87 lines
2.7 KiB
Python
87 lines
2.7 KiB
Python
 
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"""Summarize confirmed fall events for review, latency records and
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false-alarm counting during acceptance sessions.
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Reads the JSONL written by ``alerts.EventArtifactWriter``. Use it after a test
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session: run some normal activity (walking, sitting, bending, picking up) and
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check that no events were recorded, or read back the latency of real falls.
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python -m v1.report # scans artifacts/events
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python -m v1.report artifacts/events # a source directory
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python -m v1.report .../20260721/events.jsonl
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"""
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import json
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import sys
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from pathlib import Path
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from typing import Dict, List
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def load_events(jsonl_path: Path) -> List[Dict]:
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path = Path(jsonl_path)
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if not path.is_file():
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return []
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events = []
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for line in path.read_text(encoding="utf-8").splitlines():
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line = line.strip()
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if line:
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events.append(json.loads(line))
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return events
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def collect_jsonl(root: Path) -> List[Path]:
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"""Return every events.jsonl under a source/day directory, or the file itself."""
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path = Path(root)
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if path.is_file():
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return [path]
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return sorted(path.glob("**/events.jsonl"))
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def summarize(events: List[Dict]) -> Dict:
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latencies = [float(e.get("latency_seconds", 0.0)) for e in events]
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within = [lat for lat in latencies if 1.0 <= lat <= 3.0]
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return {
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"count": len(events),
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"latencies": latencies,
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"latency_in_target": len(within),
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}
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def format_report(jsonl_path: Path, events: List[Dict]) -> str:
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summary = summarize(events)
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lines = [
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"{0}".format(jsonl_path),
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" events: {0} (latency in 1-3s: {1}/{0})".format(
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summary["count"], summary["latency_in_target"]
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),
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]
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for event in events:
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lines.append(
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" {0} track={1} utc={2} latency={3:.2f}s shot={4}".format(
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event.get("event_id", "?"),
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event.get("track_id", "?"),
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event.get("confirmed_at_utc", "?"),
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float(event.get("latency_seconds", 0.0)),
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event.get("screenshot", "?"),
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)
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)
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if not events:
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lines.append(" (no confirmed events — a clean pass for negative activity)")
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return "\n".join(lines)
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def main(argv=None) -> int:
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argv = list(sys.argv[1:] if argv is None else argv)
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root = Path(argv[0]) if argv else Path("artifacts/events")
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files = collect_jsonl(root)
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if not files:
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print("no events.jsonl found under {0}".format(root))
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return 0
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for jsonl_path in files:
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print(format_report(jsonl_path, load_events(jsonl_path)))
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return 0
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if __name__ == "__main__":
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raise SystemExit(main())
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