from pathlib import Path
import sys
import time

from onapsdk.configuration import settings
from onapsdk.sdc.vf import Vf
from onapsdk.sdc.vsp import Vsp

from ..base import BaseStep, YamlTemplateBaseStep
from .vsp import VspOnboardStep, YamlTemplateVspOnboardStep


class VfOnboardStep(BaseStep):
    """Vf onboard step."""

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

        Substeps:
            - VspOnboardStep.
        """
        super().__init__(cleanup=cleanup)
        self.add_step(VspOnboardStep(cleanup=cleanup))

    @property
    def description(self) -> str:
        """Step description."""
        return "Onboard vf in SDC."

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

    @BaseStep.store_state
    def execute(self):
        """Onboard Vf.

        Use settings values:
         - VSP_NAME,
         - VF_NAME.

        """
        super().execute()
        vsp: Vsp = Vsp(name=settings.VSP_NAME)
        vf: Vf = Vf(name=settings.VF_NAME, vsp=vsp)
        if not vf.created():
            vf.onboard()


class YamlTemplateVfOnboardStep(YamlTemplateBaseStep):
    """Vf onboard using YAML template step."""

    def __init__(self, cleanup=False) -> None:
        """Initialize step.

        Substeps:
            - YamlTemplateVspOnboardStep.
        """
        super().__init__(cleanup=cleanup)
        self.add_step(YamlTemplateVspOnboardStep(cleanup=cleanup))

    @property
    def description(self) -> str:
        """Step description."""
        return "Onboard vf described in YAML file in SDC."

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

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

        Get YAML template from parent using it's name.

        Returns:
            dict: YAML template

        """
        if settings.MODEL_YAML_TEMPLATE:
            return self.model_yaml_template
        else:
            return self.parent.yaml_template[self.parent.service_name]

    @property
    def model_yaml_template(self) -> dict:
        """Step Model YAML template.

        Load from file if it's a root step, get from parent otherwise.

        Returns:
            dict: Step YAML template

        """
        return self.parent.model_yaml_template[self.parent.service_name]

    @YamlTemplateBaseStep.store_state
    def execute(self):
        """Onboard Vfs from YAML template."""
        super().execute()
        if "vnfs" in self.yaml_template:
            for vnf in self.yaml_template["vnfs"]:
                vsp: Vsp = Vsp(name=f"{vnf['vnf_name']}_VSP")
                vf: Vf = Vf(name=vnf['vnf_name'], vsp=vsp)
                if not vf.created():
                    if all([x in vnf for x in ["vnf_artifact_type",
                                               "vnf_artifact_name",
                                               "vnf_artifact_label",
                                               "vnf_artifact_file_path"]]):
                        vf.create()
                        artifact_file_path: Path = Path(vnf["vnf_artifact_file_path"])
                        if not artifact_file_path.exists():
                            artifact_file_path = Path(sys.path[-1], artifact_file_path)
                        vf.add_deployment_artifact(
                            artifact_type=vnf["vnf_artifact_type"],
                            artifact_name=vnf["vnf_artifact_name"],
                            artifact_label=vnf["vnf_artifact_label"],
                            artifact=str(artifact_file_path)
                        )
                    time.sleep(10)
                    vf.onboard()