#    Copyright 2015 Mirantis, Inc.
#
#    Licensed under the Apache License, Version 2.0 (the "License"); you may
#    not use this file except in compliance with the License. You may obtain
#    a copy of the License at
#
#         http://www.apache.org/licenses/LICENSE-2.0
#
#    Unless required by applicable law or agreed to in writing, software
#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
#    License for the specific language governing permissions and limitations
#    under the License.

from proboscis import test
from proboscis.asserts import assert_equal
from proboscis.asserts import assert_false
from proboscis.asserts import assert_true

from devops.error import TimeoutError
from devops.helpers.helpers import wait
from fuelweb_test.helpers.checkers import check_cluster_presence
from fuelweb_test.helpers.checkers import check_cobbler_node_exists
from fuelweb_test.helpers.decorators import log_snapshot_after_test
from fuelweb_test.helpers.utils import run_on_remote
from fuelweb_test.settings import DEPLOYMENT_MODE
from fuelweb_test.settings import NEUTRON_SEGMENT_TYPE
from fuelweb_test.settings import OPENSTACK_RELEASE
from fuelweb_test.tests.base_test_case import SetupEnvironment
from fuelweb_test.tests.base_test_case import TestBasic
from fuelweb_test.tests import test_cli_base
from fuelweb_test import logger


@test(groups=["command_line_minimal"])
class CommandLineMinimal(TestBasic):
    """CommandLineMinimal."""  # TODO documentation

    @test(depends_on=[SetupEnvironment.setup_with_custom_manifests],
          groups=["hiera_deploy"])
    @log_snapshot_after_test
    def hiera_deploy(self):
        """Deploy cluster with controller node only

        Scenario:
            1. Start installation of master
            2. Enter "fuelmenu"
            3. Upload custom manifests
            4. Kill "fuelmenu" pid
            5. Deploy hiera manifest

        Duration 20m
        """
        self.env.revert_snapshot("empty_custom_manifests")

        self.env.bootstrap_nodes(
            self.env.d_env.nodes().slaves[:1])

        cluster_id = self.fuel_web.create_cluster(
            name=self.__class__.__name__,
            mode=DEPLOYMENT_MODE
        )
        self.fuel_web.update_nodes(
            cluster_id,
            {'slave-01': ['controller']}
        )
        with self.env.d_env.get_admin_remote() as remote:
            node_id = self.fuel_web.get_nailgun_node_by_devops_node(
                self.env.d_env.nodes().slaves[0])['id']
            remote.execute('fuel node --node {0} --provision --env {1}'.format
                           (node_id, cluster_id))
            self.fuel_web.provisioning_cluster_wait(cluster_id)
            remote.execute('fuel node --node {0} --end hiera --env {1}'.format
                           (node_id, cluster_id))
            try:
                wait(lambda: int(
                    remote.execute(
                        'fuel task | grep deployment | awk \'{print $9}\'')
                    ['stdout'][0].rstrip()) == 100, timeout=120)
            except TimeoutError:
                raise TimeoutError("hiera manifest was not applied")
            role = remote.execute('ssh -q node-{0} "hiera role"'
                                  .format(node_id))['stdout'][0].rstrip()
        assert_equal(role, 'primary-controller', "node with deployed hiera "
                                                 "was not found")


@test(groups=["command_line"])
class CommandLineTest(test_cli_base.CommandLine):
    """CommandLine."""  # TODO documentation

    @test(depends_on=[SetupEnvironment.prepare_slaves_3],
          groups=["cli_selected_nodes_deploy"])
    @log_snapshot_after_test
    def cli_selected_nodes_deploy(self):
        """Create and deploy environment using Fuel CLI

        Scenario:
            1. Revert snapshot "ready_with_3_slaves"
            2. Create a cluster using Fuel CLI
            3. Provision a controller node using Fuel CLI
            4. Provision two compute+cinder nodes using Fuel CLI
            5. Deploy the controller node using Fuel CLI
            6. Deploy the compute+cinder nodes using Fuel CLI
            7. Run OSTF
            8. Make snapshot "cli_selected_nodes_deploy"

        Duration 50m
        """
        self.env.revert_snapshot("ready_with_3_slaves")
        node_ids = [self.fuel_web.get_nailgun_node_by_devops_node(
            self.env.d_env.nodes().slaves[slave_id])['id']
            for slave_id in range(3)]
        release_id = self.fuel_web.get_releases_list_for_os(
            release_name=OPENSTACK_RELEASE)[0]

        with self.env.d_env.get_admin_remote() as remote:

            # Create an environment
            if NEUTRON_SEGMENT_TYPE:
                nst = '--nst={0}'.format(NEUTRON_SEGMENT_TYPE)
            else:
                nst = ''
            cmd = ('fuel env create --name={0} --release={1} '
                   '{2} --json'.format(self.__class__.__name__,
                                       release_id, nst))
            env_result = run_on_remote(remote, cmd, jsonify=True)
            cluster_id = env_result['id']

            # Update network parameters
            self.update_cli_network_configuration(cluster_id, remote)

            # Update SSL configuration
            self.update_ssl_configuration(cluster_id, remote)

            # Add and provision a controller node
            logger.info("Add to the cluster and start provisioning "
                        "a controller node [{0}]".format(node_ids[0]))
            cmd = ('fuel --env-id={0} node set --node {1} --role=controller'
                   .format(cluster_id, node_ids[0]))
            remote.execute(cmd)
            self.update_node_interfaces(node_ids[0])
            cmd = ('fuel --env-id={0} node --provision --node={1} --json'
                   .format(cluster_id, node_ids[0]))
            task = run_on_remote(remote, cmd, jsonify=True)
            self.assert_cli_task_success(task, remote, timeout=30 * 60)

            # Add and provision 2 compute+cinder
            logger.info("Add to the cluster and start provisioning two "
                        "compute+cinder nodes [{0},{1}]".format(node_ids[1],
                                                                node_ids[2]))
            cmd = ('fuel --env-id={0} node set --node {1},{2} '
                   '--role=compute,cinder'.format(cluster_id,
                                                  node_ids[1], node_ids[2]))
            remote.execute(cmd)
            for node_id in (node_ids[1], node_ids[2]):
                self.update_node_interfaces(node_id)
            cmd = ('fuel --env-id={0} node --provision --node={1},{2} --json'
                   .format(cluster_id, node_ids[1], node_ids[2]))
            task = run_on_remote(remote, cmd, jsonify=True)
            self.assert_cli_task_success(task, remote, timeout=10 * 60)

            # Deploy the controller node
            cmd = ('fuel --env-id={0} node --deploy --node {1} --json'
                   .format(cluster_id, node_ids[0]))
            task = run_on_remote(remote, cmd, jsonify=True)
            self.assert_cli_task_success(task, remote, timeout=60 * 60)

            # Deploy the compute nodes
            cmd = ('fuel --env-id={0} node --deploy --node {1},{2} --json'
                   .format(cluster_id, node_ids[1], node_ids[2]))
            task = run_on_remote(remote, cmd, jsonify=True)
            self.assert_cli_task_success(task, remote, timeout=30 * 60)

            self.fuel_web.assert_os_services_ready(cluster_id)
            self.fuel_web.assert_ha_services_ready(cluster_id)
            self.fuel_web.run_ostf(
                cluster_id=cluster_id,
                test_sets=['smoke'])

            self.env.make_snapshot("cli_selected_nodes_deploy", is_make=True)

    @test(depends_on_groups=['cli_selected_nodes_deploy'],
          groups=["cli_node_deletion_check"])
    @log_snapshot_after_test
    def cli_node_deletion_check(self):
        """Destroy node and remove it from Nailgun using Fuel CLI

        Scenario:
            1. Revert snapshot 'cli_selected_nodes_deploy'
            2. Check 'slave-03' is present
            3. Destroy 'slave-03'
            4. Wait until 'slave-03' become offline
            5. Delete offline 'slave-03' from db
            6. Check presence of 'slave-03'

        Duration 30m

        """
        self.env.revert_snapshot("cli_selected_nodes_deploy")

        with self.env.d_env.get_admin_remote() as remote:
            node_id = self.fuel_web.get_nailgun_node_by_devops_node(
                self.env.d_env.nodes().slaves[2])['id']

            assert_true(check_cobbler_node_exists(remote, node_id),
                        "node-{0} is not found".format(node_id))
        self.env.d_env.nodes().slaves[2].destroy()
        try:
            wait(
                lambda: not self.fuel_web.get_nailgun_node_by_devops_node(
                    self.env.d_env.nodes().
                    slaves[2])['online'], timeout=60 * 6)
        except TimeoutError:
            raise
        with self.env.d_env.get_admin_remote() as remote:
            res = remote.execute('fuel node --node-id {0} --delete-from-db'
                                 .format(node_id))
        assert_true(
            res['exit_code'] == 0,
            "Offline node-{0} was not"
            "deleted from database".format(node_id))

        with self.env.d_env.get_admin_remote() as remote:
            try:
                wait(
                    lambda: not remote.execute(
                        "fuel node | awk '{{print $1}}' | grep -w '{0}'".
                        format(node_id))['exit_code'] == 0, timeout=60 * 4)
            except TimeoutError:
                raise TimeoutError(
                    "After deletion node-{0} is found in fuel list".
                    format(node_id))

        with self.env.d_env.get_admin_remote() as remote:
            is_cobbler_node_exists = check_cobbler_node_exists(remote, node_id)

        assert_false(is_cobbler_node_exists,
                     "After deletion node-{0} is found in cobbler list".
                     format(node_id))

        with self.env.d_env.get_admin_remote() as remote:
            cluster_id = ''.join(remote.execute(
                "fuel env | tail -n 1 | awk {'print $1'}")['stdout']).rstrip()

        self.fuel_web.verify_network(cluster_id)

        self.fuel_web.run_ostf(
            cluster_id=cluster_id, test_sets=['ha', 'smoke', 'sanity'],
            should_fail=1)

    @test(depends_on_groups=['cli_selected_nodes_deploy'],
          groups=["cli_cluster_deletion"])
    @log_snapshot_after_test
    def cli_cluster_deletion(self):
        """Delete a cluster using Fuel CLI

        Scenario:
            1. Revert snapshot 'cli_selected_nodes_deploy'
            2. Delete cluster via cli
            3. Check cluster absence in the list

        Duration 25m

        """
        self.env.revert_snapshot("cli_selected_nodes_deploy")

        cluster_id = self.fuel_web.get_last_created_cluster()

        nodes = self.fuel_web.client.list_cluster_nodes(cluster_id)
        online_nodes = [node for node in nodes if node['online']]
        if nodes != online_nodes:
            logger.error(
                'Some slaves do not become online after revert!!'
                ' Expected {0} Actual {1}'.format(nodes, online_nodes))

        self.ssh_manager.execute_on_remote(
            ip=self.ssh_manager.admin_ip,
            cmd='fuel --env {0} env delete'.format(cluster_id)
        )

        try:
            wait(lambda:
                 self.ssh_manager.execute(
                     ip=self.ssh_manager.admin_ip,
                     cmd="fuel env |  awk '{print $1}' |  tail -n 1 | "
                         "grep '^.$'"
                 )['exit_code'] == 1, timeout=60 * 10)
        except TimeoutError:
            raise TimeoutError(
                "cluster {0} was not deleted".format(cluster_id))

        assert_false(
            check_cluster_presence(cluster_id, self.env.postgres_actions),
            "cluster {0} is found".format(cluster_id))