/*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you 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.
   */
  package org.apache.syncope.core.provisioning.api.utils;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  import java.security.SecureRandom;
  import java.text.DecimalFormat;
  import java.text.DecimalFormatSymbols;
  import java.text.ParseException;
  import java.time.LocalDate;
  import java.time.OffsetDateTime;
  import java.time.ZoneOffset;
  import java.time.format.DateTimeFormatter;
  import java.time.temporal.ChronoUnit;
  import java.util.Locale;
  import org.apache.syncope.core.provisioning.api.AbstractTest;
  import org.junit.jupiter.api.Test;
  
  public class FormatUtilsTest extends AbstractTest {
  
      private static final SecureRandom RANDOM = new SecureRandom();
  
      private static final OffsetDateTime DATE = OffsetDateTime.now();
  
      @Test
      public void formatDate() {
          assertEquals(
                  DATE.truncatedTo(ChronoUnit.SECONDS).format(DateTimeFormatter.ISO_OFFSET_DATE_TIME),
                  FormatUtils.format(DATE));
  
          String conversionPattern = "dd/MM/yyyy";
          assertEquals(
                  DATE.format(DateTimeFormatter.ofPattern(conversionPattern)),
                  FormatUtils.format(DATE, conversionPattern));
      }
  
      @Test
      public void formatLongNumber() {
          long number = RANDOM.nextLong();
          DecimalFormat df = new DecimalFormat();
          df.setDecimalFormatSymbols(DecimalFormatSymbols.getInstance(Locale.ENGLISH));
          assertEquals(df.format(number), FormatUtils.format(number));
  
          String conversionPattern = "###,###";
          df = new DecimalFormat(conversionPattern);
          df.setDecimalFormatSymbols(DecimalFormatSymbols.getInstance(Locale.ENGLISH));
          assertEquals(df.format(number), FormatUtils.format(number, conversionPattern));
      }
  
      @Test
      public void formatDoubleNumber() {
          double number = RANDOM.nextDouble();
          DecimalFormat df = new DecimalFormat();
          df.setDecimalFormatSymbols(DecimalFormatSymbols.getInstance(Locale.ENGLISH));
          assertEquals(df.format(number), FormatUtils.format(number));
  
          String conversionPattern = "###,###";
          df = new DecimalFormat(conversionPattern);
          df.setDecimalFormatSymbols(DecimalFormatSymbols.getInstance(Locale.ENGLISH));
          assertEquals(df.format(number), FormatUtils.format(number, conversionPattern));
      }
  
      @Test
      public void parseDate() throws ParseException {
          String source = DATE.truncatedTo(ChronoUnit.SECONDS).format(DateTimeFormatter.ISO_OFFSET_DATE_TIME);
          assertEquals(
                  OffsetDateTime.parse(source, DateTimeFormatter.ISO_OFFSET_DATE_TIME),
                  FormatUtils.parseDate(source));
  
          String conversionPattern = "dd-MM-yyyy";
          source = DATE.format(DateTimeFormatter.ofPattern(conversionPattern));
          assertEquals(
                  LocalDate.parse(source, DateTimeFormatter.ofPattern(conversionPattern)).
                          atStartOfDay(ZoneOffset.UTC).toOffsetDateTime(),
                  FormatUtils.parseDate(source, conversionPattern));
      }
  
      @Test
      public void parseNumber() throws ParseException {
          String source = String.valueOf(RANDOM.nextLong());
          String conversionPattern = "###,###";
          assertEquals(Long.valueOf(source), FormatUtils.parseNumber(source, conversionPattern));
     }
 }