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# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
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#
#     http://www.apache.org/licenses/LICENSE-2.0
#
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from libcloud.compute.types import Provider as NodeProvider
from libcloud.compute.providers import get_driver as get_node_driver
from libcloud.loadbalancer.base import Member, Algorithm
from libcloud.loadbalancer.types import Provider
from libcloud.loadbalancer.providers import get_driver

SLBDriver = get_driver(Provider.ALIYUN_SLB)
ECSDriver = get_node_driver(NodeProvider.ALIYUN_ECS)

region = "cn-hangzhou"

your_access_key_id = ""
your_access_key_secret = ""
slb = SLBDriver(your_access_key_id, your_access_key_secret, region=region)
ecs = ECSDriver(your_access_key_id, your_access_key_secret, region=region)

protos = slb.list_protocols()
print("Found %d protocols: %s" % (len(protos), protos))

balancers = slb.list_balancers()
print("Found %d load balancers" % len(balancers))
print(balancers)

if len(balancers) > 0:
    b1 = balancers[0]
    print("Delete %s" % b1)
    slb.destroy_balancer(b1)
else:
    extra = {
        "AddressType": "internet",
        "Bandwidth": 1,
        "StickySession": "off",
        "HealthCheck": "off",
    }
    nodes = ecs.list_nodes()
    print("Found %d nodes" % len(nodes))
    members = [
        Member(node.id, node.public_ips[0], 80, extra={"Weight": 50 * (i + 1)})
        for i, node in enumerate(nodes)
    ]
    new_b = slb.create_balancer(
        "test-balancer", 80, "http", Algorithm.WEIGHTED_ROUND_ROBIN, members, **extra
    )
    print("Created balancer %s" % new_b)