// student6a.cc
#include <iostream>
#include <string>
using namespace std;

class Student
{
  private:
    string Name;
    bool Auditor;
    double *Grades;
    
  public:
    // Constructor
    Student(string theName, bool isAuditor = false)
           :Name(theName), Auditor(isAuditor)
    {
      Grades = new double[3];
      for (int i=0; i<3; i++) Grades[i] = 0.0;
    }
    // Copy constructor
    Student(const Student& Source) 
    {
      cout << "In copy constructor!" << endl;
      Name = Source.Name;
      Auditor = Source.Auditor;
      Grades = new double[3];
      for (int i=0; i<3; i++) Grades[i] = Source.Grades[i];
    }
    // Move constructor
    Student(Student&& Source)
    {
      cout << "In move constructor!" << endl;
      Name = Source.Name;
      Auditor = Source.Auditor;
      Grades = Source.Grades;
    }
    // Destructor
    ~Student()
    {
      delete [] Grades; // delete the dynamically allocated array
    } 
    void SetGrade(int whichGrade, double grade)
    {
      Grades[whichGrade] = grade;
    }
    void PrintGrades(void) {
      if (Auditor) cout << "Auditor ";
      else cout << "Student ";
      cout << Name << " grades: ";
      cout << Grades[0] << "," << Grades[1] << "," << Grades[2] << endl;
    }
    void PrintCourseGrade(void)
    {
      if (Auditor) cout << "Auditor ";
      else cout << "Student ";
      cout << Name << " has course grade ";
      cout << (Grades[0] + Grades[1] + Grades[2]) / 3.0 << endl;
    }
}; // done defining and declaring Student class

// Now safe thanks to copy constructor with deep copy
void PrintStudentGrades(Student Input)
{
  Input.PrintGrades();
  Input.PrintCourseGrade();
}

// If the student were to finish the rest of the semester with
// perfect grades, what would their record look like?
Student StudentFinishPerfectly(Student& Source, int nextGrade)
{
  
  cout << "About to create copy to work on" << endl;
  Student NewStudent(Source);
  cout << "Modifying grades in copy" << endl;

  for (int i=nextGrade; i<3; i++) {
    NewStudent.SetGrade(i, 100.0);
  }

  cout << "About to return modified object" << endl;
  return NewStudent;
}

int main()
{
  Student Student1("John Smith"); // no 2nd argument given, assumes default
  Student1.SetGrade(0, 80.0);
  cout << "About to print initial grades by passing object" << endl;
  PrintStudentGrades(Student1);
  cout << "If perfect grades for rest of semester, ..." << endl;
  PrintStudentGrades(StudentFinishPerfectly(Student1, 1));
}