/* Copyright 2012, Sebastian Reichel <sre@ring0.de>
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

public Device dev;
public Database db;
public AudioPlayer audio;
public CSVMemberFile csvimport;
public ScannerSession localsession;
public MainLoop loop;

public static int main(string[] args) {
	Gst.init(ref args);

	if(args.length < 2) {
		stderr.printf("%s <device>\n", args[0]);
		return 1;
	}

	/* handle unix signals */
	Unix.signal_add(Posix.SIGTERM, handle_signals);
	Unix.signal_add(Posix.SIGINT,  handle_signals);

	dev   = new Device(args[1], 9600, 8, 1);
	db    = new Database("shop.db");
	audio = new AudioPlayer();
	loop  = new MainLoop();

	dev.received_barcode.connect((data) => {
		if(localsession.interpret(data))
			dev.blink(10);
	});

	write_to_log("KtT Shop System has been started");
	audio.play("system/startup.ogg");

	/* attach webserver to mainloop */
	new WebServer();

	/* run mainloop */
	loop.run();

	write_to_log("Stopping Shop System");
	audio.play("system/shutdown.ogg");

	/* we need to run the mainloop to play audio */
	audio.end_of_stream.connect(() => { loop.quit(); });
	loop.run();

	/* explicitly call destructors */
	dev   = null;
	db    = null;
	audio = null;

	return 0;
}

public void write_to_log(string format, ...) {
	var arguments = va_list();
	var message = format.vprintf(arguments);

	stdout.printf(message + "\n");
}

bool handle_signals() {
	loop.quit();
	return false;
}