first commit

app/state.py

@@ -0,0 +1,36 @@
+from __future__ import annotations
+
+import threading
+from datetime import datetime, timezone
+
+
+class RuntimeStats:
+    def __init__(self) -> None:
+        self._lock = threading.Lock()
+        self._data = {
+            "tzsp_datagrams": 0,
+            "tzsp_decode_errors": 0,
+            "tzsp_unsupported": 0,
+            "frames_injected": 0,
+            "inject_errors": 0,
+            "eve_events": 0,
+            "eve_alerts": 0,
+            "eve_parse_errors": 0,
+            "block_attempts": 0,
+            "block_success": 0,
+            "block_errors": 0,
+            "last_packet_at": None,
+            "last_alert_at": None,
+        }
+
+    def inc(self, key: str, amount: int = 1) -> None:
+        with self._lock:
+            self._data[key] = int(self._data.get(key, 0)) + amount
+
+    def stamp(self, key: str) -> None:
+        with self._lock:
+            self._data[key] = datetime.now(timezone.utc).isoformat()
+
+    def snapshot(self) -> dict:
+        with self._lock:
+            return dict(self._data)