#define _CRT_SECURE_NO_WARNINGS

#include<stdio.h>
#include<stdlib.h>
#include<DAQlib.h>
#include<Windows.h>

#define TRUE 1
#define False 0

#define RUN_SWITCH 1
#define RESET_SWITCH 0
#define ONE_SECOND 1000
#define NUM_DISPLAYS 8
#define TURNOFF 0

//Function Prototypes

void writeNumber(int number);
void writeDigit(int digit, int position);
void runCounter(int startVal, int endVal);


int main(void) {
	int setupNUM;
	int startVAL;
	int endVAL;

	printf("Please enter 4 for the simulator: ");
	scanf("%d", &setupNUM);

	if (setupDAQ(setupNUM) == TRUE) {
		while (continueSuperLoop() == TRUE) {
			printf("Please enter a starting value: ");
			scanf("%d", &startVAL);
			printf("Please enter an ending value: ");
			scanf("%d", &endVAL);

			while (digitalRead(RESET_SWITCH) || digitalRead(RUN_SWITCH) == TRUE) {
				printf("Both switches must be set to off to proceed.");
			}
			writeNumber(startVAL);
			runCounter(startVAL, endVAL);


		}
	}
}

void runCounter(int startVal, int endVal) {
	while (continueSuperLoop() == TRUE) {
		while (digitalRead(RESET_SWITCH) && digitalRead(RUN_SWITCH) == FALSE) {
			for (startVal; startVal <= endVal; startVal++) {
				writeNumber(startVal);
				Sleep(ONE_SECOND);
			}
		}
	}
}

void writeNumber(int number) {
	int pos = 0;
	int digit;

	do {
		digit = number % 10;
		number = number / 10;
		writeDigit(digit, pos);
	} while (pos < NUM_DISPLAYS && number != 0);
	while (pos < NUM_DISPLAYS) {
		displayWrite(TURNOFF, pos);
		pos++;
	}
}

void writeDigit(int digit, int position) {
	static int digitsTable[10] = { 252,96,218,242,102,182,190,224,254,256 };

	displayWrite(digitsTable[digit], position);
}