/*
 * 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.proxy.server;

import static org.mockito.Mockito.doReturn;
import java.io.File;
import java.io.FileWriter;
import java.util.Optional;
import org.apache.pulsar.broker.auth.MockOIDCIdentityProvider;
import org.apache.pulsar.broker.auth.MockedPulsarServiceBaseTest;
import org.apache.pulsar.broker.authentication.AuthenticationService;
import org.apache.pulsar.client.api.Authentication;
import org.apache.pulsar.client.api.AuthenticationFactory;
import org.apache.pulsar.common.configuration.PulsarConfigurationLoader;
import org.apache.pulsar.metadata.impl.ZKMetadataStore;
import org.mockito.Mockito;
import org.testng.annotations.AfterClass;
import org.testng.annotations.BeforeClass;
import org.testng.annotations.Test;

public class ProxyTlsWithAuthTest extends MockedPulsarServiceBaseTest {

    private ProxyService proxyService;
    private ProxyConfiguration proxyConfig = new ProxyConfiguration();
    private Authentication proxyClientAuthentication;

    private MockOIDCIdentityProvider server;

    @Override
    @BeforeClass
    protected void setup() throws Exception {
        internalSetup();
        String clientSecret = "super-secret-client-secret";
        server = new MockOIDCIdentityProvider(clientSecret, "an-audience", 3000);

        File tempFile = File.createTempFile("oauth2", ".tmp");
        tempFile.deleteOnExit();
        FileWriter writer = new FileWriter(tempFile);
        writer.write("{\n"
            + "  \"client_id\":\"my-user\",\n"
            + "  \"client_secret\":\"" + clientSecret + "\"\n"
            + "}");
        writer.flush();
        writer.close();

        proxyConfig.setServicePort(Optional.of(0));
        proxyConfig.setBrokerProxyAllowedTargetPorts("*");
        proxyConfig.setServicePortTls(Optional.of(0));
        proxyConfig.setWebServicePort(Optional.of(0));
        proxyConfig.setWebServicePortTls(Optional.of(0));
        proxyConfig.setTlsEnabledWithBroker(true);
        proxyConfig.setTlsCertificateFilePath(PROXY_CERT_FILE_PATH);
        proxyConfig.setTlsKeyFilePath(PROXY_KEY_FILE_PATH);
        proxyConfig.setMetadataStoreUrl(DUMMY_VALUE);
        proxyConfig.setConfigurationMetadataStoreUrl(GLOBAL_DUMMY_VALUE);
        proxyConfig.setBrokerClientAuthenticationPlugin(
                "org.apache.pulsar.client.impl.auth.oauth2.AuthenticationOAuth2");
        proxyConfig.setBrokerClientAuthenticationParameters("{\"grant_type\":\"client_credentials\","
            + " \"issuerUrl\":\"" + server.getIssuer() + "\","
            + " \"audience\": \"an-audience\","
            + " \"privateKey\":\"file://" + tempFile.getAbsolutePath() + "\"}");
        proxyConfig.setClusterName(configClusterName);

        proxyClientAuthentication = AuthenticationFactory.create(proxyConfig.getBrokerClientAuthenticationPlugin(),
                proxyConfig.getBrokerClientAuthenticationParameters());
        proxyClientAuthentication.start();

        proxyService = Mockito.spy(new ProxyService(proxyConfig, new AuthenticationService(
            PulsarConfigurationLoader.convertFrom(proxyConfig)), proxyClientAuthentication));
        doReturn(registerCloseable(new ZKMetadataStore(mockZooKeeper))).when(proxyService).createLocalMetadataStore();
        doReturn(registerCloseable(new ZKMetadataStore(mockZooKeeperGlobal))).when(proxyService)
                .createConfigurationMetadataStore();

        proxyService.start();
    }

    @Override
    @AfterClass(alwaysRun = true)
    protected void cleanup() throws Exception {
        internalCleanup();
        proxyService.close();
        if (proxyClientAuthentication != null) {
            proxyClientAuthentication.close();
        }
        server.stop();
    }

    @Test
    public void testServiceStartup() {
        // this tests is only for verify the proxy setup with oauth2 authentication plugin
    }
}
