//
//		Calculate grades using the kinder curve
//	Formula: f(x)=x+a(100-x)
//
//
//

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

int main()
{
	const string DASHESLINE = "________________________________________________";
	ifstream gradesin;
	ofstream gradesout;
	int VTID;
	string name,
		kinder,
		alpha,
		dummy,
		dummy2;
	int WHwQ,			// Introducing the weighted values signified by putting "W" in front of the grade
		WT1,
		WT2,
		WFin,
		WP1,
		WP2,
		WP3,
		WP4,
		WP5,
		WP6,
		HwQ,		// Introducing values for each part of grades
		T1,
		T2,
		Fin,
		P1,
		P2,
		P3,
		P4,
		P5,
		P6,
		xHwQ,
		xT1,
		xT2,
		xFin,
		xP1,
		xP2,
		xP3,
		xP4,
		xP5,
		xP6,
		x;			// grade
	double	c,		//curved grade
		xc,			// percentage curve
		px,			// percentage uncurve
		a;			// Krider value

	gradesout.open("gradesout.txt");
	gradesout << fixed << setprecision(0) << noshowpoint;
	gradesin.open("gradesin.txt");

	// line skipping
	gradesin.ignore(1500, '\n');
	gradesin.ignore(1500,'\n');

	//read file
	gradesin >> WHwQ >> WT1 >> WT2 >> WFin >> WP1 >> WP2 >> WP3 >> WP4 >> WP5 >> WP6 >> dummy >> dummy2;
	gradesin >> kinder >> alpha >> a;
	gradesin.ignore(1500,'\n');
	gradesin >> VTID >> name >> HwQ >> T1 >> T2 >> Fin >> P1 >> P2 >> P3 >> P4 >> P5 >> P6;
	gradesout << "Dwight Barnette" << '\n' << "Student Score/Curve" << '\n' << '\n' << DASHESLINE << '\n' << "Name" << '\t' << '\t' << "Score" <<  '\t' << "Curve" << '\t' <<  '\n' << name << '\t' << px << '\t' << xc << '\n' << '\n' << DASHESLINE;  // header for grades out file
	while (gradesin)
	{
		if (WHwQ+WT1+WT2+WFin+WP1+WP2+WP3+WP4+WP5+WP6 != 100)
		{
			cout << "Grade values does equal 100%" << endl;
			gradesout << "Grade value does not equal 100%" << endl;
			return 0;
		}
		else
		{
			xHwQ = HwQ*WHwQ;
			xT1 = T1*WT1;
			xT2 = T2*WT2;
			xFin = Fin*WFin;
			xP1 = P1*WP1;
			xP2 = P2*WP2;
			xP3 = P3*WP3;
			xP4 = P4*WP4;
			xP5 = P5*WP5;
			xP6 = P6*WP6;
			x = xHwQ+xT1+xT2+xFin+xP1+xP2+xP3+xP4+xP5+xP6;
			px = x*(.01);
			c = x+a*(100-x);
			xc = c *(.01);
		}// end else
	}//end while
	gradesin.close();
	gradesout.close();
	return 0;

}// end of main