From e9e732686644ee342a37386473fc516ac6b8c83e Mon Sep 17 00:00:00 2001
From: Georg Hagen <git.georg.hagen@madvoxel.com>
Date: Fri, 9 May 2025 20:29:11 +0200
Subject: [PATCH] Add FilesWithExtension function

---
 openVulkanoCpp/IO/FsUtils.cpp | 34 ++++++++++++++++++++++++++++++++++
 openVulkanoCpp/IO/FsUtils.hpp |  2 ++
 2 files changed, 36 insertions(+)

diff --git a/openVulkanoCpp/IO/FsUtils.cpp b/openVulkanoCpp/IO/FsUtils.cpp
index 55f6f92..2f8be50 100644
--- a/openVulkanoCpp/IO/FsUtils.cpp
+++ b/openVulkanoCpp/IO/FsUtils.cpp
@@ -6,6 +6,7 @@
 
 #include "FsUtils.hpp"
 #include "Base/Logger.hpp"
+#include "Base/Utils.hpp"
 #include <unordered_map>
 #include <regex>
 
@@ -192,4 +193,37 @@ namespace OpenVulkano
 		
 		return str;
 	}
+
+	std::vector<std::filesystem::path> FsUtils::FilesWithExtension(const std::filesystem::path& dir, std::string ext)
+	{
+		std::vector<std::filesystem::path> files;
+
+		if (!fs::exists(dir) || !fs::is_directory(dir))
+		{
+			Logger::FILESYS->warn("Directory does not exist or is not a directory: {}", dir.string());
+			return files;
+		}
+
+		if (!ext.empty() && ext[0] != '.') ext = "." + ext;
+		Utils::ToLower(ext);
+
+		try
+		{
+			for (const auto& entry : fs::directory_iterator(dir))
+			{
+				std::string fExt = entry.path().extension().string();
+				Utils::ToLower(fExt);
+				if (fs::is_regular_file(entry) && fExt == ext)
+				{
+					files.push_back(entry.path());
+				}
+			}
+		}
+		catch (const fs::filesystem_error& e)
+		{
+			Logger::FILESYS->error("Filesystem error when searching for files: {}", e.what());
+		}
+
+		return files;
+	}
 }
diff --git a/openVulkanoCpp/IO/FsUtils.hpp b/openVulkanoCpp/IO/FsUtils.hpp
index f9a2bf5..74952ce 100644
--- a/openVulkanoCpp/IO/FsUtils.hpp
+++ b/openVulkanoCpp/IO/FsUtils.hpp
@@ -40,5 +40,7 @@ namespace OpenVulkano
 		static FsCount GetDirFileAndDirCount(const std::filesystem::path& dir);
 		
 		static std::string ToValidFileName(std::string filename);
+
+		static std::vector<std::filesystem::path> FilesWithExtension(const std::filesystem::path& dir, std::string ext);
 	};
 }