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 * the Apache License, Version 2.0 (the "License"); you may
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 * 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
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package org.elasticsearch.ingest.common;

import org.elasticsearch.ingest.IngestDocument;
import org.elasticsearch.test.ESTestCase;
import org.joda.time.DateTime;
import org.joda.time.DateTimeZone;

import java.util.Collections;
import java.util.Locale;
import java.util.function.Function;

import static org.hamcrest.CoreMatchers.equalTo;

public class DateIndexNameProcessorTests extends ESTestCase {

    public void testJodaPattern() throws Exception {
        Function<String, DateTime> function = DateFormat.Joda.getFunction("yyyy-MM-dd'T'HH:mm:ss.SSSZ", DateTimeZone.UTC, Locale.ROOT);
        DateIndexNameProcessor processor = new DateIndexNameProcessor(
                "_tag", "_field", Collections.singletonList(function), DateTimeZone.UTC,
                "events-", "y", "yyyyMMdd"
        );

        IngestDocument document = new IngestDocument("_index", "_type", "_id", null, null,
                Collections.singletonMap("_field", "2016-04-25T12:24:20.101Z"));
        processor.execute(document);
        assertThat(document.getSourceAndMetadata().get("_index"), equalTo("<events-{20160425||/y{yyyyMMdd|UTC}}>"));
    }

    public void testTAI64N()throws Exception {
        Function<String, DateTime> function = DateFormat.Tai64n.getFunction(null, DateTimeZone.UTC, null);
        DateIndexNameProcessor dateProcessor = new DateIndexNameProcessor("_tag", "_field", Collections.singletonList(function),
                DateTimeZone.UTC, "events-", "m", "yyyyMMdd");
        IngestDocument document = new IngestDocument("_index", "_type", "_id", null, null,
                Collections.singletonMap("_field", (randomBoolean() ? "@" : "") + "4000000050d506482dbdf024"));
        dateProcessor.execute(document);
        assertThat(document.getSourceAndMetadata().get("_index"), equalTo("<events-{20121222||/m{yyyyMMdd|UTC}}>"));
    }

    public void testUnixMs()throws Exception {
        Function<String, DateTime> function = DateFormat.UnixMs.getFunction(null, DateTimeZone.UTC, null);
        DateIndexNameProcessor dateProcessor = new DateIndexNameProcessor("_tag", "_field", Collections.singletonList(function),
                DateTimeZone.UTC, "events-", "m", "yyyyMMdd");
        IngestDocument document = new IngestDocument("_index", "_type", "_id", null, null,
                Collections.singletonMap("_field", "1000500"));
        dateProcessor.execute(document);
        assertThat(document.getSourceAndMetadata().get("_index"), equalTo("<events-{19700101||/m{yyyyMMdd|UTC}}>"));
    }

    public void testUnix()throws Exception {
        Function<String, DateTime> function = DateFormat.Unix.getFunction(null, DateTimeZone.UTC, null);
        DateIndexNameProcessor dateProcessor = new DateIndexNameProcessor("_tag", "_field", Collections.singletonList(function),
                DateTimeZone.UTC, "events-", "m", "yyyyMMdd");
        IngestDocument document = new IngestDocument("_index", "_type", "_id", null, null,
                Collections.singletonMap("_field", "1000.5"));
        dateProcessor.execute(document);
        assertThat(document.getSourceAndMetadata().get("_index"), equalTo("<events-{19700101||/m{yyyyMMdd|UTC}}>"));
    }

}