from langchain_text_splitters import RecursiveCharacterTextSplitter


def get_knowledge_splitter():
    """知识库文档分块器"""
    return RecursiveCharacterTextSplitter(
        chunk_size=500,
        chunk_overlap=50,
        separators=["\n\n", "\n", "。", "！", "？", "，", " ", ""],
        length_function=len,
    )


def get_summary_splitter():
    """摘要分块器 (用于对话记忆)"""
    return RecursiveCharacterTextSplitter(
        chunk_size=1000,
        chunk_overlap=100,
        separators=["\n\n", "\n", "。", " ", ""],
        length_function=len,
    )