Actions: fix missing orThrow type when input is omitted (#11658)

* fix: orThrow missing when input is omitted

* chore: changeset

.changeset/gold-seas-crash.md

@@ -0,0 +1,5 @@
+---
+'astro': patch
+---
+
+Fixes `orThrow()` type when calling an Action without an `input` validator.

packages/astro/src/actions/runtime/virtual/server.ts

@@ -39,7 +39,7 @@ export type ActionClient<
 				input: TAccept extends 'form' ? FormData : z.input<TInputSchema>,
 			) => Promise<Awaited<TOutput>>;
 		}
-	: (input?: any) => Promise<SafeResult<never, Awaited<TOutput>>> & {
+	: ((input?: any) => Promise<SafeResult<never, Awaited<TOutput>>>) & {
 			orThrow: (input?: any) => Promise<Awaited<TOutput>>;
 		};
 

packages/astro/test/types/action-return-type.ts

@@ -9,18 +9,29 @@ import { z } from '../../zod.mjs';
 
 describe('ActionReturnType', () => {
 	it('Infers action return type', async () => {
-		// eslint-disable-next-line @typescript-eslint/no-unused-vars
-		const action = defineAction({
+		const _action = defineAction({
 			input: z.object({
 				name: z.string(),
 			}),
 			handler: async ({ name }) => {
 				return { name };
 			},
 		});
-		expectTypeOf<ActionReturnType<typeof action>>().toEqualTypeOf<
+		expectTypeOf<ActionReturnType<typeof _action>>().toEqualTypeOf<
 			SafeResult<any, { name: string }>
 		>();
-		expectTypeOf<ActionReturnType<typeof action.orThrow>>().toEqualTypeOf<{ name: string }>();
+		expectTypeOf<ActionReturnType<typeof _action.orThrow>>().toEqualTypeOf<{ name: string }>();
+	});
+
+	it('Infers action return type when input is omitted', async () => {
+		const _action = defineAction({
+			handler: async () => {
+				return { name: 'Ben' };
+			},
+		});
+		expectTypeOf<ActionReturnType<typeof _action>>().toEqualTypeOf<
+			SafeResult<any, { name: string }>
+		>();
+		expectTypeOf<ActionReturnType<typeof _action.orThrow>>().toEqualTypeOf<{ name: string }>();
 	});
 });