/*
    * (c) Copyright 2006-2020 by rapiddweller GmbH & Volker Bergmann. All rights reserved.
    *
    * Redistribution and use in source and binary forms, with or without
    * modification, is permitted under the terms of the
    * GNU General Public License.
    *
    * For redistributing this software or a derivative work under a license other
    * than the GPL-compatible Free Software License as defined by the Free
   * Software Foundation or approved by OSI, you must first obtain a commercial
   * license to this software product from rapiddweller GmbH & Volker Bergmann.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   * WITHOUT A WARRANTY OF ANY KIND. ALL EXPRESS OR IMPLIED CONDITIONS,
   * REPRESENTATIONS AND WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF
   * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE
   * HEREBY EXCLUDED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   * POSSIBILITY OF SUCH DAMAGE.
   */
  
  package com.rapiddweller.domain.person;
  
  import com.rapiddweller.common.CollectionUtil;
  import com.rapiddweller.common.ConversionException;
  import com.rapiddweller.common.LocaleUtil;
  import com.rapiddweller.common.Locales;
  import com.rapiddweller.common.StringUtil;
  import com.rapiddweller.common.converter.ThreadSafeConverter;
  
  import java.util.Locale;
  import java.util.Set;
  
  /**
   * Formats {@link Person} objects.<br/><br/>
   * Created: 22.02.2010 12:41:37
   *
   * @author Volker Bergmann
   * @since 0.6.0
   */
  public abstract class PersonFormatter
      extends ThreadSafeConverter<Person, String> {
  
    /**
     * The constant WESTERN.
     */
    public static final PersonFormatter WESTERN = new Western();
    /**
     * The constant EASTERN.
     */
    public static final PersonFormatter EASTERN = new Eastern();
    private static final Set<Locale> EASTERN_LOCALES = CollectionUtil.toSet(
        Locales.CHINESE, Locales.JAPANESE, Locales.KOREAN, Locales.THAI,
        Locales.VIETNAMESE
    );
  
    /**
     * Instantiates a new Person formatter.
     */
    public PersonFormatter() {
      super(Person.class, String.class);
    }
  
    /**
     * Gets instance.
     *
     * @param locale the locale
     * @return the instance
     */
    public static PersonFormatter getInstance(Locale locale) {
      return (EASTERN_LOCALES.contains(LocaleUtil.language(locale)) ?
          EASTERN : WESTERN);
    }
  
    @Override
    public String convert(Person person) throws ConversionException {
      return format(person);
    }
  
    /**
     * Format string.
     *
     * @param person the person
     * @return the string
     */
    public abstract String format(Person person);
  
    /**
     * Append separated.
     *
     * @param part    the part
     * @param builder the builder
     */
    protected void appendSeparated(String part, StringBuilder builder) {
     if (!StringUtil.isEmpty(part)) {
       if (builder.length() > 0) {
         builder.append(' ');
       }
       builder.append(part);
     }
   }
 
   /**
    * The type Western.
    */
   static class Western extends PersonFormatter {
 
     @Override
     public String format(Person person) {
       StringBuilder builder = new StringBuilder();
       appendSeparated(person.getSalutation(), builder);
       appendSeparated(person.getAcademicTitle(), builder);
       appendSeparated(person.getNobilityTitle(), builder);
       appendSeparated(person.getGivenName(), builder);
       appendSeparated(person.getFamilyName(), builder);
       return builder.toString();
     }
   }
 
   /**
    * The type Eastern.
    */
   static class Eastern extends PersonFormatter {
 
     @Override
     public String format(Person person) {
       StringBuilder builder = new StringBuilder();
       appendSeparated(person.getSalutation(), builder);
       appendSeparated(person.getAcademicTitle(), builder);
       appendSeparated(person.getNobilityTitle(), builder);
       appendSeparated(person.getFamilyName(), builder);
       appendSeparated(person.getGivenName(), builder);
       return builder.toString();
     }
   }
 
 }