/*
 * Copyright (c) 2008-2017, Hazelcast, Inc. All Rights Reserved.
 *
 * Licensed 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 com.hazelcast.query;

import com.hazelcast.internal.serialization.InternalSerializationService;
import com.hazelcast.internal.serialization.impl.DefaultSerializationServiceBuilder;
import com.hazelcast.nio.serialization.FieldType;
import com.hazelcast.nio.serialization.Portable;
import com.hazelcast.nio.serialization.PortableFactory;
import com.hazelcast.nio.serialization.PortableReader;
import com.hazelcast.nio.serialization.PortableWriter;
import com.hazelcast.query.impl.QueryEntry;
import com.hazelcast.query.impl.getters.Extractors;
import com.hazelcast.test.HazelcastSerialClassRunner;
import com.hazelcast.test.annotation.QuickTest;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.junit.runner.RunWith;

import java.io.IOException;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;

import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;

@RunWith(HazelcastSerialClassRunner.class)
@Category(QuickTest.class)
public class PortablePredicatesTest {

    private static final short FACTORY_ID = 1;

    private final InternalSerializationService serializationService = new DefaultSerializationServiceBuilder()
            .addPortableFactory(FACTORY_ID, new TestPortableFactory())
            .build();

    @Test
    public void testPortablePredicate() {
        PortableData data = createData("1", "Clark", "Kent", "Superman", 100);
        assertTrue(new SqlPredicate("strength >= 75").apply(toQueryEntry("1", data)));
        assertTrue(new SqlPredicate("firstName like C% and lastName like K%").apply(toQueryEntry("1", data)));
        assertFalse(new SqlPredicate("character == 'Bizarro'").apply(toQueryEntry("1", data)));
    }

    private PortableData createData(String id, String firstName, String lastName, String character, long strength) {
        PortableData modelData = new PortableData();
        modelData.put("id", id);
        modelData.put("firstName", firstName);
        modelData.put("lastName", lastName);
        modelData.put("character", character);
        modelData.put("strength", strength);
        return modelData;
    }

    private QueryEntry toQueryEntry(Object key, Object value) {
        return new QueryEntry(serializationService, serializationService.toData(key), value, Extractors.empty());
    }

    class TestPortableFactory implements PortableFactory {

        @Override
        public Portable create(int classId) {
            if (PortableData.CLASS_ID == classId) {
                return new PortableData();
            } else {
                return null;
            }
        }
    }

    private static class PortableData implements Portable {

        public static final int CLASS_ID = 1;

        private final Map<String, Object> data = new HashMap<String, Object>();

        @Override
        public int getClassId() {
            return CLASS_ID;
        }

        @Override
        public int getFactoryId() {
            return 1;
        }

        public void put(String key, Object value) {
            data.put(key, value);
        }

        public Object get(String key) {
            return data.get(key);
        }

        @Override
        public void readPortable(PortableReader reader) throws IOException {

            Set<String> fieldNames = reader.getFieldNames();
            for (String fieldName : fieldNames) {
                FieldType fieldType = reader.getFieldType(fieldName);
                switch (fieldType) {
                    case UTF:
                        data.put(fieldName, reader.readUTF(fieldName));
                        break;
                    case LONG:
                        data.put(fieldName, reader.readLong(fieldName));
                        break;
                    case BOOLEAN:
                        data.put(fieldName, reader.readBoolean(fieldName));
                        break;
                    default:
                        throw new IOException("Unsupported field type " + fieldType);
                }
            }
        }

        @Override
        public void writePortable(PortableWriter writer) throws IOException {
            for (String key : data.keySet()) {
                Object object = data.get(key);
                if (object instanceof String) {
                    writer.writeUTF(key, (String) object);
                } else if (object instanceof Long) {
                    writer.writeLong(key, (Long) object);
                } else if (object instanceof Date) {
                    writer.writeLong(key, ((Date) object).getTime());
                } else if (object instanceof Boolean) {
                    writer.writeBoolean(key, (Boolean) object);
                } else {
                    throw new IOException("Unsupported field type " + object.getClass());
                }
            }
        }
    }
}