#include <iostream>
#include <conio.h>
#include <string>
#include <list>
#include <iterator>
#include <fstream>

using namespace std;

struct calendar
{
    int zi, luna, an;
};

class Program
{
public:
    int zi, luna, an;
    int tip_derivat;
public:
    Program()
    {
        zi = luna = an = -1;
    }

    Program(int tip_derivat)
    {
        this->tip_derivat = tip_derivat;
    }

    Program(int zi, int luna, int an, int tip_derivat)
    {
        this->an = an;
        this->luna = luna;
        this->zi = zi;
        this->tip_derivat = tip_derivat;
    }

    virtual void afisare_program()
    {
        cout << "---------------" << endl;
        cout << "Data: " << zi << "/" << luna << "/" << an << endl;
    }

    virtual void setValori(int zi, int luna, int an)
    {
        this->zi = zi;
        this->luna = luna;
        this->an = an;
    }

    friend istream& operator >>(istream&, Program*&);
    friend ostream& operator <<(ostream&, Program*);
    friend void afisare(list<Program*>);
    friend void cautare(list<Program*>);
    friend void stergere(list<Program*>&);
    friend void modificare(list<Program*>);
};

class Fizic : public Program
{
public:
    string tip_exercitiu;
    int durata;
    string intensitatea;
    int calorii_arse;
public:
    Fizic() {}
    Fizic(int zi, int luna, int an, string tip_exercitiu, int durata, string intensitatea, int calorii_arse, int tip_derivat) : Program(an, luna, zi, tip_derivat)
    {
        this->tip_exercitiu = tip_exercitiu;
        this->durata = durata;
        this->intensitatea = intensitatea;
        this->calorii_arse = calorii_arse;
    }
    void afisare_program()
    {
        Program::afisare_program(); // apelam functia din clasa de baza
        cout << "Tip exercitiu: " << tip_exercitiu << endl;
        cout << "Durata: " << durata << " minute\n";
        cout << "Intensitatea: " << intensitatea << endl;
        cout << "Calorii arse: " << calorii_arse << endl;
    }

    int getCaloriiArse()
    {
        return calorii_arse;
    }

    void setValori(int zi, int luna, int an, string tip_exercitiu, int durata, string intensitatea, int calorii_arse)
    {
        Program::setValori(zi, luna, an);
        this->tip_exercitiu = tip_exercitiu;
        this->durata = durata;
        this->intensitatea = intensitatea;
        this->calorii_arse = calorii_arse;
    }
};

class Masa : public Program
{
public:
    int ora;
    int min;
    int gramaj;
    int calorii_ingerate;
public:
    Masa() {}

    Masa(int zi, int luna, int an, int tip_derivat, int ora, int min, int gramaj, int calorii_ingerate) : Program(an, luna, zi, tip_derivat)
    {
        this->ora = ora;
        this->min = min;
        this->gramaj = gramaj;
        this->calorii_ingerate = calorii_ingerate;
    }

    void afisare_program()
    {
        Program::afisare_program(); // apelam functia din clasa de baza
        cout << "Ora: " << ora << ":" << min << endl;
        cout << "Gramaj: " << gramaj << endl;
        cout << "Calorii ingerate: " << calorii_ingerate << endl;
    }

    int getCaloriiIngerate()
    {
        return calorii_ingerate;
    }

    void setValori(int zi, int luna, int an, int ora, int min, int gramaj, int calorii_ingerate)
    {
        Program::setValori(zi, luna, an);
        this->ora = ora;
        this->min = min;
        this->gramaj = gramaj;
        this->calorii_ingerate = calorii_ingerate;
    }
};

istream& operator >> (istream& in, Program*& a)// functia de supraincarcare a operatorului de citire
{
    int an, luna, zi, durata, calorii_arse, ora, min, gramaj, calorii_ingerate;
    string tip, intensitate;

    cout << endl << "Introduceti datele despre un program: " << endl;
    cout << "Data (zi luna an): ";
    in >> zi >> luna >> an;

    if (a->tip_derivat == 0) // daca s-a ales adaugarea unui nou exercitiu fizic
    {
        cout << "Introduceti tipul exercitiului: ";
        in >> tip;
        cout << "Introduceti durata: ";
        in >> durata;
        cout << "Introduceti intensitatea: ";
        in >> intensitate;
        cout << "Introduceti caloriile arse: ";
        in >> calorii_arse;
        Fizic* f = new Fizic(zi, luna, an, tip, durata, intensitate, calorii_arse, 0); //apelare constructor cu info citite
        a = f; //cast pentru clasa de baza
    }
    else if (a->tip_derivat == 1) //daca s-a ales adaugarea unei mese consumate
    {
        cout << "Introduceti ora: ";
        in >> ora >> min;
        cout << "Introduceti gramajul: ";
        in >> gramaj;
        cout << "Introduceti caloriile ingerate: ";
        in >> calorii_ingerate;
        Masa* m = new Masa(zi, luna, an, 1, ora, min, gramaj, calorii_ingerate);//apelare constructor cu info citite
        a = m;//cast pentru clasa de baza
    }
    return in;
}

ostream& operator << (ostream& out, Program* obj) // functia de supraincarcare a operatorului de scriere
{
    // Afisam datele despre un articol
    obj->afisare_program();
    return out;
}
// Introducere elemente in lista eterogena
void introducere(list<Program*>& lista, int tip_derivat)
{
    Program* pr = new Program(tip_derivat);
    cin >> pr; // supraincarcarea citirii
    lista.push_front(pr);//se adauga nodul in fata
}

void afisare(list<Program*> lista)
{
    list <Program*> ::iterator i;
    for (i = lista.begin(); i != lista.end(); i++)
    {
        Program* pr = (*i);
        cout << pr;
        char ch = _getch(); // afisare pas cu pas
    }
}

void cautare(list<Program*> lista)
{
    int an, luna, zi, caloriiArse = 0, caloriiIngerate = 0;
    cout << "Introduceti data cautata (zi luna an): ";
    cin >> zi >> luna >> an;
    Fizic *f;
    Masa *m;
    cout << "Inregistrarile din ziua " << zi << "/" << luna << "/" << an << ":\n";
    list <Program*> ::iterator i;
    for (i = lista.begin(); i != lista.end(); i++)
    {
        Program* pr = (*i);
        if (pr->an == an && pr->luna == luna && pr->zi == zi)
            if (pr->tip_derivat == 0)
            {
                f = (Fizic*)pr;
                caloriiArse += f->getCaloriiArse();
                cout << pr;
            }
        if (pr->tip_derivat == 1)
        {
            m = (Masa*)pr;
            caloriiIngerate += m->getCaloriiIngerate();
            cout << pr;
        }
    }
    cout << "\nRaportul de calorii mancate/arse: " << (double)caloriiIngerate / caloriiArse;
    char ch = _getch();
}

void stergere(list<Program*> &lista)
{
    int an, luna, zi, caloriiArse = 0, caloriiIngerate = 0, r;
    cout << "Introduceti data (zi luna an): ";
    cin >> zi >> luna >> an;

    list <Program*> ::iterator i;
    for (i = lista.begin(); i != lista.end(); i++)
    {
        Program* pr = (*i);
        if (pr->an == an && pr->luna == luna && pr->zi == zi)
        {
            cout << pr;
            cout << "Stergeti aceasta inregistrare? (1 - Da, 0 - Nu): ";
            cin >> r;
            if (r)
            {
                lista.erase(i);
                cout << "Element sters\n";
                char ch = _getch();
                return;
            }
        }
    }
}

void modificare(list<Program*> lista)
{
    int an_m, luna_m, zi_m, caloriiArse = 0, caloriiIngerate = 0, r;
    int an, luna, zi, durata, calorii_arse, ora, min, gramaj, calorii_ingerate;
    string tip, intensitate;
    cout << "Introduceti data (zi luna an): ";
    cin >> zi_m >> luna_m >> an_m;

    Fizic *f;
    Masa *m;

    list <Program*> ::iterator i;
    for (i = lista.begin(); i != lista.end(); i++)
    {
        Program* pr = (*i);
        if (pr->an == an_m && pr->luna == luna_m && pr->zi == zi_m)
        {
            cout << pr;
            cout << "Modificari aceasta inregistrare? (1 - Da, 0 - Nu): ";
            cin >> r;
            if (r)
            {
                if (pr->tip_derivat == 0)
                {
                    cout << endl << "Introduceti datele noi: " << endl;
                    cout << "Data (zi luna an): ";
                    cin >> zi >> luna >> an;
                    cout << "Introduceti tipul exercitiului: ";
                    cin >> tip;
                    cout << "Introduceti durata: ";
                    cin >> durata;
                    cout << "Introduceti intensitatea: ";
                    cin >> intensitate;
                    cout << "Introduceti caloriile arse: ";
                    cin >> calorii_arse;

                    f = (Fizic*)pr;
                    f->setValori(zi, luna, an, tip, durata, intensitate, calorii_arse);
                }
                if (pr->tip_derivat == 1)
                {
                    cout << endl << "Introduceti datele noi: " << endl;
                    cout << "Data (zi luna an): ";
                    cin >> zi >> luna >> an;
                    cout << "Introduceti ora: ";
                    cin >> ora >> min;
                    cout << "Introduceti gramajul: ";
                    cin >> gramaj;
                    cout << "Introduceti caloriile ingerate: ";
                    cin >> calorii_ingerate;

                    m = (Masa*)pr;
                    m->setValori(zi, luna, an, ora, min, gramaj, calorii_ingerate);
                }
                cout << "Element modificat cu succes!\n";
                char ch = _getch();
                return;
            }
        }
    }
}

void importare(list<Program*> lista)
{
    ofstream fis;
    fis.open("fisier.txt");
    Fizic *f;
    Masa *m;
    list <Program*> ::iterator i;
    for (i = lista.begin(); i != lista.end(); i++)
    {
        Program* pr = (*i);
        if (pr->tip_derivat == 0)
        {
            f = (Fizic*)pr;
            fis << "-------------\n";
            fis << f->zi << "/" << f->luna << "/" << f->an << "\n";
            fis << "Tip exercitiu: " << f->tip_exercitiu << endl;
            fis << "Durata: " << f->durata << " minute\n";
            fis << "Intensitatea: " << f->intensitatea << endl;
            fis << "Calorii arse: " << f->calorii_arse << endl;
        }
        if (pr->tip_derivat == 1)
        {
            m = (Masa*)pr;
            fis << "-------------\n";
            fis << m->zi << "/" << m->luna << "/" << m->an << "\n";
            fis << "Ora: " << m->ora << ":" << m->min << endl;
            fis << "Gramaj: " << m->gramaj << endl;
            fis << "Calorii ingerate: " << m->calorii_ingerate << endl;
        }
    }
    fis.close();
}

//void citire_fisier()
//{
//  ifstream fis("magazin.txt");
//  string linie_fisier;
//
//  if (fis.is_open())
//  {
//      while (getline(fis, linie_fisier))
//      {
//          cout << linie_fisier << endl;
//      }
//      fis.close();
//  }
//  else
//      cout << "Nu s-a putut deschide fisierul";
//  char ch = _getch();
//
//}

int main() //programul principal
{
    int opt;
    // Lista eterogena de exercitii si mese
    list<Program*> pr;
    do
    {
        system("CLS");
        //meniu
        cout << "1.Adaugare unui exercitiu fizic.\n";
        cout << "2.Adaugare unei mese consumate.\n";
        cout << "3.Afisarea intregii liste.\n";
        cout << "4.Cautarea inregistrarilor dupa o anumita data si raportul de calorii.\n";
        cout << "5.Stergerea unei inregistrari eronate.\n";
        cout << "6.Modificarea unei inregistrari eronate.\n";
        cout << "7.Importarea/exportarea datelor in fisier de tip .txt.\n";
        cout << "0.Iesire.\n";
        cout << "Dati optiunea dvs: ";
        cin >> opt;
        //apelare functii in functie de optiunea aleasa
        switch (opt)
        {
        case 1: introducere(pr, 0);
            break;
        case 2: introducere(pr, 1);
            break;
        case 3: afisare(pr);
            break;
        case 4: cautare(pr);
            break;
        case 5: stergere(pr);
            break;
        case 6: modificare(pr);
            break;
        case 7: importare(pr);
            break;
        case 0: break;
        default:cout << "Comanda gresita!";
        }
    } while (opt != 0);
    return 0;
}