# Copyright 2017 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.

require "google/cloud/vision/v1/image_annotator_client"

module Google
  module Cloud
    # rubocop:disable LineLength

    ##
    # # Ruby Client for Google Cloud Vision API ([Alpha](https://github.com/GoogleCloudPlatform/google-cloud-ruby#versioning))
    #
    # [Google Cloud Vision API][Product Documentation]:
    # Integrates Google Vision features, including image labeling, face, logo, and
    # landmark detection, optical character recognition (OCR), and detection of
    # explicit content, into applications.
    # - [Product Documentation][]
    #
    # ## Quick Start
    # In order to use this library, you first need to go through the following
    # steps:
    #
    # 1. [Select or create a Cloud Platform project.](https://console.cloud.google.com/project)
    # 2. [Enable the Google Cloud Vision API.](https://console.cloud.google.com/apis/api/vision)
    # 3. [Setup Authentication.](https://googlecloudplatform.github.io/google-cloud-ruby/#/docs/google-cloud/master/guides/authentication)
    #
    # ### Preview
    # #### ImageAnnotatorClient
    # ```rb
    # require "google/cloud/vision/v1"
    #
    # image_annotator_client = Google::Cloud::Vision::V1.new
    # gcs_image_uri = "gs://gapic-toolkit/President_Barack_Obama.jpg"
    # source = { gcs_image_uri: gcs_image_uri }
    # image = { source: source }
    # type = :FACE_DETECTION
    # features_element = { type: type }
    # features = [features_element]
    # requests_element = { image: image, features: features }
    # requests = [requests_element]
    # response = image_annotator_client.batch_annotate_images(requests)
    # ```
    #
    # ### Next Steps
    # - Read the [Google Cloud Vision API Product documentation][Product Documentation]
    #   to learn more about the product and see How-to Guides.
    # - View this [repository's main README](https://github.com/GoogleCloudPlatform/google-cloud-ruby/blob/master/README.md)
    #   to see the full list of Cloud APIs that we cover.
    #
    # [Product Documentation]: https://cloud.google.com/vision
    #
    #
    module Vision
      module V1
        # rubocop:enable LineLength

        ##
        # Service that performs Google Cloud Vision API detection tasks over client
        # images, such as face, landmark, logo, label, and text detection. The
        # ImageAnnotator service returns detected entities from the images.
        #
        # @param credentials [Google::Auth::Credentials, String, Hash, GRPC::Core::Channel, GRPC::Core::ChannelCredentials, Proc]
        #   Provides the means for authenticating requests made by the client. This parameter can
        #   be many types.
        #   A `Google::Auth::Credentials` uses a the properties of its represented keyfile for
        #   authenticating requests made by this client.
        #   A `String` will be treated as the path to the keyfile to be used for the construction of
        #   credentials for this client.
        #   A `Hash` will be treated as the contents of a keyfile to be used for the construction of
        #   credentials for this client.
        #   A `GRPC::Core::Channel` will be used to make calls through.
        #   A `GRPC::Core::ChannelCredentials` for the setting up the RPC client. The channel credentials
        #   should already be composed with a `GRPC::Core::CallCredentials` object.
        #   A `Proc` will be used as an updater_proc for the Grpc channel. The proc transforms the
        #   metadata for requests, generally, to give OAuth credentials.
        # @param scopes [Array<String>]
        #   The OAuth scopes for this service. This parameter is ignored if
        #   an updater_proc is supplied.
        # @param client_config [Hash]
        #   A Hash for call options for each method. See
        #   Google::Gax#construct_settings for the structure of
        #   this data. Falls back to the default config if not specified
        #   or the specified config is missing data points.
        # @param timeout [Numeric]
        #   The default timeout, in seconds, for calls made through this client.
        def self.new \
            service_path: nil,
            port: nil,
            channel: nil,
            chan_creds: nil,
            updater_proc: nil,
            credentials: nil,
            scopes: nil,
            client_config: nil,
            timeout: nil,
            lib_name: nil,
            lib_version: nil
          kwargs = {
            service_path: service_path,
            port: port,
            channel: channel,
            chan_creds: chan_creds,
            updater_proc: updater_proc,
            credentials: credentials,
            scopes: scopes,
            client_config: client_config,
            timeout: timeout,
            lib_name: lib_name,
            lib_version: lib_version
          }.select { |_, v| v != nil }
          Google::Cloud::Vision::V1::ImageAnnotatorClient.new(**kwargs)
        end
      end
    end
  end
end