ssshooter/mind-elixir-core/streaming-mindmap

npm install mind-elixir

import MindElixir, { type MindElixirData, type MindElixirInstance } from 'mind-elixir'
import { useEffect, useRef } from 'react'
export function MindmapRenderer({ data }: { data: MindElixirData | null }) {
  const elRef = useRef<HTMLDivElement>(null)
  const meRef = useRef<MindElixirInstance | null>(null)
  useEffect(() => {
    if (!elRef.current) return
    meRef.current = new MindElixir({
      el: elRef.current,
      direction: MindElixir.RIGHT,
    })
    // Initial empty state or loading state
    meRef.current.init(data || { nodeData: { topic: 'Loading...', id: 'root' } })
    return () => {
      // Cleanup if necessary
    }
  }, [])
  // Update effect
  useEffect(() => {
    if (meRef.current && data) {
      // Refresh the graph with new data
      meRef.current.refresh(data)
    }
  }, [data])
  return <div ref={elRef} style={{ height: '500px', width: '100%' }} />
}

- Root Node
  - Child Node 1
    - Child Node 1-1
    - Child Node 1-2
    - Child Node 1-3
    - }:2 Summary of first two nodes
  - Child Node 2
    - Child Node 2-1 [^id1]
    - Child Node 2-2 [^id2]
    - Child Node 2-3 {color: "#e87a90"}
    - > [^id1] <-Bidirectional Link-> [^id2]
  - Child Node 3
    - Child Node 3-1 [^id3]
    - Child Node 3-2 [^id4]
    - Child Node 3-3 [^id5]
    - > [^id3] >-Unidirectional Link-> [^id4]
    - > [^id3] <-Unidirectional Link-< [^id5]
  - Child Node 4
    - Child Node 4-1 [^id6]
    - Child Node 4-2 [^id7]
    - Child Node 4-3 [^id8]
    - } Summary of all previous nodes
    - Child Node 4-4
  - > [^id1] <-Link position is not restricted, as long as the id can be found during rendering-> [^id8]

import { plaintextToMindElixir } from 'mind-elixir/plaintextConverter'
 
// Helper to clean Markdown code blocks if your stream includes them
function cleanStreamContent(content: string): string {
  return content
    .replace(/^```[\w]*\n?/gm, '')
    .replace(/```$/gm, '')
    .trim()
}
 
// State hooks in your parent component
const [mindmapData, setMindmapData] = useState<MindElixirData | null>(null)
const accumulatedText = useRef('')
const lastRenderTime = useRef(0)
 
// Streaming function (Generic Example)
async function startStreaming(url: string) {
  const response = await fetch(url)
  const reader = response.body?.getReader()
  const decoder = new TextDecoder()
 
  if (!reader) return
 
  while (true) {
    const { done, value } = await reader.read()
    if (done) break
 
    const chunk = decoder.decode(value)
    accumulatedText.current += chunk
 
    // Throttle updates to avoid freezing the UI
    const now = Date.now()
    if (now - lastRenderTime.current > 500) {
      // 500ms throttle
      updateMindmap()
      lastRenderTime.current = now
    }
  }
 
  // Final update
  updateMindmap()
}
 
function updateMindmap() {
  try {
    const cleanText = cleanStreamContent(accumulatedText.current)
    const data = plaintextToMindElixir(cleanText)
    setMindmapData(data) // This triggers the useEffect in MindmapRenderer
  } catch (e) {
    // Ignore parse errors from incomplete chunks
    console.warn('Partial parse error ignored')
  }
}

// Scroll to last node (inside MindmapRenderer update effect)
const lastNode = findLastNode(data.nodeData) // Implement traversal to find last node
if (lastNode?.id) {
  const nodeEle = meRef.current.findEle(lastNode.id)
  if (nodeEle) meRef.current.scrollIntoView(nodeEle)
}