/*
	Course Number   : ISYS 116
	Student Name    : Jason Gradziel & Peter Newton
	Student Number  : 826-135-535       826135725
	Professors Name : Gene Rychlewski
	Class Name      : Thursday
	Lab Title       : Assignment # 10 Pgm: PAYCALC
	*/

#include <stdio.h>
#include <conio.h>
#include <stdlib.h>
#include <dos.h>

FILE *Safe_fopen(char *, char *);
void Safe_fclose(FILE *);

typedef struct
{
	char 	emp_id[5];
	float 	pay_rate;
	float	week_day[5];
}	EMP_REC;
/*typedef struct
{
	char	employee_id[5];
	int 	hours_worked[5];
	double	rate_per_hour;
} EMPLOYEE_REC;*/

typedef char *STRING;
//typedef enum {
//	mon,tue,wed,thu,fri,sat,sun
//	} DAY;

main()
{
	clrscr();
	FILE *input_file,
	     *output_file;
	EMP_REC	employee;
	//EMPLOYEE_REC employee;
	int record_count = 0;
	int days;
	double  total_hours,
		payroll=0,
		gross;
	STRING day_names[7] = {"Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday"};
	//DAY    day;

	gotoxy(32,1);	printf("**************");
	gotoxy(32,2);	printf("* Data Calcs *");
	gotoxy(32,3);	printf("**************");

	input_file = Safe_fopen("a:input.dat", "rb");
	output_file = Safe_fopen("a:output.dat", "w");

	gotoxy(6,5);	printf("Employee Id              Days Worked                Houry Rate\n\n");

	for(int day =0; day<5; ++day)
	{
		gotoxy(30,day+7);
		printf("%s",day_names[day]);
	}

	gotoxy(11,14);
	printf("Total Hours");
	gotoxy(32,14);
	printf("Gross Pay");

	fread(&employee, sizeof(EMP_REC), 1, input_file);

	while ( !feof (input_file))
	{
		total_hours=0;
		++record_count;
		fprintf(output_file, "\n\n\t   %s     \t%.2f %.2f %.2f %.2f %.2f\t%.2f",employee.emp_id,employee.week_day[0], employee.week_day[1],employee.week_day[2],employee.week_day[3],employee.week_day[4],employee.pay_rate);
		//%7s%5.2f%5.2f%5.2f%5.2f%5.2f%6.2f", employee.employee_id, employee.week_day[0], employee.hours_worked[1],employee.hours_worked[2],employee.hours_worked[3],employee.hours_worked[4],employee.rate_per_hour);
		//fprintf(input_file, "\n\n%15s%15f%15.2f", employee.employee_id, employee.hours_worked, employee.rate_per_hour);
		//printf("\n\n%7d%5.2f%5.2f%5.2f%5.2f%5.2f%6.2f", employee.employee_id, employee.hours_worked[0], employee.hours_worked[1],employee.hours_worked[2],employee.hours_worked[3],employee.hours_worked[4],employee.rate_per_hour);
		//printf("\n\n\t   %s     \t%.2f %.2f %.2f %.2f %.2f\t%.2f",employee.employee_id,employee.hours_worked[0], employee.hours_worked[1],employee.hours_worked[2],employee.hours_worked[3],employee.hours_worked[4],employee.rate_per_hour);
		gotoxy(9,7);
		for(int a=0; a<5; ++a)
		{
			printf("%c",employee.emp_id[a]);
		}
		for(day =0; day<5; day++)
		{
			gotoxy(40,day+7);
			printf("%.1f",employee.week_day[day]);
			total_hours+=employee.week_day[day];
		}
		gotoxy(59,7);
		printf("$ %.2f",employee.pay_rate);

		gross = total_hours * employee.pay_rate;
		payroll += gross;

		gotoxy(13,16);	printf("%.1f",total_hours);   // Print the totals
		gotoxy(32,16);	printf("$ %.2f",gross);

		fread(&employee, sizeof(EMP_REC), 1, input_file);

		gotoxy(20,22);	printf("End of the %d record.",record_count);
		gotoxy(20,23);	printf("Press any key to continue....");
		getch();
		gotoxy(20,22);	printf("                               ");
		gotoxy(20,23);	printf("                                   ");

		gotoxy(11,16);	printf("                ");    // Clear the totals off the screen
		gotoxy(31,16);	printf("                ");

	}

	gotoxy(20,20);	printf("%d record(s) were written.", record_count);
	gotoxy(49,14);	printf("Total Payroll");
	gotoxy(52,16);	printf("$ %.2f",payroll);

	Safe_fclose(input_file);
	Safe_fclose(output_file);

	gotoxy(20,23);	printf("Program Complete.  Press any key to exit...            ");
	getch();
	return 0;
}

FILE * Safe_fopen(char *f_name, char *mode)
{
	FILE *file_ptr;

	if ( (file_ptr = fopen(f_name, mode)) == NULL)
	{
		fprintf(stderr, "\nError: File %s cannot be opened.", f_name);
		getch();
		exit(1);
	}
	else
	{
	gotoxy(20,22);	printf("File %s was succfully opened.", f_name);
	delay(1000);
	gotoxy(20,22);	printf("                                                        ");
	}
	return file_ptr;
}

void Safe_fclose(FILE *file_ptr)
{
	if ( fclose(file_ptr) == EOF)
	{
		fprintf(stderr, "\nError: The file cannot be closed.");
		getch();
		exit(1);
	}
	else
	{
	gotoxy(20,22);	printf("File was succfully closed.");
	delay(500);
	gotoxy(20,22);	printf("                                  ");
	}
	return;
}