package at.gv.egovernment.moa.spss.server.service;

import java.io.IOException;
import java.io.PrintWriter;
import java.text.MessageFormat;
import java.util.List;

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

import at.gv.egovernment.moa.sig.tsl.TslClientFactory;
import at.gv.egovernment.moa.sig.tsl.engine.data.TSLProcessingResultElement;
import at.gv.egovernment.moa.spss.server.monitoring.ServiceStatusContainer;
import at.gv.egovernment.moa.spss.tsl.TSLServiceFactory;

public class TSLClientStatusServlet extends HttpServlet {

	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;

	
	public static final String STATUS_RESP = "'{'\"EUTSLStatus\":\"{0}\", \"EUTSLStatusMsg\":\"{1}\"{2}'}'";
	public static final String DETAIL_INFO = ", \"Details\":'{'{0}'}'";
	//public static final String DETAIL_ENTRY = "\"{0}\":'{'\"verified\":\"{1}\", \"processed\":\"{2}\"'}'";
	public static final String DETAIL_ENTRY = "\"{0}\":'{'\"processed\":\"{2}\"'}'";
	
	public void doGet(HttpServletRequest request, HttpServletResponse response)
		    throws ServletException, IOException {
			
		if (ServiceStatusContainer.getStatus()) 
		    response.setStatus(200);
		else 
			response.setStatus(500);
		
		response.setContentType("application/json");
	    PrintWriter out = response.getWriter();
	    out.println(MessageFormat.format(STATUS_RESP, 
	    		new Object[] {
	    				String.valueOf(ServiceStatusContainer.getStatus()),
	    				ServiceStatusContainer.getStatusMsg(),
	    				getTSLClientDetailInfos()
	    		}));
	    out.flush();
	    out.close();
		
	}
	
	private String getTSLClientDetailInfos() {
		String detailInfo = "";
		List<TSLProcessingResultElement> tslDetailStatus = ServiceStatusContainer.getTslDetailStatus();
		if (tslDetailStatus != null) {
			String detailElements = null;
			
			for (TSLProcessingResultElement el : tslDetailStatus) {
				String entry = MessageFormat.format(DETAIL_ENTRY, 
			    		new Object[] {
			    			el.getCountryCode(),
			    			String.valueOf(el.isVerified()),
			    			String.valueOf(el.isProcessed())			    				
			    		});
				if (detailElements == null)
					detailElements = entry;
				else
					detailElements += ", " + entry; 
				
			}
			
			if (detailElements != null)
				detailInfo = MessageFormat.format(DETAIL_INFO, 
						new Object[] {
								detailElements	
		    			});
		}
		
		return detailInfo;		
	}
}