from typing import Any, Protocol


class VectorClient(Protocol):
    def search(self, collection_name: str, data: list[list[float]], limit: int) -> Any: ...


class VectorSearchResult:
    def __init__(self, hits: Any, degraded: bool = False) -> None:
        self.hits = hits
        self.degraded = degraded


class VectorMemoryAdapter:
    def __init__(self, client: VectorClient, collection: str) -> None:
        self.client = client
        self.collection = collection

    def search(self, embedding: list[float], limit: int = 10) -> VectorSearchResult:
        try:
            hits = self.client.search(
                collection_name=self.collection,
                data=[embedding],
                limit=max(1, min(limit, 100)),
            )
            return VectorSearchResult(hits)
        except Exception:
            return VectorSearchResult([], degraded=True)