package dk.daoas.daoadresseservice.admin;

import java.io.IOException;
import java.io.PrintWriter;
import java.net.URLEncoder;

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

import dk.daoas.daoadresseservice.AddressSearch;
import dk.daoas.daoadresseservice.beans.Address;

/**
 * Servlet implementation class CsvUdtraek
 */
@WebServlet("/CsvUdtraek")
public class CsvUdtraek extends HttpServlet {
	private static final long serialVersionUID = 1L;

	
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		String type = request.getParameter("type");		
		String str = null;
		
		if (type != null) {
			switch( type ) {
			case "ikkedaekket":
				str = udtraekIkkeDaekket();
				break;
			default:
				str = null; 
				break;
			}
		}
		
		if (str != null) {
			type = URLEncoder.encode(type, "UTF-8");
			response.setContentType("text/csv");
			response.setHeader("Content-Disposition", "filename=" + type + ".csv");
			response.getWriter().print(str);
		} else {
			PrintWriter w = response.getWriter();
			response.setContentType("text/html");
			w.print("Type parameter is blank or invalid value<br>");
			w.print("Type: <a href='CsvUdtraek?type=ikkedaekket'>ikkedaekket</a> <br>");
		}
	}
	
	/* *******************************************
	 * 
	 */
	private String udtraekIkkeDaekket() {
		AddressSearch search = (AddressSearch) getServletContext().getAttribute("search");
		if (search == null) {
			return "data struktur ikke indlæst";
		}
		
		StringBuilder sb = new StringBuilder();
		sb.append("gadeid;postnr;vejnavn;husnr;husnrbogstav;distributor\r\n");
		
		for (Address addr : search.getNonCoveredAddresses() ) {
			sb.append( addr.gadeid ).append(";")
				.append( addr.postnr ).append(";")
				.append( addr.vejnavn ).append(";")
				.append( addr.husnr ).append(";")
				.append( addr.husnrbogstav ).append(";")
				.append( addr.distributor != null ? addr.distributor : "" )				
				.append( "\n" );
		}
		
		return sb.toString();
	}
	

}