# (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 unittest.mock import patch

from ansible_collections.cisco.nxos.plugins.modules import nxos_vpc

from .nxos_module import TestNxosModule, load_fixture, set_module_args


class TestNxosVpcModule(TestNxosModule):
    module = nxos_vpc

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

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

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

        self.mock_run_commands = patch(
            "ansible_collections.cisco.nxos.plugins.modules.nxos_vpc.run_commands",
        )
        self.run_commands = self.mock_run_commands.start()

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

    def load_fixtures(self, commands=None, device=""):
        def load_from_file(*args, **kwargs):
            module, commands = args
            output = list()

            for command in commands:
                filename = str(command).split(" | ", 1)[0].replace(" ", "_")
                output.append(load_fixture("nxos_vpc", filename))
            return output

        def vrf_load_from_file(*args, **kwargs):
            """Load vpc output for vrf tests"""
            module, commands = args
            output = list()
            for command in commands:
                filename = "vrf_test_" + str(command).split(" | ", 1)[0].replace(" ", "_")
                output.append(load_fixture("nxos_vpc", filename))
            return output

        self.load_config.return_value = None
        if device == "_vrf_test":
            self.run_commands.side_effect = vrf_load_from_file
        else:
            self.run_commands.side_effect = load_from_file

    def test_nxos_vpc_present(self):
        set_module_args(
            dict(
                domain=100,
                role_priority=32667,
                system_priority=2000,
                pkl_dest="192.168.100.4",
                pkl_src="10.1.100.20",
                peer_gw=True,
                auto_recovery=True,
            ),
        )
        self.execute_module(
            changed=True,
            commands=[
                "vpc domain 100",
                "terminal dont-ask",
                "role priority 32667",
                "system-priority 2000",
                "peer-keepalive destination 192.168.100.4 source 10.1.100.20",
                "peer-gateway",
                "auto-recovery",
            ],
        )

    def test_nxos_vpc_vrf_1(self):
        # No vrf -> vrf 'default'
        set_module_args(
            dict(
                domain=100,
                pkl_dest="192.168.1.1",
                pkl_src="10.1.1.1",
                pkl_vrf="default",
            ),
        )
        self.execute_module(
            changed=True,
            commands=[
                "vpc domain 100",
                "peer-keepalive destination 192.168.1.1 source 10.1.1.1 vrf default",
            ],
        )

    def test_nxos_vpc_vrf_2(self):
        # vrf 'my_vrf'-> vrf 'test-vrf'
        # All pkl commands should be present
        self.get_config.return_value = load_fixture("nxos_vpc", "vrf_test_vpc_config")
        set_module_args(
            dict(
                domain=100,
                pkl_dest="192.168.1.1",
                pkl_src="10.1.1.1",
                pkl_vrf="test-vrf",
            ),
        )
        self.execute_module(
            changed=True,
            device="_vrf_test",
            commands=[
                "vpc domain 100",
                "peer-keepalive destination 192.168.1.1 source 10.1.1.1 vrf test-vrf",
            ],
        )

    def test_nxos_vpc_vrf_3(self):
        # vrf 'my_vrf' -> vrf 'obviously-different-vrf'
        # Existing pkl_src should be retained even though playbook does not specify it
        self.get_config.return_value = load_fixture("nxos_vpc", "vrf_test_vpc_config")
        set_module_args(
            dict(
                domain=100,
                pkl_dest="192.168.1.1",
                pkl_vrf="obviously-different-vrf",
            ),
        )
        self.execute_module(
            changed=True,
            device="_vrf_test",
            commands=[
                "vpc domain 100",
                "peer-keepalive destination 192.168.1.1 source 10.1.1.1 vrf obviously-different-vrf",
            ],
        )

    def test_nxos_vpc_vrf_4(self):
        # vrf 'my_vrf'-> vrf 'management'
        # 'management' is the default value for vrf, it will not nvgen
        self.get_config.return_value = load_fixture("nxos_vpc", "vrf_test_vpc_config")
        set_module_args(dict(domain=100, pkl_dest="192.168.1.1", pkl_vrf="management"))
        self.execute_module(
            changed=True,
            device="_vrf_test",
            commands=[
                "vpc domain 100",
                "peer-keepalive destination 192.168.1.1 source 10.1.1.1 vrf management",
            ],
        )

    def test_nxos_vpc_vrf_5(self):
        # vrf 'my_vrf' -> vrf 'my_vrf' (idempotence)
        self.get_config.return_value = load_fixture("nxos_vpc", "vrf_test_vpc_config")
        set_module_args(
            dict(
                domain=100,
                pkl_dest="192.168.1.1",
                pkl_src="10.1.1.1",
                pkl_vrf="my_vrf",
            ),
        )
        self.execute_module(changed=False, device="_vrf_test")

    def test_nxos_vpc_vrf_6(self):
        # vrf 'my_vrf' -> absent tests
        self.get_config.return_value = load_fixture("nxos_vpc", "vrf_test_vpc_config")
        set_module_args(dict(domain=100, state="absent"))
        self.execute_module(
            changed=True,
            device="_vrf_test",
            commands=["terminal dont-ask", "no vpc domain 100"],
        )

    def test_nxos_vpc_vrf_7(self):
        # dest 192.168.1.1 source 10.1.1.1 vrf my_vrf -> (dest only) (idempotence)
        # pkl_src/pkl_vrf not in playbook but exists on device.
        self.get_config.return_value = load_fixture("nxos_vpc", "vrf_test_vpc_config")
        set_module_args(dict(domain=100, pkl_dest="192.168.1.1"))
        self.execute_module(changed=False, device="_vrf_test")

    def test_nxos_vpc_vrf_8(self):
        # dest 192.168.1.1 source 10.1.1.1 vrf my_vrf -> (optional vrf) (idempotence)
        # pkl_src not in playbook but exists on device.
        self.get_config.return_value = load_fixture("nxos_vpc", "vrf_test_vpc_config")
        set_module_args(dict(domain=100, pkl_dest="192.168.1.1", pkl_vrf="my_vrf"))
        self.execute_module(changed=False, device="_vrf_test")
