#include <iostream>
#include <string>
#include <fstream>

using namespace std;

// readData returns theStream, aNAme, aBDay, and anAge
void readData(ifstream& theStream, string& aName, string& aBDay, int& anAge);

// findAges pass in an int array of ages and int numInArray -
// returns leastAgeIndex and greatestAgeIndex
void findAges(int agesArray[], int numInArray, int& leastAgeIndex, int& greatestAgeIndex);

//create method to output the persons with the least and greatest age

void outputData(string namesArray[], string bdayArray[], int ageArray[], int leastAgeindex, int greatesAgeIndex);

int main(){

    // open the input file
    ifstream inStream;
    inStream.open("c:\\inputfile.txt");

    //declare variables to read from input file and declare arrays
    string name;
    string namesArray[100];
    string bday;
    string bdayArray[100];
    int age;
    int ageArray[100];

    // declare a counter to help loop through the array and keep track of number of elements
    // initialize to 0 to start at first element of the array
    int counter = 0;

    // deaclare variable to keep track of the index in arrays for least and greatest age
    int leastAgeIndex;
    int greatestAgeIndex;


    while (! inStream.eof())
    {

       // call the readData Function - it returns name, age, bday
       readData(inStream,name,bday,age);

       // store name, age, bday in the correct element of the array
       namesArray[counter] = name;
       bdayArray[counter] = bday;
       ageArray[counter] = age;
      
        // increment counter
        counter = counter +1;
    }
    
    // close input stream - we are finish reading
    inStream.close();

    // call findAges - returns leastAgeIndex and greatestAgeIndex
    findAges(ageArray,counter, leastAgeIndex,greatestAgeIndex);


    //output - to check that it is correct
    //cout << leastAgeIndex <<" " << greatestAgeIndex<< endl;

    outputData(namesArray,bdayArray,ageArray,leastAgeIndex,greatestAgeIndex);
}

void readData(ifstream& theStream, string& aName, string& aBDay, int& anAge)
{

    theStream >>aName >>aBDay >>anAge;

    

}

void findAges(int agesArray[], int numInArray, int& leastAgeIndex, int& greatestAgeIndex)
{
    int lowestAge = 1000;
    int greatestAge = 0;

    for (int i = 0; i < numInArray; i=i+1)
    {

        if (agesArray[i] < lowestAge)
        {
            leastAgeIndex = i;
            lowestAge = agesArray[i];
        }
        if (agesArray[i] > greatestAge)
        {
            greatestAgeIndex = i;
            greatestAge = agesArray[i];
        }

    }

    

}

void outputData(string namesArray[], string bdayArray[], int ageArray[], int leastAgeIndex, int greatestAgeIndex)
{
  cout<<"The person with the least age is " << namesArray[leastAgeIndex]<<endl;
  cout<<"The person with the greatest age is " << namesArray[greatestAgeIndex]<<endl;
}