package dk.thoerup.traininfoservice;

import java.io.IOException;
import java.sql.SQLException;
import java.util.Random;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;


public class TestServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;
	
	Random r = new Random();

	//South-West corner= 54.0, 7.0
	//North-East corner= 58.0, 13.0
	//Latitude span=4.0
	//Longitude span=6.0
	void testFindNearest(int count) throws SQLException {		

		StationDAO db = new StationDAO();


		for (int i=0; i<count; i++) {
			float lat = (r.nextFloat()*4.0F) + 54.0F;
			float lng = (r.nextFloat()*6.0F) + 7.0F;
			db.getByLocation(lat, lng);
		}



	}

	void testFindName(int count)  throws SQLException {
		
		StationDAO db = new StationDAO();
		
		for (int i=0; i<count; i++) {
			char c1 = ((char)r.nextInt(26));
			c1 += 'a';
			char c2 = ((char)r.nextInt(26)) ;
			c2 += 'a';

			String search = "" + c1 + c2;
			System.out.println(search);
			
			db.getByName(search);
		}
	}
	
	void testFindFavorites(int count)  throws SQLException {
		
		StationDAO db = new StationDAO();
		
		for (int i=0; i<count; i++) {
			final int MAX = 8;
			
			StringBuilder sb = new StringBuilder();
			sb.append('(');
			for (int j=0; j<MAX;j++) {
				if (j>0)
					sb.append(',');
				sb.append(r.nextInt(400));
			}
			sb.append(')');


			db.getByList(sb.toString());
		}
	}

	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		
		
		String test = request.getParameter("test");
		String strCount = request.getParameter("count");
		int count = Integer.parseInt(strCount);
		
	
		try {			
			long start = System.currentTimeMillis();
			
			if ( test.equals("name") ) {
				testFindName(count);
			} else if ( test.equals("nearest") ) {
				testFindNearest(count);
			} else if ( test.equals("favorites") ) {
				testFindFavorites(count);
			} else {
				throw new ServletException("No parameter test");
			}
			
			long stop = System.currentTimeMillis();

			long elapsed = stop-start;

			float avg = ((float)elapsed) / count;

			String out = "Count=" + count + "\n" +  				 
			"Elapsed=" + elapsed + "\n" +
			"Avg.=" +  avg;

			response.getWriter().print( out );


		} catch (Exception e) {
			throw new ServletException(e);
		}
	}

}