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- <template>
- <view class="container">
- <!-- 聊天记录区域 -->
- <scroll-view class="chat-container" scroll-y :scroll-top="scrollTop" :scroll-with-animation="true"
- @scroll="onScroll" :style="{ height: `calc(100vh - ${inputHeight}px)`,marginTop: '0'}">
- <view class="chat-list">
- <view v-for="(message, index) in chatMessages" :key="index" class="message-item" :class="{ 'message-ai': message.sender === 'ai', 'message-user': message.sender === 'user' }">
- <!-- AI消息 -->
- <template v-if="message.sender === 'ai'">
- <view class="avatar-container">
- <image class="avatar" src="/static/icons/ai-1.png" mode="aspectFill"></image>
- </view>
- <view class="message-content">
- <view class="message-bubble ai-bubble"
- :class="{'typing': message.isTyping, 'welcome': message.isWelcome || index === 0}">
- <!-- 正在输入指示器 -->
- <view v-if="message.isTyping" class="typing-indicator">
- <view class="typing-dot"></view>
- <view class="typing-dot"></view>
- <view class="typing-dot"></view>
- </view>
-
- <!-- 消息内容 -->
- <text v-else-if="message.content" class="message-text"
- :class="{'highlight': containsKeywords(message.content)}">
- {{ message.content }}
- </text>
-
- <!-- AI免责声明(非欢迎消息且非输入中显示) -->
- <text class="ai-disclaimer">
- 内容均由AI生成,仅供参考
- </text>
- </view>
-
- <!-- 操作按钮区域(仅最后一条AI消息显示) -->
- <view v-if="index === chatMessages.length - 1 && message.sender === 'ai' && !message.isTyping" class="message-actions">
- <view class="action-button" @click="regenerateMessage" hover-class="action-button-hover">
- <text class="action-icon">🔄</text>
- <text class="action-text">重新生成</text>
- </view>
- </view>
-
- <text class="message-time">{{ message.time }}</text>
- </view>
- </template>
- <!-- 用户消息 -->
- <template v-else>
- <view class="message-content user-content">
- <text class="message-time">{{ message.time }}</text>
- <view class="message-bubble user-bubble">
- <text class="message-text">{{ message.content }}</text>
- </view>
- </view>
- <view class="avatar-container">
- <image class="avatar" src="/static/images/user-avatar.svg" mode="aspectFill"></image>
- </view>
- </template>
- </view>
- </view>
- </scroll-view>
- <!-- 底部输入区 -->
- <view class="input-container" :style="{
- // #ifdef H5
- paddingBottom: `${safeAreaBottom + 100}rpx`
- // #endif
- // #ifdef APP-HARMONY
- paddingBottom: `${safeAreaBottom + 20}rpx`
- // #endif
- }">
- <!-- 问题建议区 -->
- <scroll-view v-if="chatMessages.length <= 3 && !inputMessage && !isProcessing" class="suggested-questions" scroll-x>
- <view v-for="(question, index) in suggestedQuestions" :key="index" class="question-chip"
- @click="useQuestion(question)">
- <text>{{ question }}</text>
- </view>
- </scroll-view>
- <view class="input-wrapper">
- <textarea class="message-input" v-model="inputMessage" placeholder="请输入您的问题..." :disabled="isProcessing"
- auto-height :maxlength="300" :style="{ maxHeight: '120rpx' }" @focus="onInputFocus"
- @confirm="submitQuestion" />
-
- <!-- 中止按钮(流式输出时显示) -->
- <view v-if="isProcessing" class="stop-button" @click="stopStreaming" hover-class="button-hover">
- <text class="stop-icon">⏹</text>
- </view>
-
- <!-- 发送按钮 -->
- <view v-else class="send-button" :class="{ 'disabled': !inputMessage.trim() }"
- @click="submitQuestion" hover-class="button-hover">
- <image class="send-icon-image"
- :src="inputMessage.trim() ? '/static/icons/chat.png' : '/static/icons/chat_off.png'"
- mode="aspectFit"></image>
- </view>
- </view>
- </view>
-
- <!-- renderjs 模块容器(用于 H5/App 端 SSE 流式连接) -->
- <!-- #ifdef H5 -->
- <view
- :change:prop="renderModule.onDataChange"
- :prop="renderjsData"
- :onStreamData="onStreamData"
- class="renderjs-container"
- ></view>
- <!-- #endif -->
- </view>
- </template>
- <script setup>
- import { ref, reactive, computed, onMounted, onBeforeUnmount, nextTick, getCurrentInstance } from 'vue'
- import api from "@/config/api.js";
- import storage from "@/utils/storage.js";
- import { chatStreamSuggested } from "@/api/services/chart.js";
-
- // 响应式数据
- const inputMessage = ref('') // 输入框消息
-
- // 初始化函数,用于获取初始时间
- const getInitialFormattedTime = () => {
- const date = new Date()
- const hours = date.getHours().toString().padStart(2, '0')
- const minutes = date.getMinutes().toString().padStart(2, '0')
- return `${hours}:${minutes}`
- }
-
- const chatMessages = ref([{
- sender: 'ai',
- content: '您好!我是农小禹,您的智能农业助手🌱 我可以帮您解答农业种植、病虫害防治、农产品管理等方面的问题。有什么可以帮助您的吗?',
- time: getInitialFormattedTime(),
- timestamp: Date.now(),
- isWelcome: true
- }])
-
- const scrollTop = ref(0)
- const inputHeight = ref(110)
- const isProcessing = ref(false)
- const currentTypingMessage = ref(null) // 当前正在输入的消息索引
- const lastUserQuestion = ref('') // 保存最后一个用户问题,用于重新生成
- const suggestedQuestions = ref([
- '水稻插秧后如何管理?',
- '果树夏季修剪技巧?',
- '如何防治蔬菜常见病虫害?',
- '农药使用注意事项?',
- '有机肥和化肥怎么搭配使用?'
- ])
- const statusBarHeight = ref(20)
- const safeAreaBottom = ref(0)
- const isIOS = ref(false)
-
- // renderjs 通信数据
- const renderjsData = ref({
- action: '', // start, stop
- url: '',
- data: {},
- timestamp: 0
- })
-
- // 消息队列和打字机效果
- const messageQueue = ref([])
- const isTypingEffect = ref(false)
- const typingTimer = ref(null)
-
- // Thinking 模式追踪
- const isInThinkingMode = ref(false)
- const sessionId = ref(null)
- const messageId = ref(null) // 消息ID,用于标识当前消息
- const thinkingBuffer = ref('') // 临时存储 Thinking 内容
-
- // 防抖函数引用
- let debouncedSubmitQuestion = null
-
- // uni-app 生命周期
- const onNavigationBarButtonTap = (e) => {
- console.log("导航栏按钮点击:", e);
- }
-
- // ========== renderjs 通信方法 ==========
-
- // renderjs 回调:接收流式数据
- const onStreamData = (data) => {
- console.log('=== Vue收到流式数据 ===');
- console.log('数据类型:', data.type);
-
- if (data.type === 'thinking') {
- console.log('进入 Thinking 模式');
- // 第一个 thinking 类型,开启 Thinking 模式
- isInThinkingMode.value = true;
- thinkingBuffer.value = data.content;
- processThinkingContent();
- } else if (data.type === 'message') {
- const contentLength = data.content ? data.content.length : 0;
- console.log('收到消息内容,长度:', contentLength);
-
- // 判断是否在 Thinking 模式中
- if (isInThinkingMode.value) {
- console.log('仍在 Thinking 模式,累积内容');
- // 仍在 Thinking 区域内,累积内容
- thinkingBuffer.value += data.content;
- processThinkingContent();
- } else {
- console.log('普通消息,添加到队列');
- // 普通消息内容
- handleMessageData(data.content);
- }
- } else if (data.type === 'end') {
- // 流式结束
- console.log("流式结束,消息id:", data.id);
- finishStreaming(data.id);
- } else if (data.type === 'error') {
- // 错误处理
- console.error('流式错误:', data.error);
- handleStreamError(data.error);
- }
- }
-
- // 处理 Thinking 内容(跳过 Thinking,只处理后续内容)
- const processThinkingContent = () => {
- if (currentTypingMessage.value === null) return;
-
- // 检查是否包含 </details> 结束标签
- if (thinkingBuffer.value.includes('</details>')) {
- // Thinking 区域结束,提取 </details> 之后的内容
- isInThinkingMode.value = false;
-
- // 提取 </details> 后面的内容
- const detailsEndIndex = thinkingBuffer.value.indexOf('</details>');
- const contentAfterThinking = thinkingBuffer.value.substring(detailsEndIndex + '</details>'.length);
-
- // 如果有内容,添加到消息队列
- if (contentAfterThinking) {
- handleMessageData(contentAfterThinking);
- }
-
- // 清空缓冲区
- thinkingBuffer.value = '';
- }
- // 如果还在 Thinking 区域内,不做任何显示,继续累积
- }
-
- // 处理消息数据(添加到队列)
- const handleMessageData = (text) => {
- console.log('handleMessageData 被调用,文本长度:', text ? text.length : 0);
- if (!text) return;
-
- // 将文本按字符添加到队列
- for (let char of text) {
- messageQueue.value.push(char);
- }
- console.log('消息队列长度:', messageQueue.value.length);
-
- // 如果打字机效果未启动,则启动
- if (!isTypingEffect.value) {
- console.log('启动打字机效果');
- startTypingEffect();
- }
- }
-
- // 启动打字机效果
- const startTypingEffect = () => {
- console.log('startTypingEffect 被调用');
- console.log('isTypingEffect:', isTypingEffect.value);
- console.log('currentTypingMessage:', currentTypingMessage.value);
- console.log('messageQueue 长度:', messageQueue.value.length);
-
- if (isTypingEffect.value) {
- console.log('打字机效果已在运行,退出');
- return;
- }
-
- if (currentTypingMessage.value === null) {
- console.log('没有当前消息,退出');
- return;
- }
-
- if (messageQueue.value.length === 0) {
- console.log('消息队列为空,退出');
- return;
- }
-
- isTypingEffect.value = true;
-
- // 关闭 typing 指示器
- if (chatMessages.value[currentTypingMessage.value]) {
- chatMessages.value[currentTypingMessage.value].isTyping = false;
- console.log('已关闭 typing 指示器');
- }
-
- console.log('开始打字机效果,消息索引:', currentTypingMessage.value);
-
- const processQueue = () => {
- if (messageQueue.value.length > 0 && currentTypingMessage.value !== null) {
- // 每次取出一个字符
- const char = messageQueue.value.shift();
- const currentMsg = chatMessages.value[currentTypingMessage.value];
-
- if (currentMsg) {
- const currentContent = currentMsg.content || '';
- currentMsg.content = currentContent + char;
-
- // 每20个字符滚动一次,优化性能
- if (currentContent.length % 20 === 0) {
- scrollToBottom();
- }
- }
-
- // 继续处理队列
- typingTimer.value = setTimeout(processQueue, 10);
- } else if (messageQueue.value.length === 0 && isProcessing.value) {
- // 队列为空但还在处理中,等待新数据
- typingTimer.value = setTimeout(processQueue, 50);
- } else {
- // 队列为空且不在处理中,停止打字机效果
- console.log('队列处理完成,停止打字机效果');
- isTypingEffect.value = false;
- }
- };
-
- processQueue();
- }
-
- // 停止打字机效果
- const stopTypingEffect = () => {
- isTypingEffect.value = false;
- if (typingTimer.value) {
- clearTimeout(typingTimer.value);
- typingTimer.value = null;
- }
-
- // 清空队列,将剩余内容一次性显示
- if (messageQueue.value.length > 0 && currentTypingMessage.value !== null) {
- const remainingText = messageQueue.value.join('');
- const currentContent = chatMessages.value[currentTypingMessage.value].content || '';
- chatMessages.value[currentTypingMessage.value].content = currentContent + remainingText;
- messageQueue.value = [];
- }
- }
-
- // 完成流式输出
- const finishStreaming = (id) => {
- console.log("消息id2:",id);
- stopTypingEffect();
-
- if (currentTypingMessage.value !== null) {
- chatMessages.value[currentTypingMessage.value].isTyping = false;
- currentTypingMessage.value = null;
- }
-
- // 重置 Thinking 模式状态
- isInThinkingMode.value = false;
- thinkingBuffer.value = '';
-
- isProcessing.value = false;
- scrollToBottom();
-
- // 获取下一轮建议问题
- // fetchSuggestedQuestions({user: sessionId.value, messageId: id});
- }
-
- // 处理流式错误
- const handleStreamError = (error) => {
- console.error('流式错误:', error);
- stopTypingEffect();
-
- // 移除正在输入的消息
- if (currentTypingMessage.value !== null) {
- chatMessages.value.splice(currentTypingMessage.value, 1);
- currentTypingMessage.value = null;
- }
-
- // 重置 Thinking 模式状态
- isInThinkingMode.value = false;
- thinkingBuffer.value = '';
-
- isProcessing.value = false;
- handleError({ message: error || '网络异常,请稍后重试' });
- }
- // ========== 用户交互方法 ==========
-
- // 发送消息
- const submitQuestion = () => {
- if (!storage.getHasLogin()) {
- uni.showModal({
- title: '提示',
- content: '您还未登录,请先登录',
- confirmText: '去登录',
- cancelText: '取消',
- success: function(res) {
- if (res.confirm) {
- uni.navigateTo({
- url: '/pages/login/index'
- });
- }
- },
- });
- return;
- }
-
- if (!inputMessage.value.trim() || isProcessing.value) return;
- const question = inputMessage.value.trim();
- lastUserQuestion.value = question; // 保存问题用于重新生成
- inputMessage.value = '';
-
- // 添加用户消息
- chatMessages.value.push({
- sender: 'user',
- content: question,
- time: getCurrentTime(),
- timestamp: Date.now()
- });
- // 添加 AI 正在输入的消息
- const typingMessageIndex = chatMessages.value.push({
- sender: 'ai',
- content: '',
- time: getCurrentTime(),
- timestamp: Date.now(),
- isTyping: true
- }) - 1;
- currentTypingMessage.value = typingMessageIndex;
- isProcessing.value = true;
- scrollToBottom();
-
- // 通过 renderjs 发起 SSE 请求
- startSSERequest(question);
- }
-
- // 启动 SSE 请求(通过 renderjs)
- const startSSERequest = (question) => {
- const url = api.serve + '/uniapp/dify/chat/stream';
- sessionId.value = Date.now().toString()
- const requestData = {
- query: question,
- user: 'user_' + sessionId.value
- };
-
- // #ifdef H5
- // 更新 renderjs 数据,触发 SSE 连接
- renderjsData.value = {
- action: 'start',
- url: url,
- data: requestData,
- token: storage.getAccessToken(),
- timestamp: Date.now()
- };
- // #endif
-
- // #ifdef APP-HARMONY || APP-PLUS
- // 鸿蒙等不支持 renderjs 的平台,使用原生方式
- startSSERequestNative(url, requestData);
- // #endif
- }
-
- // 鸿蒙端 SSE 请求任务引用
- let sseRequestTask = null;
-
- // 原生方式处理 SSE 请求(用于鸿蒙等平台)
- const startSSERequestNative = (url, data) => {
- console.log('[鸿蒙端] 开始 SSE 请求:', url);
-
- // 创建请求任务
- sseRequestTask = uni.request({
- url: url,
- method: 'POST',
- header: {
- 'Content-Type': 'application/json',
- 'Accept': 'text/event-stream',
- 'Authorization': `Bearer ${storage.getAccessToken()}`
- },
- data: data,
- enableChunked: true, // 启用分块传输
- responseType: 'text', // 接收文本数据
- success: (res) => {
- console.log('[鸿蒙端] 请求成功,状态码:', res.statusCode);
- console.log('[鸿蒙端] 响应数据类型:', typeof res.data);
-
- if (res.statusCode === 200 && res.data) {
- console.log('[鸿蒙端] 响应数据长度:', res.data.length);
- // 处理 SSE 格式的响应数据
- parseSSEResponse(res.data);
- } else {
- console.error('[鸿蒙端] 请求失败或无数据');
- handleStreamError('请求失败,状态码: ' + res.statusCode);
- }
- },
- fail: (err) => {
- console.error('[鸿蒙端] 请求失败:', err);
- handleStreamError(err.errMsg || '网络异常');
- }
- });
-
- // 监听数据接收(如果支持分块传输)
- if (sseRequestTask && typeof sseRequestTask.onChunkReceived === 'function') {
- console.log('[鸿蒙端] 支持分块接收,启用监听');
- sseRequestTask.onChunkReceived((chunkRes) => {
- console.log('[鸿蒙端] 收到数据块');
- if (chunkRes && chunkRes.data) {
- parseSSEResponseChunk(chunkRes.data);
- }
- });
- } else {
- console.log('[鸿蒙端] 不支持分块接收,将在 success 回调中处理完整响应');
- }
- }
-
- // 解析 SSE 格式的响应数据(处理分块数据)
- let sseBuffer = ''; // 用于累积不完整的行
-
- const parseSSEResponseChunk = (chunkText) => {
- if (!chunkText || typeof chunkText !== 'string') {
- console.log('[鸿蒙端] 无效的数据块');
- return;
- }
-
- console.log('[鸿蒙端] 处理数据块,长度:', chunkText.length);
-
- // 累积到缓冲区
- sseBuffer += chunkText;
-
- // 按行分割
- const lines = sseBuffer.split('\n');
-
- // 保留最后一行(可能不完整)
- sseBuffer = lines.pop() || '';
-
- // 处理完整的行
- processSSELines(lines);
- }
-
- // 解析 SSE 格式的响应数据(处理完整响应)
- const parseSSEResponse = (responseText) => {
- if (!responseText || typeof responseText !== 'string') {
- console.log('[鸿蒙端] 无效的响应数据');
- finishStreaming();
- return;
- }
-
- console.log('[鸿蒙端] 开始解析完整 SSE 数据,长度:', responseText.length);
-
- // 按行分割
- const lines = responseText.split('\n');
-
- // 处理所有行
- processSSELines(lines);
-
- // 清空缓冲区
- sseBuffer = '';
- }
-
- // 处理 SSE 行数据
- const processSSELines = (lines) => {
- let messageId = null;
-
- for (let i = 0; i < lines.length; i++) {
- const line = lines[i].trim();
-
- if (!line) continue; // 跳过空行
-
- console.log(`[鸿蒙端] 处理第 ${i} 行:`, line.substring(0, 100));
-
- // 解析 event: 行
- if (line.startsWith('event:')) {
- // event: message
- continue;
- }
-
- // 解析 data: 行
- if (line.startsWith('data:') || line !== '') {
- let data = line;
- if (line.startsWith('data:')) {
- data = data.substring(5).trim();
- }
-
- if (!data || data.includes("ping")) continue;
-
- console.log('[鸿蒙端] 解析后的数据,长度:', data.length);
-
- // 过滤掉 MESSAGE_END 等元数据事件(JSON 格式)
- if (data.startsWith('{') && data.includes('"eventType"')) {
- try {
- const jsonData = JSON.parse(data);
- console.log('[鸿蒙端] JSON 事件:', jsonData.eventType || jsonData.event);
-
- // 如果是 MESSAGE_END 事件,通知结束
- if (jsonData.eventType === 'MESSAGE_END' || jsonData.event === 'message_end') {
- console.log('[鸿蒙端] 收到 MESSAGE_END 事件,流式结束');
- messageId = jsonData.id;
- // 不要在这里 continue,继续处理后续行
- continue;
- }
-
- // 其他元数据事件也忽略
- if (jsonData.eventType || jsonData.event) {
- console.log('[鸿蒙端] 跳过元数据事件');
- continue;
- }
- } catch (e) {
- console.log('[鸿蒙端] JSON 解析失败,作为普通文本处理');
- // 不是 JSON,继续处理
- }
- }
-
- // 检查是否是 Thinking 内容
- if (data.includes('<details') && data.includes('<summary>')) {
- console.log('[鸿蒙端] 发送 thinking 类型数据');
- onStreamData({ type: 'thinking', content: data });
- } else if (data) {
- // 普通消息内容 - 逐行发送,不累积
- console.log('[鸿蒙端] 发送 message 类型数据,长度:', data.length);
- onStreamData({ type: 'message', content: data });
- }
- }
- }
-
- // 如果找到了 messageId,结束流式输出
- if (messageId) {
- console.log('[鸿蒙端] 数据处理完成,结束流式输出');
- setTimeout(() => {
- onStreamData({ type: 'end', id: messageId });
- }, 300);
- } else {
- // 如果没有 messageId,延迟结束(兼容处理)
- console.log('[鸿蒙端] 无 messageId,延迟结束');
- setTimeout(() => {
- if (isProcessing.value) {
- onStreamData({ type: 'end', id: null });
- }
- }, 1000);
- }
- }
-
- // 停止鸿蒙端的 SSE 请求
- const stopSSERequestNative = () => {
- if (sseRequestTask) {
- console.log('[鸿蒙端] 中止请求');
- sseRequestTask.abort();
- sseRequestTask = null;
- }
- }
-
- // 停止流式输出
- const stopStreaming = () => {
- console.log('用户中止流式输出');
-
- // #ifdef H5
- // 通知 renderjs 停止
- renderjsData.value = {
- action: 'stop',
- timestamp: Date.now()
- };
- // #endif
-
- // #ifdef APP-HARMONY
- // 停止鸿蒙端的请求
- stopSSERequestNative();
- // #endif
-
- // 立即停止打字机效果并完成
- finishStreaming();
-
- uni.showToast({
- title: '已中止',
- icon: 'none',
- duration: 1500
- });
- }
-
- // 重新生成回复
- const regenerateMessage = () => {
- if (!lastUserQuestion.value || isProcessing.value) return;
-
- // 删除最后一条 AI 消息
- if (chatMessages.value.length > 0 && chatMessages.value[chatMessages.value.length - 1].sender === 'ai') {
- chatMessages.value.pop();
- }
-
- // 添加新的正在输入消息
- const typingMessageIndex = chatMessages.value.push({
- sender: 'ai',
- content: '',
- time: getCurrentTime(),
- timestamp: Date.now(),
- isTyping: true
- }) - 1;
- currentTypingMessage.value = typingMessageIndex;
- isProcessing.value = true;
- messageQueue.value = [];
-
- // 重置 Thinking 模式状态
- isInThinkingMode.value = false;
- thinkingBuffer.value = '';
-
- scrollToBottom();
-
- // 重新发起请求
- startSSERequest(lastUserQuestion.value);
- }
- // ========== 工具方法 ==========
-
- // 错误处理
- const handleError = (error) => {
- let errorMessage = '发生错误';
- if (error.errMsg) {
- errorMessage = error.errMsg;
- } else if (error.message) {
- errorMessage = error.message;
- }
- uni.showToast({
- title: errorMessage,
- icon: 'none',
- duration: 2000
- });
- }
- // 防抖函数
- const debounce = (func, wait) => {
- let timeout;
- return (...args) => {
- clearTimeout(timeout);
- timeout = setTimeout(() => {
- func.apply(null, args);
- }, wait);
- };
- }
-
- // 输入框获取焦点
- const onInputFocus = () => {
- nextTick(() => {
- scrollToBottom();
- });
- }
-
- // 滚动到底部
- const scrollToBottom = () => {
- nextTick(() => {
- const query = uni.createSelectorQuery();
- query.select('.chat-list').boundingClientRect(data => {
- if (data) {
- scrollTop.value = data.height + 1000;
- }
- }).exec();
- });
- }
-
- const onScroll = (e) => {
- // 可以添加滚动事件处理
- }
-
- const getCurrentTime = () => {
- return getFormattedTime(new Date());
- }
-
- const getFormattedTime = (date) => {
- const hours = date.getHours().toString().padStart(2, '0');
- const minutes = date.getMinutes().toString().padStart(2, '0');
- return `${hours}:${minutes}`;
- }
-
- const useQuestion = (question) => {
- inputMessage.value = question;
- }
-
- const containsKeywords = (text) => {
- const keywords = ['水稻', '小麦', '玉米', '病虫害', '农药', '化肥', '有机肥', '种植技术'];
- return keywords.some(keyword => text.includes(keyword));
- }
-
- const formatMessage = (text) => {
- // 将文本中的换行符转换为<br>标签
- return text.replace(/\n/g, '<br>');
- }
-
- const initMessages = () => {
- // 确保消息有时间戳
- chatMessages.value.forEach(msg => {
- if (!msg.timestamp) {
- msg.timestamp = new Date().getTime();
- }
- });
- // 按时间排序
- chatMessages.value.sort((a, b) => a.timestamp - b.timestamp);
- }
-
- const showDateSeparator = (index) => {
- // 判断是否需要显示日期分割线
- if (index === 0) return true;
- const currentMsg = chatMessages.value[index];
- const prevMsg = chatMessages.value[index - 1];
- // 如果两条消息相隔超过30分钟,或者是不同日期,显示日期分割线
- return isDifferentDay(currentMsg.timestamp, prevMsg.timestamp) ||
- (currentMsg.timestamp - prevMsg.timestamp > 30 * 60 * 1000);
- }
-
- const isDifferentDay = (timestamp1, timestamp2) => {
- const date1 = new Date(timestamp1);
- const date2 = new Date(timestamp2);
- return date1.getDate() !== date2.getDate() ||
- date1.getMonth() !== date2.getMonth() ||
- date1.getFullYear() !== date2.getFullYear();
- }
-
- const formatDateSeparator = (timestamp) => {
- const now = new Date();
- const msgDate = new Date(timestamp);
- // 今天
- if (isSameDay(msgDate, now)) {
- return '今天 ' + getFormattedTime(msgDate);
- }
- // 昨天
- const yesterday = new Date(now);
- yesterday.setDate(now.getDate() - 1);
- if (isSameDay(msgDate, yesterday)) {
- return '昨天 ' + getFormattedTime(msgDate);
- }
- // 一周内
- const oneWeekAgo = new Date(now);
- oneWeekAgo.setDate(now.getDate() - 7);
- if (msgDate >= oneWeekAgo) {
- const weekdays = ['星期日', '星期一', '星期二', '星期三', '星期四', '星期五', '星期六'];
- return weekdays[msgDate.getDay()] + ' ' + getFormattedTime(msgDate);
- }
- // 其他日期
- return msgDate.getFullYear() + '年' + (msgDate.getMonth() + 1) + '月' + msgDate.getDate() + '日 ' + getFormattedTime(msgDate);
- }
-
- const isSameDay = (date1, date2) => {
- return date1.getDate() === date2.getDate() &&
- date1.getMonth() === date2.getMonth() &&
- date1.getFullYear() === date2.getFullYear();
- }
-
- // 获取下一轮建议问题列表
- const fetchSuggestedQuestions = async (data) => {
- console.log("获取下一轮建议问题参数",data);
- try {
- const response = await chatStreamSuggested(data);
-
- if (response && response.data) {
- // 假设接口返回的数据格式为 { data: ["问题1", "问题2", ...] }
- if (Array.isArray(response.data) && response.data.length > 0) {
- suggestedQuestions.value = response.data;
- } else if (response.data.questions && Array.isArray(response.data.questions)) {
- // 或者接口返回 { data: { questions: [...] } }
- suggestedQuestions.value = response.data.questions;
- }
- }
- } catch (error) {
- console.error('获取建议问题失败:', error);
- // 失败时保持默认建议问题,不影响用户体验
- }
- }
-
- // 生命周期钩子
- onMounted(() => {
- // 初始化防抖函数
- debouncedSubmitQuestion = debounce(submitQuestion, 300)
-
- // 获取系统信息
- const systemInfo = uni.getSystemInfoSync();
- statusBarHeight.value = systemInfo.statusBarHeight || 20;
- isIOS.value = systemInfo.platform === 'ios';
-
- // 计算底部安全区域(包含 tabbar 高度)
- const safeAreaInsetsBottom = systemInfo.safeAreaInsets ? (systemInfo.safeAreaInsets.bottom || 0) : 0;
- // 转换为 rpx,并确保至少有基础间距
- safeAreaBottom.value = Math.max(safeAreaInsetsBottom * 2, 0);
- // 初始化消息
- initMessages();
- // 滚动到底部
- nextTick(() => {
- scrollToBottom();
- });
-
- // 监听来自 renderjs 的自定义事件(仅在支持的平台)
- // #ifdef H5 || APP-PLUS
- if (typeof window !== 'undefined') {
- window.addEventListener('renderjs-stream-data', (event) => {
- console.log('通过事件接收到数据:', event.detail);
- onStreamData(event.detail);
- });
- }
- // #endif
- })
-
- // 组件销毁时清理资源
- onBeforeUnmount(() => {
- // 停止打字机效果
- stopTypingEffect();
-
- // 通知 renderjs 停止连接
- if (isProcessing.value) {
- renderjsData.value = {
- action: 'stop',
- timestamp: Date.now()
- };
- }
-
- // 清理消息队列
- messageQueue.value = [];
-
- // 移除事件监听器(仅在支持的平台)
- // #ifdef H5 || APP-PLUS
- if (typeof window !== 'undefined') {
- window.removeEventListener('renderjs-stream-data', onStreamData);
- }
- // #endif
- })
- </script>
- <!-- #ifdef H5 || APP-PLUS -->
- <script module="renderModule" lang="renderjs">
- // renderjs 模块状态
- let eventSource = null;
- let reader = null;
- let isReading = false;
- let eventType = '';
- let dataBuffer = [];
- let messageIdS = null;
-
- // 启动 SSE 连接
- async function startSSE(config, ownerInstance) {
- // 先停止之前的连接
- stopSSE();
-
- const { url, data, token } = config;
-
- try {
- // 使用 fetch API 建立 SSE 连接
- const response = await fetch(url, {
- method: 'POST',
- headers: {
- 'Content-Type': 'application/json',
- 'Accept': 'text/event-stream',
- 'Authorization': `Bearer ${token}`
- },
- body: JSON.stringify(data)
- });
-
- if (!response.ok) {
- throw new Error(`HTTP error! status: ${response.status}`);
- }
-
- // 获取 reader
- reader = response.body.getReader();
- const decoder = new TextDecoder('utf-8');
- isReading = true;
-
- let buffer = '';
- eventType = ''; // 当前事件名
- dataBuffer = []; // 当前事件的所有 data 行
-
- // 读取流式数据
- while (isReading) {
- const { done, value } = await reader.read();
-
- if (done) {
- console.log('SSE 流结束');
- if (typeof window !== 'undefined') {
- window.dispatchEvent(new CustomEvent('renderjs-stream-data', {
- detail: { type: 'end', id: messageIdS }
- }));
- }
- break;
- }
-
- // 解码数据
- buffer += decoder.decode(value, { stream: true });
-
- // 按行处理
- const lines = buffer.split('\n');
- buffer = lines.pop() || ''; // 保留最后不完整的行
-
- for (const line of lines) {
- processLine(line, ownerInstance);
- }
- }
-
- } catch (error) {
- console.error('SSE 连接错误:', error);
- if (typeof window !== 'undefined') {
- window.dispatchEvent(new CustomEvent('renderjs-stream-data', {
- detail: {
- type: 'error',
- error: error.message || '连接失败'
- }
- }));
- }
- } finally {
- stopSSE();
- }
- }
-
- // 处理单行数据
- function processLine(line, ownerInstance) {
- if (!line.trim()) return;
-
- console.log('[renderjs] 处理行数据:', line);
-
- // 解析 SSE 格式
- if (line.startsWith('event:')) {
- // event: message
- return;
- }
-
- if (line.startsWith('data:') || line !== '') {
- let data = line;
- if (line.startsWith('data:')) {
- data = data.substring(5).trim();
- }
-
- if (!data || data.includes("ping")) return;
-
- console.log('[renderjs] 解析后的数据:', data);
-
- // 过滤掉 MESSAGE_END 等元数据事件(JSON 格式)
- if (data.startsWith('{') && data.includes('"eventType"')) {
- try {
- const jsonData = JSON.parse(data);
- console.log('[renderjs] JSON 事件:', jsonData);
- // 如果是 MESSAGE_END 事件,通知结束
- if (jsonData.eventType === 'MESSAGE_END' || jsonData.event === 'message_end') {
- console.log('[renderjs] 收到 MESSAGE_END 事件,流式结束');
- messageIdS = jsonData.id;
- if (typeof window !== 'undefined') {
- window.dispatchEvent(new CustomEvent('renderjs-stream-data', {
- detail: { type: 'end', id: messageIdS }
- }));
- }
- return;
- }
- // 其他元数据事件也忽略
- return;
- } catch (e) {
- console.log('[renderjs] JSON 解析失败,作为普通文本处理');
- // 不是 JSON,继续处理
- }
- }
-
- // 检查是否是 Thinking 内容
- if (data.includes('<details') && data.includes('<summary>')) {
- console.log('[renderjs] 发送 thinking 类型数据');
- // 使用自定义事件发送数据
- if (typeof window !== 'undefined') {
- window.dispatchEvent(new CustomEvent('renderjs-stream-data', {
- detail: {
- type: 'thinking',
- content: data
- }
- }));
- }
- } else {
- console.log('[renderjs] 发送 message 类型数据,长度:', data.length);
- // 普通消息内容
- if (typeof window !== 'undefined') {
- window.dispatchEvent(new CustomEvent('renderjs-stream-data', {
- detail: {
- type: 'message',
- content: data
- }
- }));
- }
- }
- }
- }
-
- // 停止 SSE 连接
- function stopSSE() {
- isReading = false;
-
- if (reader) {
- try {
- reader.cancel();
- } catch (e) {
- console.error('关闭 reader 失败:', e);
- }
- reader = null;
- }
-
- if (eventSource) {
- eventSource.close();
- eventSource = null;
- }
- }
-
- // 导出方法供 Vue 调用
- export default {
- methods: {
- // 监听 prop 变化
- onDataChange(newValue, oldValue, ownerInstance) {
- if (!newValue || !newValue.action) return;
-
- if (newValue.action === 'start') {
- startSSE(newValue, ownerInstance);
- } else if (newValue.action === 'stop') {
- stopSSE();
- }
- }
- }
- };
- </script>
- <!-- #endif -->
- <style>
- /* 容器样式 */
- .container {
- position: relative;
- min-height: 100vh;
- background-color: #f5f5f5;
- overflow: hidden;
- /* 防止内容溢出 */
- }
- /* 聊天容器 */
- .chat-container {
- padding: 20rpx 30rpx;
- box-sizing: border-box;
- background-color: #f8f8f8;
- background-image: url('/static/images/chat-bg-pattern.png');
- background-size: 300rpx;
- background-blend-mode: overlay;
- background-opacity: 0.05;
- -webkit-overflow-scrolling: touch;
- /* 增强iOS滚动体验 */
- }
- .chat-list {
- padding-bottom: 30rpx;
- }
- /* 消息项 */
- .message-item {
- display: flex;
- margin-bottom: 30rpx;
- position: relative;
- }
- .message-ai {
- justify-content: flex-start;
- }
- .message-user {
- justify-content: flex-end;
- }
- /* 头像 */
- .avatar-container {
- width: 90rpx;
- height: 90rpx;
- flex-shrink: 0;
- }
- .avatar {
- width: 90rpx;
- height: 90rpx;
- border-radius: 50%;
- background-color: #e0e0e0;
- box-shadow: 0 2rpx 8rpx rgba(0, 0, 0, 0.1);
- object-fit: cover;
- }
- /* 消息内容 */
- .message-content {
- max-width: 70%;
- margin: 0 20rpx;
- display: flex;
- flex-direction: column;
- }
- .user-content {
- align-items: flex-end;
- }
- .message-bubble {
- padding: 24rpx;
- border-radius: 24rpx;
- position: relative;
- margin-bottom: 10rpx;
- word-wrap: break-word;
- min-width: 80rpx;
- box-shadow: 0 2rpx 8rpx rgba(0, 0, 0, 0.08);
- transition: all 0.3s ease;
- max-width: 100%;
- }
- .ai-bubble {
- background-color: #e8f5e9;
- border-top-left-radius: 4rpx;
- }
- .user-bubble {
- background-color: #e3f2fd;
- border-top-right-radius: 4rpx;
- }
- .message-text {
- font-size: 28rpx;
- color: #333;
- line-height: 1.5;
- word-break: break-all;
- }
- .message-time {
- font-size: 22rpx;
- color: #999;
- }
-
- /* 消息操作按钮 */
- .message-actions {
- display: flex;
- gap: 16rpx;
- margin-top: 12rpx;
- }
-
- .action-button {
- display: flex;
- align-items: center;
- padding: 8rpx 16rpx;
- background-color: #f5f5f5;
- border-radius: 20rpx;
- border: 1rpx solid #e0e0e0;
- transition: all 0.2s;
- }
-
- .action-button-hover {
- background-color: #e8f5e9;
- border-color: #a5d6a7;
- }
-
- .action-icon {
- font-size: 24rpx;
- margin-right: 6rpx;
- }
-
- .action-text {
- font-size: 24rpx;
- color: #666;
- }
- /* 输入区域 */
- .input-container {
- position: fixed;
- bottom: 0;
- left: 0;
- right: 0;
- background-color: #fff;
- padding: 20rpx 30rpx;
- box-shadow: 0 -2rpx 10rpx rgba(0, 0, 0, 0.1);
- display: flex;
- flex-direction: column;
- /* z-index: 999; */
- /* 确保在 tabbar 之上 */
- }
- .input-wrapper {
- display: flex;
- align-items: flex-end;
- }
- .message-input {
- flex: 1;
- min-height: 70rpx;
- max-height: 120rpx;
- border-radius: 35rpx;
- background-color: #f5f5f5;
- padding: 15rpx 30rpx;
- font-size: 28rpx;
- color: #333;
- border: 1rpx solid #e0e0e0;
- line-height: 1.4;
- }
- .send-button {
- margin-left: 16rpx;
- width: 76rpx;
- height: 76rpx;
- border-radius: 50%;
- background-color: transparent;
- background-image: none;
- display: flex;
- align-items: center;
- justify-content: center;
- transition: all 0.2s ease;
- position: relative;
- align-self: center;
- }
- .send-button.disabled {
- background-color: transparent;
- background-image: none;
- opacity: 1;
- }
-
- /* 中止按钮 */
- .stop-button {
- margin-left: 16rpx;
- width: 76rpx;
- height: 76rpx;
- border-radius: 50%;
- background-color: #ff5252;
- display: flex;
- align-items: center;
- justify-content: center;
- transition: all 0.2s ease;
- align-self: center;
- }
-
- .stop-icon {
- font-size: 36rpx;
- color: white;
- }
- .button-hover {
- transform: scale(0.95);
- }
- @keyframes pulse {
- 0% {
- transform: scale(1);
- }
- 50% {
- transform: scale(0.95);
- }
- 100% {
- transform: scale(1);
- }
- }
- .send-button:active:not(.disabled) {
- animation: pulse 0.3s ease-in-out;
- }
- /* 删除或注释掉之前的样式 */
- .send-icon {
- display: none;
- }
- .send-icon:before {
- display: none;
- }
- .send-icon-text {
- display: none;
- }
- /* 推荐问题区域 */
- .suggested-questions {
- display: flex;
- white-space: nowrap;
- margin-bottom: 15rpx;
- padding: 5rpx 0;
- }
- .question-chip {
- display: inline-block;
- padding: 12rpx 20rpx;
- margin-right: 15rpx;
- background-color: #e8f5e9;
- color: #4CAF50;
- font-size: 24rpx;
- border-radius: 30rpx;
- border: 1rpx solid #a5d6a7;
- }
- /* AI正在输入的样式 */
- .message-bubble.ai-bubble.typing {
- background-color: #f0f0f0;
- }
- .typing-indicator {
- display: flex;
- align-items: center;
- justify-content: center;
- height: 40rpx;
- padding: 0 20rpx;
- }
- .typing-dot {
- width: 10rpx;
- height: 10rpx;
- margin: 0 5rpx;
- background-color: #4CAF50;
- border-radius: 50%;
- opacity: 0.5;
- animation: typingAnimation 1.4s infinite both;
- }
- .typing-dot:nth-child(2) {
- animation-delay: 0.2s;
- }
- .typing-dot:nth-child(3) {
- animation-delay: 0.4s;
- }
- @keyframes typingAnimation {
- 0% {
- opacity: 0.3;
- transform: translateY(0);
- }
- 50% {
- opacity: 1;
- transform: translateY(-5rpx);
- }
- 100% {
- opacity: 0.3;
- transform: translateY(0);
- }
- }
- /* 关键词高亮 */
- .message-text.highlight {
- color: #2E7D32;
- font-weight: 500;
- }
-
- /* AI免责声明 */
- .ai-disclaimer {
- display: block;
- font-size: 20rpx;
- color: #999;
- margin-top: 12rpx;
- padding-top: 8rpx;
- border-top: 1rpx solid rgba(0, 0, 0, 0.05);
- line-height: 1.4;
- }
- /* 欢迎消息特殊样式 */
- .welcome {
- background-color: #e3f2fd !important;
- border-left: none !important;
- border-radius: 24rpx !important;
- }
- /* 日期分割线样式 */
- .date-separator {
- display: flex;
- align-items: center;
- justify-content: center;
- margin: 20rpx 0;
- }
- .date-separator text {
- background-color: rgba(0, 0, 0, 0.1);
- color: #666;
- font-size: 24rpx;
- padding: 4rpx 20rpx;
- border-radius: 20rpx;
- }
- /* 纸飞机图标 */
- .plane-svg {
- display: none;
- }
- .send-icon-image {
- width: 76rpx;
- height: 76rpx;
- }
- .material-icon {
- font-family: 'Material Icons';
- font-weight: normal;
- font-style: normal;
- font-size: 48rpx;
- line-height: 1;
- letter-spacing: normal;
- text-transform: none;
- display: inline-block;
- white-space: nowrap;
- word-wrap: normal;
- direction: ltr;
- -webkit-font-smoothing: antialiased;
- color: white;
- }
- /* 删除不需要的导航栏样式 */
- .custom-navbar {
- display: none;
- }
- .navbar-bg,
- .navbar-content,
- .navbar-left,
- .navbar-title,
- .navbar-right,
- .back-icon,
- .arrow-left {
- display: none;
- }
-
- /* renderjs 容器(隐藏) */
- .renderjs-container {
- display: none;
- width: 0;
- height: 0;
- opacity: 0;
- position: absolute;
- pointer-events: none;
- }
- </style>
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