# coding:utf-8

import grpc
from proto import service_pb2, service_pb2_grpc


def a2s_execute(a2s_ip: str, topic: str, timeout: int, bytes_data: bytes):
    """
    a2e服务调用
    :param a2s_ip: 192.168.3.240:9090  #  服务地址
    :param topic: t2v   主体
    :param timeout: 60  超时时间
    :param bytes_data: 请求字段
    :return: bytes or None
    """
    try:
        if not (a2s_ip and topic):
            raise IOError("参数错误：a2s_ip和topic不能为空！")
        with grpc.insecure_channel(a2s_ip) as channel:
            # 客户端实例
            stub = service_pb2_grpc.CallerStub(channel)
            print(topic,timeout,bytes_data)
            # 调用服务端方法
            response = stub.Call(service_pb2.Request(topic=topic, timeout=timeout, data=bytes_data))
            print("==>",response)
            # 获取结果
            data = response.data
            return data
    except Exception as e:
        print(e)
        return None