/*******************************************************************************
*                               Take Home Quiz                                 *
*                                                                              *
*                                                                              *
* @Author: Jared M. Cabrera                                                    *
* @Date: November 19, 2017                                                     *
********************************************************************************
*/


#include <iostream>
#include <iomanip>
#include <fstream>

using namespace std;


struct students{
    int studentID;
    string fName;
    string lName;
    float GPA;
    bool isEnrolled;
};

// Function Prototype
void loadArray(students []);
void printArray(students[], bool);
void SortbyGPA(students[], int size);

int main()
{
    const int SIZE = 7;
    students studs[SIZE];
    loadArray(studs);
    cout << "\n";
    cout << setw(5) << " " << "\t\tUNSORTED ARRAY." << endl;
    cout << endl;

    cout << showpoint << setprecision(3);

    // Call printArray here
    printArray(studs, false);

    cout << "\n";
    cout << setw(5) << " " << "\t\tSORTED BY GPA." << endl;
    cout << endl;

    // Call sortByGPA here
    SortbyGPA(studs, SIZE);

    // Call printArray here
    printArray(studs, false);

    cout << endl;

    /*// It might be beneficial to have this code inside printArray.
    cout << "\n\n";
    cout << setw(5) << " " << "\t\tSORTED BY GPA AND ENROLLED.";
    cout << endl << endl;
    cout << fixed << setprecision(2);
    cout << setw(13) << right << "Student ID" << setw(8) << "fName"
         << setw(13) << "lName" << setw(12) << "GPA" << setw(11)
         << "Enrolled" << endl;
    cout << setw(5) << " " << "-------------------------------------------"
            "------------" << endl;
    */

    // Print out those who are enrolled sorted by GPA here. No function needed
    cout << setw(5) << " " << "\t\tSORTED BY GPA AND ENROLLED.";
    cout << endl << endl;
    printArray(studs, true);
    return 0;
}

void loadArray(students arr[]){
    arr[0].studentID = 12345;
    arr[0].fName = "Joe";
    arr[0].lName = "Doe";
    arr[0].GPA = 3.34;
    arr[0].isEnrolled = 0;

    arr[1].studentID = 22145;
    arr[1].fName = "Donna";
    arr[1].lName = "Johnson";
    arr[1].GPA = 3.51;
    arr[1].isEnrolled = 1;

    arr[2].studentID = 44325;
    arr[2].fName = "Peter";
    arr[2].lName = "Pan";
    arr[2].GPA = 2.34;
    arr[2].isEnrolled = 1;

    arr[3].studentID = 23145;
    arr[3].fName = "Bernie";
    arr[3].lName = "Sanders";
    arr[3].GPA = 3.94;
    arr[3].isEnrolled = 1;

    arr[4].studentID = 72345;
    arr[4].fName = "Karen";
    arr[4].lName = "Thomas";
    arr[4].GPA = 3.55;
    arr[4].isEnrolled = 0;

    arr[5].studentID = 88345;
    arr[5].fName = "Irma";
    arr[5].lName = "Gonzalez";
    arr[5].GPA = 4.00;
    arr[5].isEnrolled = 1;

    arr[6].studentID = 12345;
    arr[6].fName = "Tony";
    arr[6].lName = "Hacker";
    arr[6].GPA = 3.11;
    arr[6].isEnrolled = 0;

}

void printArray(students arr[], bool enrollCheck){

    cout << setw(13) << right << "Student ID" << setw(8) << "fName"
    << setw(13) << "lName" << setw(12) << "GPA" << setw(11)
    << "Enrolled" << endl;
    cout << setw(5) << " " << "-------------------------------------------"
            "------------" << endl;

    for(int i = 0; i<7; i++){
        if (enrollCheck == true && arr[i].isEnrolled > 0){
        cout << setw(13) << right << arr[i].studentID << setw(8) << arr[i].fName
    << setw(13) << arr[i].lName << setw(12) << arr[i].GPA << setw(11)
    << arr[i].isEnrolled << endl;
        }
        else if (enrollCheck == false){
        cout << setw(13) << right << arr[i].studentID << setw(8) << arr[i].fName
    << setw(13) << arr[i].lName << setw(12) << arr[i].GPA << setw(11)
    << arr[i].isEnrolled << endl;
        }
    }
}

void SortbyGPA(students arr[], int size)
{
    bool madeSwap;

    do {
        madeSwap = false;
        for(int i = 0; i < (size-1); i++){
            if(arr[i].GPA < arr[i+1].GPA){
                swap (arr[i], arr[i+1]);
                madeSwap = true;
            }
        }

    }while(madeSwap);

}