/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 org.apache.access.tests.e2e;

import static org.junit.Assert.assertTrue;

import java.io.File;
import java.io.FileOutputStream;
import java.sql.Connection;
import java.sql.Statement;

import org.apache.access.provider.file.PolicyFile;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

import com.google.common.io.Resources;

public class TestPrivilegeAtTransform extends AbstractTestWithStaticLocalFS {
  private Context context;
  private final String SINGLE_TYPE_DATA_FILE_NAME = "kv1.dat";
  private File dataDir;
  private File dataFile;
  private PolicyFile policyFile;

  @Before
  public void setup() throws Exception {
    context = createContext();
    dataDir = context.getDataDir();
    dataFile = new File(dataDir, SINGLE_TYPE_DATA_FILE_NAME);
    FileOutputStream to = new FileOutputStream(dataFile);
    Resources.copy(Resources.getResource(SINGLE_TYPE_DATA_FILE_NAME), to);
    to.close();
    policyFile = PolicyFile.createAdminOnServer1("admin1");
  }

  @After
  public void tearDown() throws Exception {
    if (context != null) {
      context.close();
    }
  }

  /**
   * Steps:
   * 1. admin create database, create table, load data into it
   * 2. all@server can issue transforms command
   * 3. all@database cannot issue transform command
   * 4. insert@table select@table cannot issue transform command
   * 5. select@view cannot issue transform command
   * 6. transform@server can issue the transform command
   */
  @Test
  public void testTransform1() throws Exception {
    policyFile
      .addGroupsToUser("user1", "group1")
      .addPermissionsToRole("all_db1", "server=server1->db=db_1")
      .addRolesToGroup("group1", "all_db1");
    policyFile.write(context.getPolicyFile());

    // verify by SQL
    // 1, 2
    String dbName1 = "db_1";
    String tableName1 = "tb_1";
    String query = "select TRANSFORM(a.under_col, a.value) USING 'cat' AS (tunder_col, tvalue) FROM " + dbName1 + "." + tableName1 + " a";
    Connection connection = context.createConnection("admin1", "foo");
    Statement statement = context.createStatement(connection);
    statement.execute("DROP DATABASE IF EXISTS " + dbName1 + " CASCADE");
    statement.execute("CREATE DATABASE " + dbName1);
    statement.execute("DROP TABLE IF EXISTS " + dbName1 + "." + tableName1);
    statement.execute("create table " + dbName1 + "." + tableName1
        + " (under_col int, value string)");
     statement.execute("load data local inpath '" + dataFile.getPath()
            + "' into table " + dbName1 + "." + tableName1);
    assertTrue(query, statement.execute(query));

    statement.close();
    connection.close();

    connection = context.createConnection("user1", "foo");
    statement = context.createStatement(connection);

    // 3
    context.assertAuthzExecHookException(statement, query);

    // 4
    policyFile
      .addPermissionsToRole("select_tb1", "server=server1->db=db_1->table=tb_1->action=select")
      .addPermissionsToRole("insert_tb1", "server=server1->db=db_1->table=tb_1->action=insert")
      .addRolesToGroup("group1", "select_tb1", "insert_tb1");
    policyFile.write(context.getPolicyFile());
    context.assertAuthzExecHookException(statement, query);

    // 5
    policyFile
      .addPermissionsToRole("all_server1", "server=server1")
      .addRolesToGroup("group1", "all_server1");
    policyFile.write(context.getPolicyFile());
    assertTrue(query, statement.execute(query));
    statement.close();
    connection.close();
  }
}