"""Wrapper around enterprise_pdf_checker.py — runs in Celery worker."""
import sys
import os
import tempfile
import structlog
from pathlib import Path

# enterprise_pdf_checker.py lives at repo root (parent of backend/)
REPO_ROOT = Path(__file__).parents[3]
if str(REPO_ROOT) not in sys.path:
    sys.path.insert(0, str(REPO_ROOT))

from enterprise_pdf_checker import EnterprisePDFChecker  # noqa: E402

logger = structlog.get_logger()


def run_check(pdf_bytes: bytes, filename: str) -> dict:
    """Run WCAG accessibility check on PDF bytes. Returns result dict."""
    with tempfile.NamedTemporaryFile(suffix=".pdf", delete=False) as tmp:
        tmp.write(pdf_bytes)
        tmp_path = tmp.name

    try:
        checker = EnterprisePDFChecker(tmp_path)
        result = checker.check_all()
        result["filename"] = filename
        logger.info("check_complete", filename=filename, score=result.get("accessibility_score"))
        return result
    except Exception as exc:
        logger.error("check_failed", filename=filename, error=str(exc))
        raise
    finally:
        os.unlink(tmp_path)