mky-vent-base/src/components/AIChat/index.vue

<template>
  <div class="dialog-overlay">
    <!-- 左侧折叠区域 -->
    <div class="left-side" :class="{ collapsed: isFold }" id="leftSide">
      <div
        class="addBtn"
        :style="{
          backgroundImage: `url(${isFold ? '/src/assets/images/vent/home/add.svg' : ''})`,
          backgroundColor: isFold ? '' : '#2cb6ff',
          width: isFold ? '20px' : 'auto',
        }"
        @click="addNew"
      >
        <span
          class="btn-text-bg"
          :style="{
            backgroundImage: `url(${!isFold ? '/src/assets/images/vent/home/addB.svg' : ''})`,
          }"
        ></span>
        <span v-if="!isFold" class="btn-text">添加新对话</span>
      </div>
      <div class="divider0"></div>
      <div
        v-if="isFold"
        class="historyBtn"
        :style="{ backgroundImage: `url(${isFold ? '/src/assets/images/vent/home/history.svg' : '/src/assets/images/vent/home/history.svg'})` }"
        @click="addNew"
      ></div>
      <div v-else class="historyBtn1">
        <span
          class="btn-text-bg"
          :style="{
            backgroundImage: `url(${!isFold ? '/src/assets/images/vent/home/history.svg' : ''})`,
          }"
        ></span>
        <span v-if="!isFold" class="btn-text">历史对话</span>
        <a-list style="width: 110px" :split="false" :data-source="historySessions" :scroll="200" class="custom-list">
          <template #renderItem="{ item }">
            <a-list-item
              :style="{
                padding: '8px 10px 0 8px',
                color: '#5e7081',
                fontSize: '10px',
                position: 'relative', // 新增定位
              }"
              @click="sessionsHistory(item.id)"
            >
              <!-- 新增flex布局容器 -->
              <div style="display: flex; justify-content: space-between; width: 100%">
                <div v-if="editingId !== item.id" class="text-container">
                  <span class="edit-text">{{ item.title || '新会话' }}</span>
                  <edit-outlined class="edit-icon" @click="startEditing(item)" />
                </div>

                <!-- 输入框 -->
                <a-input
                  size="small"
                  v-else
                  v-model:value="editText"
                  v-focus
                  @blur="handleSave(item)"
                  @keyup.enter="handleSave(item)"
                  class="edit-input"
                />
              </div>
            </a-list-item>
          </template>
        </a-list>
      </div>
      <div
        class="foldBtn"
        :style="{ backgroundImage: `url(${isFold ? '/src/assets/images/vent/home/Fold.svg' : '/src/assets/images/vent/home/unfold.svg'})` }"
        @click="fold"
      ></div>
    </div>
    <!-- 右侧对话框 -->
    <div class="right-side">
      <div class="input-content">
        <!-- 对话区域 -->
        <div class="dialog-area">
          <div v-for="message in sortedMessages" :key="message.id" :class="['message-item', message.type]">
            <!-- 用户提问样式 -->
            <div v-if="message.type === 'user'" class="ask-message">
              <span>{{ message.content }}</span>
            </div>

            <!-- 系统回答样式 -->
            <div v-else class="system-message">
              <div class="answerIcon"></div>
              <div class="answer-message">
                <div v-html="formatMessage(message.content)"></div>
              </div>
            </div>
          </div>
        </div>
        <!-- 文本输入区域 -->
        <div v-if="spinning" class="thinking-area">
          <span style="color: #fff">思考中···</span>
          <a-spin :spinning="spinning"></a-spin>
        </div>
        <div class="input-area">
          <textarea v-model="inputText" placeholder="请输入你的问题"> </textarea>
          <!-- 底部操作栏 -->
          <div class="action-bar">
            <!-- 文件上传按钮 -->
            <label class="upload-btn">
              <div class="send-file" />
              <span class="divider"> | </span>
              <div class="send-img" />
            </label>
            <!-- 发送按钮 -->
            <div class="send-btn" @click="handleSend"></div>
          </div>
        </div>
      </div>
    </div>
  </div>
</template>

<script lang="ts" setup>
  import { ref, onMounted, unref, nextTick, computed } from 'vue';
  import { useUserStore } from '/@/store/modules/user';
  import { EditOutlined } from '@ant-design/icons-vue';
  // 响应式变量声明
  const dialogVisible = ref(false);
  const isFold = ref(true); // 是否折叠
  const inputText = ref(''); // 输入框内容
  const historySessions = ref([]); // 消会话历史
  const spinning = ref(false); // 加载状态
  const systemMessage = ref(''); // 系统返回信息
  const session_id = ref(''); // 会话id
  const hasCreated = ref(false); // 标志位，防止重复调用create接口
  const hasAdd = ref(false); // 标志位，防止重复调用create接口
  const userStore = useUserStore(); //获取用户信息
  const editingId = ref<number | null>(null);
  const editText = ref('');
  interface ListItem {
    id: number;
    title?: string;
  }
  let userId = unref(userStore.getUserInfo).id;
  // const userId = ref(0);
  type MessageItem = {
    id: string; // 唯一标识（可用时间戳生成）
    type: 'user' | 'system';
    content: string;
    timestamp: number; // 排序依据
  };
  const messageList = ref<MessageItem[]>([]);
  const sortedMessages = computed(() => {
    return messageList.value.sort((a, b) => a.timestamp - b.timestamp);
  });
  const vFocus = {
    mounted: (el: HTMLElement) => el.querySelector('input')?.focus(),
  };
  const scrollToBottom = () => {
    const dialogArea = document.querySelector('.dialog-area');
    if (dialogArea) {
      dialogArea.scrollTop = dialogArea.scrollHeight;
    }
  };

  const openMenu = () => {
    dialogVisible.value = !dialogVisible.value;
    if (dialogVisible.value) {
      // addNew();
      hasCreated.value = true;
    }
  };
  const fold = () => {
    isFold.value = !isFold.value;
    if (!isFold.value) {
      sessionsHistoryList();
    }
  };
  //创建新对话
  async function addNew() {
    hasAdd.value = !hasAdd.value;
    const params = {
      user_id: userId,
    };
    let response = await fetch('http://182.92.126.35:6005/sessions/create', {
      method: 'post',
      headers: {
        'Content-Type': 'application/json',
      },
      body: JSON.stringify(params),
    });
    const data = await response.json();
    session_id.value = data.id;
    messageList.value = [];
  }
  //编辑标题
  const startEditing = (item: ListItem) => {
    editingId.value = item.id;
    editText.value = item.title || '';
  };

  // 保存修改
  const handleSave = async (item: ListItem) => {
    const params = {
      chat_session_id: item.id,
      new_title: editText.value,
    };
    try {
      let response = await fetch('http://182.92.126.35:6005/sessions/change_title', {
        method: 'POST',
        headers: {
          'Content-Type': 'application/json',
        },
        body: JSON.stringify(params),
      });
      if (!response.ok) {
        throw new Error('Network response was not ok');
      }
      item.title = editText.value;
    } catch (error) {
      console.error('保存失败:', error);
    }
    editingId.value = null;
  };
  //获取消息列表
  async function handleSend() {
    if (session_id.value === '') {
      await addNew();
      createSessionTitle({ session_id: session_id.value, title: inputText.value });
      sendMessage1();
    } else {
      createSessionTitle({ session_id: session_id.value, title: inputText.value });
      sendMessage1();
    }
  }
  //发送消息
  async function sendMessage() {
    spinning.value = true;
    // 添加用户消息
    messageList.value.push({
      id: `user_${Date.now()}`,
      type: 'user',
      content: inputText.value,
      timestamp: Date.now(),
    });
    const params = {
      chat_session_id: session_id.value,
      prompt: inputText.value,
      ref_file_ids: [],
      thinking_enabled: false,
    };
    inputText.value = ''; // 清空输入框
    //将用户输入的内容发送到后端
    try {
      // 将用户输入的内容发送到后端
      let response = await fetch('http://182.92.126.35:6005/chat', {
        method: 'POST',
        headers: {
          'Content-Type': 'application/json',
        },
        body: JSON.stringify(params),
      });

      if (!response.ok) {
        throw new Error('Network response was not ok');
      }

      const data = await response.json();
      const assistantReply = data.reply.content; // 获取助手回复
      // formatMessage(assistantReply);
      systemMessage.value = assistantReply;

      // 添加系统回答
      messageList.value.push({
        id: `system_${Date.now()}`,
        type: 'system',
        content: systemMessage.value,
        timestamp: Date.now(),
      });
    } catch (error) {
      // 请求失败时设置系统消息为"服务器异常"
      systemMessage.value = '服务器异常';
      console.error('请求失败:', error);
    } finally {
      spinning.value = false; // 无论请求成功与否，都停止加载指示器
    }
  }
  //发送消息  流式响应
  const sendMessage1 = async () => {
    spinning.value = true; // 开始加载
    messageList.value.push({
      id: `user_${Date.now()}`,
      type: 'user',
      content: inputText.value,
      timestamp: Date.now(),
    });

    // 构造请求参数
    const params = {
      chat_session_id: session_id.value, // 替换为实际的会话 ID
      prompt: inputText.value,
      ref_file_ids: [],
      thinking_enabled: false,
    };
    inputText.value = ''; // 清空输入框
    try {
      // 发送 POST 请求
      const response = await fetch('http://182.92.126.35:6005/chat_stream', {
        method: 'POST',
        headers: {
          'Content-Type': 'application/json',
        },
        body: JSON.stringify(params),
      });

      // 检查响应是否成功
      if (!response.ok) {
        throw new Error('Network response was not ok');
      }

      // 获取可读流
      const reader = response.body.getReader();

      // 创建一条新的消息对象
      const newMessage = {
        id: `response_${Date.now()}`,
        type: 'response', // 消息类型
        content: '',
        timestamp: Date.now(), // 时间戳用来排序
      };

      // 将新消息添加到消息列表
      messageList.value.push(newMessage);

      // 读取流式数据
      while (true) {
        const { done, value } = await reader.read();
        if (done) {
          console.log('Stream complete');
          break;
        }

        // 将流数据转换为字符串
        const chunk = new TextDecoder().decode(value);
        console.log('Received chunk:', chunk);
        const jsonRegex = /{.*?}/g;
        const matches = chunk.match(jsonRegex);
        if (matches) {
          matches.forEach((match) => {
            try {
              const data = JSON.parse(match);
              if (data.type === 'text') {
                // 找到当前消息对象并更新 content
                const targetMessage = messageList.value.find((msg) => msg.id === newMessage.id);
                if (targetMessage) {
                  targetMessage.content += data.content; // 追加内容
                  scrollToBottom();
                }
              }
            } catch (error) {
              console.error('Failed to parse JSON:', error);
            }
          });
        }
      }
    } catch (error) {
      // 请求失败时设置系统消息
      systemMessage.value = '服务器异常';
      messageList.value.push({
        id: `system_${Date.now()}`,
        type: 'system',
        content: systemMessage.value,
        timestamp: Date.now(),
      });
      console.error('请求失败:', error);
    } finally {
      spinning.value = false; // 停止加载
    }
  };
  //创建标题
  async function createSessionTitle({ session_id, title }) {
    const params = {
      chat_session_id: session_id,
      prompt: title,
    };
    let response = await fetch('http://182.92.126.35:6005/sessions/title', {
      method: 'post',
      headers: {
        'Content-Type': 'application/json',
      },
      body: JSON.stringify(params),
    });
    const data = await response.json();
  }
  //获取会话历史
  async function sessionsHistoryList() {
    const params = {
      user_id: userId,
    };
    let response = await fetch(`http://182.92.126.35:6005/sessions`, {
      method: 'post',
      headers: {
        'Content-Type': 'application/json',
      },
      body: JSON.stringify(params),
    });
    const data = await response.json();
    historySessions.value = data.chat_sessions;
  }
  //获取具体会话记录
  async function sessionsHistory(id: string) {
    let response = await fetch(`http://182.92.126.35:6005/sessions/history_chat/?chat_session_id=${id}`, {
      method: 'get',
      headers: {
        'Content-Type': 'application/json',
      },
    });
    const data = await response.json();
    if (data.chat_messages.length > 0) {
      messageList.value = [];
      data.chat_messages.forEach((item: any) => {
        // role== user 用户提问
        if (item.role === 'user') {
          messageList.value.push({
            id: `user_${Date.now()}`,
            type: 'user',
            content: item.content,
            timestamp: Date.now(),
          });
        } else {
          // role== assistant 机器回答
          messageList.value.push({
            id: `system_${Date.now()}`,
            type: 'system',
            content: item.content,
            timestamp: Date.now(),
          });
        }
      });
    }
  }
  //格式化消息
  function formatMessage(text: string) {
    let formatted = text
      // 处理换行
      .replace(/\n\n/g, '<br>')
      .replace(/\n###/g, '<br> ')
      .replace(/###/g, '')
      .replace(/---/g, '')
      // 处理粗体
      .replace(/\*\*(.*?)\*\*/g, '<strong>$1</strong>')
      // 处理斜体
      .replace(/\*(.*?)\*/g, '<em>$1</em>')
      // 处理行内代码
      .replace(/`([^`]+)`/g, '<code>$1</code>');
    return formatted;
  }
  // 初始化按钮定位
  onMounted(() => {
    sessionsHistoryList();
  });
</script>

<style lang="less" scoped>
  @keyframes menuShow {
    0% {
      width: 0;
      height: 0;
    }
    100% {
      width: 480px;
      height: 100vh;
    }
  }
  .custom-list {
    height: 360px;
    overflow-y: auto;
  }
  /* 穿透组件作用域 */
  ::v-deep .custom-list {
    scrollbar-width: thin;
    scrollbar-color: #1890ff #f0f0f0;
    &::-webkit-scrollbar {
      width: 4px;
      height: 6px;
    }

    &::-webkit-scrollbar-thumb {
      background: #1890ff;
      border-radius: 4px;
    }

    &::-webkit-scrollbar-track {
      background: #f0f0f0;
      border-radius: 4px;
    }
  }
  ::v-deep .zxm-list-items {
    color: #1890ff;
  }
  ::v-deep .zxm-list-item:hover {
    text-decoration: underline;
    color: #1890ff !important;
  }
  .text-container {
    display: flex;
    align-items: center;
    width: 100%;
    overflow: hidden;
  }

  .text-ellipsis {
    flex: 1;
  }
  .edit-text {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    min-width: 0;
  }
  .edit-icon {
    flex-shrink: 0;
    cursor: pointer;
    margin-left: auto;
  }
  .edit-input {
    font-size: 10px;
  }
  .trigger-button {
    position: fixed;
    bottom: 10px;
    right: 10px;
    z-index: 1000000;
    .icon {
      width: 60px;
      height: 60px;
      position: relative;
      background-image: url('/@/assets/images/vent/home/wakeBtn.png');
      background-position: center;
      background-size: 100% 100%;
    }
  }
  .dialog-overlay {
    width: 32%;
    height: 55%;
    z-index: 999;
    display: flex;
    position: fixed;
    right: 90px;
    bottom: 20px;
    box-shadow: 0 0 3px 3px #1074c1;
    background-color: #09172c;
  }

  /* 遮罩层淡入淡出 */
  .fade-enter-active,
  .fade-leave-active {
    transition: opacity 0.3s;
  }
  .fade-enter-from,
  .fade-leave-to {
    opacity: 0;
  }

  /* 弹窗缩放动画 */
  .scale-enter-active,
  .scale-leave-active {
    transition: all 0.3s ease;
  }
  .scale-enter-from {
    transform: scale(0.5) translate(-50%, -50%);
    opacity: 0;
  }
  .scale-leave-to {
    transform: scale(1.2) translate(-50%, -50%);
    opacity: 0;
  }

  .left-side {
    background: #0c2842;
    transition: width 0.5s ease; /* 平滑过渡动画 */
    width: 120px; /* 展开时宽度 */
    position: relative; /* 用于按钮定位 */
  }
  .left-side.collapsed {
    width: 40px; /* 折叠时宽度 */
  }

  .addBtn {
    height: 30px;
    position: absolute;
    background-size: 100% 100%;
    background-position: center;
    padding: 2px;
    right: 10px;
    top: 10px;
    left: 10px;
    align-items: center;
    border-radius: 3px;
    cursor: pointer;
  }
  .btn-text-bg {
    width: 14px;
    height: 14px;
    position: absolute;
    background-size: 100% 100%;
    right: 10px;
    top: 9px;
    left: 10px;
    bottom: 10px;
  }
  .btn-text {
    margin-left: 3px;
    font-size: 12px;
    color: #fff;
    white-space: nowrap;
    margin-left: 30px;
    line-height: 26px;
  }
  .historyBtn {
    width: 20px;
    height: 20px;
    position: absolute;
    background-size: 100% 100%;
    background-position: center;
    padding: 2px;
    right: 10px;
    top: 100px;
  }
  .historyBtn1 {
    width: 20px;
    height: 20px;
    position: absolute;
    background-size: 100% 100%;
    background-position: center;
    left: 3px;
    top: 80px;
  }
  .divider0 {
    border-bottom: 1px solid #1074c1;
    width: auto;
    margin: 0 10px;
    height: 13%;
    display: block;
    background: transparent;
  }
  .foldBtn {
    width: 20px;
    height: 20px;
    position: absolute;
    background-size: 100% 100%;
    background-position: center;
    padding: 2px;
    right: 10px;
    bottom: 10px;
    cursor: pointer;
  }

  .right-side {
    flex: 1; /* 占据剩余空间 */
    background: #09172c;
  }

  .input-content {
    display: flex;
    flex-direction: column;
    justify-content: flex-end; /* 内容底部对齐 */
    height: 100%;
    padding: 20px; /* 统一内边距 */
  }
  .ask-message {
    align-self: flex-end;
    float: right;
    max-width: 70%;
    padding: 10px;
    margin: 10px;
    border-radius: 5px;
    color: #fff;
    background: #0c2842;
    align-self: flex-end; /* 右侧对齐‌:ml-citation{ref="2" data="citationList"} */
  }
  .answer {
    display: flex;
    flex-direction: row;
  }
  .answerIcon {
    flex-shrink: 0;
    margin-top: 10px;
    width: 35px;
    height: 35px;
    background-image: url('/@/assets/images/vent/home/answerIcon.svg');
    background-size: 100% 100%;
  }
  .answer-message {
    float: left;
    padding: 10px;
    margin: 10px;
    border-radius: 5px;
    color: #fff;
    background: #0c2842;
  }

  /** 系统返回信息**/
  .system-message {
    display: flex;
    flex-direction: row;
    align-self: flex-start;
    width: 100%;
    padding: 12px;
    display: flex;
  }
  .answerIcon {
    margin-top: 10px;
    width: 35px;
    height: 35px;
    background-image: url('/@/assets/images/vent/home/answerIcon.svg');
    background-size: 100% 100%;
  }
  .answer-message {
    float: left;
    width: 100%;
    padding: 10px;
    margin: 10px;
    border-radius: 5px;
    color: #fff;
    background: #0c2842;
  }
  .dialog-area {
    flex: 1; /* 占据剩余空间 */
    gap: 50px; /* 消息块间隔统一控制 */
    overflow-y: auto; /* 垂直滚动条 */
    margin-bottom: 10px;
  }
  .loading-wrapper,
  .content-wrapper {
    min-height: 40px;
  }
  .message-item.user {
    margin-bottom: 50px;
  }
  .input-area {
    background-color: #043256 !important;
    display: flex;
    flex-direction: column;
    gap: 10px;
  }
  textarea {
    background-color: #043256 !important;
    width: 100%;
    height: 40px;
    border: none;
    resize: none;
    outline: none;
    overflow: hidden;
    padding: 10px; /* 统一内边距 */
    color: #fff;
  }

  .action-bar {
    display: flex;
    align-items: center;
    gap: 12px;
  }

  .upload-btn {
    display: flex;
    cursor: pointer;
    padding: 6px 12px;
  }

  .divider {
    color: #ccc;
    font-weight: 300;
    margin: 0 10px;
  }

  .send-file {
    width: 20px;
    height: 20px;
    background-image: url('/@/assets/images/vent/home/sendFile.svg');
    background-size: 100% 100%;
    border-radius: 4px;
    cursor: pointer;
  }
  .send-img {
    width: 20px;
    height: 20px;
    background-image: url('/@/assets/images/vent/home/sendImg.svg');
    background-size: 100% 100%;
    border-radius: 4px;
    cursor: pointer;
  }
  .send-btn {
    width: 20px;
    height: 20px;
    margin-left: auto;
    margin-right: 10px;
    background-color: #1074c1;
    background-image: url('/@/assets/images/vent/home/send.svg');
    background-position: center;
    background-size: 100% 100%;
    border-radius: 2px;
    cursor: pointer;
  }
</style>