From 135feeb362ab7d0cecfe579f131f17d7a2e4220b Mon Sep 17 00:00:00 2001
From: Jackson Harper <jacksonh@gmail.com>
Date: Tue, 19 Sep 2023 07:08:18 +0800
Subject: [PATCH] Handle ios out of bounds issue

---
 .../Services/AudioSession/AudioController.swift  | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/apple/OmnivoreKit/Sources/Services/AudioSession/AudioController.swift b/apple/OmnivoreKit/Sources/Services/AudioSession/AudioController.swift
index 9cc80ba6b..888a2c249 100644
--- a/apple/OmnivoreKit/Sources/Services/AudioSession/AudioController.swift
+++ b/apple/OmnivoreKit/Sources/Services/AudioSession/AudioController.swift
@@ -411,13 +411,15 @@
         currentItemOffset = max(currentItemOffset, 0)
 
         let idx = currentAudioIndex // item.speechItem.audioIdx
-        let currentItem = document?.utterances[idx].text ?? ""
-        let currentReadIndex = currentItem.index(currentItem.startIndex, offsetBy: min(currentItemOffset, currentItem.count))
-        let lastItem = String(currentItem[..<currentReadIndex])
-        let lastItemAfter = String(currentItem[currentReadIndex...])
-
-        readText = lastItem
-        unreadText = lastItemAfter
+        if idx < document?.utterances.count ?? 0 {
+          let currentItem = document?.utterances[idx].text ?? ""
+          let currentReadIndex = currentItem.index(currentItem.startIndex, offsetBy: min(currentItemOffset, currentItem.count))
+          let lastItem = String(currentItem[..<currentReadIndex])
+          let lastItemAfter = String(currentItem[currentReadIndex...])
+          
+          readText = lastItem
+          unreadText = lastItemAfter
+        }
       } else {
         readText = ""
       }