"""Coverage-specific RAG utility functions."""

from typing import Any

import structlog

from libs.schemas.coverage.evaluation import Citation

logger = structlog.get_logger()


async def rag_search_for_citations(
    rag_client: Any, query: str, filters: dict[str, Any] | None = None
) -> list["Citation"]:
    """Search for citations using RAG with PII-free filtering"""

    try:
        # Ensure PII-free filter is always applied
        search_filters = filters or {}
        search_filters["pii_free"] = True

        # This would integrate with the actual RAG retrieval system
        # For now, return a placeholder implementation
        logger.debug(
            "RAG citation search called",
            query=query,
            filters=search_filters,
            rag_client_available=rag_client is not None,
        )

        # Placeholder citations - in production this would call the RAG system
        citations = [
            Citation(
                doc_id=f"RAG-{query.replace(' ', '-')[:20]}",
                locator="Retrieved via RAG search",
                url=f"https://guidance.example.com/search?q={query}",
            )
        ]

        return citations

    except (ConnectionError, TimeoutError) as e:
        logger.error("RAG citation search failed", query=query, error=str(e))
        return []