chore(markdown): Prepare directory structure for CodeBlock refactor
parent
9b1dc1de7a
commit
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import ReactMarkdown from 'react-markdown'
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import ReactEcharts from 'echarts-for-react'
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import 'katex/dist/katex.min.css'
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import RemarkMath from 'remark-math'
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import RemarkBreaks from 'remark-breaks'
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import RehypeKatex from 'rehype-katex'
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import RemarkGfm from 'remark-gfm'
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import RehypeRaw from 'rehype-raw'
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import SyntaxHighlighter from 'react-syntax-highlighter'
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import {
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atelierHeathDark,
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atelierHeathLight,
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} from 'react-syntax-highlighter/dist/esm/styles/hljs'
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import { Component, memo, useEffect, useMemo, useRef, useState } from 'react'
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import { flow } from 'lodash-es'
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import ActionButton from '@/app/components/base/action-button'
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import CopyIcon from '@/app/components/base/copy-icon'
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import SVGBtn from '@/app/components/base/svg'
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import Flowchart from '@/app/components/base/mermaid'
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import ImageGallery from '@/app/components/base/image-gallery'
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import { useChatContext } from '@/app/components/base/chat/chat/context'
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import VideoGallery from '@/app/components/base/video-gallery'
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import AudioGallery from '@/app/components/base/audio-gallery'
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import MarkdownButton from '@/app/components/base/markdown-blocks/button'
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import MarkdownForm from '@/app/components/base/markdown-blocks/form'
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import MarkdownMusic from '@/app/components/base/markdown-blocks/music'
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import ThinkBlock from '@/app/components/base/markdown-blocks/think-block'
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import { Theme } from '@/types/app'
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import useTheme from '@/hooks/use-theme'
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import cn from '@/utils/classnames'
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import SVGRenderer from './svg-gallery'
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// Available language https://github.com/react-syntax-highlighter/react-syntax-highlighter/blob/master/AVAILABLE_LANGUAGES_HLJS.MD
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const capitalizationLanguageNameMap: Record<string, string> = {
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sql: 'SQL',
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javascript: 'JavaScript',
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java: 'Java',
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typescript: 'TypeScript',
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vbscript: 'VBScript',
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css: 'CSS',
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html: 'HTML',
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xml: 'XML',
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php: 'PHP',
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python: 'Python',
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yaml: 'Yaml',
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mermaid: 'Mermaid',
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markdown: 'MarkDown',
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makefile: 'MakeFile',
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echarts: 'ECharts',
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shell: 'Shell',
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powershell: 'PowerShell',
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json: 'JSON',
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latex: 'Latex',
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svg: 'SVG',
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abc: 'ABC',
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}
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const getCorrectCapitalizationLanguageName = (language: string) => {
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if (!language)
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return 'Plain'
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if (language in capitalizationLanguageNameMap)
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return capitalizationLanguageNameMap[language]
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return language.charAt(0).toUpperCase() + language.substring(1)
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}
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const preprocessLaTeX = (content: string) => {
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if (typeof content !== 'string')
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return content
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const codeBlockRegex = /```[\s\S]*?```/g
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const codeBlocks = content.match(codeBlockRegex) || []
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let processedContent = content.replace(codeBlockRegex, 'CODE_BLOCK_PLACEHOLDER')
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processedContent = flow([
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(str: string) => str.replace(/\\\[(.*?)\\\]/g, (_, equation) => `$$${equation}$$`),
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(str: string) => str.replace(/\\\[([\s\S]*?)\\\]/g, (_, equation) => `$$${equation}$$`),
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(str: string) => str.replace(/\\\((.*?)\\\)/g, (_, equation) => `$$${equation}$$`),
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(str: string) => str.replace(/(^|[^\\])\$(.+?)\$/g, (_, prefix, equation) => `${prefix}$${equation}$`),
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])(processedContent)
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codeBlocks.forEach((block) => {
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processedContent = processedContent.replace('CODE_BLOCK_PLACEHOLDER', block)
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})
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return processedContent
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}
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const preprocessThinkTag = (content: string) => {
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const thinkOpenTagRegex = /<think>\n/g
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const thinkCloseTagRegex = /\n<\/think>/g
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return flow([
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(str: string) => str.replace(thinkOpenTagRegex, '<details data-think=true>\n'),
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(str: string) => str.replace(thinkCloseTagRegex, '\n[ENDTHINKFLAG]</details>'),
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])(content)
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}
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export function PreCode(props: { children: any }) {
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const ref = useRef<HTMLPreElement>(null)
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return (
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<pre ref={ref}>
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<span
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className="copy-code-button"
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></span>
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{props.children}
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</pre>
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)
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}
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// **Add code block
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// Avoid error #185 (Maximum update depth exceeded.
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// This can happen when a component repeatedly calls setState inside componentWillUpdate or componentDidUpdate.
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// React limits the number of nested updates to prevent infinite loops.)
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// Reference A: https://reactjs.org/docs/error-decoder.html?invariant=185
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// Reference B1: https://react.dev/reference/react/memo
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// Reference B2: https://react.dev/reference/react/useMemo
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// ****
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// The original error that occurred in the streaming response during the conversation:
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// Error: Minified React error 185;
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// visit https://reactjs.org/docs/error-decoder.html?invariant=185 for the full message
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// or use the non-minified dev environment for full errors and additional helpful warnings.
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const CodeBlock: any = memo(({ inline, className, children = '', ...props }: any) => {
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const { theme } = useTheme()
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const [isSVG, setIsSVG] = useState(true)
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const [chartState, setChartState] = useState<'loading' | 'success' | 'error'>('loading')
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const [finalChartOption, setFinalChartOption] = useState<any>(null)
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const echartsRef = useRef<any>(null)
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const contentRef = useRef<string>('')
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const processedRef = useRef<boolean>(false) // Track if content was successfully processed
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const match = /language-(\w+)/.exec(className || '')
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const language = match?.[1]
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const languageShowName = getCorrectCapitalizationLanguageName(language || '')
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const isDarkMode = theme === Theme.dark
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// Handle container resize for echarts
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useEffect(() => {
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if (language !== 'echarts' || !echartsRef.current) return
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const handleResize = () => {
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// This gets the echarts instance from the component
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const instance = echartsRef.current?.getEchartsInstance?.()
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if (instance)
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instance.resize()
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}
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window.addEventListener('resize', handleResize)
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// Also manually trigger resize after a short delay to ensure proper sizing
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const resizeTimer = setTimeout(handleResize, 200)
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return () => {
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window.removeEventListener('resize', handleResize)
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clearTimeout(resizeTimer)
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}
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}, [language, echartsRef.current])
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// Process chart data when content changes
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useEffect(() => {
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// Only process echarts content
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if (language !== 'echarts') return
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// Reset state when new content is detected
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if (!contentRef.current) {
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setChartState('loading')
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processedRef.current = false
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}
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const newContent = String(children).replace(/\n$/, '')
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// Skip if content hasn't changed
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if (contentRef.current === newContent) return
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contentRef.current = newContent
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const trimmedContent = newContent.trim()
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if (!trimmedContent) return
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// Detect if this is historical data (already complete)
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// Historical data typically comes as a complete code block with complete JSON
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const isCompleteJson
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= (trimmedContent.startsWith('{') && trimmedContent.endsWith('}')
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&& trimmedContent.split('{').length === trimmedContent.split('}').length)
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|| (trimmedContent.startsWith('[') && trimmedContent.endsWith(']')
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&& trimmedContent.split('[').length === trimmedContent.split(']').length)
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// If the JSON structure looks complete, try to parse it right away
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if (isCompleteJson && !processedRef.current) {
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try {
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const parsed = JSON.parse(trimmedContent)
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if (typeof parsed === 'object' && parsed !== null) {
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setFinalChartOption(parsed)
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setChartState('success')
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processedRef.current = true
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return
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}
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}
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catch {
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try {
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// eslint-disable-next-line no-new-func, sonarjs/code-eval
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const result = new Function(`return ${trimmedContent}`)()
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if (typeof result === 'object' && result !== null) {
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setFinalChartOption(result)
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setChartState('success')
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processedRef.current = true
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return
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}
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}
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catch {
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// If we have a complete JSON structure but it doesn't parse,
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// it's likely an error rather than incomplete data
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setChartState('error')
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processedRef.current = true
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return
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}
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}
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}
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// If we get here, either the JSON isn't complete yet, or we failed to parse it
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// Check more conditions for streaming data
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const isIncomplete
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= trimmedContent.length < 5
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|| (trimmedContent.startsWith('{')
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&& (!trimmedContent.endsWith('}')
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|| trimmedContent.split('{').length !== trimmedContent.split('}').length))
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|| (trimmedContent.startsWith('[')
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&& (!trimmedContent.endsWith(']')
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|| trimmedContent.split('[').length !== trimmedContent.split('}').length))
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|| (trimmedContent.split('"').length % 2 !== 1)
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|| (trimmedContent.includes('{"') && !trimmedContent.includes('"}'))
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// Only try to parse streaming data if it looks complete and hasn't been processed
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if (!isIncomplete && !processedRef.current) {
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let isValidOption = false
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try {
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const parsed = JSON.parse(trimmedContent)
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if (typeof parsed === 'object' && parsed !== null) {
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setFinalChartOption(parsed)
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isValidOption = true
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}
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}
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catch {
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try {
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// eslint-disable-next-line no-new-func, sonarjs/code-eval
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const result = new Function(`return ${trimmedContent}`)()
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if (typeof result === 'object' && result !== null) {
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setFinalChartOption(result)
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isValidOption = true
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}
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}
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catch {
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// Both parsing methods failed, but content looks complete
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setChartState('error')
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processedRef.current = true
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}
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}
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if (isValidOption) {
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setChartState('success')
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processedRef.current = true
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}
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}
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}, [language, children])
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const renderCodeContent = useMemo(() => {
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const content = String(children).replace(/\n$/, '')
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switch (language) {
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case 'mermaid':
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if (isSVG)
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return <Flowchart PrimitiveCode={content} />
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break
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case 'echarts': {
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// Loading state: show loading indicator
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if (chartState === 'loading') {
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return (
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<div style={{
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minHeight: '350px',
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width: '100%',
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display: 'flex',
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flexDirection: 'column',
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alignItems: 'center',
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justifyContent: 'center',
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borderBottomLeftRadius: '10px',
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borderBottomRightRadius: '10px',
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backgroundColor: isDarkMode ? 'var(--color-components-input-bg-normal)' : 'transparent',
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color: 'var(--color-text-secondary)',
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}}>
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<div style={{
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marginBottom: '12px',
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width: '24px',
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height: '24px',
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}}>
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{/* Rotating spinner that works in both light and dark modes */}
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<svg width="24" height="24" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg" style={{ animation: 'spin 1.5s linear infinite' }}>
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<style>
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{`
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@keyframes spin {
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0% { transform: rotate(0deg); }
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100% { transform: rotate(360deg); }
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}
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`}
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</style>
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<circle opacity="0.2" cx="12" cy="12" r="10" stroke="currentColor" strokeWidth="2" />
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<path d="M12 2C6.47715 2 2 6.47715 2 12" stroke="currentColor" strokeWidth="2" strokeLinecap="round" />
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</svg>
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</div>
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<div style={{
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fontFamily: 'var(--font-family)',
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fontSize: '14px',
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}}>Chart loading...</div>
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</div>
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)
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}
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// Success state: show the chart
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if (chartState === 'success' && finalChartOption) {
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return (
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<div style={{
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minWidth: '300px',
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minHeight: '350px',
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width: '100%',
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overflowX: 'auto',
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borderBottomLeftRadius: '10px',
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borderBottomRightRadius: '10px',
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transition: 'background-color 0.3s ease',
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}}>
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<ErrorBoundary>
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<ReactEcharts
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ref={echartsRef}
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option={finalChartOption}
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style={{
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height: '350px',
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width: '100%',
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}}
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theme={isDarkMode ? 'dark' : undefined}
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opts={{
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renderer: 'canvas',
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width: 'auto',
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}}
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notMerge={true}
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onEvents={{
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// Force resize when chart is finished rendering
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finished: () => {
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const instance = echartsRef.current?.getEchartsInstance?.()
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if (instance)
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instance.resize()
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},
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}}
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/>
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</ErrorBoundary>
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</div>
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)
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}
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// Error state: show error message
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const errorOption = {
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title: {
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text: 'ECharts error - Wrong option.',
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},
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}
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return (
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<div style={{
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minWidth: '300px',
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minHeight: '350px',
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width: '100%',
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overflowX: 'auto',
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borderBottomLeftRadius: '10px',
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borderBottomRightRadius: '10px',
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transition: 'background-color 0.3s ease',
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}}>
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<ErrorBoundary>
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<ReactEcharts
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ref={echartsRef}
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option={errorOption}
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style={{
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height: '350px',
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width: '100%',
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}}
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theme={isDarkMode ? 'dark' : undefined}
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opts={{
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renderer: 'canvas',
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width: 'auto',
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}}
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notMerge={true}
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/>
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</ErrorBoundary>
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</div>
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)
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}
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case 'svg':
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if (isSVG) {
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return (
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<ErrorBoundary>
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<SVGRenderer content={content} />
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</ErrorBoundary>
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)
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}
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break
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case 'abc':
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return (
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<ErrorBoundary>
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<MarkdownMusic children={content} />
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</ErrorBoundary>
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)
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default:
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return (
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<SyntaxHighlighter
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{...props}
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style={theme === Theme.light ? atelierHeathLight : atelierHeathDark}
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customStyle={{
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paddingLeft: 12,
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borderBottomLeftRadius: '10px',
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borderBottomRightRadius: '10px',
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backgroundColor: 'var(--color-components-input-bg-normal)',
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}}
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language={match?.[1]}
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showLineNumbers
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PreTag="div"
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>
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{content}
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</SyntaxHighlighter>
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)
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}
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}, [children, language, isSVG, finalChartOption, props, theme, match])
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if (inline || !match)
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return <code {...props} className={className}>{children}</code>
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return (
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<div className='relative'>
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<div className='flex h-8 items-center justify-between rounded-t-[10px] border-b border-divider-subtle bg-components-input-bg-normal p-1 pl-3'>
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<div className='system-xs-semibold-uppercase text-text-secondary'>{languageShowName}</div>
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<div className='flex items-center gap-1'>
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{(['mermaid', 'svg']).includes(language!) && <SVGBtn isSVG={isSVG} setIsSVG={setIsSVG} />}
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<ActionButton>
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<CopyIcon content={String(children).replace(/\n$/, '')} />
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</ActionButton>
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</div>
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</div>
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{renderCodeContent}
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</div>
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)
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})
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CodeBlock.displayName = 'CodeBlock'
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const VideoBlock: any = memo(({ node }: any) => {
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const srcs = node.children.filter((child: any) => 'properties' in child).map((child: any) => (child as any).properties.src)
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if (srcs.length === 0) {
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const src = node.properties?.src
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if (src)
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return <VideoGallery key={src} srcs={[src]} />
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return null
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}
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return <VideoGallery key={srcs.join()} srcs={srcs} />
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})
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VideoBlock.displayName = 'VideoBlock'
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const AudioBlock: any = memo(({ node }: any) => {
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const srcs = node.children.filter((child: any) => 'properties' in child).map((child: any) => (child as any).properties.src)
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if (srcs.length === 0) {
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const src = node.properties?.src
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if (src)
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return <AudioGallery key={src} srcs={[src]} />
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return null
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}
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return <AudioGallery key={srcs.join()} srcs={srcs} />
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})
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AudioBlock.displayName = 'AudioBlock'
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const ScriptBlock = memo(({ node }: any) => {
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const scriptContent = node.children[0]?.value || ''
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return `<script>${scriptContent}</script>`
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})
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ScriptBlock.displayName = 'ScriptBlock'
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const Paragraph = (paragraph: any) => {
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const { node }: any = paragraph
|
||||
const children_node = node.children
|
||||
if (children_node && children_node[0] && 'tagName' in children_node[0] && children_node[0].tagName === 'img') {
|
||||
return (
|
||||
<div className="markdown-img-wrapper">
|
||||
<ImageGallery srcs={[children_node[0].properties.src]} />
|
||||
{
|
||||
Array.isArray(paragraph.children) && paragraph.children.length > 1 && (
|
||||
<div className="mt-2">{paragraph.children.slice(1)}</div>
|
||||
)
|
||||
}
|
||||
</div>
|
||||
)
|
||||
}
|
||||
return <p>{paragraph.children}</p>
|
||||
}
|
||||
|
||||
const Img = ({ src }: any) => {
|
||||
return <div className="markdown-img-wrapper"><ImageGallery srcs={[src]} /></div>
|
||||
}
|
||||
|
||||
const Link = ({ node, children, ...props }: any) => {
|
||||
if (node.properties?.href && node.properties.href?.toString().startsWith('abbr')) {
|
||||
// eslint-disable-next-line react-hooks/rules-of-hooks
|
||||
const { onSend } = useChatContext()
|
||||
const hidden_text = decodeURIComponent(node.properties.href.toString().split('abbr:')[1])
|
||||
|
||||
return <abbr className="cursor-pointer underline !decoration-primary-700 decoration-dashed" onClick={() => onSend?.(hidden_text)} title={node.children[0]?.value || ''}>{node.children[0]?.value || ''}</abbr>
|
||||
}
|
||||
else {
|
||||
return <a {...props} target="_blank" className="cursor-pointer underline !decoration-primary-700 decoration-dashed">{children || 'Download'}</a>
|
||||
}
|
||||
}
|
||||
|
||||
export function Markdown(props: { content: string; className?: string; customDisallowedElements?: string[] }) {
|
||||
const latexContent = flow([
|
||||
preprocessThinkTag,
|
||||
preprocessLaTeX,
|
||||
])(props.content)
|
||||
|
||||
return (
|
||||
<div className={cn('markdown-body', '!text-text-primary', props.className)}>
|
||||
<ReactMarkdown
|
||||
remarkPlugins={[
|
||||
RemarkGfm,
|
||||
[RemarkMath, { singleDollarTextMath: false }],
|
||||
RemarkBreaks,
|
||||
]}
|
||||
rehypePlugins={[
|
||||
RehypeKatex,
|
||||
RehypeRaw as any,
|
||||
// The Rehype plug-in is used to remove the ref attribute of an element
|
||||
() => {
|
||||
return (tree) => {
|
||||
const iterate = (node: any) => {
|
||||
if (node.type === 'element' && node.properties?.ref)
|
||||
delete node.properties.ref
|
||||
|
||||
if (node.type === 'element' && !/^[a-z][a-z0-9]*$/i.test(node.tagName)) {
|
||||
node.type = 'text'
|
||||
node.value = `<${node.tagName}`
|
||||
}
|
||||
|
||||
if (node.children)
|
||||
node.children.forEach(iterate)
|
||||
}
|
||||
tree.children.forEach(iterate)
|
||||
}
|
||||
},
|
||||
]}
|
||||
disallowedElements={['iframe', 'head', 'html', 'meta', 'link', 'style', 'body', ...(props.customDisallowedElements || [])]}
|
||||
components={{
|
||||
code: CodeBlock,
|
||||
img: Img,
|
||||
video: VideoBlock,
|
||||
audio: AudioBlock,
|
||||
a: Link,
|
||||
p: Paragraph,
|
||||
button: MarkdownButton,
|
||||
form: MarkdownForm,
|
||||
script: ScriptBlock as any,
|
||||
details: ThinkBlock,
|
||||
}}
|
||||
>
|
||||
{/* Markdown detect has problem. */}
|
||||
{latexContent}
|
||||
</ReactMarkdown>
|
||||
</div>
|
||||
)
|
||||
}
|
||||
|
||||
// **Add an ECharts runtime error handler
|
||||
// Avoid error #7832 (Crash when ECharts accesses undefined objects)
|
||||
// This can happen when a component attempts to access an undefined object that references an unregistered map, causing the program to crash.
|
||||
|
||||
export default class ErrorBoundary extends Component {
|
||||
constructor(props: any) {
|
||||
super(props)
|
||||
this.state = { hasError: false }
|
||||
}
|
||||
|
||||
componentDidCatch(error: any, errorInfo: any) {
|
||||
this.setState({ hasError: true })
|
||||
console.error(error, errorInfo)
|
||||
}
|
||||
|
||||
render() {
|
||||
// eslint-disable-next-line ts/ban-ts-comment
|
||||
// @ts-expect-error
|
||||
if (this.state.hasError)
|
||||
return <div>Oops! An error occurred. This could be due to an ECharts runtime error or invalid SVG content. <br />(see the browser console for more information)</div>
|
||||
// eslint-disable-next-line ts/ban-ts-comment
|
||||
// @ts-expect-error
|
||||
return this.props.children
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue