import org.chocosolver.solver.Model;
import org.chocosolver.solver.ParallelPortfolio;
import org.chocosolver.solver.Solution;
import org.chocosolver.solver.Solver;
import org.chocosolver.solver.constraints.Constraint;
import org.chocosolver.solver.objective.ParetoOptimizer;
import org.chocosolver.solver.search.strategy.Search;
import org.chocosolver.solver.variables.IntVar;
import org.chocosolver.solver.search.strategy.Search.*;

import java.io.*;
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

public class MainFloat {

    public static void giveDomains (Model model, IntVar[] ugs, String dir, IntVar[] crit0, IntVar[] crit1,
                                    IntVar[] crit2, IntVar[] crit3, IntVar[] crit4, IntVar[] crit5,
                                    IntVar[] crit6, IntVar[] crit7, IntVar[] crit8,IntVar[] crit9,IntVar[] crit10, UG[] nodes, ArrayList<Boolean> flags){
        int index = 0;
        try {
            File allUg = new File(dir + "/ugs_init.txt");
            Scanner readerUg = new Scanner(allUg);

            File critFile0 = new File(dir + "/crit_file0.txt");
            Scanner reader0 = null;
            if(flags.get(0))
                reader0 = new Scanner(critFile0);

            File critFile1 = new File(dir + "/crit_file1.txt");
            Scanner reader1 = null;
            if(flags.get(1))
                reader1 = new Scanner(critFile1);

            File critFile2 = new File(dir + "/crit_file2.txt");
            Scanner reader2 = null;
            if(flags.get(2))
                reader2 = new Scanner(critFile2);


            File critFile3 = new File(dir + "/crit_file3.txt");
            Scanner reader3 = null;
            if(flags.get(3))
                reader3 = new Scanner(critFile3);

            File critFile4 = new File(dir + "/crit_file4.txt");
            Scanner reader4 = null;
            if(flags.get(4))
                reader4 = new Scanner(critFile4);

            File critFile5 = new File(dir + "/crit_file5.txt");
            Scanner reader5 = null;
            if(flags.get(5))
                reader5 = new Scanner(critFile5);

            File critFile6 = new File(dir + "/crit_file6.txt");
            Scanner reader6 = null;
            if(flags.get(6))
                reader6 = new Scanner(critFile6);

            File critFile7 = new File(dir + "/crit_file7.txt");
            Scanner reader7 = null;
            if(flags.get(7))
                reader7 = new Scanner(critFile7);

            File critFile8 = new File(dir + "/crit_file8.txt");
            Scanner reader8 = null;
            if(flags.get(8))
                reader8 = new Scanner(critFile8);

            File critFile9 = new File(dir + "/crit_file9.txt");
            Scanner reader9 = null;
            if(flags.get(9))
                reader9 = new Scanner(critFile9);

            File critFile10 = new File(dir + "/crit_file10.txt");
            Scanner reader10 = null;
            if(flags.get(10))
                reader10 = new Scanner(critFile10);

            while (readerUg.hasNextLine()) {
                String dataUg = readerUg.nextLine();

                String data0 = null;
                if(flags.get(0))
                    data0 = reader0.nextLine();
                String data1 = null;
                if(flags.get(1))
                    data1 = reader1.nextLine();
                String data2 = null;
                if(flags.get(2))
                    data2 = reader2.nextLine();
                String data3 = null;
                if(flags.get(3))
                    data3 = reader3.nextLine();
                String data4 = null;
                if(flags.get(4))
                    data4 = reader4.nextLine();
                String data5 = null;
                if(flags.get(5))
                    data5 = reader5.nextLine();
                String data6 = null;
                if(flags.get(6))
                    data6 = reader6.nextLine();
                String data7 = null;
                if(flags.get(7))
                    data7 = reader7.nextLine();
                String data8 = null;
                if(flags.get(8))
                    data8 = reader8.nextLine();
                String data9 = null;
                if(flags.get(9))
                    data9 = reader9.nextLine();
                String data10 = null;
                if(flags.get(10))
                    data10 = reader10.nextLine();




                if(nodes[index].valid) {
                    String[] str_split = dataUg.split(",", 0);

                    String[] str_split0 = null;
                    if(flags.get(0))
                        str_split0 = data0.split(",", 0);
                    String[] str_split1 = null;
                    if(flags.get(1))
                        str_split1 = data1.split(",", 0);
                    String[] str_split2 = null;
                    if(flags.get(2))
                        str_split2 = data2.split(",", 0);
                    String[] str_split3 = null;
                    if(flags.get(3))
                        str_split3 = data3.split(",", 0);
                    String[] str_split4 = null;
                    if(flags.get(4))
                        str_split4 = data4.split(",", 0);
                    String[] str_split5 = null;
                    if(flags.get(5))
                        str_split5 = data5.split(",", 0);
                    String[] str_split6 = null;
                    if(flags.get(6))
                        str_split6 = data6.split(",", 0);
                    String[] str_split7 = null;
                    if(flags.get(7))
                        str_split7 = data7.split(",", 0);
                    String[] str_split8 = null;
                    if(flags.get(8))
                        str_split8 = data8.split(",", 0);
                    String[] str_split9 = null;
                    if(flags.get(9))
                        str_split9 = data9.split(",", 0);
                    String[] str_split10 = null;
                    if(flags.get(10))
                        str_split10 = data10.split(",", 0);



                    int size = str_split.length;
                    int[] toInsert = new int[size];
                    int[] toInsert0 = new int[size];
                    int[] toInsert1 = new int[size];
                    int[] toInsert2 = new int[size];
                    int[] toInsert3 = new int[size];
                    int[] toInsert4 = new int[size];
                    int[] toInsert5 = new int[size];
                    int[] toInsert6 = new int[size];
                    int[] toInsert7 = new int[size];
                    int[] toInsert8 = new int[size];
                    int[] toInsert9 = new int[size];
                    int[] toInsert10 = new int[size];


                    for (int i = 0; i < size; i++) {
                        toInsert[i] = Integer.parseInt(str_split[i]);
                        if(flags.get(0)) toInsert0[i] = (int) Float.parseFloat(str_split0[i]);
                        else toInsert0[i] = 0;

                        if(flags.get(1)) toInsert1[i] = (int) Float.parseFloat(str_split1[i]);
                        else toInsert1[i] = 0;

                        if(flags.get(2)) toInsert2[i] = (int) Float.parseFloat(str_split2[i]);
                        else toInsert2[i] = 0;

                        if(flags.get(3)) toInsert3[i] = (int) Float.parseFloat(str_split3[i]);
                        else toInsert3[i] = 0;

                        if(flags.get(4)) toInsert4[i] = (int) Float.parseFloat(str_split4[i]);
                        else toInsert4[i] = 0;

                        if(flags.get(5)) toInsert5[i] = (int) Float.parseFloat(str_split5[i]);
                        else toInsert5[i] = 0;

                        if(flags.get(6)) toInsert6[i] = (int) Float.parseFloat(str_split6[i]);
                        else toInsert6[i] = 0;

                        if(flags.get(7)) toInsert7[i] = (int) Float.parseFloat(str_split7[i]);
                        else toInsert7[i] = 0;

                        if(flags.get(8)) toInsert8[i] = (int) Float.parseFloat(str_split8[i]);
                        else toInsert8[i] = 0;

                        if(flags.get(9)) toInsert9[i] = (int) Float.parseFloat(str_split9[i]);
                        else toInsert9[i] = 0;

                        if(flags.get(10)) toInsert10[i] = (int) Float.parseFloat(str_split10[i]);
                        else toInsert10[i] = 0;

                    }

                    ugs[index] = model.intVar("UG_" + (index), toInsert);
                    crit0[index] = model.intVar("Crit0_" + (index), toInsert0);
                    crit1[index] = model.intVar("Crit1_" + (index), toInsert1);

                    crit2[index] = model.intVar("Crit2_" + (index), toInsert2);
                    crit3[index] = model.intVar("Crit3_" + (index), toInsert3);
                    crit4[index] = model.intVar("Crit4_" + (index), toInsert4);
                    crit5[index] = model.intVar("Crit5_" + (index), toInsert5);
                    crit6[index] = model.intVar("Crit6_" + (index), toInsert6);
                    crit7[index] = model.intVar("Crit7_" + (index), toInsert7);
                    crit8[index] = model.intVar("Crit8_" + (index), toInsert8);
                    crit9[index] = model.intVar("Crit9_" + (index), toInsert9);
                    crit10[index] = model.intVar("Crit10_" + (index), toInsert10);





                }
                else {
                    ugs[index] = model.intVar("UG_"+(index), 0);
                    crit0[index] = model.intVar("Crit0"+(index), 0);
                    crit1[index] = model.intVar("Crit1" + (index), 0);

                    crit2[index] = model.intVar("Crit2" + (index), 0);
                    crit3[index] = model.intVar("Crit3" + (index), 0);
                    crit4[index] = model.intVar("Crit4" + (index), 0);
                    crit5[index] = model.intVar("Crit5" + (index), 0);
                    crit6[index] = model.intVar("Crit6" + (index), 0);
                    crit7[index] = model.intVar("Crit7" + (index), 0);
                    crit8[index] = model.intVar("Crit8" + (index), 0);
                    crit9[index] = model.intVar("Crit9" + (index), 0);
                    crit10[index] = model.intVar("Crit10" + (index), 0);

                }

                index++;
            }

            readerUg.close();
            if(flags.get(0)) reader0.close();
            if(flags.get(1)) reader1.close();
            if(flags.get(2)) reader2.close();
            if(flags.get(3)) reader3.close();
            if(flags.get(4)) reader4.close();
            if(flags.get(5)) reader5.close();
            if(flags.get(6)) reader6.close();
            if(flags.get(7)) reader7.close();
            if(flags.get(8)) reader8.close();
            if(flags.get(9)) reader9.close();
            if(flags.get(10)) reader10.close();


        } catch (FileNotFoundException e) {
            System.out.println("An error occurred.");
            e.printStackTrace();
        }
    }

    public static void main(String[] args) throws IOException {
        int areaLimit = Integer.parseInt(args[0]);
        String fileDirectory = args[1];

        ArrayList<Integer> islandUGs = new ArrayList<>();
        String regionFile = args[4];
        File island = new File("subregions/"+regionFile);
        Scanner islandReader = new Scanner(island);
        while (islandReader.hasNextLine()) {
            islandUGs.add(Integer.parseInt(islandReader.nextLine()));
        }

        islandReader.close();

        String criterion = args[3];

        /*Set Flags
        0-woodYield
        1-Soil Loss
        2-Perc_r
        3-Biodiversity
        4-Cashflow
        5-Carbon Stock
        6-NPV
        7-Perc_rait
        8-R
        9-Rait
        10-Sbiom
         */

        String[] varNames = new String[]{"Crit0","Crit1","Crit2","Crit3","Crit4","Crit5","Crit6","Crit7","Crit8","Crit9","Crit10"};
        ArrayList<Boolean> flags = new ArrayList<>();

        for(int i = 0; i < 11; i++) {
            flags.add(false);
        }

        int toOptimizeLen = 0;
        for(int i = 5; i < args.length; i++) {
            flags.set(Integer.parseInt(args[i]), true);
            toOptimizeLen++;
        }

        Model m = new Model("Forest Management");

        System.out.println("Reading Input Files");
        BufferedReader reader = new BufferedReader(new FileReader(fileDirectory + "/ugs_init.txt"));

        int nUgs = 0;
        while (reader.readLine() != null) nUgs++;
        reader.close();

        UG[] nodes = new UG[nUgs];
        //if 0 ignore
        int minBorder = Integer.parseInt(args[2]);
        UG.setupInternalIds(nodes, fileDirectory);
        if(minBorder <= 0)
            UG.fillArray(nodes, fileDirectory, 0, flags);
        else
            UG.fillArray(nodes, fileDirectory, minBorder, flags);

        for(int i = 0; i < nodes.length; i++){
            if(islandUGs.contains(nodes[i].externalId)){
                nodes[i].valid = true;
            }
        }

        IntVar[] ugs = new IntVar[nUgs]; // same for the constraint variable array


        IntVar[] crit0 = new IntVar[nUgs];

        IntVar[] crit1 = new IntVar[nUgs];

        IntVar[] crit2 = new IntVar[nUgs];

        IntVar[] crit3 = new IntVar[nUgs];
        IntVar[] crit4 = new IntVar[nUgs];
        IntVar[] crit5 = new IntVar[nUgs];
        IntVar[] crit6 = new IntVar[nUgs];
        IntVar[] crit7 = new IntVar[nUgs];
        IntVar[] crit8 = new IntVar[nUgs];
        IntVar[] crit9 = new IntVar[nUgs];
        IntVar[] crit10 = new IntVar[nUgs];

        giveDomains(m, ugs, fileDirectory, crit0, crit1, crit2, crit3, crit4, crit5, crit6,
                crit7, crit8, crit9, crit10, nodes, flags); // reads the ugs_init file and initializes each variable with its possible prescription values as domain


        System.out.println("Setting up Constraints");


        for(int ugIndex = 0; ugIndex < nodes.length; ugIndex++) { //loops through every UG
            //the propagator takes as parameters the index of the UG we are starting out from
            //the nodes with all the info, the constraint variable array and the area limit
            if(nodes[ugIndex].valid && !nodes[ugIndex].noAdjacencies) {
                new Constraint("Area Limit Constraint", new CustomPropagatorFloat(ugIndex, nodes, ugs, areaLimit)).post();
            }
        }

        for(int i = 0; i < nodes.length; i++){
            if(nodes[i].valid) {

                IntVar prescIndex = m.intVar(0, nodes[i].presc.length);

                m.element(ugs[i], nodes[i].presc, prescIndex).post();

                if(flags.get(0))    m.element(crit0[i], nodes[i].crit0, prescIndex).post();
                else    m.arithm(crit0[i], "=", 0).post();
                if(flags.get(1))    m.element(crit1[i], nodes[i].crit1, prescIndex).post();
                else    m.arithm(crit1[i], "=", 0).post();
                if(flags.get(2))    m.element(crit2[i], nodes[i].crit2, prescIndex).post();
                else    m.arithm(crit2[i], "=", 0).post();
                if(flags.get(3))    m.element(crit3[i], nodes[i].crit3, prescIndex).post();
                else    m.arithm(crit3[i], "=",0).post();
                if(flags.get(4))    m.element(crit4[i], nodes[i].crit4, prescIndex).post();
                else    m.arithm(crit4[i], "=",0).post();
                if(flags.get(5))    m.element(crit5[i], nodes[i].crit5, prescIndex).post();
                else    m.arithm(crit5[i], "=",0).post();
                if(flags.get(6))    m.element(crit6[i], nodes[i].crit6, prescIndex).post();
                else    m.arithm(crit6[i], "=",0).post();
                if(flags.get(7))    m.element(crit7[i], nodes[i].crit7, prescIndex).post();
                else    m.arithm(crit7[i], "=",0).post();
                if(flags.get(8))    m.element(crit8[i], nodes[i].crit8, prescIndex).post();
                else    m.arithm(crit8[i], "=",0).post();
                if(flags.get(9))    m.element(crit9[i], nodes[i].crit9, prescIndex).post();
                else    m.arithm(crit9[i], "=",0).post();
                if(flags.get(10))   m.element(crit10[i], nodes[i].crit10, prescIndex).post();
                else    m.arithm(crit10[i], "=",0).post();


            }

            else{
                m.arithm(crit0[i], "=", 0).post();
                m.arithm(crit1[i], "=", 0).post();
                m.arithm(crit2[i], "=", 0).post();

                m.arithm(crit3[i], "=",0).post();
                m.arithm(crit4[i], "=",0).post();
                m.arithm(crit5[i], "=",0).post();
                m.arithm(crit6[i], "=",0).post();
                m.arithm(crit7[i], "=",0).post();
                m.arithm(crit8[i], "=",0).post();
                m.arithm(crit9[i], "=",0).post();
                m.arithm(crit10[i], "=",0).post();


            }
        }

        IntVar sum0 = m.intVar("CRIT0_SUM",-99999999, 99999999);
        IntVar sum1 = m.intVar("CRIT1_SUM", -99999999, 99999999);

        IntVar sum2 = m.intVar("CRIT2_SUM", -99999999, 99999999);
        IntVar sum3 = m.intVar("CRIT3_SUM", -99999999, 99999999);
        IntVar sum4 = m.intVar("CRIT4_SUM", -99999999, 99999999);
        IntVar sum5 = m.intVar("CRIT5_SUM", -99999999, 99999999);
        IntVar sum6 = m.intVar("CRIT6_SUM", -99999999, 99999999);
        IntVar sum7 = m.intVar("CRIT7_SUM", -99999999, 99999999);
        IntVar sum8 = m.intVar("CRIT8_SUM", -99999999, 99999999);
        IntVar sum9 = m.intVar("CRIT9_SUM", -99999999, 99999999);
        IntVar sum10 = m.intVar("CRIT10_SUM", -99999999, 99999999);


        if(flags.get(0))
            m.sum(crit0,"=", sum0).post();
        if(flags.get(1))
            m.sum(crit1,"=", sum1).post();
        if(flags.get(2))
            m.sum(crit2,"=", sum2).post();
        if(flags.get(3))
            m.sum(crit3, "=", sum3).post();
        if(flags.get(4))
            m.sum(crit4, "=", sum4).post();
        if(flags.get(5))
            m.sum(crit5, "=", sum5).post();
        if(flags.get(6))
            m.sum(crit6, "=", sum6).post();
        if(flags.get(7))
            m.sum(crit7, "=", sum7).post();
        if(flags.get(8))
            m.sum(crit8, "=", sum8).post();
        if(flags.get(9))
            m.sum(crit9, "=", sum9).post();
        if(flags.get(10))
            m.sum(crit10, "=", sum10).post();


        IntVar[] toOptimize = new IntVar[toOptimizeLen];
        IntVar[] allSums = new IntVar[]{sum0, sum1, sum2, sum3,sum4,sum5,sum6,sum7,sum8,sum9,sum10};
        IntVar[][] allTotals = new IntVar[][]{crit0, crit1,crit2,crit3,crit4,crit5,crit6,crit7,crit8,crit9,crit10};


        FileWriter pairCrits;


        // Single Criterion Optimization
        if(criterion.equalsIgnoreCase("single")) {

            pairCrits = new FileWriter("Results/"+regionFile+"-SingleSolutionDetails.csv");

            int singleFlag = Integer.parseInt(args[5]);

            switch(singleFlag) {
                case 0:
                    m.setObjective(Model.MAXIMIZE, sum0);
                    break;
                case 1:
                    m.setObjective(Model.MAXIMIZE, sum1);
                    break;
                case 2:
                    m.setObjective(Model.MAXIMIZE, sum2);
                    break;
                case 3:
                    m.setObjective(Model.MAXIMIZE, sum3);
                    break;
                case 4:
                    m.setObjective(Model.MAXIMIZE, sum4);
                    break;
                case 5:
                    m.setObjective(Model.MAXIMIZE, sum5);
                    break;
                case 6:
                    m.setObjective(Model.MAXIMIZE, sum6);
                    break;
                case 7:
                    m.setObjective(Model.MAXIMIZE, sum7);
                    break;
                case 8:
                    m.setObjective(Model.MAXIMIZE, sum8);
                    break;
                case 9:
                    m.setObjective(Model.MAXIMIZE, sum9);
                    break;
                case 10:
                    m.setObjective(Model.MAXIMIZE, sum10);
                    break;
                default:
                    m.setObjective(Model.MAXIMIZE, sum0);}

            Solver s = m.getSolver();

            System.out.println("Running Solver");
            //s.setSearch(Search.minDomUBSearch(ugs));

            //s.setSearch(Search.minDomLBSearch(ugs));
            //s.setSearch(Search.activityBasedSearch(ugs));
            //ParallelPortfolio portfolio = new ParallelPortfolio(false);
            //portfolio.stealNogoodsOnRestarts();
            //portfolio.addModel(m);
            s.setSearch(Search.activityBasedSearch(ugs),Search.activityBasedSearch(sum0));
            //portfolio.addModel(m);

            //if(portfolio.solve()){
            if (s.solve()) {
                System.out.println("FOUND OPTIMAL SOLUTION! "+ sum0.getValue());
                FileWriter outputPairs = new FileWriter("Results/"+regionFile+"-SingleSolution.csv");

                for (int i = 0; i < ugs.length; i++) {
                    if (nodes[i].valid) {
                        pairCrits.write(ugs[i] + ", ");

                        for (int j = 0; j < flags.size(); j++) {
                            if (flags.get(j)) {
                                pairCrits.write(allTotals[j][i] + ",");
                            }
                        }
                        pairCrits.write("end\n");

                        outputPairs.write(nodes[i].externalId + "," + ugs[i].getValue() + "\n");
                    }
                }
                outputPairs.close();

                if(flags.get(0))
                    pairCrits.write(sum0.toString()+"\n");
                if(flags.get(1))
                    pairCrits.write(sum1.toString()+"\n");
                if(flags.get(2))
                    pairCrits.write(sum2.toString()+"\n");
                if(flags.get(3))
                    pairCrits.write(sum3.toString()+"\n");
                if(flags.get(4))
                    pairCrits.write(sum4.toString()+"\n");
                if(flags.get(5))
                    pairCrits.write(sum5.toString()+"\n");
                if(flags.get(6))
                    pairCrits.write(sum6.toString()+"\n");
                if(flags.get(7))
                    pairCrits.write(sum7.toString()+"\n");
                if(flags.get(8))
                    pairCrits.write(sum8.toString()+"\n");
                if(flags.get(9))
                    pairCrits.write(sum9.toString()+"\n");
                if(flags.get(10))
                    pairCrits.write(sum10.toString()+"\n");
            }

        }
        else {
            //Multi Criterion with Pareto

            pairCrits = new FileWriter("Results/"+regionFile+"-ParetoSolutionDetails.csv");

            int index = 0;
            for(int i = 0; i<flags.toArray().length; i++){
                if(flags.get(i)){
                    toOptimize[index] = allSums[i];
                    index++;
                }
            }

            ParetoOptimizer po = new ParetoOptimizer(Model.MAXIMIZE, toOptimize);

            Solver solver = m.getSolver();
            //solver.setSearch(Search.activityBasedSearch(ugs));
            //solver.setSearch(Search.minDomUBSearch(ugs));

            //solver.setSearch(Search.activityBasedSearch(toOptimize));
            //solver.setSearch(Search.activityBasedSearch(allSums));
            //solver.setSearch(Search.activityBasedSearch(crit0));
            //solver.setSearch(Search.activityBasedSearch(crit1));
            //solver.setSearch(Search.activityBasedSearch(crit2));


            solver.plugMonitor(po);

            FileWriter nonPareto = new FileWriter("Results/"+regionFile+"-NonParetoPoints.csv");
            for (int i = 0; i < flags.size(); i++) {
                if (flags.get(i)) {
                    nonPareto.write(varNames[i]+",");
                }
            }
            nonPareto.write("end\n");

            FileWriter allSolutionPairs = new FileWriter("Results/"+regionFile+"-AllSolutions.csv");
            FileWriter timesFile = new FileWriter("Results/"+regionFile+"-Times.csv");

            //BufferedWriter out = new BufferedWriter(allSolutionPairs);
            System.out.println("Running Solver");

            // optimization
            //(System.currentTimeMillis()-startTime)<18000000
            //8 hours  28800000
            //12 hours 43200000
            //13 hours 46800000
            //14 hours 50400000


            int l = 1;
            long startTime = System.currentTimeMillis(); //fetch starting time
            try{
                while(solver.solve() & (System.currentTimeMillis()-startTime)<28800000)
                {
                    for (int i = 0; i < flags.size(); i++) {
                        if(flags.get(i))
                            nonPareto.write(allSums[i].getValue()+",");
                    }
                    nonPareto.write("end\n");

                    allSolutionPairs.write(l+", ");
                    for (int i = 0; i < flags.size(); i++) {
                        if(flags.get(i))
                            allSolutionPairs.write(varNames[i] +":"+ allSums[i].getValue()+",");
                    }
                    allSolutionPairs.write("end\n");

                    for(int i = 0; i < nodes.length; i++){
                        if(nodes[i].valid){
                        allSolutionPairs.write(nodes[i].externalId+","+ugs[i].getValue()+"\n");
                        }
                    }

                    timesFile.write((System.currentTimeMillis()-startTime)+"\n");

                    allSolutionPairs.flush();
                    nonPareto.flush();
                    System.out.println("Found solution-" + l);
                    l++;
                }
            }
            catch (OutOfMemoryError e){
                pairCrits.write("Reached Exception after "+(System.currentTimeMillis()-startTime)+" milliseconds");
            }

            System.out.println("Here");

            timesFile.close();

            nonPareto.close();
            allSolutionPairs.close();

            List<Solution> paretoFront = po.getParetoFront();

            pairCrits.write("The pareto front has " + paretoFront.size() + " solutions : ");
            FileWriter outputPairs = new FileWriter("Results/"+regionFile+"-ParetoSolutions.csv");

            FileWriter pareto = new FileWriter("Results/"+regionFile+"-ParetoPoints.csv");

            for (int i = 0; i < flags.size(); i++) {
                if (flags.get(i)) {
                    pareto.write(varNames[i]+",");
                }
            }

            pareto.write("end\n");

            int l2 = 1;
            for (Solution so : paretoFront) {

                for (int i = 0; i < flags.size(); i++) {
                    if (flags.get(i))
                        pairCrits.write(varNames[i]+"="+so.getIntVal(allSums[i])+",");
                }
                pairCrits.write("end\n");

                outputPairs.write("Pareto Solution: " + l2+",");
                for (int i = 0; i < flags.size(); i++) {
                    if (flags.get(i))
                        outputPairs.write(varNames[i]+":"+so.getIntVal(allSums[i])+",");
                }

                outputPairs.write("end\n");

                for (int i = 0; i < ugs.length; i++) {
                    if (nodes[i].valid) {

                        pairCrits.write("UG_"+i+"="+so.getIntVal(ugs[i])+", ");

                        for (int j = 0; j < flags.size(); j++) {
                            if (flags.get(j))
                                pairCrits.write(varNames[j]+":"+so.getIntVal(allTotals[j][i])+",");
                        }
                        pairCrits.write("end\n");

                        outputPairs.write(nodes[i].externalId + "," +so.getIntVal(ugs[i])  + "\n");
                    }
                }

                for (int i = 0; i < flags.size(); i++) {
                    if(flags.get(i))
                        pareto.write(so.getIntVal(allSums[i])+",");
                }
                pareto.write("end\n");


                l2++;
            }
            outputPairs.close();
            pareto.close();
            pairCrits.write(l + " solutions");
        }

        pairCrits.close();

    }
}