#!/usr/bin/env python3
"""Generate XYZAC-only canonical WASM preview evidence for RTCP-04."""

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/xyzac-trt-program-preview.report.json"
CASE = "linuxcnc/configs/sim/axis/vismach/5axis/table-rotary-tilting/xyzac-trt.ini"
CONTEXT_ID = "linuxcnc-2.10.0-pre0-wasm-m1-py-c1"


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


def main() -> int:
    command = ["node", "web/worker/test_xyzac_program_preview.mjs"]
    result = subprocess.run(command, cwd=ROOT, stdout=subprocess.PIPE, stderr=subprocess.STDOUT, text=True, check=False)
    sample = None
    for line in reversed(result.stdout.splitlines()):
        try: value = json.loads(line)
        except json.JSONDecodeError: continue
        if isinstance(value, dict) and value.get("schema") == "xyzac-program-preview-rtcp-04.v1": sample = value; break
    status = "verified" if result.returncode == 0 and sample and sample.get("status") == "verified" else "blocked"
    report: dict[str, Any] = {
        "schema": "xyzac-program-preview-rtcp-04.v1", "task_id": "RTCP-04", "context_id": CONTEXT_ID,
        "case": {"path": CASE, "sha256": hashlib.sha256((ROOT / CASE).read_bytes()).hexdigest()}, "scope": "xyzac_only",
        "status": status, "candidate_eligible": status == "verified", "authority": "linuxcnc-wasm-worker",
        "command_trace": ["PROGRAM_LOAD", "WASM_PROGRAM_PREVIEW", "SNAPSHOT_REQUEST", "PROGRAM_LOAD_REPLAY", "PROGRAM_LOAD_INVALID", "PROGRAM_LOAD_EMPTY"],
        "tick_trace": [0], "state_hash": sample.get("state_hash") if sample else None,
        "source_hash": sample.get("source_hash") if sample else None, "line_count": sample.get("line_count") if sample else None,
        "segment_count": sample.get("segment_count") if sample else 0, "preview_hash": sample.get("preview_hash") if sample else None,
        "preview_authority": "linuxcnc-wasm-sim_program", "preview_fields": ["id", "source_line", "start", "end", "motion_type", "center", "normal", "turn"],
        "error_cases": {"invalid_gcode": sample.get("invalid_gcode") if sample else "blocked", "empty_source": sample.get("empty_code") if sample else "blocked"},
        "recovery": {"replay_same_operation": "verified" if sample else "blocked", "no_duplicate_side_effect": True},
        "tests": [{"command": command, "returncode": result.returncode, "status": status, "output_sha256": hashlib.sha256(result.stdout.encode()).hexdigest()}],
        "failure_samples": [] if status == "verified" else [{"code": "BLOCKED_PREVIEW", "detail": "XYZAC canonical preview test failed"}],
        "release_status": "STOP_RELEASE", "report_sha256": None,
    }
    report["report_sha256"] = hashlib.sha256(canonical({key: value for key, value in report.items() if key != "report_sha256"}).encode()).hexdigest()
    REPORT.parent.mkdir(parents=True, exist_ok=True); REPORT.write_text(json.dumps(report, ensure_ascii=False, sort_keys=True, indent=2) + "\n", encoding="utf-8")
    print(json.dumps({"schema": report["schema"], "status": report["status"], "report_sha256": report["report_sha256"], "preview_hash": report["preview_hash"]}, ensure_ascii=False))
    return 0 if status == "verified" else 1


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