// Copyright 2013 Google Inc. All Rights Reserved.
//
// 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
//
//     http://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 dfp.axis.v201403.creativeservice;

import com.google.api.ads.common.lib.auth.OfflineCredentials;
import com.google.api.ads.common.lib.auth.OfflineCredentials.Api;
import com.google.api.ads.common.lib.utils.Media;
import com.google.api.ads.dfp.axis.factory.DfpServices;
import com.google.api.ads.dfp.axis.utils.v201403.StatementBuilder;
import com.google.api.ads.dfp.axis.v201403.Creative;
import com.google.api.ads.dfp.axis.v201403.CreativeAsset;
import com.google.api.ads.dfp.axis.v201403.CreativeServiceInterface;
import com.google.api.ads.dfp.axis.v201403.ImageCreative;
import com.google.api.ads.dfp.lib.client.DfpSession;
import com.google.api.client.auth.oauth2.Credential;

import java.util.Random;

/**
 * This example creates a copy of an image creative. To determine which
 * image creatives exist, run GetImageCreatives.java.
 *
 * Credentials and properties in {@code fromFile()} are pulled from the
 * "ads.properties" file. See README for more info.
 *
 * Tags: CreativeService.createCreatives
 *
 * @author Adam Rogal
 */
public class CopyImageCreatives {

  // Set the ID of the image creative to copy.
  private static final String CREATIVE_ID = "INSERT_CREATIVE_ID_HERE";

  public static void runExample(DfpServices dfpServices, DfpSession session, long creativeId)
      throws Exception {
    // Get the CreativeService.
    CreativeServiceInterface creativeService =
        dfpServices.get(session, CreativeServiceInterface.class);

    // Create a statement to get the image creative.
    StatementBuilder statementBuilder = new StatementBuilder()
        .where("id = :id")
        .orderBy("id ASC")
        .limit(StatementBuilder.SUGGESTED_PAGE_LIMIT)
        .withBindVariableValue("id", creativeId);

    // Get the creative.
    ImageCreative imageCreative = (ImageCreative) creativeService.getCreativesByStatement(
        statementBuilder.toStatement()).getResults()[0];

    // Modify existing image creative to copy it.
    imageCreative.setId(null);
    imageCreative.setName("Image creative copy #" + new Random().nextInt(Integer.MAX_VALUE));

    // Create copy of image asset.
    CreativeAsset creativeAsset = new CreativeAsset();
    creativeAsset.setFileName("image.jpg");
    creativeAsset.setAssetByteArray(Media.getMediaDataFromUrl(
        imageCreative.getPrimaryImageAsset().getAssetUrl()));
    creativeAsset.setSize(imageCreative.getPrimaryImageAsset().getSize());
    imageCreative.setPrimaryImageAsset(creativeAsset);

    // Create the creative on the server.
    Creative[] creatives =
        creativeService.createCreatives(new Creative[] {imageCreative});

    for (Creative createdCreative : creatives) {
      System.out.printf("A creative with ID \"%d\", name \"%s\", and type \"%s\""
          + " was created and can be previewed at: %s\n", createdCreative.getId(),
          createdCreative.getName(), createdCreative.getCreativeType(),
          createdCreative.getPreviewUrl());
    }
  }

  public static void main(String[] args) throws Exception {
    // Generate a refreshable OAuth2 credential similar to a ClientLogin token
    // and can be used in place of a service account.
    Credential oAuth2Credential = new OfflineCredentials.Builder()
        .forApi(Api.DFP)
        .fromFile()
        .build()
        .generateCredential();

    // Construct a DfpSession.
    DfpSession session = new DfpSession.Builder()
        .fromFile()
        .withOAuth2Credential(oAuth2Credential)
        .build();

    DfpServices dfpServices = new DfpServices();

    runExample(dfpServices, session, Long.parseLong(CREATIVE_ID));
  }
}
