/*
 * Copyright 1999-2017 Alibaba Group Holding Ltd.
 *
 * 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.alibaba.druid.bvt.sql.mysql.select;

import com.alibaba.druid.DbType;
import com.alibaba.druid.sql.MysqlTest;
import com.alibaba.druid.sql.SQLUtils;
import com.alibaba.druid.sql.ast.SQLStatement;
import com.alibaba.druid.sql.dialect.mysql.parser.MySqlStatementParser;
import com.alibaba.druid.sql.dialect.mysql.visitor.MySqlSchemaStatVisitor;
import org.junit.Assert;

import java.util.List;

public class MySqlSelectTest_straight_join extends MysqlTest {
    public void test_0() throws Exception {
        String sql = "select count(*) from nation n1 join nation n2 on n1.nationkey = n2.nationkey straight_join nation n3 on n2.nationkey=n3.nationkey;";

        MySqlStatementParser parser = new MySqlStatementParser(sql);
        List<SQLStatement> statementList = parser.parseStatementList();
        SQLStatement stmt = statementList.get(0);

        print(statementList);

        Assert.assertEquals(1, statementList.size());

        String expected = "SELECT count(*)\n" +
                "FROM nation n1\n" +
                "\tJOIN nation n2 ON n1.nationkey = n2.nationkey\n" +
                "\tSTRAIGHT_JOIN nation n3 ON n2.nationkey = n3.nationkey;";

        Assert.assertEquals(expected, stmt.toString());

        MySqlSchemaStatVisitor visitor = new MySqlSchemaStatVisitor();
        stmt.accept(visitor);

        System.out.println("Tables : " + visitor.getTables());
        System.out.println("fields : " + visitor.getColumns());
//        System.out.println("coditions : " + visitor.getConditions());
//        System.out.println("orderBy : " + visitor.getOrderByColumns());

        Assert.assertEquals(1, visitor.getTables().size());
        Assert.assertEquals(1, visitor.getColumns().size());

        Assert.assertTrue(visitor.containsColumn("nation", "nationkey"));
    }

    public void test_1() throws Exception {
        String sql = "select count(*) from nation n1 straight_join nation n2 on n1.nationkey = n2.nationkey straight_join nation n3 on n2.nationkey=n3.nationkey;";

        SQLStatement stmt = SQLUtils.parseSingleStatement(sql, DbType.mysql);

        System.out.println(stmt.toString());

        String expected = "SELECT count(*)\n" +
                "FROM nation n1\n" +
                "\tSTRAIGHT_JOIN nation n2 ON n1.nationkey = n2.nationkey\n" +
                "\tSTRAIGHT_JOIN nation n3 ON n2.nationkey = n3.nationkey;";

        Assert.assertEquals(expected, stmt.toString());

        MySqlSchemaStatVisitor visitor = new MySqlSchemaStatVisitor();
        stmt.accept(visitor);

        System.out.println("Tables : " + visitor.getTables());
        System.out.println("fields : " + visitor.getColumns());
//        System.out.println("coditions : " + visitor.getConditions());
//        System.out.println("orderBy : " + visitor.getOrderByColumns());

        Assert.assertEquals(1, visitor.getTables().size());
        Assert.assertEquals(1, visitor.getColumns().size());

        Assert.assertTrue(visitor.containsColumn("nation", "nationkey"));
    }
}
