#include <string>
#include <iostream>
#include <sstream>
#include <vector>
#include <stdexcept>

struct Cloth
{
  std::string name;
  int size;
};

std::ostream& operator<<(std::ostream& oss, Cloth const& c)
{
  return oss << c.name << ": " << c.size;
}

class WashMachine
{
public:
  WashMachine() : items{}
  {}
  
  void start()
  {
    Cloth tangle{"", 0};

    while ( ! items.empty() )
    {
      Cloth c{ items.back() };
      tangle.name += c.name;
      tangle.size += c.size;
      items.pop_back();
    }
    items.push_back( tangle );
  }

  void insert(Cloth const& o)
  {
    items.push_back(o);
  }

  bool is_empty() const
  {
    return items.size() == 0;
  }
  
  Cloth remove()
  {
    Cloth o{items.back()};
    items.pop_back();
    return o;
  }

private:
  std::vector<Cloth> items;
};

int main()
{
  std::cout << "=== Test 0 ===" << std::endl;
  {
    Cloth c1{"PJ", 5};
    Cloth c2{"JohnLongs", 10};

    std::cout << c1 << ", " << c2 << std::endl;
  }
  
  std::cout << "=== Test 1 ===" << std::endl;
  {
    WashMachine m1{};

    m1.insert(Cloth{"PJ", 7});
    m1.insert(Cloth{"Sock", 3});
    m1.insert(Cloth{"LongJohns", 10});
    m1.insert(Cloth{"Bed Sheet", 90});
    m1.insert(Cloth{"Shoe", 8});
    m1.insert(Cloth{"T-Shirt", 8});

    // Vi glömde avsiktligt att starta maskinen!
    
    while ( not m1.is_empty() )
    {
      std::cout << m1.remove() << std::endl;
    }
  }

  std::cout << "=== Test 2 ===" << std::endl;
  {
    WashMachine m1{};

    m1.insert(Cloth{"PJ", 7});
    m1.insert(Cloth{"Sock", 3});
    m1.insert(Cloth{"LongJohns", 10});
    m1.insert(Cloth{"Bed Sheet", 90});
    m1.insert(Cloth{"Shoe", 8});
    m1.insert(Cloth{"T-Shirt", 8});

    m1.start(); // Vi kom ihåg starta maskinen
    
    while ( not m1.is_empty() )
    {
      std::cout << m1.remove() << std::endl;
    }
  }
}