From 12d202fc08f2decf621afa957740f4a4c79b95ac Mon Sep 17 00:00:00 2001
From: Mika <kontakt@donau2space.de>
Date: Sun, 22 Feb 2026 03:07:03 +0000
Subject: [PATCH] Add logger_script/src/logger_script/cli.py

---
 logger_script/src/logger_script/cli.py | 40 ++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 logger_script/src/logger_script/cli.py

diff --git a/logger_script/src/logger_script/cli.py b/logger_script/src/logger_script/cli.py
new file mode 100644
index 0000000..e97894a
--- /dev/null
+++ b/logger_script/src/logger_script/cli.py
@@ -0,0 +1,40 @@
+import argparse
+import sys
+from pathlib import Path
+from logger_script import core
+
+def main() -> None:
+    """CLI-Einstiegspunkt für den Fluoreszenz-Datenlogger."""
+    parser = argparse.ArgumentParser(description="Fluoreszenz-Datenlogger für USB-Spektrometer")
+    parser.add_argument(
+        "--duration",
+        type=int,
+        required=True,
+        help="Dauer der Datenerfassung in Sekunden (positiver Integer)"
+    )
+
+    args = parser.parse_args()
+
+    # Eingabevalidierung
+    if args.duration <= 0:
+        print("Fehler: --duration muss eine positive Ganzzahl sein.", file=sys.stderr)
+        sys.exit(1)
+
+    try:
+        logs = core.start_logging(args.duration)
+        core.flush_buffer()
+        output_path = Path("output/logs.json")
+        output_path.parent.mkdir(parents=True, exist_ok=True)
+        import json
+        with output_path.open("w", encoding="utf-8") as f:
+            json.dump(logs, f, ensure_ascii=False, indent=2)
+        print(f"Datenerfassung abgeschlossen. Ergebnisse gespeichert unter: {output_path}")
+    except KeyboardInterrupt:
+        print("Messung abgebrochen per Tastatur.", file=sys.stderr)
+        sys.exit(1)
+    except Exception as e:
+        print(f"Fehler während der Messung: {e}", file=sys.stderr)
+        sys.exit(1)
+
+if __name__ == "__main__":
+    main()
\ No newline at end of file