from __future__ import annotations

import logging
from typing import Any, Dict

logger = logging.getLogger(__name__)


def simulate_erp_update(extracted_data: Dict[str, Any]) -> Dict[str, Any]:
    """
    Simulate an ERP update.

    In production, replace with a real ERP connector (SAP/Oracle/Dynamics) and robust idempotency keys.
    """

    invoice = (extracted_data or {}).get("invoice", {}) if isinstance(extracted_data, dict) else {}
    vendor = (extracted_data or {}).get("vendor", {}) if isinstance(extracted_data, dict) else {}
    invoice_number = invoice.get("invoice_number")
    vendor_name = vendor.get("name")

    logger.info("Simulating ERP update for invoice=%s vendor=%s", invoice_number, vendor_name)
    return {
        "status": "updated",
        "erp_reference_id": f"ERP-SIM-{invoice_number or 'UNKNOWN'}",
        "message": "ERP update simulated successfully.",
    }