from __future__ import annotations

import json
import platform
import time
from pathlib import Path

ROOT = Path(__file__).resolve().parent

from telemetry import (
    RobustPCADetector,
    causal_window_features,
    generate_telemetry_run,
)


def main() -> None:
    artifact = json.loads(
        (ROOT / "model.json").read_text()
    )
    detector = RobustPCADetector.from_dict(artifact)
    features, _ = causal_window_features(generate_telemetry_run(999).values)
    for _ in range(100):
        detector.score_features(features)

    repetitions = 2000
    started = time.perf_counter_ns()
    for _ in range(repetitions):
        detector.score_features(features)
    elapsed_ns = time.perf_counter_ns() - started
    windows = len(features) * repetitions
    print(
        json.dumps(
            {
                "runtime": "NumPy CPU",
                "python": platform.python_version(),
                "machine": platform.machine(),
                "processor": platform.processor() or "not reported",
                "windows": windows,
                "elapsed_seconds": round(elapsed_ns / 1e9, 6),
                "microseconds_per_window": round(elapsed_ns / windows / 1e3, 6),
                "warning": "Local microbenchmark; rerun on the intended edge target.",
            },
            indent=2,
        )
    )


if __name__ == "__main__":
    main()