From 0dbbb4ac4f761f74164159f99c1d08de7724ec08 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=8C=82=E4=B9=8B=E9=92=B3?= <claw@hdtime.space>
Date: Fri, 24 Jul 2026 09:10:01 +0000
Subject: [PATCH] fix: generate json in non-binary glTF path

---
 src/foundation/io_gltf.cpp        | 23 ++++++++++++++++-------
 tests/foundation/test_io_gltf.cpp |  1 +
 2 files changed, 17 insertions(+), 7 deletions(-)

diff --git a/src/foundation/io_gltf.cpp b/src/foundation/io_gltf.cpp
index 1a04b4c..f1d20c9 100644
--- a/src/foundation/io_gltf.cpp
+++ b/src/foundation/io_gltf.cpp
@@ -248,18 +248,27 @@ bool write_gltf(const std::string& filepath, const mesh::HalfedgeMesh& mesh,
         return true;
     } else {
         // ── glTF JSON + separate .bin ──
-        std::ofstream file(filepath);
-        if (!file) return false;
-        file << json;
-
-        // Write separate bin
+        // Determine bin filename from output path
         std::string dot = ".";
         size_t dot_pos = filepath.rfind(dot);
         std::string binpath;
-        if (dot_pos != std::string::npos)
+        std::string bin_basename;
+        if (dot_pos != std::string::npos) {
             binpath = filepath.substr(0, dot_pos) + ".bin";
-        else
+            // Extract just the filename
+            size_t slash_pos = binpath.rfind('/');
+            bin_basename = (slash_pos != std::string::npos)
+                ? binpath.substr(slash_pos + 1) : binpath;
+        } else {
             binpath = filepath + ".bin";
+            bin_basename = binpath;
+        }
+
+        std::string json = generate_json(mesh, options, layout, bin_basename);
+
+        std::ofstream file(filepath);
+        if (!file) return false;
+        file << json;
 
         std::ofstream bin(binpath, std::ios::binary);
         if (!bin) return false;
diff --git a/tests/foundation/test_io_gltf.cpp b/tests/foundation/test_io_gltf.cpp
index 0a1c5fd..12ced63 100644
--- a/tests/foundation/test_io_gltf.cpp
+++ b/tests/foundation/test_io_gltf.cpp
@@ -3,6 +3,7 @@
 #include <cstdio>
 #include "vde/foundation/io_gltf.h"
 #include "vde/brep/modeling.h"
+#include "vde/brep/modeling.h"
 
 using namespace vde::foundation;
 using namespace vde::mesh;