// File:Student.cpp
// Student Class Definition

#include "Student.h"
#include <iostream.h>
#include <string.h> // Need for strcpy
#include <ctype.h>  // Need for toupper
#include <iomanip.h>// Need for setw in cout


 // Default Constructor folded into one arg constr using default args (see .h)
/* Student::Student()
 {strcpy(Name,"");
  Hours=Points=0;
 }
*/
 // Constructor with argument
 Student::Student(char StudentName[],int hours,int points)
 {strcpy(Name,StudentName);
  Hours=hours;
  Points=points;
 }

 // Initialize Name of Student
 void Student::SetName(char StudentName[])
 {strcpy(Name,StudentName);}

 // Update the class with a class record (#Hours,Grade in class 0..4)
 // void Student::AddClass(int CourseHours,char Grade)
 Student Student::operator+=(CourseData Info)
 {Hours+=Info.Hours;
  if (Info.Grade!='F')
   Points+=('E'-toupper(Info.Grade))*Info.Hours;
  return(*this);
 }

 // Change a Grade (#Hours, Previous Grade, New Grade)
 void Student::ChangeGrade(int CourseHours,char OldGrade,char NewGrade)
 {Points+=(toupper(OldGrade)-toupper(NewGrade))*CourseHours;}

 // Remove a class from student's record (Hours, Grade)
 // void Student::RemoveClass(int CourseHours,char Grade)
 Student Student::operator-=(CourseData Info)
 {Hours-=Info.Hours;
  if (Info.Grade!='F')
   Points-=('E'-toupper(Info.Grade))*Info.Hours;
  return(*this);
 }

 // Get Hours Completed
 int Student::HoursCompleted() const
 {return(Hours);}

 bool operator<(Student S1,Student S2)
 {return(strcmp(S1.Name,S2.Name)<0);}
	
 bool operator>(Student S1,Student S2)
 {return(strcmp(S1.Name,S2.Name)>0);}

 bool operator==(Student S1,Student S2)
 {return(!strcmp(S1.Name,S2.Name));}

 bool operator<<=(Student S1,Student S2)
 {return(S1.ComputeGPA()<S2.ComputeGPA());}

 bool operator>>=(Student S1,Student S2)
 {return(S1.ComputeGPA()>S2.ComputeGPA());}


 // Print Student Info
 //void Student::PrintStudentInfo()
 ostream &operator<<(ostream &Dest,Student S)
 {Dest << "\nStudent Name        Hours      GPA\n";
  Dest.setf(ios::showpoint);
  Dest.precision(2);
  Dest <<  setiosflags(ios::left) << setw(20) << S.Name << resetiosflags(ios::left);
  Dest.setf(ios::right);
  Dest << setw(4) << S.Hours << setw(10) << S.ComputeGPA() << endl;
  return(Dest);
 }

 // Get Student's GPA
 float Student::ComputeGPA() const
 {if (Hours>0)
   return(float(Points)/Hours);
  return(0);
 }