#include "course.h"

using namespace std; 

//default constructor
Course::Course(){
	cout << "Course() " << endl;
	this->name = "CS162";
	this->roster = nullptr;
	this->enroll = 0;
	this->ins = "Roger";
}

//non-default constructor
Course::Course(string new_n, int new_e, string new_i){
	cout << "non defaut Course(string, int, string) " << endl;
	this->name = new_n;
	this->enroll = new_e;
	this->roster = new string[this->enroll];
	for (int i = 0; i < this->enroll; i++)
		this->roster[i] = "Some student";
	this->ins = new_i;
}

//destructor
Course::~Course(){
	cout << "~Course()" << endl;
	if (this->roster != nullptr){
		delete [] this->roster;
		this->roster = nullptr; 
	}
}

//AOO
Course& Course::operator=(const Course& obj){
	cout << "AOO is called" << endl;

	//shallow copy 
	this->name = obj.name; 
	this->enroll = obj.enroll;
	this->ins = obj.ins;

	//this->roster = obj.roster; //we don't want

	//deep copy 
	if (this->roster != nullptr)
		delete [] roster;

	this->roster = new string [this->enroll];
	for (int i = 0; i < this->enroll; ++i)
	{
		this->roster[i] = obj.roster[i];
	}

	return *this;

}

//Copy Constructor 
Course::Course(const Course& obj){
	cout << "CC called " << endl;
	//shallow copy 
	this->name = obj.name; 
	this->enroll = obj.enroll;
	this->ins = obj.ins;

	//this->roster = obj.roster; //we don't want

	//deep copy 
	this->roster = new string [this->enroll];
	for (int i = 0; i < this->enroll; ++i)
	{
		this->roster[i] = obj.roster[i];
	}
}

//getters
string Course::get_name()const {return this->name;}
int Course::get_enroll()const {return this->enroll;}
string Course::get_ins() const{return this->ins;}
string* Course::get_roster()const {return this->roster;}

//setters
void Course::set_name(const string n){
	this->name = n;
}

void Course::set_roster(string* r) {
	this->roster = r;
}

void Course::set_enroll (const int e){
	this->enroll = e;
}

void Course::set_ins (const string i) {
	this->ins = i;
}


void Course::display() const {
	cout << "--------------------" << endl;
	cout << "Name: " << this->name << endl;
	cout << "Enroll: " <<  this->enroll << endl;
	cout << "Instructor: " << this->ins << endl;
	for (int i = 0; i < enroll; ++i)
	{
		cout << "Student " << i+1 << ": " ;
		cout << this->roster[i] << endl;
	}

	cout << "--------------------" << endl;
}