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// Copyright 2012 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 adwords.axis.v201309.basicoperations;

import com.google.api.ads.adwords.axis.factory.AdWordsServices;
import com.google.api.ads.adwords.axis.v201309.cm.AdGroupCriterion;
import com.google.api.ads.adwords.axis.v201309.cm.AdGroupCriterionOperation;
import com.google.api.ads.adwords.axis.v201309.cm.AdGroupCriterionReturnValue;
import com.google.api.ads.adwords.axis.v201309.cm.AdGroupCriterionServiceInterface;
import com.google.api.ads.adwords.axis.v201309.cm.BiddableAdGroupCriterion;
import com.google.api.ads.adwords.axis.v201309.cm.BiddingStrategyConfiguration;
import com.google.api.ads.adwords.axis.v201309.cm.Bids;
import com.google.api.ads.adwords.axis.v201309.cm.CpcBid;
import com.google.api.ads.adwords.axis.v201309.cm.Criterion;
import com.google.api.ads.adwords.axis.v201309.cm.Keyword;
import com.google.api.ads.adwords.axis.v201309.cm.KeywordMatchType;
import com.google.api.ads.adwords.axis.v201309.cm.Money;
import com.google.api.ads.adwords.axis.v201309.cm.Operator;
import com.google.api.ads.adwords.lib.client.AdWordsSession;
import com.google.api.ads.common.lib.auth.OfflineCredentials;
import com.google.api.ads.common.lib.auth.OfflineCredentials.Api;
import com.google.api.client.auth.oauth2.Credential;

/**
 * This example updates the bid of a keyword. To add a keyword, run
 * AddKeywords.java.
 *
 * Credentials and properties in {@code fromFile()} are pulled from the
 * "ads.properties" file. See README for more info.
 *
 * Tags: AdGroupCriterionService.mutate
 *
 * Category: adx-exclude
 *
 * @author Kevin Winter
 */
public class UpdateKeyword {

        public static Long runExample(Long adGroupId, Long keywordId, String text, Long bidAmount, String type)
        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.ADWORDS)
                .fromFile()
                .build()
                .generateCredential();

                // Construct an AdWordsSession.
                AdWordsSession session = new AdWordsSession.Builder()
                .fromFile()
                .withOAuth2Credential(oAuth2Credential)
                .build();

                AdWordsServices adWordsServices = new AdWordsServices();
                
                // Get the AdGroupCriterionService.
                AdGroupCriterionServiceInterface adGroupCriterionService =
                        adWordsServices.get(session, AdGroupCriterionServiceInterface.class);

                Keyword keyword = new Keyword();
                if(text!=null && !("").equalsIgnoreCase(text)){
                        keyword.setText(text);
                }
                if(type!=null && !("").equalsIgnoreCase(type)){
                        keyword.setMatchType(KeywordMatchType.fromString(type));
                }
                keyword.setId(keywordId);
                // Create ad group criterion with updated bid.
                /*Criterion criterion = new Criterion();
                criterion.setId(keywordId);*/
                
                BiddableAdGroupCriterion biddableAdGroupCriterion = new BiddableAdGroupCriterion();
                biddableAdGroupCriterion.setAdGroupId(adGroupId);
                biddableAdGroupCriterion.setCriterion(keyword);
                
                if(bidAmount > -1l){
                        // Create bids.
                        BiddingStrategyConfiguration biddingStrategyConfiguration = new BiddingStrategyConfiguration();
                        CpcBid bid = new CpcBid();
                        bid.setBid(new Money(null, bidAmount));
                        biddingStrategyConfiguration.setBids(new Bids[] {bid});
                        biddableAdGroupCriterion.setBiddingStrategyConfiguration(biddingStrategyConfiguration);
                }
                // Create operations.
                AdGroupCriterionOperation operation = new AdGroupCriterionOperation();
                operation.setOperand(biddableAdGroupCriterion);
                operation.setOperator(Operator.SET);

                AdGroupCriterionOperation[] operations = new AdGroupCriterionOperation[] {operation};
                
                if((text!=null && ("").equalsIgnoreCase(text)) || (type!=null && ("").equalsIgnoreCase(type)) || (bidAmount > -1l)){
                        // Update ad group criteria.
                        AdGroupCriterionReturnValue result = adGroupCriterionService.mutate(operations);
                        
                        Long criterionId = 0l;
                        // Display ad group criteria.
                        for (AdGroupCriterion adGroupCriterionResult : result.getValue()) {
                                if (adGroupCriterionResult instanceof BiddableAdGroupCriterion) {
                                        biddableAdGroupCriterion = (BiddableAdGroupCriterion) adGroupCriterionResult;
                                        Bids[] bids = biddableAdGroupCriterion.getBiddingStrategyConfiguration()
                                                                        .getBids();
                                        CpcBid cpcBid = null;
                                        for(Bids b: bids){
                                                if("CpcBid".equalsIgnoreCase(b.getBidsType())){
                                                        cpcBid = (CpcBid) b;
                                                }
                                        }
                                        System.out.println(
                                                        "Ad group criterion with ad group id \""
                                                        + biddableAdGroupCriterion.getAdGroupId() + "\", criterion id \""
                                                        + biddableAdGroupCriterion.getCriterion().getId() + "\", type \""
                                                        + biddableAdGroupCriterion.getCriterion().getCriterionType()
                                                        + "\", and bid \""
                                                        + cpcBid!= null ? cpcBid.getBid().getMicroAmount() : " "+ "\" was updated.");
                                        criterionId = biddableAdGroupCriterion.getCriterion().getId();
                                }
                        }
                        return criterionId;
                }
                
                return 0l;
        }
}