/**
    * This file Copyright (c) 2015 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.dam.external.app.field;
  
  import info.magnolia.ui.form.field.converter.StringToCalendarConverter;
  import info.magnolia.ui.form.field.definition.ConfiguredFieldDefinition;
  import info.magnolia.ui.form.field.definition.TextFieldDefinition;
  
  import java.lang.reflect.Method;
  import java.util.ArrayList;
  import java.util.Collection;
  import java.util.Date;
  import java.util.GregorianCalendar;
  import java.util.List;
  
  import org.apache.commons.lang3.StringUtils;
  
  /**
   * .
   */
  public class BeanToFieldDefinition {
  
      public List<ConfiguredFieldDefinition> getFiledDefinition(Class<?> toConvertClass) {
          List<ConfiguredFieldDefinition> res = new ArrayList<ConfiguredFieldDefinition>();
          Method[] methods = toConvertClass.getMethods();
  
          for (Method method : methods) {
              if (hasToHandleMethod(method)) {
                  ConfiguredFieldDefinition definition = createFieldDefinition(method);
                  if (definition != null) {
                      res.add(definition);
                  }
              }
          }
          return res;
      }
  
      protected ConfiguredFieldDefinition createFieldDefinition(Method method) {
          if (method.getReturnType().isAssignableFrom(Date.class)) {
              // Return a Date field
              // TODO
          }
          if (method.getReturnType().isAssignableFrom(Collection.class) || method.getReturnType().getName().startsWith("[")) {
              // Return a Multi Field
              return null;
          }
          // return a Text field
          return createTextFieldDefinition(method);
      }
  
      protected TextFieldDefinition createTextFieldDefinition(Method method) {
          TextFieldDefinition field = new TextFieldDefinition();
          String name = StringUtils.uncapitalize(StringUtils.removeStart(method.getName(), "get"));
          field.setName(name);
          field.setLabel(name);
          field.setReadOnly(true);
          field.setType(method.getReturnType().getSimpleName());
          if (method.getReturnType().isAssignableFrom(GregorianCalendar.class)) {
              field.setConverterClass(StringToCalendarConverter.class);
              field.setType(null);
          }
          return field;
      }
  
      protected boolean hasToHandleMethod(Method method) {
          return method.getName().startsWith("get");
      }
  
 }