"""Unified Search plugin contract — public interface for cross-plugin access."""

from __future__ import annotations

from app.plugins.builtins.unified_search.embedding import generate_embedding
from app.plugins.builtins.unified_search.search_engine import hybrid_search


class UnifiedSearchContract:
    """Public contract for the unified_search plugin."""

    generate_embedding = staticmethod(generate_embedding)
    hybrid_search = staticmethod(hybrid_search)


_contract_instance: UnifiedSearchContract | None = None


def get_contract() -> UnifiedSearchContract:
    global _contract_instance
    if _contract_instance is None:
        _contract_instance = UnifiedSearchContract()
    return _contract_instance