#!/usr/bin/perl -w
#
# Copyright 2017, 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.
#
# Retrieves all the ad group level bid modifiers of the account.

use strict;
use lib "../../../lib";
use utf8;

use Google::Ads::AdWords::Client;
use Google::Ads::AdWords::Logging;
use Google::Ads::AdWords::v201710::OrderBy;
use Google::Ads::AdWords::v201710::Paging;
use Google::Ads::AdWords::v201710::Predicate;
use Google::Ads::AdWords::v201710::Selector;
use Google::Ads::AdWords::Utilities::PageProcessor;

use Cwd qw(abs_path);

use constant PAGE_SIZE => 500;

# Example main subroutine.
sub get_ad_group_bid_modifier {
  my $client = shift;

  # Create selector.
  my $paging = Google::Ads::AdWords::v201710::Paging->new({
      startIndex    => 0,
      numberResults => PAGE_SIZE
  });
  my $selector = Google::Ads::AdWords::v201710::Selector->new({
      fields => ["CampaignId", "AdGroupId", "BidModifier", "Id"],
      paging => $paging
  });

  # Paginate through results.
  Google::Ads::AdWords::Utilities::PageProcessor->new({
      client   => $client,
      service  => $client->AdGroupBidModifierService(),
      selector => $selector
    }
    )->process_entries(
    sub {
      my ($modifier) = @_;
      my $modifier_value = $modifier->get_bidModifier() || "unset";
      printf "Campaign ID %s, AdGroup ID %s, Criterion ID %s has ad group " .
        "level modifier: %s\n", $modifier->get_campaignId(),
        $modifier->get_adGroupId(), $modifier->get_criterion()->get_id(),
        $modifier_value;
    });

  return 1;
}

# Don't run the example if the file is being included.
if (abs_path($0) ne abs_path(__FILE__)) {
  return 1;
}

# Log SOAP XML request, response and API errors.
Google::Ads::AdWords::Logging::enable_all_logging();

# Get AdWords Client, credentials will be read from ~/adwords.properties.
my $client = Google::Ads::AdWords::Client->new({version => "v201710"});

# By default examples are set to die on any server returned fault.
$client->set_die_on_faults(1);

# Call the example
get_ad_group_bid_modifier($client);
