From 4dc4efc3338126d831cdd86e9a1b1c2b5b713836 Mon Sep 17 00:00:00 2001
From: Tim Neutkens <tim@timneutkens.nl>
Date: Mon, 4 Mar 2024 09:37:42 +0100
Subject: [PATCH] Ensure ESM files import including the extension

Currently it causes a resolving error in e.g. Node.js, Turbopack, etc. that correctly support ESModules.
---
 packages/core/rsc/provider.tsx                      | 2 +-
 packages/core/rsc/rsc-client.ts                     | 2 +-
 packages/core/rsc/{rsc-shared.ts => rsc-shared.mts} | 0
 packages/core/tsup.config.ts                        | 3 ++-
 4 files changed, 4 insertions(+), 3 deletions(-)
 rename packages/core/rsc/{rsc-shared.ts => rsc-shared.mts} (100%)

diff --git a/packages/core/rsc/provider.tsx b/packages/core/rsc/provider.tsx
index 92f68be..66d2cb0 100644
--- a/packages/core/rsc/provider.tsx
+++ b/packages/core/rsc/provider.tsx
@@ -1,7 +1,7 @@
 // This file provides the AI context to all AI Actions via AsyncLocalStorage.
 
 import * as React from 'react';
-import { InternalAIProvider } from './rsc-shared';
+import { InternalAIProvider } from './rsc-shared.mjs';
 import {
   withAIState,
   getAIStateDeltaPromise,
diff --git a/packages/core/rsc/rsc-client.ts b/packages/core/rsc/rsc-client.ts
index f2027b7..a977824 100644
--- a/packages/core/rsc/rsc-client.ts
+++ b/packages/core/rsc/rsc-client.ts
@@ -4,4 +4,4 @@ export {
   useAIState,
   useActions,
   useSyncUIState,
-} from './rsc-shared';
+} from './rsc-shared.mjs';
diff --git a/packages/core/rsc/rsc-shared.ts b/packages/core/rsc/rsc-shared.mts
similarity index 100%
rename from packages/core/rsc/rsc-shared.ts
rename to packages/core/rsc/rsc-shared.mts
diff --git a/packages/core/tsup.config.ts b/packages/core/tsup.config.ts
index 4c86c14..411dfb4 100644
--- a/packages/core/tsup.config.ts
+++ b/packages/core/tsup.config.ts
@@ -72,7 +72,8 @@ export default defineConfig([
   },
   // RSC APIs - shared client
   {
-    entry: ['rsc/rsc-shared.ts'],
+    // Entry is `.mts` as the entrypoints that import it will be ESM so it needs exact imports that includes the `.mjs` extension.
+    entry: ['rsc/rsc-shared.mts'],
     outDir: 'rsc/dist',
     format: ['esm'],
     external: ['react', 'zod'],