/*   - in a file you can find info about app. the name of the person who is selling
the app. (one Family name and any nr. of Firstname;) 
then the area: Pest or Buda; the area - how many sqm; - and price/ sqm;
 - write in an output file  the name, sqm and  price/ sqm of those 
which are located in Buda and are bigger then 80 sqm */

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

using namespace std;

enum area {Buda, Pest};

struct appart{
    string Fam_name;
    vector<string> First_n;
    area where;
    int sqrtm;
    int sqrt_price;
};

enum status{is_false, is_true };

bool read(status & it_is, appart & app, ifstream &x);
void write(ofstream &y, appart & app_2);

int main()
{

    string fname;
    cout << " - the name of the inp. file: "; cin >> fname;

    ifstream x(fname.c_str());

    if(x.fail()) {
        cerr << " - there is no such input file! "<<endl;
        system("pause");
        exit(1);
    }

    ofstream y("Budai.txt");
    if(y.fail()) {
        cerr << " - the outfile could not be created! "<<endl;
        system("pause");
        exit(1);
    }

appart app;
status it_is;
bool l;

    l=read(it_is,app,x);
    while(it_is==true)
    {
        if (l)
        {
            if (app.where==Buda && app.sqrtm>=80)
            {
                write(y,app);
            }
        }
        l=read(it_is,app,x);
    }
    x.close();
    y.close();

    return 0;
}


bool read(status & it_is, appart & app, ifstream &x)
{
  string line;

  getline(x, line);

   if (!x.fail())
  {
    it_is=is_true;
    stringstream inf(line);
    vector<string> h;

    string tmp;
    inf>>tmp;

    while(!inf.fail()){
        h.push_back(tmp);
        inf>>tmp;
    }

    int n=h.size();  // n data in a row
    cout<<" - the data in the row are: "<<endl;

    for(int i=0; i<n; i++) cout<<h[i]<<" ";
    cout<<endl;

     if(n<5)
    {
        cout<<" - not enough data "<<endl;
        return false;
    }

    app.Fam_name=h[0];
    app.First_n.resize(0);
    for (int i=1;i<n-3;i++) app.First_n.push_back(h[i]);
    if (h[n-3]=="Buda")
    {
        app.where=Buda;
    }
    else
    {
        if (h[n-3]=="Pest")
        {
            app.where=Pest;
        }
        else
        {
            cout<<" - the name of the area is incorrect "<<endl;
            return false;
        }
    }
    app.sqrtm=atoi(h[n-2].c_str());
    app.sqrt_price=atoi(h[n-1].c_str());
  }
  else it_is = is_false;

  return true;
}



void write(ofstream &y, appart & app_2)
{
    y << app_2.Fam_name ;
    int n=app_2.First_n.size();
    for(int i=0;i<n;i++) y<<' '<<app_2.First_n[i];
    y<<'\t'<<app_2.sqrtm;
    y<<'\t'<<app_2.sqrt_price;
    y<<endl;

}