//第1章：重构，第1个案例

//场景：影片出租，计算每一位顾客的消费金额

/*

说明：

1. 影片分3类：普通片、儿童片和新片。

2. 每种影片计算租金的方式。

   A.普通片：基本租金为2元，超过2天的部分每天加1.5元

   B.新片：租期*3

   C.儿童片：基本租金为1.5元，超过3天的部分每天加1.5元

3. 积分的计算：每借1片，积分加1，如果是新片且租期1天以上的额外赠送1分。

*/

#include <iostream>

#include <vector>

#include <string>

#include <sstream>

using namespace std;

//影片类(只是一个简单的纯数据类)

class Movie

{

private:

    string title; //片名

    int pricecode; //价格

public:

    static const int CHILDRENS = ; //儿童片

    static const int REGULAR = ;   //普通片

    static const int NEW_RELEASE = ;//新片

    Movie(string title, int priceCode)

    {

        this->title = title;

        this->pricecode = priceCode;

    }

    string getTitle(){return title;}

    void setTitle(string value)

    {

        title = value;

    }

    int getPriceCode(){return pricecode;}

    void setPriceCode(int value)

    {

        this->pricecode = value;

    }

};

//租赁类（表示某个顾客租了一部影片）

class Rental

{

private:

    Movie& movie;   //所租的影片

    int daysRented; //租期

public:

    Rental(Movie& movie, int daysRented):movie(movie)

    {

        this->daysRented = daysRented;

    }

    int getDaysRented(){return daysRented;}

    Movie& getMovie()

    {

        return movie;

    }

};

//顾客类（用来表示顾客）

class Customer

{

private:

    string name; //顾客姓名

    vector<Rental*> rentals; //每个租赁记录

public:

    Customer(string name)

    {

        this->name = name;

    }

    void addRental(Rental* value)

    {

        rentals.push_back(value);

    }

    string getName(){return name;}

    //statement(报表)，生成租赁的详单

    string statement()

    {

        string ret = "Rental Record for " + name + "\n";

        double totalAmount = ;  //总租金额

        int frequentReterPoints = ; //常客积分

        vector<Rental*>::iterator iter = rentals.begin();

        while( iter != rentals.end())

        {

            double thisAmount = ;   //每片需要的租金

            Rental& each = *(*iter);

            int priceCode = (each.getMovie()).getPriceCode();

            switch(priceCode)

            {

            case Movie::REGULAR:

                thisAmount += ;    //普通片基本租金为2元

                if(each.getDaysRented() > )  //超过2天的每天加1.5元

                    thisAmount +=(each.getDaysRented() -  ) * 1.5;

                break;

            case Movie::NEW_RELEASE:

                thisAmount += each.getDaysRented() * ;    //新片的租金

                break;

            case Movie::CHILDRENS:

                thisAmount += 1.5;    //儿童片基本租金为1.5元

                if(each.getDaysRented() > )  //超过3天的每天加1.5元

                    thisAmount +=(each.getDaysRented() -  ) * 1.5;

                break;

            }

            //常客积分

            ++frequentReterPoints;

            //如果是新片且租期超过1天以上，则额外送1分积分

            if ((each.getMovie().getPriceCode() == Movie::NEW_RELEASE) &&

                each.getDaysRented() > )  ++frequentReterPoints;

            //显示每个租赁记录

            ostringstream oss;

            oss << thisAmount;

            ret += "\t" + each.getMovie().getTitle() + "\t" +

                 oss.str()+ "\n";

            totalAmount +=thisAmount;

            ++iter;

        }

        //增加页脚注释

        ostringstream oss;

        oss << totalAmount;

        ret += "Amount owed is " + oss.str() + "\n";

        oss.str("");

        oss << frequentReterPoints;

        ret += "You earned " + oss.str() +"\n";

        return ret;

    }

};

void init(Customer& customer)

{

    Movie* mv = new Movie("倚天屠龙记",Movie::REGULAR);

    Rental* rt = new Rental(*mv, );

    customer.addRental(rt);

    mv = new Movie("新水浒传",Movie::NEW_RELEASE);

    rt = new Rental(*mv, );

    customer.addRental(rt);

    mv = new Movie("喜羊羊与灰太狼",Movie::CHILDRENS);

    rt = new Rental(*mv, );

    customer.addRental(rt);

}

int main()

{

    Customer customer("SantaClaus");

    init(customer);

    cout << customer.statement() <<endl;

    return ;

}

/*输出结果

Rental Record for SantaClaus

        倚天屠龙记      2

        新水浒传        9

        喜羊羊与灰太狼  4.5

Amount owed is 15.5

You earned 4

*/