# (c) 2016 Red Hat Inc.
#
# This file is part of Ansible
#
# Ansible is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Ansible is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Ansible.  If not, see <http://www.gnu.org/licenses/>.

# Make coding more python3-ish

from __future__ import absolute_import, division, print_function


__metaclass__ = type

from ansible_collections.cisco.nxos.plugins.modules import nxos_bgp
from ansible_collections.cisco.nxos.tests.unit.compat.mock import patch

from .nxos_module import TestNxosModule, load_fixture, set_module_args


class TestNxosBgpModule(TestNxosModule):
    module = nxos_bgp

    def setUp(self):
        super(TestNxosBgpModule, self).setUp()

        self.mock_load_config = patch(
            "ansible_collections.cisco.nxos.plugins.modules.nxos_bgp.load_config",
        )
        self.load_config = self.mock_load_config.start()

        self.mock_get_config = patch(
            "ansible_collections.cisco.nxos.plugins.modules.nxos_bgp.get_config",
        )
        self.get_config = self.mock_get_config.start()

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

    def load_fixtures(self, commands=None, device=""):
        self.get_config.return_value = load_fixture("nxos_bgp", "config.cfg")
        self.load_config.return_value = []

    def test_nxos_bgp(self):
        set_module_args(dict(asn=65535, router_id="192.0.2.1"))
        result = self.execute_module(changed=True)
        self.assertEqual(result["commands"], ["router bgp 65535", "router-id 192.0.2.1"])

    def test_nxos_bgp_change_nothing(self):
        set_module_args(dict(asn=65535, router_id="192.168.1.1"))
        self.execute_module(changed=False)

    def test_nxos_bgp_wrong_asn(self):
        set_module_args(dict(asn=10, router_id="192.168.1.1"))
        result = self.execute_module(failed=True)
        self.assertEqual(result["msg"], "Another BGP ASN already exists.")

    def test_nxos_bgp_remove(self):
        set_module_args(dict(asn=65535, state="absent"))
        self.execute_module(changed=True, commands=["no router bgp 65535"])

    def test_nxos_bgp_remove_vrf(self):
        set_module_args(dict(asn=65535, vrf="test2", state="absent"))
        self.execute_module(changed=True, commands=["router bgp 65535", "no vrf test2"])

    def test_nxos_bgp_remove_nonexistant_vrf(self):
        set_module_args(dict(asn=65535, vrf="foo", state="absent"))
        self.execute_module(changed=False)

    def test_nxos_bgp_remove_wrong_asn(self):
        set_module_args(dict(asn=10, state="absent"))
        self.execute_module(changed=False)

    def test_nxos_bgp_vrf(self):
        set_module_args(dict(asn=65535, vrf="test", router_id="192.0.2.1"))
        result = self.execute_module(
            changed=True,
            commands=["router bgp 65535", "vrf test", "router-id 192.0.2.1"],
        )
        self.assertEqual(result["warnings"], ["VRF test doesn't exist."])

    def test_nxos_bgp_global_param(self):
        set_module_args(dict(asn=65535, shutdown=True))
        self.execute_module(changed=True, commands=["router bgp 65535", "shutdown"])

    def test_nxos_bgp_global_param_outside_default(self):
        set_module_args(dict(asn=65535, vrf="test", shutdown=True))
        result = self.execute_module(failed=True)
        self.assertEqual(
            result["msg"],
            'Global params can be modified only under "default" VRF.',
        )

    def test_nxos_bgp_default_value(self):
        set_module_args(dict(asn=65535, graceful_restart_timers_restart="default"))
        self.execute_module(
            changed=True,
            commands=["router bgp 65535", "graceful-restart restart-time 120"],
        )


class TestNxosBgp32BitsAS(TestNxosModule):
    module = nxos_bgp

    def setUp(self):
        super(TestNxosBgp32BitsAS, self).setUp()

        self.mock_load_config = patch(
            "ansible_collections.cisco.nxos.plugins.modules.nxos_bgp.load_config",
        )
        self.load_config = self.mock_load_config.start()

        self.mock_get_config = patch(
            "ansible_collections.cisco.nxos.plugins.modules.nxos_bgp.get_config",
        )
        self.get_config = self.mock_get_config.start()

    def tearDown(self):
        super(TestNxosBgp32BitsAS, self).tearDown()
        self.mock_load_config.stop()
        self.mock_get_config.stop()

    def load_fixtures(self, commands=None, device=""):
        self.get_config.return_value = load_fixture("nxos_bgp", "config_32_bits_as.cfg")
        self.load_config.return_value = []

    def test_nxos_bgp_change_nothing(self):
        set_module_args(dict(asn="65535.65535", router_id="192.168.1.1"))
        self.execute_module(changed=False)

    def test_nxos_bgp_wrong_asn(self):
        set_module_args(dict(asn="65535.10", router_id="192.168.1.1"))
        result = self.execute_module(failed=True)
        self.assertEqual(result["msg"], "Another BGP ASN already exists.")

    def test_nxos_bgp_remove(self):
        set_module_args(dict(asn="65535.65535", state="absent"))
        self.execute_module(changed=True, commands=["no router bgp 65535.65535"])
