/*
    * 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.logging.log4j.core.config.builder.impl;
  
  import org.apache.logging.log4j.core.config.AbstractConfiguration;
  import org.apache.logging.log4j.core.config.ConfigurationSource;
  import org.apache.logging.log4j.core.config.FileConfigurationMonitor;
  import org.apache.logging.log4j.core.config.Node;
  import org.apache.logging.log4j.core.config.Reconfigurable;
  import org.apache.logging.log4j.core.config.builder.api.Component;
  import org.apache.logging.log4j.core.config.plugins.util.PluginManager;
  import org.apache.logging.log4j.core.config.plugins.util.PluginType;
  import org.apache.logging.log4j.core.config.plugins.util.ResolverUtil;
  import org.apache.logging.log4j.core.config.status.StatusConfiguration;
  import org.apache.logging.log4j.core.util.Patterns;
  
  import java.io.File;
  import java.io.IOException;
  import java.io.InputStream;
  import java.util.Arrays;
  import java.util.List;
  
  /**
   * This is the general version of the Configuration created by the Builder. It may be extended to
   * enhance its functionality.
   */
  public class BuiltConfiguration extends AbstractConfiguration {
      private static final long serialVersionUID = -3071897330997405132L;
      private static final String[] VERBOSE_CLASSES = new String[] { ResolverUtil.class.getName() };
      private final StatusConfiguration statusConfig;
      protected Component root;
      private Component loggersComponent;
      private Component appendersComponent;
      private Component filtersComponent;
      private Component propertiesComponent;
      private Component customLevelsComponent;
      private String contentType = "text";
  
      public BuiltConfiguration(final ConfigurationSource source, final Component rootComponent) {
          super(source);
          statusConfig = new StatusConfiguration().withVerboseClasses(VERBOSE_CLASSES).withStatus(getDefaultStatus());
          for (final Component component : rootComponent.getComponents()) {
              switch (component.getPluginType()) {
                  case "Loggers": {
                      loggersComponent = component;
                      break;
                  }
                  case "Appenders": {
                      appendersComponent = component;
                      break;
                  }
                  case "Filters": {
                      filtersComponent = component;
                      break;
                  }
                  case "Properties": {
                      propertiesComponent = component;
                      break;
                  }
                  case "CustomLevels": {
                      customLevelsComponent = component;
                      break;
                  }
              }
          }
          root = rootComponent;
      }
  
      @Override
      public void setup() {
          final List<Node> children = rootNode.getChildren();
          if (propertiesComponent.getComponents().size() > 0) {
              children.add(convertToNode(rootNode, propertiesComponent));
          }
          if (customLevelsComponent.getComponents().size() > 0) {
              children.add(convertToNode(rootNode, customLevelsComponent));
          }
          children.add(convertToNode(rootNode, loggersComponent));
          children.add(convertToNode(rootNode, appendersComponent));
          if (filtersComponent.getComponents().size() > 0) {
              if (filtersComponent.getComponents().size() == 1) {
                  children.add(convertToNode(rootNode, filtersComponent.getComponents().get(0)));
              } else {
                  children.add(convertToNode(rootNode, filtersComponent));
              }
         }
         root = null;
     }
 
     public String getContentType() {
         return this.contentType;
     }
 
     public void setContentType(String contentType) {
         this.contentType = contentType;
     }
 
     public void createAdvertiser(final String advertiserString, final ConfigurationSource configSource) {
         byte[] buffer = null;
         try {
             if (configSource != null) {
                 InputStream is = configSource.getInputStream();
                 if (is != null) {
                     buffer = toByteArray(is);
                 }
             }
         } catch (IOException ioe) {
             LOGGER.warn("Unable to read configuration source " + configSource.toString());
         }
         super.createAdvertiser(advertiserString, configSource, buffer, contentType);
     }
 
     public StatusConfiguration getStatusConfiguration() {
         return statusConfig;
     }
 
     public void setPluginPackages(final String packages) {
         pluginPackages.addAll(Arrays.asList(packages.split(Patterns.COMMA_SEPARATOR)));
     }
 
     public void setShutdownHook(final String flag) {
         isShutdownHookEnabled = !"disable".equalsIgnoreCase(flag);
     }
 
     public void setMonitorInterval(final int intervalSeconds) {
         if (this instanceof Reconfigurable && intervalSeconds > 0) {
             final ConfigurationSource configSource = getConfigurationSource();
             if (configSource != null) {
                 final File configFile = configSource.getFile();
                 if (intervalSeconds > 0 && configFile != null) {
                     monitor = new FileConfigurationMonitor((Reconfigurable)this, configFile, listeners, intervalSeconds);
                 }
             }
         }
     }
 
     public PluginManager getPluginManager() {
         return pluginManager;
     }
 
     protected Node convertToNode(final Node parent, final Component component) {
         final String name = component.getPluginType();
         final PluginType<?> pluginType = pluginManager.getPluginType(name);
         final Node node = new Node(parent, name, pluginType);
         node.getAttributes().putAll(component.getAttributes());
         node.setValue(component.getValue());
         final List<Node> children = node.getChildren();
         for (final Component child : component.getComponents()) {
             children.add(convertToNode(node, child));
         }
         return node;
     }
 }