/* CST 116 LAB3 completed by Bold D. */

#include <iostream>
#include <fstream>	// For the files
#include <iomanip>	// For manipulators & formatting options
#include <string>
using std::cin;
using std::cout;
using std::endl;
using std::setw;
using std::ios;

using std::ifstream;
using std::ofstream;

int total_passengers = 0;		// I set it as a global variable
float grand_total_fare = 0;		// global variable
float Average_CPP = 0;			// Average cost per person is sat a global variable

const int MAX = 500;

int ReadData(ifstream& inFile, int pick[], int drop[], int psgr[], float dist[], float fare[], float toll[]);
void WriteOutputFile(ofstream& outFile, int pick[], int drop[], int psgr[], float dist[], float fare[], float toll[], int counter);
void PrintTotalsAndSummary(ofstream& out, int totalRecords);

int main()
{

	int pick[MAX];
	int drop[MAX];
	int psgr[MAX];
	float dist[MAX];
	float fare[MAX];
	float toll[MAX];
	float total[MAX]{};
	int record_counter(0);
	std::string file_name;

	cout << " \t\tEnter one of the following: small.txt or large.txt:   " << "\n\n" << "\t\t\t\t";
	cin >> file_name;
	cout << "\n";

	ifstream inFile;
	ofstream outFile("lab3_Report.txt"); // Notice how this automatically opens the file
	inFile.open(file_name); // inFile.open() function opens file_name which was created before.

	if (inFile.is_open()) //.is_open() checks if the file is open 
	{
		record_counter = ReadData(inFile, pick, drop, psgr, dist, fare, toll); //ReadData() function called and it returns counter
		inFile.close(); //If the file opened, it should be clsoed back.

		if (outFile.is_open())  //It checks if lab3_Report.txt file is open or not
		{
			WriteOutputFile(outFile, pick, drop, psgr, dist, fare, toll, record_counter); //WriteOutputFile function is called
			PrintTotalsAndSummary(outFile, record_counter);		//PrintTotalsAndSummary function is called 
			outFile.close();		//It needs to be closed
		}

		else
		{
			cout << "Trouble Opening File";
			cout << "\n\n\t\t ** About to EXIT NOW! ** ";
		}

	}
	else
	{
		cout << "Trouble Opening File";
		cout << "\n\n\t\t ** About to EXIT NOW! ** ";
	}
	return 0;
}
int ReadData(ifstream& inFile, int pick[], int drop[], int psgr[], float dist[], float fare[], float toll[])
{
	int counter = 0;
	inFile >> pick[counter] >> drop[counter] >> psgr[counter] >> dist[counter] >> fare[counter] >> toll[counter]; // Priming Read

	float total_fare[MAX]; //Here, I initialized the total_fare[MAX]
	float cost_per_mile[MAX]; //Here, I initialized the cost per mile as well

	while (!inFile.eof()) //While inFile or file_name is open
	{
		total_fare[counter] = fare[counter] + toll[counter];	//Here, total_fare[] is calculated. 
		cost_per_mile[counter] = fare[counter] / dist[counter];	//Here, cost per mile is calculated.

		cout << setiosflags(ios::left)							//It prints out the following arrays on the screen
			<< setw(5) << pick[counter] << resetiosflags(ios::left)
			<< setw(10) << drop[counter] << resetiosflags(ios::left)
			<< setw(12) << psgr[counter] << resetiosflags(ios::left)
			<< setw(14) << dist[counter] << resetiosflags(ios::left)
			<< setw(14) << fare[counter] << resetiosflags(ios::left)
			<< setw(14) << toll[counter] << resetiosflags(ios::left)
			<< setw(14) << total_fare[counter]				//This line calculates total fare
			<< setw(14) << cost_per_mile[counter]			// This line calculates the cost per mile.
			<< endl;

		counter++;
		inFile >> pick[counter] >> drop[counter] >> psgr[counter] >> dist[counter] >> fare[counter] >> toll[counter];
		//It prints the above arrays from file file_name

	}


	for (int p = 0; p < counter; p++) {
		total_passengers = total_passengers + psgr[p];			// This for loop adds up all passengers in psgr[].
		grand_total_fare = grand_total_fare + total_fare[p];	// This loop adds up all total fare.
		Average_CPP = Average_CPP + cost_per_mile[p];			// This loop adds up all cost per mile to Average cost per person.
	}

	return counter; //The actual or return value of ReadData function converts to int record_counter. 
}

void WriteOutputFile(ofstream& outFile, int pick[], int drop[], int psgr[], float dist[], float fare[], float toll[],
	int counter)
{
	outFile << "   Here is the Output File\n\n" << endl;
	for (int r = 0; r <= counter - 1; r++)
	{
		outFile << setiosflags(ios::left) << setw(5)
			<< pick[r] << resetiosflags(ios::left)
			<< setw(10) << drop[r] << resetiosflags(ios::left)
			<< setw(12) << psgr[r] << resetiosflags(ios::left)
			<< setw(14) << dist[r] << resetiosflags(ios::left)
			<< setw(14) << fare[r] << resetiosflags(ios::left)
			<< setw(14) << toll[r] << resetiosflags(ios::left)
			<< setw(14) << toll[r] + fare[r] //This line prints out the total
			<< setw(14) << fare[r] / dist[r] //This line prints out the cost per mile
			<< endl;
	}
}

void PrintTotalsAndSummary(ofstream& outFile, int totalRecords)
{
	// To screen
	cout << "\n\n\t\t** Total Records: " << totalRecords << " **\n\n"
		<< "\t\t Total people transforted: " << total_passengers << "\n"
		<< "\t\t\t       Total paid: $" << grand_total_fare << "\n"
		<< "\t\t  Average cost per person: $" << Average_CPP << "\n";

	// To file
	outFile << "\n\n\t** Total Records: " << totalRecords << " **\n\n"
		<< "\t\t Total people transforted: " << total_passengers << "\n"
		<< "\t\t\t       Total paid: $" << grand_total_fare << "\n"
		<< "\t\t  Average cost per person: $" << Average_CPP << "\n";
}