/*
 * 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.oracle;

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 java.util.List;

public class OracleExplainTest extends OracleTest {
    public void test_0() throws Exception {
        String sql = //
                "EXPLAIN PLAN SET STATEMENT_ID='PLUS19628905' FOR select *   from( select row_.*, rownum rownum_   from( SELECT  h.id taskId, t.id tradeId, t.OUT_ORDER_ID orderId, t.SELLER_SEQ sellerSeq, t.BUYER_SEQ buyerSeq, h.RECORD_TYPE recordType, t.SELLER_LOGIN_ID sellerLoginId, t.SELLER_ADMIN_SEQ sellerAdminSeq, h.GMT_CREATE gmtTaskCreate, h.GMT_MODIFIED gmtTaskModified, h.GMT_FETCH_TASK gmtFetchTask, h.GMT_FINISH_TASK gmtFinishTask, h.STATUS status, h.OWNER owner   FROM HT_TASK_TRADE_HISTORY h, escrow_trade t  WHERE h.TRADE_ID= t.ID    and h.OWNER='zhoufei.zhangzf'    and h.STATUS in('running') ORDER BY h.TASK_FLOW_LEVEL, t.GMT_CREATE, h.GMT_MODIFIED DESC) row_ where rownum<= 100)  where rownum_>= 80";

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

        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());

        assertEquals(0, visitor.getTables().size());

        // assertTrue(visitor.getTables().containsKey(new TableStat.Name("\"DUAL\"")));

        assertEquals(0, visitor.getColumns().size());

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