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

/**
 * PastGames Class
 * - Saves and gets back data from past matches
 * @author Akbar Sherwani
 * @date 22nd Decemeber
 * @version 0.1
 */

public class PastGames {

	private HashMap<String, Matches> games; // Hashmap of last games

	public PastGames() throws FileNotFoundException
	{
		games = new HashMap<String, Matches>();
		checkSaved();

	}

	public static void main(String[] args) throws FileNotFoundException {
		new PastGames();
	}

	/**
	 * checkSaved
	 * Checks if file with past games is there otherwise creates it
	 * @throws FileNotFoundException 
	 */

	public void checkSaved() throws FileNotFoundException
	{
		try
		{
			File dir = new File("Past Games");
			dir.mkdir();
			File file = new File(dir, "gamedata.dat");
			BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(file)));
			String line = "";
			while((line = br.readLine()) != null) {
				// match result save to arraylist
				getMatch(line);
				// System.out.println(line);
			}

		}
		// Catches any error conditions
		catch (IOException e)
		{
//			// No File exists
//			File dir = new File("Past Games");
//			dir.mkdir();
//			File file = new File(dir, "gamedata.dat");
//			PrintWriter out = new PrintWriter(new FileOutputStream(file));
//			out.println("");
//			out.close();

		}


	}

	/**
	 * getMatch
	 * gets the indivudual match details
	 * @param line String from file
	 */

	public void getMatch(String line)
	{
		int split = line.indexOf(",");
		String wteam = line.substring(0, split);
		line = line.substring(split + 1);
		split = line.indexOf(",");
		String lteam = line.substring(0, split);
		line = line.substring(split + 1);
		split = line.indexOf("$");
		String smargin = line.substring(0, split);

		int margin = Integer.parseInt(smargin);
		// System.out.println(wteam + " won by " + margin + " against " + lteam);
		Matches a = new Matches(wteam,lteam, margin);
		String name = wteam + lteam;
		games.put(name, a);
	}

	/**
	 * saveMatch
	 * Saves the indivudual match details
	 * @param wteam winning team string
	 * @param lteam losing team string
	 * @param margin int margin won by
	 */

	public void saveMatch(String wteam, String lteam, int margin)
	{

		PrintWriter out;
		try 
		{
			File dir = new File("Past Games");
			dir.mkdir();
			File file = new File(dir, "gamedata.dat");
			out = new PrintWriter(new FileOutputStream(file));
			out.println(wteam +"," + lteam + "," + margin + "$");
			out.close();
		} 
		catch (FileNotFoundException e) 
		{
			e.printStackTrace();
		}

	}

	/**
	 * getMacthes
	 * @param team
	 * @return Matches
	 */

	public Matches getResult(String teams)
	{
		return games.get(teams);
	}
}