#include "student.h"

Student::Student()
{
	strcpy(last_name, "");
	strcpy(first_name, "");
	strcpy(key, "");
	gpa = 0.0;
}

Student::Student(char* s_last, char* s_first, double s_gpa, char* s_key)
{
	strcpy(last_name, s_last);
	strcpy(first_name, s_first);
	strcpy(key, s_key);
	gpa = s_gpa;
	
}

Student::Student(char* s_last, char* s_first )
{
	strcpy(last_name, s_last);
	strcpy(first_name, s_first);
	gpa = 0.0;
}

void Student::set_last_name(char* s_last)
{
	strcpy(last_name, s_last);
}

void Student::set_first_name(char* s_first)
{
	strcpy(first_name, s_first);
}

void Student::set_gpa(double s_gpa)
{
	gpa = s_gpa;
}

void Student::set_key(char *k)
{
	strcpy(key, k);
}

double Student::get_gpa()
{
	return gpa;
}

char* Student::get_last_name()
{
	return last_name;
}

char* Student::get_first_name()
{
	return first_name;
}

char* Student::get_key()
{
	return key;
}

//returns the length of the student' last name
int Student::get_last_length()
{
	return strlen(last_name);
}

//returns the length of the student' first name
int Student::get_first_length()
{
	return strlen(first_name);
}

//cout operator overloading
ostream &operator << (ostream&, const Student &s)
{
	cout << "Student ID number: " << s.key << endl;
	cout << endl << s.last_name << ", " << s.first_name;

	
	if(s.gpa == 0.0)
		cout << " GPA is not available for this student.\n";
	else
		cout << "\tGPA: " << s.gpa << endl;
	
	return cout;
}

//= operator overloading
void Student::operator= (Student &s)
{
	strcpy(last_name, s.last_name);
	strcpy(first_name, s.first_name);
	strcpy(key, s.key);
	gpa = s.gpa;
	
}

//== operator overloading
int Student::operator == (Student &s)
{
	if(strcmp(key, s.key) == 0)
		return 1;	
	return 0;
}