import {
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memo,
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useCallback,
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useState,
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} from 'react'
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import { useContext } from 'use-context-selector'
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import {
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useStoreApi,
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} from 'reactflow'
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import { RiBookOpenLine, RiCloseLine } from '@remixicon/react'
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import { useTranslation } from 'react-i18next'
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import { useStore } from '@/app/components/workflow/store'
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import ActionButton, { ActionButtonState } from '@/app/components/base/action-button'
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import { BubbleX, LongArrowLeft, LongArrowRight } from '@/app/components/base/icons/src/vender/line/others'
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import BlockIcon from '@/app/components/workflow/block-icon'
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import VariableModalTrigger from '@/app/components/workflow/panel/chat-variable-panel/components/variable-modal-trigger'
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import VariableItem from '@/app/components/workflow/panel/chat-variable-panel/components/variable-item'
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import RemoveEffectVarConfirm from '@/app/components/workflow/nodes/_base/components/remove-effect-var-confirm'
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import type {
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ConversationVariable,
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} from '@/app/components/workflow/types'
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import { findUsedVarNodes, updateNodeVars } from '@/app/components/workflow/nodes/_base/components/variable/utils'
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import { useNodesSyncDraft } from '@/app/components/workflow/hooks/use-nodes-sync-draft'
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import { BlockEnum } from '@/app/components/workflow/types'
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import I18n from '@/context/i18n'
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import { LanguagesSupported } from '@/i18n/language'
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import cn from '@/utils/classnames'
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const ChatVariablePanel = () => {
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const { t } = useTranslation()
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const { locale } = useContext(I18n)
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const store = useStoreApi()
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const setShowChatVariablePanel = useStore(s => s.setShowChatVariablePanel)
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const varList = useStore(s => s.conversationVariables) as ConversationVariable[]
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const updateChatVarList = useStore(s => s.setConversationVariables)
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const { doSyncWorkflowDraft } = useNodesSyncDraft()
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const [showTip, setShowTip] = useState(true)
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const [showVariableModal, setShowVariableModal] = useState(false)
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const [currentVar, setCurrentVar] = useState<ConversationVariable>()
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const [showRemoveVarConfirm, setShowRemoveConfirm] = useState(false)
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const [cacheForDelete, setCacheForDelete] = useState<ConversationVariable>()
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const getEffectedNodes = useCallback((chatVar: ConversationVariable) => {
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const { getNodes } = store.getState()
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const allNodes = getNodes()
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return findUsedVarNodes(
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['conversation', chatVar.name],
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allNodes,
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)
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}, [store])
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const removeUsedVarInNodes = useCallback((chatVar: ConversationVariable) => {
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const { getNodes, setNodes } = store.getState()
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const effectedNodes = getEffectedNodes(chatVar)
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const newNodes = getNodes().map((node) => {
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if (effectedNodes.find(n => n.id === node.id))
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return updateNodeVars(node, ['conversation', chatVar.name], [])
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return node
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})
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setNodes(newNodes)
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}, [getEffectedNodes, store])
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const handleEdit = (chatVar: ConversationVariable) => {
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setCurrentVar(chatVar)
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setShowVariableModal(true)
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}
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const handleDelete = useCallback((chatVar: ConversationVariable) => {
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removeUsedVarInNodes(chatVar)
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updateChatVarList(varList.filter(v => v.id !== chatVar.id))
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setCacheForDelete(undefined)
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setShowRemoveConfirm(false)
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doSyncWorkflowDraft()
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}, [doSyncWorkflowDraft, removeUsedVarInNodes, updateChatVarList, varList])
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const deleteCheck = useCallback((chatVar: ConversationVariable) => {
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const effectedNodes = getEffectedNodes(chatVar)
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if (effectedNodes.length > 0) {
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setCacheForDelete(chatVar)
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setShowRemoveConfirm(true)
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}
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else {
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handleDelete(chatVar)
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}
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}, [getEffectedNodes, handleDelete])
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const handleSave = useCallback(async (chatVar: ConversationVariable) => {
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// add chatVar
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if (!currentVar) {
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const newList = [chatVar, ...varList]
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updateChatVarList(newList)
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doSyncWorkflowDraft()
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return
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}
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// edit chatVar
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const newList = varList.map(v => v.id === currentVar.id ? chatVar : v)
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updateChatVarList(newList)
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// side effects of rename env
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if (currentVar.name !== chatVar.name) {
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const { getNodes, setNodes } = store.getState()
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const effectedNodes = getEffectedNodes(currentVar)
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const newNodes = getNodes().map((node) => {
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if (effectedNodes.find(n => n.id === node.id))
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return updateNodeVars(node, ['conversation', currentVar.name], ['conversation', chatVar.name])
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return node
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})
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setNodes(newNodes)
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}
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doSyncWorkflowDraft()
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}, [currentVar, doSyncWorkflowDraft, getEffectedNodes, store, updateChatVarList, varList])
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return (
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<div
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className={cn(
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'relative flex h-full w-[420px] flex-col rounded-l-2xl border border-components-panel-border bg-components-panel-bg-alt',
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)}
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>
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<div className='system-xl-semibold flex shrink-0 items-center justify-between p-4 pb-0 text-text-primary'>
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{t('workflow.chatVariable.panelTitle')}
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<div className='flex items-center gap-1'>
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<ActionButton state={showTip ? ActionButtonState.Active : undefined} onClick={() => setShowTip(!showTip)}>
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<RiBookOpenLine className='h-4 w-4' />
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</ActionButton>
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<div
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className='flex h-6 w-6 cursor-pointer items-center justify-center'
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onClick={() => setShowChatVariablePanel(false)}
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>
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<RiCloseLine className='h-4 w-4 text-text-tertiary' />
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</div>
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</div>
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</div>
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{showTip && (
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<div className='shrink-0 px-3 pb-2 pt-2.5'>
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<div className='radius-2xl relative bg-background-section-burn p-3'>
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<div className='system-2xs-medium-uppercase inline-block rounded-[5px] border border-divider-deep px-[5px] py-[3px] text-text-tertiary'>TIPS</div>
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<div className='system-sm-regular mb-4 mt-1 text-text-secondary'>
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{t('workflow.chatVariable.panelDescription')}
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<a target='_blank' rel='noopener noreferrer' className='text-text-accent' href={locale !== LanguagesSupported[1] ? 'https://docs.dify.ai/guides/workflow/variables#conversation-variables' : `https://docs.dify.ai/${locale.toLowerCase()}/guides/workflow/variables#hui-hua-bian-liang`}>{t('workflow.chatVariable.docLink')}</a>
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</div>
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<div className='flex items-center gap-2'>
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<div className='radius-lg flex flex-col border border-workflow-block-border bg-workflow-block-bg p-3 pb-4 shadow-md'>
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<BubbleX className='mb-1 h-4 w-4 shrink-0 text-util-colors-teal-teal-700' />
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<div className='system-xs-semibold text-text-secondary'>conversation_var</div>
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<div className='system-2xs-regular text-text-tertiary'>String</div>
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</div>
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<div className='grow'>
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<div className='mb-2 flex items-center gap-2 py-1'>
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<div className='flex h-3 w-16 shrink-0 items-center gap-1 px-1'>
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<LongArrowLeft className='h-2 grow text-text-quaternary' />
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<div className='system-2xs-medium shrink-0 text-text-tertiary'>WRITE</div>
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</div>
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<BlockIcon className='shrink-0' type={BlockEnum.Assigner} />
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<div className='system-xs-semibold grow truncate text-text-secondary'>{t('workflow.blocks.assigner')}</div>
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</div>
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<div className='flex items-center gap-2 py-1'>
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<div className='flex h-3 w-16 shrink-0 items-center gap-1 px-1'>
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<div className='system-2xs-medium shrink-0 text-text-tertiary'>READ</div>
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<LongArrowRight className='h-2 grow text-text-quaternary' />
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</div>
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<BlockIcon className='shrink-0' type={BlockEnum.LLM} />
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<div className='system-xs-semibold grow truncate text-text-secondary'>{t('workflow.blocks.llm')}</div>
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</div>
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</div>
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</div>
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<div className='absolute right-[38px] top-[-4px] z-10 h-3 w-3 rotate-45 bg-background-section-burn'/>
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</div>
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</div>
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)}
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<div className='shrink-0 px-4 pb-3 pt-2'>
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<VariableModalTrigger
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open={showVariableModal}
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setOpen={setShowVariableModal}
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showTip={showTip}
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chatVar={currentVar}
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onSave={handleSave}
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onClose={() => setCurrentVar(undefined)}
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/>
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</div>
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<div className='grow overflow-y-auto rounded-b-2xl px-4'>
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{varList.map(chatVar => (
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<VariableItem
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key={chatVar.id}
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item={chatVar}
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onEdit={handleEdit}
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onDelete={deleteCheck}
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/>
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))}
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</div>
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<RemoveEffectVarConfirm
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isShow={showRemoveVarConfirm}
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onCancel={() => setShowRemoveConfirm(false)}
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onConfirm={() => cacheForDelete && handleDelete(cacheForDelete)}
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/>
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</div>
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)
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}
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export default memo(ChatVariablePanel)
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