bookInventoryPrediction.cpp

#include<iostream>
#include <math.h>
#include <vector>

using namespace std;

int StartUp(){
 int bookCode;
 cout << "Please enter the book code: ";
 cin>>bookCode;
 return bookCode;
}


int singleCopyPrice(){
 int price;
 cout <<"single copy price: ";
 cin>> price;
 return price;
}

int numberOnHand(){
  int number;
  cout <<"number on hand: ";
  cin>>number;
  return number;
}

int prospectiveStudent(){
  int number;
  cout <<"prospective enrollment: ";
  cin>>number;
  return number;
}

int requiredOroptional(){
 int option;
 cout <<"1 for reqd/0 for optional: ";
 cin>>option;
 return option;
}

int NewOrUsed(){
 int option;
 cout <<"1 for new/0 for used: ";
 cin>>option;
 return option;
}

int inventoryResult(int inventory, int enroll, int number, int reqOrop){

    if(reqOrop == 1){
        inventory = enroll * 0.40;
        inventory = abs(inventory - number);
        return inventory;
    }
    if(reqOrop == 0){
        inventory = enroll * 0.20;
        inventory = abs(inventory - number);
        return inventory;
    }

}


int numberOfBookToBuy(int inventory,int enroll, int number,int newOruse){


    if(newOruse == 1){
        inventory = enroll * 0.9;
        inventory = abs(inventory - number);
        return inventory;
    }
    if(newOruse == 0){
        inventory = enroll * 0.65;
        inventory = abs(inventory - number);
        return inventory;
    }

}


int summerizeInput(){
  int bookCode = StartUp();
  int price = singleCopyPrice();
  int enroll = prospectiveStudent();
  int number = numberOnHand();
  int inventory = number;
  int n = requiredOroptional();
  int n2 = NewOrUsed();

  int inventoryReq  = inventoryResult( inventory,enroll,number,n);

  int numberofBook  = numberOfBookToBuy(inventoryReq, enroll,number,n2);//numbook - invve

  cout<<"***************************************************"<<endl;
  cout<<"Book: "<<bookCode<<endl;
  cout<<"Price: "<<price<<endl;
  cout<<"Inventory: "<<inventoryReq<<endl;
  cout<<"Enrollment: "<<enroll<<endl;

  cout<<endl;

  if((n == 0) && (n2 == 0)){
    cout<< "This book is optional and used."<<endl;
  }
  if((n == 0) && (n2 == 1)){
    cout<< "This book is optional and New."<<endl;
  }
  if((n == 1) && (n2 == 0)){
    cout<< "This book is required  and used."<<endl;
  }
  if((n == 1) && (n2 == 1)){
    cout<< "This book is required  and New."<<endl;
  }
  int cost = numberofBook * price;
  cout<<"***************************************************"<<endl;
  cout<<"Need to order: "<< numberofBook<<endl;
  cout<<"Total Cost: "<< cost<<endl;
  cout<<"***************************************************"<<endl;

 return cost;
}

vector<int> result;
void totalCost(int cost){

  result.push_back(cost);
}


int main(){
int cost = 0;
int totalCo= 0;
char done;
do {
  cost = summerizeInput();
  totalCost(cost);
  cout<<"Enter y to do another book,n to stop."<<endl;
  cin>>done;
} while (done != 'n');

for(auto res : result){
    totalCo +=res;
}
cout<<"***************************************************"<<endl;
cout<<"Total for all orders: "<< totalCo<<endl;
cout<<"Profit: "<< (totalCo - (totalCo * 0.8))<<endl;
cout<<"***************************************************"<<endl;


return 0;
}