#include <iostream>
#include <fstream>
#include <string>
#include <vector>

struct check_product
{
    int number;
    std::string check_name;
    double check_price;
    double check_amount;
    double check_all;
};
/*struct check
{
    int day;
    int month;
    std::vector<check_product> check_p;
};*/

struct product
{
    int articl;
    std::string name;
    double price;
    double amount;
};
void print_check(const std::vector<check_product>& list)
{

}


void print_product_list(const std::vector<product>& list)
{
    for (unsigned i = 0; i < list.size(); ++i)
    {
        std::cout << " articl = "     << list[i].articl <<'\n'<<
                     " name = "     << list[i].name <<'\n'<<
                     " price = "  << list[i].price <<'\n'<<
                     " amount = " << list[i].amount <<'\n'<<
                     std::endl;
    }

}


int main()
{
    std::vector<check_product> check_end;
     std::vector<product> products_list;
   std::string path = "myfile.txt";
   std::fstream fs;
   fs.open(path); //  (std::fstream::in | std::fstream::out | std::fstream::app)

   if (!fs.is_open())
   {
       std::cout<< "Error";
    }

   int passwod;
   std::cout<<"Enter a passwod: ";
   std::cin>>passwod;

   if (passwod==160716)
   {
        std::cout<<"All Ok. Go to shopping "<<std::endl;
   std::string temp_name;
   std::string temp_price, temp_amount, delim;
   std::string temp_articl;


   while (!fs.eof()) // filling struct
   {
       fs >> temp_articl >> temp_name >> temp_price >> temp_amount >> delim;
       products_list.push_back({std::atoi(temp_articl.c_str()), temp_name, std::atof(temp_price.c_str()), std::atof(temp_amount.c_str())});
   }
   //std::string paths = "Check.txt";

   //std::fstream ft;
   //ft.open(paths);

   print_product_list(products_list);
   int sum = 0;
   double temp_amounts;

    while(1)
    {
        int a;

        std::cout<<"If you want to buy a product via category enter 1\n "
                   "If you want to pay enter 2\n"
                "If you want to return product enter 3"<<std::endl;
        std::cin>>a;
        switch (a)
        {
        case 1:
        {
            double b;
            unsigned n=0;
            while(1)
            {
                std::cout<<"Choose the category:\n"
                           "1-Fruits and vegetables\n"
                           "2-Meat\n"
                           "3-Grocery\n"
                           "4-Drinks\n"
                           "0-Return\n";

                int category;
                std::cin>>category;
                if (category==0) break;
                switch (category)
                {
                case 1:
                {
                    for (unsigned i=0; i<12; i++)
                    {
                        if(products_list[i].articl>10000)
                        {
                            if(products_list[i].articl<10100)
                            {
                            std::cout << " articl = "     << products_list[i].articl <<'\n'<<
                                         " name = "     << products_list[i].name <<'\n'<<
                                         " price = "  << products_list[i].price <<'\n'<<
                                         " amount = " << products_list[i].amount <<'\n'<<
                                         std::endl;
                            }
                         }
                    }
                    break;
                }
                case 2:
                {
                    for (unsigned i=0; i<12; i++)
                    {
                        if(products_list[i].articl>20000)
                        {
                            if(products_list[i].articl<20100)
                            {
                            std::cout << " articl = "     << products_list[i].articl <<'\n'<<
                                         " name = "     << products_list[i].name <<'\n'<<
                                         " price = "  << products_list[i].price <<'\n'<<
                                         " amount = " << products_list[i].amount <<'\n'<<
                                         std::endl;
                            }
                        }
                    }
                    break;
                }
                case 3:
                {
                    for (unsigned i=0; i<12; i++)
                    {
                        if(products_list[i].articl>30000)
                        {
                            if(products_list[i].articl<30100)
                            {
                            std::cout << " articl = "     << products_list[i].articl <<'\n'<<
                                         " name = "     << products_list[i].name <<'\n'<<
                                         " price = "  << products_list[i].price <<'\n'<<
                                         " amount = " << products_list[i].amount <<'\n'<<
                                         std::endl;
                            }
                        }
                    }
                    break;
                }
                case 4:
                {
                    for (unsigned i=0; i<12; i++)
                    {
                        if(products_list[i].articl>40000)
                        {
                            if(products_list[i].articl<40100)
                            {
                            std::cout << " articl = "     << products_list[i].articl <<'\n'<<
                                         " name = "     << products_list[i].name <<'\n'<<
                                         " price = "  << products_list[i].price <<'\n'<<
                                         " amount = " << products_list[i].amount <<'\n'<<
                                         std::endl;
                            }
                        }
                    }
                    break;

                }
                default:
                {
                    break;
                }
                }


                std::cout<<"Entera article of product\n";
                int temp_article;
                std::cin>>temp_article;
                for (unsigned j=0;j<20;j++)
                {
                     if(temp_article==products_list[j].articl)
                     {
                         std::cout << " articl = "     << products_list[j].articl <<'\n'<<
                                      " name = "     << products_list[j].name <<'\n'<<
                                      " price = "  << products_list[j].price <<'\n'<<
                                      " amount = " << products_list[j].amount <<'\n'<<
                                      std::endl;
                         std::cout<<"Choose a amount of product:";
                         std::cin >> temp_amounts;
                         products_list[j].amount-= temp_amounts;
                         sum += temp_amounts*products_list[j].price;

                     }
                     if(temp_article==products_list[j].articl)
                     {
                        check_end[n].check_name=products_list[j].name;
                        check_end[n].check_price=products_list[j].price;
                        check_end[n].check_amount=products_list[j].amount;
                        check_end[n].check_all=products_list[j].price*temp_amounts;
                     }
                }
                n++; temp_amounts=0;temp_article=0;category=0;a=0;
            }

        break;
        }
        case 2:
        {
            std::cout<<sum<<std::endl;
            print_check(check_end);

        break;
        }
        case 3:
        {

        break;
        }
        case 4:
        {

        break;
        }
        default:
        std::cout << "k";
        }

      }

   }

     else {std::cout<<"Passwod is not right";}



   fs.close();
}