/*
 * =====================================================================================
 *
 *       Filename:  cva-input.c
 *
 *    Description:  This is an example program to demonstrate the XTest and XInput
 *    				functionality in libcvautomation
 *
 *        Created:  06/26/2012 09:20:20 AM
 *       Revision:  none
 *       Compiler:  gcc
 *
 *         Author:  Bradlee Speice (), bspeice.nc@gmail.com
 *   Organization:  
 *
 * =====================================================================================
 */
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <getopt.h>
#include <limits.h>
#include <math.h>

#include <libcvautomation/libcvautomation.h>

void usage ();
void checkXTEEnabled (Display *display);

int main( int argc, char** argv )
{
	/* Set up for getopt */
	int mouseButton;
		mouseButton = 1;
	char *separator;
		separator = ",";
	char *xDisplayLocation;
		xDisplayLocation = "";
	Display *display;
		display = NULL;

	int searchMethod, tolerance, timeout;
	searchMethod = 0;
	tolerance = INT_MAX;
	timeout = 5;

	int returnCode = 1;

	/* Start getopt */
	while (1)
	{
		static struct option long_options[] =
		{
				{"help",		no_argument,		0,	'h'},
				{"usage",		no_argument,		0,	'u'},
				{"version",		no_argument,		0,	'v'},
				{"display",		required_argument,	0,	'd'},
				{"search-method",required_argument,	0,	'm'},
				{"tolerance",	required_argument,	0,	't'},
				{"button",		required_argument,	0,	'b'},
				{"string",		required_argument,	0,	's'},
				{"sane-tolerance", required_argument, 0,'o'},
				{"print-format",required_argument,	0,	'p'},
				{"timeout",		required_argument,	0,	'i'},
				/* Other valid values are "optional_argument"
				 * and "required_argument" */
				{0, 0, 0, 0}
		};

		int option_index = 0;
		opterr = 0;

		int c = getopt_long (argc, argv, "hud:m:t:b:cs:", /* Use a single colon for required_argument,
														   * double colon for optional_argument */
							long_options, &option_index);

		/* We're done with parsing options */
		if (c == -1)
			break;

		switch (c)
		{
			case 0:
				break;

			case 'h':
				usage();
				break;

			case 'u':
				usage();
				break;

			case 'v':
				usage();
				break;

			case 'd':
				if (display == NULL)
					display = XOpenDisplay( optarg );
				else
				{
					XCloseDisplay( display );
					XOpenDisplay( optarg );
				}

			case 'm':
				searchMethod = atoi(optarg);
				break;

			case 't':
				tolerance = atoi(optarg);
				break;

			case 'b':
				mouseButton = atoi(optarg);
				break;

			case 's':
				if (display == NULL)
					display = XOpenDisplay( xDisplayLocation );
				cvaPoint returnPoint;
				returnPoint = xte_commandString( display, optarg, mouseButton, searchMethod, tolerance, timeout );

				if (returnPoint.x != -1 && returnPoint.y != -1)
				{
					printf("%s%s%i%s%i\n", optarg, separator, returnPoint.x, separator, returnPoint.y);
					returnCode = 0;
				}

				else if (returnPoint.x == -2 && returnPoint.y == -2)
				{
					/* Not an error, just that the command didn't use returnPoint */
					printf("%s\n", optarg);
					returnCode = 0;
				}

				break;

			case 'o':
				tolerance = atoi(optarg);
				/* Provide a more sane way to configure tolerance:
				 * --sane-tolerance=100 ~= INT_MAX */
				tolerance = pow(1.2397076, tolerance);
				break;

			case 'i':
				timeout = atoi(optarg);
				break;

			case '?':
				/* Error routine */
				break;

			default:
				fprintf( stderr, "Unknown option..." );
				exit(0);
		};
	}

	if ( display != NULL )
		XCloseDisplay( display );

	return returnCode;
}

/* 
 * ===  FUNCTION  ======================================================================
 *         Name:  usage
 *  Description:  I really shouldn't need to write this
 * =====================================================================================
 */
void usage ( )
{
	fprintf( stderr, "\
Libcvautomation version: %s\n\
cva-input -s <command_string>\n\
\n\
The cva-input program demonstrates the XTest section of libcvautomation.\n\
The return code is 1 if there are no commands given, or if all commands fail.\n\
It is 0 otherwise.\n\
\n\
Usage: \n\
\n\
\t-h, --help:\t\tDisplay this usage message.\n\
\t-u, --usage:\t\tDisplay this usage message.\n\
\t-d, --display:\t\tSpecify the X display to use.\n\
\t-m, --search-method:\tSpecify a method to search by. See `cva-match --help\'\n\
\t\t\t\tfor more information on this.\n\
\t-t, --tolerance:\tSpecify how strict the match is.\n\
\t-b, --button:\t\tSpecify the mouse button to press (default 1).\n\
\t-c, --center:\t\tInstead of matching the top-left corner of an image,\n\
\t\t\t\tmatch the center of the image.\n\
\t-o, --sane-tolerance:\tSet the tolerance using a scale of 1-100,\n\
\t-i, --timeout:\t\tSpecify the timeout to use when using the 'waitfor' function\n\
\t-s, --string:\t\tCommand string - see below.\n\
\t\t\t\tPlease make sure to use the '-t' or '-o' options when using this.\n\
\n\
This program works kind of like a mini-language. All options\n\
are parsed left-to-right, and executed right there. Thus, specifying \"--display\"\n\
at different places in the options will cause this program to use the most recent\n\
given display.\n\
Available commands:\n\
\tmouseclick:\tClick the mouse in-place.\n\
\timouseclick:\tClick the mouse at an image's top-left corner.\n\
\ticmouseclick:\tClick the mouse at an image's center.\n\
\tmousexy:\tMove the mouse to the given coordinate.\n\
\tmouserxy:\tMove the mouse by the given x and y values (relative motion).\n\
\tmouseimage:\tMove the mouse to an image's top-left corner.\n\
\tcmouseimage:\tMove the mouse to an image's center.\n\
\tmousedown:\tPush and leave down a mouse button.\n\
\tmouseup:\tRelease a mouse button.\n\
\tmousejiggle:\tJiggle the mouse (helps to activate some widgets).\n\
\tmousescrollu:\tScroll the mouse wheel up.\n\
\tmousescrolld:\tScroll the mouse wheel down.\n\
\tmouselocation:\tReturn the location of the mouse.\n\
\tkeyclick:\tClick a keyboard button.\n\
\tkeydown:\tPush and leave down a keyboard button.\n\
\tkeyup:\tRelease a keyboard button.\n\
\tkeystring:\tInput a string of keys to X11.\n\
\twaitfor:\tWait for an image to be displayed.\n\
\n\
If you have any questions, comments, concerns, email <%s>.\n\n", LIBCVAUTOMATION_VERSION, LIBCVAUTOMATION_BUGREPORT );

	exit (0);

}		/* -----  end of function usage  ----- */

void checkXTEEnabled ( Display *display )
{
	/* Make sure we have the XTest Extensions enabled.
	 * This is a quick wrapper. */
	if (! xte_XTestSupported( display ))
	{
		printf("The XTest extension is not supported! Aborting...");
		exit(255);
	}
}

/* Doxygen Information */
/** \file cva-input.c
 * \brief The cva-input program to demonstrate Libcvautomation's XTest functionality
 * \author Bradlee Speice <bspeice@uncc.edu>
 */

/* The biggest purpose of documenting this code is to trick doxygen into making a man page for it. */
/** \page cva-input
 *
 * \author Bradlee Speice <bspeice@uncc.edu>
 * \section usage Usage:
 * This program works kind of like a mini-language. All options are parsed left-to-right, and executed right there. Thus, specifying "--display" at different places in the options will cause this program to use the most recent given display.
 * The return code is 1 if there are no commands given, or if all commands fail. It is 0 otherwise.
 * \section example Example Usage:
 * Click the mouse:
 *
 * cva-input -s 'click 1'
 * 
 * Press key 'a':
 *
 * cva-input -s 'keyclick a'
 *
 * \section options Full Options:
 *
 * -h, --help:			Display this usage message.
 *
 * -u, --usage:			Display this usage message.
 *
 * -d, --display:		Specify the X display to use.
 *
 * -m, --search-method:	Specify a method to search by. See <tt>cva-match --help</tt> for more information on this.
 *
 * -t, --tolerance:		Specify how strict the match is.
 *
 * -b, --button:		Specify the mouse button to press (default 1).
 *
 * -c, --center:		Instead of matching the top-left corner of an image, match the center of the image.
 *
 * -o, --sane-tolerance: Set the tolerance using a scale of 1-100, rather than INT_MIN to INT_MAX (100 ~= INT_MAX)
 *
 * -s, --string:		Command string - see below.
 *
 * -i, --timeout:		Specify the timeout to use when using the 'waitfor' command
 *
 *
 * \section commands Full Command List:
 * \c mouseclick:	Click the mouse in-place.
 *
 * \c imouseclick:	Click the mouse at an image's top-left corner.
 *
 * \c icmouseclick:	Click the mouse at an image's center.
 *
 * \c mousexy:	Move the mouse to the given coordinate.
 *
 * \c mouserxy:	Move the mouse by the given x and y values (relative motion).
 *
 * \c mouseimage:	Move the mouse to an image's top-left corner.
 *
 * \c cmouseimage:	Move the mouse to an image's center.
 *
 * \c mousedown:	Push and leave down a mouse button.
 *
 * \c mouseup:	Release a mouse button.
 *
 * \c mousejiggle:	Jiggle the mouse (helps to activate some widgets).
 *
 * \c mousescrollu: Scroll the mouse wheel up
 *
 * \c mousescrolld: Scroll the mouse wheel down
 *
 * \c mouselocation: Return the current location of the mouse
 *
 * \c keyclick:	Click a keyboard button.
 *
 * \c keydown:	Push and leave down a keyboard button.
 *
 * \c keyup:	Release a keyboard button.
 *
 * \c keystring:	Input a string of keys to X11.
 *
 * \c waitfor:	Wait for an image to be displayed
 *
 * \section contact Contact Information:
 * Questions? Comments? Concerns? Suggestions? Send all feedback to Bradlee Speice at <bspeice@uncc.edu>
 */