#!/usr/bin/env python3
"""Generate deterministic P7-01 Worker protocol/client evidence."""

from __future__ import annotations

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


OUTPUTS = (Path("web/app/worker-client.mjs"), Path("web/app/test_worker_client_runtime.mjs"), Path("web/worker/sim-worker.mjs"), Path("web/worker/contracts.mjs"), Path("web/worker/test_sim_session.mjs"))


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


def sha256(path: Path) -> str:
    return hashlib.sha256(path.read_bytes()).hexdigest()


def run(root: Path, command: list[str]) -> dict[str, Any]:
    result = subprocess.run(command, cwd=root, stdout=subprocess.PIPE, stderr=subprocess.PIPE, check=False)
    return {"status": "verified" if result.returncode == 0 else "blocked", "command": " ".join(command), "returncode": result.returncode, "stdout": result.stdout.decode("utf-8", errors="replace")[-2500:], "stderr": result.stderr.decode("utf-8", errors="replace")[-2000:]}


def generate(root: Path, report_path: Path) -> dict[str, Any]:
    client = run(root, ["node", "web/app/test_worker_client_runtime.mjs"])
    session = run(root, ["node", "web/worker/test_sim_session.mjs"])
    contracts = run(root, ["node", "web/worker/test_contracts.mjs"])
    report: dict[str, Any] = {
        "schema": "worker-protocol-report.v1",
        "task_id": "P7-01",
        "context_id": "linuxcnc-2.10.0-pre0-wasm-m1-py-c1",
        "status": "verified" if all(item["status"] == "verified" for item in (client, session, contracts)) else "blocked",
        "protocol": {"schema_version": 1, "seq": True, "context": True, "operation_id": True, "error_envelope": True, "real_worker": True},
        "client": {"max_pending": 64, "backpressure": "worker_backpressure", "timeout": "worker_timeout", "cancel": "worker_cancelled", "replay": True},
        "tests": {"client": client, "session": session, "contracts": contracts},
        "outputs": [{"path": path.as_posix(), "bytes": (root / path).stat().st_size, "sha256": sha256(root / path)} for path in OUTPUTS],
        "known_boundaries": ["editor/MDI workflow is P7-02", "panels/visualization are P7-03/P7-04", "browser matrix is P8-04"],
    }
    report["report_sha256"] = hashlib.sha256(canonical(report).encode("utf-8")).hexdigest()
    report_path.parent.mkdir(parents=True, exist_ok=True)
    report_path.write_text(json.dumps(report, ensure_ascii=False, sort_keys=True, indent=2) + "\n", encoding="utf-8")
    return report


def main() -> int:
    parser = argparse.ArgumentParser(description=__doc__)
    parser.add_argument("--repo-root", type=Path, default=Path(__file__).resolve().parents[1])
    parser.add_argument("--report", type=Path, default=Path("coverage/worker-protocol.report.json"))
    args = parser.parse_args()
    report = generate(args.repo_root.resolve(), args.repo_root.resolve() / args.report)
    print(f"worker_protocol={report['status']} client={report['tests']['client']['status']} session={report['tests']['session']['status']}")
    return 0 if report["status"] == "verified" else 1


if __name__ == "__main__":
    raise SystemExit(main())