#!/usr/bin/env python3
"""Codex Stop hook that asks the agent to continue when template validation fails."""

import json
import subprocess
import sys
from pathlib import Path


ROOT = Path(__file__).resolve().parents[2]


def main() -> int:
    result = subprocess.run(
        [sys.executable, "scripts/validate_docs.py"],
        cwd=ROOT,
        capture_output=True,
        text=True,
        encoding="utf-8",
        errors="replace",
    )

    if result.returncode == 0:
        return 0

    details = "\n".join(part for part in [result.stdout.strip(), result.stderr.strip()] if part)
    payload = {
        "decision": "block",
        "reason": (
            "Document harness validation failed. Continue the turn, fix the listed "
            f"issues, and run `python scripts/validate_docs.py` again.\n\n{details}"
        ),
    }
    print(json.dumps(payload, ensure_ascii=False))
    return 0


if __name__ == "__main__":
    sys.exit(main())