// static/js/chat.js

new Vue({
    el: '#chat-app',
    delimiters: ['[[', ']]'],
    data() {
        return {
            socket: null,
            messages: [],
            newMessage: '',
            status: '', // 用于显示“聆听中...”或“思考中...”
            isRecording: false,
            recognition: null
        };
    },
    created() {
        this.initSocket();
        this.initSpeechRecognition();
        this.startLive(); // 页面加载后自动启动 live 模式
    },
    methods: {
        initSocket() {
            // 初始化 SocketIO 连接
            this.socket = io.connect('http://' + document.domain + ':' + location.port + '/');

            this.socket.on('connect', () => {
                console.log('Connected to SocketIO server');
            });

            this.socket.on('receive_message', (data) => {
                this.addMessage(data.type, data.content, data.username, data.timetext);
            });

            this.socket.on('load_messages', (data) => {
                data.forEach(message => {
                    this.addMessage(message.type, message.content, message.username, message.timetext);
                });
            });

            this.socket.on('disconnect', () => {
                console.log('Disconnected from SocketIO server');
            });
        },
        initSpeechRecognition() {
            if ('webkitSpeechRecognition' in window || 'SpeechRecognition' in window) {
                const SpeechRecognition = window.SpeechRecognition || window.webkitSpeechRecognition;
                this.recognition = new SpeechRecognition();
                this.recognition.lang = 'zh-CN';
                this.recognition.interimResults = false;
                this.recognition.maxAlternatives = 1;

                this.recognition.onstart = () => {
                    this.isRecording = true;
                    this.status = '聆听中...';
                    this.$set(this, 'recordIconSrc', '/static/images/recording.png');
                };

                this.recognition.onresult = (event) => {
                    const transcript = event.results[0][0].transcript;
                    this.addMessage('user', transcript, '您');
                    this.socket.emit('send_message', {
                        username: '您',
                        message: transcript,
                        type: 'user'
                    });
                    this.status = '思考中...';
                    setTimeout(() => {
                        this.status = '';
                    }, 2000);
                };

                this.recognition.onerror = (event) => {
                    console.error('语音识别错误:', event.error);
                    this.status = '语音识别失败';
                    this.isRecording = false;
                    this.$set(this, 'recordIconSrc', '/static/images/record.png');
                };

                this.recognition.onend = () => {
                    this.isRecording = false;
                    this.$set(this, 'recordIconSrc', '/static/images/record.png');
                };
            } else {
                alert('当前浏览器不支持语音识别功能');
            }
        },
        toggleChat() {
            const chatContainer = document.getElementById('chat-container');
            const toggleButton = document.getElementById('toggle-chat');
            if (chatContainer.classList.contains('hidden')) {
                chatContainer.classList.remove('hidden');
                toggleButton.textContent = '关闭聊天';
            } else {
                chatContainer.classList.add('hidden');
                toggleButton.textContent = '打开聊天';
            }
        },
        toggleRecording() {
            if (this.recognition) {
                if (!this.isRecording) {
                    this.recognition.start();
                } else {
                    this.recognition.stop();
                }
            }
        },
        sendMessage() {
            const message = this.newMessage.trim();
            if (message === '') return;
            this.addMessage('user', message, '您');
            this.socket.emit('send_message', {
                username: '您',
                message: message,
                type: 'user'
            });
            this.newMessage = '';
            this.status = '思考中...';
            setTimeout(() => {
                this.status = '';
            }, 2000);
        },
        addMessage(type, content, username, timestamp) {
            const message = { type, content, username, timetext: timestamp };
            this.messages.push(message);
            // 只保留最近三条消息
            if (this.messages.length > 3) {
                this.messages.shift();
            }
            // 滚动到最新消息
            this.$nextTick(() => {
                const messagesDiv = document.getElementById('messages');
                if (messagesDiv) {
                    messagesDiv.scrollTop = messagesDiv.scrollHeight;
                }
            });
        },
        getCurrentTime() {
            const now = new Date();
            const year = now.getFullYear();
            const month = String(now.getMonth() + 1).padStart(2, '0');
            const day = String(now.getDate()).padStart(2, '0');
            const hours = String(now.getHours()).padStart(2, '0');
            const minutes = String(now.getMinutes()).padStart(2, '0');
            const seconds = String(now.getSeconds()).padStart(2, '0');
            return `${year}-${month}-${day} ${hours}:${minutes}:${seconds}`;
        },
        startLive() {
            // 调用启动 live 模式的 API
            fetch('/api/start-live', {
                method: 'POST'
            })
            .then(response => response.json())
            .then(data => {
                if (data.result === 'successful') {
                    this.$notify({
                        title: '成功',
                        message: '已开启 live 模式！',
                        type: 'success',
                    });
                } else {
                    this.$notify({
                        title: '失败',
                        message: data.message || '启动 live 模式失败',
                        type: 'error',
                    });
                }
            })
            .catch(error => {
                console.error('启动 live 模式时出错:', error);
                this.$notify({
                    title: '错误',
                    message: '启动 live 模式时出错',
                    type: 'error',
                });
            });
        },
        stopLive() {
            // 调用停止 live 模式的 API
            fetch('/api/stop-live', {
                method: 'POST'
            })
            .then(response => response.json())
            .then(data => {
                if (data.result === 'successful') {
                    this.$notify({
                        title: '成功',
                        message: '已关闭 live 模式！',
                        type: 'success',
                    });
                } else {
                    this.$notify({
                        title: '失败',
                        message: data.message || '停止 live 模式失败',
                        type: 'error',
                    });
                }
            })
            .catch(error => {
                console.error('停止 live 模式时出错:', error);
                this.$notify({
                    title: '错误',
                    message: '停止 live 模式时出错',
                    type: 'error',
                });
            });
        }}})