// main.cpp
#include "base.hpp"

void printFMRadio(const FMRadio &rf)
{
        system("cls");

    cout << "*** FM Radio je u stanju: ";
    switch(rf.getState())
    {
        case sON:
            cout << "ON! ***" << endl;
            break;
        case sOFF:
            cout << "OFF! ***" << endl;
            break;
        case sOUT:
            cout << "OUT! ***" << endl;
            break;
        default:
            cout << "N/A ***" << endl;
            break;
    }

    cout << "Frekvencija je: " << rf.getFQ() << " MHz" << endl;
    cout << "Jacina zvuka je: " << rf.getVol() << endl;
    cout << endl;

}

char meni()
{
    char odg;

    do
    {
        cout << "Izabrerite opciju :" << endl;
        cout << "1. Ukljuci FMRadio" << endl;
        cout << "2. Iskljuci FMRadio" << endl;
        cout << "3. Pokvari FMRadio" << endl;
        cout << "4. Popravi FMRadio" << endl;
        cout << "5. Povecaj frekvenciju" << endl;
        cout << "6. Smanji frekvenciju" << endl;
        cout << "7. Povecaj jacinu zvuka" << endl;
        cout << "8. Smanji jacinu zvuka" << endl;
        cout << "9. Kraj rada" << endl;
        cin >> odg;
    }
    while (odg < '1' || odg > '9');

    return odg;
}

int main()
{
    FMRadio f;
    char ch;

    do
    {
        ch = meni();
        switch(ch)
        {
            case '1':
            if (f.turnOn())
                cout << "Operacija izvrsena!" << endl;
            else
                cout << "Operacija nije izvrsena!" << endl;
                printFMRadio(f);
                break;

            case '2':
                if (f.turnOff())
                    cout << "Operacija izvrserna!" << endl;
                else
                    cout << "Operacija nije izvrsena!" << endl;
                    printFMRadio(f);
                    break;

            case '3':
                if (f.turnOut())
                    cout << "Operacija izvrsena!" << endl;
                else
                    cout << "Operacija nije izvrsena!" << endl;
                    printFMRadio(f);
                    break;

                case '4':
                    if (f.repair())
                        cout << "Operacija izvrsena!" << endl;
                    else
                        cout << "Operacija nije izvrsena!" << endl;
                        printFMRadio(f);
                        break;

                case '5':
                    if (f.incF())
                        cout << "Operacija izvrsena!" << endl;
                    else
                        cout << "Operacija nije izvrsena!" << endl;
                        printFMRadio(f);
                        break;

                case '6':
                    if (f.decF())
                        cout << "Operacija izvrsena!" << endl;
                    else
                        cout << "Operacija nije izvrsena!" << endl;
                        printFMRadio(f);
                        break;

                case '7':
                    if (f.incV())
                        cout << "Operacija izvrsena!" << endl;
                    else
                        cout << "Operacija nije izvrsena!" << endl;
                        printFMRadio(f);
                        break;

                case '8':
                    if (f.decV())
                        cout << "Operacija izvrsena!" << endl;
                    else
                        cout << "Operacija nije izvrsena!" << endl;
                        printFMRadio(f);
                        break;
        }
    }
    while (ch != '9');

    return 0;

}

// radio.hpp
#ifndef RADIO_HPP_INCLUDED
#define RADIO_HPP_INCLUDED

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

using namespace std;

// Config:
#define MINF 87.5
#define MAXF 108.0
#define MINV 0
#define MAXV 20
#define PV 1
#define PF 0.5

enum stanje
{
    sON, sOFF, sOUT
};

class FMRadio
{
    private:
        stanje state;
        double FQ;
        int vol;

    public:
        // Konstruktor + Konstruktor kopije!
        FMRadio();
        FMRadio(const FMRadio&);

        // Metode!
        stanje getState() const;
        int getVol() const;
        double getFQ() const;
        bool turnOn();
        bool turnOff();
        bool turnOut();
        bool repair();
        bool incV();
        bool decV();
        bool incF();
        bool decF();

};



#endif // RADIO_HPP_INCLUDED

// radio.cpp
#include "radio.hpp"

FMRadio :: FMRadio()
{
    state = sOFF;
    FQ = MINF;
    vol = MINV;
}

FMRadio :: FMRadio(const FMRadio &rf)
{
    state = rf.state;
    FQ = rf.FQ;
    vol = rf.vol;
}

stanje FMRadio :: getState() const
{
    return state;
}

double FMRadio :: getFQ() const
{
    return FQ;
}

int FMRadio :: getVol() const
{
    return vol;
}

bool FMRadio :: turnOn()
{
    if (state == sOFF)
    {
        state = sON;
        return true;
    }
    else
        return false;
}

bool FMRadio :: turnOff()
{
    if (state == sON)
    {
        state = sOFF;
        return true;
    }
    else
        return false;
}

bool FMRadio :: turnOut()
{
    if (state == sON || state == sOFF)
    {
        state = sOUT;
        FQ = -1;
        vol = -1;
        return true;
    }
    else
        return false;
}

bool FMRadio :: repair()
{
    if (state == sOUT)
    {
        state = sOFF;
        return true;
    }
    else
        return false;
}

bool FMRadio :: incV()
{
    if (state == sON && vol+PV <= MAXV)
    {
        vol+=PV;
        return true;
    }
    else
        return false;
}

bool FMRadio :: decV()
{
    if (state == sON && vol-PV >= MINV)
    {
        vol-=PV;
        return true;
    }
    else
        return false;
}

bool FMRadio :: incF()
{
    if (state == sON && FQ+PF <= MAXF)
    {
        FQ+=PF;
        return true;
    }
    else
        return false;
}

bool FMRadio :: decF()
{
    if (state == sON && FQ-PF >= MINF)
    {
        FQ-=PF;
        return true;
    }
    else
        return false;
}