555 lines
16 KiB
Vue
555 lines
16 KiB
Vue
<script lang="ts" setup>
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import ChatItem from '~/components/aigc/chat/ChatItem.vue'
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import Message from '~/components/aigc/chat/Message.vue'
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import {
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type Assistant,
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type ChatMessage,
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type ChatMessageId,
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type ChatSession,
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type ChatSessionId,
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llmModels,
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type ModelTag,
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} from '~/typings/llm'
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import { useHistory } from '~/composables/useHistory'
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import { uuidv4 } from '@uniiem/uuid'
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import { useLLM } from '~/composables/useLLM'
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import { trimObject } from '@uniiem/object-trim'
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import ModalAuthentication from '~/components/ModalAuthentication.vue'
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import NewSessionScreen from '~/components/aigc/chat/NewSessionScreen.vue'
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useSeoMeta({
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title: '聊天',
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})
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const dayjs = useDayjs()
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const toast = useToast()
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const modal = useModal()
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const loginState = useLoginState()
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const historyStore = useHistory()
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const { chatSessions } = storeToRefs(historyStore)
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const { setChatSessions } = historyStore
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const currentSessionId = ref<ChatSessionId | null>(null)
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const messagesWrapperRef = ref<HTMLDivElement | null>(null)
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const showSidebar = ref(false)
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const user_input = ref('')
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const responding = ref(false)
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const currentModel = ref<ModelTag>('spark3_5')
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const currentAssistant = computed<Assistant | null>(
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() => getSessionCopyById(currentSessionId.value || '')?.assistant || null
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)
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const modals = reactive({
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modelSelect: false,
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assistantSelect: false,
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newSessionScreen: false,
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})
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/**
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* 获取指定 ID 的会话数据
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* @param chatSessionId
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*/
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const getSessionCopyById = (
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chatSessionId: ChatSessionId
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): ChatSession | undefined =>
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chatSessions.value.find((s) => s.id === chatSessionId)
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/**
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* 切换当前会话
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* @param chatSessionId 指定会话 ID，不传则切换到列表中第一个会话
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*/
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const selectCurrentSessionId = (chatSessionId?: ChatSessionId) => {
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if (chatSessions.value.length > 0) {
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if (chatSessionId) {
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// 切换到指定 ID
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// 保存当前输入并清空输入框
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setChatSessions(
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chatSessions.value.map((s) =>
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s.id === currentSessionId.value
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? {
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...s,
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last_input: user_input.value,
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}
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: s
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)
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)
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user_input.value = ''
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// 切换到指定 ID 会话
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currentSessionId.value = chatSessionId
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// 恢复输入
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user_input.value = getSessionCopyById(chatSessionId)?.last_input || ''
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// 清除已恢复的输入
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setChatSessions(
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chatSessions.value.map((s) =>
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s.id === chatSessionId
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? {
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...s,
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last_input: '',
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}
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: s
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)
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)
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} else {
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// 切换到第一个会话
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currentSessionId.value = chatSessions.value[0].id
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}
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} else {
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handleClickCreateSession()
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}
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nextTick(() => {
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showSidebar.value = false
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modals.newSessionScreen = false
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scrollToMessageListBottom()
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})
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}
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/**
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* 创建新会话处理函数
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* @param assistant 指定助手，不传或空值则不指定助手
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*/
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const createSession = (assistant: Assistant | null) => {
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// 生成一个新的会话 ID
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const sessionId = uuidv4()
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// 新会话数据
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const newChat = !!assistant
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? {
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id: sessionId,
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subject: '新对话',
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messages: [],
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create_at: dayjs().unix(),
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assistant,
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}
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: {
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id: sessionId,
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subject: '新对话',
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messages: [],
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create_at: dayjs().unix(),
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}
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// 插入新会话数据
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setChatSessions([newChat, ...chatSessions.value])
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// 切换到新的会话
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selectCurrentSessionId(sessionId)
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// 关闭新建会话屏幕
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modals.newSessionScreen = false
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nextTick(() => {
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if (!!currentAssistant.value) {
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insetMessage({
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id: uuidv4(),
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role: 'system',
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content: currentAssistant.value?.role || '',
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preset: true,
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})
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insetMessage({
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id: uuidv4(),
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role: 'user',
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content: `${currentAssistant.value?.target}，${currentAssistant.value?.demand}`,
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preset: true,
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})
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insetMessage({
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id: uuidv4(),
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role: 'assistant',
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content: currentAssistant.value?.input_tpl || '',
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preset: true,
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})
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} else {
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insetMessage({
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id: uuidv4(),
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role: 'assistant',
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content: '你好，有什么可以帮助你的吗？',
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preset: true,
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})
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}
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})
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}
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/**
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* 处理点击新建会话按钮事件
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*/
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const handleClickCreateSession = () => {
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showSidebar.value = false
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modals.newSessionScreen = true
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}
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/**
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* 处理发送消息操作
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* @param event
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*/
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const handleClickSend = (event: any) => {
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if (!loginState.is_logged_in) {
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modal.open(ModalAuthentication)
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return
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}
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if (event.ctrlKey) {
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return
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}
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if (responding.value) return
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if (!user_input.value) return
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if (!currentSessionId.value) {
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toast.add({
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title: '发送失败',
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description: '请先选择一个会话',
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color: 'red',
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icon: 'i-tabler-circle-x',
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})
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return
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}
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// 插入用户消息
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insetMessage({
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id: uuidv4(),
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role: 'user',
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content: user_input.value,
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create_at: dayjs().unix(),
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})
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user_input.value = ''
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// 进入响应中状态
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responding.value = true
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// 插入空助手消息(加载状态)
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const assistantReplyId = insetMessage({
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id: uuidv4(),
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role: 'assistant',
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content: '',
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})
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// 请求模型回复
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const trimmedMessages = trimObject(getMessages(), 2000, {
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keys: ['content'],
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})
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useLLM(trimmedMessages, {
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modelTag: currentModel.value,
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})
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.then((reply) => {
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modifyMessageContent(assistantReplyId, reply)
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})
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.catch((err) => {
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modifyMessageContent(assistantReplyId, err, true)
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})
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.finally(() => {
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responding.value = false
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})
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}
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const scrollToMessageListBottom = () => {
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nextTick(() => {
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messagesWrapperRef.value?.scrollTo({
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top: messagesWrapperRef.value.scrollHeight,
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behavior: 'smooth',
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})
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})
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}
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const insetMessage = (message: ChatMessage): ChatMessageId => {
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setChatSessions(
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chatSessions.value.map((s) =>
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s.id === currentSessionId.value
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? {
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...s,
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messages: [...s.messages, message],
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}
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: s
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)
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)
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scrollToMessageListBottom()
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return message.id
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}
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const getMessages = () =>
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getSessionCopyById(currentSessionId.value!)?.messages || []
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const modifyMessageContent = (
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messageId: ChatMessageId,
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content: string,
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interrupted: boolean = false,
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updateTime: boolean = true
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) => {
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setChatSessions(
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chatSessions.value.map((s) =>
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s.id === currentSessionId.value
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? {
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...s,
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messages: s.messages.map((m) =>
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m.id === messageId
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? {
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...m,
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content,
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interrupted,
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create_at: updateTime ? dayjs().unix() : m.create_at,
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}
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: m
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),
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}
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: s
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)
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)
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scrollToMessageListBottom()
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}
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onMounted(() => {
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// 切换到第一个会话, 没有会话会自动创建
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selectCurrentSessionId()
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})
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</script>
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<template>
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<div class="w-full flex relative">
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<div
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class="absolute -translate-x-full md:sticky md:translate-x-0 z-10 flex flex-col h-[calc(100vh-4rem)] bg-neutral-100 dark:bg-neutral-900 p-4 w-full md:w-[300px] shadow-sidebar border-r border-transparent dark:border-neutral-700 transition-all duration-300 ease-out"
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:class="{ 'translate-x-0': showSidebar }"
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>
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<div class="flex-1 flex flex-col overflow-auto overflow-x-hidden">
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<!-- list -->
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<div class="flex flex-col gap-3 relative">
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<!-- ClientOnly avoids hydrate exception -->
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<ClientOnly>
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<TransitionGroup name="chat-item">
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<div v-if="chatSessions.length === 0">
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<div
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class="text-center text-neutral-400 dark:text-neutral-500 py-4 flex flex-col items-center gap-2"
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>
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<Icon
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name="i-tabler-messages"
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class="text-2xl"
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/>
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<span>没有会话</span>
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</div>
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</div>
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<ChatItem
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v-for="session in chatSessions"
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:chat-session="session"
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:key="session.id"
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:active="session.id === currentSessionId"
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@click="selectCurrentSessionId(session.id)"
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@remove="
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() => {
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chatSessions.splice(
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chatSessions.findIndex((s) => s.id === session.id),
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1
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)
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session.id === currentSessionId && selectCurrentSessionId()
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}
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"
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/>
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</TransitionGroup>
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</ClientOnly>
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</div>
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</div>
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<div class="pt-4 flex justify-between items-center">
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<div></div>
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<div>
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<UButton
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color="white"
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variant="solid"
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icon="i-tabler-message-circle-plus"
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@click="handleClickCreateSession"
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>
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新建聊天
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</UButton>
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</div>
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</div>
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</div>
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<div class="h-[calc(100vh-4rem)] flex-1 bg-white dark:bg-neutral-900">
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<Transition
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name="message"
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mode="out-in"
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>
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<div
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v-if="!loginState.is_logged_in"
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class="w-full h-full"
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>
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<div
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class="w-full h-full flex flex-col justify-center items-center gap-2 bg-neutral-100 dark:bg-neutral-900"
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>
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<Icon
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name="i-tabler-user-circle"
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class="text-7xl text-neutral-300 dark:text-neutral-700"
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/>
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<p class="text-sm text-neutral-500 dark:text-neutral-400">
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请登录后使用
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</p>
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<UButton
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class="mt-2 font-bold"
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color="black"
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variant="solid"
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size="xs"
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@click="modal.open(ModalAuthentication)"
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>
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登录
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</UButton>
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</div>
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</div>
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<NewSessionScreen
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v-else-if="
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modals.newSessionScreen ||
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getSessionCopyById(currentSessionId!) === undefined
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"
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:non-back="!getSessionCopyById(currentSessionId!)"
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@select="createSession"
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@cancel="modals.newSessionScreen = false"
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/>
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<div
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v-else
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class="w-full h-full flex flex-col"
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>
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<div
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class="w-full p-4 bg-neutral-50 dark:bg-neutral-800/50 border-b dark:border-neutral-700/50 flex items-center gap-2"
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>
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<UButton
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class="md:hidden"
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color="black"
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variant="ghost"
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icon="i-tabler-menu-2"
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@click="showSidebar = !showSidebar"
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></UButton>
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<h1 class="font-medium">
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{{ getSessionCopyById(currentSessionId!)?.subject || '新对话' }}
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</h1>
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</div>
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<div
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ref="messagesWrapperRef"
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class="flex-1 flex flex-col overflow-auto overflow-x-hidden"
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>
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<div class="flex flex-col gap-8 px-4 py-8">
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<TransitionGroup name="message">
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<Message
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v-for="message in getMessages() || []"
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:message="message"
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:key="message.id"
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/>
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</TransitionGroup>
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</div>
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</div>
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<ClientOnly>
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<div
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class="w-full p-4 pt-2 flex flex-col gap-2 bg-neutral-50 dark:bg-neutral-800/50 border-t dark:border-neutral-700/50"
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>
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<div
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class="flex items-center gap-2 overflow-auto overflow-y-hidden"
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>
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<button
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class="chat-option-btn"
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@click="modals.modelSelect = true"
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>
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<Icon name="tabler:box" />
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<span class="text-xs">
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{{
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llmModels
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.find((m) => m.tag === currentModel)
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?.name.toUpperCase() || '模型'
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}}
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</span>
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</button>
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<button
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v-if="currentAssistant?.tpl_name"
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class="chat-option-btn"
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>
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<Icon name="tabler:robot-face" />
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<span class="text-xs">
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{{ currentAssistant.tpl_name }}
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</span>
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</button>
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</div>
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<div class="relative">
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<UTextarea
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v-model="user_input"
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size="lg"
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autoresize
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:rows="5"
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:maxrows="12"
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class="font-sans"
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placeholder="Enter 发送, Ctrl + Enter 换行"
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@keydown.ctrl.enter="user_input += '\n'"
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@keydown.enter.prevent="handleClickSend"
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/>
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<UButton
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color="black"
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variant="solid"
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icon="i-tabler-send-2"
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class="absolute bottom-2.5 right-3"
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@click.stop="handleClickSend"
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>
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发送
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</UButton>
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</div>
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</div>
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</ClientOnly>
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</div>
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</Transition>
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</div>
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<!-- Modals -->
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<UModal v-model="modals.modelSelect">
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<UCard>
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<template #header>
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<h3
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class="text-base font-semibold leading-6 text-gray-900 dark:text-white"
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>
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选择大语言模型
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</h3>
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</template>
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<div class="grid grid-cols-3 gap-4">
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<div
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v-for="(llm, index) in llmModels"
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:key="index"
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@click="currentModel = llm.tag"
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class="flex flex-col gap-2 justify-center items-center w-full aspect-[1/1] border-2 rounded-xl cursor-pointer transition duration-150 select-none"
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:class="
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llm.tag === currentModel
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? 'border-primary shadow-xl bg-primary text-white'
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: 'dark:border-neutral-800 bg-white dark:bg-black shadow-card'
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"
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>
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<Icon
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v-if="llm?.icon"
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:name="llm.icon"
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class="text-4xl opacity-80"
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/>
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<div class="flex flex-col gap-0.5 items-center">
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<h1 class="font-bold drop-shadow opacity-90">
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{{ llm.name || 'unknown' }}
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</h1>
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<p class="text-xs opacity-60">{{ llm.description }}</p>
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</div>
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</div>
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</div>
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<template #footer>
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<div
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class="flex justify-end items-center"
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@click="modals.modelSelect = false"
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>
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<UButton>确定</UButton>
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</div>
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</template>
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</UCard>
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</UModal>
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</div>
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</template>
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<!--suppress CssUnusedSymbol -->
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<style scoped>
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.message-enter-active {
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@apply transition duration-300;
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}
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.message-enter-from {
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@apply translate-y-4 opacity-0;
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}
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.chat-item-move,
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.chat-item-enter-active,
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.chat-item-leave-active {
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@apply transition-all duration-300;
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}
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.chat-item-enter-from,
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.chat-item-leave-to {
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@apply opacity-0 scale-90;
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}
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.chat-item-leave-active {
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@apply absolute inset-x-0;
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}
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.chat-option-btn {
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@apply text-lg px-2 py-1.5 flex gap-1 justify-center items-center rounded-lg;
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@apply bg-white border border-neutral-300 shadow-sm hover:shadow-card;
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@apply dark:bg-neutral-800 dark:border-neutral-600;
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}
|
||
</style>
|