/*
 * app_contest.c  Radio style contest
 *
 * Copyright (c) 2004-2007 Anthony Minessale II <anthmct@yahoo.com>
 *
 * Permission is hereby granted, free of charge, to any person
 * obtaining a copy of this software and associated documentation
 * files (the "Software"), to deal in the Software without
 * restriction, including without limitation the rights to use,
 * copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following
 * conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 */

#include <stdio.h> 
#include <asterisk/file.h>
#include <asterisk/logger.h>
#include <asterisk/channel.h>
#include <asterisk/pbx.h>
#include <asterisk/cli.h>
#include <asterisk/module.h>
#include <asterisk/lock.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>

static char *tdesc = "contest";
static char *app = "contest";
static char *synopsis = "contest";
static char *desc = "";
static int callerno = 0;
static int winner = 0;
static int ready = 0;

AST_MUTEX_DEFINE_STATIC(mylock);


static void try_your_luck(void) {
	ast_mutex_lock(&mylock);
	callerno++;
	ast_mutex_unlock(&mylock);
}


STANDARD_LOCAL_USER;

LOCAL_USER_DECL;

static int contest_exec(struct ast_channel *chan, void *data)
{
	int res = -1;
	struct localuser *u;
	if (!data) {
		ast_log(LOG_WARNING, "contest requires an argument\n");
		return -1;
	}
	LOCAL_USER_ADD(u);

	try_your_luck();

	if (ready) {
		ast_log(LOG_NOTICE, "Caller %d\n", callerno);
		if (callerno == winner) {
			ready = 0;
			res = 0;
		} else {
			ast_streamfile(chan, "invalid", chan->language);
			ast_waitstream(chan, "");
			res = -1;
		}
	}

	LOCAL_USER_REMOVE(u);
	return res;
}

static int contest_cli(int fd, int argc, char **argv)
{
	if (argc == 2) {
		winner = atoi(argv[1]);
		callerno = 0;
		ready = winner ? 1 : 0;
	}

	ast_cli(fd, "ready=%d callerno=%d winner=%d\n", ready, callerno, winner);
	
	return 0;
}


static struct ast_cli_entry cli_contest = {
	{ "contest", NULL, NULL }, contest_cli, 
	"start a contest", "contest <total>"};



int unload_module(void)
{
	STANDARD_HANGUP_LOCALUSERS;
	ast_cli_unregister(&cli_contest);
	return ast_unregister_application(app);
}

int load_module(void)
{
	ast_cli_register(&cli_contest);
	return ast_register_application(app, contest_exec, synopsis, desc);
}

char *description(void)
{
	return tdesc;
}

int usecount(void)
{
	int res;
	STANDARD_USECOUNT(res);
	return res;
}

char *key()
{
	return ASTERISK_GPL_KEY;
}