Transactions

#include<iostream>
#include<cstring>

using namespace std;

class NotSupportedCurrencyException
{
    private:
    char valuta[4];
public:
    NotSupportedCurrencyException(char*valuta=""){strcpy(this->valuta,valuta);}
    void showMessage()
    {
    cout<<valuta<<" is not a supported currency"<<endl;
    }
};

class InvalidDateException{
    private:
    int den;
    int mesec;
    int godina;

public:
    InvalidDateException(int den , int mesec , int godina){
        this->den=den;
        this->mesec=mesec;
        this->godina=godina;
    }
    void showMessage(){cout<<"Invalid Date "<<den<<"/"<<mesec<<"/"<<godina<<endl;}
};
class Transaction{
protected:
    int day;
    int month;
    int year;
    double amount;
    static double EUR;
    static double USD;
    public:
    Transaction(int day=0 , int month = 0 , int year = 0 , double amount=0.0)
        {
        if(day<1||day>31 || month<1 ||month>12){
         throw InvalidDateException(day, month , year);
        }
        this->day=day;
        this->month=month;
        this->year=year;
        this->amount=amount;

    }
    Transaction(const Transaction &t)
    {
        this->day=t.day;
        this->month=t.month;
        this->year=t.year;
        this->amount=t.amount;
    }

    static void setEUR(double EUR){Transaction::EUR=EUR;}
    static void setUSD(double USD){Transaction::USD=USD;}
    //static double
    virtual void print()=0;
    virtual double toDenars()=0;




};
double Transaction::EUR=61.0;
double Transaction::USD=50.0;

class DenarsTransaction : public Transaction{
public:
    DenarsTransaction(int day=0 , int month = 0 , int year = 0 , double amount=0.0)
        :Transaction(day,month,year,amount){}

    DenarsTransaction(const DenarsTransaction &t) :Transaction (t){};
    void print()
    {
    cout<<day<<"/"<<month<<"/"<<year<<" "<<amount<<" MKD"<<endl;

    }
    double toDenars()
    {
    return this->amount;
    }

};
class ForeignCurrencyTransaction : public Transaction{
char value[4];
    public:
    ForeignCurrencyTransaction(int day=0 , int month = 0 , int year = 0 , double amount=0.0, char *value="")
        :Transaction(day,month,year,amount)
        {

            if(strcmp(value,"EUR")==0 || strcmp(value,"USD")==0){
                strcpy(this->value,value);
            }
            else
            {
            throw NotSupportedCurrencyException(value);
            }
        }
    ForeignCurrencyTransaction(const ForeignCurrencyTransaction &f): Transaction(f)
    {
    strcpy(this->value,f.value);
    }
    void print()
    {
    cout<<day<<"/"<<month<<"/"<<year<<" "<<amount<<" "<<value<<endl;

    }
    double toDenars()
    {
        if(strcmp(value,"EUR")==0)
        {
        return amount *EUR;
        }
        else
        {
        return amount *USD;
        }
    }


};
class Account{
private:
    Transaction**t;
    int n ;
    char account [15];
    double balance;
    public:
    Account(char *account ="", double balance=0.0)
    {
        strcpy(this->account,account);
        this->balance=balance;
        n = 0;
        t=new Transaction *[0];

    }
    Account &operator +=(Transaction *tran)
    {
    Transaction**tmp=new Transaction*[n+1];
        for(int i = 0 ; i < n ; i ++)
        {
        tmp[i]=t[i];
        }
        tmp[n]=tran;
        n++;
        delete[]t;
        t=tmp;
        return *this;
    }
    void reportInDenars()
    {
        double sum=this->balance;

        for(int i = 0 ; i < n ; i ++)
        {
        sum+=t[i]->toDenars();
        }
        cout<<"The user with account number: "<<account<<" has account balance of: "<<sum<<" MKD"<<endl;
    }

    void printTranscations()
    {
        for(int i = 0 ; i < n ; i ++)
        {
        t[i]->print();
        }
    }
};

int main () {

    Account s ("300047024112789",1500);

    int n, den, mesec, godina, tip;
    double iznos;
    char valuta [3];

    cin>>n;
    cout<<"===TRANSACTION ADDITION AND EXCEPTION HANDLING==="<<endl;
    for (int i=0;i<n;i++){
        cin>>tip>>den>>mesec>>godina>>iznos;
       // cout<<iznos<<endl;
        try{
        if (tip==2){
            cin>>valuta;
            Transaction * t = new ForeignCurrencyTransaction(den,mesec,godina,iznos,valuta);
            s+=t;
            //delete t;
        }
        else {
            Transaction * t = new DenarsTransaction(den,mesec,godina,iznos);
            s+=t;
            //delete t;
        }

    }
        catch

            (InvalidDateException &e)
            {
            e.showMessage();
            }

        catch (NotSupportedCurrencyException &e)
        {
            e.showMessage();
        }
    }
    cout<<"===TRANSACTIONS LIST==="<<endl;
    s.printTranscations();
    cout<<"===TRANSACTIONS REPORT IN DENARS==="<<endl;
    s.reportInDenars();


    cout<<"\n===CHANGE OF THE COURSE OF THE EUR AND USD===\n"<<endl;


    double newEUR, newUSD;
    cin>>newEUR>>newUSD;
   // cout<<"test"<<newEUR<<newUSD<<endl;
    Transaction::setEUR(newEUR);
    Transaction::setUSD(newUSD);
    cout<<"===TRANSACTIONS REPORT IN DENARS==="<<endl;
    s.reportInDenars();




    return 0;
}