/*
  a driver/test program for the Hotel class
  it instantiates a Hotel and uses the member functions
*/

import java.io.*;

public class Simulation{
    private static String readLine(){
	//because I want to use readLine...
	BufferedReader stdin = new BufferedReader(new InputStreamReader(System.in));

	try{
	    return stdin.readLine();
	}catch(Exception e){}

	return null;
    }

    public static void main(String[] args){
	//instantiate a Hotel
	Hotel h = new Hotel();

	//temp variables we'll need later
	String name, num;
	int roomnum;

	//main loop
	while(true){
	    //display prompt
	    System.out.print("Command: ");
	    System.out.flush();

	    //get input
	    String command = readLine();

	    //user want to quit...
	    if((command == null) || command.equalsIgnoreCase("quit")){
		System.out.println("Good bye");
		break;
	    }

	    //reserve some room
	    if(command.equalsIgnoreCase("reserve")){
		//prompt for name
		System.out.print("Name: ");
		System.out.flush();
		name = readLine();

		roomnum = -1;
		//if we got a good name, try to reserve a room
		if(!((name==null) || (name.equals(""))))
		    roomnum = h.reserveRoom(name);

		//give feedback
		if(roomnum==-1)
		    System.out.println("No reservation for you!");
		else
		    System.out.println(name+" reserved room "+roomnum);
	    }


	    //reserve a particular room
	    if(command.equalsIgnoreCase("reserveN")){
		//prompt for name and room
		System.out.print("Name: ");
		System.out.flush();
		name = readLine();
		System.out.print("Room number: ");
		System.out.flush();
		num = readLine();

		//if we got a bad input, report failure
		if((name==null) || (name.equals("")) || (num==null))
		    roomnum = -1;
		else{
		    //convert the String to an int (and catch any failures)
		    try{
			roomnum = Integer.parseInt(num);
		    }catch(Exception e){
			roomnum = -1;
		    }
		}

		//give feedback
		if(!h.reserveRoom(name, roomnum))
		    System.out.println("No reservation for you!");
		else
		    System.out.println(name+" reserved room "+roomnum);
	    }

	    //cancel someone's reservation(s)
	    else if(command.equalsIgnoreCase("cancel")){
		//prompt for name
		System.out.print("Name: ");
		System.out.flush();
		name = readLine();

		//if we got a good name, cancel their reservations
		if(!((name==null) || (name.equals("")))){
		    h.cancelReservations(name);
		    System.out.println(name+" now has no reservations.");
		}else{
		    System.out.println("Who?");
		}
	    }

	    //print out all reservations
	    else if(command.equalsIgnoreCase("print")){
		h.printReservations();
	    }

	    //build more rooms
	    else if(command.equalsIgnoreCase("build")){
		//prompt for the number
		System.out.print("How many: ");
		System.out.flush();
		num = readLine();

		//convert to an int
		roomnum = -1;
		if(num!=null){
		    try{
			roomnum = Integer.parseInt(num);
		    }catch(Exception e){
			roomnum = -1;
		    }
		}

		//add the rooms
		if(h.buildRooms(roomnum))
		    System.out.println("Added "+roomnum+" more rooms");
		else
		    System.out.println("No more rooms for you");
	    }


	    //invalid command... display available commands
	    else{
		System.out.println("Available commands:");
		System.out.println("print - show all reservations");
		System.out.println("reserve - reserve a room for someone");
		System.out.println("reserveN - reserve a particular room");
		System.out.println("cancel - cancel someone's reservations");
		System.out.println("build - build some more rooms for the hotel");
	    }
	}
    }
}