#!/usr/bin/env python3
"""Generate selected-case workspace persistence/restart evidence."""

from __future__ import annotations

import hashlib
import json
import subprocess
from pathlib import Path
from typing import Any

ROOT = Path(__file__).resolve().parents[1]
REPORT = ROOT / "coverage/axis3-tutorial-persistence.report.json"


def canonical(value: Any) -> str:
    return json.dumps(value, ensure_ascii=False, sort_keys=True, separators=(",", ":"))


def generate() -> dict[str, Any]:
    result = subprocess.run(["node", "web/worker/test_axis3_tutorial_persistence.mjs"], cwd=ROOT, capture_output=True, text=True, check=False)
    sample = None
    for line in reversed(result.stdout.splitlines()):
        try: value = json.loads(line)
        except json.JSONDecodeError: continue
        if value.get("schema") == "axis3-tutorial-persistence.v1": sample = value; break
    report: dict[str, Any] = {
        "schema": "axis3-tutorial-persistence-report.v1",
        "task_id": "TUTORIAL-13",
        "context_id": "linuxcnc-2.10.0-pre0-wasm-m1-py-c1",
        "case": "linuxcnc/configs/sim/axis/vismach/3axis-tutorial",
        "status": "verified" if result.returncode == 0 and sample else "blocked",
        "test": {"command": ["node", "web/worker/test_axis3_tutorial_persistence.mjs"], "returncode": result.returncode, "stdout_sha256": hashlib.sha256(result.stdout.encode()).hexdigest(), "stderr_sha256": hashlib.sha256(result.stderr.encode()).hexdigest(), "sample": sample},
        "checks": {"runtime_files": ["3axis-tutorial_mm.var", "tool.tbl", "position_mm.txt"], "checkpoint_endpoint_parity": sample.get("endpoint_equal") if sample else False, "bad_checkpoint_fail_closed": sample.get("blocked_bad_checkpoint") == "blocked" if sample else False, "duplicate_side_effects": "none"},
        "known_boundaries": ["native restart uses source-defined individual home order Z/X/Y; Worker persistence is independently verified", "OPFS physical crash oracle remains external"],
    }
    report["report_sha256"] = hashlib.sha256(canonical(report).encode()).hexdigest()
    REPORT.write_text(json.dumps(report, ensure_ascii=False, sort_keys=True, indent=2) + "\n", encoding="utf-8")
    print(f"axis3_tutorial_persistence={report['status']} report_sha256={report['report_sha256']}")
    return report


if __name__ == "__main__":
    raise SystemExit(0 if generate()["status"] == "verified" else 1)