commit ffcba03735e7f6ccbf012e0083c7e17e8e4d1f19
Author: Mika <kontakt@donau2space.de>
Date:   Sun Dec 21 11:58:05 2025 +0000

    Add trace_agg/src/trace_agg/core.py

diff --git a/trace_agg/src/trace_agg/core.py b/trace_agg/src/trace_agg/core.py
new file mode 100644
index 0000000..238aad0
--- /dev/null
+++ b/trace_agg/src/trace_agg/core.py
@@ -0,0 +1,53 @@
+import statistics
+from typing import List, Dict, Any
+
+
+def aggregate_traces(trace_data: List[Dict[str, Any]]) -> List[Dict[str, float]]:
+    """Aggregiert Trace-Daten und berechnet Delta-Werte zwischen Ereignissen.
+
+    Args:
+        trace_data: Liste von TraceData-Objekten oder ähnlichen Dicts.
+
+    Returns:
+        Liste von Dictionaries mit berechneten Delta-Ketten.
+    """
+    if not isinstance(trace_data, list):
+        raise ValueError("trace_data muss eine Liste sein.")
+
+    deltas = []
+    for entry in trace_data:
+        if not isinstance(entry, dict):
+            continue
+        entry_time = entry.get("entry_time")
+        first_read_time = entry.get("first_read_time")
+        baseline_time = entry.get("baseline_recalc_time")
+
+        # Validierung – alle notwendigen Felder müssen vorhanden und numerisch sein
+        if not all(isinstance(v, (int, float)) for v in [entry_time, first_read_time, baseline_time] if v is not None):
+            continue
+        if None in (entry_time, first_read_time, baseline_time):
+            continue
+
+        delta_1 = first_read_time - entry_time
+        delta_2 = baseline_time - first_read_time
+        total_delta = baseline_time - entry_time
+
+        deltas.append({
+            "entry_time": entry_time,
+            "first_read_time": first_read_time,
+            "baseline_recalc_time": baseline_time,
+            "delta_entry_to_first_read": delta_1,
+            "delta_first_to_baseline": delta_2,
+            "total_delta": total_delta
+        })
+
+    # Optional: Durchschnittliche Offsets als Übersicht am Ende anfügen
+    if deltas:
+        summary = {
+            "avg_delta_entry_to_first_read": statistics.mean(d["delta_entry_to_first_read"] for d in deltas),
+            "avg_delta_first_to_baseline": statistics.mean(d["delta_first_to_baseline"] for d in deltas),
+            "avg_total_delta": statistics.mean(d["total_delta"] for d in deltas)
+        }
+        deltas.append({"summary": summary})
+
+    return deltas
\ No newline at end of file