Files
zui/src/components/RenderingNode.tsx
2026-03-06 00:05:45 +01:00

109 lines
4.8 KiB
TypeScript

import React from 'react'
import { Handle, Position } from 'reactflow'
import yaml from 'js-yaml'
import FlowContext from '../lib/flowContext'
type Props = {
id: string
data: any
}
export default function RenderingNode({ id }: Props) {
const [output, setOutput] = React.useState<string>('')
const ctx = React.useContext(FlowContext)
const nodes = ctx?.nodes ?? []
const edges = ctx?.edges ?? []
const incomingEdges = edges.filter((e: any) => e.target === id)
const incomingIds = incomingEdges.map((e: any) => e.source).sort()
const srcId = incomingIds.length > 0 ? incomingIds[0] : null
const srcNode = nodes.find((n: any) => n.id === srcId)
const yamlText = srcNode && srcNode.type === 'config' ? srcNode?.data?.yaml ?? '' : ''
React.useEffect(() => {
// debug
// eslint-disable-next-line no-console
console.debug('RenderingNode:selection', { id, incomingIds, srcNode: srcNode ? { id: srcNode.id, type: srcNode.type, yaml: (srcNode.data?.yaml ?? '').slice(0, 60) } : null })
if (!yamlText) {
if (incomingIds.length === 0) {
setOutput(`No configuration connected (nodes: ${nodes.length}, edges: ${edges.length})`)
return
}
setOutput('No YAML found on connected configuration node')
return
}
try {
// resolve !include directives by inlining YAML from reachable config nodes
const resolveIncludes = (text: string, visited = new Set<string>()): string => {
const includeRegex = /^(\s*)!include\s+([^\s]+)\s*$/gm
return text.replace(includeRegex, (match, indent, ref) => {
const refName = ref.endsWith('.yaml') ? ref.slice(0, -5) : ref
// try to find a node by id or by title
const refNode = nodes.find((n: any) => n.id === refName || (n.data?.title === refName))
if (!refNode) {
throw new Error(`Included node not found: ${ref}`)
}
if (visited.has(refNode.id)) {
throw new Error(`Circular include detected: ${ref}`)
}
// ensure refNode can reach this rendering node
const isReachable = (startId: string, targetId: string) => {
const q: string[] = [startId]
const seen = new Set<string>([startId])
while (q.length) {
const cur = q.shift()!
if (cur === targetId) return true
for (const e of edges) {
if (e.source === cur && !seen.has(e.target)) {
seen.add(e.target)
q.push(e.target)
}
}
}
return false
}
if (!isReachable(refNode.id, id)) {
throw new Error(`Included node not connected to renderer: ${ref}`)
}
visited.add(refNode.id)
const includedRaw = String(refNode.data?.yaml ?? '')
const resolved = resolveIncludes(includedRaw, visited)
visited.delete(refNode.id)
// indent included content to match include position
const indented = resolved
.split('\n')
.map((line: string, idx: number) => (line === '' ? '' : indent + line))
.join('\n')
return indented
})
}
const resolvedYaml = resolveIncludes(yamlText)
const parsed = yaml.load(resolvedYaml)
const newOutput = JSON.stringify(parsed, null, 2)
setOutput((prev) => (prev === newOutput ? prev : newOutput))
} catch (err: any) {
const msg = 'YAML parse/include error: ' + err.message
setOutput((prev) => (prev === msg ? prev : msg))
}
}, [id, incomingIds.join(','), yamlText, nodes.length, edges.length])
return (
<div className="w-80 bg-white rounded shadow hover:shadow-md border border-gray-200">
<div className="px-3 py-2 border-b border-gray-100 flex items-center justify-between">
<div className="text-sm font-medium">{id}</div>
<div className="text-xs text-gray-400">RENDERER</div>
</div>
<pre className="text-xs text-gray-800 max-h-40 overflow-auto p-3">{output}</pre>
<Handle type="target" position={Position.Left} id="in" style={{ background: '#F97316' }} />
</div>
)
}