function main() {
  var domain = 'https://test-google.alfalytics.net';
  // get current account
  var currentAccount = AdWordsApp.currentAccount();
  // definition of start and end date to get report
  var startDate = getStartDate(domain, currentAccount.getCustomerId());
  var endDate = new Date();
  if (!startDate) {
    startDate = new Date();
    startDate.setMonth(startDate.getMonth() - 2);
  } else {
    startDate = new Date(startDate.replace(' ', 'T'));
  }
  while ((endDate - startDate) > 0) {
    var dateRange = String(startDate.getFullYear()) +
        String(startDate.getMonth() + 1).replace(/^(.)$/, '0$1') +
        String(startDate.getDate()).replace(/^(.)$/, '0$1');
    prepareAndSendAds(currentAccount, domain, dateRange, startDate);
    Logger.log('Done');
    startDate.setDate(startDate.getDate() + 1);
  }
}
function getStartDate(domain, customerId) {
  var url = domain + '/api/1.0/ga-accounts?billingId=' + customerId;
  var options = {
    'method': 'GET',
    'muteHttpExceptions': true
  };
  var lastGaAccountReport = JSON.parse(UrlFetchApp.fetch(url, options));
  if (!lastGaAccountReport.rows[0] || !lastGaAccountReport.rows[0].GaAccountReports[0])
    return;
  return lastGaAccountReport.rows[0].GaAccountReports[0].lastReportDate;
}
function prepareAndSendAds(currentAccount, domain, dateRange, startDate) {
  var report = AdsApp.report("SELECT CampaignName, CampaignId, " +
                             "CampaignStatus, AdGroupName, AdGroupId, " +
                             "AdGroupStatus, Id, Status, Cost, " +
                             "Clicks, Impressions, ConversionValue, UniversalAppAdYouTubeVideos " +
                             "FROM AD_PERFORMANCE_REPORT " +
                             "WHERE Impressions > 50 " +
                             "DURING " + dateRange + ',' + dateRange);
  var ads = [];
  var rows = report.rows();
  Logger.log(dateRange);
  while (rows.hasNext()) {
    var row = rows.next();
    var conversions = JSON.stringify(prepareAndSendConversions(currentAccount, domain, dateRange, row['Id']));
    var payload = { "accountName": currentAccount.getName(),
            "accountId": currentAccount.getCustomerId(),
            "campaignName": row['CampaignName'],
            "campaignId": row['CampaignId'],
            "adGroupName": row['AdGroupName'],
            "adGroupId": row['AdGroupId'],
            "status": row['Status'],
            "adId": row['Id'],
            "cost": row['Cost'],
            "clicks": row['Clicks'],
            "impressions": row['Impressions'],
            "conversionValue": row['ConversionValue'],
            "universalAppAdYouTubeVideos": row['UniversalAppAdYouTubeVideos'],
            "reportDate": startDate,
            "conversions": conversions
    };
    var url = domain + '/api/1.0/ga-ad';
    var options = {
      'method': 'POST',
      'payload': payload,
      'muteHttpExceptions': true
    };
    UrlFetchApp.fetch(url,options);
  }
}
function prepareAndSendConversions(currentAccount, domain, dateRange, adId) {
  // getting ad conversions report
  var report = AdsApp.report("SELECT Id, ConversionCategoryName, " +
                            "ConversionTypeName, ConversionTrackerId " +
                            "FROM AD_PERFORMANCE_REPORT " +
                            "WHERE Id = " + adId + " " +
                            "DURING " + dateRange + "," + dateRange);
  var conversions = [];
  rows = report.rows();
  while (rows.hasNext()) {
         row = rows.next();
         conversions.push({
           "adId": row['Id'],
           "name": row['ConversionCategoryName'],
           "conversionTypeName": row['ConversionTypeName'],
           "conversionTrackerId": row['ConversionTrackerId']
         });
  };
  return conversions;
}