import logging

import salt.utils.json
import salt.utils.virtualbox
import tests.integration.cloud.helpers
from tests.support.case import ShellCase
from tests.support.unit import TestCase, skipIf

# Create the cloud instance name to be used throughout the tests
INSTANCE_NAME = tests.integration.cloud.helpers.random_name()
PROVIDER_NAME = "virtualbox"
CONFIG_NAME = PROVIDER_NAME + "-config"
PROFILE_NAME = PROVIDER_NAME + "-test"
DEPLOY_PROFILE_NAME = PROVIDER_NAME + "-deploy-test"
DRIVER_NAME = "virtualbox"
BASE_BOX_NAME = "__temp_test_vm__"
BOOTABLE_BASE_BOX_NAME = "SaltMiniBuntuTest"

# Setup logging
log = logging.getLogger(__name__)


@skipIf(salt.utils.virtualbox.HAS_LIBS is False, "virtualbox has to be installed")
class VirtualboxTestCase(TestCase):
    def setUp(self):
        self.vbox = salt.utils.virtualbox.vb_get_box()

    def assertMachineExists(self, name, msg=None):
        try:
            self.vbox.findMachine(name)
        except Exception as e:  # pylint: disable=broad-except
            if msg:
                self.fail(msg)
            else:
                self.fail(e.message)

    def assertMachineDoesNotExist(self, name):
        self.assertRaisesRegex(
            Exception,
            "Could not find a registered machine",
            self.vbox.findMachine,
            name,
        )


@skipIf(
    salt.utils.virtualbox.HAS_LIBS is False,
    "salt-cloud requires virtualbox to be installed",
)
class VirtualboxCloudTestCase(ShellCase):
    def run_cloud(self, arg_str, catch_stderr=False, timeout=None, config_dir=None):
        """
        Execute salt-cloud with json output and try to interpret it

        @return:
        @rtype: dict
        """
        arg_str = "--out=json {}".format(arg_str)
        log.debug("running salt-cloud with %s", arg_str)
        output = self.run_script(
            "salt-cloud", arg_str, catch_stderr, timeout=timeout, config_dir=config_dir
        )

        # Sometimes tuples are returned???
        if isinstance(output, tuple) and len(output) == 2:
            output = output[0]

        # Attempt to clean json output before fix of https://github.com/saltstack/salt/issues/27629
        valid_initial_chars = ["{", "[", '"']
        for line in output[:]:
            if len(line) == 0 or (line[0] not in valid_initial_chars):
                output.pop(0)
            else:
                break
        if len(output) == 0:
            return dict()
        else:
            return salt.utils.json.loads("".join(output))

    def run_cloud_function(self, function, kw_function_args=None, **kwargs):
        """
        A helper to call `salt-cloud -f function provider`

        @param function:
        @type function:
        @param kw_function_args: Keyword arguments for the argument string in the commandline
        @type dict:
        @param kwargs: For the `run_cloud` function
        @type kwargs:
        @return:
        @rtype: dict
        """
        args = []
        # Args converted in the form of key1='value1' ... keyN='valueN'
        if kw_function_args:
            args = [
                "{}='{}'".format(key, value) for key, value in kw_function_args.items()
            ]

        output = self.run_cloud(
            "-f {} {} {}".format(function, CONFIG_NAME, " ".join(args)), **kwargs
        )
        return output.get(CONFIG_NAME, {}).get(PROVIDER_NAME, {})

    def run_cloud_action(self, action, instance_name, **kwargs):
        """
        A helper to call `salt-cloud -a action instance_name`

        @param action:
        @type action: str
        @param instance_name:
        @type instance_name: str
        @return:
        @rtype: dict
        """

        output = self.run_cloud(
            "-a {} {} --assume-yes".format(action, instance_name), **kwargs
        )
        return output.get(CONFIG_NAME, {}).get(PROVIDER_NAME, {})
