/**
    * This file Copyright (c) 2013-2018 Magnolia International
    * Ltd.  (http://www.magnolia-cms.com). All rights reserved.
    *
    *
    * This file is dual-licensed under both the Magnolia
    * Network Agreement and the GNU General Public License.
    * You may elect to use one or the other of these licenses.
    *
   * This file is distributed in the hope that it will be
   * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
   * implied warranty of MERCHANTABILITY or FITNESS FOR A
   * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
   * Redistribution, except as permitted by whichever of the GPL
   * or MNA you select, is prohibited.
   *
   * 1. For the GPL license (GPL), you can redistribute and/or
   * modify this file under the terms of the GNU General
   * Public License, Version 3, as published by the Free Software
   * Foundation.  You should have received a copy of the GNU
   * General Public License, Version 3 along with this program;
   * if not, write to the Free Software Foundation, Inc., 51
   * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   *
   * 2. For the Magnolia Network Agreement (MNA), this file
   * and the accompanying materials are made available under the
   * terms of the MNA which accompanies this distribution, and
   * is available at http://www.magnolia-cms.com/mna.html
   *
   * Any modifications to this file must keep this entire header
   * intact.
   *
   */
  package info.magnolia.ui.form.field.factory;
  
  import info.magnolia.objectfactory.ComponentProvider;
  import info.magnolia.registry.RegistrationException;
  import info.magnolia.ui.form.field.definition.FieldDefinition;
  import info.magnolia.ui.form.fieldtype.definition.FieldTypeDefinition;
  import info.magnolia.ui.form.fieldtype.registry.FieldTypeDefinitionRegistry;
  import info.magnolia.ui.form.validator.registry.FieldValidatorFactoryFactory;
  
  import java.io.Serializable;
  
  import javax.inject.Inject;
  
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * Factory for creating FieldFactory instances using an internal set of mappings connecting a {@link info.magnolia.ui.form.field.definition.FieldDefinition} class with a {@link FieldFactory} class.
   *
   * @see FieldDefinition
   * @see FieldFactory
   */
  public class FieldFactoryFactory implements Serializable {
  
      private static final Logger log = LoggerFactory.getLogger(FieldFactoryFactory.class);
  
      private final ComponentProvider componentProvider;
      private final FieldTypeDefinitionRegistry fieldTypeDefinitionRegistry;
      private final FieldValidatorFactoryFactory fieldValidatorFactoryFactory;
  
      @Inject
      public FieldFactoryFactory(ComponentProvider componentProvider, FieldTypeDefinitionRegistry fieldTypeDefinitionRegistry, FieldValidatorFactoryFactory fieldValidatorFactoryFactory) {
          this.componentProvider = componentProvider;
          this.fieldTypeDefinitionRegistry = fieldTypeDefinitionRegistry;
          this.fieldValidatorFactoryFactory = fieldValidatorFactoryFactory;
      }
  
  
      /**
       * Based on the {@link FieldDefinition}, get the related {@link FieldFactory} initialized with the input parameters. <br>
       * 
       * @param definition
       * @param parameters
       * @return related {@link FieldFactory} or null in case of exception or if no related factory is defined.
       */
      public FieldFactory createFieldFactory(FieldDefinition definition, Object... parameters) {
  
          FieldTypeDefinition fieldTypeDefinition;
          try {
              fieldTypeDefinition = fieldTypeDefinitionRegistry.getByDefinition(definition.getClass());
              if (fieldTypeDefinition == null) {
                  return null;
              }
          } catch (RegistrationException e) {
              log.error("No field type definition found for " + definition.getName(), e);
              return null;
          }
  
          Class<? extends FieldFactory> factoryClass = fieldTypeDefinition.getFactoryClass();
          if (factoryClass == null) {
              log.warn("No factory class set for definition class [{}]. Please check your configuration.", definition.getClass().getName());
              return null;
          }
  
          Object[] combinedParameters = new Object[parameters.length + 1];
          combinedParameters[0] = definition;
         System.arraycopy(parameters, 0, combinedParameters, 1, parameters.length);
 
         FieldFactory fieldFactory = componentProvider.newInstance(factoryClass, combinedParameters);
         fieldFactory.setFieldValidatorFactoryFactory(fieldValidatorFactoryFactory);
 
         return fieldFactory;
     }
 }