/*
    * 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.io.Serializable;
  import java.util.List;
  import java.util.Optional;
  import org.apache.commons.lang3.StringUtils;
  import org.apache.syncope.client.console.SyncopeWebApplication;
  import org.apache.syncope.client.console.layout.UserFormLayoutInfo;
  import org.apache.syncope.client.console.rest.UserRestClient;
  import org.apache.syncope.client.ui.commons.layout.UserForm;
  import org.apache.syncope.client.ui.commons.wizards.AjaxWizard;
  import org.apache.syncope.client.ui.commons.wizards.any.AnyWrapper;
  import org.apache.syncope.client.ui.commons.wizards.any.UserWrapper;
  import org.apache.syncope.common.lib.AnyOperations;
  import org.apache.syncope.common.lib.EntityTOUtils;
  import org.apache.syncope.common.lib.request.PasswordPatch;
  import org.apache.syncope.common.lib.request.UserCR;
  import org.apache.syncope.common.lib.request.UserUR;
  import org.apache.syncope.common.lib.to.ProvisioningResult;
  import org.apache.syncope.common.lib.to.UserTO;
  import org.apache.wicket.PageReference;
  
  public class UserWizardBuilder extends AnyWizardBuilder<UserTO> implements UserForm {
  
      private static final long serialVersionUID = 6716803168859873877L;
  
      protected final UserRestClient userRestClient;
  
      public UserWizardBuilder(
              final List<String> anyTypeClasses,
              final UserFormLayoutInfo formLayoutInfo,
              final UserRestClient userRestClient,
              final PageReference pageRef) {
  
          super(new UserWrapper(null), anyTypeClasses, formLayoutInfo, pageRef);
          this.userRestClient = userRestClient;
      }
  
      public UserWizardBuilder(
              final UserTO previousUserTO,
              final UserTO userTO,
              final List<String> anyTypeClasses,
              final UserFormLayoutInfo formLayoutInfo,
              final UserRestClient userRestClient,
              final PageReference pageRef) {
  
          super(new UserWrapper(previousUserTO, userTO), anyTypeClasses, formLayoutInfo, pageRef);
          this.userRestClient = userRestClient;
      }
  
      @Override
      protected Serializable onApplyInternal(final AnyWrapper<UserTO> modelObject) {
          UserTO inner = modelObject.getInnerObject();
  
          ProvisioningResult<UserTO> result;
          if (inner.getKey() == null) {
              UserCR req = new UserCR();
              EntityTOUtils.toAnyCR(inner, req);
              req.setStorePassword(modelObject instanceof UserWrapper
                      ? UserWrapper.class.cast(modelObject).isStorePasswordInSyncope()
                      : StringUtils.isNotBlank(inner.getPassword()));
  
              result = userRestClient.create(req);
          } else {
              fixPlainAndVirAttrs(inner, getOriginalItem().getInnerObject());
              UserUR userUR = AnyOperations.diff(inner, getOriginalItem().getInnerObject(), false);
  
              if (StringUtils.isNotBlank(inner.getPassword())) {
                  PasswordPatch passwordPatch = new PasswordPatch.Builder().
                          value(inner.getPassword()).onSyncope(true).resources(inner.getResources()).build();
                  userUR.setPassword(passwordPatch);
              }
  
              // update just if it is changed
              if (userUR.isEmpty()) {
                  result = new ProvisioningResult<>();
                  result.setEntity(inner);
              } else {
                  List<UserFormFinalizer> finalizers = SyncopeWebApplication.get().getFormFinalizers(mode);
  
                  finalizers.forEach(finalizer -> finalizer.beforeUpdate(userUR.getKey()));
 
                 result = userRestClient.update(getOriginalItem().getInnerObject().getETagValue(), userUR);
 
                 finalizers.forEach(finalizer -> finalizer.afterUpdate(userUR.getKey()));
             }
         }
 
         return result;
     }
 
     @Override
     protected Optional<Details<UserTO>> addOptionalDetailsPanel(final AnyWrapper<UserTO> modelObject) {
         return Optional.of(new UserDetails(
                 UserWrapper.class.cast(modelObject),
                 mode == AjaxWizard.Mode.TEMPLATE,
                 modelObject.getInnerObject().getKey() != null,
                 UserFormLayoutInfo.class.cast(formLayoutInfo).isPasswordManagement(),
                 pageRef));
     }
 
     /**
      * Overrides default setItem() in order to clean statusModel as well.
      *
      * @param item item to be set.
      * @return the current wizard.
      */
     @Override
     public UserWizardBuilder setItem(final AnyWrapper<UserTO> item) {
         super.setItem(Optional.ofNullable(item).
                 map(userTOAnyWrapper -> new UserWrapper(userTOAnyWrapper.getInnerObject())).orElse(null));
         return this;
     }
 }