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 * 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
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package org.elasticsearch.index.mapper.completion;

import org.elasticsearch.common.compress.CompressedXContent;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.common.xcontent.XContentParser;
import org.elasticsearch.common.xcontent.json.JsonXContent;
import org.elasticsearch.index.mapper.DocumentMapper;
import org.elasticsearch.index.mapper.FieldMapper;
import org.elasticsearch.index.mapper.core.CompletionFieldMapper;
import org.elasticsearch.test.ESSingleNodeTestCase;
import org.junit.Test;

import java.io.IOException;
import java.util.Map;

import static org.elasticsearch.common.xcontent.XContentFactory.jsonBuilder;
import static org.hamcrest.Matchers.instanceOf;
import static org.hamcrest.Matchers.is;

public class CompletionFieldMapperTests extends ESSingleNodeTestCase {

    @Test
    public void testDefaultConfiguration() throws IOException {
        String mapping = jsonBuilder().startObject().startObject("type1")
                .startObject("properties").startObject("completion")
                .field("type", "completion")
                .endObject().endObject()
                .endObject().endObject().string();

        DocumentMapper defaultMapper = createIndex("test").mapperService().documentMapperParser().parse("type1", new CompressedXContent(mapping));

        FieldMapper fieldMapper = defaultMapper.mappers().getMapper("completion");
        assertThat(fieldMapper, instanceOf(CompletionFieldMapper.class));

        CompletionFieldMapper completionFieldMapper = (CompletionFieldMapper) fieldMapper;
        assertThat(completionFieldMapper.isStoringPayloads(), is(false));
    }

    @Test
    public void testThatSerializationIncludesAllElements() throws Exception {
        String mapping = jsonBuilder().startObject().startObject("type1")
                .startObject("properties").startObject("completion")
                .field("type", "completion")
                .field("analyzer", "simple")
                .field("search_analyzer", "standard")
                .field("payloads", true)
                .field("preserve_separators", false)
                .field("preserve_position_increments", true)
                .field("max_input_length", 14)

                .endObject().endObject()
                .endObject().endObject().string();

        DocumentMapper defaultMapper = createIndex("test").mapperService().documentMapperParser().parse("type1", new CompressedXContent(mapping));

        FieldMapper fieldMapper = defaultMapper.mappers().getMapper("completion");
        assertThat(fieldMapper, instanceOf(CompletionFieldMapper.class));

        CompletionFieldMapper completionFieldMapper = (CompletionFieldMapper) fieldMapper;
        XContentBuilder builder = jsonBuilder().startObject();
        completionFieldMapper.toXContent(builder, null).endObject();
        builder.close();
        Map<String, Object> serializedMap;
        try (XContentParser parser = JsonXContent.jsonXContent.createParser(builder.bytes())) {
            serializedMap = parser.map();
        }
        Map<String, Object> configMap = (Map<String, Object>) serializedMap.get("completion");
        assertThat(configMap.get("analyzer").toString(), is("simple"));
        assertThat(configMap.get("search_analyzer").toString(), is("standard"));
        assertThat(Boolean.valueOf(configMap.get("payloads").toString()), is(true));
        assertThat(Boolean.valueOf(configMap.get("preserve_separators").toString()), is(false));
        assertThat(Boolean.valueOf(configMap.get("preserve_position_increments").toString()), is(true));
        assertThat(Integer.valueOf(configMap.get("max_input_length").toString()), is(14));
    }

    @Test
    public void testThatSerializationCombinesToOneAnalyzerFieldIfBothAreEqual() throws Exception {
        String mapping = jsonBuilder().startObject().startObject("type1")
                .startObject("properties").startObject("completion")
                .field("type", "completion")
                .endObject().endObject()
                .endObject().endObject().string();

        DocumentMapper defaultMapper = createIndex("test").mapperService().documentMapperParser().parse("type1",
                new CompressedXContent(mapping));

        FieldMapper fieldMapper = defaultMapper.mappers().getMapper("completion");
        assertThat(fieldMapper, instanceOf(CompletionFieldMapper.class));

        CompletionFieldMapper completionFieldMapper = (CompletionFieldMapper) fieldMapper;
        XContentBuilder builder = jsonBuilder().startObject();
        completionFieldMapper.toXContent(builder, null).endObject();
        builder.close();
        Map<String, Object> serializedMap;
        try (XContentParser parser = JsonXContent.jsonXContent.createParser(builder.bytes())) {
            serializedMap = parser.map();
    }
        Map<String, Object> configMap = (Map<String, Object>) serializedMap.get("completion");
        assertThat(configMap.get("analyzer").toString(), is("simple"));
    }

}