/*
  Mediazentrale - Personal Media Center
  Copyright (C) 2021  Ulrich Hilger

  This program is free software: you can redistribute it and/or modify
  it under the terms of the GNU Affero 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 Affero General Public License for more details.

  You should have received a copy of the GNU Affero General Public License
  along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
package de.uhilger.mediaz.api;

import com.sun.net.httpserver.HttpExchange;
import de.uhilger.mediaz.App;
import de.uhilger.mediaz.Server;
import de.uhilger.mediaz.entity.Abspieler;
import de.uhilger.mediaz.entity.Abspielliste;
import de.uhilger.mediaz.entity.Entity;
import de.uhilger.mediaz.entity.Titel;
import de.uhilger.mediaz.store.FileStorage;
import java.io.IOException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.logging.Logger;

/**
 * Die MediaSteuerung verarbeitet HTTP-Signale zur Steuerung von Media-Operationen
 * wie z.B. dem Spielen einer Abspielliste oder dem Starten oder Stoppen eines Videos
 * auf einem entfernten Abspielgeraet.
 * 
 * HTTP GET /mz/api/strg/abspieler/play/liste/[name]
 * HTTP GET /mz/api/strg/abspieler/play/[titel-url]
 * HTTP GET /mz/api/strg/abspieler/pause
 * HTTP GET /mz/api/strg/abspieler/stop
 * HTTP GET /mz/api/strg/abspieler/weiter
 * 
 * 
 * @author Ulrich Hilger
 * @version 1, 9.4.2021
 */
public class MediaSteuerung extends AbstractHandler {

  private static final Logger logger = Logger.getLogger(MediaSteuerung.class.getName());
  
  private Map spielt = new HashMap();

  @Override
  protected String get(HttpExchange e) {
    String response = "in Arbeit..";
    String path = e.getRequestURI().toString();
    String[] elems = path.split(App.getRs(Server.RB_SLASH));
    // 4 Player name, 7 listenname
    switch(elems.length) {
      case 8:
        response = play(e, elems[4], elems[7]);
        break;
    }
    return response;
  }

  @Override
  protected String put(HttpExchange e) throws IOException {
    throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
  }

  @Override
  protected String post(HttpExchange e) {
    throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
  }

  @Override
  protected boolean delete(HttpExchange e) {
    throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
  }
  
  private String play(HttpExchange e, String aName, String lName) {
    FileStorage fs = new FileStorage(App.getInitParameter(App.getRs(App.RB_AP_CONF)));
    Entity entity = fs.read(FileStorage.ST_ABSPIELER, aName);
    if(entity instanceof Abspieler) {
      Abspieler abspieler = (Abspieler) entity;
      String aUrl = abspieler.getUrl();
      entity = fs.read(FileStorage.ST_ABSPIELLISTE, lName);
      if(entity instanceof Abspielliste) {
        Abspielliste liste = (Abspielliste) entity;
        Titel titel = liste.getTitel().get(0);
        spielt.put(aName, (int) 0);
        String titelUrl = titel.getKatalogUrl() + titel.getPfad() + titel.getName();
        logger.info("abspielen von " + titelUrl + " auf " + aUrl);
      }
    }
    String response = "Abspielen der Liste " + lName + " auf Abspieler " + aName + " gestartet.";
    return response;
  }
  
  private String kommando() {
    return "avd/play?th=60&ti=60&o=local&titel=";
  }
  
  // rpi4-az:9090/avd/play?titel=/Filme/S/sound_city.m4v&th=60&ti=60&o=local
  // aUrl http://rpi4-wz:9090/
  // titelUrl /media/test/A/The-Alan-Parsons-Project/I-Robot/02-I-Wouldnt-Want-to-Be-Like-You.mp3
  
}