/*
    * This file is part of Waarp Project (named also Waarp or GG).
    *
    *  Copyright (c) 2019, Waarp SAS, and individual contributors by the @author
    *  tags. See the COPYRIGHT.txt in the distribution for a full listing of
    * individual contributors.
    *
    *  All Waarp Project is free software: you can redistribute it and/or
    * modify it under the terms of the GNU General Public License as published by
   * the Free Software Foundation, either version 3 of the License, or (at your
   * option) any later version.
   *
   * Waarp is distributed in the hope that it will be useful, but WITHOUT ANY
   * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
   * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
   *
   *  You should have received a copy of the GNU General Public License along with
   * Waarp . If not, see <http://www.gnu.org/licenses/>.
   */
  package org.waarp.openr66.proxy.network;
  
  import io.netty.channel.Channel;
  import org.waarp.openr66.protocol.utils.R66Future;
  
  import static org.waarp.openr66.protocol.configuration.Configuration.*;
  import static org.waarp.openr66.protocol.networkhandler.NetworkServerInitializer.*;
  
  /**
   * Proxy bridge between a request and a proxified server
   */
  public class ProxyBridge {
    public static NetworkTransaction transaction;
  
    private final ProxyEntry proxyEntry;
    private final NetworkServerHandler source;
    private NetworkServerHandler proxified;
    private final R66Future futureRemoteConnected = new R66Future(true);
  
    public static void initialize() {
      transaction = new NetworkTransaction();
    }
  
    /**
     * @param proxyEntry
     * @param source
     */
    public ProxyBridge(final ProxyEntry proxyEntry,
                       final NetworkServerHandler source) {
      this.proxyEntry = proxyEntry;
      this.source = source;
    }
  
    public final void initializeProxy() {
      final Channel proxy = transaction.createConnectionWithRetry(
          proxyEntry.getRemoteSocketAddress(), proxyEntry.isRemoteSsl());
      if (proxy == null) {
        // Can't connect ?
        futureRemoteConnected.cancel();
        return;
      }
      proxified = (NetworkServerHandler) proxy.pipeline().get(NETWORK_HANDLER);
      proxified.setBridge(this);
    }
  
    public final void remoteConnected() {
      futureRemoteConnected.setSuccess();
    }
  
    public final boolean waitForRemoteConnection() {
      futureRemoteConnected.awaitOrInterruptible(configuration.getTimeoutCon());
      if (!futureRemoteConnected.isSuccess()) {
        futureRemoteConnected.cancel();
        return false;
      }
      return true;
    }
  
    /**
     * @return the proxyEntry
     */
    public final ProxyEntry getProxyEntry() {
      return proxyEntry;
    }
  
    /**
     * @return the source
     */
    public final NetworkServerHandler getSource() {
      return source;
    }
  
    /**
     * @return the proxified
     */
    public final NetworkServerHandler getProxified() {
      return proxified;
    }
  }