C++ ; Thank you in advance!

Use the code developed below

1.1. Create an abstract class Item, having the abstract function: double GetTotalPrice()

2. Update the Product class to inherit Item

Driver Program:

Change the driver program from the code below to:

(1) Remove the Products and Services vectors

(2) Add a new vector called Items, which contains pointers to Item instances

(3) Add at least 3 products and 3 services to the Items collection

(4) Use a loop to calculate and display the total prices of all elements in the Items collection

The code:

#include

#include

#include

#include

using namespace std;

//Enum for discount type

enum Discount_Type {amount,percentage};

//to store all the department id to check for duplication

set departmentID;

//Department class which contains id, name,room phone number and parent department

class Department{

string id;

string name;

int room;

string phoneNumber;

Department *parent;

public:

//Empty constructor

Department(){}

//parametrized constructor

Department(string id,string name,int room,string phoneNumber,Department *parent){

//check for duplication of id

if(departmentID.count(id)>0){

cout<<"Oject Not created Due to Department ID already exist ";

return;

}else{

departmentID.insert(id);

}

this->id = id;

this->name = name;

this->room = room;

this->phoneNumber = phoneNumber;

this->parent = parent;

}

//this will return all the values of the object for printing

string toString(){

string output=" ";

output += "\tId: "+ id + " ";

output += "\tName: " +name + " ";

output += "\tRoom: " + to_string(room) + " ";

output += "\tPhoneNumber: " + phoneNumber + " ";

if(parent !=NULL){

output += "Parent Department: " + parent->toString();

}

return output;

}

};

//Product class whih Contains name, description category, department, price, discount,discount type

class Product{

protected:

string name;

string description;

string category;

Department department;

double price;

double discount;

int discount_type;

public:

//empty constructor

Product(){}

//parametrized constructor

Product(string name,string description,string category,Department department,float price,float discount,Discount_Type discount_type){

//if price value is negative then it returns with a messsage;

if(price < 0){

cout<<"No object create due to negative value of price ";

return;

}

//if discount value is negative then it returns with a messsage;

if(discount < 0){

cout<<"No object create due to negative value of discount ";

return;

}

//if every thing fine then we just simply add values to the variables

this->name = name;

this->description = description;

this->category = category;

this->department = department;

this->price = price;

this->discount = discount;

this->discount_type = discount_type;

}

//this will return the total price after neglect the discount

double getTotalPrice(){

//if discount is of type amount

if(discount_type == amount){

double finalP = price-discount;

if(finalP < 0 ){

cout<<"Total Price cannot be negative";

return 0;

}else{

return finalP;

}

}else{

//if the discount is of the type percentage

double finalP = price - (price * discount/100);

if(finalP < 0 ){

cout<<" Total Price cannot be negative ";

return 0;

}else{

return finalP;

}

}

}

//return the values of each variable to print in string form

virtual string toString(){

string output="";

output += "Name: " +name + " " ;

output += "Description: " + description + " " ;

output += "Category: " + category + " ";

output += "Department: " + department.toString() + " ";

double totalPrice = this->getTotalPrice();

output += "Total Price " + to_string(totalPrice) + " ";

return output;

}

};

//Service class which contains duration and it import the class Product in public accessor mode

class Service : public Product{

double duration;

//Call the product i.e. super class constructor

public:

Service(string name, string description,string category,Department department,double duration,double rate,double rate_discount,Discount_Type discount_type):Product(name,description,category,department,rate,rate_discount,discount_type){

this->duration = duration;

}

//this will return all the variables value

virtual string toString2(){

string output ="";

output += toString();

output += "Duration: "+ to_string(duration) + " ";

return output;

}

};

int main(){

//create vector of all the class

vector department;

vector product;

vector service;

// add 3 objects of departments

Department d1("ABCD-EFGH-1234","Electronics",260,"0888123456",NULL);

Department d2("ABCD-EFGH-8965","Mechanical",452,"0963258741",NULL);

Department d3("ABCD-EFGH-7412","IT",153,"0258777412",&d1);

//add department object to the vector

department.push_back(d1);

department.push_back(d2);

department.push_back(d3);

//create object of products

Product p1("PC Tools","Tools used to design, repair or develop an PC","Games",d3,185.99,30,amount);

Product p2("Car Tools","Tools used to repair cars i.e. open and closing","Repair",d2,199.99,15,percentage);

Product p3("Bulb","Led bulb operate on very low power","Electonics",d1,400.56,80,amount);

//add product objects to the vector

product.push_back(p1);

product.push_back(p2);

product.push_back(p3);

//Create objects of service

Service s1("Repairing Cars","Repairing of Cars and automobile","Cars",d2,2,20.20,10,percentage);

Service s2("Web Developer","crete any web app or android app","IT",d3,12,500,50,amount);

Service s3("Repairing of Electronics tools","Repairing of CPU,montior","Electornics",d1,1.5,8.50,30,percentage);

//add service objects to vector

service.push_back(s1);

service.push_back(s2);

service.push_back(s3);

//print product vector data using for loop

cout<<"Products ";

cout<<"================================ ";

for(int i=0;i

cout<

cout<

cout<<"======================================== ";

}

//print service vector using for loop

cout<<" Services ";

cout<<"================================ ";

for(int i=0;i

cout<

cout<

cout<<"======================================== ";

}

//check duplication of id

cout<<" Check duplication of id ";

Department d4("ABCD-EFGH-7412","IT",153,"0258777412",&d1);

//check for negative price entered

cout<<" check for negative price entered ";

Product p4("PC Tools","Tools used to design, repair or develop an PC","Games",d3,-185.99,30,amount);

}