package alvintclam;

import java.io.File;
import java.io.FileOutputStream;
import java.io.PrintWriter;
import java.net.Inet4Address;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.Enumeration;

import javax.servlet.ServletConfig;

import com.amazonaws.util.json.JSONException;
import com.amazonaws.util.json.JSONObject;

import android.os.Environment;

public class SocialVector {
	
	public String saveText(String newJson) {
		ArrayList list = new ArrayList(); 
		JSONObject json;
		try {
			json = new JSONObject(newJson);
			int total = json.getInt("user_number");
			for(int i=0;i<total;i++){
				double sum = 0;
				int items = json.getInt("items");
				for(int j=0;j<items;j++){
					double tmp = json.getDouble("user"+i+"item"+j);
					sum += tmp*tmp;
				}
				double score = Math.sqrt(sum);
				list.add(new MyData(json.getString("items"+i),score));
			}
			Comparator comp = new Comparator() { 
		        public int compare(Object o1, Object o2) { 
		        	MyData p1 = (MyData) o1; 
		        	MyData p2 = (MyData) o2; 
		            if (p1.score < p2.score) 
		                return -1; 
		            else if (p1.score == p2.score) 
		                return 0; 
		            else if (p1.score > p2.score) 
		                return 1; 
		            return 0; 
		        } 
		    }; 
		    Collections.sort(list, comp);
		    JSONObject newjson = new JSONObject();
		    for(int i=0;i<list.size();i++){
		    	newjson.put("item"+i, ((MyData)list.get(i)).score);
		    }
			return newjson.toString();
		} catch (JSONException e1) {
			e1.printStackTrace();
		} 
		
		return "ERROR";
	}
	
	public static class MyData { 
		 
	    private double score; 
	    private String name; 
	 
	    public MyData(String name, double score) { 
	        this.score = score; 
	        this.name = name; 
	    } 
	 
	    public double getScore() { 
	        return score; 
	    } 
	 
	    public void setDouble(double score) { 
	        this.score = score; 
	    } 
	 
	    public String getName() { 
	        return name; 
	    } 
	 
	    public void setName(String name) { 
	        this.name = name; 
	    } 
	}
}