//******************
//STUDENT.h
//**************
#ifndef _Student_HG_
#define _Student_HG_
#include <string>
#include <vector>

using std::string;

class Student
{
public:
    Student( const string &, const string &, const string & );//i should have an int and assign it to a vector instead of vector here?
    ~Student(); //Destructor
    void setFirstName( const string & );//set first name
    string getFirstName() const;

    void setLastName( const string & );
    string getLastName() const;

    void setStudentNumber( const string & );
    string getStudentNumber() const;

    string printGrades() ;
   
    struct Grade
    {
        string assignmentName;
        int assignmentGrade;
    };
    //void addGrade
    //vector <Grade> vecGrade;
    std::vector<Grade> vecGrade;


private:
    string firstName;
    string lastName;
    string studentNumber;
   


};
#endif

//*************
//Student.cpp
//**************

#include <iostream>
#include <sstream>
#include <string>
using namespace std;
#include "Student.h"

//, const int &grade

Student::Student( const string &first, const string &last, const string &snum )
: firstName( first ), lastName( last ), studentNumber( snum )
{
}

Student::~Student()
{
}

void Student::setFirstName( const string &first)
{
    firstName = first;
}

string Student::getFirstName() const
{
    return firstName;
}

void Student::setLastName( const string &last)
{
    lastName = last;
}

string Student::getLastName() const
{
    return lastName;
}

void Student::setStudentNumber(const string &snum)
{
    studentNumber = snum;
}

string Student::getStudentNumber() const
{
    return studentNumber;
}

string Student::printGrades()
{
    std::stringstream ss;
    string st;
    string s;
    for (vector<Grade>::iterator it = vecGrade.begin();
         it != vecGrade.end(); it++)
    {
        ss << (*it).assignmentGrade;
        ss >> st;
        s = (*it).assignmentName + " " + st + "\n";
        return s;
    }
}

//**************
//Main.cpp
//**********

#include <iostream>
#include <iomanip>
#include <vector>       
#include <string>
#include <sstream>
#include <fstream>
#include "Student.h"

using namespace std;




int enterChoice()
{
    cout << "\nEnter your choice" << endl
        << "1 - Add a student" << endl
        << "2 - Modify a student" << endl
        << "3 - Delete a student" << endl
        << "0 - Exit\n" << endl << endl << endl;
   
        int menuChoice;
        cin >> menuChoice;
        return menuChoice;
}

int enterModChoice()
{
    cout << "\nEnter your choice" << endl
        << "1 - Change student's first name" << endl
        << "2 - Change student's last name" << endl
        << "3 - Change student's student number" << endl
        << "4 - change students assignment/grades" << endl
        << "0 - Exit\n" << endl << endl << endl;
   
        int menuChoice;
        cin >> menuChoice;
        return menuChoice;
}



void printOut(vector<Student> &vecStud)
{
    cout << "Student" << setw(25) << "Grade" <<endl;
    for (vector<Student>::iterator it = vecStud.begin();
         it != vecStud.end(); it++)
    {
        cout << (*it).getFirstName() << " " <<
            (*it).getLastName() << " :" <<
                 endl;
    }

}


int main()
{
    //Load up the student data text file into vector
    vector < Student > vecStudent;
    ifstream myFile("studentData.txt");
    string fname;
    string lname;
    string    ssn;
    int numMarks;
    string assName;
    int assGrade;
   
    Student::Grade tempGrade;

    while (myFile >> fname >> lname >> ssn)
    {
    Student tempStu(fname,lname,ssn);
   
    while (myFile >> assName >> assGrade)
    {
        tempGrade.assignmentName = assName;
        tempGrade.assignmentGrade = assGrade;
        tempStu.vecGrade.push_back(tempGrade);
    }
    vecStudent.push_back(tempStu);
    }

    start:
    printOut(vecStudent);


    int choice;
    int choice2;
    int c;
    string result;
    while ( ( choice = enterChoice() ) != 0)
    {
       
        switch ( choice )
        {
        case 1:
            {//add a student
           
            cout << endl << endl << endl;
            cout << "Adding student...." << endl << endl << endl;
            cout << "What is the student's first name?   : ";
            cin >> fname;
            cout << endl << "What is the student's last name?   : ";
            cin >> lname;
            cout << endl << "What is the student's student number?  : ";
            cin >> ssn;

            Student tempStu(fname,lname,ssn);

            cout << endl << "How many assignments do you want to enter /w marks?" << endl;
            cin >> c;
            for (int x=0; x < c; x++)
            {

                cout << endl << "What's the assignment's title?" << endl;
                cin >> assName;
                tempGrade.assignmentName = assName;
                cout << endl << "What's the assignment's grade?" << endl;
                cin >> assGrade;
                tempGrade.assignmentGrade = assGrade;
                tempStu.vecGrade.push_back(tempGrade);

            }
           

            vecStudent.push_back(tempStu);

            //How many assignments/grades do you want to put in?
            //loop inputting grades into Student grade vector

            printOut(vecStudent);
            break;
            }
        case 2:
            {
            //modify and student
            cout << "Modifing a student......" << endl << endl << endl;
            cout << "What is the student's student number\n who you want to modify?" << endl << endl;
            cin >> ssn;
           
            //search for student
            for (vector<Student>::iterator it = vecStudent.begin();
         it != vecStudent.end(); it++)
            {
                //THIS DOESNT WORK*******
                if ((*it).getStudentNumber == ssn)
                {
                    cout << "Student found......" << endl;
                   
                //display menu for changing a student's stats
                while ( ( choice2 = enterModChoice() ) != 0)
                {
                    switch ( choice2 )
                    {
                    case 1:
                        //set/change students first name
                        cout << "Enter student's new first name: ";
                        cin >> result;
                        (*it).setFirstName( result );
                        break;
                    case 2:
                        //set/change student's last name
                        cout << "Enter student's new last name: ";
                        cin >> result;
                        (*it).setLastName( result );
                        break;
                    case 3:
                        //set/change student's student number
                        cout << "Enter student's new student number: ";
                        cin >> result;
                        (*it).setStudentNumber( result );
                        break;
                    case 4:
                        //print off assignment list (vector of struct Grade's inside Student) w/grades
                        cout << (*it).printGrades();
                        //Bring up another menu for what assignment to change
                       
                        cout << "\nEnter your choice" << endl
                        << "1 - Modify Grade Name/Mark" << endl
                        << "0 - Exit\n" << endl << endl << endl;
                        int cc;
                        cin >> cc;

                        if (cc=0)
                            break;
                        else
                        {
                            cout << "which assignment do you want to change? (1-10);" << endl;
                            cin >> cc;

                            cout << endl <<  "What do you want the new assignment name to be? :";
                            cin >> assName;
                            cout << endl << "what do you want the new assignment grade to be? :";
                            cin >> assGrade;
                           
                            vector<Student::Grade>::iterator itv = (*it).vecGrade.begin();
                            itv += cc;
                           
                            (*itv).assignmentName = assName;
                            (*itv).assignmentGrade = assGrade;
                            cout << (*it).printGrades();
                                break;
                        }



                        //enter assignemnt # 1-10
                        // change 1: name or 2: grade
                        // if
                        break;
                    case 0:
                       
                        break;
                    default:
                        cout << "You entered a wrong number" << endl;
                        goto start;
                        break;
                    }
                }
                }

               
                else
                {
                    cout << "Sorry, either the number was incorrectly inputted"
                        << "\n or the student does not exist." << endl;
                        goto start;
                }

            }
            break;
            }
        case 3:
            {
            //delete a student
            cout << "Deleting a student......" << endl << endl << endl;
            cout << "What is the student's student number\n who you want to delete?" << endl << endl;
            cin >> ssn;
           
            for (vector<Student>::iterator it = vecStudent.begin();
                 it != vecStudent.end(); it++)
            {
                //THIS DOESNT WORK, how do i compare the strings properly?
                if ( ((*it).getStudentNumber) == ssn)
                {
                    cout << "Sorry, either the number was incorrectly inputted"
                        << "\n or the student does not exist." << endl;
                }
                else
                {
                    cout << "Student found......" << endl;
                    cout << "Deleting...." << endl;
                   
                    //DOESNT WORK, i guess i have to delete it from the vector somehow aswell?
                    delete (*it);
                }
            }
            break;
            }
        case 0:
            {
            //exit


            //save Student vector to file, outputting everything
               
                fstream myFile("studentData.txt",ios::out);
                myFile.trunc;
           
                for (vector<Student>::iterator it = vecStudent.begin();
         it != vecStudent.end(); it++)
                {
               
                    myFile << (*it).getFirstName() << " " <<
            (*it).getLastName() << " " << (*it).getStudentNumber() << endl;
                //print out grades
                myFile << (*it).printGrades() << endl;
               
                }
                myFile.close();

                return 0;
            }
        default:
            {//error msg,
            cout << "You have put in an incorrect choice" << endl;
            goto start;
            }
            break;
        }

    }


   


    return 0;
}

//***********
//student.h
 
#ifndef _Student_HG_
#define _Student_HG_
#include<string>
#include<vector>
using std::string;
class Student 
{
public:
Student( const string &, const string &, const string & );//i should have an int and assign it to a vector instead of vector here?
~Student(); //Destructor
void setFirstName( const string & );//set first name
string getFirstName() const;
void setLastName( const string & );
string getLastName() const;
void setStudentNumber( const string & );
string getStudentNumber() const;
string printGrades() ;
 
struct Grade
{
string assignmentName;
int assignmentGrade;
};
//void addGrade
//vector <Grade> vecGrade;
std::vector<Grade> vecGrade;
 
private:
string firstName;
string lastName;
string studentNumber;
 
 
};
#endif

//*************
//Student.cpp
//*************
#include<iostream>
#include<sstream>
#include<string>
usingnamespace std;
#include"Student.h"
//, const int &grade
Student::Student( const string &first, const string &last, const string &snum )
: firstName( first ), lastName( last ), studentNumber( snum )
{
}
Student::~Student()
{
}
void Student::setFirstName( const string &first)
{
firstName = first;
}
string Student::getFirstName() const
{
return firstName;
}
void Student::setLastName( const string &last)
{
lastName = last;
}
string Student::getLastName() const
{
return lastName;
}
void Student::setStudentNumber(const string &snum)
{
studentNumber = snum;
}
string Student::getStudentNumber() const
{
return studentNumber;
}
string Student::printGrades()
{
std::stringstream ss;
string st;
string s;
for (vector<Grade>::iterator it = vecGrade.begin();
it != vecGrade.end(); it++)
{
ss << (*it).assignmentGrade;
ss >> st;
s = (*it).assignmentName + " " + st + "\n";
return s;
}

//*************************
//main.cpp
//**************************
#include<iostream>
#include<iomanip>
#include<vector>
#include<string>
#include<sstream>
#include<fstream>
#include"Student.h"
usingnamespace std;
 
 
 
int enterChoice()
{
cout << "\nEnter your choice" << endl
<< "1 - Add a student" << endl
<< "2 - Modify a student" << endl
<< "3 - Delete a student" << endl
<< "0 - Exit\n" << endl << endl << endl;
 
int menuChoice;
cin >> menuChoice;
return menuChoice;
}
int enterModChoice()
{
cout << "\nEnter your choice" << endl
<< "1 - Change student's first name" << endl
<< "2 - Change student's last name" << endl
<< "3 - Change student's student number" << endl
<< "4 - change students assignment/grades" << endl
<< "0 - Exit\n" << endl << endl << endl;
 
int menuChoice;
cin >> menuChoice;
return menuChoice;
}
 
 
void printOut(vector<Student> &vecStud)
{
cout << "Student" << setw(25) << "Grade" <<endl;
for (vector<Student>::iterator it = vecStud.begin();
it != vecStud.end(); it++)
{
cout << (*it).getFirstName() << " " <<
(*it).getLastName() << " :" <<
endl;
}
}
 
int main()
{
//Load up the student data text file into vector
vector < Student > vecStudent;
ifstream myFile("studentData.txt");
string fname;
string lname;
string ssn;
int numMarks;
string assName;
int assGrade;
 
Student::Grade tempGrade;
while (myFile >> fname >> lname >> ssn)
{
Student tempStu(fname,lname,ssn);
 
while (myFile >> assName >> assGrade)
{
tempGrade.assignmentName = assName;
tempGrade.assignmentGrade = assGrade;
tempStu.vecGrade.push_back(tempGrade);
}
vecStudent.push_back(tempStu);
}
start:
printOut(vecStudent);
 
int choice;
int choice2;
int c;
string result;
while ( ( choice = enterChoice() ) != 0)
{
 
switch ( choice )
{
case 1:
{//add a student

cout << endl << endl << endl;
cout << "Adding student...." << endl << endl << endl;
cout << "What is the student's first name? : ";
cin >> fname;
cout << endl << "What is the student's last name? : ";
cin >> lname;
cout << endl << "What is the student's student number? : ";
cin >> ssn;
Student tempStu(fname,lname,ssn);
cout << endl << "How many assignments do you want to enter /w marks?" << endl;
cin >> c;
for (int x=0; x < c; x++)
{
cout << endl << "What's the assignment's title?" << endl;
cin >> assName;
tempGrade.assignmentName = assName;
cout << endl << "What's the assignment's grade?" << endl;
cin >> assGrade;
tempGrade.assignmentGrade = assGrade;
tempStu.vecGrade.push_back(tempGrade);
}
 
vecStudent.push_back(tempStu);
//How many assignments/grades do you want to put in?
//loop inputting grades into Student grade vector
printOut(vecStudent);
break;
}
case 2:
{
//modify and student
cout << "Modifing a student......" << endl << endl << endl;
cout << "What is the student's student number\n who you want to modify?" << endl << endl;
cin >> ssn;
 
//search for student
for (vector<Student>::iterator it = vecStudent.begin();
it != vecStudent.end(); it++)
{
//THIS DOESNT WORK*******
if ((*it).getStudentNumber() == ssn)
{
cout << "Student found......" << endl;
 
//display menu for changing a student's stats
while ( ( choice2 = enterModChoice() ) != 0)
{
switch ( choice2 )
{
case 1:
//set/change students first name
cout << "Enter student's new first name: ";
cin >> result;
(*it).setFirstName( result );
break;
case 2:
//set/change student's last name
cout << "Enter student's new last name: ";
cin >> result;
(*it).setLastName( result );
break;
case 3:
//set/change student's student number
cout << "Enter student's new student number: ";
cin >> result;
(*it).setStudentNumber( result );
break;
case 4:
//print off assignment list (vector of struct Grade's inside Student) w/grades
cout << (*it).printGrades();
//Bring up another menu for what assignment to change

cout << "\nEnter your choice" << endl
<< "1 - Modify Grade Name/Mark" << endl
<< "0 - Exit\n" << endl << endl << endl;
int cc;
cin >> cc;
if (cc=0)
break;
else
{
cout << "which assignment do you want to change? (1-10);" << endl;
cin >> cc;
cout << endl << "What do you want the new assignment name to be? :";
cin >> assName;
cout << endl << "what do you want the new assignment grade to be? :";
cin >> assGrade;
 
vector<Student::Grade>::iterator itv = (*it).vecGrade.begin();
itv += cc;
 
(*itv).assignmentName = assName;
(*itv).assignmentGrade = assGrade;
cout << (*it).printGrades();
break;
}
 
 
//enter assignemnt # 1-10
// change 1: name or 2: grade
// if 
break;
case 0:
 
break;
default:
cout << "You entered a wrong number" << endl;
goto start;
break;
}
}
}
 
else
{
cout << "Sorry, either the number was incorrectly inputted"
<< "\n or the student does not exist." << endl;
goto start;
}
}
break;
}
case 3:
{
//delete a student
cout << "Deleting a student......" << endl << endl << endl;
cout << "What is the student's student number\n who you want to delete?" << endl << endl;
cin >> ssn;
 
for (vector<Student>::iterator it = vecStudent.begin();
it != vecStudent.end(); it++)
{
//THIS DOESNT WORK, how do i compare the strings properly?
if ( (*it).getStudentNumber() == ssn)
{
cout << "Sorry, either the number was incorrectly inputted"
<< "\n or the student does not exist." << endl;
}
else
{
cout << "Student found......" << endl;
cout << "Deleting...." << endl;
 
//DOESNT WORK, i guess i have to delete it from the vector somehow aswell?
vecStudent.erase(it, it+1);
//delete (*it);
}
}
break;
}
case 0:
{
//exit

//save Student vector to file, outputting everything

fstream myFile("studentData.txt",ios::out);
myFile.trunc;
 
for (vector<Student>::iterator it = vecStudent.begin();
it != vecStudent.end(); it++)
{
 
myFile << (*it).getFirstName() << " " <<
(*it).getLastName() << " " << (*it).getStudentNumber() << endl;
//print out grades
myFile << (*it).printGrades() << endl;
 
}
myFile.close();
return 0;
}
default:
{//error msg, 
cout << "You have put in an incorrect choice" << endl;
goto start;
}
break;
}
}
 
 
 
return 0;
}
 
 
 
}