#include <stdio.h>
#include <stdlib.h>
#include <windows.h>
#include <winbase.h>

/* Written by Wyatt Carss on July 5th, 2010 around 12:50 PM
 *
 * Updated rather substantially on September 1st at 1:45 AM!
 *
 * Just a timer program; planning to use it to break my time into 25 minute
 * chunks, with 5 minute breaks. Every 4 of these (2 hours), take a longer
 * break and return to work. New use: this wakes me up every morning. :)
 *
 * no longer uses usleep; uses windows "Sleep" instead. Because windows doesn't
 * have a working implementation of usleep. :/
 *
 * after running, it gives you the opportunity to start the program over.
 *
 * Supports 4 methods of calling:
 *
 * C:\Users\wcarss\timer.exe
 * C:\Users\wcarss\timer.exe h m s
 * C:\Users\wcarss\timer.exe h m s filename
 * C:\Users\wcarss\timer.exe filename
 *
 * In each case, the program will ask you for whatever information you didn't
 * provide. Units will break things - it takes space separated integer values
 * for hours, minutes, and seconds.
 *
 * Additionally, (unfortunately) the command-line filename input seems to be
 * broken :/
 *
 * Something is weird about the way Windows uses quotes in command lines - or
 * perhaps it's just VLC. It'll take some more testing and tinkering. For now,
 * just input your filepath at the program prompt and only specify times as
 * arguments.
 *
 *
 * Typical usage:
 *
 * C:\Uses\wcarss\timer.exe
 * Timer!
 *
 * Enter how many hours you'd like the timer to run for.
 * 0
 * Enter how many minutes you'd like the timer to run for.
 * 0
 * Enter how many seconds you'd like the timer to run for.
 * 1
 * What song would you like to play?
 * C:\Users\wcarss\Desktop\01 The Suburbs.mp3
 * All done! Total time elapsed: 0 hours, 0 minutes, 1 seconds.
 * Run again?
 * y
 * Use last settings?
 * y
 * All done! Total time elapsed: 0 hours, 0 minutes, 1 seconds.
 * Run again?
 * y
 * Use last settings?
 * n
 * Timer!
 *
 * Enter how many hours you'd like the timer to run for.
 * 0
 * Enter how many minutes you'd like the timer to run for.
 * 0
 * Enter how many seconds you'd like the timer to run for.
 * 2
 * What song would you like to play?
 * C:\Users\wcarss\Desktop\01 The Suburbs.mp3
 * All done! Total time elapsed: 0 hours, 0 minutes, 2 seconds.
 *
*/

int main(int argc, char *argv[])
{
	int hours = 0, minutes = 0, seconds = 0;
	char run[10], buf[10], command[1024], filename[1024];
	strcpy(run, "f");

	/* Order of 'run' values:
	 *
	 * f  f  f  f f - start
	 * n  y  y  y y - go again
	 *    n  y  n y - use last settings
	 *    n  n  y y - go again
	 *          . .
	 *          . .
	 *          . .
	 *
	 * During the first run of the program, run is "f".
	 * On a second run of through program, run will be set
	 * to "y", then for 'use last settings' to "y" or "n".
	 * At termination of the program, it will be "n".
         */

	printf("Timer!\n\n");

	do
	{
		if(strcmp(run, "y") == 0)
		{
			printf("Use last settings?\n");
			fgets(run, 9, stdin);
			run[strlen(run) - 1] = '\0';
			if((strcmp(run, "yes") && strcmp(run, "Yes") && strcmp(run, "Y")) == 0)
			{
				strcpy(run, "y");
			}
		}

		/* if run is not "y" here, this is the first time the program was run or
		   the user chose not to use the settings from last time */
		if(strcmp(run, "y") != 0)
		{
			strcpy(command, "\"\"C:\\Program Files (x86)\\VideoLAN\\VLC\\vlc.exe\" \"");

			if((strcmp(run, "f") == 0) && (argc == 4 || argc == 5))
			{
				sscanf(argv[1], "%d", &hours);
				sscanf(argv[2], "%d", &minutes);
				sscanf(argv[3], "%d", &seconds);
			}
			else
			{
				printf("Enter how many hours you'd like the timer to run for.\n");
				fgets(buf, 10, stdin);
				sscanf(buf, "%d", &hours);
				printf("Enter how many minutes you'd like the timer to run for.\n");
				fgets(buf, 10, stdin);
				sscanf(buf, "%d", &minutes);
				printf("Enter how many seconds you'd like the timer to run for.\n");
				fgets(buf, 10, stdin);
				sscanf(buf, "%d", &seconds);
			}

			if(argc == 2 || argc == 5)
			{
				/* argc - 1 is 1 or 4, being the second or fifth arguments */
				sscanf(argv[argc - 1], "%s", filename);
			}
			else
			{
				printf("What song would you like to play?\n");
				fgets(filename, 1024, stdin);
				filename[strlen(filename)-1] = '\0';
			}
			strcat(command, filename);
			strcat(command, "\"\"");
		}

		if(seconds + hours + minutes != 0)
		{
			Sleep(((hours * 60 * 60) + (minutes * 60) + seconds) * 1000);

			printf("All done! Total time elapsed: %d hours, %d minutes, %d seconds.\n", hours, minutes, seconds);
			system(command);
		}

		printf("Run again?\n");
		fgets(run, 9, stdin);
		run[strlen(run) - 1] = '\0';
	        if((strcmp(run, "yes") && strcmp(run, "Yes") && strcmp(run, "Y")) == 0)
		{
			strcpy(run, "y");
		}
	
	}while(strcmp(run, "y") == 0);

	return 0;
}