# -*- coding: utf-8 -*-
#
# Copyright 2018 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Accesses the google.cloud.asset.v1beta1 AssetService API."""

import pkg_resources
import warnings

from google.oauth2 import service_account
import google.api_core.gapic_v1.client_info
import google.api_core.gapic_v1.config
import google.api_core.gapic_v1.method
import google.api_core.grpc_helpers
import google.api_core.operation
import google.api_core.operations_v1
import google.api_core.path_template
import grpc

from google.cloud.asset_v1beta1.gapic import asset_service_client_config
from google.cloud.asset_v1beta1.gapic import enums
from google.cloud.asset_v1beta1.gapic.transports import asset_service_grpc_transport
from google.cloud.asset_v1beta1.proto import asset_service_pb2
from google.cloud.asset_v1beta1.proto import asset_service_pb2_grpc
from google.cloud.asset_v1beta1.proto import assets_pb2
from google.longrunning import operations_pb2
from google.protobuf import timestamp_pb2

_GAPIC_LIBRARY_VERSION = pkg_resources.get_distribution(
    'google-cloud-asset', ).version


class AssetServiceClient(object):
    """Asset service definition."""

    SERVICE_ADDRESS = 'cloudasset.googleapis.com:443'
    """The default address of the service."""

    # The name of the interface for this client. This is the key used to
    # find the method configuration in the client_config dictionary.
    _INTERFACE_NAME = 'google.cloud.asset.v1beta1.AssetService'

    @classmethod
    def from_service_account_file(cls, filename, *args, **kwargs):
        """Creates an instance of this client using the provided credentials
        file.

        Args:
            filename (str): The path to the service account private key json
                file.
            args: Additional arguments to pass to the constructor.
            kwargs: Additional arguments to pass to the constructor.

        Returns:
            AssetServiceClient: The constructed client.
        """
        credentials = service_account.Credentials.from_service_account_file(
            filename)
        kwargs['credentials'] = credentials
        return cls(*args, **kwargs)

    from_service_account_json = from_service_account_file

    @classmethod
    def project_path(cls, project):
        """Return a fully-qualified project string."""
        return google.api_core.path_template.expand(
            'projects/{project}',
            project=project,
        )

    def __init__(self,
                 transport=None,
                 channel=None,
                 credentials=None,
                 client_config=asset_service_client_config.config,
                 client_info=None):
        """Constructor.

        Args:
            transport (Union[~.AssetServiceGrpcTransport,
                    Callable[[~.Credentials, type], ~.AssetServiceGrpcTransport]): A transport
                instance, responsible for actually making the API calls.
                The default transport uses the gRPC protocol.
                This argument may also be a callable which returns a
                transport instance. Callables will be sent the credentials
                as the first argument and the default transport class as
                the second argument.
            channel (grpc.Channel): DEPRECATED. A ``Channel`` instance
                through which to make calls. This argument is mutually exclusive
                with ``credentials``; providing both will raise an exception.
            credentials (google.auth.credentials.Credentials): The
                authorization credentials to attach to requests. These
                credentials identify this application to the service. If none
                are specified, the client will attempt to ascertain the
                credentials from the environment.
                This argument is mutually exclusive with providing a
                transport instance to ``transport``; doing so will raise
                an exception.
            client_config (dict): DEPRECATED. A dictionary of call options for
                each method. If not specified, the default configuration is used.
            client_info (google.api_core.gapic_v1.client_info.ClientInfo):
                The client info used to send a user-agent string along with
                API requests. If ``None``, then default info will be used.
                Generally, you only need to set this if you're developing
                your own client library.
        """
        # Raise deprecation warnings for things we want to go away.
        if client_config:
            warnings.warn('The `client_config` argument is deprecated.',
                          PendingDeprecationWarning)
        if channel:
            warnings.warn(
                'The `channel` argument is deprecated; use '
                '`transport` instead.', PendingDeprecationWarning)

        # Instantiate the transport.
        # The transport is responsible for handling serialization and
        # deserialization and actually sending data to the service.
        if transport:
            if callable(transport):
                self.transport = transport(
                    credentials=credentials,
                    default_class=asset_service_grpc_transport.
                    AssetServiceGrpcTransport,
                )
            else:
                if credentials:
                    raise ValueError(
                        'Received both a transport instance and '
                        'credentials; these are mutually exclusive.')
                self.transport = transport
        else:
            self.transport = asset_service_grpc_transport.AssetServiceGrpcTransport(
                address=self.SERVICE_ADDRESS,
                channel=channel,
                credentials=credentials,
            )

        if client_info is None:
            client_info = google.api_core.gapic_v1.client_info.ClientInfo(
                gapic_version=_GAPIC_LIBRARY_VERSION, )
        else:
            client_info.gapic_version = _GAPIC_LIBRARY_VERSION
        self._client_info = client_info

        # Parse out the default settings for retry and timeout for each RPC
        # from the client configuration.
        # (Ordinarily, these are the defaults specified in the `*_config.py`
        # file next to this one.)
        self._method_configs = google.api_core.gapic_v1.config.parse_method_configs(
            client_config['interfaces'][self._INTERFACE_NAME], )

        # Save a dictionary of cached API call functions.
        # These are the actual callables which invoke the proper
        # transport methods, wrapped with `wrap_method` to add retry,
        # timeout, and the like.
        self._inner_api_calls = {}

    # Service calls
    def export_assets(self,
                      parent,
                      output_config,
                      read_time=None,
                      asset_types=None,
                      content_type=None,
                      retry=google.api_core.gapic_v1.method.DEFAULT,
                      timeout=google.api_core.gapic_v1.method.DEFAULT,
                      metadata=None):
        """
        Exports assets with time and resource types to a given Cloud Storage
        location. The output format is newline-delimited JSON. This API
        implements the ``google.longrunning.Operation`` API allowing you to keep
        track of the export.

        Example:
            >>> from google.cloud import asset_v1beta1
            >>>
            >>> client = asset_v1beta1.AssetServiceClient()
            >>>
            >>> parent = client.project_path('[PROJECT]')
            >>>
            >>> # TODO: Initialize `output_config`:
            >>> output_config = {}
            >>>
            >>> response = client.export_assets(parent, output_config)
            >>>
            >>> def callback(operation_future):
            ...     # Handle result.
            ...     result = operation_future.result()
            >>>
            >>> response.add_done_callback(callback)
            >>>
            >>> # Handle metadata.
            >>> metadata = response.metadata()

        Args:
            parent (str): Required. The relative name of the root asset. This can only be an organization
                number (such as "organizations/123"), a project ID (such as
                "projects/my-project-id"), or a project number (such as "projects/12345").
            output_config (Union[dict, ~google.cloud.asset_v1beta1.types.OutputConfig]): Required. Output configuration indicating where the results will be output
                to. All results will be in newline delimited JSON format.

                If a dict is provided, it must be of the same form as the protobuf
                message :class:`~google.cloud.asset_v1beta1.types.OutputConfig`
            read_time (Union[dict, ~google.cloud.asset_v1beta1.types.Timestamp]): Timestamp to take an asset snapshot. This can only be set to a timestamp in
                the past or of the current time. If not specified, the current time will be
                used. Due to delays in resource data collection and indexing, there is a
                volatile window during which running the same query may get different
                results.

                If a dict is provided, it must be of the same form as the protobuf
                message :class:`~google.cloud.asset_v1beta1.types.Timestamp`
            asset_types (list[str]): A list of asset types of which to take a snapshot for. For example:
                "google.compute.disk". If specified, only matching assets will be returned.
            content_type (~google.cloud.asset_v1beta1.types.ContentType): Asset content type. If not specified, no content but the asset name will be
                returned.
            retry (Optional[google.api_core.retry.Retry]):  A retry object used
                to retry requests. If ``None`` is specified, requests will not
                be retried.
            timeout (Optional[float]): The amount of time, in seconds, to wait
                for the request to complete. Note that if ``retry`` is
                specified, the timeout applies to each individual attempt.
            metadata (Optional[Sequence[Tuple[str, str]]]): Additional metadata
                that is provided to the method.

        Returns:
            A :class:`~google.cloud.asset_v1beta1.types._OperationFuture` instance.

        Raises:
            google.api_core.exceptions.GoogleAPICallError: If the request
                    failed for any reason.
            google.api_core.exceptions.RetryError: If the request failed due
                    to a retryable error and retry attempts failed.
            ValueError: If the parameters are invalid.
        """
        # Wrap the transport method to add retry and timeout logic.
        if 'export_assets' not in self._inner_api_calls:
            self._inner_api_calls[
                'export_assets'] = google.api_core.gapic_v1.method.wrap_method(
                    self.transport.export_assets,
                    default_retry=self._method_configs['ExportAssets'].retry,
                    default_timeout=self._method_configs['ExportAssets'].
                    timeout,
                    client_info=self._client_info,
                )

        request = asset_service_pb2.ExportAssetsRequest(
            parent=parent,
            output_config=output_config,
            read_time=read_time,
            asset_types=asset_types,
            content_type=content_type,
        )
        operation = self._inner_api_calls['export_assets'](
            request, retry=retry, timeout=timeout, metadata=metadata)
        return google.api_core.operation.from_gapic(
            operation,
            self.transport._operations_client,
            asset_service_pb2.ExportAssetsResponse,
            metadata_type=asset_service_pb2.ExportAssetsRequest,
        )

    def batch_get_assets_history(
            self,
            parent,
            content_type,
            read_time_window,
            asset_names=None,
            retry=google.api_core.gapic_v1.method.DEFAULT,
            timeout=google.api_core.gapic_v1.method.DEFAULT,
            metadata=None):
        """
        Batch gets the update history of assets that overlap a time window. For
        RESOURCE content, this API outputs history with asset in both non-delete
        or deleted status. For IAM\_POLICY content, this API outputs history
        when the asset and its attached IAM POLICY both exist. This can create
        gaps in the output history.

        Example:
            >>> from google.cloud import asset_v1beta1
            >>> from google.cloud.asset_v1beta1 import enums
            >>>
            >>> client = asset_v1beta1.AssetServiceClient()
            >>>
            >>> parent = client.project_path('[PROJECT]')
            >>>
            >>> # TODO: Initialize `content_type`:
            >>> content_type = enums.ContentType.CONTENT_TYPE_UNSPECIFIED
            >>>
            >>> # TODO: Initialize `read_time_window`:
            >>> read_time_window = {}
            >>>
            >>> response = client.batch_get_assets_history(parent, content_type, read_time_window)

        Args:
            parent (str): Required. The relative name of the root asset. It can only be an
                organization number (such as "organizations/123"), a project ID (such as
                "projects/my-project-id")", or a project number (such as "projects/12345").
            content_type (~google.cloud.asset_v1beta1.types.ContentType): Required. The content type.
            read_time_window (Union[dict, ~google.cloud.asset_v1beta1.types.TimeWindow]): Required. The time window for the asset history. The start time is
                required. The returned results contain all temporal assets whose time
                window overlap with read\_time\_window.

                If a dict is provided, it must be of the same form as the protobuf
                message :class:`~google.cloud.asset_v1beta1.types.TimeWindow`
            asset_names (list[str]): A list of the full names of the assets. For example:
                ``//compute.googleapis.com/projects/my_project_123/zones/zone1/instances/instance1``.
                See `Resource
                Names <https://cloud.google.com/apis/design/resource_names#full_resource_name>`__
                for more info.

                The request becomes a no-op if the asset name list is empty, and the max
                size of the asset name list is 100 in one request.
            retry (Optional[google.api_core.retry.Retry]):  A retry object used
                to retry requests. If ``None`` is specified, requests will not
                be retried.
            timeout (Optional[float]): The amount of time, in seconds, to wait
                for the request to complete. Note that if ``retry`` is
                specified, the timeout applies to each individual attempt.
            metadata (Optional[Sequence[Tuple[str, str]]]): Additional metadata
                that is provided to the method.

        Returns:
            A :class:`~google.cloud.asset_v1beta1.types.BatchGetAssetsHistoryResponse` instance.

        Raises:
            google.api_core.exceptions.GoogleAPICallError: If the request
                    failed for any reason.
            google.api_core.exceptions.RetryError: If the request failed due
                    to a retryable error and retry attempts failed.
            ValueError: If the parameters are invalid.
        """
        # Wrap the transport method to add retry and timeout logic.
        if 'batch_get_assets_history' not in self._inner_api_calls:
            self._inner_api_calls[
                'batch_get_assets_history'] = google.api_core.gapic_v1.method.wrap_method(
                    self.transport.batch_get_assets_history,
                    default_retry=self.
                    _method_configs['BatchGetAssetsHistory'].retry,
                    default_timeout=self.
                    _method_configs['BatchGetAssetsHistory'].timeout,
                    client_info=self._client_info,
                )

        request = asset_service_pb2.BatchGetAssetsHistoryRequest(
            parent=parent,
            content_type=content_type,
            read_time_window=read_time_window,
            asset_names=asset_names,
        )
        return self._inner_api_calls['batch_get_assets_history'](
            request, retry=retry, timeout=timeout, metadata=metadata)
