import type {
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FC,
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ReactNode,
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} from 'react'
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import { memo, useCallback, useEffect, useRef, useState } from 'react'
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import { useTranslation } from 'react-i18next'
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import type {
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ChatConfig,
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ChatItem,
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} from '../../types'
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import Operation from './operation'
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import AgentContent from './agent-content'
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import BasicContent from './basic-content'
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import SuggestedQuestions from './suggested-questions'
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import More from './more'
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import WorkflowProcessItem from './workflow-process'
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import LoadingAnim from '@/app/components/base/chat/chat/loading-anim'
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import Citation from '@/app/components/base/chat/chat/citation'
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import { EditTitle } from '@/app/components/app/annotation/edit-annotation-modal/edit-item'
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import type { AppData } from '@/models/share'
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import AnswerIcon from '@/app/components/base/answer-icon'
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import cn from '@/utils/classnames'
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import { FileList } from '@/app/components/base/file-uploader'
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import ContentSwitch from '../content-switch'
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type AnswerProps = {
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item: ChatItem
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question: string
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index: number
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config?: ChatConfig
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answerIcon?: ReactNode
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responding?: boolean
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showPromptLog?: boolean
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chatAnswerContainerInner?: string
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hideProcessDetail?: boolean
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appData?: AppData
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noChatInput?: boolean
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switchSibling?: (siblingMessageId: string) => void
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}
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const Answer: FC<AnswerProps> = ({
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item,
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question,
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index,
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config,
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answerIcon,
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responding,
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showPromptLog,
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chatAnswerContainerInner,
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hideProcessDetail,
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appData,
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noChatInput,
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switchSibling,
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}) => {
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const { t } = useTranslation()
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const {
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content,
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citation,
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agent_thoughts,
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more,
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annotation,
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workflowProcess,
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allFiles,
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message_files,
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} = item
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const hasAgentThoughts = !!agent_thoughts?.length
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const [containerWidth, setContainerWidth] = useState(0)
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const [contentWidth, setContentWidth] = useState(0)
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const containerRef = useRef<HTMLDivElement>(null)
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const contentRef = useRef<HTMLDivElement>(null)
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const getContainerWidth = () => {
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if (containerRef.current)
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setContainerWidth(containerRef.current?.clientWidth + 16)
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}
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useEffect(() => {
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getContainerWidth()
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}, [])
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const getContentWidth = () => {
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if (contentRef.current)
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setContentWidth(contentRef.current?.clientWidth)
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}
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useEffect(() => {
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if (!responding)
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getContentWidth()
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}, [responding])
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// Recalculate contentWidth when content changes (e.g., SVG preview/source toggle)
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useEffect(() => {
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if (!containerRef.current)
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return
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const resizeObserver = new ResizeObserver(() => {
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getContentWidth()
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})
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resizeObserver.observe(containerRef.current)
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return () => {
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resizeObserver.disconnect()
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}
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}, [])
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const handleSwitchSibling = useCallback((direction: 'prev' | 'next') => {
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if (direction === 'prev')
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item.prevSibling && switchSibling?.(item.prevSibling)
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else
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item.nextSibling && switchSibling?.(item.nextSibling)
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}, [switchSibling, item.prevSibling, item.nextSibling])
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return (
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<div className='mb-2 flex last:mb-0'>
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<div className='relative h-10 w-10 shrink-0'>
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{answerIcon || <AnswerIcon />}
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{responding && (
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<div className='absolute left-[-3px] top-[-3px] flex h-4 w-4 items-center rounded-full border-[0.5px] border-divider-subtle bg-background-section-burn pl-[6px] shadow-xs'>
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<LoadingAnim type='avatar' />
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</div>
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)}
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</div>
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<div className='chat-answer-container group ml-4 w-0 grow pb-4' ref={containerRef}>
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<div className={cn('group relative pr-10', chatAnswerContainerInner)}>
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<div
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ref={contentRef}
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className={cn('body-lg-regular relative inline-block max-w-full rounded-2xl bg-chat-bubble-bg px-4 py-3 text-text-primary', workflowProcess && 'w-full')}
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>
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{
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!responding && (
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<Operation
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hasWorkflowProcess={!!workflowProcess}
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maxSize={containerWidth - contentWidth - 4}
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contentWidth={contentWidth}
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item={item}
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question={question}
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index={index}
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showPromptLog={showPromptLog}
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noChatInput={noChatInput}
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/>
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)
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}
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{/** Render the normal steps */}
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{
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workflowProcess && !hideProcessDetail && (
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<WorkflowProcessItem
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data={workflowProcess}
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item={item}
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hideProcessDetail={hideProcessDetail}
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/>
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)
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}
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{/** Hide workflow steps by it's settings in siteInfo */}
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{
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workflowProcess && hideProcessDetail && appData && (
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<WorkflowProcessItem
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data={workflowProcess}
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item={item}
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hideProcessDetail={hideProcessDetail}
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readonly={!appData.site.show_workflow_steps}
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/>
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)
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}
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{
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responding && !content && !hasAgentThoughts && (
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<div className='flex h-5 w-6 items-center justify-center'>
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<LoadingAnim type='text' />
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</div>
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)
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}
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{
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content && !hasAgentThoughts && (
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<BasicContent item={item} />
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)
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}
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{
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(hasAgentThoughts) && (
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<AgentContent
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item={item}
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responding={responding}
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content={content}
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/>
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)
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}
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{
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!!allFiles?.length && (
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<FileList
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className='my-1'
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files={allFiles}
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showDeleteAction={false}
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showDownloadAction
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canPreview
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/>
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)
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}
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{
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!!message_files?.length && (
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<FileList
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className='my-1'
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files={message_files}
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showDeleteAction={false}
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showDownloadAction
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canPreview
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/>
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)
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}
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{
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annotation?.id && annotation.authorName && (
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<EditTitle
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className='mt-1'
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title={t('appAnnotation.editBy', { author: annotation.authorName })}
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/>
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)
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}
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<SuggestedQuestions item={item} />
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{
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!!citation?.length && !responding && (
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<Citation data={citation} showHitInfo={config?.supportCitationHitInfo} />
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)
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}
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{
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item.siblingCount && item.siblingCount > 1 && item.siblingIndex !== undefined && (
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<ContentSwitch
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count={item.siblingCount}
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currentIndex={item.siblingIndex}
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prevDisabled={!item.prevSibling}
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nextDisabled={!item.nextSibling}
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switchSibling={handleSwitchSibling}
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/>
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)
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}
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</div>
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</div>
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<More more={more} />
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</div>
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</div>
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)
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}
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export default memo(Answer, (prevProps, nextProps) =>
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prevProps.responding === false && nextProps.responding === false,
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)
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