#!/usr/bin/env python

# --------------------------------------------------------------------------------------------
# Copyright (c) Microsoft Corporation. All rights reserved.
# Licensed under the MIT License. See License.txt in the project root for license information.
# --------------------------------------------------------------------------------------------

"""
Example to show receiving batch messages from a Service Bus Subscription under specific Topic.
"""

# pylint: disable=C0111

import os
from azure.servicebus import ServiceBusClient


CONNECTION_STR = os.environ['SERVICE_BUS_CONNECTION_STR']
TOPIC_NAME = os.environ["SERVICE_BUS_TOPIC_NAME"]
SUBSCRIPTION_NAME = os.environ["SERVICE_BUS_SUBSCRIPTION_NAME"]

servicebus_client = ServiceBusClient.from_connection_string(conn_str=CONNECTION_STR)
with servicebus_client:
    receiver = servicebus_client.get_subscription_receiver(
        topic_name=TOPIC_NAME,
        subscription_name=SUBSCRIPTION_NAME
    )
    with receiver:
        received_msgs = receiver.receive_messages(max_message_count=10, max_wait_time=5)
        for msg in received_msgs:
            print(str(msg))
            receiver.complete_message(msg)

print("Receive is done.")