contex improvements

src/lib/flowUtils.ts

@@ -0,0 +1,22 @@
+/** Generate short unique node id */
+export const genId = () => `node_${Math.random().toString(36).slice(2, 9)}`
+
+export const DEFAULT_NODE_STYLE: Record<string, { width: number; height: number }> = {
+  config: { width: 320, height: 320 },
+  render: { width: 384, height: 320 },
+  variable: { width: 224, height: 180 },
+  function: { width: 288, height: 260 },
+}
+
+const DEFAULT_DATA: Record<string, any> = {
+  config: { plantuml: '@startuml\n\n@enduml\n', title: '' },
+  render: {},
+  variable: { value: '', valueType: 'string' },
+  function: { body: '// args[0], args[1], ...\nreturn args[0];' },
+}
+
+export function getDefaultDataForType(type: string, newId?: string): any {
+  const base = { ...DEFAULT_DATA[type] }
+  if (type === 'config' && newId) base.title = `config-${newId}`
+  return base
+}