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/*
 * Copyright 2017 Red Hat, Inc. and/or its affiliates.
 *
 * Licensed under the Eclipse Public License version 1.0, available at
 * http://www.eclipse.org/legal/epl-v10.html
 */

package io.openshift.launchpad.ui.input;

import java.util.regex.Pattern;

import javax.enterprise.inject.Typed;
import javax.inject.Inject;

import org.jboss.forge.addon.parser.java.ui.validators.PackageUIValidator;
import org.jboss.forge.addon.ui.input.AbstractUIInputDecorator;
import org.jboss.forge.addon.ui.input.UIInput;
import org.jboss.forge.addon.ui.metadata.WithAttributes;

/**
 * The project top level package
 * 
 * @author George Gastaldi
 */
@Typed(TopLevelPackage.class)
public class TopLevelPackage extends AbstractUIInputDecorator
{
   private static final Pattern SPECIAL_CHARS = Pattern.compile(".*[^-_.a-zA-Z0-9].*");

   @Inject
   @WithAttributes(label = "Top level package", required = true, defaultValue = "com.example")
   private UIInput topLevelPackage;

   @Override
   protected UIInput createDelegate()
   {
      topLevelPackage.addValidator(new PackageUIValidator()).addValidator(context -> {
         if (topLevelPackage.getValue() != null
                  && SPECIAL_CHARS.matcher(topLevelPackage.getValue()).matches())
            context.addValidationError(topLevelPackage,
                     "Top level package must not contain spaces or special characters.");

      }).setDescription("The following characters are accepted: -_.a-zA-Z0-9");
      return topLevelPackage;
   }
}