/*
 * Copyright (c) 2019-2020. Developed by Hedgecode.
 *
 * 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 org.hedgecode.chess.scanner.proxy.client;

import java.net.InetSocketAddress;
import java.util.HashMap;
import java.util.Map;

import org.apache.http.client.protocol.HttpClientContext;
import org.apache.http.config.RegistryBuilder;
import org.apache.http.conn.HttpClientConnectionManager;
import org.apache.http.conn.socket.ConnectionSocketFactory;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;

import org.hedgecode.chess.scanner.ScannerConstants;
import org.hedgecode.chess.scanner.proxy.ProxyParams;
import org.hedgecode.chess.scanner.request.RequestClient;

/**
 * SocksRequestClient
 *
 * @author Dmitry Samoshin aka gotty
 */
public class SocksRequestClient implements RequestClient {

    private final Map<String, ConnectionSocketFactory> socketFactories =
            new HashMap<String, ConnectionSocketFactory>()
            {
                {
                    put( ScannerConstants.PROXY_HTTP, new SocksSocketFactory() );
                    put( ScannerConstants.PROXY_HTTPS, new SSLSocksSocketFactory() );
                }
            };

    private final HttpClientConnectionManager connectionManager;
    private /*final*/ HttpClientContext clientContext;
    private final InetSocketAddress proxySocketAddress;


    public SocksRequestClient(ProxyParams params) {
        RegistryBuilder<ConnectionSocketFactory> registryBuilder = RegistryBuilder.create();
        for (Map.Entry<String, ConnectionSocketFactory> socketFactory : socketFactories.entrySet()) {
            registryBuilder.register(
                    socketFactory.getKey(), socketFactory.getValue()
            );
        }
        connectionManager = new PoolingHttpClientConnectionManager(
                registryBuilder.build(),
                new LocalDnsResolver()
        );
        proxySocketAddress = new InetSocketAddress(
                params.getHost(), params.getPort()
        );

/*
        clientContext = HttpClientContext.create();
        clientContext.setAttribute(
                ScannerConstants.PROXY_SOCKS_ADDRESS,
                new InetSocketAddress(
                        params.getHost(), params.getPort()
                )
        );
*/
    }

    @Override
    public CloseableHttpClient getClient() {
        return HttpClients.custom()
                .setConnectionManager(connectionManager)
                .build();
    }

    @Override
    public HttpClientContext getContext() {
        clientContext = HttpClientContext.create();
        clientContext.setAttribute(
                ScannerConstants.PROXY_SOCKS_ADDRESS,
                proxySocketAddress
        );
        return clientContext;
    }

}