/*
 * 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.oracle.select;

import com.alibaba.druid.sql.OracleTest;
import com.alibaba.druid.sql.ast.SQLStatement;
import com.alibaba.druid.sql.dialect.oracle.parser.OracleStatementParser;
import com.alibaba.druid.sql.dialect.oracle.visitor.OracleSchemaStatVisitor;
import com.alibaba.druid.stat.TableStat;
import org.junit.Assert;

import java.util.List;

public class OracleSelectTest18 extends OracleTest {
    public void test_0() throws Exception {
        String sql = //
                "begin " + //
                        "   select min(snap_id), max(snap_id), " + //
                        "       to_char(max(begin_interval_time + 16/24), 'yyyy-mm-dd hh24:mi:ss')," + //
                        "       to_char(max(end_interval_time + 16/24), 'yyyy-mm-dd hh24:mi:ss') " + //
                        "   into :bid, :eid, :bst, :est " + //
                        "   from (select snap_id, begin_interval_time, end_interval_time" + //
                        "           from v$instance a,dba_hist_snapshot b" + //
                        "           where a.INSTANCE_NUMBER=b.INSTANCE_NUMBER and begin_interval_time >= sysdate - 150/1440" + //
                        "           order by snap_id desc" + //
                        "           )" + //
                        "   where rownum < 3; " + //
                        "   select 'awr_'||:bid||'_'||:eid||'.html' into :awr from dual; " + //
                        "end;"; //

        OracleStatementParser parser = new OracleStatementParser(sql);
        List<SQLStatement> statementList = parser.parseStatementList();
        SQLStatement statemen = statementList.get(0);
        print(statementList);

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

        OracleSchemaStatVisitor visitor = new OracleSchemaStatVisitor();
        statemen.accept(visitor);

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

        Assert.assertEquals(2, visitor.getTables().size());

        Assert.assertTrue(visitor.getTables().containsKey(new TableStat.Name("v$instance")));
        Assert.assertTrue(visitor.getTables().containsKey(new TableStat.Name("dba_hist_snapshot")));

        Assert.assertEquals(5, visitor.getColumns().size());

        // Assert.assertTrue(visitor.getColumns().contains(new TableStat.Column("pivot_table", "*")));
        // Assert.assertTrue(visitor.getColumns().contains(new TableStat.Column("pivot_table", "YEAR")));
        // Assert.assertTrue(visitor.getColumns().contains(new TableStat.Column("pivot_table", "order_mode")));
    }
}
