#
# Copyright: Ansible Project
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)

# Make coding more python3-ish
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type

from unittest.mock import patch
from ansible_collections.mellanox.onyx.plugins.modules import onyx_bgp
from .utils import set_module_args
from .onyx_module import TestOnyxModule, load_fixture


class TestOnyxBgpModule(TestOnyxModule):

    module = onyx_bgp

    def setUp(self):
        super(TestOnyxBgpModule, self).setUp()
        self.mock_get_config = patch.object(
            onyx_bgp.OnyxBgpModule, "_get_bgp_summary")
        self.get_config = self.mock_get_config.start()

        self.mock_load_config = patch(
            'ansible_collections.mellanox.onyx.plugins.module_utils.network.onyx.onyx.load_config')
        self.load_config = self.mock_load_config.start()

    def tearDown(self):
        super(TestOnyxBgpModule, self).tearDown()
        self.mock_get_config.stop()
        self.mock_load_config.stop()

    def load_fixtures(self, commands=None, transport='cli'):
        config_file = 'onyx_bgp_show.cfg'
        self.get_config.return_value = load_fixture(config_file)
        self.load_config.return_value = None

    def test_bgp_no_change(self):
        neighbor = dict(remote_as=322, neighbor='10.2.3.5', multihop=255)
        set_module_args(dict(as_number=172, router_id='1.2.3.4',
                             neighbors=[neighbor],
                             networks=['172.16.1.0/24'],
                             evpn=True, fast_external_fallover=True,
                             max_paths=31, ecmp_bestpath=True,
                             ))
        self.execute_module(changed=False)

    def test_bgp_remove(self):
        set_module_args(dict(as_number=172, state='absent'))
        commands = ['no router bgp 172']
        self.execute_module(changed=True, commands=commands)

    def test_bgp_with_vrf_changed(self):
        set_module_args(dict(as_number=173, vrf='new_vrf'))
        commands = ['no router bgp 172 vrf default', 'router bgp 173 vrf new_vrf', 'exit']
        self.execute_module(changed=True, commands=commands)

    def test_bgp_change(self):
        neighbor = dict(remote_as=173, neighbor='10.2.3.4')
        set_module_args(dict(as_number=174, router_id='1.2.3.4',
                             neighbors=[neighbor],
                             evpn=False, fast_external_fallover=False,
                             max_paths=32, ecmp_bestpath=False,
                             ))
        commands = ['no router bgp 172 vrf default', 'router bgp 174 vrf default', 'exit',
                    'router bgp 174 vrf default router-id 1.2.3.4 force',
                    'router bgp 174 vrf default neighbor 10.2.3.4 remote-as 173',
                    'no router bgp 174 vrf default neighbor evpn peer-group',
                    'no router bgp 174 vrf default address-family l2vpn-evpn auto-create',
                    'router bgp 174 vrf default no bgp fast-external-fallover',
                    'router bgp 174 vrf default maximum-paths 32',
                    'router bgp 174 vrf default no bestpath as-path multipath-relax force']
        self.execute_module(changed=True, commands=commands)

    def test_bgp_add_neighbor(self):
        neighbors = [dict(remote_as=173, neighbor='10.2.3.4'),
                     dict(remote_as=175, neighbor='10.2.3.5'),
                     dict(remote_as=175, neighbor='10.2.3.6', multihop=250)]
        set_module_args(dict(as_number=172, router_id='1.2.3.4',
                             neighbors=neighbors,
                             networks=['172.16.1.0/24'],
                             evpn=True))
        commands = ['router bgp 172 vrf default neighbor 10.2.3.5 remote-as 175',
                    'router bgp 172 vrf default neighbor 10.2.3.6 remote-as 175',
                    'router bgp 172 vrf default neighbor 10.2.3.6 ebgp-multihop 250',
                    'router bgp 172 vrf default neighbor 10.2.3.6 peer-group evpn',
                    'router bgp 172 vrf default neighbor 10.2.3.4 peer-group evpn']
        self.execute_module(changed=True, commands=commands)

    def test_bgp_del_neighbor(self):
        set_module_args(dict(as_number=172,
                             networks=['172.16.1.0/24'],
                             purge=True))
        commands = ['router bgp 172 vrf default no neighbor 10.2.3.4 remote-as 173',
                    'router bgp 172 vrf default no neighbor 10.2.3.5 remote-as 322']
        self.execute_module(changed=True, commands=commands)

    def test_bgp_add_network(self):
        neighbors = [dict(remote_as=173, neighbor='10.2.3.4')]
        set_module_args(dict(as_number=172, router_id='1.2.3.4',
                             neighbors=neighbors,
                             networks=['172.16.1.0/24', '172.16.2.0/24']))
        commands = ['router bgp 172 vrf default network 172.16.2.0 /24']
        self.execute_module(changed=True, commands=commands)

    def test_bgp_del_network(self):
        neighbors = [dict(remote_as=173, neighbor='10.2.3.4')]
        set_module_args(dict(as_number=172, neighbors=neighbors))
        commands = ['router bgp 172 no network 172.16.1.0 /24']
        self.execute_module(changed=True, commands=commands)
