// ==UserScript==
// @name         文理专用
// @namespace    http://tampermonkey.net/
// @version      2.1
// @description  文理专用
// @author       YourName
// @match        *://*.ytccr.com/*
// @grant        GM_addStyle
// @grant        GM_setValue
// @grant        GM_getValue
// ==/UserScript==

(function() {
    'use strict';

    // 添加 CSS 样式
    GM_addStyle(`
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }

        .control-panel {
            position: fixed;
            top: 20px;
            right: 20px;
            background: rgba(0, 0, 0, 0.85);
            border-radius: 15px;
            padding: 20px;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.5);
            z-index: 1000;
            width: 320px;
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 215, 0, 0.3);
            transition: all 0.3s ease;
        }

        .control-panel:hover {
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.7);
            transform: translateY(-5px);
        }

        .panel-title {
            font-size: 1.4rem;
            margin-bottom: 15px;
            color: #ffd700;
            text-align: center;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
        }

        .panel-title i {
            font-size: 1.6rem;
        }

        .status-indicator {
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
        }

        .status-light {
            width: 15px;
            height: 15px;
            border-radius: 50%;
            background: #ff4b4b;
            margin-right: 10px;
            box-shadow: 0 0 10px #ff4b4b;
        }

        .status-light.active {
            background: #4bff4b;
            box-shadow: 0 0 10px #4bff4b;
        }

        .status-text {
            font-size: 1.1rem;
            font-weight: 500;
        }

        .timer-display {
            background: rgba(50, 50, 100, 0.5);
            border-radius: 10px;
            padding: 10px;
            text-align: center;
            margin-bottom: 20px;
        }

        .highlight {
            color: #ffd700;
            font-weight: bold;
            font-size: 1.3rem;
        }

        .action-buttons {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
            margin-bottom: 15px;
        }

        .btn {
            padding: 10px 20px;
            font-size: 1rem;
            border: none;
            border-radius: 50px;
            cursor: pointer;
            transition: all 0.3s ease;
            background: linear-gradient(45deg, #ff8c00, #ffd700);
            color: #1a1a2e;
            font-weight: bold;
            box-shadow: 0 4px 8px rgba(0,0,0,0.3);
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
            min-width: 120px;
            justify-content: center;
        }

        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 12px rgba(0,0,0,0.4);
        }

        .btn:active {
            transform: translateY(1px);
        }

        .btn-stop {
            background: linear-gradient(45deg, #ff416c, #ff4b2b);
        }

        .btn-auto-jump {
            background: linear-gradient(45deg, #1e90ff, #00bfff);
        }

        .speed-control {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 15px;
        }

        .speed-input {
            flex: 1;
            padding: 10px;
            border-radius: 5px;
            border: 1px solid #ffd700;
            background: rgba(0,0,0,0.5);
            color: white;
            text-align: center;
            font-size: 1rem;
        }

        .speed-label {
            color: #ffd700;
            font-weight: bold;
            min-width: 80px;
        }

        .auto-jump-control {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 15px;
        }

        .auto-jump-input {
            flex: 1;
            padding: 10px;
            border-radius: 5px;
            border: 1px solid #00bfff;
            background: rgba(0,0,0,0.5);
            color: white;
            text-align: center;
            font-size: 1rem;
        }

        .auto-jump-label {
            color: #00bfff;
            font-weight: bold;
            min-width: 80px;
        }
    `);

    // 创建控制面板 HTML
    const controlPanelHTML = `
        <div class="control-panel">
            <div class="panel-title">
                <i>🎮</i>
                <span>视频控制面板</span>
            </div>
            <div class="status-indicator">
                <div class="status-light active"></div>
                <div class="status-text">运行中</div>
            </div>
            <div class="timer-display">
                当前时间: <span class="highlight">00:00:00</span>
            </div>
            <div class="speed-control">
                <span class="speed-label">播放速度:</span>
                <input type="number" class="speed-input" id="speed-input" min="0.1" max="16" step="0.1" value="2.0">
                <button class="btn" id="apply-speed">应用</button>
            </div>
            <div class="auto-jump-control">
                <span class="auto-jump-label">自动跳转:</span>
                <input type="number" class="auto-jump-input" id="auto-jump-input" min="5" max="300" step="5" value="30">
                <button class="btn btn-auto-jump" id="toggle-auto-jump">开启</button>
            </div>
            <div class="action-buttons">
                <button class="btn" id="speed-up">加速播放</button>
                <button class="btn" id="normal-speed">正常速度</button>
                <button class="btn" id="jump-to-end">跳至结尾</button>
                <button class="btn btn-stop" id="stop-video">停止</button>
            </div>
        </div>
    `;

    // 插入到页面
    document.body.insertAdjacentHTML('afterbegin', controlPanelHTML);

    // 存储当前状态
    let isSpeedUpEnabled = false;
    let isAutoJumpEnabled = false;
    let targetSpeed = GM_getValue('targetSpeed', 2.0);
    let autoJumpInterval = GM_getValue('autoJumpInterval', 30);
    let autoJumpTimer = null;

    // 初始化输入框值
    document.getElementById('speed-input').value = targetSpeed;
    document.getElementById('auto-jump-input').value = autoJumpInterval;

    // 获取所有视频元素
    function getAllVideos() {
        return document.querySelectorAll('video');
    }

    // 应用速度到所有视频
    function applySpeedToVideos(speed) {
        const videos = getAllVideos();
        videos.forEach(video => {
            try {
                video.playbackRate = speed;
            } catch (e) {
                console.log('设置播放速度失败:', e);
            }
        });
    }

    // 跳至视频结尾
    function jumpToEnd() {
        const videos = getAllVideos();
        videos.forEach(video => {
            if (!isNaN(video.duration)) {
                video.currentTime = video.duration - 0.5;
            }
        });
    }

    // 开始/停止自动跳转
    function toggleAutoJump(enable) {
        if (enable) {
            // 停止现有定时器
            if (autoJumpTimer) clearInterval(autoJumpTimer);

            // 设置新定时器
            autoJumpTimer = setInterval(() => {
                jumpToEnd();
                console.log(`自动跳转至结尾 (间隔: ${autoJumpInterval}秒)`);
            }, autoJumpInterval * 1000);

            // 立即执行一次
            jumpToEnd();

            // 更新UI
            document.getElementById('toggle-auto-jump').textContent = '关闭';
            document.getElementById('toggle-auto-jump').classList.add('btn-stop');
            document.getElementById('toggle-auto-jump').classList.remove('btn-auto-jump');
        } else {
            // 停止定时器
            if (autoJumpTimer) clearInterval(autoJumpTimer);
            autoJumpTimer = null;

            // 更新UI
            document.getElementById('toggle-auto-jump').textContent = '开启';
            document.getElementById('toggle-auto-jump').classList.add('btn-auto-jump');
            document.getElementById('toggle-auto-jump').classList.remove('btn-stop');
        }
    }

    // 监听DOM变化（动态加载的视频）
    const observer = new MutationObserver((mutations) => {
        mutations.forEach(mutation => {
            if (mutation.addedNodes.length) {
                if (isSpeedUpEnabled) {
                    applySpeedToVideos(targetSpeed);
                }
            }
        });
    });

    // 开始监听整个文档
    observer.observe(document, {
        childList: true,
        subtree: true
    });

    // 应用自定义速度
    document.getElementById('apply-speed').addEventListener('click', () => {
        const newSpeed = parseFloat(document.getElementById('speed-input').value);
        if (!isNaN(newSpeed)) {
            targetSpeed = Math.max(0.1, Math.min(16, newSpeed));
            document.getElementById('speed-input').value = targetSpeed.toFixed(1);
            GM_setValue('targetSpeed', targetSpeed);
            if (isSpeedUpEnabled) {
                applySpeedToVideos(targetSpeed);
            }
            alert(`已设置播放速度为 ${targetSpeed}x`);
        } else {
            alert('请输入有效的数字');
        }
    });

    // 切换自动跳转
    document.getElementById('toggle-auto-jump').addEventListener('click', () => {
        const newInterval = parseInt(document.getElementById('auto-jump-input').value);
        if (!isNaN(newInterval) && newInterval >= 5 && newInterval <= 300) {
            autoJumpInterval = newInterval;
            GM_setValue('autoJumpInterval', autoJumpInterval);

            isAutoJumpEnabled = !isAutoJumpEnabled;
            toggleAutoJump(isAutoJumpEnabled);

            alert(isAutoJumpEnabled
                ? `已开启自动跳转 (每 ${autoJumpInterval} 秒)`
                : '已关闭自动跳转');
        } else {
            alert('请输入5-300之间的整数');
        }
    });

    // 加速按钮
    document.getElementById('speed-up').addEventListener('click', () => {
        isSpeedUpEnabled = true;
        applySpeedToVideos(targetSpeed);
        document.querySelector('.status-light').classList.add('active');
        document.querySelector('.status-text').textContent = '加速中';
        alert(`已加速至 ${targetSpeed}x`);
    });

    // 正常速度按钮
    document.getElementById('normal-speed').addEventListener('click', () => {
        isSpeedUpEnabled = false;
        applySpeedToVideos(1.0);
        document.querySelector('.status-light').classList.remove('active');
        document.querySelector('.status-text').textContent = '运行中';
        alert('已恢复正常速度');
    });

    // 跳至视频结尾
    document.getElementById('jump-to-end').addEventListener('click', () => {
        jumpToEnd();
        alert('已跳至视频结尾！');
    });

    // 停止播放
    document.getElementById('stop-video').addEventListener('click', () => {
        const videos = getAllVideos();
        videos.forEach(video => {
            video.pause();
        });
        alert('已停止播放！');
    });

    // 输入框回车事件
    document.getElementById('speed-input').addEventListener('keypress', (e) => {
        if (e.key === 'Enter') {
            document.getElementById('apply-speed').click();
        }
    });

    document.getElementById('auto-jump-input').addEventListener('keypress', (e) => {
        if (e.key === 'Enter') {
            document.getElementById('toggle-auto-jump').click();
        }
    });

    // 更新时间显示
    setInterval(() => {
        const timeDisplay = document.querySelector('.highlight');
        if (timeDisplay) {
            timeDisplay.textContent = new Date().toLocaleTimeString();
        }
    }, 1000);
})();