/*
 * Copyright (C) 2008
 * Ademar de Souza Reis Jr. <ademar@ademar.org>
 * GPLv2+
 *
 * 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
 * 2 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 file COPYING for details.
 *
 * $Id: amora-server.cpp 346 2008-08-19 16:34:50Z ademar $
 */


#include <iostream>
#include <QApplication>
#include <QMessageBox>

#include "applet.h"
#include "amora-server.h"

extern "C" {
#include <amora.h>
}

/* Required to be used by conn/disconnection callbacks */
static Amora *amora_server = NULL;

void client_connection(const char *client_name)
{
	/* TODO: use some UI element to display this */
	if (client_name)
		fprintf(stderr, "client connected: %s\n", client_name);
	if (amora_server)
		amora_server->emitSignal(On);
}

void client_disconnection(const char *client_name)
{
	/* TODO: amora lib should return client name */
	(void)client_name;

	/* TODO: applet must have an internal counter and do himself
	 * the animation to show disconnection. There is no guarantee that
	 * the signals will be delivered in order.
	 */
	if (amora_server) {
		amora_server->emitSignal(Off);
		sleep(1);
		amora_server->emitSignal(Start);
	}
}

void Amora::emitSignal(int change)
{
	emit changeStatus(change);
}

Amora::Amora(int argc, char *argv[]): _argc(argc), _argv(argv)
{
	logfile = NULL;
	bt_hci = -1;
	bt_channel = 16;

	parse_args(argc, argv);

	amora = amora_context_new(logfile, bt_channel, bt_hci);
	if (amora == NULL) {
		::exit(1);
	}

	amora_connection_callback(amora, client_connection);
	amora_disconnection_callback(amora, client_disconnection);
}

void Amora::parse_args(int argc, char *argv[])
{
	int arg;

	if (argc > 5) {
		show_usage(argv[0]);
		::exit(-1);
	}

	while ((arg = getopt(argc, argv, "l:i:hv")) != -1) {
		switch (arg) {
			case 'l':
				logfile = optarg;
				break;
			case 'h':
				show_usage(argv[0]);
				::exit(0);
			case 'v':
				/* XXX libamora should provide the version */
				printf("experimental amora-applet, "
				       "undefined version\n");
				::exit(0);
			case 'i':
				bt_hci = atoi(optarg);
				break;
			default:
				show_usage(argv[0]);
				::exit(0);
		}
	}
}

void Amora::show_usage(const char *path)
{
	char *name, *p = strdup(path);

	name = basename(p);

	printf("Usage: %s [-l logfile] [-h] [-v] [-i hci_number]\n"
	       "\n"
	       "  -h             show this help message and exit;\n"
	       "  -l logfile     set the log file path (default is disabled);\n"
	       "  -v             show version and exit.\n"
	       "  -i hci_number  set the bluetooth dongle device to use\n"
	       "\n", name);

	free(p);
}

Amora::~Amora()
{
	amora_context_delete(amora);
}

void Amora::run(void)
{
	amora_start(amora);
	exit(0);
}

int main(int argc, char *argv[])
{
	QApplication app(argc, argv);

	if (!QSystemTrayIcon::isSystemTrayAvailable()) {
		QMessageBox::critical(0, QObject::tr("Amora Applet"),
		                      QObject::tr("No system tray available, exiting"));
		return 1;
	}

	Amora server(argc, argv);
	amora_server = &server;

	Applet applet;
	applet.bind(amora_server);
	server.start();

	app.setQuitOnLastWindowClosed(false);
	return app.exec();
}