From 78111432a8f0c626234a77ed4f87709542470f43 Mon Sep 17 00:00:00 2001
From: Mika <kontakt@donau2space.de>
Date: Sun, 18 Jan 2026 16:37:02 +0000
Subject: [PATCH] Add measurement_logging/src/measurement_logging/cli.py

---
 .../src/measurement_logging/cli.py            | 66 +++++++++++++++++++
 1 file changed, 66 insertions(+)
 create mode 100644 measurement_logging/src/measurement_logging/cli.py

diff --git a/measurement_logging/src/measurement_logging/cli.py b/measurement_logging/src/measurement_logging/cli.py
new file mode 100644
index 0000000..e97647e
--- /dev/null
+++ b/measurement_logging/src/measurement_logging/cli.py
@@ -0,0 +1,66 @@
+import argparse
+import json
+import sys
+from pathlib import Path
+from typing import Any
+
+from measurement_logging.core import log_measurement
+
+
+def parse_args() -> argparse.Namespace:
+    parser = argparse.ArgumentParser(
+        description="CLI-Tool zum Loggen von Nachtfotografie-Messdaten (Temperatur, Feuchte, Kameraeinstellungen)."
+    )
+    parser.add_argument(
+        "--input",
+        required=True,
+        help="Pfad zur JSON-Datei mit den Messwerten."
+    )
+    parser.add_argument(
+        "--output",
+        required=False,
+        default="output/measurements.csv",
+        help="Pfad zur CSV-Datei, in die die Messdaten geschrieben werden (Standard: output/measurements.csv)."
+    )
+    return parser.parse_args()
+
+
+def read_measurement_json(input_path: Path) -> dict[str, Any]:
+    if not input_path.exists():
+        raise FileNotFoundError(f"Eingabedatei nicht gefunden: {input_path}")
+    with input_path.open("r", encoding="utf-8") as f:
+        data = json.load(f)
+    required_fields = [
+        "time",
+        "temperature",
+        "humidity",
+        "iso",
+        "exposure",
+        "rms_noise",
+    ]
+    for field in required_fields:
+        if field not in data:
+            raise ValueError(f"Feld '{field}' fehlt in der Eingabedatei {input_path}.")
+    return data
+
+
+def main() -> None:
+    args = parse_args()
+    try:
+        measurement_data = read_measurement_json(Path(args.input))
+        log_measurement(
+            time=measurement_data["time"],
+            temperature=float(measurement_data["temperature"]),
+            humidity=float(measurement_data["humidity"]),
+            iso=int(measurement_data["iso"]),
+            exposure=float(measurement_data["exposure"]),
+            rms_noise=float(measurement_data["rms_noise"]),
+        )
+        print(f"Messdaten erfolgreich geloggt in {args.output}.")
+    except Exception as exc:
+        print(f"Fehler: {exc}", file=sys.stderr)
+        sys.exit(1)
+
+
+if __name__ == "__main__":
+    main()