package com.melloware.jukes.gui.view.validation;
   
   import java.text.MessageFormat;
   import java.util.Iterator;
   import java.util.List;
   
   import com.jgoodies.validation.ValidationResult;
   import com.jgoodies.validation.Validator;
   import com.jgoodies.validation.util.PropertyValidationSupport;
  import com.jgoodies.validation.util.ValidationUtils;
  import com.melloware.jukes.db.orm.Disc;
  import com.melloware.jukes.file.tag.MusicTag;
  import com.melloware.jukes.gui.tool.Resources;
  
  /**
   * Validates Discs.
   * <p>
   * Copyright (c) 1999-2007 Melloware, Inc. <http://www.melloware.com>
   * @author Emil A. Lefkof III <info@melloware.com>
   * @version 4.0
   */
  public final class DiscValidator implements Validator {
  
     private static final String NAME = "Name";
     private static final String GENRE = "Genre";
     private static final String YEAR = "Year";
     private static final String MESSAGE_MANDATORY = Resources.getString("messages.isMandatory");
     private static final String NOTES = "Notes";
     private static final List<String> GENRE_LIST = MusicTag.getGenreTypes();
     private static final String MESSAGE_LENGTH_500 = Resources.getString("messages.Length500");
     private static final String MESSAGE_LENGTH_100 = Resources.getString("messages.Length100");
     private static final String MESSAGE_LENGTH_4 = Resources.getString("messages.Length4");
     private static final String MESSAGE_MUST_BE_A_NUMBER = Resources.getString("messages.mustbeanumber");
     private static final String MESSAGE_BASIC_GENRE = Resources.getString("messages.BasicGenre");
  
     /**
      * Holds the disc to be validated.
      */
     private final Disc disc;
  
     /**
      * Constructs a DiscValidator on the given Disc.
      * @param disc the disc to be validated
      */
     public DiscValidator(Disc disc) {
        this.disc = disc;
     }
  
     public boolean containsIgnoreCase(List<String> l, String s) {
        Iterator<String> it = l.iterator();
        while (it.hasNext()) {
           if (it.next().compareToIgnoreCase(s) == 0) {
              return true;
           }
        }
        return false;
     }
  
     /**
      * Validates this Validator's Order and returns the result as an instance of
      * {@link ValidationResult}.
      * @return the ValidationResult of the disc validation
      */
     @Override
     public ValidationResult validate(Object validationTarget) {
        final PropertyValidationSupport support = new PropertyValidationSupport(disc, "Disc");
  
        if (ValidationUtils.isBlank(disc.getName())) {
           support.addError(NAME, MESSAGE_MANDATORY);
        } else if (!ValidationUtils.hasMaximumLength(disc.getName(), 100)) {
           support.addError(NAME, MESSAGE_LENGTH_100);
        }
        // AZ: Validate Notes length
        if (!ValidationUtils.hasMaximumLength(disc.getNotes(), 500)) {
           support.addError(NOTES, MESSAGE_LENGTH_500);
        }
        if (ValidationUtils.isBlank(disc.getGenre())) {
           support.addError(GENRE, MESSAGE_MANDATORY);
        } else {
           if (!ValidationUtils.hasMaximumLength(disc.getGenre(), 100)) {
              support.addError(GENRE, MESSAGE_LENGTH_100);
           }
           final String TmpString = disc.getGenre().toString();
           final String BasicGenre;
           if (TmpString.indexOf(":") > 0) {
              BasicGenre = TmpString.substring(0, TmpString.indexOf(":")).trim();
           } else if (TmpString.indexOf(",") > 0) {
              BasicGenre = TmpString.substring(0, TmpString.indexOf(",")).trim();
           } else if (TmpString.indexOf(";") > 0) {
              BasicGenre = TmpString.substring(0, TmpString.indexOf(";")).trim();
           } else if (TmpString.indexOf("-") > 0) {
              BasicGenre = TmpString.substring(0, TmpString.indexOf("-")).trim();
           } else if (TmpString.indexOf(".") > 0) {
              BasicGenre = TmpString.substring(0, TmpString.indexOf(".")).trim();
           } else if (TmpString.indexOf("/") > 0) {
              BasicGenre = TmpString.substring(0, TmpString.indexOf("/")).trim();
           } else
              BasicGenre = TmpString.trim();
  
          if (!containsIgnoreCase(GENRE_LIST, BasicGenre)) {
             final String message = MessageFormat.format(MESSAGE_BASIC_GENRE, new Object[] { BasicGenre });
             support.addError(GENRE, message);
          }
       }
       if ((disc.getYear() == null)) {
          support.addError(YEAR, MESSAGE_MANDATORY);
       } else if (ValidationUtils.isBlank(disc.getYear())) {
          support.addError(YEAR, MESSAGE_MANDATORY);
       } else if (!ValidationUtils.hasBoundedLength(disc.getYear(), 4, 4)) { // NOPMD
          support.addError(YEAR, MESSAGE_LENGTH_4);
       } else if (!ValidationUtils.isNumeric(disc.getYear())) { // NOPMD
          support.addError(YEAR, MESSAGE_MUST_BE_A_NUMBER);
       }
 
       return support.getResult();
    }
 
 }