/*
    * 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.maven.repository.internal;
  
  import java.text.SimpleDateFormat;
  import java.util.Arrays;
  import java.util.Date;
  import java.util.GregorianCalendar;
  import java.util.HashSet;
  import java.util.Locale;
  import java.util.Set;
  import java.util.regex.Pattern;
  
  import org.apache.maven.artifact.repository.metadata.Metadata;
  import org.eclipse.aether.artifact.DefaultArtifact;
  import org.junit.jupiter.api.AfterEach;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  class RemoteSnapshotMetadataTest {
      private Locale defaultLocale;
  
      private static final Pattern DATE_FILTER = Pattern.compile("\\..*");
  
      @BeforeEach
      void setLocaleToUseBuddhistCalendar() {
          defaultLocale = Locale.getDefault();
          Locale.setDefault(new Locale("th", "TH"));
      }
  
      @AfterEach
      void restoreLocale() {
          Locale.setDefault(defaultLocale);
      }
  
      static String gregorianDate() {
          SimpleDateFormat df = new SimpleDateFormat("yyyyMMdd");
          df.setCalendar(new GregorianCalendar());
          df.setTimeZone(RemoteSnapshotMetadata.DEFAULT_SNAPSHOT_TIME_ZONE);
          return df.format(new Date());
      }
  
      @Test
      void gregorianCalendarIsUsed() {
          String dateBefore = gregorianDate();
  
          RemoteSnapshotMetadata metadata =
                  new RemoteSnapshotMetadata(new DefaultArtifact("a:b:1-SNAPSHOT"), new Date(), null);
          metadata.merge(new Metadata());
  
          String dateAfter = gregorianDate();
  
          String ts = metadata.metadata.getVersioning().getSnapshot().getTimestamp();
          String datePart = DATE_FILTER.matcher(ts).replaceAll("");
  
          /* Allow for this test running across midnight */
          Set<String> expected = new HashSet<>(Arrays.asList(dateBefore, dateAfter));
          assertTrue(expected.contains(datePart), "Expected " + datePart + " to be in " + expected);
      }
  
      @Test
      void buildNumberNotSet() {
          RemoteSnapshotMetadata metadata =
                  new RemoteSnapshotMetadata(new DefaultArtifact("a:b:1-SNAPSHOT"), new Date(), null);
          metadata.merge(new Metadata());
  
          int buildNumber = metadata.metadata.getVersioning().getSnapshot().getBuildNumber();
          assertEquals(1, buildNumber);
      }
  
      @Test
      void buildNumberSet() {
          RemoteSnapshotMetadata metadata =
                  new RemoteSnapshotMetadata(new DefaultArtifact("a:b:1-SNAPSHOT"), new Date(), 42);
          metadata.merge(new Metadata());
  
          int buildNumber = metadata.metadata.getVersioning().getSnapshot().getBuildNumber();
          assertEquals(42, buildNumber);
      }
  }