/*-
    * #%L
    * prolobjectlink-jpi-jpl7
    * %%
    * Copyright (C) 2012 - 2019 Prolobjectlink Project
    * %%
    * Redistribution and use in source and binary forms, with or without
    * modification, are permitted provided that the following conditions are met:
    * 
   * 1. Redistributions of source code must retain the above copyright notice,
   *    this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright notice,
   *    this list of conditions and the following disclaimer in the documentation
   *    and/or other materials provided with the distribution.
   * 
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   * POSSIBILITY OF SUCH DAMAGE.
   * #L%
   */
  package io.github.prolobjectlink.prolog.jpl7;
  
  import java.io.IOException;
  import java.text.SimpleDateFormat;
  import java.util.Date;
  import java.util.logging.FileHandler;
  import java.util.logging.Formatter;
  import java.util.logging.Handler;
  import java.util.logging.Level;
  import java.util.logging.Logger;
  
  import io.github.prolobjectlink.prolog.AbstractLogger;
  import io.github.prolobjectlink.prolog.PrologLogger;
  
  /**
   * 
   * @author Jose Zalacain
   * @since 1.0
   */
  final class JplLogger extends AbstractLogger implements PrologLogger {
  
  	private static final String MESSAGE = "Logger File Handler can't be created";
  	private static final Logger LOGGER = Logger.getLogger(Logger.GLOBAL_LOGGER_NAME);
  
  	JplLogger() {
  		this(Level.INFO);
  	}
  
  	private JplLogger(Level level) {
  		LOGGER.setLevel(level);
  		Logger rootlogger = LOGGER.getParent();
  		SimpleDateFormat f = new SimpleDateFormat("yyyy.MM.dd");
  		String date = f.format(new Date());
  		Formatter formatter = new JplFormatter();
  		for (Handler h : rootlogger.getHandlers()) {
  			h.setFormatter(formatter);
  			h.setLevel(level);
  		}
  		FileHandler file = null;
  		try {
  			file = new FileHandler("%t/prolobjectlink-" + date + ".log", true);
  		} catch (SecurityException e) {
  			rootlogger.log(Level.SEVERE, MESSAGE, e);
  		} catch (IOException e) {
  			rootlogger.log(Level.SEVERE, MESSAGE, e);
  		}
  		assert file != null;
  		file.setFormatter(formatter);
  		LOGGER.addHandler(file);
  	}
  
  	public void log(Object sender, Level level, Object message, Throwable throwable) {
  		LOGGER.log(level, sender + "\n" + message, throwable);
  	}
  
  }