461 lines
11 KiB
Vue
461 lines
11 KiB
Vue
<template>
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<div class="chat-view main-panel">
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<div v-if="!conversationId" class="welcome">
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<div class="welcome-icon">
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<svg viewBox="0 0 64 64" width="36" height="36">
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<rect width="64" height="64" rx="14" fill="url(#favBg)"/>
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<defs>
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<linearGradient id="favBg" x1="0%" y1="0%" x2="100%" y2="100%">
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<stop offset="0%" stop-color="#2563eb"/>
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<stop offset="100%" stop-color="#60a5fa"/>
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</linearGradient>
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</defs>
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<text x="32" y="40" text-anchor="middle" font-family="-apple-system,BlinkMacSystemFont,sans-serif" font-size="18" font-weight="800" fill="#fff" letter-spacing="-0.5">Luxx</text>
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</svg>
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</div>
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<h1>Chat</h1>
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<p>选择一个对话开始，或创建新对话</p>
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</div>
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<template v-else>
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<div class="chat-header">
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<div class="chat-title-area">
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<h2 class="chat-title">{{ conversationTitle || '新对话' }}</h2>
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</div>
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</div>
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<div ref="messagesContainer" class="messages-container" @scroll="handleScroll">
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<div v-if="loading" class="load-more-top">
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<span>加载中...</span>
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</div>
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<div class="messages-list">
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<div
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v-for="msg in messages"
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:key="msg.id"
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:data-msg-id="msg.id"
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>
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<MessageBubble
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:role="msg.role"
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:text="msg.text || msg.content"
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:tool-calls="msg.tool_calls"
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:process-steps="msg.process_steps"
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:token-count="msg.token_count"
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:created-at="msg.created_at"
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:deletable="msg.role === 'user'"
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:attachments="msg.attachments"
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@delete="deleteMessage(msg.id)"
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/>
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</div>
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<!-- 流式消息 -->
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<div v-if="streamingMessage" class="message-bubble assistant streaming">
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<div class="avatar">Luxx</div>
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<div class="message-body">
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<ProcessBlock
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:process-steps="streamingMessage.process_steps"
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:streaming="true"
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/>
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</div>
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</div>
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</div>
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</div>
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<div class="message-input">
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<div class="input-container">
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<textarea
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ref="textareaRef"
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v-model="inputMessage"
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:placeholder="sending ? 'AI 正在回复中...' : '输入消息... (Shift+Enter 换行)'"
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rows="1"
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@input="autoResize"
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@keydown="onKeydown"
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></textarea>
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<div class="input-footer">
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<div class="input-actions">
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<button
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class="btn-send"
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:class="{ active: canSend }"
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:disabled="!canSend || sending"
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@click="sendMessage"
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>
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<span v-html="sendIcon"></span>
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</button>
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</div>
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</div>
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</div>
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<div class="input-hint">AI 助手回复内容仅供参考</div>
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</div>
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</template>
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</div>
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</template>
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<script setup>
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import { ref, computed, onMounted, nextTick, watch } from 'vue'
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import { useRoute } from 'vue-router'
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import { conversationsAPI, messagesAPI } from '../services/api.js'
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import ProcessBlock from '../components/ProcessBlock.vue'
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import MessageBubble from '../components/MessageBubble.vue'
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import { renderMarkdown } from '../utils/markdown.js'
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const route = useRoute()
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const messages = ref([])
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const inputMessage = ref('')
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const loading = ref(true)
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const sending = ref(false)
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const streamingMessage = ref(null)
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const messagesContainer = ref(null)
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const textareaRef = ref(null)
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const autoScroll = ref(true)
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const conversationId = ref(route.params.id)
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const conversationTitle = ref('')
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const canSend = computed(() => inputMessage.value.trim().length > 0)
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const sendIcon = `<svg viewBox="0 0 24 24" width="18" height="18" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><line x1="22" y1="2" x2="11" y2="13"></line><polygon points="22 2 15 22 11 13 2 9 22 2"></polygon></svg>`
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function autoResize() {
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const el = textareaRef.value
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if (!el) return
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el.style.height = 'auto'
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el.style.height = Math.min(el.scrollHeight, 200) + 'px'
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}
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function onKeydown(e) {
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if (e.key === 'Enter' && !e.shiftKey) {
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e.preventDefault()
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sendMessage()
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}
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}
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const loadMessages = async () => {
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autoScroll.value = true
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loading.value = true
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try {
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const res = await messagesAPI.list(conversationId.value)
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if (res.success) {
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messages.value = res.data.messages || []
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if (messages.value.length > 0) {
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conversationTitle.value = res.data.title || ''
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}
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}
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} catch (e) {
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console.error(e)
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} finally {
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loading.value = false
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scrollToBottom()
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}
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}
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const deleteMessage = async (msgId) => {
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try {
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await messagesAPI.delete(msgId)
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messages.value = messages.value.filter(m => m.id !== msgId)
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} catch (e) {
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console.error(e)
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}
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}
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const sendMessage = async () => {
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if (!inputMessage.value.trim() || sending.value) return
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const content = inputMessage.value.trim()
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inputMessage.value = ''
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sending.value = true
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// 清空输入框
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nextTick(() => {
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autoResize()
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})
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// 添加用户消息
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messages.value.push({
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id: Date.now(),
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role: 'user',
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content: content,
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text: content,
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attachments: [],
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process_steps: [],
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created_at: new Date().toISOString()
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})
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scrollToBottom()
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// 初始化流式消息
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streamingMessage.value = {
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id: Date.now() + 1,
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role: 'assistant',
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process_steps: [],
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created_at: new Date().toISOString()
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}
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// SSE 流式请求
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messagesAPI.sendStream(
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{ conversation_id: conversationId.value, content },
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{
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onProcessStep: (step) => {
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autoScroll.value = true // 流式开始时启用自动滚动
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if (!streamingMessage.value) return
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// 按 id 更新或追加步骤
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const idx = streamingMessage.value.process_steps.findIndex(s => s.id === step.id)
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if (idx >= 0) {
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streamingMessage.value.process_steps[idx] = step
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} else {
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streamingMessage.value.process_steps.push(step)
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}
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},
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onDone: () => {
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// 完成，添加到消息列表
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autoScroll.value = true
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if (streamingMessage.value) {
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messages.value.push({
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...streamingMessage.value,
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created_at: new Date().toISOString()
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})
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streamingMessage.value = null
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}
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sending.value = false
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},
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onError: (error) => {
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console.error('Stream error:', error)
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if (streamingMessage.value) {
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streamingMessage.value.process_steps.push({
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id: 'error-' + Date.now(),
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index: streamingMessage.value.process_steps.length,
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type: 'text',
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content: `[错误] ${error}`
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})
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}
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sending.value = false
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}
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}
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)
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scrollToBottom()
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}
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const scrollToBottom = () => {
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if (!autoScroll.value) return
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nextTick(() => {
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if (messagesContainer.value) {
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messagesContainer.value.scrollTo({
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top: messagesContainer.value.scrollHeight,
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behavior: streamingMessage.value ? 'instant' : 'smooth'
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})
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}
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})
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}
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// 处理滚动事件，检测用户是否手动滚动
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const handleScroll = () => {
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if (!messagesContainer.value) return
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const { scrollTop, scrollHeight, clientHeight } = messagesContainer.value
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const distanceToBottom = scrollHeight - scrollTop - clientHeight
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// 距离底部超过50px时停止自动跟随
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autoScroll.value = distanceToBottom < 50
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}
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// 监听流式消息变化，自动滚动
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watch(() => streamingMessage.value?.process_steps?.length, () => {
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if (streamingMessage.value) {
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scrollToBottom()
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}
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})
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const formatTime = (time) => {
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if (!time) return ''
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return new Date(time).toLocaleTimeString('zh-CN', { hour: '2-digit', minute: '2-digit' })
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}
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onMounted(loadMessages)
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</script>
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<style scoped>
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.chat-view {
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flex: 1 1 0;
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display: flex;
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flex-direction: column;
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height: 100vh;
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overflow: hidden;
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min-width: 0;
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}
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.welcome {
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flex: 1;
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display: flex;
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flex-direction: column;
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align-items: center;
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justify-content: center;
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color: var(--text-tertiary);
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}
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.welcome-icon {
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width: 64px;
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height: 64px;
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border-radius: 16px;
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display: flex;
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align-items: center;
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justify-content: center;
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margin-bottom: 20px;
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overflow: hidden;
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}
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.welcome h1 {
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font-size: 24px;
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color: var(--text-primary);
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margin: 0 0 8px;
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}
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.welcome p {
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font-size: 14px;
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}
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.chat-header {
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display: flex;
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align-items: center;
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justify-content: space-between;
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padding: 12px 24px;
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border-bottom: 1px solid var(--border-light);
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background: color-mix(in srgb, var(--bg-primary) 70%, transparent);
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backdrop-filter: blur(40px);
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-webkit-backdrop-filter: blur(40px);
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transition: background 0.2s, border-color 0.2s;
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}
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.chat-title-area {
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display: flex;
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align-items: center;
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gap: 8px;
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min-width: 0;
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}
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.chat-title {
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font-size: 16px;
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font-weight: 600;
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color: var(--text-primary);
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margin: 0;
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white-space: nowrap;
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overflow: hidden;
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text-overflow: ellipsis;
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}
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.messages-container {
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flex: 1 1 auto;
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overflow-y: auto;
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padding: 16px 0;
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width: 100%;
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display: flex;
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flex-direction: column;
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scrollbar-width: none;
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-ms-overflow-style: none;
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}
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.messages-container::-webkit-scrollbar {
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display: none;
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}
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.load-more-top {
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text-align: center;
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padding: 12px 0;
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color: var(--text-tertiary);
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font-size: 13px;
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}
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.messages-list {
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width: 80%;
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margin: 0 auto;
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padding: 0 16px;
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}
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/* Message Input */
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.message-input {
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padding: 16px 24px 12px;
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background: var(--bg-primary);
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border-top: 1px solid var(--border-light);
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transition: background 0.2s, border-color 0.2s;
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}
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.input-container {
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display: flex;
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flex-direction: column;
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background: var(--bg-input);
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border: 1px solid var(--border-input);
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border-radius: 12px;
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padding: 12px;
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transition: border-color 0.2s, background 0.2s;
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}
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.input-container:focus-within {
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border-color: var(--accent-primary);
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}
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textarea {
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width: 100%;
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background: none;
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border: none;
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color: var(--text-primary);
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font-size: 15px;
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line-height: 1.6;
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resize: none;
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outline: none;
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font-family: inherit;
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min-height: 36px;
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max-height: 200px;
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padding: 0;
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}
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textarea::placeholder {
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color: var(--text-tertiary);
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}
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.input-footer {
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display: flex;
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justify-content: flex-end;
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padding-top: 8px;
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margin-top: 4px;
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}
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.input-actions {
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display: flex;
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align-items: center;
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gap: 8px;
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}
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.btn-send {
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width: 36px;
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height: 36px;
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border-radius: 8px;
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border: none;
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background: var(--bg-code);
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color: var(--text-tertiary);
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cursor: not-allowed;
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display: flex;
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align-items: center;
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justify-content: center;
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transition: all 0.15s ease;
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}
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.btn-send.active {
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background: var(--accent-primary);
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color: white;
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cursor: pointer;
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}
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.btn-send.active:hover {
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background: var(--accent-primary-hover);
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transform: translateY(-1px);
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box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
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}
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.btn-send.active:active {
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transform: translateY(0);
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box-shadow: none;
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}
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.input-hint {
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text-align: center;
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font-size: 12px;
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color: var(--text-tertiary);
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margin-top: 8px;
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}
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</style>
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