import java.io.*;
import java.util.*;

public class LesFil{
File fil;

  LesFil(String filnavn){
    fil = new File(filnavn);
  }

  public Savanne<Dyr> lesFil() throws FileNotFoundException{
    Savanne<Dyr> nySavanne = new Savanne<Dyr>();
    Scanner sc = new Scanner(fil);
    String line = sc.nextLine();
    boolean done = false;
    while(!done){
      System.out.println(line);
      if(line == null){
        System.out.println("Ferdig aa lese fil");
        return nySavanne;
      }

      if(line.startsWith("#")){
        System.out.println(line.substring(1));
        switch (line.substring(1)){
          case "gaselle":
            line = leggTilGaselle(sc, nySavanne);
            break;
          case "gnu":
            line = leggTilGnu(sc, nySavanne);
            break;
          case "love":
            line = leggTilLove(sc, nySavanne);
            break;
          case "villsvin":
            line = leggTilVillsvin(sc, nySavanne);
            break;
          case "marekatt":
            line = leggTilMarekatt(sc, nySavanne);
            break;
          default:
            done = true;
          }
        }
      }
      System.out.println("Ferdig aa lese fil");
      return nySavanne;
  }

  public String leggTilGaselle(Scanner sc, Savanne<Dyr> savanne){
    String line = sc.nextLine();
    while(!line.startsWith("#")){
      Gaselle g = new Gaselle(line);
      System.out.println("Legger til gasellen " + g.navn);
      savanne.leggTil(g);
      line = sc.nextLine();
    }
    return line;
  }

  public String leggTilGnu(Scanner sc, Savanne<Dyr> savanne){
    String line = sc.nextLine();
    while(!line.startsWith("#")){
      Gnu g = new Gnu(line);
      System.out.println("Legger til gnuen " + g.navn);
      savanne.leggTil(g);

      if(!sc.hasNextLine())
        return null;

      line = sc.nextLine();
    }
    return line;
  }
  
  public String leggTilVillsvin(Scanner sc, Savanne<Dyr> savanne){
    String line = sc.nextLine();
    while(!line.startsWith("#")){
      Villsvin g = new Villsvin(line);
      System.out.println("Legger til villsvinet " + g.navn);
      savanne.leggTil(g);
      line = sc.nextLine();
    }
    return line;
  }

  public String leggTilMarekatt(Scanner sc, Savanne<Dyr> savanne){
    String line = sc.nextLine();
    while(!line.startsWith("#")){
      Marekatt g = new Marekatt(line);
      System.out.println("Legger til marekatten " + g.navn);
      savanne.leggTil(g);
      line = sc.nextLine();
    }
    return line;
  }

  public String leggTilLove(Scanner sc, Savanne<Dyr> savanne){
    String line = sc.nextLine();
    System.out.println("LINE: " + line);

    while(!line.startsWith("#")){
      Love g = new Love(line);
      System.out.println("Legger til loven " + g.navn);
      savanne.leggTil(g);
      if(sc.hasNext()){
        line = sc.nextLine();
      }else{
        return null;
      }
    }
    return line;
  }

//MER
}