public class Pokedex implements PokedexInterface{
    public Pokedex(int size) {
        int length = size;
    }
    private ArrayList<Pokemon> pokemon = new ArrayList();
    public String[] listPokemon() {
        if (pokemon.size()> 0){
            ArrayList<String> species = new ArrayList();
            for (int i = 0; i < pokemon.size(); i++) {
            species.add(pokemon.get(i).getSpecies());
            }
            String pokedex[] = species.toArray(new String[0]);
            return pokedex;
        }
        else {
            return null;
        }
    }
    public boolean addPokemon(String species) {
        Pokemon next_pokemon = new Pokemon(species);
        if (pokemon.size() == XXXX){
            return false;
        }
        for (int i = 0; i < pokemon.size(); i++) {
            if (species.equalsIgnoreCase(pokemon.get(i).getSpecies())) {
                System.out.println("Duplicate");
                return false;
            }
        }
        pokemon.add(next_pokemon);
        return true;
    }
    public int[] checkStats(String species) {
        int[] arr = new int[3];
        for (int i = 0; i < pokemon.size(); i++) {
            if (species.equalsIgnoreCase(pokemon.get(i).getSpecies())) {
                arr[0] = pokemon.get(i).getAttack();
                arr[1] = pokemon.get(i).getDefense();
                arr[2] = pokemon.get(i).getSpeed();
                System.out.println();
                System.out.println("The stats for " + species + " are:");
                System.out.println("Attack: " + arr[0]);
                System.out.println("Defense: " + arr[1]);
                System.out.println("Speed: " + arr[2]);
                return arr;
            }
        }
        System.out.println("Missing");
        System.out.println();
        return null;
    }
    public void sortPokedex() {
        for (int i = 0; i < pokemon.size() - 1; i++) {
            for (int j = 0; j < pokemon.size() - 1; j++) {
                if (pokemon.get(j + 1).getSpecies().compareToIgnoreCase(pokemon.get(j).getSpecies()) < 0) {
                    Collections.swap(pokemon, j, j + 1);
                    listPokemon();
                }
            }
        }
    }
    public boolean evolvePokemon(String species) {
        String evo = species;
        for (int i = 0; i < pokemon.size(); ++i) {
            if (pokemon.get(i) != null) {
                if (pokemon.get(i).getSpecies().equalsIgnoreCase(species)) {
                    pokemon.get(i).evolve();
                    System.out.println(evo + " has evolved!");
                    return true;
                }
            }
        }
        System.out.println("Missing");
        return false;
    }
}