#include <iostream>
#include <string>
#include <vector>
using std::cout;
using std::endl;
using std::string;
//using namespace std;

class Customer
{
private:
	string firstname;
	string lastname;
	int id;

	friend bool operator<(int i, Customer const& c);


public:
	Customer(string first, string last, int ID);//constructor
	~Customer(); //destructor
	string getName();
	int getID() const{ return id; };
	void SetName(string first, string second);
	bool operator<(Customer const& c) const;
	bool operator<(int i) const;
};


bool operator<(int i, Customer const& c);


Customer::Customer(string first, string last, int ID)
{
	//cout << "Constructing the object with id " << ID << endl;

	firstname = first;
	lastname = last;
	id = ID;
}


Customer::~Customer()
{
	//cout << "Destructing the object with id " << id << endl;
}


string Customer::getName() { return firstname + " " + lastname; }
void Customer::SetName(string first, string last)
{
	firstname = first;
	lastname = last;
}


bool Customer::operator<(Customer const& c) const
{
	return id < c.getID();
}

bool Customer::operator<(int i) const
{
	return id < i;
}



bool operator<(int i, Customer const& c)
{
	return	i < c.id;
}


class Account : public Customer
{
private:
	string acctype;
public:
	Account(string first, string last, int ID, string tp) : Customer(first, last, ID), acctype(tp)
	{
		cout << "Constructing Bank Account of type " << acctype << endl;
	}
	~Account()
	{
		cout << "Distructing Bank Account of type " << acctype << endl;
	}

};

template<class T>
T max(T const& t1, T const& t2)
{
	return t1 < t2 ? t2 : t1;
}



template<class T>
class Latest
{
private:
	T latest;
public:
	Latest(T const& start):latest(start) {};
	void add(T const& t)
	{	
		latest = max(latest, t);

	}
	T GetLatest()
	{
		return latest;
	}

};


template<>
class Latest <Customer>
{
private:
	int latest;
public:
	Latest(int const& start) :latest(start) {};
	void add(Customer const& t)
	{
		latest = max(latest, t.getID());

	}
	int GetLatest()
	{
		return latest;
	}

};

int main()
{
	//References
	int a = 3;

	cout << "Variable a is equal to " << a << endl;
	
	int& rA = a;

	rA = 5;

	cout << "Variable a is equal to " << a << endl;

	Customer c1("Kate", "Brown", 1);
	
	Customer & rC = c1;


	cout << "The name of the customer is " << rC.getName() << endl;

	//int & rB; References can not point to nowhere

	//Pointers

	int* pA = &a;
	
	*pA = 4;
	
	cout << "Variable a is equal to " << a << endl;

	int b = 10;
	pA = &b;
	(*pA)++;

	cout << "Variable b is equal to " << *pA << endl;

	Customer c2("James", "Bond", 7);

	Customer* pC = &c2;

	cout << "Customer's name is " << (*pC).getName() << endl;
	cout << "Customer's name is " << pC->getName() << endl;

	//int* pB = nullptr;
	//*pB = 3;
	//cout << "The pointed number is " << *pB << endl;
	return 0;
}