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from __future__ import annotations

import warnings

from azure.mgmt.containerinstance import ContainerInstanceManagementClient
from azure.mgmt.containerinstance.models import ContainerGroup

from airflow.exceptions import AirflowProviderDeprecationWarning
from airflow.providers.microsoft.azure.hooks.base_azure import AzureBaseHook


class AzureContainerInstanceHook(AzureBaseHook):
    """
    A hook to communicate with Azure Container Instances.

    This hook requires a service principal in order to work.
    After creating this service principal
    (Azure Active Directory/App Registrations), you need to fill in the
    client_id (Application ID) as login, the generated password as password,
    and tenantId and subscriptionId in the extra's field as a json.

    :param azure_conn_id: :ref:`Azure connection id<howto/connection:azure>` of
        a service principal which will be used to start the container instance.
    """

    conn_name_attr = "azure_conn_id"
    default_conn_name = "azure_default"
    conn_type = "azure_container_instance"
    hook_name = "Azure Container Instance"

    def __init__(self, azure_conn_id: str = default_conn_name) -> None:
        super().__init__(sdk_client=ContainerInstanceManagementClient, conn_id=azure_conn_id)
        self.connection = self.get_conn()

    def create_or_update(self, resource_group: str, name: str, container_group: ContainerGroup) -> None:
        """
        Create a new container group.

        :param resource_group: the name of the resource group
        :param name: the name of the container group
        :param container_group: the properties of the container group
        """
        self.connection.container_groups.create_or_update(resource_group, name, container_group)

    def get_state_exitcode_details(self, resource_group: str, name: str) -> tuple:
        """
        Get the state and exitcode of a container group.

        :param resource_group: the name of the resource group
        :param name: the name of the container group
        :return: A tuple with the state, exitcode, and details.
            If the exitcode is unknown 0 is returned.
        """
        warnings.warn(
            "get_state_exitcode_details() is deprecated. Related method is get_state()",
            AirflowProviderDeprecationWarning,
            stacklevel=2,
        )
        cg_state = self.get_state(resource_group, name)
        c_state = cg_state.containers[0].instance_view.current_state
        return (c_state.state, c_state.exit_code, c_state.detail_status)

    def get_messages(self, resource_group: str, name: str) -> list:
        """
        Get the messages of a container group.

        :param resource_group: the name of the resource group
        :param name: the name of the container group
        :return: A list of the event messages
        """
        warnings.warn(
            "get_messages() is deprecated. Related method is get_state()",
            AirflowProviderDeprecationWarning,
            stacklevel=2,
        )
        cg_state = self.get_state(resource_group, name)
        instance_view = cg_state.containers[0].instance_view
        return [event.message for event in instance_view.events]

    def get_state(self, resource_group: str, name: str) -> ContainerGroup:
        """
        Get the state of a container group.

        :param resource_group: the name of the resource group
        :param name: the name of the container group
        :return: ContainerGroup
        """
        return self.connection.container_groups.get(resource_group, name, raw=False)

    def get_logs(self, resource_group: str, name: str, tail: int = 1000) -> list:
        """
        Get the tail from logs of a container group.

        :param resource_group: the name of the resource group
        :param name: the name of the container group
        :param tail: the size of the tail
        :return: A list of log messages
        """
        logs = self.connection.container.list_logs(resource_group, name, name, tail=tail)
        return logs.content.splitlines(True)

    def delete(self, resource_group: str, name: str) -> None:
        """
        Delete a container group.

        :param resource_group: the name of the resource group
        :param name: the name of the container group
        """
        self.connection.container_groups.delete(resource_group, name)

    def exists(self, resource_group: str, name: str) -> bool:
        """
        Test if a container group exists.

        :param resource_group: the name of the resource group
        :param name: the name of the container group
        """
        for container in self.connection.container_groups.list_by_resource_group(resource_group):
            if container.name == name:
                return True
        return False

    def test_connection(self):
        """Test a configured Azure Container Instance connection."""
        try:
            # Attempt to list existing container groups under the configured subscription and retrieve the
            # first in the returned iterator. We need to _actually_ try to retrieve an object to properly
            # test the connection.
            next(self.connection.container_groups.list(), None)
        except Exception as e:
            return False, str(e)

        return True, "Successfully connected to Azure Container Instance."
