Files
MemoryBear/web/src/views/Conversation/index.tsx

322 lines
12 KiB
TypeScript

/*
* @Author: ZhaoYing
* @Date: 2026-02-03 16:58:03
* @Last Modified by: ZhaoYing
* @Last Modified time: 2026-02-03 16:58:35
*/
/**
* Conversation Page
* Public conversation interface for shared applications
* Supports conversation history, streaming responses, and memory/web search features
*/
import { type FC, useState, useEffect, useRef } from 'react'
import { useParams, useLocation } from 'react-router-dom'
import { useTranslation } from 'react-i18next'
import InfiniteScroll from 'react-infinite-scroll-component';
import { Flex, Skeleton, Form } from 'antd'
import clsx from 'clsx'
import dayjs from 'dayjs'
import { getConversationHistory, sendConversation, getConversationDetail, getShareToken } from '@/api/application'
import type { HistoryItem, QueryParams } from './types'
import Empty from '@/components/Empty'
import { formatDateTime } from '@/utils/format';
import { randomString } from '@/utils/common'
import BgImg from '@/assets/images/conversation/bg.png'
import ChatEmpty from '@/assets/images/empty/chatEmpty.png'
import Chat from '@/components/Chat'
import type { ChatItem } from '@/components/Chat/types'
import ButtonCheckbox from '@/components/ButtonCheckbox'
import MemoryFunctionIcon from '@/assets/images/conversation/memoryFunction.svg'
import OnlineIcon from '@/assets/images/conversation/online.svg'
import OnlineCheckedIcon from '@/assets/images/conversation/onlineChecked.svg'
import MemoryFunctionCheckedIcon from '@/assets/images/conversation/memoryFunctionChecked.svg'
import { type SSEMessage } from '@/utils/stream'
/**
* Conversation component for shared applications
*/
const Conversation: FC = () => {
const { t } = useTranslation()
const { token } = useParams()
const location = useLocation()
const searchParams = new URLSearchParams(location.search)
const userId = searchParams.get('user_id')
const [loading, setLoading] = useState(false)
const [streamLoading, setStreamLoading] = useState(false)
const [message, setMessage] = useState<string>('')
const [conversation_id, setConversationId] = useState<string | null>(null)
const [historyList, setHistoryList] = useState<HistoryItem[]>([])
const [groupHistoryList, setGroupHistoryList] = useState<Record<string, HistoryItem[]>>({})
const [chatList, setChatList] = useState<ChatItem[]>([])
const [pageLoading, setPageLoading] = useState(false);
const [page, setPage] = useState(1);
const [hasMore, setHasMore] = useState(true);
const scrollRef = useRef<HTMLDivElement>(null);
const [shareToken, setShareToken] = useState<string | null>(localStorage.getItem(`shareToken_${token}`))
const [form] = Form.useForm<QueryParams>()
const queryValues = Form.useWatch<QueryParams>([], form)
useEffect(() => {
const shareToken = localStorage.getItem(`shareToken_${token}`)
setShareToken(shareToken)
if (shareToken && shareToken !== '') return
getShareToken(token as string, userId || randomString(12, false))
.then(res => {
const response = res as { access_token: string } || {}
localStorage.setItem(`shareToken_${token}`, response.access_token ?? '')
setShareToken(response.access_token ?? '')
})
}, [token])
useEffect(() => {
if (token && page === 1 && hasMore && historyList.length === 0 && shareToken) {
getHistory()
}
}, [token, shareToken, page, hasMore, historyList])
/** Group conversation history by date */
const groupHistoryByDate = (items: HistoryItem[]): Record<string, HistoryItem[]> => {
return items.reduce((groups: Record<string, HistoryItem[]>, item) => {
const date = formatDateTime(item.created_at, 'YYYY-MM-DD')
if (!groups[date]) {
groups[date] = [];
}
groups[date].push(item);
return groups;
}, {});
}
/** Fetch conversation history with pagination */
const getHistory = (flag: boolean = false) => {
if (!token || (pageLoading || !hasMore) && !flag) {
return
}
setPageLoading(true);
getConversationHistory(token, { page: flag ? 1 : page, pagesize: 20 })
.then(res => {
const response = res as { items: HistoryItem[], page: { hasnext: boolean; page: number; pagesize: number; total: number } }
const results = response?.items || []
let list = []
if (flag) {
setHistoryList(results);
list = [...results]
} else {
setHistoryList(historyList.concat(results));
list = [...historyList, ...results]
}
setHistoryList(list)
setGroupHistoryList(groupHistoryByDate(list))
if (page === 1 && !flag) {
setConversationId(list[0]?.id || '')
}
setPage(response.page.page + 1);
setHasMore(response.page.hasnext);
setLoading(false);
})
.finally(() => {
setPageLoading(false);
})
}
/** Switch to different conversation or start new one */
const handleChangeHistory = (id: string | null) => {
if (id !== conversation_id) {
setConversationId(id)
}
if (!id) {
setMessage('')
}
}
useEffect(() => {
if (conversation_id) {
getConversationDetail(token as string, conversation_id)
.then(res => {
const response = res as { messages: ChatItem[] }
setChatList(response?.messages || [])
})
} else {
setChatList([])
}
}, [conversation_id])
/** Add user message to chat */
const addUserMessage = (message: string = '') => {
const newUserMessage: ChatItem = {
conversation_id,
role: 'user',
content: message,
created_at: Date.now()
};
setChatList(prev => [...prev, newUserMessage])
}
/** Add empty assistant message placeholder */
const addAssistantMessage = () => {
const newAssistantMessage: ChatItem = {
created_at: Date.now(),
role: 'assistant',
content: '',
}
setChatList(prev => [...prev, newAssistantMessage])
}
/** Update assistant message with streaming content */
const updateAssistantMessage = (content: string = '') => {
if (!content) return
if (streamLoading) {
setStreamLoading(false)
}
setChatList(prev => {
const lastList = [...prev]
const lastIndex = lastList.length - 1
const lastMsg = lastList[lastIndex]
if (lastMsg?.role === 'assistant') {
return [
...lastList.slice(0, lastList.length - 1),
{
...lastMsg,
content: lastMsg.content + content
}
]
}
return prev
})
}
/** Send message and handle streaming response */
const handleSend = () => {
if (!token || !shareToken) {
return
}
setLoading(true)
setStreamLoading(true)
addUserMessage(message)
addAssistantMessage()
let currentConversationId: string | null = null
const handleStreamMessage = (data: SSEMessage[]) => {
data.forEach((item) => {
switch(item.event) {
case 'start':
case 'node_start':
const { conversation_id: newId } = item.data as { conversation_id: string }
currentConversationId = newId
break
case 'message':
const { content, chunk, conversation_id: curId } = item.data as { content: string; chunk: string; conversation_id: string; }
updateAssistantMessage(content ?? chunk)
if (curId) {
currentConversationId = curId;
}
break
case 'end':
case 'workflow_end':
setLoading(false)
if (currentConversationId && currentConversationId !== conversation_id) {
setConversationId(currentConversationId)
}
getHistory(true)
break
}
})
};
sendConversation({
...queryValues,
message: message || '',
stream: true,
conversation_id: conversation_id || null,
}, handleStreamMessage, shareToken)
.finally(() => {
setLoading(false)
})
}
return (
<Flex className="rb:w-full rb:p-[-16px]!">
<div className="rb:w-86.25 rb:h-screen rb:overflow-hidden rb:border-r rb:border-[#EAECEE] rb:p-3">
<div className="rb:group rb:flex rb:items-center rb:justify-center rb:font-regular rb:cursor-pointer rb:mb-5 rb:border rb:border-[#DFE4ED] rb:hover:border-[#155EEF] rb:hover:text-[#155EEF] rb:rounded-lg rb:py-2.5"
onClick={() => handleChangeHistory(null)}
>
<div
className="rb:w-5 rb:h-5 rb:cursor-pointer rb:mr-2 rb:bg-cover rb:bg-[url('@/assets/images/conversation/conversation.svg')] rb:group-hover:bg-[url('@/assets/images/conversation/conversation_hover.svg')]"
></div>
{t('memoryConversation.startANewConversation')}
</div>
{historyList.length > 0 &&
<div
ref={scrollRef}
id="scrollableDiv"
className="rb:overflow-y-auto rb:h-[calc(100vh-255px)]"
>
<InfiniteScroll
dataLength={historyList.length}
next={getHistory}
hasMore={hasMore}
loader={<Skeleton active />}
// endMessage={<Divider plain>It is all, nothing more 🤐</Divider>}
scrollableTarget="scrollableDiv"
>
{Object.entries(groupHistoryList).map(([date, items]) => (
<div key={date} className="rb:mt-6 rb:first:mt-0">
<div className="rb:leading-5 rb:text-[#5B6167] rb:mb-2 rb:pl-1 rb:font-regular">{date.replace(/\u200e|\u200f/g, '')}</div>
{items.map(item => (
<div key={item.updated_at} className="rb:mb-3">
<div className={clsx("rb:p-[8px_13px] rb:rounded-lg rb:leading-5 rb:cursor-pointer rb:hover:bg-[#F0F3F8]", {
'rb:bg-[#FFFFFF] rb:shadow-[0px_2px_4px_0px_rgba(0,0,0,0.15)] rb:font-medium rb:hover:bg-[#FFFFFF]!': item.id === conversation_id,
})}
onClick={() => handleChangeHistory(item.id)}
>
{item.title}
</div>
</div>
))}
</div>
))}
</InfiniteScroll>
</div>
}
<img src={BgImg} className="rb:absolute rb:bottom-0 rb:left-0 rb:w-86.25" />
</div>
<div className="rb:relative rb:h-screen rb:px-4 rb:flex-[1_1_auto]">
<div className='rb:w-190 rb:h-screen rb:mx-auto rb:pt-10'>
<Chat
empty={<Empty url={ChatEmpty} className="rb:h-full" size={[320,180]} title={t('memoryConversation.chatEmpty')} subTitle={t('memoryConversation.emptyDesc')} />}
contentClassName="rb:h-[calc(100%-152px)] "
data={chatList}
streamLoading={streamLoading}
loading={loading}
onChange={setMessage}
onSend={handleSend}
labelFormat={(item) => dayjs(item.created_at).locale('en').format('MMMM D, YYYY [at] h:mm A')}
>
<Form form={form} initialValues={{ memory: false, web_search: false}}>
<Flex gap={8}>
<Form.Item name="web_search" valuePropName="checked" className="rb:mb-0!">
<ButtonCheckbox
icon={OnlineIcon}
checkedIcon={OnlineCheckedIcon}
>
{t(`memoryConversation.web_search`)}
</ButtonCheckbox>
</Form.Item>
<Form.Item name="memory" valuePropName="checked" className="rb:mb-0!">
<ButtonCheckbox
icon={MemoryFunctionIcon}
checkedIcon={MemoryFunctionCheckedIcon}
>
{t(`memoryConversation.memory`)}
</ButtonCheckbox>
</Form.Item>
</Flex>
</Form>
</Chat>
</div>
</div>
</Flex>
)
}
export default Conversation