/* $Id: plugin_imon.c,v 1.17 2005/05/08 04:32:44 reinelt Exp $
 *
 * imond/telmond data processing
 *
 * Copyright (C) 2003 Nico Wallmeier <nico.wallmeier@post.rwth-aachen.de>
 *
 * This file is part of LCD4Linux.
 *
 * LCD4Linux 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, or (at your option)
 * any later version.
 *
 * LCD4Linux 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 program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 *
 * $Log: plugin_imon.c,v $
 * Revision 1.17  2005/05/08 04:32:44  reinelt
 * CodingStyle added and applied
 *
 * Revision 1.16  2005/04/04 20:11:14  nicowallmeier
 * to be compatible with gcc 2.95
 *
 * Revision 1.15  2005/04/01 05:16:04  reinelt
 * moved plugin init stuff to a seperate function called on first use
 *
 * Revision 1.14  2005/01/18 06:30:23  reinelt
 * added (C) to all copyright statements
 *
 * Revision 1.13  2004/06/26 12:05:00  reinelt
 *
 * uh-oh... the last CVS log message messed up things a lot...
 *
 * Revision 1.12  2004/06/26 09:27:21  reinelt
 *
 * added '-W' to CFLAGS
 * changed all C++ comments to C ones
 * cleaned up a lot of signed/unsigned mistakes
 *
 * Revision 1.11  2004/06/24 20:18:08  nicowallmeier
 * minor bugfix
 *
 * Revision 1.10  2004/06/20 10:09:56  reinelt
 *
 * 'const'ified the whole source
 *
 * Revision 1.9  2004/06/17 06:23:43  reinelt
 *
 * hash handling rewritten to solve performance issues
 *
 * Revision 1.8  2004/05/27 06:29:29  nicowallmeier
 * Moved variables to Plugin:imon / Plugin:telmon
 *
 * Revision 1.7  2004/05/27 03:39:47  reinelt
 *
 * changed function naming scheme to plugin::function
 *
 * Revision 1.6  2004/03/13 14:58:15  nicowallmeier
 * Added clean termination of imond-connection (now correctly)
 *
 * Revision 1.4  2004/03/03 04:44:16  reinelt
 * changes (cosmetics?) to the big patch from Martin
 * hash patch un-applied
 *
 * Revision 1.3  2004/03/03 03:47:04  reinelt
 * big patch from Martin Hejl:
 * - use qprintf() where appropriate
 * - save CPU cycles on gettimeofday()
 * - add quit() functions to free allocated memory
 * - fixed lots of memory leaks
 *
 * Revision 1.2  2004/02/22 17:35:41  reinelt
 * some fixes for generic graphic driver and T6963
 * removed ^M from plugin_imon (Nico, are you editing under Windows?)
 *
 * Revision 1.1  2004/02/18 14:45:43  nicowallmeier
 * Imon/Telmon plugin ported
 *
 */

#include "config.h"
#include "debug.h"
#include "plugin.h"
#include "qprintf.h"
#include "cfg.h"
#include "hash.h"

#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/fcntl.h>
#include <sys/ioctl.h>
#include <sys/time.h>
#include <linux/errno.h>
#include <sys/stat.h>
#include <string.h>
#include <time.h>

#include <netdb.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <arpa/inet.h>		/* decl of inet_addr()      */
#include <sys/socket.h>


static HASH TELMON;
static HASH IMON;

static char thost[256];
static int tport;
static char phoneb[256];

static char ihost[256];
static char ipass[256];
static int iport;

static int fd = 0;
static int err = 0;

/*----------------------------------------------------------------<style>pre { line-height: 125%; }
td.linenos .normal { color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px; }
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.highlight .nf { color: #0066bb; font-weight: bold } /* Name.Function */
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.highlight .mo { color: #0000DD; font-weight: bold } /* Literal.Number.Oct */
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.highlight .sh { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Heredoc */
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.highlight .sx { color: #22bb22; background-color: #f0fff0 } /* Literal.String.Other */
.highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */
.highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */
.highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */
.highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */
.highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */
.highlight .vc { color: #336699 } /* Name.Variable.Class */
.highlight .vg { color: #dd7700 } /* Name.Variable.Global */
.highlight .vi { color: #3333bb } /* Name.Variable.Instance */
.highlight .vm { color: #336699 } /* Name.Variable.Magic */
.highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */</style><div class="highlight"><pre><span></span># Digikabel, Hungary
# For the following cities:
#  Budapest, Dorog, Hatvan, Kiskunhalas, Debrecen, Szekesfehervar, Pecs,
#  Veszprem, Dunaujvaros, Miskolc, Gyongyos, Tatabanya, Varpalota, Nagykanizsa,
#  Salgotarjan, Batonyterenye, Szolnok, Szentistvan, Nyiregyhaza, Gyor,
#  Szazhalombatta, Bekescsaba, Bekes, Eger, Komlo, Oroszlany
# In some of the cities not all the frequencies are available.
# freq sr fec mod
C 121000000 6900000 NONE QAM256
C 354000000 6900000 NONE QAM256
C 362000000 6900000 NONE QAM256
C 370000000 6900000 NONE QAM256
C 378000000 6900000 NONE QAM256
C 386000000 6900000 NONE QAM256
C 394000000 6900000 NONE QAM256
C 402000000 6900000 NONE QAM256
C 410000000 6900000 NONE QAM256
C 746000000 6900000 NONE QAM256
C 754000000 6900000 NONE QAM256
C 762000000 6900000 NONE QAM256
C 770000000 6900000 NONE QAM256
C 778000000 6900000 NONE QAM256
C 786000000 6900000 NONE QAM256
C 794000000 6900000 NONE QAM256
C 850000000 6900000 NONE QAM256
</pre></div>
</code></pre></td></tr></table>
</div> <!-- class=content -->
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) < 0) {
	error("[Imon] no valid port definition");
	configured = -1;
	return configured;
    }

    s = cfg_get("Plugin:Imon", "Pass", "");
    strcpy(ipass, s);
    free(s);

    configured = 1;
    return configured;
}


static void my_imon_version(RESULT * result)
{
    char *val;
    int age;

    if (configure_imon() < 0) {
	SetResult(&result, R_STRING, "");
	return;
    }

    /* read only once */
    age = hash_age(&IMON, "version");
    if (age < 0) {
	char *s;
	init();
	if (err) {
	    SetResult(&result, R_STRING, "");
	    return;
	}
	s = get_value("version");
	for (;;) {		/* interne Versionsnummer killen */
	    if (s[0] == ' ') {
		s = s + 1;
		break;
	    }
	    s = s + 1;
	}
	hash_put(&IMON, "version", s);
    }

    val = hash_get(&IMON, "version", NULL);
    if (val == NULL)
	val = "";
    SetResult(&result, R_STRING, val);
}


static int parse_imon_rates(const char *channel)
{
    char buf[128], in[25], out[25];
    char *s;
    int age;

    qprintf(buf, sizeof(buf), "rate %s in", channel);

    /* reread every half sec only */
    age = hash_age(&IMON, buf);
    if (age > 0 && age <= 500)
	return 0;

    init();			/* establish connection */

    if (err)
	return -1;

    qprintf(buf, sizeof(buf), "rate %s", channel);
    s = get_value(buf);

    if (sscanf(s, "%s %s", in, out) != 2)
	return -1;

    qprintf(buf, sizeof(buf), "rate %s in", channel);
    hash_put(&IMON, buf, in);
    qprintf(buf, sizeof(buf), "rate %s out", channel);
    hash_put(&IMON, buf, out);

    return 0;
}


static void my_imon_rates(RESULT * result, RESULT * arg1, RESULT * arg2)
{
    char *val;
    char buf[128];

    if (configure_imon() < 0) {
	SetResult(&result, R_STRING, "");
	return;
    }

    if (parse_imon_rates(R2S(arg1)) < 0) {
	SetResult(&result, R_STRING, "");
	return;
    }

    qprintf(buf, sizeof(buf), "rate %s %s", R2S(arg1), R2S(arg2));

    val = hash_get(&IMON, buf, NULL);
    if (val == NULL)
	val = "";
    SetResult(&result, R_STRING, val);
}


static void my_imon(RESULT * result, RESULT * arg1)
{
    char *val;
    char *cmd;

    if (configure_imon() < 0) {
	SetResult(&result, R_STRING, "");
	return;
    }

    cmd = R2S(arg1);
    if (parse_imon(cmd) < 0) {
	SetResult(&result, R_STRING, "");
	return;
    }

    val = hash_get(&IMON, cmd, NULL);
    if (val == NULL)
	val = "";
    SetResult(&result, R_STRING, val);
}


int plugin_init_imon(void)
{
    AddFunction("imon", 1, my_imon);
    AddFunction("imon::version", 0, my_imon_version);
    AddFunction("imon::rates", 2, my_imon_rates);
    AddFunction("imon::telmon", 1, my_telmon);

    return 0;
}


void plugin_exit_imon(void)
{
    if (fd > 0) {
	send_command(fd, "quit");
	close(fd);
    }
    hash_destroy(&TELMON);
    hash_destroy(&IMON);
}