/*
 * Copyright (C) 2012 AVM GmbH <info@avm.de>
 * Copyright (C) 2009 The Sipdroid Open Source Project
 * Copyright (C) 2005 Luca Veltri - University of Parma - Italy
 * 
 * This file is part of Sipdroid (http://www.sipdroid.org)
 * 
 * Sipdroid 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 source code 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 source code; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package de.avm.android.fritzapp.sipua;

import java.util.Locale;

import org.zoolu.sip.address.*;
import org.zoolu.sip.provider.SipStack;
import org.zoolu.sip.provider.SipProvider;
import org.zoolu.tools.Configure;
import org.zoolu.tools.Parser;

/**
 * UserProfile maintains the user configuration
 */
public class UserAgentProfile extends Configure {
	/** The default configuration file */

	// ********************** user configurations *********************
	/**
	 * User's AOR (Address Of Record), used also as From URL. <p/> The AOR is
	 * the SIP address used to register with the user's registrar server (if
	 * requested). <br/> The address of the registrar is taken from the hostport
	 * field of the AOR, i.e. the value(s) host[:port] after the '@' character.
	 * <p/> If not defined (default), it equals the <i>contact_url</i>
	 * attribute.
	 */
	public String from_url = null;
	/**
	 * Contact URL. If not defined (default), it is formed by
	 * sip:local_user@host_address:host_port
	 */
	public String contact_url = null;
	/** User's name (used to build the contact_url if not explitely defined) */
	public String username = null;
	/** User's realm. */
	public String realm = null;
	/** User's passwd. */
	public String passwd = null;
	
	/** User's callerid. */
	public String callerid = null;
	/**
	 * Path for the 'ua.jar' lib, used to retrive various UA media (gif, wav,
	 * etc.) By default, it is used the "lib/ua.jar" folder
	 */
	public static String ua_jar = "lib/ua.jar";
	/**
	 * Path for the 'contacts.lst' file where save and load the VisualUA
	 * contacts By default, it is used the "config/contacts.lst" folder
	 */
	public static String contacts_file = "contacts.lst";

	/** Whether registering with the registrar server */
	public boolean do_register = false;
	/** Whether unregistering the contact address */
	public boolean do_unregister = false;
	/**
	 * Whether unregistering all contacts beafore registering the contact
	 * address
	 */
	public boolean do_unregister_all = false;
	/** Expires time (in seconds). */
	public int expires = 3600;

	/**
	 * Rate of keep-alive packets sent toward the registrar server (in
	 * milliseconds). Set keepalive_time=0 to disable the sending of keep-alive
	 * datagrams.
	 */
	public long keepalive_time = 0;

	/**
	 * Automatic call a remote user secified by the 'call_to' value. Use value
	 * 'NONE' for manual calls (or let it undefined).
	 */
	public String call_to = null;
	/**
	 * Automatic answer time in seconds; time<0 corresponds to manual answer
	 * mode.
	 */
	public int accept_time = -1;
	/**
	 * Automatic hangup time (call duartion) in seconds; time<=0 corresponds to
	 * manual hangup mode.
	 */
	public int hangup_time = -1;
	/**
	 * Automatic call transfer time in seconds; time<0 corresponds to no auto
	 * transfer mode.
	 */
	public int transfer_time = -1;
	/**
	 * Automatic re-inviting time in seconds; time<0 corresponds to no auto
	 * re-invite mode.
	 */
	public int re_invite_time = -1;

	/**
	 * Redirect incoming call to the secified url. Use value 'NONE' for not
	 * redirecting incoming calls (or let it undefined).
	 */
	public String redirect_to = null;

	/**
	 * Transfer calls to the secified url. Use value 'NONE' for not transferring
	 * calls (or let it undefined).
	 */
	public String transfer_to = null;

	/** No offer in the invite */
	public boolean no_offer = false;
	/** Do not use prompt */
	public boolean no_prompt = false;

	/** Whether using audio */
	public boolean audio = true; // modified
	/** Whether using video */
	public boolean video = false; // modified

	/** Whether playing in receive only mode */
	public boolean recv_only = false;
	/** Whether playing in send only mode */
	public boolean send_only = false;
	/** Whether playing a test tone in send only mode */
	public boolean send_tone = false;
	/** Audio file to be played */
	public String send_file = null;
	/** Audio file to be recorded */
	public String recv_file = null;

	/** Audio port */
	public int audio_port = 21000;

	/** Supported codecs (priority order) */
	public int[] codecs = {3, 8, 0}; //change multi codecs
	public int dtmf_avp = 101; // zero means no use of outband DTMF
	/** Audio sample rate */
	public int audio_sample_rate = 8000;
	/** Audio sample size */
	public int audio_sample_size = 1;
	/** Audio frame size */
	public int audio_frame_size = 160;

	/** Video port */
	public int video_port = 21070;
	/** Video avp */
	public int video_avp = 103;

	// ************************** Costructors *************************

	/** Costructs a void UserProfile */
	public UserAgentProfile() {
		init();
	}

	/** Costructs a new UserAgentProfile */
	public UserAgentProfile(String file) { // load configuration
		loadFile(file);
		// post-load manipulation
		init();
	}

	/** Inits the UserAgentProfile */
	private void init() {
		if (realm == null && contact_url != null)
			realm = new NameAddress(contact_url).getAddress().getHost();
		if (username == null)
			username = (contact_url != null) ? new NameAddress(contact_url)
					.getAddress().getUserName() : "user";
		if (call_to != null && call_to.equalsIgnoreCase(Configure.NONE))
			call_to = null;
		if (redirect_to != null && redirect_to.equalsIgnoreCase(Configure.NONE))
			redirect_to = null;
		if (transfer_to != null && transfer_to.equalsIgnoreCase(Configure.NONE))
			transfer_to = null;
		if (send_file != null && send_file.equalsIgnoreCase(Configure.NONE))
			send_file = null;
		if (recv_file != null && recv_file.equalsIgnoreCase(Configure.NONE))
			recv_file = null;
	}

	// ************************ Public methods ************************

	/**
	 * Sets contact_url and from_url with transport information. <p/> This
	 * method actually sets contact_url and from_url only if they haven't still
	 * been explicitly initialized.
	 */
	public void initContactAddress(SipProvider sip_provider) { // contact_url
		if (contact_url == null) {
			contact_url = "sip:" + username + "@"
					+ sip_provider.getViaAddress();
			if (sip_provider.getPort() != SipStack.default_port)
				contact_url += ":" + sip_provider.getPort();
			if (!sip_provider.getDefaultTransport().equals(
					SipProvider.PROTO_UDP))
				contact_url += ";transport="
						+ sip_provider.getDefaultTransport();
		}
		// from_url
		if (from_url == null)
			from_url = contact_url;
	}

	// *********************** Protected methods **********************

	/** Parses a single line (loaded from the config file) */
	protected void parseLine(String line) {
		String attribute;
		Parser par;
		int index = line.indexOf("=");
		if (index > 0) {
			attribute = line.substring(0, index).trim();
			par = new Parser(line, index + 1);
		} else {
			attribute = line;
			par = new Parser("");
		}

		if (attribute.equals("from_url")) {
			from_url = par.getRemainingString().trim();
			return;
		}
		if (attribute.equals("contact_url")) {
			contact_url = par.getRemainingString().trim();
			return;
		}
		if (attribute.equals("username")) {
			username = par.getString();
			return;
		}
		if (attribute.equals("realm")) {
			realm = par.getRemainingString().trim();
			return;
		}
		if (attribute.equals("passwd")) {
			passwd = par.getRemainingString().trim();
			return;
		}
		if (attribute.equals("ua_jar")) {
			ua_jar = par.getStringUnquoted();
			return;
		}
		if (attribute.equals("contacts_file")) {
			contacts_file = par.getStringUnquoted();
			return;
		}

		if (attribute.equals("do_register")) {
			do_register = (par.getString().toLowerCase(Locale.US).startsWith("y"));
			return;
		}
		if (attribute.equals("do_unregister")) {
			do_unregister = (par.getString().toLowerCase(Locale.US).startsWith("y"));
			return;
		}
		if (attribute.equals("do_unregister_all")) {
			do_unregister_all = (par.getString().toLowerCase(Locale.US).startsWith("y"));
			return;
		}
		if (attribute.equals("expires")) {
			expires = par.getInt();
			return;
		}
		if (attribute.equals("keepalive_time")) {
			keepalive_time = par.getInt();
			return;
		}

		if (attribute.equals("call_to")) {
			call_to = par.getRemainingString().trim();
			return;
		}
		if (attribute.equals("accept_time")) {
			accept_time = par.getInt();
			return;
		}
		if (attribute.equals("hangup_time")) {
			hangup_time = par.getInt();
			return;
		}
		if (attribute.equals("transfer_time")) {
			transfer_time = par.getInt();
			return;
		}
		if (attribute.equals("re_invite_time")) {
			re_invite_time = par.getInt();
			return;
		}
		if (attribute.equals("redirect_to")) {
			redirect_to = par.getRemainingString().trim();
			return;
		}
		if (attribute.equals("transfer_to")) {
			transfer_to = par.getRemainingString().trim();
			return;
		}
		if (attribute.equals("no_offer")) {
			no_offer = (par.getString().toLowerCase(Locale.US).startsWith("y"));
			return;
		}
		if (attribute.equals("no_prompt")) {
			no_prompt = (par.getString().toLowerCase(Locale.US).startsWith("y"));
			return;
		}

		if (attribute.equals("audio")) {
			audio = (par.getString().toLowerCase(Locale.US).startsWith("y"));
			return;
		}
		if (attribute.equals("video")) {
			video = (par.getString().toLowerCase(Locale.US).startsWith("y"));
			return;
		}
		if (attribute.equals("recv_only")) {
			recv_only = (par.getString().toLowerCase(Locale.US).startsWith("y"));
			return;
		}
		if (attribute.equals("send_only")) {
			send_only = (par.getString().toLowerCase(Locale.US).startsWith("y"));
			return;
		}
		if (attribute.equals("send_tone")) {
			send_tone = (par.getString().toLowerCase(Locale.US).startsWith("y"));
			return;
		}
		if (attribute.equals("send_file")) {
			send_file = par.getRemainingString().trim();
			return;
		}
		if (attribute.equals("recv_file")) {
			recv_file = par.getRemainingString().trim();
			return;
		}

		if (attribute.equals("audio_port")) {
			audio_port = par.getInt();
			return;
		}
		if (attribute.equals("audio_sample_rate")) {
			audio_sample_rate = par.getInt();
			return;
		}
		if (attribute.equals("audio_sample_size")) {
			audio_sample_size = par.getInt();
			return;
		}
		if (attribute.equals("audio_frame_size")) {
			audio_frame_size = par.getInt();
			return;
		}
		if (attribute.equals("video_port")) {
			video_port = par.getInt();
			return;
		}
		if (attribute.equals("video_avp")) {
			video_avp = par.getInt();
			return;
		}

		// for backward compatibily
		if (attribute.equals("contact_user")) {
			username = par.getString();
			return;
		}
		if (attribute.equals("auto_accept")) {
			accept_time = ((par.getString().toLowerCase(Locale.US).startsWith("y"))) ? 0
					: -1;
			return;
		}
	}

	/** Converts the entire object into lines (to be saved into the config file) */
	protected String toLines() { // currently not implemented..
		return contact_url;
	}

}
