import ipaddress
import pytest
import re
import responses

from gso.services import ipam


@responses.activate
def test_new_service_networks(data_config_filename):

    responses.add(
        method=responses.POST,
        url=re.compile(r'.*/wapi.*/network.*'),
        json={
            '_ref': 'network/ZG5zLm5ldHdvcmskMTAuMjU1LjI1NS4yMC8zMi8w:10.255.255.20/32/default',   # noqa: E501
            'network': '10.255.255.20/32'
        }
    )

    responses.add(
        method=responses.POST,
        url=re.compile(r'.*/wapi.*/ipv6network.*'),
        json={
            '_ref': 'ipv6network/ZG5zLm5ldHdvcmskZGVhZDpiZWVmOjoxOC8xMjgvMA:dead%3Abeef%3A%3A18/128/default',   # noqa: E501
            'network': 'dead:beef::18/128'
        }
    )

    service_networks = ipam.new_service_networks(service_type='TRUNK')
    assert service_networks == ipam.ServiceNetworks(
        v4=ipaddress.ip_network('10.255.255.20/32'),
        v6=ipaddress.ip_network('dead:beef::18/128')
    )

    # should fail because this service type has networks instead of containers
    with pytest.raises(AssertionError):
        service_networks = ipam.new_service_networks(service_type='LO')
        assert service_networks is None


@responses.activate
def test_new_service_host(data_config_filename):

    responses.add(
        method=responses.POST,
        url=re.compile(r'.*/wapi.*/record:host$'),
        json='record:host/ZG5zLmhvc3QkLm5vbl9ETlNfaG9zdF9yb290LjAuMTY4MzcwNTU4MzY3MC5nc28udGVzdA:test.lo/%20'   # noqa: E501
    )

    responses.add(
        method=responses.POST,
        url=re.compile(r'.*/wapi.*/record:a$'),
        json='record:a/ZG5zLmJpbmRfYSQuX2RlZmF1bHQuZ3NvLHRlc3QsMTAuMjU1LjI1NS44:test.lo/default'   # noqa: E501
    )

    responses.add(
        method=responses.POST,
        url=re.compile(r'.*/wapi.*/record:aaaa$'),
        json='record:aaaa/ZG5zLmJpbmRfYSQuX2RlZmF1bHQuZ3NvLHRlc3QsMTAuMjU1LjI1NS44:test.lo/default'   # noqa: E501
    )

    responses.add(
        method=responses.GET,
        url=re.compile(r'.*/wapi.*/network.*10.255.255.*'),
        json=[
            {
                "_ref": "network/ZG5zLm5ldHdvcmskMTAuMjU1LjI1NS4yMC8zMi8w:10.255.255.20/32/default",   # noqa: E501
                "network": "10.255.255.20/32",
                "network_view": "default"
            }
        ]
    )

    responses.add(
        method=responses.GET,
        url=re.compile(r'.*/wapi.*/network.*10.255.254.*'),
        json=[
            {
                "_ref": "network/ZG5zLm5Gd0VHQkRQUjMzLjMwNzIuMzE1LzAyLzI:10.255.254.20/32/default",   # noqa: E501
                "network": "10.255.254.20/32",
                "network_view": "default"
            }
        ]
    )

    responses.add(
        method=responses.GET,
        url=re.compile(r'.*/wapi.*/ipv6network.*dead.*beef.*'),
        json=[
            {
                "_ref": "ipv6network/ZG5zLm5ldHdvcmskZGVhZDpiZWVmOjoxOC8xMjgvMA:dead%3Abeef%3A%3A18/128/default",   # noqa: E501
                "network": "dead:beef::18/128",
                "network_view": "default"
            }
        ]
    )

    responses.add(
        method=responses.GET,
        url=re.compile(r'.*/wapi.*/ipv6network.*beef.*dead.*'),
        json=[]
    )

    responses.add(
        method=responses.POST,
        url=re.compile(r'.*/wapi.*/network/.*10.255.255.*?_function=next_available_ip&num=1$'),   # noqa: E501
        json={'ips': ['10.255.255.20']}
    )

    responses.add(
        method=responses.POST,
        url=re.compile(r'.*/wapi.*/network/.*10.255.254.*?_function=next_available_ip&num=1$'),   # noqa: E501
        body="Cannot find 1 available IP address(es) in this network",
        status=400
    )

    responses.add(
        method=responses.POST,
        url=re.compile(r'.*/wapi.*/ipv6network/.*?_function=next_available_ip&num=1$'),   # noqa: E501
        json={'ips': ['dead:beef::18']}
    )

    responses.add(
        method=responses.POST,
        url=re.compile(r'.*/wapi.*/network.*_return_fields.*'),
        json={
            '_ref': 'network/ZG5zLm5ldHdvcmskMTAuMjU1LjI1NS4yMC8zMi8w:10.255.255.20/32/default',   # noqa: E501
            'network': '10.255.255.20/32'
        }
    )

    responses.add(
        method=responses.POST,
        url=re.compile(r'.*/wapi.*/ipv6network.*_return_fields.*'),
        json={
            '_ref': 'ipv6network/ZG5zLm5ldHdvcmskZGVhZDpiZWVmOjoxOC8xMjgvMA:dead%3Abeef%3A%3A18/128/default',   # noqa: E501
            'network': 'dead:beef::18/128'
        }
    )

    # test host creation by IP addresses
    service_hosts = ipam.new_service_host(
        hostname='test',
        service_type='TRUNK',
        host_addresses=ipam.HostAddresses(
            v4=ipaddress.ip_address('10.255.255.20'),
            v6=ipaddress.ip_address('dead:beef::18')
        )
    )
    assert service_hosts == ipam.HostAddresses(
        v4=ipaddress.ip_address('10.255.255.20'),
        v6=ipaddress.ip_address('dead:beef::18')
    )

    # test host creation by network addresses
    service_hosts = ipam.new_service_host(
        hostname='test',
        service_type='TRUNK',
        service_networks=ipam.ServiceNetworks(
            v4=ipaddress.ip_network('10.255.255.20/32'),
            v6=ipaddress.ip_network('dead:beef::18/128')
        )
    )
    assert service_hosts == ipam.HostAddresses(
        v4=ipaddress.ip_address('10.255.255.20'),
        v6=ipaddress.ip_address('dead:beef::18')
    )

    # test host creation by just service_type when service cfg uses networks
    service_hosts = ipam.new_service_host(
        hostname='test',
        service_type='LO'
    )
    assert service_hosts == ipam.HostAddresses(
        v4=ipaddress.ip_address('10.255.255.20'),
        v6=ipaddress.ip_address('dead:beef::18')
    )

    # test host creation by just service_type when service cfg uses containers
    service_hosts = ipam.new_service_host(
        hostname='test',
        service_type='TRUNK'
    )
    assert service_hosts == ipam.HostAddresses(
        v4=ipaddress.ip_address('10.255.255.20'),
        v6=ipaddress.ip_address('dead:beef::18')
    )

    # test host creation that should return a no available IP error
    with pytest.raises(AssertionError):
        service_hosts = ipam.new_service_host(
            hostname='test',
            service_type='TRUNK',
            service_networks=ipam.ServiceNetworks(
                v4=ipaddress.ip_network('10.255.254.20/32'),
                v6=ipaddress.ip_network('dead:beef::18/128')
            )
        )
        assert service_hosts is None

    # test host creation that should return a network not exist error
    with pytest.raises(AssertionError):
        service_hosts = ipam.new_service_host(
            hostname='test',
            service_type='TRUNK',
            service_networks=ipam.ServiceNetworks(
                v4=ipaddress.ip_network('10.255.255.20/32'),
                v6=ipaddress.ip_network('beef:dead::18/128')
            )
        )
        assert service_hosts is None


@responses.activate
def test_delete_service_network(data_config_filename):

    responses.add(
        method=responses.GET,
        url=re.compile(r'.*/wapi.*/network.*10.255.255.0.*'),
        json=[
            {
                "_ref": "network/ZG5zLm5ldHdvcmskMTAuMjU1LjI1NS4yMC8zMi8w:10.255.255.0/26/default",   # noqa: E501
                "network": "10.255.255.0/26",
                "network_view": "default"
            }
        ]
    )

    responses.add(
        method=responses.GET,
        url=re.compile(r'.*/wapi.*/network.*10.255.255.20.*'),
        json=[
            {
                "_ref": "network/ZG5zLm5Gd0VHQkRQUjMzLjMwNzIuMzE1LzAyLzI:100.255.255.20/32/default",   # noqa: E501
                "network": "100.255.255.20/32",
                "network_view": "default"
            }
        ]
    )

    responses.add(
        method=responses.GET,
        url=re.compile(r'.*/wapi.*/ipv6network.*dead.*beef.*'),
        json=[
            {
                "_ref": "ipv6network/ZG5zLm5ldHdvcmskZGVhZDpiZWVmOjoxOC8xMjgvMA:dead%3Abeef%3A%3A18/128/default",   # noqa: E501
                "network": "dead:beef::18/128",
                "network_view": "default"
            }
        ]
    )

    responses.add(
        method=responses.GET,
        url=re.compile(r'.*/wapi.*/ipv6network.*beef.*dead.*'),
        json=[
            {
                "_ref": "ipv6network/ZG5zLm5ldHdvcmskZGVhZDpiZWVmOjoxOC8xMjgvMA:beef%3Adead%3A%3A18/128/default",   # noqa: E501
                "network": "beef:dead::18/128",
                "network_view": "default"
            }
        ]
    )

    responses.add(
        method=responses.DELETE,
        url=re.compile(r'.*/wapi.*/network.*10.255.255.0.*'),
        body="network/ZG5zLm5ldHdvcmskMTAuMjU1LjI1NS4yMC8zMi8w:10.255.255.0/26/default"   # noqa: E501
    )

    responses.add(
        method=responses.DELETE,
        url=re.compile(r'.*/wapi.*/network.*100.255.255.*'),
        body="network/ZG5zLm5Gd0VHQkRQUjMzLjMwNzIuMzE1LzAyLzI:100.255.255.20/32/default"   # noqa: E501
    )

    responses.add(
        method=responses.DELETE,
        url=re.compile(r'.*/wapi.*/ipv6network.*dead.*beef.*'),
        body="ipv6network/ZG5zLm5ldHdvcmskZGVhZDpiZWVmOjoxOC8xMjgvMA:dead%3Abeef%3A%3A18/128/default"   # noqa: E501
    )

    responses.add(
        method=responses.DELETE,
        url=re.compile(r'.*/wapi.*/ipv6network.*beef.*dead.*'),
        body="ipv6network/ZG5zLm5ldHdvcmskZGVhZDpiZWVmOjoxOC8xMjgvMA:beef%3Adead%3A%3A18/128/default"   # noqa: E501
    )

    service_network = ipam.delete_service_network(
        network=ipaddress.ip_network('10.255.255.0/26'), service_type='LO'
    )
    assert service_network == ipam.V4ServiceNetwork(
        v4=ipaddress.ip_network('10.255.255.0/26')
    )

    with pytest.raises(AssertionError):
        service_network = ipam.delete_service_network(
            network=ipaddress.ip_network('10.255.255.20/32'),
            service_type='LO'
        )
        assert service_network is None

    service_network = ipam.delete_service_network(
        network=ipaddress.ip_network('dead:beef::18/128'),
        service_type='TRUNK'
    )
    assert service_network == ipam.V6ServiceNetwork(
        v6=ipaddress.ip_network('dead:beef::18/128')
    )

    with pytest.raises(AssertionError):
        service_network = ipam.delete_service_network(
            network=ipaddress.ip_network('beef:dead::18/128'),
            service_type='TRUNK'
        )
        assert service_network is None


@responses.activate
def test_delete_service_host(data_config_filename):

    responses.add(
        method=responses.GET,
        url=re.compile(r'.*/wapi.*record:host.*'),
        json=[
            {
                '_ref': 'record:host/ZG5zLmhvc3QkLl9kZWZhdWx0Lmdzby5oYV9sbw:ha_lo.gso/default',   # noqa: E501
                'ipv4addrs': [
                    {
                        '_ref': 'record:host_ipv4addr/ZG5zLmhvc3RfYWRkcmVzcyQuX2RlZmF1bHQuZ3NvLmhhX2xvLjEwLjI1NS4yNTUuMS40.255.255.1/ha_lo.gso/default',   # noqa: E501
                        'configure_for_dhcp': False,
                        'host': 'ha_lo.gso', 'ipv4addr': '10.255.255.1'
                    }
                ],
                'ipv6addrs': [
                    {
                        '_ref': 'record:host_ipv6addr/ZG5zLmhvc3RfYWRkcmVzcyQuX2RlZmF1bHQuZvLmhhX2xvLmRlYWQ6YmVlZjo6MS4:dead%3Abeef%3A%3A1/ha_lo.gso/default',   # noqa: E501
                        'configure_for_dhcp': False,
                        'host': 'ha_lo.gso', 'ipv6addr': 'dead:beef::1'
                    }
                ],
                'name': 'ha_lo.gso', 'view': 'default'
            }
        ]
    )

    responses.add(
        method=responses.GET,
        url=re.compile(r'.*/wapi.*record:cname.*'),
        json=[
            {
                '_ref': 'record:cname/ZG5zLmJpbmRfY25hbWUkLl9kZWZhdWx0Lmdzby5oYS5hbGlhczE:alias1.ha.gso/default',   # noqa: E501
                'canonical': 'hA_LO.lo', 'name': 'alias1.ha.lo',
                'view': 'default'
            },
            {
                '_ref': 'record:cname/5zLmJpbmRfY25hbWUkLl9kZWZhdWx0Lmdzby5oYS5hbGlhczI:alias2.ha.gso/default',   # noqa: E501
                'canonical': 'hA_LO.lo', 'name': 'alias2.ha.lo',
                'view': 'default'
            }
        ]
    )

    responses.add(
        method=responses.DELETE,
        url=re.compile(r'.*/wapi.*record:host.*'),
        body='record:host/ZG5zLmhvc3QkLl9kZWZhdWx0Lmdzby5oYl9sbw:hb_lo.gso/default'   # noqa: E501
    )

    responses.add(
        method=responses.DELETE,
        url=re.compile(r'.*/wapi.*record:cname.*'),
        body='record:cname/ZG5zLmJpbmRfY25hbWUkLl9kZWZhdWx0Lmdzby5oYi5hbGlhczE:alias1.hb.gso/default'   # noqa: E501
    )

    input_host_addresses = ipam.HostAddresses(
        v4=ipaddress.ip_address('10.255.255.1'),
        v6=ipaddress.ip_address('dead:beef::1')
    )
    host_addresses = ipam.delete_service_host(
        hostname='ha_lo',
        host_addresses=input_host_addresses,
        cname_aliases=['alias1.ha', 'alias2.ha'],
        service_type='LO'
    )
    assert host_addresses == ipam.HostAddresses(
        v4=ipaddress.ip_address('10.255.255.1'),
        v6=ipaddress.ip_address('dead:beef::1')
    )

    # Fail because missing CNAME
    with pytest.raises(AssertionError):
        host_addresses = ipam.delete_service_host(
            hostname='ha_lo',
            host_addresses=input_host_addresses,
            cname_aliases=['alias1.ha'],
            service_type='LO'
        )
        assert host_addresses is None

    # Fail because non-matching CNAME
    with pytest.raises(AssertionError):
        host_addresses = ipam.delete_service_host(
            hostname='ha_lo',
            host_addresses=input_host_addresses,
            cname_aliases=['alias1.ha', 'alias2.ha', 'alias3.ha'],
            service_type='LO'
        )
        assert host_addresses is None