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#include <string>
#include <iostream>
#include <iomanip>
#include <fstream>
#include <sstream>
#include <map>
class Stock {
public:
Stock();
Stock(int c, const std::string& n, double v, int nu);
Stock& setCode(int c);
Stock& setName(const std::string& n);
Stock& setValuePerUnit(double v);
Stock& setNumberUnits(int n);
int getCode() const;
std::string getName() const;
double getValuePerUnit() const;
int getnumberUnits() const;
void input();
double calcAmount() const;
std::string toString() const;
bool operator==(const Stock& second) const;
bool operator!=(const Stock& second) const;
bool operator<(const Stock& second) const;
bool operator>(const Stock& second) const;
friend std::istream& operator >> (std::istream& in, Stock& s);
private:
int code {};
std::string name;
double valuePerUnit {1};
int numberUnits {1};
};
Stock::Stock() { }
Stock::Stock(int c, const std::string& n, double v, int nu) : code(c), name(n), valuePerUnit(v), numberUnits(nu) {}
Stock& Stock::setCode(int c)
{
code = c;
return *this;
}
Stock& Stock::setName(const std::string& n)
{
name = n;
return *this;
}
Stock& Stock::setValuePerUnit(double v)
{
valuePerUnit = v;
return *this;
}
Stock& Stock::setNumberUnits(int n)
{
numberUnits = n;
return *this;
}
int Stock::getCode() const
{
return code;
}
std::string Stock::getName() const
{
return name;
}
double Stock::getValuePerUnit() const
{
return valuePerUnit;;
}
int Stock::getnumberUnits() const
{
return numberUnits;;
}
void Stock::input()
{
std::cout << "\nEnter code : ";
std::cin >> code;
std::cout << "Enter name : ";
std::cin >> name;
std::cout << "Enter value per unit : ";
std::cin >> valuePerUnit;
std::cout << "Enter number of units : ";
std::cin >> numberUnits;
}
double Stock::calcAmount() const
{
return getnumberUnits() * getValuePerUnit();
}
std::ostream& operator << (std::ostream& out, const Stock& s)
{
out << "\nCode : " << s.getCode();
out << "\nName : " << s.getName();
out << "\nNumber Of Units : " << s.getnumberUnits();
out << "\nCost of Unit : " << s.getValuePerUnit();
out << "\nTotal : " << s.calcAmount() << std::endl;
return out;
}
std::istream& operator >> (std::istream& in, Stock& s)
{
std::cout << "\nEnter Stock Code ";
in >> s.code;
std::cout << "Enter Stock Name ";
in >> s.name;
std::cout << "Enter value per Unit : ";
in >> s.valuePerUnit;
std::cout << "Enter Number of Units : ";
in >> s.numberUnits;
return in;
}
std::string Stock::toString() const
{
std::ostringstream os;
os.width(4);
os << "Stock Code: " << code;
os.width(4);
os << " Stock Name: " << name;
os.width(4);
os << " Value Per Unit: " << valuePerUnit;
os.width(4);
os << " Number Unit: " << numberUnits;
return os.str();
}
bool Stock::operator==(const Stock& second)const
{
return code <= second.code;
}
bool Stock::operator!=(const Stock& second) const
{
return !(*this == second);
}
bool Stock::operator<(const Stock& second) const
{
return code < second.code;
}
bool Stock::operator>(const Stock& second) const
{
return !(*this < second);
}
class Invoice {
public:
Invoice() {}
Invoice(int _numberInvoice, int _dateIssue, const std::map<Stock, double>& _goods);
int getNumberInvoice() const;
int getDateIssue() const;
std::map<Stock, double> getGoods() const;
void setNumberInvoice(int _numbInvoice);
void setDateIssue(int _dIssue);
void setGoods(const std::map<Stock, double>& _goods);
void addGood(const Stock& s, double num);
void display() const;
private:
int numberInvoice {};
int dateIssue {};
std::map<Stock, double> goods;
};
Invoice::Invoice(int _numberInvoice, int _dateIssue, const std::map<Stock, double>& _goods) : numberInvoice(_numberInvoice), dateIssue(_dateIssue), goods(_goods) {}
int Invoice::getNumberInvoice() const
{
return numberInvoice;
}
int Invoice::getDateIssue() const
{
return dateIssue;
}
std::map<Stock, double> Invoice::getGoods() const
{
return goods;
}
void Invoice::setNumberInvoice(int _numbInvoice)
{
numberInvoice = _numbInvoice;
}
void Invoice::setDateIssue(int _dIssue)
{
dateIssue = _dIssue;
}
void Invoice::setGoods(const std::map<Stock, double>& _goods)
{
goods = _goods;
}
void Invoice::addGood(const Stock& s, double num)
{
goods[s] += num;
}
void Invoice::display() const
{
std::cout << "\nInvoice " << numberInvoice << '\n';
std::cout << "Date of issue " << dateIssue << '\n';
std::cout << "Goods:\n";
std::cout << "Code\t" << "Name\t" << "VPU\t" << "Num\t" << "Value\n";
for (const auto& [stock, val] : getGoods())
std::cout << stock.getCode() << '\t' << stock.getName() << '\t' <<
stock.getValuePerUnit() << '\t' << stock.getnumberUnits() << '\t' << val << '\n';
}
int main()
{
Stock s1 {1589, "Beer", 0.80, 2};
Invoice i1 {2, 1, std::map<Stock, double> { { s1, 3.30 } }};
i1.addGood(s1, 2);
i1.display();
}
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