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 * 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.
 */

package org.elasticsearch.index.mapper;

import org.elasticsearch.Version;
import org.elasticsearch.cluster.metadata.IndexMetaData;
import org.elasticsearch.common.bytes.BytesArray;
import org.elasticsearch.common.compress.CompressedXContent;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.xcontent.XContentFactory;
import org.elasticsearch.common.xcontent.XContentType;
import org.elasticsearch.index.mapper.DocumentMapper;
import org.elasticsearch.index.mapper.DocumentMapperParser;
import org.elasticsearch.index.mapper.MapperParsingException;
import org.elasticsearch.index.mapper.MapperService.MergeReason;
import org.elasticsearch.index.mapper.ObjectMapper.Dynamic;
import org.elasticsearch.plugins.Plugin;
import org.elasticsearch.test.ESSingleNodeTestCase;
import org.elasticsearch.test.InternalSettingsPlugin;
import org.elasticsearch.test.VersionUtils;

import java.io.IOException;
import java.util.Collection;

import static com.carrotsearch.randomizedtesting.RandomizedTest.getRandom;
import static org.hamcrest.Matchers.containsString;

public class ObjectMapperTests extends ESSingleNodeTestCase {
    public void testDifferentInnerObjectTokenFailure() throws Exception {
        String mapping = XContentFactory.jsonBuilder().startObject().startObject("type")
                .endObject().endObject().string();

        DocumentMapper defaultMapper = createIndex("test").mapperService().documentMapperParser().parse("type", new CompressedXContent(mapping));
        IllegalArgumentException e = expectThrows(IllegalArgumentException.class, () -> {
            defaultMapper.parse(SourceToParse.source("test", "type", "1", new BytesArray(" {\n" +
                "      \"object\": {\n" +
                "        \"array\":[\n" +
                "        {\n" +
                "          \"object\": { \"value\": \"value\" }\n" +
                "        },\n" +
                "        {\n" +
                "          \"object\":\"value\"\n" +
                "        }\n" +
                "        ]\n" +
                "      },\n" +
                "      \"value\":\"value\"\n" +
                "    }"),
                    XContentType.JSON));
        });
        assertTrue(e.getMessage(), e.getMessage().contains("different type"));
    }

    public void testEmptyArrayProperties() throws Exception {
        String mapping = XContentFactory.jsonBuilder().startObject().startObject("type")
                .startArray("properties").endArray()
                .endObject().endObject().string();
        createIndex("test").mapperService().documentMapperParser().parse("type", new CompressedXContent(mapping));
    }

    public void testEmptyFieldsArrayMultiFields() throws Exception {
        String mapping = XContentFactory.jsonBuilder()
                                        .startObject()
                                            .startObject("tweet")
                                                .startObject("properties")
                                                    .startObject("name")
                                                        .field("type", "text")
                                                        .startArray("fields")
                                                        .endArray()
                                                    .endObject()
                                                .endObject()
                                            .endObject()
                                        .endObject()
                                        .string();
        createIndex("test").mapperService().documentMapperParser().parse("tweet", new CompressedXContent(mapping));
    }

    public void testFieldsArrayMultiFieldsShouldThrowException() throws Exception {
        String mapping = XContentFactory.jsonBuilder()
                .startObject()
                    .startObject("tweet")
                        .startObject("properties")
                            .startObject("name")
                                .field("type", "text")
                                .startArray("fields")
                                    .startObject().field("test", "string").endObject()
                                    .startObject().field("test2", "string").endObject()
                                .endArray()
                            .endObject()
                        .endObject()
                    .endObject()
                .endObject()
                .string();
        try {
            createIndex("test").mapperService().documentMapperParser().parse("tweet", new CompressedXContent(mapping));
            fail("Expected MapperParsingException");
        } catch(MapperParsingException e) {
            assertThat(e.getMessage(), containsString("expected map for property [fields]"));
            assertThat(e.getMessage(), containsString("but got a class java.util.ArrayList"));
        }
    }

    public void testEmptyFieldsArray() throws Exception {
        String mapping = XContentFactory.jsonBuilder()
                                        .startObject()
                                            .startObject("tweet")
                                                .startObject("properties")
                                                    .startArray("fields")
                                                    .endArray()
                                                .endObject()
                                            .endObject()
                                        .endObject()
                                        .string();
        createIndex("test").mapperService().documentMapperParser().parse("tweet", new CompressedXContent(mapping));
    }

    public void testFieldsWithFilledArrayShouldThrowException() throws Exception {
        String mapping = XContentFactory.jsonBuilder()
                .startObject()
                    .startObject("tweet")
                        .startObject("properties")
                            .startArray("fields")
                                .startObject().field("test", "string").endObject()
                                .startObject().field("test2", "string").endObject()
                            .endArray()
                        .endObject()
                    .endObject()
                .endObject()
                .string();
        try {
            createIndex("test").mapperService().documentMapperParser().parse("tweet", new CompressedXContent(mapping));
            fail("Expected MapperParsingException");
        } catch (MapperParsingException e) {
            assertThat(e.getMessage(), containsString("Expected map for property [fields]"));
        }
    }

    public void testFieldPropertiesArray() throws Exception {
        String mapping = XContentFactory.jsonBuilder()
                                        .startObject()
                                            .startObject("tweet")
                                                .startObject("properties")
                                                    .startObject("name")
                                                        .field("type", "text")
                                                        .startObject("fields")
                                                            .startObject("raw")
                                                                .field("type", "keyword")
                                                            .endObject()
                                                        .endObject()
                                                    .endObject()
                                                .endObject()
                                            .endObject()
                                        .endObject()
                                        .string();
        createIndex("test").mapperService().documentMapperParser().parse("tweet", new CompressedXContent(mapping));
    }

    public void testMerge() throws IOException {
        String mapping = XContentFactory.jsonBuilder().startObject()
                .startObject("type")
                    .startObject("properties")
                        .startObject("foo")
                            .field("type", "keyword")
                        .endObject()
                    .endObject()
                .endObject().endObject().string();
        MapperService mapperService = createIndex("test").mapperService();
        DocumentMapper mapper = mapperService.merge("type", new CompressedXContent(mapping), MergeReason.MAPPING_UPDATE, false);
        assertNull(mapper.root().includeInAll());
        assertNull(mapper.root().dynamic());
        String update = XContentFactory.jsonBuilder().startObject()
                .startObject("type")
                    .field("include_in_all", false)
                    .field("dynamic", "strict")
                .endObject().endObject().string();
        mapper = mapperService.merge("type", new CompressedXContent(update), MergeReason.MAPPING_UPDATE, false);
        assertFalse(mapper.root().includeInAll());
        assertEquals(Dynamic.STRICT, mapper.root().dynamic());
    }

    public void testEmptyName() throws Exception {
        String mapping = XContentFactory.jsonBuilder().startObject()
                .startObject("")
                    .startObject("properties")
                        .startObject("name")
                            .field("type", "text")
                        .endObject()
                    .endObject()
                .endObject().endObject().string();

        // Empty name not allowed in index created after 5.0
        IllegalArgumentException e = expectThrows(IllegalArgumentException.class, () -> {
            createIndex("test").mapperService().documentMapperParser().parse("", new CompressedXContent(mapping));
        });
        assertThat(e.getMessage(), containsString("name cannot be empty string"));
    }

    @Override
    protected Collection<Class<? extends Plugin>> getPlugins() {
        return pluginList(InternalSettingsPlugin.class);
    }
}
