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package com.mycompany.colorattributingpoc;

import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.List;
import java.util.Map.Entry;
import java.util.Random;

/**
 *
 * @author kenrik
 */
public class Main {

    public static void main(String[] args) {

        List<DataBean> beans = new ArrayList<>();
        Random r = new Random();
        for (int i = 0; i < 683; i++) {
            beans.add(new DataBean(r.nextInt(100)));
        }

        for (DataBean bean : beans) {
            System.out.println(bean);
        }

        int lowest = beans.stream()
                .min(Comparator.comparing(i -> i.getCluster())).get().getCluster();

        int highest = beans.stream()
                .max(Comparator.comparing(i -> i.getCluster())).get().getCluster();

        System.out.println("Highest in list: " + highest);
        System.out.println("Lowest in list: " + lowest);

        Collections.sort(beans);

        beans.stream().forEach(bean -> {
            bean.setRelative(roundOff((double) 100 / (beans.size() - 1) * beans.indexOf(bean)));
        });

        System.out.println("");
        System.out.println("---------Sort 'n Roll!---------");
        System.out.println("");

        for (DataBean bean : beans) {
            System.out.println(bean);
        }

        StringBuilder sb = new StringBuilder("[");
        for (DataBean bean : beans) {
            sb.append(bean.getCluster());
            sb.append(": ");
            sb.append(bean.getRelative());
            sb.append(", ");
        }

        sb.append("]");
        System.out.println(sb.toString());

    }

    private static double roundOff(double orig) {
        BigDecimal a = new BigDecimal(orig);
        BigDecimal roundOff = a.setScale(2, BigDecimal.ROUND_HALF_EVEN);

        return roundOff.doubleValue();
    }

    static class DataBean implements Comparable<DataBean> {

        private int cluster;
        private double relative;

        public DataBean(int cluster) {
            this.cluster = cluster;
        }

        public int getCluster() {
            return cluster;
        }

        public void setCluster(int cluster) {
            this.cluster = cluster;
        }

        public double getRelative() {
            return relative;
        }

        public void setRelative(double relative) {
            this.relative = relative;
        }

        @Override
        public String toString() {
            return "DataBean{" + "cluster=" + cluster + ", \trelative=" + relative + '}';
        }

        @Override
        public int compareTo(DataBean o) {
            return this.getCluster() - o.getCluster();
        }

    }

}