package org.apache.maven.repository.internal;

/*
 * 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.
 */

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 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.assertTrue;

public class RemoteSnapshotMetadataTest
{
    private Locale defaultLocale;

    @BeforeEach
    public void setLocaleToUseBuddhistCalendar()
    {
        defaultLocale = Locale.getDefault();
        Locale.setDefault( new Locale( "th", "TH" ) );
    }

    @AfterEach
    public 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
    public void gregorianCalendarIsUsed()
    {
        String dateBefore = gregorianDate();

        RemoteSnapshotMetadata metadata = new RemoteSnapshotMetadata(
                new DefaultArtifact( "a:b:1-SNAPSHOT" ), false, new Date() );
        metadata.merge( new Metadata() );

        String dateAfter = gregorianDate();

        String ts = metadata.metadata.getVersioning().getSnapshot().getTimestamp();
        String datePart = 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 );
    }
}