// CST 116 - Andrei Florea - Lab 3
// Take in a file input with data and display statistics about the file

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

using namespace std;

using std::cout;
using std::cin; 
using std::endl;
using std::setprecision;
using std::fixed;

void getFileName(string&);
void readData(fstream&, int[], int[], int[], int[], float[], float[], float[], float[], float[]);
void displayData(int[], int[], int[], int[], float[], float[], float[], float[], float[], int);


int main()
{
    // Create and initiate most variables, this is where the main function of code runs
    int pick_up_loc[50];
    int drop_off_loc[50];
    int pass_count[50];
    int trip[50];
    float distance[50];
    float fare_amount[50];
    float toll_amount[50];
    float total[50];
    float cost_mi[50];
    string file_name;
    getFileName(file_name);
    
    fstream data_file;
    data_file.open(file_name);

    if (data_file.is_open())
    {
        readData(data_file, pick_up_loc, drop_off_loc, pass_count, trip, distance, fare_amount, toll_amount, total, cost_mi);
    }
    else if (!(data_file.is_open()))
    {
        cout << "Trouble opening " << file_name << "." << endl;
    }

}

void getFileName(string& name)
{
    // Ask user for file name, store it in name
    cout << "Enter the name of the file including extension: " << endl;
    cin >> name;
}

void readData(fstream& file, int pick[], int drop[], int passenger[], int trip[], float distance[], float fare[], float toll[], float total[], float cost_mi[])
{
    // Take in each line of data and store it in the correct slot for each array
    int counter = 0;
    file >> pick[counter] >> drop[counter] >> passenger[counter] >> distance[counter] >> fare[counter] >> toll[counter];
    total[counter] = fare[counter] + toll[counter];

    trip[counter] = counter + 1;

    if (distance[counter] == 0)
    {
        cost_mi[counter] = 0;
    }
    else cost_mi[counter] = fare[counter] / distance[counter];

    while( !file.eof() ) 
    {
        counter++;
        file >> pick[counter] >> drop[counter] >> passenger[counter] >> distance[counter] >> fare[counter] >> toll[counter];

        trip[counter] = counter + 1;

        total[counter] = fare[counter] + toll[counter];
        if (distance[counter] == 0)
        {
            cost_mi[counter] = 0;
        }
        else cost_mi[counter] = fare[counter] / distance[counter];

    }

    file.close();

    displayData(trip, pick, drop, passenger, distance, fare, toll, total, cost_mi, counter);
}   

void displayData(int trip[], int pick[], int drop[], int passenger[], float distance[], float fare[], float toll[], float total[], float cost_mi[], int counter)
{
    // Using the arrays, display the data
    int total_people = 0;
    float total_cost = 0;

    int width = 15;
    cout << setw(width) << "Trip #" << setw(width) << "Pick Up" << setw(width) << "Drop off" << setw(width) << "# of ppl";
    cout << setw(width) << "Distance" << setw(width) << "Fare" << setw(width) << "Toll";
    cout << setw(width) << "Total" << setw(width) << "Cost/Mile" << setw(width) << endl;

    for (int idx = 0; idx <= counter; idx++)
    {   
        cout << setw(width) << trip[idx] << setw(width) << pick[idx] << setw(width) << drop[idx];
        cout << setprecision(2) << fixed << setw(width) << passenger[idx] << setw(width) << distance[idx] << setw(width) << fare[idx];
        cout << setw(width) << toll[idx] << setw(width) << total[idx] << setw(width) << cost_mi[idx] << endl;

        total_people = total_people + passenger[idx];
        total_cost = total_cost + fare[idx] + toll[idx];
        
    }

    cout << setw(width) << "People transported: " << total_people << endl;
    cout << setw(width) << "Total paid: " << total_cost << endl;
    cout << setw(width) << "Average cost per person: " << total_cost / total_people << endl;

}