/*
 * 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.
 */
package com.google.cloud.texttospeech.v1beta1;

import com.google.api.core.BetaApi;
import com.google.api.gax.core.BackgroundResource;
import com.google.api.gax.rpc.UnaryCallable;
import com.google.cloud.texttospeech.v1beta1.stub.TextToSpeechStub;
import com.google.cloud.texttospeech.v1beta1.stub.TextToSpeechStubSettings;
import java.io.IOException;
import java.util.concurrent.TimeUnit;
import javax.annotation.Generated;

// AUTO-GENERATED DOCUMENTATION AND SERVICE
/**
 * Service Description: Service that implements Google Cloud Text-to-Speech API.
 *
 * <p>This class provides the ability to make remote calls to the backing service through method
 * calls that map to API methods. Sample code to get started:
 *
 * <pre>
 * <code>
 * try (TextToSpeechClient textToSpeechClient = TextToSpeechClient.create()) {
 *   String languageCode = "";
 *   ListVoicesResponse response = textToSpeechClient.listVoices(languageCode);
 * }
 * </code>
 * </pre>
 *
 * <p>Note: close() needs to be called on the textToSpeechClient object to clean up resources such
 * as threads. In the example above, try-with-resources is used, which automatically calls close().
 *
 * <p>The surface of this class includes several types of Java methods for each of the API's
 * methods:
 *
 * <ol>
 *   <li> A "flattened" method. With this type of method, the fields of the request type have been
 *       converted into function parameters. It may be the case that not all fields are available as
 *       parameters, and not every API method will have a flattened method entry point.
 *   <li> A "request object" method. This type of method only takes one parameter, a request object,
 *       which must be constructed before the call. Not every API method will have a request object
 *       method.
 *   <li> A "callable" method. This type of method takes no parameters and returns an immutable API
 *       callable object, which can be used to initiate calls to the service.
 * </ol>
 *
 * <p>See the individual methods for example code.
 *
 * <p>Many parameters require resource names to be formatted in a particular way. To assist with
 * these names, this class includes a format method for each type of name, and additionally a parse
 * method to extract the individual identifiers contained within names that are returned.
 *
 * <p>This class can be customized by passing in a custom instance of TextToSpeechSettings to
 * create(). For example:
 *
 * <p>To customize credentials:
 *
 * <pre>
 * <code>
 * TextToSpeechSettings textToSpeechSettings =
 *     TextToSpeechSettings.newBuilder()
 *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
 *         .build();
 * TextToSpeechClient textToSpeechClient =
 *     TextToSpeechClient.create(textToSpeechSettings);
 * </code>
 * </pre>
 *
 * To customize the endpoint:
 *
 * <pre>
 * <code>
 * TextToSpeechSettings textToSpeechSettings =
 *     TextToSpeechSettings.newBuilder().setEndpoint(myEndpoint).build();
 * TextToSpeechClient textToSpeechClient =
 *     TextToSpeechClient.create(textToSpeechSettings);
 * </code>
 * </pre>
 */
@Generated("by gapic-generator")
@BetaApi
public class TextToSpeechClient implements BackgroundResource {
  private final TextToSpeechSettings settings;
  private final TextToSpeechStub stub;

  /** Constructs an instance of TextToSpeechClient with default settings. */
  public static final TextToSpeechClient create() throws IOException {
    return create(TextToSpeechSettings.newBuilder().build());
  }

  /**
   * Constructs an instance of TextToSpeechClient, using the given settings. The channels are
   * created based on the settings passed in, or defaults for any settings that are not set.
   */
  public static final TextToSpeechClient create(TextToSpeechSettings settings) throws IOException {
    return new TextToSpeechClient(settings);
  }

  /**
   * Constructs an instance of TextToSpeechClient, using the given stub for making calls. This is
   * for advanced usage - prefer to use TextToSpeechSettings}.
   */
  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
  public static final TextToSpeechClient create(TextToSpeechStub stub) {
    return new TextToSpeechClient(stub);
  }

  /**
   * Constructs an instance of TextToSpeechClient, using the given settings. This is protected so
   * that it is easy to make a subclass, but otherwise, the static factory methods should be
   * preferred.
   */
  protected TextToSpeechClient(TextToSpeechSettings settings) throws IOException {
    this.settings = settings;
    this.stub = ((TextToSpeechStubSettings) settings.getStubSettings()).createStub();
  }

  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
  protected TextToSpeechClient(TextToSpeechStub stub) {
    this.settings = null;
    this.stub = stub;
  }

  public final TextToSpeechSettings getSettings() {
    return settings;
  }

  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
  public TextToSpeechStub getStub() {
    return stub;
  }

  // AUTO-GENERATED DOCUMENTATION AND METHOD
  /**
   * Returns a list of [Voice][google.cloud.texttospeech.v1beta1.Voice] supported for synthesis.
   *
   * <p>Sample code:
   *
   * <pre><code>
   * try (TextToSpeechClient textToSpeechClient = TextToSpeechClient.create()) {
   *   String languageCode = "";
   *   ListVoicesResponse response = textToSpeechClient.listVoices(languageCode);
   * }
   * </code></pre>
   *
   * @param languageCode Optional (but recommended)
   *     [BCP-47](https://www.rfc-editor.org/rfc/bcp/bcp47.txt) language tag. If specified, the
   *     ListVoices call will only return voices that can be used to synthesize this language_code.
   *     E.g. when specifying "en-NZ", you will get supported "en-&#42;" voices; when specifying
   *     "no", you will get supported "no-&#42;" (Norwegian) and "nb-&#42;" (Norwegian Bokmal)
   *     voices; specifying "zh" will also get supported "cmn-&#42;" voices; specifying "zh-hk" will
   *     also get supported "yue-&#42;" voices.
   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
   */
  public final ListVoicesResponse listVoices(String languageCode) {

    ListVoicesRequest request =
        ListVoicesRequest.newBuilder().setLanguageCode(languageCode).build();
    return listVoices(request);
  }

  // AUTO-GENERATED DOCUMENTATION AND METHOD
  /**
   * Returns a list of [Voice][google.cloud.texttospeech.v1beta1.Voice] supported for synthesis.
   *
   * <p>Sample code:
   *
   * <pre><code>
   * try (TextToSpeechClient textToSpeechClient = TextToSpeechClient.create()) {
   *   ListVoicesRequest request = ListVoicesRequest.newBuilder().build();
   *   ListVoicesResponse response = textToSpeechClient.listVoices(request);
   * }
   * </code></pre>
   *
   * @param request The request object containing all of the parameters for the API call.
   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
   */
  public final ListVoicesResponse listVoices(ListVoicesRequest request) {
    return listVoicesCallable().call(request);
  }

  // AUTO-GENERATED DOCUMENTATION AND METHOD
  /**
   * Returns a list of [Voice][google.cloud.texttospeech.v1beta1.Voice] supported for synthesis.
   *
   * <p>Sample code:
   *
   * <pre><code>
   * try (TextToSpeechClient textToSpeechClient = TextToSpeechClient.create()) {
   *   ListVoicesRequest request = ListVoicesRequest.newBuilder().build();
   *   ApiFuture&lt;ListVoicesResponse&gt; future = textToSpeechClient.listVoicesCallable().futureCall(request);
   *   // Do something
   *   ListVoicesResponse response = future.get();
   * }
   * </code></pre>
   */
  public final UnaryCallable<ListVoicesRequest, ListVoicesResponse> listVoicesCallable() {
    return stub.listVoicesCallable();
  }

  // AUTO-GENERATED DOCUMENTATION AND METHOD
  /**
   * Synthesizes speech synchronously: receive results after all text input has been processed.
   *
   * <p>Sample code:
   *
   * <pre><code>
   * try (TextToSpeechClient textToSpeechClient = TextToSpeechClient.create()) {
   *   SynthesisInput input = SynthesisInput.newBuilder().build();
   *   VoiceSelectionParams voice = VoiceSelectionParams.newBuilder().build();
   *   AudioConfig audioConfig = AudioConfig.newBuilder().build();
   *   SynthesizeSpeechResponse response = textToSpeechClient.synthesizeSpeech(input, voice, audioConfig);
   * }
   * </code></pre>
   *
   * @param input Required. The Synthesizer requires either plain text or SSML as input.
   * @param voice Required. The desired voice of the synthesized audio.
   * @param audioConfig Required. The configuration of the synthesized audio.
   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
   */
  public final SynthesizeSpeechResponse synthesizeSpeech(
      SynthesisInput input, VoiceSelectionParams voice, AudioConfig audioConfig) {

    SynthesizeSpeechRequest request =
        SynthesizeSpeechRequest.newBuilder()
            .setInput(input)
            .setVoice(voice)
            .setAudioConfig(audioConfig)
            .build();
    return synthesizeSpeech(request);
  }

  // AUTO-GENERATED DOCUMENTATION AND METHOD
  /**
   * Synthesizes speech synchronously: receive results after all text input has been processed.
   *
   * <p>Sample code:
   *
   * <pre><code>
   * try (TextToSpeechClient textToSpeechClient = TextToSpeechClient.create()) {
   *   SynthesisInput input = SynthesisInput.newBuilder().build();
   *   VoiceSelectionParams voice = VoiceSelectionParams.newBuilder().build();
   *   AudioConfig audioConfig = AudioConfig.newBuilder().build();
   *   SynthesizeSpeechRequest request = SynthesizeSpeechRequest.newBuilder()
   *     .setInput(input)
   *     .setVoice(voice)
   *     .setAudioConfig(audioConfig)
   *     .build();
   *   SynthesizeSpeechResponse response = textToSpeechClient.synthesizeSpeech(request);
   * }
   * </code></pre>
   *
   * @param request The request object containing all of the parameters for the API call.
   * @throws com.google.api.gax.rpc.ApiException if the remote call fails
   */
  public final SynthesizeSpeechResponse synthesizeSpeech(SynthesizeSpeechRequest request) {
    return synthesizeSpeechCallable().call(request);
  }

  // AUTO-GENERATED DOCUMENTATION AND METHOD
  /**
   * Synthesizes speech synchronously: receive results after all text input has been processed.
   *
   * <p>Sample code:
   *
   * <pre><code>
   * try (TextToSpeechClient textToSpeechClient = TextToSpeechClient.create()) {
   *   SynthesisInput input = SynthesisInput.newBuilder().build();
   *   VoiceSelectionParams voice = VoiceSelectionParams.newBuilder().build();
   *   AudioConfig audioConfig = AudioConfig.newBuilder().build();
   *   SynthesizeSpeechRequest request = SynthesizeSpeechRequest.newBuilder()
   *     .setInput(input)
   *     .setVoice(voice)
   *     .setAudioConfig(audioConfig)
   *     .build();
   *   ApiFuture&lt;SynthesizeSpeechResponse&gt; future = textToSpeechClient.synthesizeSpeechCallable().futureCall(request);
   *   // Do something
   *   SynthesizeSpeechResponse response = future.get();
   * }
   * </code></pre>
   */
  public final UnaryCallable<SynthesizeSpeechRequest, SynthesizeSpeechResponse>
      synthesizeSpeechCallable() {
    return stub.synthesizeSpeechCallable();
  }

  @Override
  public final void close() {
    stub.close();
  }

  @Override
  public void shutdown() {
    stub.shutdown();
  }

  @Override
  public boolean isShutdown() {
    return stub.isShutdown();
  }

  @Override
  public boolean isTerminated() {
    return stub.isTerminated();
  }

  @Override
  public void shutdownNow() {
    stub.shutdownNow();
  }

  @Override
  public boolean awaitTermination(long duration, TimeUnit unit) throws InterruptedException {
    return stub.awaitTermination(duration, unit);
  }
}
