#!/usr/bin/env python3
"""Generate deterministic P7-05 recovery/offline/error UX 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/recovery-panel.mjs"), Path("web/app/project-workflow.mjs"), Path("web/app/app.mjs"), Path("web/app/test_recovery_ux.mjs"), Path("web/workspace/migration.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 generate(root: Path, report_path: Path) -> dict[str, Any]:
    ux = subprocess.run(["node", "web/app/test_recovery_ux.mjs"], cwd=root, stdout=subprocess.PIPE, stderr=subprocess.PIPE, check=False)
    workflow = subprocess.run(["node", "web/app/test_frontend_m3.mjs"], cwd=root, stdout=subprocess.PIPE, stderr=subprocess.PIPE, check=False)
    report: dict[str, Any] = {
        "schema": "recovery-ux-report.v1",
        "task_id": "P7-05",
        "context_id": "linuxcnc-2.10.0-pre0-wasm-m1-py-c1",
        "status": "verified" if ux.returncode == 0 and workflow.returncode == 0 else "blocked",
        "states": ["idle", "validating", "replaying", "recovered", "aborted", "blocked", "network_required"],
        "actions": {"blocked": ["retry", "abort"], "network_required": ["retry_online"], "recovered": ["continue"], "half_commit": "explicit message"},
        "diagnostics": ["reason", "state_hash", "applied", "half_commits", "missing", "corrupted", "permission", "quota"],
        "tests": {"ux": {"status": "verified" if ux.returncode == 0 else "blocked", "stdout": ux.stdout.decode("utf-8", errors="replace")[-1200:]}, "workflow": {"status": "verified" if workflow.returncode == 0 else "blocked", "stdout": workflow.stdout.decode("utf-8", errors="replace")[-1200:]}},
        "outputs": [{"path": path.as_posix(), "bytes": (root / path).stat().st_size, "sha256": sha256(root / path)} for path in OUTPUTS],
        "known_boundaries": ["browser multi-engine fault matrix is P8-04", "release gate remains STOP_RELEASE"],
    }
    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/recovery-ux.report.json"))
    args = parser.parse_args()
    report = generate(args.repo_root.resolve(), args.repo_root.resolve() / args.report)
    print(f"recovery_ux={report['status']} states={len(report['states'])}")
    return 0 if report["status"] == "verified" else 1


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