/*
 * Copyright 1999-2018 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.db2;

import java.util.List;

import org.junit.Assert;

import com.alibaba.druid.sql.DB2Test;
import com.alibaba.druid.sql.SQLUtils;
import com.alibaba.druid.sql.ast.SQLStatement;
import com.alibaba.druid.sql.dialect.db2.parser.DB2StatementParser;
import com.alibaba.druid.sql.dialect.db2.visitor.DB2SchemaStatVisitor;
import com.alibaba.druid.stat.TableStat;
import com.alibaba.druid.stat.TableStat.Column;
import com.alibaba.druid.util.JdbcConstants;

public class DB2SelectTest_22 extends DB2Test {
    public void test_0() throws Exception {
        String sql = "SELECT ID,IDENTITY,BUSICODE"
                + " FROM BUSINESS_ENTERPRISE_BUSIINFO"
                + " WHERE SYSCODE= '603'"
                + " ORDER BY INTIME desc"
                + " FETCH first 1 rows only";

        DB2StatementParser parser = new DB2StatementParser(sql);
        List<SQLStatement> statementList = parser.parseStatementList();
        SQLStatement stmt = statementList.get(0);

        System.out.println(stmt);

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

        DB2SchemaStatVisitor visitor = new DB2SchemaStatVisitor();
        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(5, visitor.getColumns().size());
        Assert.assertEquals(1, visitor.getConditions().size());

        Assert.assertTrue(visitor.getTables().containsKey(new TableStat.Name("BUSINESS_ENTERPRISE_BUSIINFO")));

        Assert.assertTrue(visitor.getColumns().contains(new Column("BUSINESS_ENTERPRISE_BUSIINFO", "ID")));
        Assert.assertTrue(visitor.getColumns().contains(new Column("BUSINESS_ENTERPRISE_BUSIINFO", "IDENTITY")));
        Assert.assertTrue(visitor.getColumns().contains(new Column("BUSINESS_ENTERPRISE_BUSIINFO", "BUSICODE")));
        Assert.assertTrue(visitor.getColumns().contains(new Column("BUSINESS_ENTERPRISE_BUSIINFO", "SYSCODE")));
        Assert.assertTrue(visitor.getColumns().contains(new Column("BUSINESS_ENTERPRISE_BUSIINFO", "INTIME")));
        // Assert.assertTrue(visitor.getColumns().contains(new Column("mytable", "first_name")));
        // Assert.assertTrue(visitor.getColumns().contains(new Column("mytable", "full_name")));

        Assert.assertEquals("SELECT ID, IDENTITY, BUSICODE"
                        + "\nFROM BUSINESS_ENTERPRISE_BUSIINFO"
                        + "\nWHERE SYSCODE = '603'"
                        + "\nORDER BY INTIME DESC"
                        + "\nFETCH FIRST 1 ROWS ONLY", //
                SQLUtils.toSQLString(stmt, JdbcConstants.DB2));

        Assert.assertEquals("select ID, IDENTITY, BUSICODE"
                        + "\nfrom BUSINESS_ENTERPRISE_BUSIINFO"
                        + "\nwhere SYSCODE = '603'"
                        + "\norder by INTIME desc"
                        + "\nfetch first 1 rows only", //
                SQLUtils.toSQLString(stmt, JdbcConstants.DB2, SQLUtils.DEFAULT_LCASE_FORMAT_OPTION));
    }
}
