05. Dragon Army

package Fundamentals;

import java.util.*;
import java.util.stream.Collectors;

public class Main {

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        int lines = Integer.parseInt(scanner.nextLine());

        List<Dragon> dragons = new ArrayList<>();

        for (int i = 1; i <= lines; i++) {
            String[] dragonData = scanner.nextLine().split(" ");

            String type = dragonData[0];
            String name = dragonData[1];
            int damage = dragonData[2].equals("null") ? 45 : Integer.parseInt(dragonData[2]);
            int health = dragonData[3].equals("null") ? 250 : Integer.parseInt(dragonData[3]);
            int armor = dragonData[4].equals("null") ? 10 : Integer.parseInt(dragonData[4]);

            Dragon newDragon = new Dragon(type, name, damage, health, armor);

            dragons.removeIf(currentDragon -> currentDragon.getType().equals(type) && currentDragon.getName().equals(name));

            dragons.add(newDragon);
        }

        Map<String, List<Dragon>> groupedDragons = dragons.stream().collect(Collectors.groupingBy(Dragon::getType,LinkedHashMap::new, Collectors.toList()));

        for (Map.Entry<String, List<Dragon>> entry : groupedDragons.entrySet()) {
            double avgDamage = entry.getValue().stream().mapToDouble(Dragon::getDamage).average().getAsDouble();
            double avgHealth = entry.getValue().stream().mapToDouble(Dragon::getHealth).average().getAsDouble();
            double avgArmor = entry.getValue().stream().mapToDouble(Dragon::getArmor).average().getAsDouble();
            System.out.printf("%s::(%.2f/%.2f/%.2f)\n", entry.getKey(), avgDamage, avgHealth, avgArmor);
            entry.getValue().sort(Comparator.comparing(Dragon::getName));
            entry.getValue().forEach(e -> System.out.printf("-%s -> damage: %d, health: %d, armor: %d\n", e.getName(), e.getDamage(), e.getHealth(), e.getArmor()));
        }

    }

    static class Dragon {

        String type;
        String name;
        int damage;
        int health;
        int armor;

        public Dragon(String type, String name, int damage, int health, int armor) {
            this.type = type;
            this.name = name;
            this.damage = damage;
            this.health = health;
            this.armor = armor;
        }

        public String getType() {
            return type;
        }

        public String getName() {
            return name;
        }

        public int getDamage() {
            return damage;
        }

        public int getHealth() {
            return health;
        }

        public int getArmor() {
            return armor;
        }

    }

}