//
// ZoneMinder Control Utility, $Date$, $Revision$
// Copyright (C) 2003  Philip Coombes
// 
// 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 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
// 

#include <getopt.h>
#include "zm.h"

void Usage( int status=-1 )
{
	fprintf( stderr, "zmu <-d device_no> [-v]\n" );
	fprintf( stderr, "zmu [-m monitor_id] [-v] [function]\n" );
	fprintf( stderr, "Options:\n" );
	fprintf( stderr, "  -d, --device <device_no>       : Get the current video device settings for /dev/video<device_no>\n" );
	fprintf( stderr, "  -m, --monitor <monitor_id>     : Specify which monitor to address, default 1 if absent\n" );
	fprintf( stderr, "  -v, --verbose                  : Produce more verbose output\n" );
	fprintf( stderr, "  -s, --state                    : Output the current monitor state, 0 = idle, 1 = alarm, 2 = alert\n" );
	fprintf( stderr, "  -i, --image [image_index]      : Write captured image to disk as <monitor_name>.jpg, last image captured\n" );
	fprintf( stderr, "                                   or specified ring buffer index if given.\n" );
	fprintf( stderr, "  -t, --timestamp [image_index]  : Output captured image timestamp, last image captured or specified\n" );
	fprintf( stderr, "                                   ring buffer index if given\n" );
	fprintf( stderr, "  -r, --read_index               : Output ring buffer read index\n" );
	fprintf( stderr, "  -w, --write_index              : Output ring buffer write index\n" );
	fprintf( stderr, "  -e, --event                    : Output last event index\n" );
	fprintf( stderr, "  -f, --fps                      : Output last Frames Per Second captured reading\n" );
	fprintf( stderr, "  -z, --zones                    : Write last captured image overlaid with zones to <monitor_name>-Zones.jpg\n" );
	fprintf( stderr, "  -a, --alarm                    : Force alarm in monitor, this will trigger recording until cancelled with -c\n" );
	fprintf( stderr, "  -c, --cancel                   : Cancel a forced alarm in monitor, required after being enabled with -a\n" );
	fprintf( stderr, "  -h, --help - This screen\n" );

	exit( status );
}

int main( int argc, char *argv[] )
{
	static struct option long_options[] = {
		{"device", 1, 0, 'd'},
		{"monitor", 1, 0, 'm'},
		{"verbose", 0, 0, 'v'},
		{"image", 2, 0, 'i'},
		{"timestamp", 2, 0, 't'},
		{"state", 0, 0, 's'},
		{"read_index", 0, 0, 'r'},
		{"write_index", 0, 0, 'w'},
		{"event", 0, 0, 'e'},
		{"fps", 0, 0, 'f'},
		{"zones", 0, 0, 'z'},
		{"alarm", 0, 0, 'a'},
		{"cancel", 0, 0, 'c'},
		{"help", 0, 0, 'h'},
		{0, 0, 0, 0}
	};

	int dev_id = -1;
	int mon_id = 1;
	bool verbose = false;
	typedef enum {
		BOGUS=0x0000,
		STATE=0x0001,
		IMAGE=0x0002,
		TIME=0x0004,
		READ_IDX=0x0008,
		WRITE_IDX=0x0010,
		EVENT=0x0020,
		FPS=0x0040,
		ZONES=0x0080,
		ALARM=0x0100,
		CANCEL=0x0200
	} Function;
	Function function = BOGUS;

	int image_idx = -1;
	while (1)
	{
		int this_option_optind = optind ? optind : 1;
		int option_index = 0;
		int opterr = 1;

		int c = getopt_long (argc, argv, "d:m:vsrwie::t::fzach", long_options, &option_index);
		if (c == -1)
		{
			break;
		}

		switch (c)
		{
			case 'd':
				dev_id = atoi(optarg);
				break;
			case 'm':
				mon_id = atoi(optarg);
				break;
			case 'v':
				verbose = true;
				break;
			case 's':
				function = Function(function | STATE);
				break;
			case 'i':
				function = Function(function | IMAGE);
				if ( optarg )
				{
					image_idx = atoi( optarg );
				}
				break;
			case 't':
				function = Function(function | TIME);
				if ( optarg )
				{
					image_idx = atoi( optarg );
				}
				break;
			case 'r':
				function = Function(function | READ_IDX);
				break;
			case 'w':
				function = Function(function | WRITE_IDX);
				break;
			case 'e':
				function = Function(function | EVENT);
				break;
			case 'f':
				function = Function(function | FPS);
				break;
			case 'z':
				function = Function(function | ZONES);
				break;
			case 'a':
				function = Function(function | ALARM);
				break;
			case 'c':
				function = Function(function | CANCEL);
				break;
			case 'h':
				Usage( 0 );
				break;
			case '?':
				Usage();
				break;
			default:
				//fprintf( stderr, "?? getopt returned character code 0%o ??\n", c );
				break;
		}
	}

	if (optind < argc)
	{
		fprintf( stderr, "Extraneous options, " );
		while (optind < argc)
			fprintf( stderr, "%s ", argv[optind++]);
		fprintf( stderr, "\n");
		Usage();
	}

	if ( dev_id >= 0 && function != BOGUS )
	{
		fprintf( stderr, "Error, -d option cannot be used with -m or related options\n" );
		Usage();
	}
	//printf( "Monitor %d, Function %d\n", mon_id, function );

	dbg_name = "zmu";
	dbg_level = -1;

	DbgInit();

	if ( !mysql_init( &dbconn ) )
	{
		fprintf( stderr, "Can't initialise structure: %s\n", mysql_error( &dbconn ) );
		exit( mysql_errno( &dbconn ) );
	}
	if ( !mysql_connect( &dbconn, ZM_DB_SERVER, ZM_DB_USERB, ZM_DB_PASSB ) )
	{
		fprintf( stderr, "Can't connect to server: %s\n", mysql_error( &dbconn ) );
		exit( mysql_errno( &dbconn ) );
	}
	if ( mysql_select_db( &dbconn, ZM_DB_NAME ) )
	{
		fprintf( stderr, "Can't select database: %s\n", mysql_error( &dbconn ) );
		exit( mysql_errno( &dbconn ) );
	}

	if ( dev_id >= 0 )
	{
		char vid_string[1024] = "";
		bool ok = Monitor::GetCurrentSettings( dev_id, vid_string, verbose );
		printf( "%s", vid_string );
		exit( ok?0:-1 );
	}
	else
	{
		Monitor *monitor = Monitor::Load( mon_id );

		if ( monitor )
		{
			if ( verbose )
			{
				printf( "Monitor %d(%s)\n", monitor->Id(), monitor->Name() );
			}
			char separator = ' ';
			bool have_output = false;
			if ( function & STATE )
			{
				Monitor::State state = monitor->GetState();
				if ( verbose )
					printf( "Current state: %s\n", state==Monitor::ALARM?"Alarm":(state==Monitor::ALERT?"Alert":"Idle") );
				else
				{
					if ( have_output ) printf( "%c", separator );
					printf( "%d", state );
					have_output = true;
				}
			}
			if ( function & TIME )
			{
				time_t timestamp = monitor->GetTimestamp( image_idx );
				if ( verbose )
				{
					char timestamp_str[64] = "None";
					if ( timestamp )
						strftime( timestamp_str, sizeof(timestamp_str), "%Y-%m-%d %H:%M:%S", localtime( &timestamp ) );
					if ( image_idx == -1 )
						printf( "Time of last image capture: %s\n", timestamp_str );
					else
						printf( "Time of image %d capture: %s\n", image_idx, timestamp_str );
				}
				else
				{
					if ( have_output ) printf( "%c", separator );
					printf( "%d", timestamp );
					have_output = true;
				}
			}
			if ( function & READ_IDX )
			{
				if ( verbose )
					printf( "Last read index: %d\n", monitor->GetLastReadIndex() );
				else
				{
					if ( have_output ) printf( "%c", separator );
					printf( "%d", monitor->GetLastReadIndex() );
					have_output = true;
				}
			}
			if ( function & WRITE_IDX )
			{
				if ( verbose )
					printf( "Last write index: %d\n", monitor->GetLastWriteIndex() );
				else
				{
					if ( have_output ) printf( "%c", separator );
					printf( "%d", monitor->GetLastWriteIndex() );
					have_output = true;
				}
			}
			if ( function & EVENT )
			{
				if ( verbose )
					printf( "Last event id: %d\n", monitor->GetLastEvent() );
				else
				{
					if ( have_output ) printf( "%c", separator );
					printf( "%d", monitor->GetLastEvent() );
					have_output = true;
				}
			}
			if ( function & FPS )
			{
				if ( verbose )
					printf( "Current capture rate: %.2f frames per second\n", monitor->GetLastEvent() );
				else
				{
					if ( have_output ) printf( "%c", separator );
					printf( "%.2f", monitor->GetFPS() );
					have_output = true;
				}
			}
			if ( function & IMAGE )
			{
				if ( verbose )
				{
					if ( image_idx == -1 )
						printf( "Dumping last image captured to %s.jpg\n", monitor->Name() );
					else
						printf( "Dumping buffer image %d to %s.jpg\n", image_idx, monitor->Name() );
				}
				monitor->GetImage( image_idx );
			}
			if ( function & ZONES )
			{
				if ( verbose )
					printf( "Dumping zone image to %s-Zones.jpg\n", monitor->Name() );
				monitor->ReloadZones();
			}
			if ( function & ALARM )
			{
				if ( verbose )
					printf( "Forcing alarm\n" );
				monitor->ForceAlarm();
			}
			if ( function & CANCEL )
			{
				if ( verbose )
					printf( "Cancelling alarm\n" );
				monitor->CancelAlarm();
			}
			if ( have_output )
			{
				printf( "\n" );
			}
			if ( !function )
			{
				Usage();
			}
		}
		else
		{
			fprintf( stderr, "Error, invalid monitor id %d", mon_id );
			exit( -1 );
		}
	}
	return( 0 );
}