using Nemerle.IO;

namespace NSokoban
{
    public class Sokoban
    {
  public static Main (args : array[string]) : void
  {
      if(args.Length != 3)
    System.Console.WriteLine("usage: sokoban LEVELS_FILE LEVEL_NUMBER METHOD");
      else
      {
    //try
    //{
        def Maps = MapCollection (args[0]);
        def x = Maps.Nth(System.Int32.Parse(args[1])-1);
        SMap.Visited = Nemerle.Collections.Hashtable ();
        def (f,r) = 
        match(args[2])
        {
      | "IDFS" => TreeSearch.IDFS(x);
      | "BlindIDFS" => TreeSearch.BlindIDFS(x);
      | "BFS" => TreeSearch.BFS(x);
      | "A*" => TreeSearch.A_Star(x);
      | "IDA*" => TreeSearch.IDA(x);
      | "RBFS" => TreeSearch.RBFS(x);
      | "SA" => LocalSearch.SimulatedAnnealing(x,0.95);
      | m => throw System.Exception("Unknown method: " + m);
        }
     
        if(f)  
      System.Console.WriteLine(Option.UnSome(r).ToString ());
        else
      System.Console.WriteLine("Solution was not found");              
    //}
    /*catch
    {
        e : System.Exception => System.Console.WriteLine(e.Message);
    }*/
      }
  }
    }
}