feat: export Source (#212)

* feat: export Source

Re NEO-54

* fix: source can return undefined

Author: cristinecula

src/autocomplete/use-autocomplete.ts

@@ -8,10 +8,10 @@ import { useKeys } from './use-keys';
 import { search, normalize, notify, useNotify, EMPTY } from './util';
 import { usePromise } from '@neovici/cosmoz-utils/hooks/use-promise';
 
-type Source<I> = (opts: {
+export type Source<I> = (opts: {
 	query?: string;
 	active?: boolean;
-}) => PromiseLike<I[]>;
+}) => PromiseLike<I[]> | undefined;
 
 interface Base<I> {
 	value?: I | I[];
@@ -188,7 +188,7 @@ export const useAutocomplete = <I>({
 			[meta],
 		),
 		// whenever there is a query, override defaultIndex to 0, so the first result gets selected
-		defaultIndex: (query !== undefined && query?.length > 0) ? 0 : defaultIndex,
+		defaultIndex: query !== undefined && query?.length > 0 ? 0 : defaultIndex,
 	};
 };
 

src/autocomplete/util.ts

@@ -38,7 +38,7 @@ export const search = <I>(
 	return matches.sort((a, b) => a.index - b.index).map(({ item }) => item);
 };
 
-export const normalize = <I>(source: I[] | false | null) => {
+export const normalize = <I>(source: I[] | false | null | undefined) => {
 	if (source === false || source == null) return [];
 	return source;
 };

src/index.ts

@@ -1 +1,2 @@
 import './autocomplete/';
+export type { Source } from './autocomplete/use-autocomplete';