/*
 *
 * 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;

import org.junit.BeforeClass;
import org.junit.Test;

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

import static org.junit.Assert.*;

public class AllowMultiQueriesTest extends BaseTest {
    /**
     * Tables initialisation.
     *
     * @throws SQLException exception
     */
    @BeforeClass()
    public static void initClass() throws SQLException {
        createTable("AllowMultiQueriesTest", "id int not null primary key auto_increment, test varchar(10)");
        createTable("AllowMultiQueriesTest2", "id int not null primary key auto_increment, test varchar(10)");
        if (testSingleHost) {
            try (Statement stmt = sharedConnection.createStatement()) {
                stmt.execute("INSERT INTO AllowMultiQueriesTest(test) VALUES ('a'), ('b')");
            }
        }
    }


    @Test
    public void allowMultiQueriesSingleTest() throws SQLException {
        try (Connection connection = setConnection("&allowMultiQueries=true")) {
            try (Statement statement = connection.createStatement()) {
                statement.execute("SELECT 1; SELECT 2; SELECT 3;");
                int counter = 1;
                do {
                    ResultSet resultSet = statement.getResultSet();
                    assertEquals(-1, statement.getUpdateCount());
                    assertTrue(resultSet.next());
                    assertEquals(counter++, resultSet.getInt(1));
                } while (statement.getMoreResults());
                assertEquals(4, counter);
            }
        }
    }

    @Test
    public void checkMultiGeneratedKeys() throws SQLException {
        try (Connection connection = setConnection("&allowMultiQueries=true")) {
            Statement stmt = connection.createStatement();
            stmt.execute("SELECT 1; SET @TOTO=3; SELECT 2", Statement.RETURN_GENERATED_KEYS);
            ResultSet rs = stmt.getResultSet();
            assertTrue(rs.next());
            assertEquals(1, rs.getInt(1));
            assertFalse(stmt.getMoreResults());
            stmt.getGeneratedKeys();
            assertTrue(stmt.getMoreResults());
            rs = stmt.getResultSet();
            assertTrue(rs.next());
            assertEquals(2, rs.getInt(1));
        }
    }

    @Test
    public void allowMultiQueriesFetchTest() {
        try (Connection connection = setConnection("&allowMultiQueries=true")) {
            try (Statement statement = connection.createStatement()) {
                statement.setFetchSize(1);
                statement.execute("SELECT * from AllowMultiQueriesTest;SELECT * from AllowMultiQueriesTest;");
                do {
                    ResultSet resultSet = statement.getResultSet();
                    assertEquals(-1, statement.getUpdateCount());
                    assertTrue(resultSet.next());
                    assertEquals("a", resultSet.getString(2));
                } while (statement.getMoreResults());
            }
            try (Statement statement = connection.createStatement()) {
                statement.execute("SELECT 1");
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    @Test
    public void allowMultiQueriesFetchKeepTest() throws SQLException {
        try (Connection connection = setConnection("&allowMultiQueries=true")) {
            try (Statement statement = connection.createStatement()) {
                statement.setFetchSize(1);
                statement.execute("SELECT * from AllowMultiQueriesTest;SELECT 3;");
                ResultSet rs1 = statement.getResultSet();
                assertTrue(statement.getMoreResults(Statement.KEEP_CURRENT_RESULT));
                assertTrue(rs1.next());
                assertEquals("a", rs1.getString(2));

                ResultSet rs = statement.getResultSet();
                assertTrue(rs.next());
                assertEquals(3, rs.getInt(1));
            }
        }
    }

    @Test
    public void allowMultiQueriesFetchCloseTest() throws SQLException {
        try (Connection connection = setConnection("&allowMultiQueries=true")) {
            try (Statement statement = connection.createStatement()) {
                statement.setFetchSize(1);
                statement.execute("SELECT * from AllowMultiQueriesTest;SELECT * from AllowMultiQueriesTest;SELECT 3;");
                ResultSet rs1 = statement.getResultSet();
                assertTrue(statement.getMoreResults(Statement.CLOSE_CURRENT_RESULT));
                try {
                    rs1.next();
                    fail("Must have thrown exception, since closed");
                } catch (SQLException sqle) {
                    assertTrue(sqle.getMessage().contains("Operation not permit on a closed resultSet"));
                }

                rs1 = statement.getResultSet();
                assertTrue(statement.getMoreResults(Statement.KEEP_CURRENT_RESULT));
                assertTrue(rs1.next());
                assertEquals("a", rs1.getString(2));

                ResultSet rs = statement.getResultSet();
                assertTrue(rs.next());
                assertEquals(3, rs.getInt(1));
            }
        }
    }


    @Test
    public void allowMultiQueriesFetchInsertSelectTest() throws SQLException {
        try (Connection connection = setConnection("&allowMultiQueries=true")) {
            try (Statement statement = connection.createStatement()) {
                statement.setFetchSize(1);
                statement.execute("INSERT INTO AllowMultiQueriesTest2(test) VALUES ('a'), ('b');SELECT * from AllowMultiQueriesTest;SELECT 3;");
            }
        }
    }

}
