package uprapham;

import java.io.BufferedWriter;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.FileWriter;
import java.util.ArrayList;


public class itemsBean {
	
	private static int idGenerator = 1;
	//private static String datafile = "/Applications/apache-tomcat-6.0.41/webapps/swe432/WEB-INF/data/uprapham/data.txt";
	private static String datafile = "/data/apps-swe432/swe432/WEB-INF/data/uprapham/data.txt";
	
	public itemsBean()
	{
	}
	
	public static String addBid(String id, String desc, String bid, String bidder)
	{
		try{
			BufferedReader fileIn = new BufferedReader(new FileReader(datafile));
			String line = null;
			String result = "";
			boolean found = false;
			
			//update the existing line if necessary
			while ((line=fileIn.readLine()) != null){
				String[] pieces = line.split(",");
				
				if (id != null && bid != null && bidder != null && pieces[0].equals(id)){
					if (Integer.parseInt(bid) > Integer.parseInt(pieces[2])){
						found = true;
						if( !pieces[4].equals(bidder))
							line = pieces[0]+","+pieces[1]+","+bid+","+bidder+","+pieces[4];
						else
							return "<p>Sorry, you can't bid on your own item, "+bidder+"!</p>";
					}
					else
						return "<p>Sorry, you can't bid with a lower amount, "+bidder+"!</p>";
				}

				result += line+"\n";
			}
			fileIn.close();
			
			//add a new item to the end if necessary
			if (!found)
				result += ++idGenerator + "," + desc + "," + bid + "," + bidder + "," + bidder + "\n";
			
			BufferedWriter fileOut = new BufferedWriter(new FileWriter(datafile));
			fileOut.append(result);
			fileOut.close();
			
			if (found)
				return "<p>Congratulations, "+bidder+", you have the highest bid!</p>";
			else
				return "<p>New item, [" + desc+ "] id[" + id + "] recorded for "+bidder+" with bid "+bid+"</p>";
		}catch (Exception e){
			return "<p>Error: database file not found when trying to bid!</p>";
		}		
		
	}
	

	public String getCurrentItems(){
		/*
		 * Example data file:
		 * 
		 * ID,description,maxBid,maxBidder,creator
		 * 1,dresser,500,jDoe,upsorn
		 */
		try{
			BufferedReader file = new BufferedReader(new FileReader(datafile));
			String line = null;
			ArrayList<String> items = new ArrayList<String>();
			String result = "<ul>";
			while ((line=file.readLine()) != null){
				String[] pieces = line.split(",");
				result += "<li><input type=\"radio\" name=\"bidOn\" value=\""+pieces[0]+"\">";
				result += pieces[1]+": current max bid is: "+pieces[2]+". Original seller: "+pieces[4]+"</li>";
			}
			file.close();
			return result+"</ul>";
		}catch (Exception e){
			return "<p>Error: database file not found!</p>";
		}
	}	
	
}