alien
/
Digital_Human


			
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							<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>livetalking数字人交互平台</title>
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css" rel="stylesheet">
    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.10.0/font/bootstrap-icons.css">
    <style>
        :root {
            --primary-color: #4361ee;
            --secondary-color: #3f37c9;
            --accent-color: #4895ef;
            --background-color: #f8f9fa;
            --card-bg: #ffffff;
            --text-color: #212529;
            --border-radius: 10px;
            --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background-color: var(--background-color);
            color: var(--text-color);
            min-height: 100vh;
            padding-top: 20px;
        }

        .dashboard-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 20px;
        }

        .card {
            background-color: var(--card-bg);
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            border: none;
            margin-bottom: 20px;
            overflow: hidden;
        }

        .card-header {
            background-color: var(--primary-color);
            color: white;
            font-weight: 600;
            padding: 15px 20px;
            border-bottom: none;
        }

        .video-container {
            position: relative;
            width: 100%;
            background-color: #000;
            border-radius: var(--border-radius);
            overflow: hidden;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        video {
            max-width: 100%;
            max-height: 100%;
            display: block;
            border-radius: var(--border-radius);
        }

        .controls-container {
            padding: 20px;
        }

        .btn-primary {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
        }

        .btn-primary:hover {
            background-color: var(--secondary-color);
            border-color: var(--secondary-color);
        }

        .btn-outline-primary {
            color: var(--primary-color);
            border-color: var(--primary-color);
        }

        .btn-outline-primary:hover {
            background-color: var(--primary-color);
            color: white;
        }

        .form-control {
            border-radius: var(--border-radius);
            padding: 10px 15px;
            border: 1px solid #ced4da;
        }

        .form-control:focus {
            border-color: var(--accent-color);
            box-shadow: 0 0 0 0.25rem rgba(67, 97, 238, 0.25);
        }

        .status-indicator {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            display: inline-block;
            margin-right: 5px;
        }

        .status-connected {
            background-color: #28a745;
        }

        .status-disconnected {
            background-color: #dc3545;
        }

        .status-connecting {
            background-color: #ffc107;
        }

        .mode-indicator {
            position: absolute;
            top: 15px;
            left: 15px;
            padding: 5px 10px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            color: white;
            z-index: 10;
        }

        .mode-intro {
            background-color: rgba(67, 97, 238, 0.8);
        }

        .mode-qa {
            background-color: rgba(40, 167, 69, 0.8);
        }

        .asr-container {
            height: 120px;
            overflow-y: auto;
            padding: 15px;
            background-color: #f8f9fa;
            border-radius: var(--border-radius);
            border: 1px solid #ced4da;
        }

        .asr-text {
            margin-bottom: 10px;
            padding: 10px;
            background-color: white;
            border-radius: var(--border-radius);
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
        }

        .user-message {
            background-color: #e3f2fd;
            border-left: 4px solid var(--primary-color);
        }

        .system-message {
            background-color: #f1f8e9;
            border-left: 4px solid #8bc34a;
        }

        .recording-indicator {
            position: absolute;
            top: 15px;
            right: 15px;
            background-color: rgba(220, 53, 69, 0.8);
            color: white;
            padding: 5px 10px;
            border-radius: 20px;
            font-size: 0.8rem;
            display: none;
        }

        .recording-indicator.active {
            display: flex;
            align-items: center;
        }

        .recording-indicator .blink {
            width: 10px;
            height: 10px;
            background-color: #fff;
            border-radius: 50%;
            margin-right: 5px;
            animation: blink 1s infinite;
        }

        @keyframes blink {
            0% { opacity: 1; }
            50% { opacity: 0.3; }
            100% { opacity: 1; }
        }

        .mode-switch {
            margin-bottom: 20px;
        }

        .nav-tabs .nav-link {
            color: var(--text-color);
            border: none;
            padding: 10px 20px;
            border-radius: var(--border-radius) var(--border-radius) 0 0;
        }

        .nav-tabs .nav-link.active {
            color: var(--primary-color);
            background-color: var(--card-bg);
            border-bottom: 3px solid var(--primary-color);
            font-weight: 600;
        }

        .tab-content {
            padding: 20px;
            background-color: var(--card-bg);
            border-radius: 0 0 var(--border-radius) var(--border-radius);
        }

        .settings-panel {
            padding: 15px;
            background-color: #f8f9fa;
            border-radius: var(--border-radius);
            margin-top: 15px;
        }

        .footer {
            text-align: center;
            margin-top: 30px;
            padding: 20px 0;
            color: #6c757d;
            font-size: 0.9rem;
        }
        
        .voice-record-btn {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background-color: var(--primary-color);
            color: white;
            display: flex;
            justify-content: center;
            align-items: center;
            cursor: pointer;
            transition: all 0.2s ease;
            box-shadow: 0 2px 5px rgba(0,0,0,0.2);
            margin: 0 auto;
        }
        
        .voice-record-btn:hover {
            background-color: var(--secondary-color);
            transform: scale(1.05);
        }
        
        .voice-record-btn:active {
            background-color: #dc3545;
            transform: scale(0.95);
        }
        
        .voice-record-btn i {
            font-size: 24px;
        }
        
        .voice-record-label {
            text-align: center;
            margin-top: 10px;
            font-size: 14px;
            color: #6c757d;
        }
        
        .recording-pulse {
            animation: pulse 1.5s infinite;
        }
        
        @keyframes pulse {
            0% {
                box-shadow: 0 0 0 0 rgba(220, 53, 69, 0.7);
            }
            70% {
                box-shadow: 0 0 0 15px rgba(220, 53, 69, 0);
            }
            100% {
                box-shadow: 0 0 0 0 rgba(220, 53, 69, 0);
            }
        }
    </style>
</head>
<body>
    <div class="dashboard-container">
        <div class="row">
            <!-- 视频区域 -->
            <div class="col-lg-12">
                <div class="card">
                    <div class="card-body p-0">
                        <div class="video-container">
                            <video id="video" autoplay playsinline></video>
                            <div class="recording-indicator" id="recording-indicator">
                                <div class="blink"></div>
                                <span>录制中</span>
                            </div>
                            <div class="mode-indicator" id="mode-indicator" style="display: none;"></div>
                        </div>
                        
                        <div class="controls-container">
                            <div class="row">
                                <div class="col-md-6 mb-3" style="display: none;">
                                    <button class="btn btn-primary w-100" id="startBtn">
                                        <i class="bi bi-play-fill"></i> 开始连接
                                    </button>
                                    <button class="btn btn-danger w-100" id="stopBtn" style="display: none;">
                                        <i class="bi bi-stop-fill"></i> 停止连接
                                    </button>
                                </div>

                            </div>

                            <!-- 对话模式已移除 - 现在通过独立API /api/chat 调用 -->

                            <div class="settings-panel mt-3">
                                <div class="row">
                                    <div class="col-md-12">
                                        <div class="form-check form-switch mb-3" style="display: none;">
                                            <input class="form-check-input" type="checkbox" id="use-stun">
                                            <label class="form-check-label" for="use-stun">使用STUN服务器</label>
                                        </div>
                                    </div>
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>

    <!-- 隐藏的会话ID -->
    <input type="hidden" id="sessionid" value="0">


    <script src="client-v2.js"></script>
    <script src="srs.sdk.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/js/bootstrap.bundle.min.js"></script>
    <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
    <script>
        $(document).ready(function() {
            function updateConnectionStatus(status) {
                const statusIndicator = $('#connection-status');
                const statusText = $('#status-text');
                
                statusIndicator.removeClass('status-connected status-disconnected status-connecting');
                
                switch(status) {
                    case 'connected':
                        statusIndicator.addClass('status-connected');
                        statusText.text('已连接');
                        break;
                    case 'connecting':
                        statusIndicator.addClass('status-connecting');
                        statusText.text('连接中...');
                        break;
                    case 'disconnected':
                    default:
                        statusIndicator.addClass('status-disconnected');
                        statusText.text('未连接');
                        break;
                }
            }

            // 更新模式指示器
            function updateModeIndicator(mode, playIndex = 1, totalCount = 8) {
                const modeIndicator = $('#mode-indicator');
                
                if (mode === 'intro') {
                    modeIndicator.text(`介绍模式 (${playIndex}/${totalCount})`);
                    modeIndicator.removeClass('mode-qa').addClass('mode-intro');
                    modeIndicator.show();
                } else if (mode === 'qa') {
                    modeIndicator.text('问答模式');
                    modeIndicator.removeClass('mode-intro').addClass('mode-qa');
                    modeIndicator.show();
                } else {
                    modeIndicator.hide();
                }
            }
            
            // 计算文本播放时长（毫秒）
            function calculatePlayDuration(text) {
                // 中文字符和英文单词的播放速度不同
                const chineseChars = (text.match(/[\u4e00-\u9fa5]/g) || []).length;
                const englishWords = (text.match(/[a-zA-Z]+/g) || []).length;
                const otherChars = text.length - chineseChars - englishWords;
                
                // 中文约 4-5 字/秒，英文约 3-4 词/秒，其他字符约 5 个/秒
                // 加上 1.5 秒的开头和结尾缓冲时间
                const duration = (chineseChars / 4.5 + englishWords / 3.5 + otherChars / 5) * 1000 + 1500;
                
                // 最小 3 秒，最大 20 秒
                return Math.max(3000, Math.min(20000, duration));
            }
            
            // 处理介绍播放完成，自动播放下一条
            function handleIntroPlayCompleted() {
                if (!isDuringIntro) return;
                
                fetch('/intro_play_completed', {
                    body: JSON.stringify({
                        sessionid: parseInt(document.getElementById('sessionid').value),
                    }),
                    headers: {
                        'Content-Type': 'application/json'
                    },
                    method: 'POST'
                }).then(function(response) {
                    return response.json();
                }).then(function(data) {
                    if (data.code === 0 && data.text) {
                        console.log('下一条介绍内容开始播放:', data.text);
                        // 更新模式指示器
                        if (data.mode === 'intro') {
                            updateModeIndicator('intro', data.play_index, data.total_count);
                        }
                        // 根据文本长度计算播放时长，再触发下一条
                        const playDuration = calculatePlayDuration(data.text);
                        console.log('计算播放时长:', playDuration, 'ms');
                        setTimeout(handleIntroPlayCompleted, playDuration);
                    } else if (data.code === 0 && !data.text) {
                        console.log('介绍内容播放完成');
                        // 标记介绍过程结束
                        isDuringIntro = false;
                        // 隐藏模式指示器
                        updateModeIndicator('');
                    } else {
                        console.error('获取下一条介绍内容失败:', data.msg);
                    }
                }).catch(function(error) {
                    console.error('获取下一条介绍内容错误:', error);
                });
            }
            
            //播本地生活App商品介绍语音（使用新API）
            function playKnowledgeIntro() {
                fetch('/knowledge_intro', {
                    body: JSON.stringify({
                        sessionid: parseInt(document.getElementById('sessionid').value),
                    }),
                    headers: {
                        'Content-Type': 'application/json'
                    },
                    method: 'POST'
                }).then(function(response) {
                    return response.json();
                }).then(function(data) {
                    if (data.code === 0) {
                        console.log('商品介绍开始播放:', data.text);
                        // 更新模式指示器为介绍模式
                        if (data.mode === 'intro') {
                            updateModeIndicator('intro', data.play_index, data.total_count);
                        }
                        // 启动自动续播逻辑，根据文本长度计算播放时长
                        const playDuration = calculatePlayDuration(data.text);
                        console.log('第一条播放时长:', playDuration, 'ms');
                        setTimeout(handleIntroPlayCompleted, playDuration);
                    } else {
                        console.error('商品介绍播放失败:', data.msg);
                    }
                }).catch(function(error) {
                    console.error('商品介绍播放错误:', error);
                    // 降级到旧的硬编码方式
                    fallbackPlayKnowledgeIntro();
                });
            }
                        
            // 降级播放函数（兼容旧版本）
            function fallbackPlayKnowledgeIntro() {
                const introText = "欢迎使用本地生活App！我们为您提供丰富的本地商品和服务：美食外卖汇聚各类餐厅美食，快速配送到家；休闲娱乐提供电影院、KTV、游乐场等娱乐场所优惠；生活服务涵盖家政、维修、美容美发等便民服务；附近团购有周边商户超值团购，省钱又方便。现在您可以随时查询商品信息，我们会为您推荐最合适的本地服务！";
                            
                fetch('/human', {
                    body: JSON.stringify({
                        text: introText,
                        type: 'echo',
                        interrupt: false,
                        during_intro: true,  //标记为介绍过程中
                        sessionid: parseInt(document.getElementById('sessionid').value),
                    }),
                    headers: {
                        'Content-Type': 'application/json'
                    },
                    method: 'POST'
                });
            }

            // 智能问答功能
            function handleQuestion(question) {
                //简单的关键词识别来判断应该使用哪个知识库
                const techKeywords = ['AI', '机器学习', '深度学习', '神经网络', 'WebRTC', 'Python', 'JavaScript', '算法', '编程', '技术', '开发', '代码'];
                const lifeKeywords = ['健康', '生活', '饮食', '运动', '娱乐', '旅游', '家庭', '工作', '学习', '情感', '日常'];
                const localLivingKeywords = ['美食', '外卖', '餐厅', '配送', '休闲', '娱乐', '生活服务', '团购', '会员', '积分', '优惠', '客服', '退款', '预约', '支付', '热门商圈', '安全保障', '评价', '售后', '优惠券', 'App', '本地', '生活', '服务'];
                                        
                let knowledgeBase = '通用';
                                        
                if (techKeywords.some(keyword => question.includes(keyword))) {
                    knowledgeBase = '技术文档库';
                } else if (localLivingKeywords.some(keyword => question.includes(keyword))) {
                    knowledgeBase = '本地生活 App';
                } else if (lifeKeywords.some(keyword => question.includes(keyword))) {
                    knowledgeBase = '生活百科库';
                }
                                        
                return knowledgeBase;
            }
                        
            // 页面加载后自动连接
            setTimeout(function() {
                updateConnectionStatus('connecting');
                
                // 设置一个标志，用于跟踪 track 事件是否已触发
                let trackEventFired = false;
                
                // 先保存原始的 onWebRTCConnected 回调
                const originalOnConnected = window.onWebRTCConnected || function() {};
                
                // 重写 onWebRTCConnected，在 track 事件后才更新 UI 状态
                window.onWebRTCConnected = function() {
                    console.log('✅ WebRTC connected callback triggered');
                    
                    const video = document.getElementById('video');
                    if (video) {
                        console.log('Video element found, checking stream...');
                        const stream = video.srcObject;
                        if (stream) {
                            console.log('Stream ID:', stream.id);
                            console.log('Video tracks:', stream.getVideoTracks());
                            console.log('Audio tracks:', stream.getAudioTracks());
                            
                            // 检查视频是否有实际数据
                            video.onloadedmetadata = function() {
                                console.log('Video metadata loaded:', {
                                    width: video.videoWidth,
                                    height: video.videoHeight,
                                    readyState: video.readyState
                                });
                            };
                        } else {
                            console.error('❌ No stream attached to video element!');
                        }
                    }
                    
                    trackEventFired = true;
                    updateConnectionStatus('connected');
                    
                    // 连接成功后延迟播放介绍
                    setTimeout(function() {
                        // 标记进入介绍过程
                        isDuringIntro = true;
                        // 自动播放介绍语音
                        playKnowledgeIntro();
                    }, 2000);
                    
                    // 调用原始回调
                    if (typeof originalOnConnected === 'function') {
                        originalOnConnected();
                    }
                };
                
                // 启动 WebRTC 连接
                start();
                
                // 添加定时器检查视频流是否已加载（作为备用方案）
                let connectionCheckTimer = setInterval(function() {
                    const video = document.getElementById('video');
                    // 检查视频是否有数据
                    if (video.readyState >= 3 && video.videoWidth > 0) {
                        console.log('Video loaded via readyState check:', video.videoWidth + 'x' + video.videoHeight);
                        
                        // 如果 track 事件还没触发，也更新状态
                        if (!trackEventFired) {
                            updateConnectionStatus('connected');
                            trackEventFired = true;
                            
                            // 连接成功
                            setTimeout(function() {
                                // 标记进入介绍过程
                                isDuringIntro = true;
                                // 自动播放介绍语音
                                playKnowledgeIntro();
                            }, 2000);
                        }
                        
                        clearInterval(connectionCheckTimer);
                    }
                }, 2000); // 每 2 秒检查一次
                
                // 60 秒后如果还是连接中状态，就停止检查
                setTimeout(function() {
                    if (connectionCheckTimer) {
                        clearInterval(connectionCheckTimer);
                    }
                    // 如果 60 秒后 track 事件还没触发，检查连接状态
                    if (!trackEventFired) {
                        console.warn('⚠️ WebRTC track event not fired after 60 seconds');
                        // 尝试重新连接
                        updateConnectionStatus('disconnected');
                        alert('连接超时，请检查网络连接或刷新页面重试');
                    }
                }, 60000);
            }, 500);
            function addChatMessage(message, type = 'user') {
                const messagesContainer = $('#chat-messages');
                const messageClass = type === 'user' ? 'user-message' : 'system-message';
                const sender = type === 'user' ? '您' : '数字人';
                
                const messageElement = $(`
                    <div class="asr-text ${messageClass}">
                        ${sender}: ${message}
                    </div>
                `);
                
                messagesContainer.append(messageElement);
                messagesContainer.scrollTop(messagesContainer[0].scrollHeight);
            }

            // 标记是否在介绍过程中
            let isDuringIntro = false;
            
            // 开始/停止按钮
            $('#startBtn').click(function() {
                updateConnectionStatus('connecting');
                start();
                $(this).hide();
                $('#stopBtn').show();
                
                // 添加定时器检查视频流是否已加载
                let connectionCheckTimer = setInterval(function() {
                    const video = document.getElementById('video');
                    // 检查视频是否有数据
                    if (video.readyState >= 3 && video.videoWidth > 0) {
                        updateConnectionStatus('connected');
                        clearInterval(connectionCheckTimer);
                        // 连接成功
                        setTimeout(function() {
                            // 标记进入介绍过程
                            isDuringIntro = true;
                            // 自动播放介绍语音
                            playKnowledgeIntro();
                        }, 2000);
                    }
                }, 2000); // 每2秒检查一次
                
                // 60秒后如果还是连接中状态，就停止检查
                setTimeout(function() {
                    if (connectionCheckTimer) {
                        clearInterval(connectionCheckTimer);
                    }
                }, 60000);
            });

            $('#stopBtn').click(function() {
                stop();
                $(this).hide();
                $('#startBtn').show();
                updateConnectionStatus('disconnected');
            });

            // 录制功能
            $('#btn_start_record').click(function() {
                console.log('Starting recording...');
                fetch('/record', {
                    body: JSON.stringify({
                        type: 'start_record',
                        sessionid: parseInt(document.getElementById('sessionid').value),
                    }),
                    headers: {
                        'Content-Type': 'application/json'
                    },
                    method: 'POST'
                }).then(function(response) {
                    if (response.ok) {
                        console.log('Recording started.');
                        $('#btn_start_record').prop('disabled', true);
                        $('#btn_stop_record').prop('disabled', false);
                        $('#recording-indicator').addClass('active');
                    } else {
                        console.error('Failed to start recording.');
                    }
                }).catch(function(error) {
                    console.error('Error:', error);
                });
            });

            $('#btn_stop_record').click(function() {
                console.log('Stopping recording...');
                fetch('/record', {
                    body: JSON.stringify({
                        type: 'end_record',
                        sessionid: parseInt(document.getElementById('sessionid').value),
                    }),
                    headers: {
                        'Content-Type': 'application/json'
                    },
                    method: 'POST'
                }).then(function(response) {
                    if (response.ok) {
                        console.log('Recording stopped.');
                        $('#btn_start_record').prop('disabled', false);
                        $('#btn_stop_record').prop('disabled', true);
                        $('#recording-indicator').removeClass('active');
                    } else {
                        console.error('Failed to stop recording.');
                    }
                }).catch(function(error) {
                    console.error('Error:', error);
                });
            });

            // 继续播放之前的内容（问答结束后）
            $('#btn_resume_interrupted').click(function() {
                console.log('Continuing playback after QA...');
                fetch('/continue_after_qa', {
                    body: JSON.stringify({
                        sessionid: parseInt(document.getElementById('sessionid').value),
                    }),
                    headers: {
                        'Content-Type': 'application/json'
                    },
                    method: 'POST'
                }).then(function(response) {
                    return response.json();
                }).then(function(data) {
                    if (data.code === 0) {
                        console.log('Previous content continued:', data.msg);
                        // 更新模式指示器为介绍模式
                        if (data.mode === 'intro') {
                            updateModeIndicator('intro', data.play_index, data.total_count);
                            // 标记为介绍过程
                            isDuringIntro = true;
                            // 启动自动续播逻辑
                            setTimeout(handleIntroPlayCompleted, 5000); // 假设每条介绍播放时间约为5秒
                        }
                    } else {
                        console.error('Failed to continue previous content:', data.msg);
                    }
                }).catch(function(error) {
                    console.error('Error continuing previous content:', error);
                });
            });

            $('#echo-form').on('submit', function(e) {
                e.preventDefault();
                var message = $('#message').val();
                if (!message.trim()) return;
                
                console.log('Sending echo message:', message);
                
                fetch('/human', {
                    body: JSON.stringify({
                        text: message,
                        type: 'echo',
                        interrupt: true,
                        sessionid: parseInt(document.getElementById('sessionid').value),
                    }),
                    headers: {
                        'Content-Type': 'application/json'
                    },
                    method: 'POST'
                });
                
                $('#message').val('');
            });

            // 聊天模式表单提交
            $('#chat-form').on('submit', function(e) {
                e.preventDefault();
                var message = $('#chat-message').val();
                var selectedKnowledgeBase = $('#knowledge-base-select').val(); // 获取用户选择的知识库
                if (!message.trim()) return;
                
                // 检查sessionid是否有效
                var sessionid = parseInt(document.getElementById('sessionid').value);
                if (sessionid === 0) {
                    return;
                }
                
                console.log('Sending chat message:', message);
                console.log('Selected knowledge base:', selectedKnowledgeBase);
                console.log('Session ID:', sessionid);
                
                // 如果用户选择了特定知识库，使用该知识库；否则智能识别
                const knowledgeBase = selectedKnowledgeBase && selectedKnowledgeBase !== '' ? selectedKnowledgeBase : handleQuestion(message);
                
                // 更新模式指示器为问答模式
                updateModeIndicator('qa');
                
                fetch('/human', {
                    body: JSON.stringify({
                        text: message,
                        type: 'chat',
                        interrupt: true,
                        during_intro: isDuringIntro,  // 根据当前是否在介绍过程中设置
                        sessionid: sessionid,
                        knowledge_base: knowledgeBase  // 添加知识库信息
                    }),
                    headers: {
                        'Content-Type': 'application/json'
                    },
                    method: 'POST'
                }).then(function(response) {
                    return response.json();
                }).then(function(data) {
                    console.log('Response from server:', data);
                }).catch(function(error) {
                    console.error('Error sending message:', error);
                });
                
                // 保留isDuringIntro状态，不要立即设置为false，以便后端正确处理中断
                // 只有在介绍播放完成后才设置为false
                
                addChatMessage(message, 'user');
                $('#chat-message').val('');
            });

            // 按住说话功能
            let mediaRecorder;
            let audioChunks = [];
            let isRecording = false;
            let recognition;
            
            // 检查浏览器是否支持语音识别
            const isSpeechRecognitionSupported = 'webkitSpeechRecognition' in window || 'SpeechRecognition' in window;
            
            if (isSpeechRecognitionSupported) {
                recognition = new (window.SpeechRecognition || window.webkitSpeechRecognition)();
                recognition.continuous = true;
                recognition.interimResults = true;
                recognition.lang = 'zh-CN';
                
                recognition.onresult = function(event) {
                    let interimTranscript = '';
                    let finalTranscript = '';
                    
                    for (let i = event.resultIndex; i < event.results.length; ++i) {
                        if (event.results[i].isFinal) {
                            finalTranscript += event.results[i][0].transcript;
                        } else {
                            interimTranscript += event.results[i][0].transcript;
                            $('#chat-message').val(interimTranscript);
                        }
                    }
                    
                    if (finalTranscript) {
                        $('#chat-message').val(finalTranscript);
                    }
                };
                
                recognition.onerror = function(event) {
                    console.error('语音识别错误:', event.error);
                };
            }
            
            // 按住说话按钮事件
            $('#voice-record-btn').on('mousedown touchstart', function(e) {
                e.preventDefault();
                startRecording();
            }).on('mouseup mouseleave touchend', function() {
                if (isRecording) {
                    stopRecording();
                }
            });
            
            // 开始录音
            function startRecording() {
                if (isRecording) return;
                
                navigator.mediaDevices.getUserMedia({ audio: true })
                    .then(function(stream) {
                        audioChunks = [];
                        mediaRecorder = new MediaRecorder(stream);
                        
                        mediaRecorder.ondataavailable = function(e) {
                            if (e.data.size > 0) {
                                audioChunks.push(e.data);
                            }
                        };
                        
                        mediaRecorder.start();
                        isRecording = true;
                        
                        $('#voice-record-btn').addClass('recording-pulse');
                        $('#voice-record-btn').css('background-color', '#dc3545');
                        
                        if (recognition) {
                            recognition.start();
                        }
                    })
                    .catch(function(error) {
                        console.error('无法访问麦克风:', error);
                        alert('无法访问麦克风，请检查浏览器权限设置。');
                    });
            }

            function stopRecording() {
                if (!isRecording) return;
                
                mediaRecorder.stop();
                isRecording = false;
                
                // 停止所有音轨
                mediaRecorder.stream.getTracks().forEach(track => track.stop());
                
                // 视觉反馈恢复
                $('#voice-record-btn').removeClass('recording-pulse');
                $('#voice-record-btn').css('background-color', '');
                
                // 停止语音识别
                if (recognition) {
                    recognition.stop();
                }
                
                // 获取识别的文本并发送
                setTimeout(function() {
                    const recognizedText = $('#chat-message').val().trim();
                    if (recognizedText) {
                        // 更新模式指示器为问答模式
                        updateModeIndicator('qa');
                        
                        // 检查sessionid是否有效
                        var sessionid = parseInt(document.getElementById('sessionid').value);
                        if (sessionid === 0) {
                            return;
                        }
                        
                        // 发送识别的文本
                        var selectedKnowledgeBase = $('#knowledge-base-select').val(); // 获取用户选择的知识库
                        const knowledgeBase = selectedKnowledgeBase && selectedKnowledgeBase !== '' ? selectedKnowledgeBase : handleQuestion(recognizedText);
                        console.log('Sending voice message:', recognizedText);
                        console.log('Session ID:', sessionid);
                        fetch('/human', {
                            body: JSON.stringify({
                                text: recognizedText,
                                type: 'chat',
                                interrupt: true,
                                during_intro: isDuringIntro,  // 根据当前是否在介绍过程中设置
                                sessionid: sessionid,
                                knowledge_base: knowledgeBase
                            }),
                            headers: {
                                'Content-Type': 'application/json'
                            },
                            method: 'POST'
                        }).then(function(response) {
                            return response.json();
                        }).then(function(data) {
                            console.log('Response from server:', data);
                        }).catch(function(error) {
                            console.error('Error sending message:', error);
                        });
                        
                        // 保留isDuringIntro状态，不要立即设置为false，以便后端正确处理中断
                        
                        addChatMessage(recognizedText, 'user');
                        $('#chat-message').val('');
                    }
                }, 500); 
            }

            // WebRTC 相关功能
            if (typeof window.onWebRTCConnected === 'function') {
                const originalOnConnected = window.onWebRTCConnected;
                window.onWebRTCConnected = function() {
                    updateConnectionStatus('connected');
                    if (originalOnConnected) originalOnConnected();
                };
            } else {
                window.onWebRTCConnected = function() {
                    updateConnectionStatus('connected');
                };
            }

            // 当连接断开时更新状态
            if (typeof window.onWebRTCDisconnected === 'function') {
                const originalOnDisconnected = window.onWebRTCDisconnected;
                window.onWebRTCDisconnected = function() {
                    updateConnectionStatus('disconnected');
                    if (originalOnDisconnected) originalOnDisconnected();
                };
            } else {
                window.onWebRTCDisconnected = function() {
                    updateConnectionStatus('disconnected');
                };
            }

            // SRS WebRTC播放功能
            var sdk = null; // 全局处理器，用于在重新发布时进行清理

            function startPlay() {
                // 关闭之前的连接
                if (sdk) {
                    sdk.close();
                }
                
                sdk = new SrsRtcWhipWhepAsync();
                $('#video').prop('srcObject', sdk.stream);
                
                var host = window.location.hostname;
                var url = "http://" + host + ":1985/rtc/v1/whep/?app=live&stream=livestream";
                
                sdk.play(url).then(function(session) {
                    console.log('WebRTC播放已启动，会话ID:', session.sessionid);
                }).catch(function(reason) {
                    sdk.close();
                    console.error('WebRTC播放失败:', reason);
                });
            }
        });
    </script>
</body>
</html>