/*
 * 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.ignite.jdbc.thin;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.concurrent.Callable;
import org.apache.ignite.Ignite;
import org.apache.ignite.IgniteCache;
import org.apache.ignite.configuration.CacheConfiguration;
import org.apache.ignite.configuration.IgniteConfiguration;
import org.apache.ignite.spi.discovery.tcp.TcpDiscoverySpi;
import org.apache.ignite.spi.discovery.tcp.ipfinder.TcpDiscoveryIpFinder;
import org.apache.ignite.spi.discovery.tcp.ipfinder.vm.TcpDiscoveryVmIpFinder;
import org.apache.ignite.testframework.GridTestUtils;
import org.jetbrains.annotations.NotNull;

/**
 *
 */
public class JdbcThinNoDefaultSchemaTest extends JdbcThinAbstractSelfTest {
    /** IP finder. */
    private static final TcpDiscoveryIpFinder IP_FINDER = new TcpDiscoveryVmIpFinder(true);

    /** First cache name. */
    private static final String CACHE1_NAME = "cache1";

    /** Second cache name. */
    private static final String CACHE2_NAME = "cache2";

    /** URL. */
    private static final String URL = "jdbc:ignite:thin://127.0.0.1";

    /** Grid count. */
    private static final int GRID_CNT = 2;

    /** {@inheritDoc} */
    @Override protected IgniteConfiguration getConfiguration(String igniteInstanceName) throws Exception {
        IgniteConfiguration cfg = super.getConfiguration(igniteInstanceName);

        cfg.setCacheConfiguration(cacheConfiguration(CACHE1_NAME), cacheConfiguration(CACHE2_NAME));

        TcpDiscoverySpi disco = new TcpDiscoverySpi();

        disco.setIpFinder(IP_FINDER);

        cfg.setDiscoverySpi(disco);

        return cfg;
    }

    /**
     * @param name Cache name.
     * @return Cache configuration.
     * @throws Exception In case of error.
     */
    @SuppressWarnings("unchecked")
    private CacheConfiguration cacheConfiguration(@NotNull String name) throws Exception {
        CacheConfiguration cfg = defaultCacheConfiguration();

        cfg.setIndexedTypes(Integer.class, Integer.class);

        cfg.setName(name);

        return cfg;
    }

    /** {@inheritDoc} */
    @Override protected void beforeTestsStarted() throws Exception {
        super.beforeTestsStarted();

        startGridsMultiThreaded(GRID_CNT);

        Ignite ignite = ignite(0);

        IgniteCache<Integer, Integer> cache1 = ignite.cache(CACHE1_NAME);
        IgniteCache<Integer, Integer> cache2 = ignite.cache(CACHE2_NAME);

        for (int i = 0; i < 10; i++) {
            cache1.put(i, i * 2);
            cache2.put(i, i * 3);
        }
    }

    /** {@inheritDoc} */
    @Override protected void afterTestsStopped() throws Exception {
        stopAllGrids();
    }

    /**
     * @throws Exception If failed.
     */
    @SuppressWarnings({"EmptyTryBlock", "unused"})
    public void testDefaults() throws Exception {
        try (Connection conn = DriverManager.getConnection(URL)) {
            // No-op.
        }

        try (Connection conn = DriverManager.getConnection(URL + '/')) {
            // No-op.
        }
    }

    /**
     * @throws Exception If failed.
     */
    public void testSchemaNameInQuery() throws Exception {
        Connection conn = DriverManager.getConnection(URL);

        Statement stmt = conn.createStatement();

        assertNotNull(stmt);
        assertFalse(stmt.isClosed());

        stmt.execute("select t._key, t._val from \"cache1\".Integer t");

        ResultSet rs = stmt.getResultSet();

        while(rs.next())
            assertEquals(rs.getInt(2), rs.getInt(1) * 2);

        stmt.execute("select t._key, t._val from \"cache2\".Integer t");

        rs = stmt.getResultSet();

        while(rs.next())
            assertEquals(rs.getInt(2), rs.getInt(1) * 3);

        stmt.execute("select t._key, t._val, v._val " +
            "from \"cache1\".Integer t join \"cache2\".Integer v on t._key = v._key");

        rs = stmt.getResultSet();

        while(rs.next()) {
            assertEquals(rs.getInt(2), rs.getInt(1) * 2);
            assertEquals(rs.getInt(3), rs.getInt(1) * 3);
        }

        stmt.close();
    }

    /**
     * @throws Exception If failed.
     */
    public void testSchemaInUrl() throws Exception {
        try(Connection conn = DriverManager.getConnection(URL + "/\"cache1\"")) {
            Statement stmt = conn.createStatement();

            stmt.execute("select t._key, t._val from Integer t");

            ResultSet rs = stmt.getResultSet();

            while (rs.next())
                assertEquals(rs.getInt(2), rs.getInt(1) * 2);
        }

        try(Connection conn = DriverManager.getConnection(URL + "/\"cache2\"")) {
            Statement stmt = conn.createStatement();

            stmt.execute("select t._key, t._val from Integer t");

            ResultSet rs = stmt.getResultSet();

            while (rs.next())
                assertEquals(rs.getInt(2), rs.getInt(1) * 3);
        }
    }

    /**
     * @throws Exception If failed.
     */
    public void testSchemaInUrlAndInQuery() throws Exception {
        try(Connection conn = DriverManager.getConnection(URL + "/\"cache2\"")) {
            Statement stmt = conn.createStatement();

            stmt.execute("select t._key, t._val, v._val " +
                "from \"cache1\".Integer t join Integer v on t._key = v._key");

            ResultSet rs = stmt.getResultSet();

            while (rs.next()) {
                assertEquals(rs.getInt(2), rs.getInt(1) * 2);
                assertEquals(rs.getInt(3), rs.getInt(1) * 3);
            }
        }
    }

    /**
     * @throws Exception If failed.
     */
    public void testSetSchema() throws Exception {
        try(Connection conn = DriverManager.getConnection(URL)) {
            // Try to execute query without set schema
            GridTestUtils.assertThrows(log, new Callable<Object>() {
                @Override public Object call() throws Exception {
                    Statement stmt = conn.createStatement();

                    stmt.execute("select t._key, t._val from Integer t");

                    return null;
                }
            }, SQLException.class, "Table \"INTEGER\" not found");

            conn.setSchema("\"cache1\"");

            Statement stmt = conn.createStatement();

            //Must not affects previous created statements.
            conn.setSchema("invalid_schema");

            stmt.execute("select t._key, t._val from Integer t");

            ResultSet rs = stmt.getResultSet();

            while (rs.next())
                assertEquals(rs.getInt(2), rs.getInt(1) * 2);
        }
    }
}
