/**
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
 * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations under the License.
 *
 * Copyright 2012-2015 the original author or authors.
 */
package org.assertj.swing.format;

import static org.assertj.core.util.Strings.quote;

import java.awt.Component;

import javax.annotation.Nonnull;
import javax.swing.JTabbedPane;

import org.assertj.swing.util.Arrays;

/**
 * Formatter for {@code JTabbedPane}s.
 *
 * @author Alex Ruiz
 */
public class JTabbedPaneFormatter extends ComponentFormatterTemplate {
  private static final String NO_SELECTION = "<No selection>";

  /**
   * Returns the {@code String} representation of the given {@code Component}, which should be a {@code JTabbedPane}.
   *
   * @param c the given {@code Component}.
   * @return the {@code String} representation of the given {@code JTabbedPane}.
   */
  @Override
  protected @Nonnull String doFormat(@Nonnull Component c) {
    JTabbedPane tabbedPane = (JTabbedPane) c;
    String format = "%s[name=%s, selectedTabIndex=%d, selectedTabTitle=%s, tabCount=%d, tabTitles=%s, enabled=%b, visible=%s, showing=%s";
    return String.format(format, getRealClassName(c), quote(tabbedPane.getName()),
                         tabbedPane.getSelectedIndex(), selectedTab(tabbedPane), tabbedPane.getTabCount(),
                         Arrays.format(tabTitles(tabbedPane)), tabbedPane.isEnabled(), tabbedPane.isVisible(),
                         tabbedPane.isShowing());
  }

  private String selectedTab(JTabbedPane tabbedPane) {
    if (tabbedPane.getTabCount() == 0) {
      return NO_SELECTION;
    }
    int index = tabbedPane.getSelectedIndex();
    if (index == -1) {
      return NO_SELECTION;
    }
    return quote(tabbedPane.getTitleAt(index));
  }

  private String[] tabTitles(JTabbedPane tabbedPane) {
    int count = tabbedPane.getTabCount();
    if (count == 0) {
      return new String[0];
    }
    String[] titles = new String[count];
    for (int i = 0; i < count; i++) {
      titles[i] = tabbedPane.getTitleAt(i);
    }
    return titles;
  }

  /**
   * @return {@code JTabbedPane.class}.
   */
  @Override
  public @Nonnull Class<? extends Component> targetType() {
    return JTabbedPane.class;
  }
}