From 603efcd2ffff896a1b4f3ed48611801074f466c4 Mon Sep 17 00:00:00 2001
From: Sylvain Rascar <87284168+srascar-bubble@users.noreply.github.com>
Date: Wed, 31 Aug 2022 15:46:58 +0100
Subject: [PATCH] Skip creation of EventManager if module not loaded

This change will affect most likely `expo` users.
Since version 4.x of OneSignal, `EventManager` is always created which leads to the following error
when running the app in Expo go and IOS Simulator.

```
Invariant Violation: `new NativeEventEmitter()` requires a non-null argument.
```
---
 src/index.ts | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/index.ts b/src/index.ts
index 561dc0ad..d57a4aa6 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -30,7 +30,11 @@ import { InAppMessage, InAppMessageAction, InAppMessageLifecycleHandlerObject }
 import { isValidCallback, isNativeModuleLoaded } from './helpers';
 
 const RNOneSignal = NativeModules.OneSignal;
-const eventManager = new EventManager(RNOneSignal);
+let eventManager: EventManager;
+
+if (isNativeModuleLoaded(RNOneSignal)) {
+  eventManager = new EventManager(RNOneSignal);
+}
 
 // 0 = None, 1 = Fatal, 2 = Errors, 3 = Warnings, 4 = Info, 5 = Debug, 6 = Verbose
 export type LogLevel = 0 | 1 | 2 | 3 | 4 | 5 | 6;