import java.util.Scanner;
import java.util.regex.Pattern;
import java.util.regex.Matcher;

class Main {

    static Pattern movePattern = Pattern.compile("move (.*)");

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

        Room roomA = new Room("Ryan's Preferred Room", "With Smash Bros & .io's for days.");
        Room roomB = new Room("Room B", "A barren room......");

        roomA.addExit(new Exit(Exit.Direction.NORTH, roomB));
        roomB.addExit(new Exit(Exit.Direction.SOUTH, roomA));

        // print(roomA.toString());
        // print(roomB.toString());
        Room currentRoom = roomA;

        boolean quit = false;
        while (!quit) {
            printRoom(currentRoom);
            print("==================================");
            print("What do you wanna do?");

            String command = scanner.nextLine();
            print("");

            Matcher moveMatcher = movePattern.matcher(command);

            if (moveMatcher.matches()) {
                String userDirection = moveMatcher.group(1);
                if (isValidDirection(userDirection)) {
                    Exit.Direction direction = Exit.Direction.findDirection(userDirection.toUpperCase());
                    Room destination = currentRoom.getRoomInDirection(direction);
                    currentRoom = destination;
                } else {
                    print(userDirection + " is not a valid direction.");
                }
            } else {
                print("Command not recognized.");
                print("");
            }
        }
    }

    static boolean isValidDirection(String direction) {
        if (direction.equalsIgnoreCase("N") || direction.equalsIgnoreCase("E") || direction.equalsIgnoreCase("S") || direction.equalsIgnoreCase("W")) {
            return true;
        } else {
            return false;
        }
    }

  static void printRoom(Room room) {
      print("");
      print("");
      print("");
      for (int i = 0; i < room.name.length(); i++) {
          System.out.print("=");
      }
      print("");
      print(room.name);
      for (int i = 0; i < room.name.length(); i++) {
          System.out.print("=");
      }
      print("");
      print(room.description);
      print("");
      print("Exits:");
      for (Exit exit : room.exits) {
        print("  " + exit.toString());
      }
  }

  static void print(String output) {
      System.out.println(output);
  }
}