feat: add createAttachFunction for aid with attach input as function

Author: nartc

libs/angular-three/src/index.ts

@@ -10,6 +10,7 @@ export * from './lib/pipes/push';
 export * from './lib/stores/rx-store';
 export * from './lib/stores/store';
 export * from './lib/types';
+export { createAttachFunction } from './lib/utils/attach';
 export * from './lib/utils/instance';
 export * from './lib/utils/is';
 export * from './lib/utils/update';

libs/angular-three/src/lib/utils/attach.ts

@@ -1,4 +1,5 @@
-import type { NgtAnyRecord, NgtAttachFunction } from '../types';
+import { NgtRxStore } from '../stores/rx-store';
+import type { NgtAnyRecord, NgtAttachFunction, NgtState } from '../types';
 import { applyProps } from './apply-props';
 import { getLocalState } from './instance';
 
@@ -28,3 +29,9 @@ function assignEmpty(obj: NgtAnyRecord, base: string) {
         obj[base] = {};
     }
 }
+
+export function createAttachFunction<TParent = any, TChild = any>(
+    cb: (params: { parent: TParent; child: TChild; store: NgtRxStore<NgtState> }) => (() => void) | void
+): NgtAttachFunction<TChild, TParent> {
+    return (parent, child, store) => cb({ parent, child, store });
+}