CareerCup

sorry. Did not realized it should be for Java. Also movieDiscount should be summed

Chain of Responsibility pattern

k-mingle.blogspot.in/2014/12/chain-of-responsibility-design-pattern.html

class TMovie
{
public:
    enum eType { e2D = 0, e3D = 30, e4D = 50 };
    eType m_type;

    TMovie( eType type )
    {
        m_type = type;
    }
};

class TTicket
{
public:
    enum eAge { adult = 0, kid = 50, senior = 30 };

    eAge     m_ageDiscount;

    TTicket( eAge age )
    {
        m_ageDiscount = age;
    };
};

class TPurchase
{
public:
    static float           m_SinglePrice;
    TMovie  *              m_movie;
    std::vector<TTicket *> m_basket;
    int                    m_dayOfWeek;  

    int GetCurrentDayOfWeek()
    {
        return 3;
    }

    void Add( TTicket::eAge age, size_t num )
    {
        for( size_t i = 0; i < num; i++ )
        {
            m_basket.push_back( new TTicket( age ) );
        }
    }

    TPurchase( TMovie::eType type )
    {
        m_dayOfWeek = GetCurrentDayOfWeek();
        m_movie = new TMovie( type );
    };

    ~TPurchase()
    {
        for( size_t i = 0; i < m_basket.size(); i++ )
        {
            delete m_basket[i];
        }
    }

    float GetTotalPrice()
    {
        float price = 0.0;

        for( size_t i = 0; i < m_basket.size(); i++ )
        {
            float ageDiscount = m_basket[i]->m_ageDiscount *  m_SinglePrice / 100;
            float dayDiscount = ( 2 == GetCurrentDayOfWeek() ? 50 : 0 )  *  m_SinglePrice / 100;
            float movieDiscount = m_movie->m_type * m_SinglePrice / 100;

            price += m_SinglePrice - ( dayDiscount > 0 ? dayDiscount : ageDiscount ) - movieDiscount;
        }
        return price;
    }
};

float TPurchase::m_SinglePrice = 10.0;

void testAmazon13878774()
{
    TPurchase  tickets( TMovie::e2D ); 

    tickets.Add( TTicket::eAge::adult, 2 );
    tickets.Add( TTicket::eAge::kid, 3 );
    tickets.Add( TTicket::eAge::senior, 1 );

   cout << " Totoal price: " << tickets.GetTotalPrice() << endl;
}