package com.kodegeek.blog.jobsearch.facebook.hoppity;
 
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
 
/**
 * To help test whether your puzzle submissions fit the guidelines, try this simple test puzzle.
 * Your solution must follow the guidelines like any other puzzle.
 * Write a program that takes as input a single argument on the command line.
 * This argument must be a file name, which contains a single positive integer.
 * The program should read this file and obtain the integer within, and then output a sequence of strings
 * based upon the number (details below).
 * @author josevnz@kodegeek.com
 *
 */
public final class Hoppity {
 
	/**
	 * The input file will contain a single positive integer (in base 10) expressed as a string using standard ASCII text
	 * (e.g. for example, the number "15" but without the double quotes).
	 * This number may or may not be padded on either side with white space.
	 * There will be no commas, periods, or any other non-numeric characters present within the number.
	 * The file may or may not terminate in a single new line character ("\n")
	 * @param file file with the number
	 * @return integer
	 * @throws IOException
	 */
	private static int readNumber(File file) throws IOException {
		int aNumber = -1;
		BufferedReader reader = null;
		try {
			reader = new BufferedReader(new FileReader(file));
			// Trim any spaces and then try to parse the number
			aNumber = Integer.parseInt(reader.readLine().replaceAll("\\s*", ""));
		} catch (IOException ioExp) {
			throw ioExp;
		} finally {
			if (reader != null) {
				reader.close();
			}
		}
		return aNumber;
	}
 
	/**
	 * @param args args[0] = Full path to input file
	 */
	public static void main(String[] args) throws Exception {
		if (args != null && args.length == 1 && args[0] != null) {
			File numFile = new File(args[0]);
			if (numFile.exists() && numFile.canRead()) {
				int number = readNumber(numFile);
				for (int i = 1; i < = number; i++) {
					boolean mod3 = i % 3 == 0;
					boolean mod5 = i % 5 == 0;
					if (mod5 && mod3) {
						System.out.println("Hop");
					} else if (mod3) {
						System.out.println("Hoppity");
					} else if (mod5) {
						System.out.println("Hophop");
					} else {
						continue;
					}
				}
			}
		}
		return;
	}
}