update gen script

build.py

@@ -26,7 +26,6 @@ import argparse
 import json
 import logging
 import shutil
-import subprocess
 import sys
 from pathlib import Path
 
@@ -219,6 +218,8 @@ def build_link(output_dir: Path, cfg_name: str):
 
 def generate_models(output_dir: Path, room: str):
     """Generate models using modelgen tool."""
+    from soleprint.station.tools.modelgen import ModelGenerator, load_config
+
     config_path = SPR_ROOT / "cfg" / room / "config.json"
 
     if not config_path.exists():
@@ -228,21 +229,18 @@ def generate_models(output_dir: Path, room: str):
     models_file = output_dir / "models" / "pydantic" / "__init__.py"
     models_file.parent.mkdir(parents=True, exist_ok=True)
 
-    cmd = [
-        sys.executable,
-        "-m",
-        "soleprint.station.tools.modelgen",
-        "from-config",
-        "--config",
-        str(config_path),
-        "--output",
-        str(models_file),
-        "--format",
-        "pydantic",
-    ]
-
-    result = subprocess.run(cmd, cwd=SPR_ROOT)
-    return result.returncode == 0
+    try:
+        config = load_config(config_path)
+        generator = ModelGenerator(
+            config=config,
+            output_path=models_file,
+            output_format="pydantic",
+        )
+        generator.generate()
+        return True
+    except Exception as e:
+        log.error(f"Model generation failed: {e}")
+        return False
 
 
 def copy_cfg(output_dir: Path, room: str):