# This file is part of cloud-init. See LICENSE file for license information.
import logging
import os
import shutil
import tempfile
from io import BytesIO

import configobj
import pytest

from cloudinit import util
from cloudinit.config import cc_mcollective
from cloudinit.config.schema import (
    SchemaValidationError,
    get_schema,
    validate_cloudconfig_schema,
)
from tests.unittests import helpers as t_help
from tests.unittests.util import get_cloud

LOG = logging.getLogger(__name__)


STOCK_CONFIG = """\
main_collective = mcollective
collectives = mcollective
libdir = /usr/share/mcollective/plugins
logfile = /var/log/mcollective.log
loglevel = info
daemonize = 1

# Plugins
securityprovider = psk
plugin.psk = unset

connector = activemq
plugin.activemq.pool.size = 1
plugin.activemq.pool.1.host = stomp1
plugin.activemq.pool.1.port = 61613
plugin.activemq.pool.1.user = mcollective
plugin.activemq.pool.1.password = marionette

# Facts
factsource = yaml
plugin.yaml = /etc/mcollective/facts.yaml
"""


class TestConfig(t_help.FilesystemMockingTestCase):
    def setUp(self):
        super(TestConfig, self).setUp()
        self.tmp = tempfile.mkdtemp()
        self.addCleanup(shutil.rmtree, self.tmp)
        # "./": make os.path.join behave correctly with abs path as second arg
        self.server_cfg = os.path.join(
            self.tmp, "./" + cc_mcollective.SERVER_CFG
        )
        self.pubcert_file = os.path.join(
            self.tmp, "./" + cc_mcollective.PUBCERT_FILE
        )
        self.pricert_file = os.path.join(
            self.tmp, self.tmp, "./" + cc_mcollective.PRICERT_FILE
        )

    def test_basic_config(self):
        cfg = {
            "mcollective": {
                "conf": {
                    "loglevel": "debug",
                    "connector": "rabbitmq",
                    "logfile": "/var/log/mcollective.log",
                    "ttl": "4294957",
                    "collectives": "mcollective",
                    "main_collective": "mcollective",
                    "securityprovider": "psk",
                    "daemonize": "1",
                    "factsource": "yaml",
                    "direct_addressing": "1",
                    "plugin.psk": "unset",
                    "libdir": "/usr/share/mcollective/plugins",
                    "identity": "1",
                },
            },
        }
        expected = cfg["mcollective"]["conf"]

        self.patchUtils(self.tmp)
        cc_mcollective.configure(cfg["mcollective"]["conf"])
        contents = util.load_file(cc_mcollective.SERVER_CFG, decode=False)
        contents = configobj.ConfigObj(BytesIO(contents))
        self.assertEqual(expected, dict(contents))

    def test_existing_config_is_saved(self):
        cfg = {"loglevel": "warn"}
        util.write_file(self.server_cfg, STOCK_CONFIG)
        cc_mcollective.configure(config=cfg, server_cfg=self.server_cfg)
        self.assertTrue(os.path.exists(self.server_cfg))
        self.assertTrue(os.path.exists(self.server_cfg + ".old"))
        self.assertEqual(
            util.load_file(self.server_cfg + ".old"), STOCK_CONFIG
        )

    def test_existing_updated(self):
        cfg = {"loglevel": "warn"}
        util.write_file(self.server_cfg, STOCK_CONFIG)
        cc_mcollective.configure(config=cfg, server_cfg=self.server_cfg)
        cfgobj = configobj.ConfigObj(self.server_cfg)
        self.assertEqual(cfg["loglevel"], cfgobj["loglevel"])

    def test_certificats_written(self):
        # check public-cert and private-cert keys in config get written
        cfg = {
            "loglevel": "debug",
            "public-cert": "this is my public-certificate",
            "private-cert": "secret private certificate",
        }

        cc_mcollective.configure(
            config=cfg,
            server_cfg=self.server_cfg,
            pricert_file=self.pricert_file,
            pubcert_file=self.pubcert_file,
        )

        found = configobj.ConfigObj(self.server_cfg)

        # make sure these didnt get written in
        self.assertFalse("public-cert" in found)
        self.assertFalse("private-cert" in found)

        # these need updating to the specified paths
        self.assertEqual(found["plugin.ssl_server_public"], self.pubcert_file)
        self.assertEqual(found["plugin.ssl_server_private"], self.pricert_file)

        # and the security provider should be ssl
        self.assertEqual(found["securityprovider"], "ssl")

        self.assertEqual(
            util.load_file(self.pricert_file), cfg["private-cert"]
        )
        self.assertEqual(util.load_file(self.pubcert_file), cfg["public-cert"])


class TestHandler(t_help.TestCase):
    @t_help.mock.patch("cloudinit.config.cc_mcollective.subp")
    @t_help.mock.patch("cloudinit.config.cc_mcollective.util")
    def test_mcollective_install(self, mock_util, mock_subp):
        cc = get_cloud()
        cc.distro = t_help.mock.MagicMock()
        mock_util.load_file.return_value = b""
        mycfg = {"mcollective": {"conf": {"loglevel": "debug"}}}
        cc_mcollective.handle("cc_mcollective", mycfg, cc, [])
        self.assertTrue(cc.distro.install_packages.called)
        install_pkg = cc.distro.install_packages.call_args_list[0][0][0]
        self.assertEqual(install_pkg, ["mcollective"])

        self.assertTrue(mock_subp.subp.called)
        self.assertEqual(
            mock_subp.subp.call_args_list[0][0][0],
            ["service", "mcollective", "restart"],
        )


class TestMcollectiveSchema:
    @pytest.mark.parametrize(
        "config, error_msg",
        [
            # Disallow undocumented keys client 'mcollective' without error
            (
                {"mcollective": {"customkey": True}},
                "mcollective: Additional properties are not allowed",
            ),
            # Allow undocumented keys client keys below 'conf' without error
            ({"mcollective": {"conf": {"customkey": 1}}}, None),
            # Don't allow undocumented keys that don't match expected type
            (
                {"mcollective": {"conf": {"": {"test": None}}}},
                "does not match any of the regexes:",
            ),
            (
                {"mcollective": {"conf": {"public-cert": 1}}},
                "mcollective.conf.public-cert: 1 is not of type 'string'",
            ),
        ],
    )
    @t_help.skipUnlessJsonSchema()
    def test_schema_validation(self, config, error_msg):
        if error_msg is None:
            validate_cloudconfig_schema(config, get_schema(), strict=True)
        else:
            with pytest.raises(SchemaValidationError, match=error_msg):
                validate_cloudconfig_schema(config, get_schema(), strict=True)
