"""NIOS plugin for integration tests."""
from __future__ import annotations

import os

from ....config import (
    IntegrationConfig,
)

from ....containers import (
    run_support_container,
)

from . import (
    CloudEnvironment,
    CloudEnvironmentConfig,
    CloudProvider,
)


class NiosProvider(CloudProvider):
    """Nios plugin. Sets up NIOS mock server for tests."""

    # Default image to run the nios simulator.
    #
    # The simulator must be pinned to a specific version
    # to guarantee CI passes with the version used.
    #
    # It's source source itself resides at:
    # https://github.com/ansible/nios-test-container
    DOCKER_IMAGE = 'quay.io/ansible/nios-test-container:2.0.0'

    def __init__(self, args: IntegrationConfig) -> None:
        super().__init__(args)

        self.__container_from_env = os.environ.get('ANSIBLE_NIOSSIM_CONTAINER')
        """
        Overrides target container, might be used for development.

        Use ANSIBLE_NIOSSIM_CONTAINER=whatever_you_want if you want
        to use other image. Omit/empty otherwise.
        """

        self.image = self.__container_from_env or self.DOCKER_IMAGE

        self.uses_docker = True

    def setup(self) -> None:
        """Setup cloud resource before delegation and reg cleanup callback."""
        super().setup()

        if self._use_static_config():
            self._setup_static()
        else:
            self._setup_dynamic()

    def _setup_dynamic(self) -> None:
        """Spawn a NIOS simulator within docker container."""
        nios_port = 443

        ports = [
            nios_port,
        ]

        descriptor = run_support_container(
            self.args,
            self.platform,
            self.image,
            'nios-simulator',
            ports,
        )

        if not descriptor:
            return

        self._set_cloud_config('NIOS_HOST', descriptor.name)

    def _setup_static(self) -> None:
        raise NotImplementedError()


class NiosEnvironment(CloudEnvironment):
    """NIOS environment plugin. Updates integration test environment after delegation."""

    def get_environment_config(self) -> CloudEnvironmentConfig:
        """Return environment configuration for use in the test environment after delegation."""
        ansible_vars = dict(
            nios_provider=dict(
                host=self._get_cloud_config('NIOS_HOST'),
                username='admin',
                password='infoblox',
            ),
        )

        return CloudEnvironmentConfig(
            ansible_vars=ansible_vars,
        )
