From 43ceb82b4eac7d89a41411b0b40014da1d0469b7 Mon Sep 17 00:00:00 2001
From: enen92 <92enen@gmail.com>
Date: Fri, 22 Mar 2024 16:05:08 +0000
Subject: stacks: make InitializeStackStartPartAndOffset return optional and
 handle errors

---
 xbmc/application/Application.cpp            | 10 ++++++++--
 xbmc/application/ApplicationStackHelper.cpp |  4 ++--
 xbmc/application/ApplicationStackHelper.h   |  4 +++-
 3 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/xbmc/application/Application.cpp b/xbmc/application/Application.cpp
index 3309927de0..e1db281f08 100644
--- a/xbmc/application/Application.cpp
+++ b/xbmc/application/Application.cpp
@@ -2334,10 +2334,16 @@ bool CApplication::PlayStack(CFileItem& item, bool bRestart)
   if (!stackHelper->InitializeStack(item))
     return false;
 
-  int startoffset = stackHelper->InitializeStackStartPartAndOffset(item);
+  std::optional<int> startoffset = stackHelper->InitializeStackStartPartAndOffset(item);
+  if (!startoffset)
+  {
+    CLog::LogF(LOGERROR, "Failed to obtain start offset for stack {}. Aborting playback.",
+               item.GetDynPath());
+    return false;
+  }
 
   CFileItem selectedStackPart = stackHelper->GetCurrentStackPartFileItem();
-  selectedStackPart.SetStartOffset(startoffset);
+  selectedStackPart.SetStartOffset(startoffset.value());
 
   if (item.HasProperty("savedplayerstate"))
   {
diff --git a/xbmc/application/ApplicationStackHelper.cpp b/xbmc/application/ApplicationStackHelper.cpp
index f8070c0d1e..e2c303a0e1 100644
--- a/xbmc/application/ApplicationStackHelper.cpp
+++ b/xbmc/application/ApplicationStackHelper.cpp
@@ -80,7 +80,7 @@ bool CApplicationStackHelper::InitializeStack(const CFileItem & item)
   return true;
 }
 
-int CApplicationStackHelper::InitializeStackStartPartAndOffset(const CFileItem& item)
+std::optional<int> CApplicationStackHelper::InitializeStackStartPartAndOffset(const CFileItem& item)
 {
   CVideoDatabase dbs;
   int64_t startoffset = 0;
@@ -162,7 +162,7 @@ int CApplicationStackHelper::InitializeStackStartPartAndOffset(const CFileItem&
         if (!CDVDFileInfo::GetFileDuration(GetStackPartFileItem(i).GetPath(), duration))
         {
           m_currentStack->Clear();
-          return false;
+          return std::nullopt;
         }
         totalTimeMs += duration;
         // set end time in every part
diff --git a/xbmc/application/ApplicationStackHelper.h b/xbmc/application/ApplicationStackHelper.h
index 6af0044372..4cdbc39e42 100644
--- a/xbmc/application/ApplicationStackHelper.h
+++ b/xbmc/application/ApplicationStackHelper.h
@@ -13,6 +13,7 @@
 
 #include <map>
 #include <memory>
+#include <optional>
 #include <string>
 
 class CFileItem;
@@ -36,8 +37,9 @@ public:
   /*!
   \brief Initialize stack times for each part, start & end, total time, and current part number if resume offset is specified.
   \param item the FileItem object that is the stack
+  \returns the part offset if available, nullopt in case of errors
   */
-  int InitializeStackStartPartAndOffset(const CFileItem& item);
+  std::optional<int> InitializeStackStartPartAndOffset(const CFileItem& item);
 
   /*!
   \brief returns the current part number
-- 
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