package com.lifeknight.relaymcbungeemain.utilities;

import java.util.ArrayList;
import java.util.List;

public class Version implements Comparable<Version> {
    private final List<Integer> values = new ArrayList<>();

    public Version(String representation) {
        for (String s : representation.split("\\.")) {
            this.values.add(Integer.parseInt(s));
        }
    }

    public boolean isGreater(Version o) {
        return this.compareTo(o) > 0;
    }

    @Override
    public int compareTo(Version o) {
        int[] home = toPrimitive(this.values.toArray(new Integer[0]));
        int[] other = toPrimitive(o.values.toArray(new Integer[0]));

        for (int i = 0; i < home.length; i++) {
            int v = home[i];

            if (other.length > i) {
                int v1 = other[i];
                if (v > v1) {
                    return 1;
                } else if (v < v1) {
                    return -1;
                }
            } else {
                return 1;
            }
        }

        if (other.length > home.length) {
            return -1;
        }

        return 0;
    }

    private static int[] toPrimitive(Integer[] array) {
        if (array == null) {
            return null;
        } else if (array.length == 0) {
            return new int[0];
        } else {
            int[] result = new int[array.length];

            for(int i = 0; i < array.length; ++i) {
                result[i] = array[i];
            }

            return result;
        }
    }
}