/*
 * Copyright 2014 Higher Frequency Trading http://www.higherfrequencytrading.com
 *
 * 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 net.openhft.chronicle.map;

import net.openhft.lang.io.ByteBufferBytes;
import net.openhft.lang.values.IntValue;
import net.openhft.lang.values.IntValue$$Native;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

import java.io.Closeable;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.nio.ByteBuffer;
import java.util.Random;

import static net.openhft.chronicle.map.Builder.getPersistenceFile;
import static net.openhft.chronicle.map.TCPSocketReplication4WayMapTest.newTcpSocketShmBuilder;
import static net.openhft.chronicle.map.TCPSocketReplication4WayMapTest.newTcpSocketShmIntValueString;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;

/**
 * Test  ReplicatedChronicleMap where the Replicated is over a TCP Socket
 *
 * @author Rob Austin.
 */

public class TCPSocketReplicationIntValueTest {


    private ChronicleMapBuilder<IntValue, CharSequence> map1Builder;
    private ChronicleMap<IntValue, CharSequence> map1;
    private ChronicleMap<IntValue, CharSequence> map2;
    private IntValue$$Native value;

    @Before
    public void setup() throws IOException {
        value = new IntValue$$Native();
        value.bytes(new ByteBufferBytes(ByteBuffer.allocateDirect(4)), 0);
        map1Builder = newTcpSocketShmBuilder(IntValue.class, CharSequence.class,
                (byte) 1, 8076, new InetSocketAddress("localhost", 8077));
        map1 = map1Builder.keyMarshaller(ByteableIntValueMarshaller.INSTANCE)
                .create(getPersistenceFile());
        map2 = newTcpSocketShmIntValueString((byte) 2, 8077);
    }


    @After
    public void tearDown() throws InterruptedException {

        for (final Closeable closeable : new Closeable[]{map1, map2}) {
            try {
                closeable.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }


    @Test
    public void test3() throws IOException, InterruptedException {

        map1.put(set(5), "EXAMPLE-2");

        // allow time for the recompilation to resolve
        waitTillEqual(5000);

        assertEquals(map1, map2);
        assertTrue(!map1.isEmpty());
    }

    private IntValue$$Native set(int x) {

        value.setValue(x);
        return value;
    }


    // see https://higherfrequencytrading.atlassian.net/browse/HCOLL-148
    @Test
    public void test() throws IOException, InterruptedException {

        map1.put(set(1), "EXAMPLE-1");
        map1.put(set(2), "EXAMPLE-2");
        map1.put(set(3), "EXAMPLE-1");

        map2.put(set(5), "EXAMPLE-2");
        map2.put(set(6), "EXAMPLE-2");

        map1.remove(set(2));
        map2.remove(set(3));
        map1.remove(set(3));
        map2.put(set(5), "EXAMPLE-2");

        // allow time for the recompilation to resolve
        waitTillEqual(5000);

        assertEquals(map1, map2);
        assertTrue(!map1.isEmpty());

    }


    @Test
    public void testBufferOverflow() throws IOException, InterruptedException {

        for (int i = 0; i < 1000; i++) {
            map1.put(set(i), "EXAMPLE-1");
        }

        // allow time for the recompilation to resolve
        waitTillEqual(5000);

        assertEquals(map1, map2);
        assertTrue(!map2.isEmpty());

    }

    /**
     * * waits until map1 and map2 show the same value
     *
     * @param timeOutMs timeout in milliseconds
     * @throws InterruptedException
     */
    private void waitTillEqual(final int timeOutMs) throws InterruptedException {
        int t = 0;
        for (; t < timeOutMs; t++) {
            if (map1.equals(map2))
                break;
            Thread.sleep(1);
        }

    }


    @Test
    public void testSoakTestWithRandomData() throws IOException, InterruptedException {

        final long start = System.currentTimeMillis();
        System.out.print("SoakTesting ");
        for (int j = 1; j < 100 * 1000; j++) {
            if (j % 5000 == 0)
                System.out.print(".");
            Random rnd = new Random(j);
            for (int i = 1; i < 10; i++) {

                final int select = rnd.nextInt(2);
                final ChronicleMap<IntValue, CharSequence> map = select > 0 ? map1 : map2;


                switch (rnd.nextInt(2)) {
                    case 0:
                        map.put(set(rnd.nextInt(1000)) /* + select * 100 */, "test");
                        break;
                    case 1:
                        map.remove(set(rnd.nextInt(1000)) /*+ select * 100 */);
                        break;
                }
            }

        }

        waitTillEqual(5000);

        final long time = System.currentTimeMillis() - start;

        //assertTrue("timeTaken="+time, time < 2200);
        System.out.println("\ntime taken millis=" + time);

    }

}