import java.util.Scanner;
import java.io.File;
import java.util.Iterator;

public class Pokedex implements Iterable<Pokemon>{

	public static void main(String[] args) {
		System.out.println("Hei jeg er main!");
		
		Pokedex pokedex = new Pokedex();
		pokedex.lesInnFraFil("PokemonList.csv");
		/*
		for (Pokemon pokemon : pokedex) {
			if (pokemon.getDexnr() <= 151){ 
				pokemon.prettyPrint();
			}
		}
		*/
		pokedex.skrivUtBaklengs();
	}

	//PokeNode forste = null;
	PokeNode forste;
	PokeNode siste;
	
	public void skrivUtBaklengs() {
		rekursivSkrivUtBaklengs(forste);
	}

	private void rekursivSkrivUtBaklengs(PokeNode denne) {
		if (denne == null) {
			return;
		}

		rekursivSkrivUtBaklengs(denne.neste);
		denne.pokemon.prettyPrint();

	}

	public void skrivUt() {
		rekursivSkrivUt(forste);
	}

	private void rekursivSkrivUt(PokeNode denne) {
		// basis-tilfelle
		// N?R SKAL VI STOPPE?
		if (denne == null){
			return;
		}

		// Logikk-del 
		denne.pokemon.prettyPrint();
		rekursivSkrivUt( denne.neste );


	}	

	public Iterator<Pokemon> iterator() {
		return new MinIterator();
	} 

	private class MinIterator implements Iterator<Pokemon> {

		PokeNode current = forste;

		// next()
		@Override
		public Pokemon next() {
			Pokemon returmonster = current.pokemon;
			current = current.neste;
			return returmonster;
		}

		@Override
		public boolean hasNext() {
			/*
			if (current != null) {
				return true;
			} else {
				return false;
			}
			*/
			return current != null;
		}
		// hasNext()
	}


	// Setter inn en pokemon i listen.
	public void settInnPokemon(Pokemon pokemon) {

		PokeNode nyPokemonNode = new PokeNode(pokemon);

		if (forste == null) {
			forste = nyPokemonNode;
		} else {
			siste.neste = nyPokemonNode;
		}

		siste = nyPokemonNode;

	}

	public void lesInnFraFil(String filnavn) {

		Scanner filScanner = null;

		try {
			filScanner = new Scanner(new File(filnavn));
		} catch (Exception e){
			System.out.println("Filen finnes ikke!");
			System.exit(0);
		}

		filScanner.nextLine();

		while(filScanner.hasNextLine()) {
			String linje = filScanner.nextLine();
			//System.out.println(linje);
			String[] data = linje.split(",");
			data[0] = data[0].replace(" #", "");

			Pokemon nyPokemon = null;

			if (data.length == 3) {
				nyPokemon = new Pokemon(data[0], data[1], data[2]);
			} else if (data.length == 4) {
				nyPokemon = new Pokemon(data[0], data[1], data[2], data[3]);
			}			

			//nyPokemon.prettyPrint();

			settInnPokemon(nyPokemon);

		}
	}




	private class PokeNode {
		public Pokemon pokemon;
		public PokeNode neste;

		public PokeNode(Pokemon pokemon) {
			this.pokemon = pokemon;
		}
	} 
}