#include <pch.h>
#include <iostream>
#include <string>
#include <fstream>
#include <iomanip>

using namespace std;

const int NO_OF_STUDENTS = 20;

struct studentType
{
	string studentFName;
	string studentLName;
	int testScore;
	char grade;
};

void getData(ifstream& inFile, studentType sList[], int listSize);
void calculateGrade(studentType sList[], int listSize);
int highestScore(const studentType sList[], int listSize);
void printResult(ofstream& outFile, const studentType sList[], int listSize);

int main()
{
	ifstream inData;
	ofstream outData;
	studentType studentList[NO_OF_STUDENTS];

	// Open input file
	inData.open("Ch9_Ex2Data.txt");
	if (!inData)
	{
		cout << "The input file does not exist. Program terminates!"
			<< endl;
		return 1;
	}

	// Open output file
	outData.open("Ch9_Ex2Out.txt");
	if (!outData)
	{
		cout << "Cannot open the output file. Program terminates!"
			<< endl;
		return 1;
	}

	// TODO
	getData(inData, studentList, 20);
	calculateGrade(studentList, 20);
	printResult(outData, studentList, 20);
	return 0;
}

void getData(ifstream& inFile, studentType sList[], int listSize)
{
	for (int i = 0; i < listSize; i++)
		inFile >> sList[i].studentFName >> sList[i].studentLName
		>> sList[i].testScore;
}

void calculateGrade(studentType sList[], int listSize)
{
	//Done
	{

		for (int i = 0;i < NO_OF_STUDENTS; i++)
			if (sList[i].testScore < 60)
				sList[i].grade = 'F';
			else if (sList[i].testScore < 70)
				sList[i].grade = 'D';
			else if (sList[i].testScore < 80)
				sList[i].grade = 'C';
			else if (sList[i].testScore < 90)
				sList[i].grade = 'B';
			else
				sList[i].grade = 'A';
	}

}
int highestScore(const studentType sList[], int listSize)
{
	int hScore = sList[0].testScore;

	// TODO
	for (int i = 0;i < 20;i++)
	{
		if (hScore < sList[i].testScore)
			hScore = sList[i].testScore;
	}

	return hScore;
}

void printResult(ofstream& outFile, const studentType sList[], int listSize)
{
	cout << left << setw(30) << "Student Name" << right << setw(10) << "TestScore" << right << setw(7) << "Grade" << endl;
	string name;
	int high, i;

	for (i = 0; i < listSize; i++)
	{
		name = sList[i].studentLName + ", " + sList[i].studentFName;
		cout << left << setw(30) << name << right << setw(10) << sList[i].testScore << right << setw(7) << sList[i].grade << endl;

	}
}