#include <iostream>
#include <string>
#include <fstream>
#include <thread>
using namespace std;
int response,doesntWorkIfIDontDoThis;

class Books{
  public:
    string name;
    float price;
    string author;
    string publishingHouse;
    //int numberOfPages; we ll work on that idea later
    string genre;

};

class BookShop{
  public:
   
   Books books;

   void addBook();
   void removeBook();
   void updateBook();
   void searchBook();
   void availabilityCheck();

}bookshopEntry;
void removeBookDetails(string name, string author){
  ifstream file;
  ofstream ok;
  string fileName = "bookshop.txt";
  string tempFileName = "temp.txt";
  file.open(fileName);
  ok.open(tempFileName);
  string line;

  while(getline(file,line)){
    if(line.find(name) != string::npos && line.find(author) != string::npos){
      continue;
    }
    else
     ok << line;
  }

  remove(fileName.c_str());
  rename(tempFileName.c_str(),fileName.c_str());
}
bool checkNameAlreadyExists(string name){
  ifstream file;
 
   file.open("bookshop.txt");
   string line;
   while(getline(file,line)){
     if(line.find(name) != string::npos)
      return true;
   }
  return false;
}

void BookShop::addBook(){
   if(doesntWorkIfIDontDoThis == 0)
    cin.ignore();

   cout << "Name : ";
   getline(cin,bookshopEntry.books.name);

   if(checkNameAlreadyExists(bookshopEntry.books.name)){
     cout << "Woah!It appears that this book name has already been registered.Maybe try again\n";
     doesntWorkIfIDontDoThis++;
     addBook();
   }
   //cin.ignore();

   cout << "Author : ";
   getline(cin,bookshopEntry.books.author);
   
   //cin.ignore();

   cout << "Genre : ";
   getline(cin,bookshopEntry.books.genre);
   
   //cin.ignore();

   cout << "Publishing house : ";
   getline(cin,bookshopEntry.books.publishingHouse);

   //cin.ignore();

   cout << "Price(in euros) : ";
   cin >> bookshopEntry.books.price;
   
   ofstream file;
   file.open("bookshop.txt",ios::app);
   
   file << bookshopEntry.books.name << "  " << bookshopEntry.books.author << "  " << bookshopEntry.books.genre 
   << "  " << bookshopEntry.books.publishingHouse << "  " << bookshopEntry.books.price << " euro(s)\n";

   file.close();

   cout << "Book added succesfully!\n";
   
   doesntWorkIfIDontDoThis = 0;
   
   this_thread::sleep_for(1000ms);
}

void BookShop::removeBook(){
   cin.ignore();

   cout << "Name : ";
   cin >> bookshopEntry.books.name;

   cout << "Author : ";
   cin >> bookshopEntry.books.author;


}

void BookShop::updateBook(){

}

void BookShop::searchBook(){

}

void BookShop::availabilityCheck(){

}
int main(){

 while(true){
   cout << "=== BOOKSHOP MANAGEMENT SYSTEM ===\n";

   cout << "1.Add a book to the bookshop\n";
   cout << "2.Remove a book from the bookshop\n";
   cout << "3.Update a book's information\n";
   cout << "4.Search for a specific book\n";
   cout << "5.Check if a book is available to buy\n";
   cout << "> ";
   cin >> response;

   switch (response)
   {
   case 1:
    bookshopEntry.addBook();
    break;
   case 2:
    bookshopEntry.removeBook();
    break;
   case 3:
    bookshopEntry.updateBook();
    break;
   case 4:
    bookshopEntry.searchBook();
    break;
   case 5:
    bookshopEntry.availabilityCheck();
    break;
   default:
    break;
   }
 }
}