/*
 *
 * 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.Test;

import java.sql.*;

import static org.junit.Assert.*;

public class ClientPreparedStatementParsingTest extends BaseTest {

    private boolean checkParsing(String sql, int paramNumber, boolean rewritable, boolean allowMultiqueries, String[] partsRewrite,
                              String[] partsMulti) throws Exception {

        MariaDbPreparedStatementClient statement = new MariaDbPreparedStatementClient((MariaDbConnection) sharedConnection, sql,
                ResultSet.FETCH_FORWARD, ResultSet.CONCUR_READ_ONLY, Statement.NO_GENERATED_KEYS);
        assertEquals(paramNumber, statement.getParameterCount());

        if (sharedIsRewrite()) {
            for (int i = 0; i < partsRewrite.length; i++) {
                assertEquals(partsRewrite[i], new String(statement.getPrepareResult().getQueryParts().get(i)));
            }
            assertEquals(rewritable, statement.getPrepareResult().isQueryMultiValuesRewritable());
        } else {
            for (int i = 0; i < partsMulti.length; i++) {
                assertEquals(partsMulti[i], new String(statement.getPrepareResult().getQueryParts().get(i)));
            }
            assertEquals(allowMultiqueries, statement.getPrepareResult().isQueryMultipleRewritable());
        }
        return true;
    }

    @Test
    public void testRewritableWithConstantParameter() throws Exception {
        assertTrue(checkParsing("INSERT INTO TABLE(col1,col2,col3,col4, col5) VALUES (9, ?, 5, ?, 8) ON DUPLICATE KEY UPDATE col2=col2+10",
                2, true, true,
                new String[]{
                        "INSERT INTO TABLE(col1,col2,col3,col4, col5) VALUES",
                        " (9, ",
                        ", 5, ",
                        ", 8)",
                        " ON DUPLICATE KEY UPDATE col2=col2+10"},
                new String[]{
                        "INSERT INTO TABLE(col1,col2,col3,col4, col5) VALUES (9, ",
                        ", 5, ",
                        ", 8) ON DUPLICATE KEY UPDATE col2=col2+10"}));
    }

    @Test
    public void testComment() throws Exception {
        assertTrue(checkParsing("/* insert Select INSERT INTO tt VALUES (?,?,?,?)  */"
                        + " INSERT into "
                        + "/* insert Select INSERT INTO tt VALUES (?,?,?,?)  */"
                        + " tt VALUES "
                        + "/* insert Select INSERT INTO tt VALUES (?,?,?,?)  */"
                        + " (?) "
                        + "/* insert Select INSERT INTO tt VALUES (?,?,?,?)  */",
                1, true, true,
                new String[]{
                        "/* insert Select INSERT INTO tt VALUES (?,?,?,?)  */"
                                + " INSERT into "
                                + "/* insert Select INSERT INTO tt VALUES (?,?,?,?)  */"
                                + " tt VALUES",
                        " /* insert Select INSERT INTO tt VALUES (?,?,?,?)  */ (",
                        ")",
                        " /* insert Select INSERT INTO tt VALUES (?,?,?,?)  */"},
                new String[]{"/* insert Select INSERT INTO tt VALUES (?,?,?,?)  */"
                        + " INSERT into "
                        + "/* insert Select INSERT INTO tt VALUES (?,?,?,?)  */"
                        + " tt VALUES "
                        + "/* insert Select INSERT INTO tt VALUES (?,?,?,?)  */"
                        + " (",
                        ") "
                                + "/* insert Select INSERT INTO tt VALUES (?,?,?,?)  */"}));
    }

    @Test
    public void testRewritableWithConstantParameterAndParamAfterValue() throws Exception {
        assertTrue(checkParsing("INSERT INTO TABLE(col1,col2,col3,col4, col5) VALUES (9, ?, 5, ?, 8) ON DUPLICATE KEY UPDATE col2=?",
                3, false, true,
                new String[]{
                        "INSERT INTO TABLE(col1,col2,col3,col4, col5) VALUES",
                        " (9, ",
                        ", 5, ",
                        ", 8) ON DUPLICATE KEY UPDATE col2=",
                        "",
                        ""},
                new String[]{"INSERT INTO TABLE(col1,col2,col3,col4, col5) VALUES (9, ",
                        ", 5, ",
                        ", 8) ON DUPLICATE KEY UPDATE col2=",
                        ""}));
    }

    @Test
    public void testRewritableMultipleInserts() throws Exception {
        assertTrue(checkParsing("INSERT INTO TABLE(col1,col2) VALUES (?, ?), (?, ?)",
                4, false, true,
                new String[]{
                        "INSERT INTO TABLE(col1,col2) VALUES",
                        " (",
                        ", ",
                        "), (",
                        ", ",
                        ")",
                        ""},
                new String[]{"INSERT INTO TABLE(col1,col2) VALUES (",
                        ", ",
                        "), (",
                        ", ",
                        ")"}));
    }


    @Test
    public void testCall() throws Exception {
        assertTrue(checkParsing("CALL dsdssd(?,?)",
                2, false, true,
                new String[]{
                        "CALL dsdssd(",
                        "",
                        ",",
                        ")",
                        ""},
                new String[]{"CALL dsdssd(",
                        ",",
                        ")"}));
    }

    @Test
    public void testUpdate() throws Exception {
        assertTrue(checkParsing("UPDATE MultiTestt4 SET test = ? WHERE test = ?",
                2, false, true,
                new String[]{
                        "UPDATE MultiTestt4 SET test = ",
                        "",
                        " WHERE test = ",
                        "",
                        ""},
                new String[]{"UPDATE MultiTestt4 SET test = ",
                        " WHERE test = ",
                        ""}));
    }

    @Test
    public void testInsertSelect() throws Exception {
        assertTrue(checkParsing("insert into test_insert_select ( field1) (select  TMP.field1 from "
                        + "(select CAST(? as binary) `field1` from dual) TMP)",
                1, false, true,
                new String[]{
                        "insert into test_insert_select ( field1) (select  TMP.field1 from (select CAST(",
                        "",
                        " as binary) `field1` from dual) TMP)",
                        ""},
                new String[]{"insert into test_insert_select ( field1) (select  TMP.field1 from (select CAST(",
                        " as binary) `field1` from dual) TMP)"}));
    }

    @Test
    public void testWithoutParameter() throws Exception {
        assertTrue(checkParsing("SELECT testFunction()",
                0, false, true,
                new String[]{
                        "SELECT testFunction()",
                        "",
                        ""},
                new String[]{"SELECT testFunction()"}));
    }

    @Test
    public void testWithoutParameterAndParenthesis() throws Exception {
        assertTrue(checkParsing("SELECT 1",
                0, false, true,
                new String[]{
                        "SELECT 1",
                        "",
                        ""},
                new String[]{"SELECT 1"}));
    }

    @Test
    public void testWithoutParameterAndValues() throws Exception {
        assertTrue(checkParsing("INSERT INTO tt VALUES (1)",
                0, true, true,
                new String[]{
                        "INSERT INTO tt VALUES",
                        " (1)",
                        ""},
                new String[]{"INSERT INTO tt VALUES (1)"}));
    }

    @Test
    public void testSemiColon() throws Exception {
        assertTrue(checkParsing("INSERT INTO tt (tt) VALUES (?); INSERT INTO tt (tt) VALUES ('multiple')",
                1, false, true,
                new String[]{
                        "INSERT INTO tt (tt) VALUES",
                        " (",
                        ")",
                        "; INSERT INTO tt (tt) VALUES ('multiple')"},
                new String[]{"INSERT INTO tt (tt) VALUES (",
                        "); INSERT INTO tt (tt) VALUES ('multiple')"}));
    }

    @Test
    public void testSemicolonRewritableIfAtEnd() throws Exception {
        assertTrue(checkParsing("INSERT INTO table (column1) VALUES (?); ",
                1, true, false,
                new String[]{
                        "INSERT INTO table (column1) VALUES",
                        " (",
                        ")",
                        "; "},
                new String[]{"INSERT INTO table (column1) VALUES (",
                        "); "}));
    }

    @Test
    public void testSemicolonNotRewritableIfNotAtEnd() throws Exception {
        assertTrue(checkParsing("INSERT INTO table (column1) VALUES (?); SELECT 1",
                1, false, true,
                new String[]{
                        "INSERT INTO table (column1) VALUES",
                        " (",
                        ")",
                        "; SELECT 1"},
                new String[]{"INSERT INTO table (column1) VALUES (",
                        "); SELECT 1"}));
    }

    @Test
    public void testError() throws Exception {
        assertTrue(checkParsing("INSERT INTO tt (tt) VALUES (?); INSERT INTO tt (tt) VALUES ('multiple')",
                1, false, true,
                new String[]{
                        "INSERT INTO tt (tt) VALUES",
                        " (",
                        ")",
                        "; INSERT INTO tt (tt) VALUES ('multiple')"},
                new String[]{"INSERT INTO tt (tt) VALUES (",
                        "); INSERT INTO tt (tt) VALUES ('multiple')"}));
    }


    @Test
    public void testLineComment() throws Exception {
        assertTrue(checkParsing("INSERT INTO tt (tt) VALUES (?) --fin",
                1, true, false,
                new String[]{
                        "INSERT INTO tt (tt) VALUES",
                        " (",
                        ")",
                        " --fin"},
                new String[]{"INSERT INTO tt (tt) VALUES (",
                        ") --fin"}));
    }

    @Test
    public void testLineCommentFinished() throws Exception {
        assertTrue(checkParsing("INSERT INTO tt (tt) VALUES --fin\n (?)",
                1, true, true,
                new String[]{
                        "INSERT INTO tt (tt) VALUES",
                        " --fin\n (",
                        ")",
                        ""},
                new String[]{"INSERT INTO tt (tt) VALUES --fin\n (",
                        ")"}));
    }

    @Test
    public void testSelect1() throws Exception {
        assertTrue(checkParsing("SELECT 1",
                0, false, true,
                new String[]{
                        "SELECT 1",
                        "",
                        ""},
                new String[]{"SELECT 1"}));
    }

    @Test
    public void rewriteBatchedError() throws Exception {
        try (Connection connection = setConnection("&rewriteBatchedStatements=true")) {
            PreparedStatement preparedStatement = connection.prepareStatement("INSERT INTO errorTable (a, b) VALUES (?, ?, ?)");

            preparedStatement.setString(1, "1");
            preparedStatement.setString(2, "2");
            preparedStatement.setString(3, "3");
            preparedStatement.addBatch();
            try {
                preparedStatement.executeBatch();
                fail("must have thrown error since parameters are not good");
            } catch (SQLException e) {
                assertTrue(e.getCause().getCause().getMessage().contains("Query is: INSERT INTO errorTable (a, b) VALUES (?, ?, ?)"));
            }
        }
    }

    @Test
    public void testLastInsertId() throws Exception {
        assertTrue(checkParsing("INSERT INTO tt (tt, tt2) VALUES (LAST_INSERT_ID(), ?)",
                1, false, true,
                new String[]{
                        "INSERT INTO tt (tt, tt2) VALUES",
                        " (LAST_INSERT_ID(), ",
                        ")",
                        ""},
                new String[]{"INSERT INTO tt (tt, tt2) VALUES (LAST_INSERT_ID(), ", ")"}));
    }


    @Test
    public void testValuesForPartition() throws Exception {
        assertTrue(checkParsing("ALTER table test_partitioning PARTITION BY RANGE COLUMNS( created_at ) "
                        + "(PARTITION test_p201605 VALUES LESS THAN ('2016-06-01'))",
                0, false, true,
                new String[]{
                        "ALTER table test_partitioning PARTITION BY RANGE COLUMNS( created_at ) "
                        + "(PARTITION test_p201605 VALUES",
                        " LESS THAN ('2016-06-01'))",
                        ""},
                new String[]{"ALTER table test_partitioning PARTITION BY RANGE COLUMNS( created_at ) "
                        + "(PARTITION test_p201605 VALUES LESS THAN ('2016-06-01'))"}));
    }
}
