class DocumentProcessingError(Exception):
    """文档处理相关错误"""
    pass

class VectorStoreError(Exception):
    """向量存储相关错误"""
    pass

class RetrievalError(Exception):
    """检索相关错误"""
    pass

class GenerationError(Exception):
    """文本生成相关错误"""
    pass

class ConfigurationError(Exception):
    """配置相关错误"""
    pass

class ExportError(Exception):
    """导出相关错误"""
    pass

class SecurityError(Exception):
    """安全相关错误"""
    pass

def handle_exception(exc: Exception) -> dict:
    """统一异常处理"""
    if isinstance(exc, DocumentProcessingError):
        return {
            "error": "文档处理失败",
            "message": str(exc),
            "code": "DOC_PROCESSING_ERROR"
        }
    elif isinstance(exc, VectorStoreError):
        return {
            "error": "向量存储错误",
            "message": str(exc),
            "code": "VECTOR_STORE_ERROR"
        }
    elif isinstance(exc, RetrievalError):
        return {
            "error": "检索失败",
            "message": str(exc),
            "code": "RETRIEVAL_ERROR"
        }
    elif isinstance(exc, GenerationError):
        return {
            "error": "文本生成失败",
            "message": str(exc),
            "code": "GENERATION_ERROR"
        }
    elif isinstance(exc, ConfigurationError):
        return {
            "error": "配置错误",
            "message": str(exc),
            "code": "CONFIGURATION_ERROR"
        }
    elif isinstance(exc, ExportError):
        return {
            "error": "导出失败",
            "message": str(exc),
            "code": "EXPORT_ERROR"
        }
    elif isinstance(exc, SecurityError):
        return {
            "error": "安全错误",
            "message": str(exc),
            "code": "SECURITY_ERROR"
        }
    else:
        return {
            "error": "未知错误",
            "message": str(exc),
            "code": "UNKNOWN_ERROR"
        }