import os
import logging

try:
    import chromadb
    from chromadb.config import Settings
    CHROMADB_AVAILABLE = True
except ImportError:
    CHROMADB_AVAILABLE = False

logger = logging.getLogger("vector_memory")
logger.setLevel(logging.INFO)

def add_to_vector_memory(user_id, text, metadata=None):
    if not CHROMADB_AVAILABLE:
        logger.warning("ChromaDB not available. Skipping vector memory storage.")
        return
    # Placeholder: Implement vector memory logic here.
    logger.info(f"Storing vector memory for user: {user_id}")

def get_relevant_context(user_id, query, top_k=3):
    if not CHROMADB_AVAILABLE:
        logger.warning("ChromaDB not available. Returning empty relevant context.")
        return ""
    # Placeholder: Implement search for relevant context.
    return ""

def clear_vector_memory(user_id):
    if not CHROMADB_AVAILABLE:
        logger.warning("ChromaDB not available. Skipping vector memory clear.")