/*
    * 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.syncope.client.console.wizards.resources;
  
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.HashSet;
  import java.util.List;
  import java.util.Set;
  import org.apache.syncope.client.console.init.ClassPathScanImplementationLookup;
  import org.apache.syncope.client.console.rest.AnyTypeClassRestClient;
  import org.apache.syncope.client.console.rest.AnyTypeRestClient;
  import org.apache.syncope.client.console.rest.ConnectorRestClient;
  import org.apache.syncope.client.console.wizards.mapping.AbstractMappingPanel;
  import org.apache.syncope.client.console.wizards.mapping.ItemTransformersTogglePanel;
  import org.apache.syncope.client.console.wizards.mapping.JEXLTransformersTogglePanel;
  import org.apache.syncope.client.ui.commons.Constants;
  import org.apache.syncope.client.ui.commons.markup.html.form.AjaxTextFieldPanel;
  import org.apache.syncope.common.lib.SyncopeConstants;
  import org.apache.syncope.common.lib.to.AnyTypeClassTO;
  import org.apache.syncope.common.lib.to.AnyTypeTO;
  import org.apache.syncope.common.lib.to.ResourceTO;
  import org.apache.syncope.common.lib.types.AnyTypeKind;
  import org.apache.syncope.common.lib.types.MappingPurpose;
  import org.apache.wicket.model.IModel;
  import org.apache.wicket.model.LoadableDetachableModel;
  import org.apache.wicket.model.util.ListModel;
  import org.apache.wicket.spring.injection.annot.SpringBean;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * Resource mapping panel.
   */
  public class ResourceMappingPanel extends AbstractMappingPanel {
  
      private static final long serialVersionUID = -7982691107029848579L;
  
      protected static final Logger LOG = LoggerFactory.getLogger(ResourceMappingPanel.class);
  
      @SpringBean
      protected ConnectorRestClient connectorRestClient;
  
      @SpringBean
      protected AnyTypeRestClient anyTypeRestClient;
  
      @SpringBean
      protected AnyTypeClassRestClient anyTypeClassRestClient;
  
      /**
       * External resource provisioning configuration instance to be updated.
       */
      protected final ResourceProvision provision;
  
      protected final LoadableDetachableModel<List<String>> extAttrNames;
  
      /**
       * Attribute Mapping Panel.
       *
       * @param id panel id
       * @param resourceTO external resource to be updated
       * @param adminRealm admin realm
       * @param provision external resource provisioning configuration instance
       * @param itemTransformers mapping item transformers toggle panel
       * @param jexlTransformers JEXL transformers toggle panel
       */
      public ResourceMappingPanel(
              final String id,
              final ResourceTO resourceTO,
              final String adminRealm,
              final ResourceProvision provision,
              final ItemTransformersTogglePanel itemTransformers,
              final JEXLTransformersTogglePanel jexlTransformers) {
  
          super(id,
                  itemTransformers,
                  jexlTransformers,
                  new ListModel<>(provision.getItems()),
                  resourceTO.getConnector() != null,
                  MappingPurpose.BOTH);
  
          setOutputMarkupId(true);
  
         this.provision = provision;
 
         extAttrNames = new LoadableDetachableModel<>() {
 
             private static final long serialVersionUID = 5275935387613157437L;
 
             @Override
             protected List<String> load() {
                 return connectorRestClient.getExtAttrNames(
                         adminRealm,
                         provision.getObjectClass(),
                         resourceTO.getConnector(),
                         resourceTO.getConfOverride());
             }
         };
     }
 
     @Override
     protected boolean hidePassword() {
         return !AnyTypeKind.USER.name().equals(provision.getAnyType());
     }
 
     @Override
     protected IModel<List<String>> getExtAttrNames() {
         return extAttrNames;
     }
 
     @Override
     protected void onBeforeRender() {
         super.onBeforeRender();
         passwordLabel.setVisible(AnyTypeKind.USER.name().equals(this.provision.getAnyType()));
     }
 
     @Override
     protected void setAttrNames(final AjaxTextFieldPanel toBeUpdated) {
         toBeUpdated.setRequired(true);
         toBeUpdated.setEnabled(true);
 
         Set<String> choices = new HashSet<>();
         if (SyncopeConstants.REALM_ANYTYPE.equals(provision.getAnyType())) {
             choices.add(Constants.KEY_FIELD_NAME);
             choices.add("name");
             choices.add("fullpath");
         } else {
             AnyTypeTO anyType = null;
             try {
                 anyType = anyTypeRestClient.read(provision.getAnyType());
             } catch (Exception e) {
                 LOG.error("Could not read AnyType {}", provision.getAnyType(), e);
             }
 
             List<AnyTypeClassTO> anyTypeClassTOs = new ArrayList<>();
             if (anyType != null) {
                 try {
                     anyTypeClassTOs.addAll(anyTypeClassRestClient.list(anyType.getClasses()));
                 } catch (Exception e) {
                     LOG.error("Could not read AnyType classes for {}", anyType.getClasses(), e);
                 }
             }
             provision.getAuxClasses().forEach(auxClass -> {
                 try {
                     anyTypeClassTOs.add(anyTypeClassRestClient.read(auxClass));
                 } catch (Exception e) {
                     LOG.error("Could not read AnyTypeClass for {}", auxClass, e);
                 }
             });
 
             switch (provision.getAnyType()) {
                 case "USER":
                     choices.addAll(ClassPathScanImplementationLookup.USER_FIELD_NAMES);
                     break;
 
                 case "GROUP":
                     choices.addAll(ClassPathScanImplementationLookup.GROUP_FIELD_NAMES);
                     break;
 
                 default:
                     choices.addAll(ClassPathScanImplementationLookup.ANY_OBJECT_FIELD_NAMES);
             }
 
             anyTypeClassTOs.forEach(anyTypeClassTO -> {
                 choices.addAll(anyTypeClassTO.getPlainSchemas());
                 choices.addAll(anyTypeClassTO.getDerSchemas());
                 choices.addAll(anyTypeClassTO.getVirSchemas());
             });
         }
 
         List<String> names = new ArrayList<>(choices);
         Collections.sort(names);
         toBeUpdated.setChoices(names);
     }
 }