//

#include "stdafx.h"
#include <string>
#include <iostream>
#include <vector>
using namespace std;

class Loan
{
private:
	string ID;
	double Notional;
	double APR;
	double rank;
public:
	friend double combinedNotional(Loan const &l1, Loan const & l2);
	Loan(string id, double Notion, double apr, double r)
	{
		ID = id;
		Notional = Notion;
		APR = apr;
		rank = r;
	}
	string GetID() const
	{
		return ID;
	}
	double GetNotional() const
	{
		return Notional;
	}
	double GetAPR() const
	{
		return APR;
	}
	double GetRank() const
	{
		return rank;
	}
	string combined(Loan const& l1)
	{
		return this->GetID() + l1.GetID();
	}

};

bool operator<(Loan const & l1, Loan const & l2)
{
	return l1.GetNotional()*l1.GetRank() > l2.GetNotional()*l2.GetRank();
}

Loan operator+(Loan const & l1, Loan const & l2)
{
	Loan new_loan(l1.GetID() + l2.GetID(), l1.GetNotional() + l2.GetNotional(),
		(l1.GetNotional()*l1.GetAPR() + l2.GetNotional()*l2.GetAPR()) / (l1.GetNotional() + l2.GetNotional()),
		(l1.GetNotional()*l1.GetRank() + l2.GetNotional()*l2.GetRank()) / (l1.GetNotional() + l2.GetNotional()));
	return new_loan;
}

double combinedNotional(Loan const &l1, Loan const & l2)
{
	return l1.Notional + l2.Notional;
}

int main()
{
	Loan l1("MyFirstLoan", 1000, 0.05, 0.01);
	Loan l2("MySecondLoan", 2000, 0.05, 0.00001);
	cout << "The notional of the loan is " << l1.GetNotional() << endl;
	
	cout << "If loan 1 is less than loan 2 " << (l1 < l2) << endl;

	cout << "Merged loan is " << (l1 + l2).GetNotional() << endl;

	cout << "The combined is " << l1.combined(l2) << endl;

	system("pause");
    return 0;
}