/*
 *
 * MariaDB Client for Java
 *
 * Copyright (c) 2012-2014 Monty Program Ab.
 * Copyright (c) 2015-2017 MariaDB Ab.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License along
 * with this library; if not, write to Monty Program Ab info@montyprogram.com.
 *
 * This particular MariaDB Client for Java file is work
 * derived from a Drizzle-JDBC. Drizzle-JDBC file which is covered by subject to
 * the following copyright and notice provisions:
 *
 * Copyright (c) 2009-2011, Marcus Eriksson
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 * Redistributions of source code must retain the above copyright notice, this list
 * of conditions and the following disclaimer.
 *
 * Redistributions in binary form must reproduce the above copyright notice, this
 * list of conditions and the following disclaimer in the documentation and/or
 * other materials provided with the distribution.
 *
 * Neither the name of the driver nor the names of its contributors may not be
 * used to endorse or promote products derived from this software without specific
 * prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS  AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
 * OF SUCH DAMAGE.
 *
 */

package org.mariadb.jdbc.failover;

import org.junit.Assume;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
import org.mariadb.jdbc.internal.protocol.Protocol;
import org.mariadb.jdbc.internal.util.constant.HaMode;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.sql.Statement;

import static org.junit.Assert.*;

public class MonoServerFailoverTest extends BaseMonoServer {

    /**
     * Initialisation.
     */
    @BeforeClass()
    public static void beforeClass2() {
        Assume.assumeTrue(initialUrl != null);
    }

    /**
     * Initialisation.
     */
    @Before
    public void init() {
        Assume.assumeTrue(initialUrl != null);
        defaultUrl = initialUrl;
        currentType = HaMode.NONE;
    }

    @Test
    public void checkClosedConnectionAfterFailover() throws Throwable {
        try (Connection connection = getNewConnection("&retriesAllDown=6", true)) {

            Statement st = connection.createStatement();
            int masterServerId = getServerId(connection);
            stopProxy(masterServerId);
            try {
                st.execute("SELECT 1");
                fail();
            } catch (SQLException e) {
                //normal exception
            }
            assertTrue(st.isClosed());
            restartProxy(masterServerId);
            try {
                st = connection.createStatement();
                st.execute("SELECT 1");
            } catch (SQLException e) {
                fail();
            }
        }

    }

    @Test
    public void checkErrorAfterDeconnection() throws Throwable {
        try (Connection connection = getNewConnection("&retriesAllDown=6", true)) {

            Statement st = connection.createStatement();
            int masterServerId = getServerId(connection);
            stopProxy(masterServerId);
            try {
                st.execute("SELECT 1");
                fail();
            } catch (SQLException e) {
                //normal exception
            }

            restartProxy(masterServerId);
            try {
                st.execute("SELECT 1");
                fail();
            } catch (SQLException e) {
                //statement must be closed -> error
            }
            assertTrue(connection.isClosed());
        }
    }


    @Test
    public void checkAutoReconnectDeconnection() throws Throwable {
        try (Connection connection = getNewConnection("&retriesAllDown=6", true)) {

            Statement st = connection.createStatement();
            int masterServerId = getServerId(connection);
            stopProxy(masterServerId);
            try {
                st.execute("SELECT 1");
                fail();
            } catch (SQLException e) {
                //normal exception
            }

            restartProxy(masterServerId);
            try {
                //with autoreconnect -> not closed
                st = connection.createStatement();
                st.execute("SELECT 1");
            } catch (SQLException e) {
                fail();
            }
            assertFalse(connection.isClosed());
        }

    }

    /**
     * CONJ-120 Fix Connection.isValid method
     *
     * @throws Exception exception
     */
    @Test
    public void isValidConnectionThatIsKilledExternally() throws Throwable {
        try (Connection connection = getNewConnection()) {
            connection.setCatalog("mysql");
            Protocol protocol = getProtocolFromConnection(connection);
            try (Connection killerConnection = getNewConnection()) {
                Statement killerStatement = killerConnection.createStatement();
                long threadId = protocol.getServerThreadId();
                killerStatement.execute("KILL CONNECTION " + threadId);
                boolean isValid = connection.isValid(0);
                assertFalse(isValid);
            }
        }
    }

    @Test
    public void checkPrepareStatement() throws Throwable {
        try (Connection connection = getNewConnection("&retriesAllDown=6", true)) {
            Statement stmt = connection.createStatement();
            stmt.execute("drop table  if exists failt1");
            stmt.execute("create table failt1 (id int not null primary key auto_increment, tt int)");


            PreparedStatement preparedStatement = connection.prepareStatement("insert into failt1(id, tt) values (?,?)");

            int masterServerId = getServerId(connection);
            stopProxy(masterServerId);

            preparedStatement.setInt(1, 1);
            preparedStatement.setInt(2, 1);
            preparedStatement.addBatch();
            try {
                preparedStatement.executeBatch();
                fail();
            } catch (SQLException e) {
                //normal exception
            }
            restartProxy(masterServerId);
        }
    }

}
