/*
 * SPDX-License-Identifier: Apache-2.0
 *
 * The OpenSearch Contributors require contributions made to
 * this file be licensed under the Apache-2.0 license or a
 * compatible open source license.
 */

/*
 * Licensed to Elasticsearch under one or more contributor
 * license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright
 * ownership. Elasticsearch 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.
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/*
 * Modifications Copyright OpenSearch Contributors. See
 * GitHub history for details.
 */

package org.opensearch.common.joda;

import org.opensearch.common.time.DateFormatter;
import org.opensearch.test.OpenSearchTestCase;
import org.joda.time.DateTime;
import org.joda.time.DateTimeZone;

import java.time.ZoneOffset;

import static org.hamcrest.Matchers.is;
import static org.hamcrest.Matchers.not;

public class JodaTests extends OpenSearchTestCase {

    public void testBasicTTimePattern() {
        DateFormatter formatter1 = Joda.forPattern("basic_t_time");
        assertEquals(formatter1.pattern(), "basic_t_time");
        assertEquals(formatter1.zone(), ZoneOffset.UTC);

        DateFormatter formatter2 = Joda.forPattern("basicTTime");
        assertEquals(formatter2.pattern(), "basicTTime");
        assertEquals(formatter2.zone(), ZoneOffset.UTC);
        assertWarnings(
            "Camel case format name basicTTime is deprecated and will be removed in a future version. "
                + "Use snake case name basic_t_time instead."
        );
        DateTime dt = new DateTime(2004, 6, 9, 10, 20, 30, 40, DateTimeZone.UTC);
        assertEquals("T102030.040Z", formatter1.formatJoda(dt));
        assertEquals("T102030.040Z", formatter1.formatJoda(dt));

        expectThrows(IllegalArgumentException.class, () -> Joda.forPattern("basic_t_Time"));
        expectThrows(IllegalArgumentException.class, () -> Joda.forPattern("basic_T_Time"));
        expectThrows(IllegalArgumentException.class, () -> Joda.forPattern("basic_T_time"));
    }

    public void testEqualsAndHashcode() {
        String format = randomFrom("yyyy/MM/dd HH:mm:ss", "basic_t_time");
        JodaDateFormatter first = Joda.forPattern(format);
        JodaDateFormatter second = Joda.forPattern(format);
        JodaDateFormatter third = Joda.forPattern(" HH:mm:ss, yyyy/MM/dd");

        assertThat(first, is(second));
        assertThat(second, is(first));
        assertThat(first, is(not(third)));
        assertThat(second, is(not(third)));

        assertThat(first.hashCode(), is(second.hashCode()));
        assertThat(second.hashCode(), is(first.hashCode()));
        assertThat(first.hashCode(), is(not(third.hashCode())));
        assertThat(second.hashCode(), is(not(third.hashCode())));
    }
}