime = seconds;
        const index = taskQueue.findIndex(t => String(t.nodeId) === String(currentTask.nodeId));
        if (index !== -1) {
            taskQueue[index].duration = seconds;
            saveData();
        }
        renderUI();
    }

    function tryAutoPlay() {
        const video = document.querySelector('video');
        if (video && video.paused) {
            video.muted = true;
            video.play().catch(() => {});
        }
    }

    async function fetchResources(groupId, token) {
        try {
            const res = await fetch(`https://${DOMAIN}/api/jx-iresource/resource/queryCourseResources?group_id=${groupId}`, {
                headers: { "authorization": `Bearer ${token}` }
            });
            const data = await res.json();
            return data.success ? data.data : [];
        } catch (e) { return []; }
    }

    async function fetchTasksFromApi() {
        const { groupId } = getPageInfo();
        const token = getCookie();
        if (!token) return;
        const btn = document.getElementById('xy-refresh-btn');
        if(btn) btn.innerText = "加载中...";
        try {
            if (groupId) {
                const [taskRes, resourceList] = await Promise.all([
                    fetch(`https://${DOMAIN}/api/jx-stat/group/task/queryTaskNotices?group_id=${groupId}&role=1`, {
                        headers: { "authorization": `Bearer ${token}` }
                    }).then(r => r.json()),
                    fetch(`https://${DOMAIN}/api/jx-iresource/resource/queryCourseResources?group_id=${groupId}`, {
                        headers: { "authorization": `Bearer ${token}` }
                    }).then(r => r.json())
                ]);
                if (taskRes.success) {
                    const resourceMap = new Map();
                    if (resourceList.success) resourceList.data.forEach(r => { if (r.is_task) resourceMap.set(String(r.task_id), r); });
                    const courseName = document.title.replace(/-.*/, '').trim() || "当前课程";
                    taskQueue = taskRes.data.student_tasks.filter(t => t.task_type === 1 && t.finish !== 2).map(t => {
                        const resInfo = resourceMap.get(String(t.task_id));
                        let isVideo = false;
                        if (resInfo) isVideo = (resInfo.type && String(resInfo.type).includes('video')) || (resInfo.mimetype && resInfo.mimetype.includes('video')) || (resInfo.name && VIDEO_EXT.test(resInfo.name));
                        let dur = isVideo ? 0 : ((resInfo && resInfo.watch_min_minutes > 0) ? (resInfo.watch_min_minutes * 60 + 20) : DEFAULT_DURATION * 60);
                        return { groupId, nodeId: String(t.node_id), taskId: String(t.task_id), name: resInfo ? resInfo.name : t.name, duration: Math.ceil(dur), isVideo, groupName: courseName };
                    });
                }
            } else {
                const res = await fetch(`https://${DOMAIN}/api/jx-stat/group/task/un_finish`, {
                    headers: { "authorization": `Bearer ${token}` }
                }).then(r => r.json());
                if (res.success) {
                    taskQueue = res.data.filter(t => t.task_type === 1).map(t => ({
                        groupId: String(t.group_id), nodeId: String(t.node_id), taskId: String(t.resource_id || t.task_id), name: t.name, duration: 0, isVideo: VIDEO_EXT.test(t.name), groupName: t.group_name
                    }));
                }
            }
            taskQueue.sort((a, b) => (a.groupName || "").localeCompare(b.groupName || ""));
            saveData();
            renderUI();
            checkCurrentTask();
        } catch (e) { } finally { if(btn) btn.innerText = "刷新列表"; }
    }

    async function sendHeartbeat() {
        const { groupId, resourceId } = getPageInfo();
        const token = getCookie();
        if (!token) return;
        try {
            let userId = localStorage.getItem('xy_user_id');
            if (!userId) {
                const userRes = await fetch(`https://${DOMAIN}/api/jx-auth/oauth2/info`, { headers: { "authorization": `Bearer ${token}` } }).then(r => r.json());
                userId = userRes.data.info.id;
                localStorage.setItem('xy_user_id', userId);
            }
            const targetGroupId = groupId || (currentTask ? currentTask.groupId : null);
            const targetResourceId = resourceId || (currentTask ? currentTask.taskId : null);
            if (!targetGroupId || !targetResourceId) return;
            const message = JSON.stringify({ user_id: userId, group_id: targetGroupId, clientType: 1, roleType: 1, resourceId: targetResourceId });
            const timestamp = Date.now().toString(), nonce = crypto.randomUUID();
            const arr = [encodeURIComponent(message), timestamp, nonce, "--xy-create-signature--"].sort().join("");
            const hashBuffer = await crypto.subtle.digest('SHA-1', new TextEncoder().encode(arr));
            const signature = Array.from(new Uint8Array(hashBuffer)).map(b => b.toString(16).padStart(2, '0')).join('');
            await fetch(`https://${DOMAIN}/api/jx-iresource/learnLength/learnRecord`, {
                method: 'POST',
                headers: { 'authorization': `Bearer ${token}`, 'content-type': 'application/json; charset=UTF-8' },
                body: JSON.stringify({ message, signature, timestamp, nonce })
            });
        } catch (e) {}
    }

    function stopTimer() {
        if (timerInterval) clearInterval(timerInterval);
        if (heartbeatInterval) clearInterval(heartbeatInterval);
        timerInterval = null; heartbeatInterval = null; currentTask = null;
        renderUI();
    }

    function jumpToNext() {
        if (taskQueue.length === 0) { stopTimer(); return; }
        const nextTask = taskQueue[0];
        window.location.replace(`https://${DOMAIN}/app/jx-web/mycourse/${nextTask.groupId}/resource/${nextTask.taskId}/${nextTask.nodeId}`);
    }

    async function handleTaskComplete() {
        if (!currentTask) { jumpToNext(); return; }
        const finishedNodeId = currentTask.nodeId;
        if (!currentTask.isVideo) await submitFinishActivity();
        stopTimer();
        const removeIndex = taskQueue.findIndex(t => String(t.nodeId) === String(finishedNodeId));
        if (removeIndex !== -1) { taskQueue.splice(removeIndex, 1); saveData(); }
        setTimeout(jumpToNext, 1000);
    }

    function startTimer(task) {
        currentTask = task;
        remainingTime = parseInt(task.duration) || 0;
        if (heartbeatInterval) clearInterval(heartbeatInterval);
        heartbeatInterval = setInterval(sendHeartbeat, 30000);
        sendHeartbeat();
        if (timerInterval) clearInterval(timerInterval);
        timerInterval = setInterval(() => {
            if (remainingTime > 0) {
                remainingTime--;
                updateTimerDisplay();
                if (remainingTime <= 0) handleTaskComplete();
            }
        }, 1000);
        if (task.duration === 0) setTimeout(() => tryReadVideoDuration(0), 2000);
        if (task.isVideo) setTimeout(tryAutoPlay, 2000);
        renderUI();
    }

    async function checkCurrentTask() {
        const { nodeId, groupId } = getPageInfo();
        if (!nodeId) { stopTimer(); return; }
        const taskIndex = taskQueue.findIndex(t => String(t.nodeId) === String(nodeId));
        const task = taskQueue[taskIndex];
        if (task) {
            if (!task.isVideo && (!task.duration || task.duration === 0 || task.duration === DEFAULT_DURATION * 60)) {
                const token = getCookie();
                try {
                    const taskRes = await fetch(`https://${DOMAIN}/api/jx-stat/group/task/queryTaskNotices?group_id=${groupId}&role=1`, {
                        headers: { "authorization": `Bearer ${token}` }
                    }).then(r => r.json());
                    if (taskRes.success) {
                        const realTaskNotice = taskRes.data.student_tasks.find(t => String(t.node_id) === String(nodeId));
                        if (realTaskNotice) {
                            const realTaskId = String(realTaskNotice.task_id);
                            task.taskId = realTaskId;
                            taskQueue[taskIndex].taskId = realTaskId;
                            const resourceRes = await fetch(`https://${DOMAIN}/api/jx-iresource/resource/queryCourseResources?group_id=${groupId}`, {
                                headers: { "authorization": `Bearer ${token}` }
                            }).then(r => r.json());
                            if (resourceRes.success) {
                                const resInfo = resourceRes.data.find(r => String(r.task_id) === realTaskId);
                                if (resInfo && resInfo.watch_min_minutes > 0) {
                                    task.duration = Math.ceil((resInfo.watch_min_minutes * 60) + 20);
                                } else {
                                    if (task.duration !== DEFAULT_DURATION * 60) task.duration = DEFAULT_DURATION * 60;
                                }
                                saveData();
                                renderUI();
                            }
                        }
                    }
                } catch (e) { }
            }
            if (!currentTask || String(currentTask.nodeId) !== String(task.nodeId)) startTimer(task);
        } else stopTimer();
    }

    function makeDraggable(el, handle) {
        handle.addEventListener('mousedown', (e) => {
            const rect = el.getBoundingClientRect();
            const offsetX = e.clientX - rect.left, offsetY = e.clientY - rect.top;
            el.style.right = 'auto'; el.style.bottom = 'auto';
            el.style.left = rect.left + 'px'; el.style.top = rect.top + 'px';
            function onMouseMove(e) { el.style.left = (e.clientX - offsetX) + 'px'; el.style.top = (e.clientY - offsetY) + 'px'; }
            function onMouseUp() {
                document.removeEventListener('mousemove', onMouseMove);
                document.removeEventListener('mouseup', onMouseUp);
                savePos(el.style.top, el.style.left);
            }
            document.addEventListener('mousemove', onMouseMove);
            document.addEventListener('mouseup', onMouseUp);
        });
    }

    const container = document.createElement('div');
    container.id = 'xy-helper-container';
    loadData();
    if (uiPos) { container.style.top = uiPos.top; container.style.left = uiPos.left; }
    else { container.style.top = '20%'; container.style.right = '10px'; }
    Object.assign(container.style, { position: 'fixed', zIndex: '999999', fontFamily: "'PingFang SC', sans-serif" });
    document.body.appendChild(container);

    const style = document.createElement('style');
    style.textContent = `
        .xy-ball { width: 50px; height: 50px; background-image: url('data:image/png;base64,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'); background-size: 100% 100%; background-repeat: no-repeat; background-position: center; border-radius: 50%; box-shadow: 0 4px 10px rgba(0,0,0,0.3); cursor: grab; display: flex; align-items: center; justify-content: center; color: white; font-size: 24px; user-select: none; }
        .xy-panel { width: 280px; background: rgba(30, 30, 30, 0.95); color: #fff; border-radius: 8px; box-shadow: 0 8px 24px rgba(0,0,0,0.5); overflow: hidden; display: flex; flex-direction: column; border: 1px solid rgba(255,255,255,0.1); }
        .xy-header { padding: 12px; background: rgba(255,255,255,0.1); display: flex; justify-content: space-between; align-items: center; cursor: grab; user-select: none; }
        .xy-controls { padding: 8px; background: rgba(0,0,0,0.2); text-align: center; }
        .xy-btn { background: #0072FF; border: none; color: white; padding: 6px 15px; border-radius: 4px; cursor: pointer; font-size: 12px; margin: 0 2px; }
        .xy-btn:hover { background: #005bb5; }
        .xy-btn.danger { background: #ff4757; }
        .xy-list { max-height: 300px; overflow-y: auto; padding: 5px; }
        .xy-list::-webkit-scrollbar { width: 5px; }
        .xy-list::-webkit-scrollbar-thumb { background: #555; border-radius: 5px; }
        .xy-group-header { padding: 6px 10px; background: rgba(255,255,255,0.08); font-weight: bold; font-size: 11px; color: #bde0ff; border-top: 1px solid rgba(255,255,255,0.05); }
        .xy-item { display: flex; justify-content: space-between; align-items: center; padding: 8px; border-bottom: 1px solid rgba(255,255,255,0.05); padding-left: 15px; }
        .xy-item.active { background: rgba(0, 114, 255, 0.2); border-left: 3px solid #00C6FF; }
        .xy-item-name { flex: 1; font-size: 13px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; margin-right: 10px; cursor: pointer; }
        .xy-item-right { display: flex; align-items: center; gap: 5px; }
        .xy-time-input { width: 45px; background: #222; border: 1px solid #444; color: #fff; font-size: 11px; text-align: center; border-radius: 3px; }
        .xy-time-input.waiting { color: #aaa; font-style: italic; border-color: #666; }
        .xy-delete { cursor: pointer; color: #ff6b81; font-size: 16px; padding: 0 5px; }
        .xy-status-bar { padding: 8px; text-align: center; font-size: 12px; color: #00C6FF; background: rgba(0,0,0,0.3); }
        .xy-tag { font-size:10px; padding:1px 3px; border-radius:3px; border:1px solid #aaa; color:#aaa; }
        .xy-tag.video { border-color:#3498db; color:#3498db; }
        .xy-notice { padding: 8px 10px; background: rgba(0,0,0,0.4); color: #e0e0e0; font-size: 11px; border-top: 1px solid rgba(255,255,255,0.1); max-height: 60px; overflow-y: auto; line-height: 1.4; text-align: left; white-space: pre-wrap; word-break: break-all; cursor: pointer; }
        .xy-notice.expanded { max-height: none; }
    `;
    document.head.appendChild(style);

    function renderUI() {
        container.innerHTML = '';
        if (!isExpanded) {
            const ball = document.createElement('div');
            ball.className = 'xy-ball';
            ball.ondblclick = () => { isExpanded = true; renderUI(); };
            makeDraggable(container, ball);
            container.appendChild(ball);
        } else {
            const panel = document.createElement('div');
            panel.className = 'xy-panel';
            const header = document.createElement('div');
            header.className = 'xy-header';
            header.innerHTML = `<span>小雅自动刷 v1.2</span>`;
            const minBtn = document.createElement('button');
            minBtn.innerHTML = '➖'; minBtn.style = "background:none;border:none;color:white;cursor:pointer;";
            minBtn.onclick = () => { isExpanded = false; renderUI(); };
            header.appendChild(minBtn); makeDraggable(container, header); panel.appendChild(header);

            const controls = document.createElement('div');
            controls.className = 'xy-controls';
            const refreshBtn = document.createElement('button');
            refreshBtn.className = 'xy-btn'; refreshBtn.id = 'xy-refresh-btn'; refreshBtn.innerText = '刷新列表';
            refreshBtn.onclick = fetchTasksFromApi;
            const clearBtn = document.createElement('button');
            clearBtn.className = 'xy-btn danger'; clearBtn.innerText = '清空';
            clearBtn.onclick = () => { if(confirm("确定清空本地列表吗？")) { taskQueue=[]; saveData(); stopTimer(); renderUI(); } };
            controls.appendChild(refreshBtn); controls.appendChild(clearBtn); panel.appendChild(controls);

            const status = document.createElement('div');
            status.className = 'xy-status-bar'; status.id = 'xy-timer-display';
            if(currentTask) {
                if(remainingTime > 0) status.innerHTML = `▶ 进行中: ${formatSeconds(remainingTime)}`;
                else status.innerHTML = `⏳ 正在读取时长...`;
            } else { status.innerHTML = `⏸ 待机中`; }
            panel.appendChild(status);

            const list = document.createElement('div');
            list.className = 'xy-list';
            if (taskQueue.length === 0) { list.innerHTML = `<div style="text-align:center;padding:20px;color:#888;font-size:12px;">列表为空</div>`; }
            else {
                let lastGroupName = null;
                taskQueue.forEach((task, index) => {
                    if (task.groupName && task.groupName !== lastGroupName) {
                        const groupHeader = document.createElement('div');
                        groupHeader.className = 'xy-group-header';
                        groupHeader.innerText = `📂 ${task.groupName}`;
                        list.appendChild(groupHeader);
                        lastGroupName = task.groupName;
                    }
                    const item = document.createElement('div');
                    const isActive = currentTask && String(task.nodeId) === String(currentTask.nodeId);
                    item.className = `xy-item ${isActive ? 'active' : ''}`;
                    const name = document.createElement('div');
                    name.className = 'xy-item-name';
                    name.innerHTML = `${task.isVideo ? '<span class="xy-tag video">视</span>' : '<span class="xy-tag">文</span>'} ${task.name || '未知任务'}`;
                    name.onclick = () => window.location.replace(`https://${DOMAIN}/app/jx-web/mycourse/${task.groupId}/resource/${task.taskId}/${task.nodeId}`);
                    const right = document.createElement('div');
                    right.className = 'xy-item-right';
                    const timeInput = document.createElement('input');
                    timeInput.type = 'text'; timeInput.className = 'xy-time-input';
                    if (task.duration && task.duration > 0) timeInput.value = (task.duration / 60).toFixed(1);
                    else { timeInput.value = ""; timeInput.placeholder = "待读取"; timeInput.className += " waiting"; }
                    timeInput.onchange = (e) => {
                        const val = parseFloat(e.target.value);
                        if(val && val > 0) { task.duration = Math.ceil(val * 60); if(isActive) remainingTime = task.duration; saveData(); renderUI(); }
                    };
                    const delBtn = document.createElement('div');
                    delBtn.className = 'xy-delete'; delBtn.innerHTML = '✖';
                    delBtn.onclick = () => { if (isActive) stopTimer(); taskQueue.splice(index, 1); saveData(); renderUI(); };
                    right.appendChild(timeInput); if(task.duration > 0) right.appendChild(document.createTextNode('m'));
                    right.appendChild(delBtn); item.appendChild(name); item.appendChild(right); list.appendChild(item);
                });
            }
            panel.appendChild(list);
            const noticeBoard = document.createElement('div');
            noticeBoard.className = 'xy-notice'; noticeBoard.id = 'xy-notice-board'; noticeBoard.innerText = noticeContent;
            noticeBoard.onclick = () => noticeBoard.classList.toggle('expanded');
            panel.appendChild(noticeBoard); container.appendChild(panel);
        }
    }

    function updateTimerDisplay() {
        const el = document.getElementById('xy-timer-display');
        if (el && currentTask) {
             if(remainingTime > 0) el.innerHTML = `▶ 进行中: ${formatSeconds(remainingTime)}`;
             else el.innerHTML = `⏳ 正在读取时长...`;
        }
    }

    function init() {
        loadData();
        const { groupId } = getPageInfo();
        if (!groupId && taskQueue.length === 0) fetchTasksFromApi();
        renderUI();
        setTimeout(checkCurrentTask, 1500);
    }

    runOneShotNoticeCheck();
    let lastUrl = location.href;
    new MutationObserver(() => { if (location.href !== lastUrl) { lastUrl = location.href; init(); } }).observe(document, {subtree: true, childList: true});
    init();
})();