#include <iostream>
#include <iomanip>
#include <string>
#include <fstream>
using namespace std;

int employeeNumberAsker();
int employeeDataGatherer(ofstream, int);
int averageDaysAbsenceFinder(int, int);

int main()
{
	int employeeCount, totalAbsences;
	ofstream employeeDataFile("employeeAbsences.txt");
	cout << "Average Absence Calculator\n\n";

	employeeCount = employeeNumberAsker();
	totalAbsences = employeeDataGatherer(employeeDataFile, employeeCount);
	averageDaysAbsenceFinder(employeeCount, totalAbsences);

	cin.get();
	cin.get();
	return 0;
}

int employeeNumberAsker()
{
	int employeeCount;

	cout << "Please enter the number of employees in the company. ";
	cin >> employeeCount;
	while (employeeCount < 0)
	{
		cout << "You've entered a negative number for the amount of employees in the company. Please enter a positive number. ";
		cin >> employeeCount;
	}
	return employeeCount;
}

int employeeDataGatherer(ofstream employeeDataFile1, int numberOfEmployees)
{
	int employeeIDNumber, employeeAbsenceNumber, absenceTotal = 0;

	employeeDataFile1.open("employeeAbsences.txt");

	for (int i = 1; i <= numberOfEmployees; i++)
	{
		cout << "\nPlease enter the employee ID number for employee number " << i << ". ";
		cin >> employeeIDNumber;

		cout << "Please enter the number of days that employee number " << i << " has missed this year. ";
		cin >> employeeAbsenceNumber;

		while (employeeAbsenceNumber < 0)
		{
			cout << "\nYou've entered a negative number for the number of absences for this employee. Please enter a positive number for the number of days this employee has missed this year. ";
			cin >> employeeAbsenceNumber;
		}

		employeeDataFile1 << employeeIDNumber << " " << employeeAbsenceNumber << endl;

		absenceTotal += employeeAbsenceNumber;
	}
	employeeDataFile1.close();
	return absenceTotal;
}

int averageDaysAbsenceFinder(int employeeTotal, int absenceTotal)
{
	int averageDaysMissedPerEmployee;

	averageDaysMissedPerEmployee = absenceTotal / employeeTotal;

	return averageDaysMissedPerEmployee;
}