Advent-of-Code/src/Day1.java

import java.util.ArrayList;

//Did you know I can't read??. the way I made it allows for any amount of enters.
//this was how ever not part of the asignment ;-;. Now my code is a bit bloated.
//can't say I'm to proud of this code but it does work, there is some hacking here at work.
//in the method that loads the file I add an extra enter. I know how to fix this, but I am just
//too lazy. so remember to read, don't assume anything; just read!!.

public class Day1 {
    private SleighFactory factory;

    public Day1(){
        factory = new SleighFactory();
    }

    public void show(String file){
        Sleight test = factory.parse(file);
        printSleight(test);
    }

    private void printSleight(Sleight sleight){
        System.out.println("total elfs: "+sleight.getElfs());
        System.out.println("most calories: "+sleight.getGreediest()+" amount: "+sleight.getMostCalories());
        for(int i = 0; i < sleight.getElfs(); i++){
            System.out.println("["+i+"] calories: "+sleight.getCalories(i));
        }
    }
}

class SleighFactory {
    private ArrayList<Elf> elfs;
    private int greediestIndex;

    public SleighFactory(){
        elfs = new ArrayList<>();
        reset();
    }

    public Sleight parse(String file){
        parseFile(file);
        Sleight newSleight = new Sleight(elfs, greediestIndex);
        reset();
        return newSleight;
    }

    private void reset(){
        greediestIndex = 0;
        elfs.clear();
    }

    private void parseFile(String file){
        String currentNumber = "";
        int calories = 0;

        for(int i = 0; i < file.length(); i++){
            if(Character.isDigit(file.charAt(i))){
                currentNumber += file.charAt(i);
                continue;
            }

            if(file.charAt(i) == '\n'){
                calories = calcCalories(currentNumber, calories);
                currentNumber = "";
            }
        }
    }

    private int calcCalories(String currentNumber, int currentCalories){
        if(currentNumber != ""){
            return currentCalories + Integer.parseInt(currentNumber);
        }else{
            return newElf(currentCalories);
        }
    }

    private int newElf(int calories){
        if(calories > 0){
            elfs.add(new Elf(calories));
            if(hasMost(elfs.size() -1) == true){
                greediestIndex = elfs.size() -1;
            }
        }
        return 0;
    }

    private boolean hasMost(int elfIndex){
        for(int i = 0; i < elfs.size(); i++){
            if(i != elfIndex){
                if(hasMoreCalories(elfIndex, i) == false){
                    return false;
                }
            }
        }
        return true;
    }

    private boolean hasMoreCalories(int elfA, int elfB){
        int caloriesA = elfs.get(elfA).getTotalCalories();
        int caloriesB = elfs.get(elfB).getTotalCalories();
        if(caloriesA > caloriesB){
            return true;
        }
        return false;
    }

}

class Sleight{
    private ArrayList<Elf> elfs;
    private int greediest;

    public Sleight(ArrayList<Elf> elfs, int greediest){
        this.greediest = greediest;
        this.elfs = new ArrayList<>();
        for(int i = 0; i < elfs.size(); i++){
            this.elfs.add(elfs.get(i));
        }
    }

    public int getGreediest(){
        return greediest;
    }
    public int getMostCalories(){
        return elfs.get(greediest).getTotalCalories();
    }

    public int getCalories(int index){
        if(index >= 0 && index < elfs.size()){
            return elfs.get(index).getTotalCalories();
        }
        return -1;
    }

    public int getElfs(){
        return elfs.size();
    }
}

class Elf {
    private int totalCalories;

    public Elf(int totalCalories){
        this.totalCalories = totalCalories;
    }

    public int getTotalCalories(){
        return totalCalories;
    }
}