#!/usr/bin/env python3
"""Generate S8-04 minimal XYZ fixed-tick/UI vertical evidence."""

from __future__ import annotations

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


ROOT = Path(__file__).resolve().parents[1]
RUNNER = ("node", "web/worker/test_minimal_xyz_vertical_s8_04.mjs")
INPUTS = (
    "coverage/sim-case-startup-s8-02.report.json",
    "linuxcnc/configs/sim/axis/minimal_xyz.ini",
    "linuxcnc/configs/sim/axis/minimal_xyz_cmds.hal",
    "linuxcnc/configs/sim/axis/sim.var",
    "linuxcnc/configs/sim/axis/tool.tbl",
    "web/workspace/sim-case-loader.mjs",
    "web/worker/sim-session.mjs",
    "web/worker/test_minimal_xyz_vertical_s8_04.mjs",
    "web/app/app.mjs",
    "web/app/state-panel.mjs",
    "web/app/machine-view.mjs",
)


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


def digest(value: bytes) -> str:
    return hashlib.sha256(value).hexdigest()


def artifact(path: str) -> dict[str, Any]:
    value = ROOT / path
    return {"path": path, "status": "missing"} if not value.is_file() else {"path": path, "bytes": value.stat().st_size, "sha256": digest(value.read_bytes()), "status": "present"}


def generate(output: Path) -> dict[str, Any]:
    result = subprocess.run(RUNNER, cwd=ROOT, stdout=subprocess.PIPE, stderr=subprocess.PIPE, check=False)
    sample = None
    for line in reversed(result.stdout.decode("utf-8", errors="replace").splitlines()):
        if line.lstrip().startswith("{"):
            try:
                sample = json.loads(line)
                break
            except json.JSONDecodeError:
                continue
    passed = result.returncode == 0 and sample and sample.get("status") == "verified" and sample.get("startup_state") == "TASK_READY" and sample.get("recovery", {}).get("parity", {}).get("equal") is True and sample.get("estop", {}).get("recovered") == "READY"
    report: dict[str, Any] = {
        "schema": "minimal-xyz-vertical-s8-04-report.v1",
        "task_id": "S8-04",
        "context_id": "linuxcnc-2.10.0-pre0-wasm-m1-py-c1",
        "status": "verified" if passed else "blocked",
        "implementation_status": "verified" if passed else "blocked",
        "execution": {"command": list(RUNNER), "returncode": result.returncode, "status": "PASSED" if result.returncode == 0 else "FAILED", "stdout_sha256": digest(result.stdout), "stderr_sha256": digest(result.stderr), "sample": sample},
        "checks": {
            "startup_task_ready": {"status": "verified" if passed else "blocked"},
            "home_jog_override": {"status": "verified" if passed else "blocked"},
            "program_pause_resume_abort_mdi": {"status": "verified" if passed else "blocked"},
            "checkpoint_recovery_parity": {"status": "verified" if passed else "blocked", "endpoint_equal": sample.get("recovery", {}).get("parity", {}).get("equal") if sample else None},
            "estop_recover": {"status": "verified" if passed else "blocked", "blocked_code": sample.get("estop", {}).get("blocked_code") if sample else None},
            "frontend_authority_inputs": {"status": "verified" if passed else "blocked", "sources": ["web/app/app.mjs", "web/app/state-panel.mjs", "web/app/machine-view.mjs"]},
        },
        "inputs": [artifact(path) for path in INPUTS],
        "boundaries": ["minimal XYZ/trivkins only", "browser controls consume Worker authoritative state", "real hardware timing remains excluded", "other case families remain in queued/blocked tasks"],
    }
    report["report_sha256"] = hashlib.sha256(canonical({key: value for key, value in report.items() if key != "report_sha256"}).encode()).hexdigest()
    destination = output if output.is_absolute() else ROOT / output
    destination.parent.mkdir(parents=True, exist_ok=True)
    destination.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()
    parser.add_argument("--report", type=Path, default=Path("coverage/minimal-xyz-vertical-s8-04.report.json"))
    args = parser.parse_args()
    report = generate(args.report)
    print(f"minimal_xyz_vertical_s8_04={report['status']} report_sha256={report['report_sha256']}")
    return 0 if report["status"] == "verified" else 1


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