From e885c65b6cb518eb14d697d5b724f2cf070dda11 Mon Sep 17 00:00:00 2001
From: scawful <justin.scofield@outlook.com>
Date: Sat, 10 Aug 2024 21:32:16 -0400
Subject: [PATCH] add yaze_check_version and core::CheckVersion

---
 src/app/core/common.cc | 12 ++++++++++++
 src/app/core/common.h  |  2 ++
 src/yaze.cc            | 13 +++++++++++++
 src/yaze.h             |  2 ++
 4 files changed, 29 insertions(+)

diff --git a/src/app/core/common.cc b/src/app/core/common.cc
index d31d70f0..2cf0dce7 100644
--- a/src/app/core/common.cc
+++ b/src/app/core/common.cc
@@ -13,6 +13,7 @@
 #include <string>
 #include <vector>
 
+#include "absl/status/statusor.h"
 #include "absl/strings/str_format.h"
 #include "imgui/imgui.h"
 
@@ -322,6 +323,17 @@ void ApplyBpsPatch(const std::vector<uint8_t> &source,
   }
 }
 
+absl::StatusOr<std::string> CheckVersion(const char* version) {
+  std::string version_string = version;
+  if (version_string != kYazeVersion) {
+    std::string message = absl::StrFormat(
+        "Yaze version mismatch: expected %s, got %s", kYazeVersion,
+        version_string.c_str());
+    return absl::InvalidArgumentError(message);
+  }
+  return version_string;
+}
+
 }  // namespace core
 }  // namespace app
 }  // namespace yaze
diff --git a/src/app/core/common.h b/src/app/core/common.h
index 4530a66c..e977f360 100644
--- a/src/app/core/common.h
+++ b/src/app/core/common.h
@@ -271,6 +271,8 @@ void ApplyBpsPatch(const std::vector<uint8_t> &source,
                    const std::vector<uint8_t> &patch,
                    std::vector<uint8_t> &target);
 
+absl::StatusOr<std::string> CheckVersion(const char *version);
+
 }  // namespace core
 }  // namespace app
 }  // namespace yaze
diff --git a/src/yaze.cc b/src/yaze.cc
index 5f43380b..336b64c1 100644
--- a/src/yaze.cc
+++ b/src/yaze.cc
@@ -1,8 +1,21 @@
 #include "yaze.h"
 
+#include <cstdio>
+
 #include "app/rom.h"
 #include "app/zelda3/overworld/overworld.h"
 
+void yaze_check_version(const char* version) {
+  auto version_check = yaze::app::core::CheckVersion(version);
+  if (!version_check.ok()) {
+    // Print the error message to the console for a pure C interface.
+    printf("%s\n", version_check.status().message().c_str());
+    // Exit the program if the version check fails.
+    exit(1);
+  }
+  return;
+}
+
 void yaze_init(yaze_flags* flags) {
   if (flags == nullptr) {
     return;
diff --git a/src/yaze.h b/src/yaze.h
index 09201e8e..5be798c0 100644
--- a/src/yaze.h
+++ b/src/yaze.h
@@ -64,6 +64,8 @@ struct yaze_flags {
   z3_rom* rom;
 };
 
+void yaze_check_version(const char* version);
+
 /**
  * @brief Initialize the Yaze library.
  *