From 5b07bd488748c0c9b18621002ef66b90ba94e2b6 Mon Sep 17 00:00:00 2001
From: dtoro <d.toro.v@pm.me>
Date: Sat, 7 Mar 2026 22:13:12 +0100
Subject: [PATCH] eventual rendfering

---
 src/components/graph/RenderingNode.tsx | 76 +++++++++++++++++++++++---
 1 file changed, 69 insertions(+), 7 deletions(-)

diff --git a/src/components/graph/RenderingNode.tsx b/src/components/graph/RenderingNode.tsx
index 6fe64f8..ba2f358 100644
--- a/src/components/graph/RenderingNode.tsx
+++ b/src/components/graph/RenderingNode.tsx
@@ -88,40 +88,102 @@ export const RenderingNode = memo(function RenderingNode({ id, width, height }:
     const plantumlText = srcNode && srcNode.type === 'config' ? srcNode?.data?.plantuml ?? '' : ''
     const srcData = srcNode?.data ?? {}
 
+    /** Set of node IDs that can affect this render node (configs in the chain + variables/functions feeding them) */
+    const connectedNodeIds = useMemo(() => {
+        const out = new Set<string>()
+        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
+        }
+        const resolveRef = (name: string) => {
+            const refName = name.replace(/\.(puml|html)$/, '').trim()
+            return nodes.find((n: any) => n.id === refName || n.data?.title === refName)?.id ?? refName
+        }
+        const getTemplateRefs = (content: string): string[] => {
+            const refs: string[] = []
+            const extendMatch = content.match(/\{\%\s*extends\s+["']([^"']+)["']\s*\%\}/)
+            if (extendMatch) refs.push(extendMatch[1].trim())
+            const includeRegex = /\{\%\s*include\s+["']([^"']+)["']\s*\%\}/g
+            let m
+            while ((m = includeRegex.exec(content)) !== null) refs.push(m[1].trim())
+            const importRegex = /\{\%\s*import\s+["']([^"']+)["']\s+as\s+\w+\s*\%\}/g
+            while ((m = importRegex.exec(content)) !== null) refs.push(m[1].trim())
+            return refs
+        }
+        const addConfigRefs = (nodeId: string, visited: Set<string>) => {
+            if (visited.has(nodeId)) return
+            const node = nodes.find((n: any) => n.id === nodeId && n.type === 'config')
+            if (!node) return
+            visited.add(nodeId)
+            out.add(nodeId)
+            const content = String(node.data?.plantuml ?? '')
+            for (const ref of getTemplateRefs(content)) {
+                const refId = resolveRef(ref)
+                if (refId && nodes.some((n: any) => n.id === refId && n.type === 'config') && isReachable(refId, id))
+                    addConfigRefs(refId, visited)
+            }
+        }
+        const configVisited = new Set<string>()
+        for (const nid of incomingIds) {
+            const node = nodes.find((n: any) => n.id === nid)
+            if (node?.type === 'config') addConfigRefs(nid, configVisited)
+            else out.add(nid)
+        }
+        for (const e of edges) {
+            if (out.has(e.target)) out.add(e.source)
+        }
+        return out
+    }, [nodes, edges, id, incomingIds])
+
     const configSignature = useMemo(
         () =>
             nodes
-                .filter((n: any) => n.type === 'config')
+                .filter((n: any) => n.type === 'config' && connectedNodeIds.has(n.id))
                 .map((n: any) => `${n.id}:${n.data?.title ?? ''}:${n.data?.plantuml ?? ''}`)
+                .sort()
                 .join('|'),
-        [nodes]
+        [nodes, connectedNodeIds]
     )
 
     const edgesSignature = useMemo(
         () =>
             edges
+                .filter((e: any) => connectedNodeIds.has(e.source) && (connectedNodeIds.has(e.target) || e.target === id))
                 .map((e: any) => `${e.source}->${e.target}`)
                 .sort()
                 .join('|'),
-        [edges]
+        [edges, connectedNodeIds, id]
     )
 
     const variablesSignature = useMemo(
         () =>
             nodes
-                .filter((n: any) => n.type === 'variable')
+                .filter((n: any) => n.type === 'variable' && connectedNodeIds.has(n.id))
                 .map((n: any) => `${n.id}:${n.data?.value}`)
+                .sort()
                 .join('|'),
-        [nodes]
+        [nodes, connectedNodeIds]
     )
 
     const functionsSignature = useMemo(
         () =>
             nodes
-                .filter((n: any) => n.type === 'function')
+                .filter((n: any) => n.type === 'function' && connectedNodeIds.has(n.id))
                 .map((n: any) => `${n.id}:${n.data?.body ?? ''}`)
+                .sort()
                 .join('|'),
-        [nodes]
+        [nodes, connectedNodeIds]
     )
 
     useEffect(() => {