#include <iostream>
#include <fstream>	// For the files!!!!
#include <iomanip>	// For manipulators & formatting options
#include <string>
#include<array> 

using std::cin;
using std::cout;
using std::endl;
using std::setw;
using std::ios;
using std::string;
using std::ifstream;
using std::ofstream;
using std::setprecision;



// The max amount of records in one file
const int MAX = 50;

// initialize all functions
int ReadData(ifstream& inFile,  int pick[], int drop[], int passCount[], double distance[], double fare[], double toll[], double costPMile[], int counter, double totalFare[]);
void WriteOutputFile(ofstream& outFile, int totalRecords, int people, int pick[], int drop[], int passCount[], double distance[], double fare[], double toll[], double costPMile[]);
void PrintTotalsAndSummary(ofstream& outFile, int totalRecords, int people, int passCount[], double distance[], double fare[], double toll[], double totalFare[], double costPMile[], double paid);


int main()
{
    // initialize all arrays and counters
    int pick[MAX];
    int drop[MAX];
    int passCount[MAX];
    double distance[MAX];
    double fare[MAX];
    double toll[MAX];
    double totalFare[MAX] = { 0 };
    double costPMile[MAX] = { 0 }; 
    int record_counter(0);
    int people(0);
    int counter = 0;
    double paid = 0;

    // initialize files
    string filename;
    ifstream inFile;
    ofstream outFile("out.txt");


    cout << "Please enter the input file name including extension: " << endl;
    cin >> filename;
    
    // open the requested file
    inFile.open(filename);

    if (inFile.is_open())
    {
        // read the data from the file, and output the total number of records (store into arrays)
        record_counter = ReadData(inFile, pick, drop, passCount, distance, fare, toll, costPMile, counter, totalFare);

        // close the read file
        inFile.close();

        if (outFile.is_open())
        {
            // write the new data to the output file
            WriteOutputFile(outFile, record_counter, people, pick, drop, passCount, distance, fare, toll, costPMile);
            // output the summary both to screen and to file
            PrintTotalsAndSummary(outFile, record_counter, people, passCount, distance, fare, toll, totalFare, costPMile, paid);
            outFile.close();
        }
        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 passCount[], double distance[], double fare[], double toll[], double costPMile[], int counter, double totalFare[])
{
    
    // print headers
    cout << setiosflags(ios::left) << setw(10) << "Trip" << setw(15)
        << "Pick" << setw(10) << "Drop" << setw(10)
        << "# ppl"
        << setw(10) << "Distance" << setw(10)
        << "Fare"
        << setw(10) << "Toll"
        << setw(10) << "Total"
        << setw(10) << "Cost per Mile" << endl;

    inFile >> pick[counter] >> drop[counter] >> passCount[counter] >> distance[counter] >> fare[counter] >> toll[counter]; // Priming Read
    // read all of the data into arrays
    while (!inFile.eof())
    {
        totalFare[counter] = fare[counter] + toll[counter];
        cout << setiosflags(ios::left) << setw(10) << counter << setw(15)
            << pick[counter]
            << setw(10) << drop[counter] << setw(10)
            << passCount[counter]
            << setw(10) << distance[counter] << setw(10)
            << fare[counter]
            << setw(10) << toll[counter] << setw(15)
            << totalFare[counter] << setw(10);
        // if distance is 0 then there is no cost per mile
        if (distance[counter] == 0) {
            costPMile[counter] = 0;
        }
        // cost per mile = (toll + fare) / distance 
        else {
            costPMile[counter] = (toll[counter] + fare[counter]) / distance[counter];
        }
        cout  << setprecision(3) << costPMile[counter];
        counter++;
        inFile >> pick[counter] >> drop[counter] >> passCount[counter] >> distance[counter] >> fare[counter] >> toll[counter];
        cout << endl;

    }

    return counter;
}
void WriteOutputFile(ofstream& outFile, int totalRecords, int people, int pick[], int drop[], int passCount[], double distance[], double fare[], double toll[], double costPMile[])
{

    // write the same data to the output files
    outFile << "   Here is the Output File" << endl;
    for (int r = 0; r < totalRecords; r++)
    {

        outFile << setiosflags(ios::left) << setw(15)
            << pick[r]
            << setw(15) << drop[r] << setw(15)
            << passCount[r]
            << setw(15) << distance[r] << setw(15)
            << fare[r]
            << setw(15) << toll[r]
            << setw(15) << costPMile[r] << endl;
    }

}
void PrintTotalsAndSummary(ofstream& outFile, int totalRecords, int people, int passCount[], double distance[], double fare[], double toll[], double totalFare[], double costPMile[], double paid)
{
    // do the calculations for all of the totals.
    for (int i = 0; i < totalRecords; i++) {
        people += passCount[i];
        double temp = fare[i] + toll[i];
        paid += temp;
        totalFare[i] = temp;

    }
    // print ot screen
    cout << "\n\n\t** Avg Cost Per Person: " << paid/people << " **\n"
        << "\n\n\t** People Transported: " << people << " **\n"
        << "\n\n\t** Total Cost: " << setprecision(5) << paid << " **\n"

        << "\t\t The End \n";
    // print to output file
    outFile << "\n\n\t** Avg Cost Per Person: " << paid/people << " **\n"
        << "\n\n\t** People Transported: " << people << " **\n"
        << "\n\n\t** Total Cost: " << paid << " **\n"
        << "\t\t The End \n";
}