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.engine.data.TSLProcessingResultElement;
import at.gv.egovernment.moa.spss.server.monitoring.ServiceStatusContainer;

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}\"'}'";

  @Override
  public void doGet(HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException {

    if (ServiceStatusContainer.getStatus()) {
      response.setStatus(200);
    } else {
      response.setStatus(500);
    }

    response.setContentType("application/json");
    final 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 = "";
    final List<TSLProcessingResultElement> tslDetailStatus = ServiceStatusContainer.getTslDetailStatus();
    if (tslDetailStatus != null) {
      String detailElements = null;

      for (final TSLProcessingResultElement el : tslDetailStatus) {
        final 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;
  }
}