From 4719e52c6e3996c8f913b484b0c79f67c97d782e Mon Sep 17 00:00:00 2001
From: Tyler Wilding <xtvaser@gmail.com>
Date: Thu, 23 Dec 2021 22:00:22 -0500
Subject: [PATCH] fs-api: extend host API to allow retrieval of a resource file
 path

---
 pcsx2/Host.h          |  3 +++
 pcsx2/gui/AppHost.cpp | 11 +++++++++++
 2 files changed, 14 insertions(+)

diff --git a/pcsx2/Host.h b/pcsx2/Host.h
index b980ac2980..7a0b2d1820 100644
--- a/pcsx2/Host.h
+++ b/pcsx2/Host.h
@@ -41,4 +41,7 @@ namespace Host
 
 	/// Reads a resource file file from the resources directory as a string.
 	std::optional<std::string> ReadResourceFileToString(const char* filename);
+
+	/// Returns the full filepath to a resource file, if it exists.
+	std::optional<std::string> getResourceFilePath(const char* filename);
 } // namespace Host
diff --git a/pcsx2/gui/AppHost.cpp b/pcsx2/gui/AppHost.cpp
index fb6e65eca7..efb82302c6 100644
--- a/pcsx2/gui/AppHost.cpp
+++ b/pcsx2/gui/AppHost.cpp
@@ -66,3 +66,14 @@ std::optional<std::string> Host::ReadResourceFileToString(const char* filename)
 
 	return ret;
 }
+
+std::optional<std::string> Host::getResourceFilePath(const char* filename) 
+{
+	const std::string full_filename(Path::CombineStdString(EmuFolders::Resources, filename));
+	if (!FileSystem::FileExists(full_filename.c_str()))
+	{
+		Console.Error("Resource file does not exist '%s'", filename);
+		return std::nullopt;
+	}
+	return full_filename;
+}