/*
 * 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.SQLUtils;
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 OracleDeleteTest_2 extends OracleTest {
    public void test_0() throws Exception {
        String sql = "DELETE FROM (SELECT * FROM ABC WHERE ID=6000)";

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

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

        OracleSchemaStatVisitor visitor = new OracleSchemaStatVisitor();
        stmt.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());

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

        Assert.assertTrue(visitor.getTables().containsKey(new TableStat.Name("ABC")));
        //
        Assert.assertTrue(visitor.getColumns().contains(new TableStat.Column("ABC", "ID")));
        // Assert.assertTrue(visitor.getColumns().contains(new TableStat.Column("employees", "salary")));
        // Assert.assertTrue(visitor.getColumns().contains(new TableStat.Column("employees", "commission_pct")));

        {
            String output = SQLUtils.toOracleString(stmt);
            Assert.assertEquals("DELETE FROM (\n" +
                            "\tSELECT *\n" +
                            "\tFROM ABC\n" +
                            "\tWHERE ID = 6000\n" +
                            ")", //
                    output);
        }
        {
            String output = SQLUtils.toOracleString(stmt, SQLUtils.DEFAULT_LCASE_FORMAT_OPTION);
            Assert.assertEquals("delete from (\n" +
                            "\tselect *\n" +
                            "\tfrom ABC\n" +
                            "\twhere ID = 6000\n" +
                            ")", //
                    output);
        }
    }

}
