/*
 * 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;

import org.hedgecode.chess.scanner.proxy.client.HttpRequestClient;
import org.hedgecode.chess.scanner.proxy.client.SocksRequestClient;
import org.hedgecode.chess.scanner.proxy.system.SystemProxy;
import org.hedgecode.chess.scanner.request.PlainRequestClient;
import org.hedgecode.chess.scanner.request.RequestClient;

/**
 * Proxy settings main class.
 *
 * @author Dmitry Samoshin aka gotty
 */
public final class Proxy {

    private static Proxy proxy;

    private RequestClient requestClient;

    private Proxy() {
        requestClient = new PlainRequestClient();
    }

    public static void setProxy(ProxyParams proxyParams) {
        getProxy().set(proxyParams);
    }

    public static RequestClient getRequestClient() {
        return getProxy().client();
    }

    private void set(ProxyParams proxyParams) {
        if (proxyParams.isSystem()) {
            SystemProxy.setProxy(proxyParams);
            requestClient = new PlainRequestClient();
        } else {
            switch (proxyParams.getType()) {
                case HTTP:
                    requestClient = new HttpRequestClient(proxyParams);
                    break;
                case SOCKS:
                    requestClient = new SocksRequestClient(proxyParams);
                    break;
                default:
                    requestClient = new PlainRequestClient();
            }
        }
    }

    private RequestClient client() {
        return requestClient;
    }

    private static Proxy getProxy() {
        if (proxy == null) {
            proxy = new Proxy();
        }
        return proxy;
    }

}