/*
    * 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.any;
  
  import java.util.Iterator;
  import java.util.List;
  import java.util.stream.Collectors;
  import org.apache.syncope.client.console.SyncopeConsoleSession;
  import org.apache.syncope.client.console.SyncopeWebApplication;
  import org.apache.syncope.client.console.commons.RealmsUtils;
  import org.apache.syncope.client.console.pages.Realms;
  import org.apache.syncope.client.console.rest.RealmRestClient;
  import org.apache.syncope.client.console.wicket.markup.html.form.AjaxSearchFieldPanel;
  import org.apache.syncope.client.ui.commons.markup.html.form.AjaxTextFieldPanel;
  import org.apache.syncope.client.ui.commons.markup.html.form.FieldPanel;
  import org.apache.syncope.client.ui.commons.wizards.any.AnyWrapper;
  import org.apache.syncope.common.lib.to.AnyTO;
  import org.apache.syncope.common.lib.to.RealmTO;
  import org.apache.wicket.Component;
  import org.apache.wicket.PageReference;
  import org.apache.wicket.extensions.ajax.markup.html.autocomplete.AutoCompleteSettings;
  import org.apache.wicket.extensions.wizard.WizardStep;
  import org.apache.wicket.markup.html.link.AbstractLink;
  import org.apache.wicket.markup.html.panel.Fragment;
  import org.apache.wicket.model.PropertyModel;
  import org.apache.wicket.spring.injection.annot.SpringBean;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  public class Details<T extends AnyTO> extends WizardStep {
  
      private static final long serialVersionUID = -8995647450549098844L;
  
      protected static final Logger LOG = LoggerFactory.getLogger(Details.class);
  
      protected static List<RealmTO> getRealmsFromLinks(final List<AbstractLink> realmLinks) {
          return realmLinks.stream().
                  map(Component::getDefaultModelObject).
                  filter(RealmTO.class::isInstance).
                  map(RealmTO.class::cast).
                  collect(Collectors.toList());
      }
  
      @SpringBean
      protected RealmRestClient realmRestClient;
  
      protected final PageReference pageRef;
  
      protected final FieldPanel<String> realm;
  
      public Details(
              final AnyWrapper<T> wrapper,
              final boolean templateMode,
              final boolean includeStatusPanel,
              final PageReference pageRef) {
  
          this.pageRef = pageRef;
          final List<String> authRealms = SyncopeConsoleSession.get().getAuthRealms();
          final T inner = wrapper.getInnerObject();
          final Fragment fragment;
  
          if (templateMode) {
              realm = new AjaxTextFieldPanel(
                      "destinationRealm", "destinationRealm", new PropertyModel<>(inner, "realm"), false);
              AjaxTextFieldPanel.class.cast(realm).enableJexlHelp();
              fragment = new Fragment("realmsFragment", "realmsTemplateFragment", this);
          } else {
              boolean fullRealmsTree = SyncopeWebApplication.get().fullRealmsTree(realmRestClient);
              AutoCompleteSettings settings = new AutoCompleteSettings();
              settings.setShowCompleteListOnFocusGain(fullRealmsTree);
              settings.setShowListOnEmptyInput(fullRealmsTree);
  
              realm = new AjaxSearchFieldPanel("destinationRealm", "destinationRealm",
                      new PropertyModel<>(inner, "realm"), settings) {
  
                  private static final long serialVersionUID = -6390474600233486704L;
  
                  @Override
                  protected Iterator<String> getChoices(final String input) {
                      return (pageRef.getPage() instanceof Realms
                              ? getRealmsFromLinks(Realms.class.cast(pageRef.getPage()).getRealmChoicePanel().getLinks())
                              : (fullRealmsTree
                                      ? realmRestClient.search(RealmsUtils.buildRootQuery())
                                     : realmRestClient.search(RealmsUtils.buildKeywordQuery(input))).getResult()).
                             stream().filter(realm -> authRealms.stream().anyMatch(
                             authRealm -> realm.getFullPath().startsWith(authRealm))).
                             map(RealmTO::getFullPath).collect(Collectors.toList()).iterator();
                 }
             };
 
             fragment = new Fragment("realmsFragment", "realmsSearchFragment", this);
         }
         fragment.addOrReplace(realm);
         addOrReplace(fragment);
         add(getGeneralStatusInformation("generalStatusInformation", inner).
                 setEnabled(includeStatusPanel).setVisible(includeStatusPanel).setRenderBodyOnly(true));
 
     }
 
     public Details<T> disableRealmSpecification() {
         this.realm.setReadOnly(true);
         return this;
     }
 
     protected AnnotatedBeanPanel getGeneralStatusInformation(final String id, final T anyTO) {
         return new AnnotatedBeanPanel(id, anyTO);
     }
 }