Files
MemoryBear/web/src/components/Chat/ChatContent.tsx
2026-04-01 16:43:45 +08:00

312 lines
15 KiB
TypeScript

/*
* @Author: ZhaoYing
* @Date: 2025-12-10 16:46:17
* @Last Modified by: ZhaoYing
* @Last Modified time: 2026-03-31 15:01:53
*/
import { type FC, useRef, useEffect, useState } from 'react'
import clsx from 'clsx'
import Markdown from '@/components/Markdown'
import type { ChatContentProps } from './types'
import { Spin, Image, Flex, Button } from 'antd'
import { SoundOutlined } from '@ant-design/icons'
import { useTranslation } from 'react-i18next'
import AudioPlayer from './AudioPlayer'
import VideoPlayer from './VideoPlayer'
const getFileUrl = (file: any) => {
return file.thumbUrl || file.url || (file.originFileObj ? URL.createObjectURL(file.originFileObj) : undefined)
}
/**
* Chat Content Display Component
* Responsible for rendering chat message list, supports different role message styles and auto-scrolling
*/
const ChatContent: FC<ChatContentProps> = ({
classNames,
contentClassNames,
data = [],
streamLoading = false,
empty,
labelPosition = 'bottom',
labelFormat,
errorDesc,
renderRuntime,
onSend
}) => {
const { t } = useTranslation()
// Scroll container reference for controlling auto-scroll to bottom
const scrollContainerRef = useRef<(HTMLDivElement | null)>(null)
const prevDataLengthRef = useRef(data.length);
const isScrolledToBottomRef = useRef(true);
const audioRef = useRef<HTMLAudioElement | null>(null)
const [expandedReasoning, setExpandedReasoning] = useState<Set<number>>(new Set())
const [manualToggledReasoning, setManualToggledReasoning] = useState<Set<number>>(new Set())
const toggleReasoning = (index: number) => {
setManualToggledReasoning(prev => new Set(prev).add(index))
setExpandedReasoning(prev => {
const next = new Set(prev)
next.has(index) ? next.delete(index) : next.add(index)
return next
})
}
const isReasoningExpanded = (index: number) => {
if (manualToggledReasoning.has(index)) return expandedReasoning.has(index)
return !data[index]?.content
}
const [playingIndex, setPlayingIndex] = useState<string | null>(null)
const handlePlay = (audio_url: string, audio_status?: string) => {
if (audio_status !== 'completed' && typeof audio_status === 'string') return
if (playingIndex === audio_url) {
audioRef.current?.pause()
setPlayingIndex(null)
return
}
if (audioRef.current) {
audioRef.current.pause()
}
const audio = new Audio(audio_url)
audioRef.current = audio
audio.play()
setPlayingIndex(audio_url)
audio.onended = () => setPlayingIndex(null)
}
// Track scroll position to determine if user is at bottom
useEffect(() => {
const handleScroll = () => {
if (scrollContainerRef.current) {
const { scrollTop, scrollHeight, clientHeight } = scrollContainerRef.current;
// Consider user is at bottom if within 100px of the bottom
isScrolledToBottomRef.current = scrollHeight - scrollTop - clientHeight < 100;
}
};
const container = scrollContainerRef.current;
if (container) {
container.addEventListener('scroll', handleScroll);
// Initial check
handleScroll();
}
return () => {
if (container) {
container.removeEventListener('scroll', handleScroll);
}
};
}, []);
// Auto-scroll to bottom when data changes to show latest messages
// When data array length remains unchanged, if data is updated and user manually scrolled up, don't auto-scroll to bottom
// When data array length changes, auto-scroll to bottom
// If already scrolled to bottom, will auto-scroll to bottom
useEffect(() => {
if (playingIndex && !data.some(item => item.meta_data?.audio_url === playingIndex)) {
audioRef.current?.pause()
setPlayingIndex(null)
}
setTimeout(() => {
if (scrollContainerRef.current) {
// Auto-scroll if data length changed OR user is currently at bottom
if (data.length !== prevDataLengthRef.current || isScrolledToBottomRef.current) {
scrollContainerRef.current.scrollTop = scrollContainerRef.current.scrollHeight;
isScrolledToBottomRef.current = true;
}
prevDataLengthRef.current = data.length;
}
}, 0);
}, [data])
const handleDownload = (file: any) => {
window.open(getFileUrl(file), '_blank')
}
return (
<div ref={scrollContainerRef} className={clsx("rb:relative rb:overflow-y-auto", classNames)}>
{data.length === 0
? empty // Display empty state
: data.map((item, index) => (
<div key={index} className={clsx("rb:relative", {
'rb:mt-6': index !== 0, // Add top margin for non-first messages
'rb:right-0 rb:text-right': item.role === 'user', // User messages right-aligned
'rb:left-0 rb:text-left': item.role === 'assistant', // Assistant messages left-aligned
})}>
{/* Don't display if streaming and content is empty */}
{streamLoading && item.content === '' && !renderRuntime
? <Spin />
: <>
{/* Top label (such as timestamp, username, etc.) */}
{labelPosition === 'top' &&
<div className="rb:text-[#5B6167] rb:text-[12px] rb:leading-4 rb:font-regular rb:px-1">
{labelFormat(item)}
</div>
}
{item.meta_data?.files && item.meta_data?.files.length > 0 && <Flex gap={8} vertical align="end" className="rb:mb-2!">
{item.meta_data?.files?.map((file) => {
if (file.type.includes('image')) {
return (
<div key={file.url || file.uid} className={`rb:inline-block rb:group rb:relative rb:rounded-lg ${contentClassNames}`}>
<Image src={getFileUrl(file)} alt={file.name} className="rb:w-full rb:max-w-80 rb:rounded-lg rb:object-cover rb:cursor-pointer" />
</div>
)
}
if (file.type.includes('video')) {
return (
<div key={file.url || file.uid} className="rb:w-50">
{/* <video src={getFileUrl(file)} controls className="rb:max-w-80 rb:rounded-lg rb:object-cover rb:cursor-pointer" /> */}
<VideoPlayer key={file.url || file.uid} src={getFileUrl(file)} />
</div>
)
}
if (file.type.includes('audio')) {
return (
<div key={file.url || file.uid} className="rb:w-50">
<AudioPlayer key={file.url || file.uid} src={getFileUrl(file)} />
</div>
)
}
return (
<Flex
key={file.url || file.uid}
align="center"
gap={10}
className="rb:text-left rb:w-45 rb:text-[12px] rb:group rb:relative rb:rounded-lg rb-border rb:py-2! rb:px-2.5! rb:border rb:border-[#F6F6F6]"
onClick={() => handleDownload(file)}
>
<div
className={clsx(
"rb:size-5 rb:cursor-pointer rb:bg-cover rb:bg-[url('@/assets/images/conversation/pdf_disabled.svg')]",
file.type?.includes('pdf')
? "rb:bg-[url('@/assets/images/file/pdf.svg')]"
: (file.type?.includes('excel') || file.type?.includes('spreadsheetml.sheet'))
? "rb:bg-[url('@/assets/images/file/excel.svg')]"
: file.type?.includes('csv')
? "rb:bg-[url('@/assets/images/file/csv.svg')]"
: file.type?.includes('html')
? "rb:bg-[url('@/assets/images/file/html.svg')]"
: file.type?.includes('json')
? "rb:bg-[url('@/assets/images/file/json.svg')]"
: file.type?.includes('ppt')
? "rb:bg-[url('@/assets/images/file/ppt.svg')]"
: file.type?.includes('text')
? "rb:bg-[url('@/assets/images/file/txt.svg')]"
: file.type?.includes('markdown')
? "rb:bg-[url('@/assets/images/file/md.svg')]"
: (file.type?.includes('doc') || file.type?.includes('docx') || file.type?.includes('word') || file.type?.includes('wordprocessingml.document'))
? "rb:bg-[url('@/assets/images/file/word.svg')]"
: null
)}
></div>
<div className="rb:flex-1 rb:w-32.5">
<div className="rb:leading-4 rb:text-ellipsis rb:overflow-hidden rb:whitespace-nowrap">{file.name}</div>
<div className="rb:leading-3.5 rb:mt-0.5 rb:text-[#5B6167] rb:text-ellipsis rb:overflow-hidden rb:whitespace-nowrap">{file.type?.split('/')[file.type?.split('/').length - 1]} · {file.size}</div>
</div>
</Flex>
)
})}
</Flex>}
{/* Message bubble */}
<div className={clsx('rb:text-left rb:leading-5 rb:inline-block rb:wrap-break-word rb:relative', item.role === 'user' ? contentClassNames : '', {
// Error message style (content is null and not assistant message)
'rb:bg-[rgba(255,93,52,0.08)] rb:text-[#FF5D34]': (item.status && item.status !== 'completed') || (errorDesc && item.role === 'assistant' && item.content === null && !renderRuntime),
// Assistant message style
'rb:bg-[#E3EBFD] rb:p-[10px_12px_2px_12px] rb:rounded-lg rb:max-w-130': item.role === 'user',
'rb:max-w-full': item.role === 'assistant',
// User message style
'rb:text-[#212332]': item.role === 'assistant' && (item.content || item.content === '' || typeof renderRuntime === 'function'),
'rb:mt-1': labelPosition === 'top',
'rb:mb-1': labelPosition === 'bottom',
})}>
{item.meta_data?.reasoning_content &&
<div className={clsx("rb:mb-4 rb-border rb:rounded-xl rb:px-4 rb:pt-4 rb:bg-white", {
'rb:hover:bg-[#F6F6F6] rb:w-64': !isReasoningExpanded(index)
})}>
<Flex
align="center"
justify="space-between"
className="rb:font-medium rb:pb-4!"
>
<span>{t('memoryConversation.reasoning_content')}</span>
<Flex
align="center"
justify="center"
className={clsx("rb:size-6.5 rb:cursor-pointer rb-border rb:rounded-lg", {
'rb:hover:bg-[#F6F6F6]!': isReasoningExpanded(index)
})}
onClick={() => toggleReasoning(index)}
>
<div
className={clsx("rb:size-4 rb:bg-cover", {
'rb:bg-[url("@/assets/images/conversation/compress.svg")]': isReasoningExpanded(index),
'rb:bg-[url("@/assets/images/conversation/expand.svg")]': !isReasoningExpanded(index)
})}
></div>
</Flex>
</Flex>
{isReasoningExpanded(index) && <Markdown content={item.meta_data.reasoning_content} className="rb:text-[#5B6167] rb:text-[12px]" />}
</div>
}
{item.status && <div className="rb:size-5 rb:bg-cover rb:bg-[url('@/assets/images/conversation/exclamation_circle.svg')] rb:absolute rb:-left-7"></div>}
{item.subContent && renderRuntime && renderRuntime(item, index)}
{/* Render message content using Markdown component */}
<Markdown content={renderRuntime ? item.content ?? '' : item.content ?? errorDesc ?? ''} />
{item.meta_data?.suggested_questions && item.meta_data?.suggested_questions?.length > 0 && <Flex wrap className="rb:my-1!">
{item.meta_data?.suggested_questions?.map((question, idx) => (
<Button key={idx} size="small" className="rb:text-[12px]! rb:text-[#155EEF]!"
onClick={() => onSend?.(question)}
>{question}</Button>
))}
</Flex>}
{item.meta_data?.citations && item.meta_data?.citations.length > 0 &&
<Flex vertical gap={4} className="rb:mt-1! rb:pt-3! rb-border-t rb:mb-2!">
<div className="rb:font-medium">{t('memoryConversation.citations')}</div>
{item.meta_data?.citations?.map((citation, idx) => (
<div
key={idx}
className="rb:text-[#155EEF] rb:leading-5 rb:underline rb:cursor-pointer"
onClick={() => {
const params = new URLSearchParams({ documentId: citation.document_id, parentId: citation.knowledge_id });
window.open(`/#/knowledge-base/${citation.knowledge_id}/DocumentDetails?${params}`, '_blank');
}}
>{citation.file_name}</div>
))}
</Flex>
}
</div>
{/* Bottom label (such as timestamp, username, etc.) */}
{labelPosition === 'bottom' && <Flex gap={16} align="center" justify={item.role === 'user' ? 'end' : 'start'}>
{item.meta_data?.audio_url && <>
{playingIndex !== item.meta_data?.audio_url && item.meta_data?.audio_status === 'pending'
? <Spin />
: playingIndex !== item.meta_data?.audio_url
? <SoundOutlined className={clsx("rb:cursor-pointer rb:size-5.5", {
'rb:text-[#FF5D34]': item.meta_data?.audio_status === 'error',
'rb:hover:text-[#155EEF]!': !item.meta_data?.audio_status || !['pending', 'error'].includes(item.meta_data?.audio_status)
})} onClick={() => handlePlay(item.meta_data?.audio_url!, item.meta_data?.audio_status)} />
: <div
className="rb:size-5.5 rb:cursor-pointer rb:bg-cover rb:bg-[url('@/assets/images/conversation/audio_ing.gif')]"
onClick={() => handlePlay(item.meta_data?.audio_url!, item.meta_data?.audio_status)}
/>
}
</>}
<div className="rb:text-[#5B6167] rb:text-[12px] rb:leading-4 rb:font-regular">
{labelFormat(item)}
</div>
</Flex>
}
</>
}
</div>
))
}
</div>
)
}
export default ChatContent