/*
    * Licensed to the Apache Software Foundation (ASF) under one or more
    * contributor license agreements.  See the NOTICE file distributed with
    * this work for additional information regarding copyright ownership.
    * The ASF licenses this file to You under the Apache License, Version 2.0
    * (the "License"); you may not use this file except in compliance with
    * the License.  You may obtain a copy of the License at
    *
    *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.apache.commons.monitoring.reporting.web.plugin.report;
  
  import org.apache.commons.monitoring.MonitoringException;
  import org.apache.commons.monitoring.reporting.web.handler.api.Regex;
  import org.apache.commons.monitoring.reporting.web.handler.api.Template;
  import org.apache.commons.monitoring.reporting.web.plugin.report.format.Format;
  import org.apache.commons.monitoring.repositories.Repository;
  
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  import java.io.IOException;
  
  public class ReportEndpoints {
      @Regex
      public Template html(final HttpServletRequest request, final HttpServletResponse response) {
          return renderFormat(request, response, Format.Defaults.HTML);
      }
  
      @Regex(".csv")
      public Template csv(final HttpServletRequest request, final HttpServletResponse response) {
          return renderFormat(request, response, Format.Defaults.CSV);
      }
  
      @Regex(".json")
      public Template json(final HttpServletRequest request, final HttpServletResponse response) {
          return renderFormat(request, response, Format.Defaults.JSON);
      }
  
      @Regex(".xml")
      public Template xml(final HttpServletRequest request, final HttpServletResponse response) {
          return renderFormat(request, response, Format.Defaults.XML);
      }
  
      @Regex("/clear")
      public void clear(final HttpServletRequest request, final HttpServletResponse response) {
          Repository.INSTANCE.clear();
          try {
              response.sendRedirect(request.getRequestURI().substring(0, request.getRequestURI().length() - "/clear".length()));
          } catch (final IOException e) {
              throw new MonitoringException(e);
          }
      }
  
      private Template renderFormat(final HttpServletRequest request, final HttpServletResponse response, final Format format) {
          response.setContentType(format.type());
          return format.render(request.getParameterMap());
      }
  }