Bank-System/Data_Fu.cpp at master · bola-nabil/Bank-System · GitHub

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//---------------------------------------------//
void write_account();
void display_sp(int n);
void modify_account(int n);
void delete_account(int n);
void deposit_withdraw(int n1, int n2);
void intro();
//---------------------------------------------//
void write_account() {
	account ac;
	ofstream outFile;
	outFile.open("account.dat", ios::binary | ios::app);
	ac.create_account();
	outFile.write(reinterpret_cast<char*> (&ac), sizeof(account));
	outFile.close();
}
void display_sp(int n) {
	account ac;
	bool flag = false;
	ifstream inFile;
	inFile.open("account.dat", ios::binary);
	if (!inFile)
	{
		cout << "File could not be open !! Press any Key...";
		return;
	}
	cout << "\nBALANCE DETAILS\n";
	while (inFile.read(reinterpret_cast<char*> (&ac), sizeof(account))) {
		if (ac.retacno() == n) {
			ac.show_account();
			flag = true;
		}
	}
	inFile.close();
	if (flag == false) cout << "\n\nAccount Number deos not Exit";
}
void modify_account(int n)
{
	bool found = false;
	account ac;
	fstream File;
	File.open("account.dat", ios::binary | ios::in | ios::out);
	if (!File)
	{
		cout << "File could not be open !! Press any Key...";
		return;
	}
	while (!File.eof() && found == false)
	{
		File.read(reinterpret_cast<char*> (&ac), sizeof(account));
		if (ac.retacno() == n)
		{
			ac.show_account();
			cout << "\n\nEnter The New Details of account" << endl;
			ac.modify();
			int pos = (-1) * static_cast<int>(sizeof(account));
			File.seekp(pos, ios::cur);
			File.write(reinterpret_cast<char*> (&ac), sizeof(account));
			cout << "\n\n\t Record Updated";
			found = true;
		}
	}
	File.close();
	if (found == false)
		cout << "\n\n Record Not Found ";
}
void delete_account(int n)
{
	account ac;
	ifstream inFile;
	ofstream outFile;
	inFile.open("account.dat", ios::binary);
	if (!inFile)
	{
		cout << "File could not be open !! Press any Key...";
		return;
	}
	outFile.open("Temp.dat", ios::binary);
	inFile.seekg(0, ios::beg);
	while (inFile.read(reinterpret_cast<char*> (&ac), sizeof(account)))
	{
		if (ac.retacno() != n)
		{
			outFile.write(reinterpret_cast<char*> (&ac), sizeof(account));
		}
	}
	inFile.close();
	outFile.close();
	remove("account.dat");
	rename("Temp.dat", "account.dat");
	cout << "\n\n\tRecord Deleted ..";
}
void deposit_withdraw(int n, int option)
{
	int amt;
	bool found = false;
	account ac;
	fstream File;
	File.open("account.dat", ios::binary | ios::in | ios::out);
	if (!File)
	{
		cout << "File could not be open !! Press any Key...";
		return;
	}
	while (!File.eof() && found == false)
	{
		File.read(reinterpret_cast<char*> (&ac), sizeof(account));
		if (ac.retacno() == n)
		{
			ac.show_account();
			if (option == 1)
			{
				cout << "\n\n\tTO DEPOSITE AMOUNT ";
				cout << "\n\nEnter The amount to be deposited";
				cin >> amt;
				ac.dep(amt);
			}
			if (option == 2)
			{
				cout << "\n\n\tTO WITHDRAW AMOUNT ";
				cout << "\n\nEnter The amount to be withdraw";
				cin >> amt;
				int bal = ac.retdeposit() - amt;
				if ((bal < 500 && ac.rettype() == 'S') || (bal < 1000 && ac.rettype() == 'C'))
					cout << "Insufficience balance";
				else
					ac.draw(amt);
			}
			int pos = (-1) * static_cast<int>(sizeof(ac));
			File.seekp(pos, ios::cur);
			File.write(reinterpret_cast<char*> (&ac), sizeof(account));
			cout << "\n\n\t Record Updated";
			found = true;
		}
	}
	File.close();
	if (found == false)
		cout << "\n\n Record Not Found ";
}
void intro() {
	cout << "******************************************************\n";
	cout << "                Hello In Bank System              \n";
	cout << "******************************************************\n";
	cin.get();
}