source: src/main/java/agents/anac/y2014/Gangster/ExtendedBidDetails.java

package agents.anac.y2014.Gangster;

import java.util.Comparator;

import genius.core.Bid;
import genius.core.bidding.BidDetails;

/**
 * appart from the bid also stores our utility, the closest bid from the opponent and the distance to this closest bid.
 * 
 * 
 * @author ddejonge
 *
 */
class ExtendedBidDetails{

        static int numCreated = 0;
        
        int bidID;  //this is needed as a tie-breaker for the camparators, because we can't put two objects in a TreeSet which compare equally.
                                //IDEA: instead of using a counter to identify this object, we could use the underlying Bid to identify it. In that way we prevent storing identical bids multiple times.
        
        BidDetails bidDetails;
        
        Bid closestOpponentBid = null;
        int distanceToOpponent = Integer.MAX_VALUE;                             //Distance between my bid and the closest opponent bid.

        Bid ourClosestBid = null;
        int diversity = Integer.MAX_VALUE;
        
        
        public ExtendedBidDetails(BidDetails bidDetails) {
                this.bidDetails = bidDetails;
                this.bidID = numCreated++;
        }
        
        
        /**
         * checks if the given bid is the closest one and if yes, sets it as the closest bid, and sets the distance.
         * 
         * @param opponentBid
         * @throws Exception
         */
        void setClosestOpponentBidMaybe(Bid opponentBid) throws Exception{

                int dist = Utils.calculateManhattanDistance(bidDetails.getBid(), opponentBid);
                if(dist < this.distanceToOpponent){
                        this.distanceToOpponent = dist;
                        this.closestOpponentBid = opponentBid;
                }
                
        }
        
        
        /**
         * Sets the given bid as the closest one, and sets the distance.
         * WARNING: doesn't check if it really is the closest bid!
         * 
         * @param opponentBid
         * @throws Exception
         */
        void setClosestOpponentBid(Bid opponentBid, int distance) throws Exception{
                this.distanceToOpponent = distance;
                closestOpponentBid = opponentBid;
        }

        
        
        void setOurClosestBidMaybe(Bid ourBid) throws Exception{
        
                int dist = Utils.calculateManhattanDistance(this.bidDetails.getBid(), ourBid);
                if(dist < this.diversity){
                        this.diversity = dist;
                        this.ourClosestBid = ourBid;
                }
                
        }
        
        
        void setOurClosestBid(Bid ourBid, int diversity) throws Exception{
                this.diversity = diversity;
                this.ourClosestBid = ourBid;
        }
        
        double getMyUndiscountedUtil(){
                return this.bidDetails.getMyUndiscountedUtil();
        }
        
        
        static ExtendedBidDetails dominator(ExtendedBidDetails b1, ExtendedBidDetails b2){
                
                if(b1.bidDetails.getMyUndiscountedUtil() > b2.bidDetails.getMyUndiscountedUtil() && b1.distanceToOpponent < b2.distanceToOpponent){
                        return b1;
                }
                
                if(b2.bidDetails.getMyUndiscountedUtil() > b1.bidDetails.getMyUndiscountedUtil() && b2.distanceToOpponent < b1.distanceToOpponent){
                        return b2;
                }
                
                return null;
        }

        
        public static Comparator<ExtendedBidDetails> UtilityComparator = new Comparator<ExtendedBidDetails>() {

                public int compare(ExtendedBidDetails bid1, ExtendedBidDetails bid2) {
                        
                        int diff = Double.compare(bid1.getMyUndiscountedUtil(), bid2.getMyUndiscountedUtil());
                        if(diff == 0){
                                //this is needed as a tie-breaker for the camparators, because we can't put two objects in a TreeSet which compare equally.
                                return bid1.bidDetails.getBid().toString().compareTo(bid2.bidDetails.getBid().toString());
                        }
                        
                        return diff;
                }

        };
        
        public static Comparator<ExtendedBidDetails> DistanceComparator = new Comparator<ExtendedBidDetails>() {
                public int compare(ExtendedBidDetails bid1, ExtendedBidDetails bid2) {
                        
                        int diff = bid1.distanceToOpponent - bid2.distanceToOpponent;
                        if(diff == 0){
                                 //this is needed as a tie-breaker for the camparators, because we can't put two objects in a TreeSet which compare equally.
                                return bid1.bidDetails.getBid().toString().compareTo(bid2.bidDetails.getBid().toString());
                        }
                        return diff;
                }
        };

        public static Comparator<ExtendedBidDetails> DiversityComparator = new Comparator<ExtendedBidDetails>() {
                public int compare(ExtendedBidDetails bid1, ExtendedBidDetails bid2) {
                        
                        int diff = bid1.diversity - bid2.diversity;
                        if(diff == 0){
                                //this is needed as a tie-breaker for the camparators, because we can't put two objects in a TreeSet which compare equally.
                                return bid1.bidDetails.getBid().toString().compareTo(bid2.bidDetails.getBid().toString());
                        }
                        return diff;
                }
        };
        
        
        public static Comparator<ExtendedBidDetails> IDComparator = new Comparator<ExtendedBidDetails>() {
                public int compare(ExtendedBidDetails bid1, ExtendedBidDetails bid2) {
                        return bid1.bidDetails.getBid().toString().compareTo(bid2.bidDetails.getBid().toString());
                }
        };
        
        
        public boolean equals(Object o){
                
                if(o instanceof ExtendedBidDetails){
                        return this.bidDetails.getBid().toString().equals(((ExtendedBidDetails)o).bidDetails.getBid().toString());
                }
                
                return false;
        }
}