init commit

python_app/orchestration/config_writer.py

@@ -0,0 +1,42 @@
+"""Helpers for writing runtime configs and preprocessing bundles."""
+
+from __future__ import annotations
+
+import json
+from pathlib import Path
+
+from python_app.models.run_config_model import RunConfigModel, parse_combos_from_text
+from python_app.storage.npz_store import NpzStore
+
+
+class ConfigWriter:
+    """Write runtime artifacts consumed by C++ processes."""
+
+    def __init__(self, runtime_dir: Path) -> None:
+        """Create writer rooted at runtime directory."""
+        self._runtime_dir = runtime_dir
+        self._runtime_dir.mkdir(parents=True, exist_ok=True)
+
+    def prepare_bundles(
+        self,
+        store: NpzStore,
+        radar_key: str,
+        calibration_set: str,
+        reference_set: str,
+    ) -> tuple[Path, Path]:
+        """Export calibration/reference sets into binary bundles for preprocessor."""
+        calibration_bundle = self._runtime_dir / "calibration_bundle.bin"
+        reference_bundle = self._runtime_dir / "reference_bundle.bin"
+
+        store.export_set_bundle("calibration", radar_key, calibration_set, calibration_bundle)
+        store.export_set_bundle("reference", radar_key, reference_set, reference_bundle)
+        return calibration_bundle, reference_bundle
+
+    def write(self, config: RunConfigModel, output_path: Path) -> Path:
+        """Write run configuration JSON file."""
+        output_path.parent.mkdir(parents=True, exist_ok=True)
+        output_path.write_text(json.dumps(config.to_dict(), indent=2), encoding="utf-8")
+        return output_path
+
+
+__all__ = ["ConfigWriter", "parse_combos_from_text"]