/*
 * 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.pulsar.testclient;

import java.io.FileInputStream;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.Map;
import java.util.Properties;
import org.apache.pulsar.client.api.Authentication;
import org.apache.pulsar.client.api.ProxyProtocol;
import org.apache.pulsar.client.api.PulsarClientException;
import org.apache.pulsar.client.impl.ClientBuilderImpl;
import org.apache.pulsar.client.impl.conf.ClientConfigurationData;
import org.testng.Assert;
import org.testng.annotations.Test;

public class PerfClientUtilsTest {

    public static class MyAuth implements Authentication {
        @Override
        public String getAuthMethodName() {
            return null;
        }

        @Override
        public void configure(Map<String, String> authParams) {
        }

        @Override
        public void start() throws PulsarClientException {
        }

        @Override
        public void close() throws IOException {
        }
    }

    @Test
    public void testClientCreation() throws Exception {

        final PerformanceBaseArguments args = new PerformanceArgumentsTestDefault("");

        args.tlsHostnameVerificationEnable = true;
        args.authPluginClassName = MyAuth.class.getName();
        args.authParams = "params";
        args.enableBusyWait = true;
        args.maxConnections = 100;
        args.ioThreads = 16;
        args.listenerName = "listener";
        args.listenerThreads = 12;
        args.statsIntervalSeconds = Long.MAX_VALUE;
        args.serviceURL = "pulsar+ssl://my-pulsar:6651";
        args.tlsTrustCertsFilePath = "path";
        args.tlsAllowInsecureConnection = true;
        args.maxLookupRequest = 100000;
        args.memoryLimit = 10240;

        final ClientBuilderImpl builder = (ClientBuilderImpl) PerfClientUtils.createClientBuilderFromArguments(args);
        final ClientConfigurationData conf = builder.getClientConfigurationData();

        Assert.assertTrue(conf.isTlsHostnameVerificationEnable());
        Assert.assertEquals(conf.getAuthPluginClassName(), MyAuth.class.getName());
        Assert.assertEquals(conf.getAuthParams(), "params");
        Assert.assertTrue(conf.isEnableBusyWait());
        Assert.assertEquals(conf.getConnectionsPerBroker(), 100);
        Assert.assertEquals(conf.getNumIoThreads(), 16);
        Assert.assertEquals(conf.getListenerName(), "listener");
        Assert.assertEquals(conf.getNumListenerThreads(), 12);
        Assert.assertEquals(conf.getStatsIntervalSeconds(), Long.MAX_VALUE);
        Assert.assertEquals(conf.getServiceUrl(), "pulsar+ssl://my-pulsar:6651");
        Assert.assertEquals(conf.getTlsTrustCertsFilePath(), "path");
        Assert.assertTrue(conf.isTlsAllowInsecureConnection());
        Assert.assertEquals(conf.getMaxLookupRequest(), 100000);
        Assert.assertNull(conf.getProxyServiceUrl());
        Assert.assertNull(conf.getProxyProtocol());
        Assert.assertEquals(conf.getMemoryLimitBytes(), 10240L);

    }

    @Test
    public void testClientCreationWithProxy() throws Exception {

        final PerformanceBaseArguments args = new PerformanceArgumentsTestDefault("");

        args.serviceURL = "pulsar+ssl://my-pulsar:6651";
        args.proxyServiceURL = "pulsar+ssl://my-proxy-pulsar:4443";
        args.proxyProtocol = ProxyProtocol.SNI;

        final ClientBuilderImpl builder = (ClientBuilderImpl) PerfClientUtils.createClientBuilderFromArguments(args);
        final ClientConfigurationData conf = builder.getClientConfigurationData();

        Assert.assertEquals(conf.getProxyServiceUrl(), "pulsar+ssl://my-proxy-pulsar:4443");
        Assert.assertEquals(conf.getProxyProtocol(), ProxyProtocol.SNI);

    }

    @Test
    public void testClientCreationWithProxyDefinedInConfFile() throws Exception {

        Path testConf = Files.createTempFile("test", ".conf");
        try {
            Files.writeString(testConf, "brokerServiceUrl=pulsar+ssl://my-pulsar:6651\n"
                    + "proxyServiceUrl=pulsar+ssl://my-proxy-pulsar:4443\n"
                    + "proxyProtocol=SNI");

            final PerformanceBaseArguments args = new PerformanceArgumentsTestDefault("");
            Properties prop = new Properties(System.getProperties());
            try (FileInputStream fis = new FileInputStream(testConf.toString())) {
                prop.load(fis);
            }
            args.getCommander().setDefaultValueProvider(PulsarPerfTestPropertiesProvider.create(prop));
            args.parse(new String[]{});
            final ClientBuilderImpl builder =
                    (ClientBuilderImpl) PerfClientUtils.createClientBuilderFromArguments(args);
            final ClientConfigurationData conf = builder.getClientConfigurationData();

            Assert.assertEquals(conf.getProxyServiceUrl(), "pulsar+ssl://my-proxy-pulsar:4443");
            Assert.assertEquals(conf.getProxyProtocol(), ProxyProtocol.SNI);
        } finally {
            Files.deleteIfExists(testConf);
        }
    }

    @Test
    public void testClientCreationWithEmptyProxyPropertyInConfFile() throws Exception {

        Path testConf = Files.createTempFile("test", ".conf");
        try {
            Files.writeString(testConf, "brokerServiceUrl=pulsar+ssl://my-pulsar:6651\n"
                    + "proxyServiceUrl=\n"
                    + "proxyProtocol=");

            final PerformanceBaseArguments args = new PerformanceArgumentsTestDefault("");
            Properties prop = new Properties(System.getProperties());
            try (FileInputStream fis = new FileInputStream(testConf.toString())) {
                prop.load(fis);
            }
            args.getCommander().setDefaultValueProvider(PulsarPerfTestPropertiesProvider.create(prop));
            args.parse(new String[]{});

            final ClientBuilderImpl builder =
                    (ClientBuilderImpl) PerfClientUtils.createClientBuilderFromArguments(args);
            final ClientConfigurationData conf = builder.getClientConfigurationData();

            Assert.assertEquals(conf.getProxyServiceUrl(), "");
            Assert.assertNull(conf.getProxyProtocol());
        } finally {
            Files.deleteIfExists(testConf);
        }
    }
}

class PerformanceArgumentsTestDefault extends PerformanceBaseArguments {
    public PerformanceArgumentsTestDefault(String cmdName) {
        super(cmdName);
    }


    @Override
    public void run() throws Exception {

    }
}
