/*
 * SonarQube
 * Copyright (C) 2009-2023 SonarSource SA
 * mailto:info AT sonarsource DOT com
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
package org.sonar.core.i18n;

import java.util.Date;
import java.util.Locale;
import javax.annotation.Nullable;
import org.sonar.api.ce.ComputeEngineSide;
import org.sonar.api.server.ServerSide;

@ServerSide
@ComputeEngineSide
public interface I18n {

  /**
   * Searches the message of the <code>key</code> for the <code>locale</code> in the list of available bundles.
   * <br>
   * If not found in any bundle, <code>defaultValue</code> is returned.
   * <br>
   * If additional parameters are given (in the objects list), the result is used as a message pattern
   * to use in a MessageFormat object along with the given parameters.
   *
   * @param locale       the locale to translate into
   * @param key          the key of the pattern to translate
   * @param defaultValue the default pattern returned when the key is not found in any bundle
   * @param parameters   the parameters used to format the message from the translated pattern.
   * @return the message formatted with the translated pattern and the given parameters
   */
  String message(final Locale locale, final String key, @Nullable final String defaultValue, final Object... parameters);

  /**
   * Return the distance in time for a duration in milliseconds.
   * <br>
   * Examples :
   * <ul>
   * <li>age(Locale.ENGLISH, 1000) -&gt; less than a minute</li>
   * <li>age(Locale.ENGLISH, 60000) -&gt; about a minute</li>
   * <li>age(Locale.ENGLISH, 120000) -&gt; 2 minutes</li>
   * <li>age(Locale.ENGLISH, 3600000) -&gt; about an hour</li>
   * <li>age(Locale.ENGLISH, 7200000) -&gt; 2 hours</li>
   * <li>age(Locale.ENGLISH, 86400000) -&gt; a day</li>
   * <li>age(Locale.ENGLISH, 172800000) -&gt; 2 days</li>
   * </ul>
   *
   * @since 4.2
   */
  String age(Locale locale, long durationInMillis);

  /**
   * Return the distance in time between two dates.
   *
   * @see I18n#age(java.util.Locale, long durationInMillis)
   * @since 4.2
   */
  String age(Locale locale, Date fromDate, Date toDate);

  /**
   * Reports the distance in time a date and now.
   *
   * @see I18n#age(java.util.Locale, java.util.Date, java.util.Date)
   * @since 4.2
   */
  String ageFromNow(Locale locale, Date date);

  /**
   * Return the formatted datetime.
   * <p>
   * Example: {@code formatDateTime(Locale.ENGLISH, DateUtils.parseDateTime("2014-01-22T19:10:03+0100"))}
   * returns {@code "Jan 22, 2014 7:10 PM"}.
   * </p>
   *
   * @since 4.2
   */
  String formatDateTime(Locale locale, Date date);

  /**
   * Return the formatted date.
   * <br>
   * Example: {@code formatDateTime(Locale.ENGLISH, DateUtils.parseDateTime("2014-01-22"))}
   * returns {@code "Jan 22, 2014"}.
   *
   * @since 4.2
   */
  String formatDate(Locale locale, Date date);

  /**
   * Return the formatted decimal, with always one fraction digit.
   * <br>
   * Example: {@code formatDouble(Locale.FRENCH, 10.56)} returns {@code "10,6"}.
   *
   * @since 4.4
   */
  String formatDouble(Locale locale, Double value);

  /**
   * Return the formatted integer.
   * <br>
   * Example: {@code formatInteger(Locale.ENGLISH, 100000)} returns {@code "100,000"}.
   *
   * @since 4.4
   */
  String formatInteger(Locale locale, Integer value);

}
