/*
 * Copyright (C) 2021 eichehome
 *
 * This program 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.
 *
 * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package server;

import java.io.EOFException;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.logging.Level;
import java.util.logging.Logger;
import utils.Message;

/**
 * Diese Klasse stellt einen Thread dar, die Nachrichten, die er in einem Stream erhällt an einen Client weiterleitet.
 * 
 * @author eichehome
 */
public class ClientPushMessageThread extends Thread {

    private final ObjectOutputStream out;
    private final ObjectInputStream pipedObjectInputStream;
    private ClientStore clientStore;

    /**
     * Haupt methode der Threads, in der alles abläuft.
     */
    public void run() {
        boolean continueLoop = true;
        while (continueLoop) {
            try {
                Message empfangen = null;
                while ((empfangen = (Message) this.pipedObjectInputStream.readObject()) != null) {
                    this.out.writeObject(empfangen);
                    this.out.flush();
                    Logger.getLogger(ClientPushMessageThread.class.getName()).log(Level.INFO, String.format("Pushing Thread %d: Nachricht weitergegeben", this.getId()));
                }
            } catch (ClassNotFoundException ex) {
                Logger.getLogger(ClientPushMessageThread.class.getName()).log(Level.SEVERE, String.format("Pushing Thread %d: Fehler: %s", this.getId(), ex));
            } catch (EOFException ex) {
                Logger.getLogger(ClientPushMessageThread.class.getName()).log(Level.SEVERE, String.format("Pushing Thread %d: Fehler: %s", this.getId(), ex));
                continueLoop = false;
                clientStore.close(this);
                clientStore.removeClient(this);
            } catch (IOException ex) {
                Logger.getLogger(ClientPushMessageThread.class.getName()).log(Level.INFO, String.format("Pushing Thread %d: Pipe wurde beendet", this.getId()));
                clientStore.removeClient(this);
                continueLoop = false;
            }
        }
    }

    /**
     * Konstruktor
     * @param out Stream, in dem der Thread die Nachrichten an den Client schickt.
     * @param pipedObjectInputStream Stream, in dem der Thread die Nachrichten von anderen Threads erhält.
     * @param clientStore Zeiger auf das zentrale Verzeichnis der Clients, um sich dort austragen zu können.
     */
    public ClientPushMessageThread(ObjectOutputStream out, ObjectInputStream pipedObjectInputStream, ClientStore clientStore) {
        this.out = out;
        this.pipedObjectInputStream = pipedObjectInputStream;
        this.clientStore = clientStore;
    }

}