var workingDateRange = "LAST_14_DAYS";

function main() {
	
  lowerBidsToTopKeywords();
  raiseBidsToMidPositionKeywords();
  raiseBidsToLowPositionKeywords();

}

function lowerBidsToTopKeywords () {
  //Anything better than this needs to be bid down a bit.
  var idealAveragePosition = 2.1;
  //Let's lower the bids 10%
  var adjustment = 10 / 100;
  
  //Get all enabled keywords that have an average position
  //better than idealAveragePosition
  var keywords = AdWordsApp.keywords()
    .withCondition("Status = ENABLED")
    .withCondition("AdGroupStatus = ENABLED")
    .withCondition("CampaignStatus = 'ENABLED'")
    .withCondition("AveragePosition < " + idealAveragePosition)
    .forDateRange(workingDateRange)
    .get();

  while (keywords.hasNext()) {
    var keyword = keywords.next();
    keyword.setMaxCpc(keyword.getMaxCpc() * (1 - adjustment));
  }
}	

function raiseBidsToMidPositionKeywords () {
  //This is where we want to be.
  var idealAveragePosition = 2.1;
  //Anything better than this but worse than Ideal
  //needs their bids increased moderately. 
  var notSoTerribleYetLowPosition = 5.9
  //Let's increase the bids 20%
  var adjustment = 20 / 100;
  
  //Get all enabled keywords that have an average position
  //worse than idealAveragePosition but
  //better than notSoTerribleYetLowPosition
  var keywords = AdWordsApp.keywords()
    .withCondition("Status = ENABLED")
    .withCondition("AdGroupStatus = ENABLED")
    .withCondition("CampaignStatus = 'ENABLED'")
    .withCondition("AveragePosition > " + idealAveragePosition)
    .withCondition("AveragePosition < " + notSoTerribleYetLowPosition)
    .forDateRange(workingDateRange)
    .get();

  while (keywords.hasNext()) {
    var keyword = keywords.next();
    keyword.setMaxCpc(keyword.getMaxCpc() * (1 + adjustment));
  }
}

function raiseBidsToLowPositionKeywords () {
  //Anything below this needs urgent help
  var lowestPossibleAveragePosition = 6;
  //Let's increase the bids 40%
  var adjustment = 40 / 100;
  
  //Get all enabled keywords that have an average position
  //worse than lowestPossibleAveragePosition
  var keywords = AdWordsApp.keywords()
    .withCondition("Status = ENABLED")
    .withCondition("AdGroupStatus = ENABLED")
    .withCondition("CampaignStatus = 'ENABLED'")
    .withCondition("AveragePosition > " + lowestPossibleAveragePosition)
    .forDateRange(workingDateRange)
    .get();

  while (keywords.hasNext()) {
    var keyword = keywords.next();
    keyword.setMaxCpc(keyword.getMaxCpc() * (1 + adjustment));
  }
}