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"""Instantiate basic vm using SO macro flow."""
import logging
import time
from yaml import load, SafeLoader

from onapsdk.configuration import settings
from onapsdk.exceptions import SDKException
from xtesting.core import testcase

from onaptests.steps.base import YamlTemplateBaseStep
from onaptests.steps.onboard.cds import CbaPublishStep
from onaptests.utils.exceptions import OnapTestException
from onaptests.steps.instantiate.service_macro import YamlTemplateServiceMacroInstantiateStep


class BasicVmMacroStep(YamlTemplateBaseStep):

    def __init__(self, cleanup=False):
        """Initialize step.

        Substeps:
            - CbaPublishStep
            - YamlTemplateServiceMacroInstantiateStep.
        """
        super().__init__(cleanup=cleanup)
        self._yaml_template: dict = None
        self.add_step(CbaPublishStep(
            cleanup=cleanup
        ))
        self.add_step(YamlTemplateServiceMacroInstantiateStep(
            cleanup=cleanup
        ))

    @property
    def description(self) -> str:
        """Step description.

        Used for reports

        Returns:
            str: Step description

        """
        return "Basic VM macro scenario step"

    @property
    def component(self) -> str:
        """Component name.

        Name of component which step is related with.
            Most is the name of ONAP component.

        Returns:
            str: Component name

        """
        return "PythonSDK-tests"

    @property
    def yaml_template(self) -> dict:
        """YAML template abstract property.

        Every YAML template step need to implement that property.

        Returns:
            dict: YAML template

        """
        if not self._yaml_template:
            with open(settings.SERVICE_YAML_TEMPLATE, "r") as yaml_template:
                self._yaml_template: dict = load(yaml_template, SafeLoader)
        return self._yaml_template

    @property
    def model_yaml_template(self) -> dict:
        return {}

    @property
    def service_name(self) -> dict:
        """Service name.

        Get from YAML template.

        Returns:
            str: Service name

        """
        return next(iter(self.yaml_template.keys()))

    @property
    def service_instance_name(self) -> str:
        """Service instance name.

        Returns:
            str: Service instance name

        """
        return settings.SERVICE_INSTANCE_NAME


class BasicVmMacro(testcase.TestCase):
    """Instantiate a basic vm macro."""

    __logger = logging.getLogger()

    def __init__(self, **kwargs):
        """Init Basic Macro use case."""
        if "case_name" not in kwargs:
            kwargs["case_name"] = 'basic_vm_macro'
        super().__init__(**kwargs)
        self.__logger.debug("Basic VM macro init started")
        self.test = BasicVmMacroStep(cleanup=settings.CLEANUP_FLAG)

    def run(self):
        """Run basic vm macro test."""
        self.start_time = time.time()
        try:
            self.test.execute()
            self.test.cleanup()
            self.result = 100
        except OnapTestException as exc:
            self.result = 0
            self.__logger.error(exc.error_message)
        except SDKException:
            self.result = 0
            self.__logger.error("SDK Exception")
        finally:
            self.stop_time = time.time()

    def clean(self):
        """Generate report."""
        self.test.reports_collection.generate_report()