From ce28799db388796ff50a0b55da26eaafab5fd260 Mon Sep 17 00:00:00 2001
From: defnotken <itsdefnotken@gmail.com>
Date: Mon, 5 Jan 2026 20:46:14 -0600
Subject: [PATCH] More checks for animations and bones.

---
 LightlessSync/Services/XivDataAnalyzer.cs | 51 ++++++++++++++++++++---
 1 file changed, 46 insertions(+), 5 deletions(-)

diff --git a/LightlessSync/Services/XivDataAnalyzer.cs b/LightlessSync/Services/XivDataAnalyzer.cs
index cd3b20c..65d9346 100644
--- a/LightlessSync/Services/XivDataAnalyzer.cs
+++ b/LightlessSync/Services/XivDataAnalyzer.cs
@@ -202,7 +202,7 @@ public sealed partial class XivDataAnalyzer
 
             var tempSets = new Dictionary<string, HashSet<ushort>>(StringComparer.OrdinalIgnoreCase);
 
-            var tempFileName = $"lightless_pap_{Guid.NewGuid():N}_{hash.Substring(0, Math.Min(8, hash.Length))}.hkx";
+            var tempFileName = $"lightless_pap_{Guid.NewGuid():N}_{hash[..Math.Min(8, hash.Length)]}.hkx";
             var tempHavokDataPath = Path.Combine(Path.GetTempPath(), tempFileName);
             IntPtr tempHavokDataPathAnsi = IntPtr.Zero;
 
@@ -215,7 +215,16 @@ public sealed partial class XivDataAnalyzer
                     return null;
                 }
 
-                File.WriteAllBytes(tempHavokDataPath, havokData);
+                // Write the file with explicit error handling
+                try
+                {
+                    File.WriteAllBytes(tempHavokDataPath, havokData);
+                }
+                catch (Exception writeEx)
+                {
+                    _logger.LogError(writeEx, "Failed to write temporary Havok file to {path}", tempHavokDataPath);
+                    return null;
+                }
 
                 if (!File.Exists(tempHavokDataPath))
                 {
@@ -228,7 +237,26 @@ public sealed partial class XivDataAnalyzer
                 {
                     _logger.LogWarning("Written temp file size mismatch: expected {expected}, got {actual}",
                         havokData.Length, writtenFileInfo.Length);
-                    File.Delete(tempHavokDataPath);
+                    try { File.Delete(tempHavokDataPath); } catch { }
+                    return null;
+                }
+
+                Thread.Sleep(10); // stabilize file system
+
+                try
+                {
+                    using var testStream = File.OpenRead(tempHavokDataPath);
+                    if (testStream.Length != havokData.Length)
+                    {
+                        _logger.LogWarning("File verification failed: length mismatch after write");
+                        try { File.Delete(tempHavokDataPath); } catch { }
+                        return null;
+                    }
+                }
+                catch (Exception readEx)
+                {
+                    _logger.LogError(readEx, "Cannot read back temporary file at {path}", tempHavokDataPath);
+                    try { File.Delete(tempHavokDataPath); } catch { }
                     return null;
                 }
 
@@ -245,18 +273,31 @@ public sealed partial class XivDataAnalyzer
                 hkResource* resource = null;
                 try
                 {
+                    if (tempHavokDataPathAnsi == IntPtr.Zero)
+                    {
+                        _logger.LogError("Failed to allocate ANSI string for path");
+                        return null;
+                    }
+
                     resource = hkSerializeUtil.LoadFromFile((byte*)tempHavokDataPathAnsi, null, loadoptions);
                 }
                 catch (SEHException ex)
                 {
-                    _logger.LogError(ex, "SEH exception loading Havok file from {path} (hash={hash}). Native error code: 0x{code:X}",
+                    _logger.LogError(ex, "SEH exception loading Havok file from {path} (hash={hash}). Native error code: 0x{code:X}. This may indicate a corrupted PAP file or incompatible Havok format.",
                         tempHavokDataPath, hash, ex.ErrorCode);
                     return null;
                 }
+                catch (Exception ex)
+                {
+                    _logger.LogError(ex, "Unexpected exception loading Havok file from {path} (hash={hash})",
+                        tempHavokDataPath, hash);
+                    return null;
+                }
 
                 if (resource == null)
                 {
-                    _logger.LogDebug("Havok resource was null after loading from {path} (hash={hash})", tempHavokDataPath, hash);
+                    _logger.LogDebug("Havok resource was null after loading from {path} (hash={hash}). File may be corrupted or in an unsupported format.",
+                        tempHavokDataPath, hash);
                     return null;
                 }