/**************************UPDATED SOFTWARE FOR PUNJAB BANK**********/
/**************************BY MUHAMMAD AWAIS RAZA*******************/
#include <iostream.h>
#include <fstream.h>
#include <process.h>
#include <string.h>
#include <stdio.h>
#include <ctype.h>
#include <conio.h>
#include <dos.h>
#include <stdlib.h>
#include <iomanip.h>
#include <graphics.h>


typedef char option[15];
const int ROW = 10,COL = 10;

int scan;	// To hold the special characters for moving the prompt in menu
int ascii;

// To display the main menu options
option a[]= {
			  "NewAccount",
			 "ListofAccounts",
			 "IndAccount",
			 "DailyTrans",
			 "MonthlyReport",
			 "EditAccount",
			 "Exit"};

// Displays the modify menu options
option b[] = {
				"Modify Account",
				"Closeaccount",
				"Quit"
			};

// Function used to do screening
class main_menu
{
	int i,done;

	public:
		void normalvideo(int x,int y,char *str);
		void reversevideo(int x,int y,char *str);
		void box(int x1,int y1,int x2,int y2);
		char menu();
		void control_menu();
		char e_menu();
		void edit_menu();
		void help(void);
};

/* Class member functions for drawing boxes */
class shape
{
	public:
		void line_hor(int, int, int, char);
		void line_ver(int, int, int, char);
		void box(int, int, int, int, char);
};


// Class contains the initial deposit of customers
class initial
{
	public:
		void add_to_file(int, char t_name[30], char t_address[30], float);	// For initial deposits in customers account
		void display_list(void); // Displaying customers account list
		void delete_account(int); // Deleting customers account
		void update_balance(int, char t_name[30], char t_address[30], float); // For updating the customer account
		void modify(void);   	// To modify the customer account information
		int last_accno(void); // To know the last account number
		int found_account(int); // To found the account is in "INITIAL.dat" or not

		char *return_name(int); // Function for validation entry of customer name
		char *return_address(int); // Function for validation entry of customer address
		float give_balance(int); // To print the balance amount of a particular customer
		int recordno(int);
		void display(int); // To display the customer account

	private:
		void modify_account(int, char t_name[30], char t_address[30]);	// Function to modify the customer account
		int accno;
		char name[30], address[30];
		float balance;
};

// Class contains the customers daily transaction entry

class account
{
	public:
		void new_account(void);  // Function to create a new account
		void close_account(void);	// Function to close an account
		void display_account(void); // Function to display the accounts
		void transaction(void); // To display the transaction process
		void clear(int, int); // Function to perform a clear screen function
		void month_report(void); // Function to list monthWise transaction report

	private:
		void add_to_file(int, int, int, int, char, char t_type[10], float, float, float); // Function to add transaction records
		void delete_account(int); // Function to delete a transaction record
		int no_of_days(int, int, int, int, int, int); // Function to find the total days
		float calculate_interest(int, float); // Function for calculating interest of an account
		void display(int); // Function to display a transaction account
		void box_for_display(int); // Function for displaying box
		int accno;
		char type[10];	// Account type as Cheque or Cash
		int dd, mm, yy; // To store the system date/ Enter date
		char tran;			// As the account type is Deposit or Withdraw
		float interest, amount, balance;
};

// Function to displays all the menu prompt messages from the pointer array of option a[]
void main_menu::normalvideo(int x,int y,char *str)
{
   gotoxy(x,y);
   cprintf("%s",str);
}

// Function to move the cursor on the menu prompt with a reverse video color
void main_menu::reversevideo(int x,int y,char *str)
{
	textcolor(5+143);
	textbackground(WHITE);
	gotoxy(x,y);
	cprintf("%s",str);
	textcolor(GREEN);
	textbackground(BLACK);
}

void main_menu::box(int x1,int y1,int x2,int y2)
{
	 for(int col=x1;col<x2;col++)
	 {
		   gotoxy(col,y1);
		   cprintf("%c",196);
		   gotoxy(col,y2);
		   cprintf("%c",196);
	 }

	 for(int row=y1;row<y2;row++)
	 {
		   gotoxy(x1,row);
		   cprintf("%c",179);
		   gotoxy(x2,row);
		   cprintf("%c",179);
	 }
	 gotoxy(x1,y1);
	 cprintf("%c",218);
	 gotoxy(x1,y2);
	 cprintf("%c",192);
	 gotoxy(x2,y1);
	 cprintf("%c",191);
	 gotoxy(x2,y2);
	 cprintf("%c",217);
}

char main_menu::menu()
{
	clrscr();

	textcolor(22);
	box(20, 6, 65, 20);
	box(18, 4, 67, 22);
	textcolor(5+143);
	gotoxy(25, 5);
	textbackground(BLUE);
	cprintf("B A N K I N G   M A N A G E M E N  T");
	textbackground(BLACK);
	textcolor(22);
	for(i = 1; i < 7; i++)
	normalvideo(32, i+10, a[i]);
	reversevideo(32, 10, a[0]);
	i = done = 0;
	_setcursortype(_NOCURSOR);
	do
	{
		int key = getch();
		switch (key)
		{
			case 00:
				key = getch();
				switch (key)
				{
					case 72:
						normalvideo(32, i+10, a[i]);
						i--;
						if (i == -1)
							i = 6;
						reversevideo(32,i+10,a[i]);
						break;
					case 80:
						normalvideo(32, i+10, a[i]);
						i++;
						if (i == 7)
							i = 0;
						reversevideo(32, i+10, a[i]);
						break;
				}
				break;
			case 13:
				done = 1;
		}
	}
	while (!done);
	_setcursortype(_NOCURSOR);
	return(i+49);
}

/* The function main_menu() is used to display the main menu of banking system */
void main_menu::control_menu()
{

	char choice;
	account a;

	do
	{
		choice = menu();
		clrscr();
		switch (choice)
		{
			case '1':
				_setcursortype(_NORMALCURSOR);
				box(3, 1, 75, 24);
				box(5, 2, 73, 23);

				a.new_account(); // New account member function
				break;
			case '2':
				box(3, 1, 75, 24);
				box(5, 2, 73, 23);
				initial ini;
				ini.display_list(); // Glogal list of account function
				break;
			case '3':
				box(3, 1, 75, 24);
				box(5, 2, 73, 23);

				 _setcursortype(_NORMALCURSOR);
				a.display_account(); // Displaying individual accounts all transactions
				break;
			case '4':
				box(3, 1, 75, 24);
				box(5, 2, 73, 23);

				account a;
				_setcursortype(_NORMALCURSOR);
				a.transaction(); // Daily transaction for individual account
				 break;
			case '5':
				box(3, 1, 75, 24);
				box(5, 2, 73, 23);

				_setcursortype(_NORMALCURSOR);
				a.month_report(); // Monthly report for any account
				break;
			case '6':
				box(3, 1, 75, 24);
				box(5, 2, 73, 23);
				gotoxy(10,10);
				edit_menu(); // Sub menu for modifying or deleting any account
				break;
			case '7' :exit(0);
		   }
	  } while (choice != 6);
}

/* This function is used to return the cursor position to the edit menu function where the
menu prompt will valid */

char main_menu::e_menu()
{
	clrscr();

	textcolor(22);
	box(25,6,60,15);
	box(23,4,62,17);
	textcolor(5+143);

	gotoxy(34,5);
	textbackground(GREEN);
	cprintf("E D I T  -  M E N U");
	textcolor(22);
	textbackground(BLACK);
	for (i = 1;i < 3; i++)
		normalvideo(32, i+10, b[i]);

	reversevideo(32, 10, b[0]);
	i = done = 0;

	_setcursortype(_NOCURSOR);
	do
	{
		int key = getch();
		switch (key)
		{
			case 00:
				key = getch();
				switch (key)
				{
					case 72:
						normalvideo(32, i+10, b[i]);
						i--;
						if (i == -1)
							i = 2;
						reversevideo(32, i+10, b[i]);
						break;
					case 80:
						normalvideo(32, i+10, b[i]);
						i++;
						if (i == 3)
							i=0;
						reversevideo(32, i+10, b[i]);
						break;
				}
				break;
			case 13:
				done = 1;
		}
	}
	while (!done);
	_setcursortype(_NOCURSOR);
	return(i+49);
}

/* Function for edit menu with account modification and close */
void main_menu::edit_menu()
{

	char choice;
	account a;

	do
	{
		choice = e_menu();
		clrscr();
		switch (choice)
		{
			case '1':
				box(3, 1, 75, 24);
				box(5, 2, 73, 23);
				initial ini;
				_setcursortype(_NORMALCURSOR);
				ini.modify();
				break;

			case '2':
				box(3, 1, 75, 24);
				box(5, 2, 73, 23);
				account a;
				_setcursortype(_NORMALCURSOR);
				a.close_account();
				break;
			case '3':
				return;
		}
	} while (choice != 6);
}

/* Function to draw horizontal line */
void shape::line_hor(int column1, int column2, int row, char c)
{
	for (column1; column1 <= column2; column1++)
	{
		gotoxy(column1, row);
		cout << c;
	}
}

/* Function to draw vertical line */
void shape::line_ver(int row1, int row2, int column, char c)
{
	for (row1; row1 <= row2; row1++)
	{
		gotoxy(column, row1);
		cout << c;
	}
}

/* Function for drawing box */
void shape::box(int column1, int row1, int column2, int row2, char c)
{
	char ch = 218;
	char c1, c2, c3, c4;
	char l1 = 196, l2 = 179;
	if (c == ch)
	{
		c1 = 218;
		c2 = 191;
		c3 = 217;
		c4 = 217;
		l1 = 196;
		l2 = 179;
	}
	else
	{
		c1 = c;
		c2 = c;
		c3 = c;
		c4 = c;
		l1 = c;
		c2 = c;
	}
	gotoxy(column1, row1);
	cout << c1;
	gotoxy(column2, row1);
	cout << c2;
	gotoxy(column1, row2);
	cout << c3;
	gotoxy(column2, row2);
	cout << c4;
	column1++;
	column2--;
	line_hor(column1, column2, row1, l1); //Horizontal line
	line_hor(column1, column2, row2, l1);
	column1--;
	column2++;
	row1++;
	row2--;
	line_ver(row1, row2, column1, l2); // Vertical line
	line_ver(row1, row2, column2, l2);
}


/* Function to display help about this project */
void main_menu::help(void)
{
	clrscr();

	setbkcolor(7);
	settextstyle(7,HORIZ_DIR,5);
	outtextxy(70,20,"Welcome to Banking Project");
	settextstyle(2,HORIZ_DIR,5);
	outtextxy(60,100, "This project your can keep record of daily banking transaction");
	delay(2);
	outtextxy(60,130, "This program is capable of holding any no. of account.");
	delay(2);
	outtextxy(60,160, "-In first option you can open new account");
	delay(2);
	outtextxy(60,190, "-In second option you can see the list of all the accounts");
	delay(2);
	outtextxy(60,220,"-In third option you can see all the transaction of individual account");
	delay(2);
	outtextxy(60,250, "-Through fourth optiion you can do banking transactions");
	delay(2);
	outtextxy(60,280, "(Deposit/Withdraw)");
	delay(2);
	outtextxy(60,310, "-In fifth option you can take monthWise individual account report");
	delay(2);
	outtextxy(60,340,"-In sixth option you can modify or delete any account");
	delay(2);
	outtextxy(60,370, "Note-: Opening amount should not less that Rs. 500/-");
	delay(2);
	outtextxy(60,400, "-And last option is Quit (Exit to Window)");
	delay(2);

	settextstyle(7,HORIZ_DIR,4);
	outtextxy(80,420,"Press any key to continue...");
	getch();

}

/* Function for modifying the existing accounts */
void initial::modify(void)
{
	clrscr();
	int j;
	char t_acc[10];
	int t, t_accno;
	gotoxy(17, 1);
	cout << "<0>=Exit";
	gotoxy(5,5);
	cout << "Enter the account no. ";
	gets(t_acc);
	t = atoi(t_acc);
	t_accno = t;
	if (t_accno == 0)
		return;
	clrscr();
	if (!found_account(t_accno))
	{
		gotoxy(5, 5);
		cout << "\7Account not found";
		getch();
		return;
	}
	gotoxy(71, 1);
	cout << "<0>=Exit";
	textbackground(WHITE);
	gotoxy(3, 3);
	for (j = 1; j<= 76; j++)
		cprintf(" ");
	textbackground(BLACK);
	textcolor(BLACK+BLINK);
	textbackground(WHITE);
	gotoxy(30, 3);
	cprintf("Modify Account Screen");
	textcolor(LIGHTGRAY);
	textbackground(BLACK);
	int d1, m1, y1;
	struct date d;		// For extracting system date
	getdate(&d);
	d1 = d.da_day;
	m1 = d.da_mon;
	y1 = d.da_year;
	gotoxy(4, 2);
	cout << "Date: " << d1 << "/" << m1 << "/" << y1;
	char ch;
	display(t_accno);
	account a;
	do
	{
		a.clear(5, 13);
		gotoxy(5, 13);
		cout << "Modify this account <y/n>: ";
		ch = getche();
		if (ch == '0')
			return;
		ch = toupper(ch);
	}while (ch != 'N' && ch != 'Y');
	if (ch == 'N')
		return;
	int modified = 0, valid;
	char t_name[30], t_address[30];
	gotoxy(5, 15);
	cout << "Name : ";
	gotoxy(5, 16);
	cout << "Address : ";

	do
	{
		a.clear(15, 15);
		a.clear(5, 23);
		gotoxy(5, 23);
		cout << "Enter Name or Press Enter for No Change";
		valid = 1;
		gotoxy(15, 15);
		gets(t_name);
		strupr(t_name);
		if (t_name[0] == '0')
			return;
		if (strlen(t_name) > 25)
		{
			valid = 0;
			gotoxy(5, 23);
			cprintf("\7Name should not greater than 25");
			getch();
		}
	} while (!valid);

	do
	{
		a.clear(15, 16);
		a.clear(5, 23);
		gotoxy(5, 23);
		cout << "Enter Address or press enter for no Change";
		valid = 1;
		gotoxy(15, 16);
		gets(t_address);
		strupr(t_address);
		if (t_address[0] == '0')
			return;
		if (strlen(t_address) > 25)
		{
			valid = 0;
			gotoxy(5, 23);
			cprintf("\7Address should not greater than 25");
			getch();
		}
	}while (!valid);

	if (strlen(t_address) > 0)
		modified = 1;
	if (!modified)
		return;
	// clears the screen at 23rd row and from 5th column
	a.clear(5,23);

	do
	{
		a.clear(5, 23);
		gotoxy(5, 18);
		cout << "Do you want to save Changes <Y/N>: ";
		ch = getche();
		if (ch == '0')
			return;
		ch = toupper(ch);
	}while (ch != 'N' && ch != 'Y');

	if (ch == 'N')
		return;

	// Passes the parameter to add in data file
	modify_account(t_accno, t_name, t_address);
	gotoxy(5, 21);
	cout << "\7Record modified";
	gotoxy(5, 23);
	cout << "Press any key to continue...";
	getch();
}

/* Function for displaying an account when modified */
void initial::display(int t_accno)
{
	fstream file;
	file.open("INITIAL.dat", ios::in);
	file.seekg(0, ios::beg);

	// Displays the record contents matching with t_accno from INITIAL.dat data file
	while (file.read((char *)this, sizeof(initial)))
	{
		if (t_accno == accno)
		{
			gotoxy(8, 5);
			cout << "Account no. " << accno;
			gotoxy(10, 8);
			cout << "Name : ";
			puts(name);
			gotoxy(10, 9);
			cout << "Address : ";
			puts(address);
			gotoxy(10, 10);
			cout << "Balance : " << setw(15)    // setwidth
						<< setprecision(2)    // set position of decimal point
						<< setiosflags(ios::left)   // set left justified output
						<< setiosflags(ios::showpoint)  // always show decimal point
						<< setiosflags(ios::fixed)    // set fixed notation for display
						<< balance;
			break;
		}
	}
	file.close();
}

/* Function for updating the modified account into INITIAL.dat file */
void initial::modify_account(int t_accno, char t_name[30], char t_address[30])
{
	int recno;
	recno = recordno(t_accno);
	fstream file;
	file.open("INITIAL.dat", ios::out|ios::ate);
	strcpy(name, t_name);
	strcpy(address, t_address);
	int location;
	// finds the position in data file

	location = (recno-1) * sizeof(initial);
	file.seekp(location);

	// Overwrites the modified record into INITIAL.dat data file
	file.write((char *)this, sizeof(initial));
	file.close();
	return;
}

/* Function to find the last account number */
int initial::last_accno(void)
{
	fstream file;
	file.open("INITIAL.dat", ios::in);
	file.seekg(0, ios::beg);
	int count = 0;

	// Founds the last account no.
	while (file.read((char *)this, sizeof(initial)))
		count = accno;
	file.close();
	return count;
}

/* This function add_to_file() is used to create new/fresh record in the data file */
void initial::add_to_file(int t_accno, char t_name[30], char t_address[30], float t_balance)
{
	accno = t_accno;
	strcpy(name, t_name);
	strcpy(address, t_address);
	balance = t_balance;
	fstream file;

	// Appends new account record with the balance into INITIAL.dat data file
	file.open("INITIAL.dat", ios::out|ios::app);
	file.write((char *)this, sizeof(initial));
	file.close();
}

// Function for deleting a account from INITIAL.dat file
void initial::delete_account(int t_accno)
{
	fstream file;
	file.open("INITIAL.dat", ios::in);
	fstream temp;
	temp.open("TEMP.dat", ios::out);
	file.seekg(0,ios::beg);

	// Uses a copy method to delete the account from INTITAL.dat data file
	while (!file.eof())
	{
		file.read((char *)this, sizeof(initial));
		if (file.eof())
			break;
		if (accno != t_accno)
			temp.write((char *)this, sizeof(initial));
	}
	file.close();
	temp.close();
	file.open("INITIAL.dat", ios::out);
	temp.open("TEMP.dat", ios::in);
	temp.seekg(0, ios::beg);

	// Copy the TEMP.dat contents into INTITAL.dat data file
	while (!temp.eof())
	{
		temp.read((char *)this, sizeof(initial));
		if (temp.eof())
			break;
		if (accno != t_accno)
			file.write((char *)this, sizeof(initial));
	}
	file.close();
	temp.close();
}

/* Function for add an account details of daily tranaction into BANKING.dat file. */
void account::add_to_file(int t_accno, int d1, int m1, int y1, char t_tran, char t_type[10], float t_interest, float t_amount, float t_balance)
{
	fstream file;
	file.open("BANKING.dat", ios::app);
	accno = t_accno;
	getch();
	dd = d1;
	mm = m1;
	yy = y1;
	tran = t_tran;
	strcpy(type, t_type);
	interest = t_interest;
	amount = t_amount;
	balance = t_balance;

	// Appends the transaction record into BANKING.dat data file
	file.write((char *)this, sizeof(account));
	file.close();
}

/* Function for deleting an account from BANKING.dat file. */
void account::delete_account(int t_accno)
{
	fstream file;
	file.open("BANKING.dat", ios::in); // Open to read records
	fstream temp;
	temp.open("TEMP.dat", ios::out); // Open to write records
	file.seekg(0, ios::beg);	// Positioned from begining of the file

	// Uses the copy method for deleting the transaction record from BANKING.dat data file
	while (!file.eof())
	{
		file.read((char *)this, sizeof(account));
		if (file.eof())
			break;
		if (accno != t_accno)
			temp.write((char *)this, sizeof(account));
	}
	file.close();
	temp.close();
	file.open("BANKING.dat", ios::out);
	temp.open("TEMP.dat", ios::in);
	temp.seekg(0, ios::beg);

	// Uses copy method to transfer the record from TEMP.dat file to BANKING.dat data file
	while (!temp.eof())
	{
		temp.read((char *)this, sizeof(account));
		if (temp.eof())
			break;
		if (accno != t_accno)
			file.write((char *)this, sizeof(account));
	}
	file.close();
	temp.close();
}

/* Function for displaying an account from "INITIAL.dat". */
void initial::display_list(void)
{
	clrscr();
	int flag;
	float t_bal = 0.0;
	fstream file;
	gotoxy(25,2);

	cout << "Accounts List in Bank";
	gotoxy(25, 3);
	cout << "=====================";
	int d1, m1, y1;
	struct date d;		// For extracting system date
	getdate(&d);
	d1 = d.da_day;
	m1 = d.da_mon;
	y1 = d.da_year;
	gotoxy(62, 3);
	cout << "Date: " << d1 << "/" << m1 << "/" << y1;
	gotoxy(1, 4);
	for (int j = 1; j <= 79; j++)
		cout << "=";

	gotoxy(1, 5);
	cout << "Accno#";
	gotoxy(10,5);
	cout << "Name";
	gotoxy(30,5);
	cout << "Address";
	gotoxy(65,5);
	cout << "Balance";
	gotoxy(1, 6);
	for (j = 1; j <= 79; j++)
		cout << "=";
	file.open("INITIAL.dat", ios::in);
	file.seekg(0,ios::beg);
	int row = 7;

	// Reads all the records to display on the screen
	while (file.read((char *)this, sizeof(initial)))
	{
		flag = 0;
		delay(2);
		gotoxy(3, row);
		cout << accno;
		gotoxy(10, row);
		puts(name);
		gotoxy(30, row);
		puts(address);
		gotoxy(65, row);

		cout <<  setw(15)
			<< setprecision(2)
			<< setiosflags(ios::left)
			<< setiosflags(ios::showpoint)
			<< setiosflags(ios::fixed)
			<< balance;
		t_bal = t_bal + balance;
		row++;
		if (row > 23)
		{
			flag = 1;
			row = 6;
			gotoxy(4, 24);
			cout << "Press any key to continue.... ";
			getch();
			clrscr();
		}
	}

	gotoxy(1, row);
	for (j = 1; j <= 79; j++)
		cout << "=";
	row++;
	gotoxy(3, row);
	cout << "Total Balance in Bank is : ";
	gotoxy(65, row);

	cout << setw(15)
		<< setprecision(2)
		<< setiosflags(ios::left)
		<< setiosflags(ios::showpoint)
		<< setiosflags(ios::fixed)
		<< t_bal;

	file.close();
	if (!flag)
	{
		gotoxy(4, 24);
		cout << "Press any key to continue...";
		getch();
	}
}

/* Function for clearing specified row and column. */
void account::clear(int col, int row)
{
	for (int j = col; j <= 79; j++)
	{
		gotoxy(j, row);
		cout << " ";
	}
}

/* Function to found an account for display account function. */
int initial::found_account(int t_accno)
{
	fstream file;
	file.open("INITIAL.dat", ios::in);
	file.seekg(0, ios::beg);
	int found = 0;

	// Searches the specified record in INITIAL.dat data file
	while (file.read((char *)this, sizeof(initial)))
	{
		if (accno == t_accno)
		{
			found = 1;
			break;
		}
	}
	file.close();
	return found;
}

/* Function for return name of the account holder from INITIAL.dat. */
char *initial::return_name(int t_accno)
{
	fstream file;
	file.open("INITIAL.dat", ios::in);
	file.seekg(0, ios::beg);
	char t_name[30];

	// Return the name to display at report screen if found
	while (file.read((char *)this, sizeof(initial)))
	{
		if (accno == t_accno)
		{
			strcpy(t_name, name);
			break;
		}
	}
	file.close();
	return t_name;
}

/* Function for return address of the account holder from INITIAL.dat. */
char *initial::return_address(int t_accno)
{
	fstream file;
	file.open("INITIAL.dat", ios::in);
	file.seekg(0, ios::beg);
	char t_address[30];

	// Return the address to display at report screen if found
	while (file.read((char *)this, sizeof(initial)))
	{
		if (accno == t_accno)
		{
			strcpy(t_address, address);
			break;
		}
	}
	file.close();
	return t_address;
}

/* Function for display account details */
void account::box_for_display(int t_accno)
{
	int d1, m1, y1;
	struct date d;
	getdate(&d);
	d1 = d.da_day;
	m1 = d.da_mon;
	y1 = d.da_year;
	gotoxy(63, 2);
	cout << "Date: " << d1 << "/" << m1 << "/" << y1;
	gotoxy(4, 2);
	cout << "Account No. " << t_accno;

	initial ini;

	char t_name[30];
	strcpy(t_name, ini.return_name(t_accno));

	char t_address[30];
	strcpy(t_address, ini.return_address(t_accno));

	gotoxy(25, 2);
	cout << t_name;
	gotoxy(25, 3);
	cout << t_address;
	gotoxy(4, 5);
	cout << "Global Report of Account";
	textbackground(WHITE);
	textcolor(BLACK);
	textbackground(WHITE);
	gotoxy(1, 6);
	for (int i = 1; i <=79; i++)
		cout << "=";
	gotoxy(4, 7);
	cprintf("Date       Particular   Deposit      Withdraw                Balance");
	gotoxy(1, 8);
	for (i = 1; i <=79; i++)
		cout << "=";
	textcolor(LIGHTGRAY);
	textbackground(BLACK);
}

/* Function for display an account from BANKING.dat file. */
void account::display_account(void)
{
	clrscr();
	char t_acc[10];
	int j;
	int tamt = 0, damt = 0, wamt = 0;
	int t, t_accno;
	gotoxy(71, 1);
	cout << "<0>=Exit";
	gotoxy(5, 5);
	cout << "Enter account no. ";
	gets(t_acc);
	t = atoi(t_acc);
	t_accno = t;
	if (t_accno == 0)
		return;
	clrscr();
	initial ini;
	if (!ini.found_account(t_accno))
	{
		gotoxy(5, 5);
		cout << "\7Account not found";
		getch();
		return;
	}

	// Display the heading from this function
	box_for_display(t_accno);

	int row = 9, flag;
	fstream file;
	file.open("BANKING.dat", ios::in);
	while (file.read((char *)this, sizeof(account)))
	{
		if (accno == t_accno)
		{
			flag = 0;
			delay(2);
			gotoxy(4, row);
			cout << dd << "-" << mm << "-" << yy;
			gotoxy(16, row);
			puts(type);
			if (tran == 'D')
			{
				damt = damt + amount;
				tamt = tamt + amount;
				gotoxy(30, row);
			}
			else
			{
				wamt = wamt + amount;
				tamt = tamt - amount;
				gotoxy(42, row);
			}

			cout <<  setw(15)
				<< setprecision(2)
				<< setiosflags(ios::left)
				<< setiosflags(ios::showpoint)
				<< setiosflags(ios::fixed)
				<< amount;

			gotoxy(66, row);
			cout << setw(15)
				<< setprecision(2)
				<< setiosflags(ios::left)
				<< setiosflags(ios::showpoint)
				<< setiosflags(ios::fixed)
				<< balance;

			row++;
			if (row > 23)
			{
				flag = 1;
				row = 7;
				gotoxy(4, 24);
				cout << "Press any key to continue";
				getch();
				clrscr();
				box_for_display(t_accno);
			}
		}
	}
	file.close();
	gotoxy(1, row);
	for (j = 1; j <= 79; j++)
		cout << "=";
	row++;
	gotoxy(4, row);
	cout << "Total-->:";
	gotoxy(30, row);
	cout << setw(15)
				<< setprecision(2)
				<< setiosflags(ios::left)
				<< setiosflags(ios::showpoint)
				<< setiosflags(ios::fixed)
				<< damt;
	gotoxy(42, row);
	cout << setw(15)
			<< setprecision(2)
			<< setiosflags(ios::left)
			<< setiosflags(ios::showpoint)
			<< setiosflags(ios::fixed)
			<< wamt;
	gotoxy(66, row);
	cout << setw(15)
			<< setprecision(2)
			<< setiosflags(ios::left)
			<< setiosflags(ios::showpoint)
			<< setiosflags(ios::fixed)
			<< tamt;
	if (!flag)
	{
		gotoxy(4, 24);
		cout << "Press any key to continue...";
		getch();
	}
}

/* Function to list monthWise transaction report. */
void account::month_report(void)
{

	int dd1, mm1, yy1;
	clrscr();
	gotoxy(10, 5);
	cout << "Enter any date of a month ";
	gotoxy(38, 5);
	cin >> dd1;
	gotoxy(40, 5);
	cout << "-";
	gotoxy(41, 5);
	cin >> mm1;
	gotoxy(43, 5);
	cout << "-";
	gotoxy(44, 5);
	cin >> yy1;
	clrscr();
	char t_acc[10];
	int j;
	int tamt = 0, damt = 0, wamt = 0;
	int t, t_accno;
	gotoxy(71, 1);
	cout << "<0>=Exit";
	gotoxy(5, 5);
	cout << "Enter account no. ";
	gets(t_acc);
	t = atoi(t_acc);
	t_accno = t;
	if (t_accno == 0)
		return;
	clrscr();
	initial ini;
	if (!ini.found_account(t_accno))
	{
		gotoxy(5, 5);
		cout << "\7Account not found";
		getch();
		return;
	}
	box_for_display(t_accno);
	gotoxy(4, 5);
	cout << "Statement Month: " << dd1 << "/" << mm1 << "/" << yy1;
	getch();

	int row = 9, flag;
	fstream file;
	file.open("BANKING.dat", ios::in);
	float pre_balance = 0.0; // Previous balance amount

	// The loop finds the last months balance
	while (file.read((char *)this, sizeof(account)))
	{
		// Checks the account no. and till the previous month and till current year
		if ((accno == t_accno) && ((mm < mm1 && yy <= yy1) || (mm1 < mm && yy < yy1)))
		{
			pre_balance = balance;
		}
	}

	file.close();
	file.open("BANKING.dat", ios::in);
	gotoxy(54, row);

	cout << "B/F ....    " << setw(15)
				<< setprecision(2)
				<< setiosflags(ios::left)
				<< setiosflags(ios::showpoint)
				<< setiosflags(ios::fixed)
				<< pre_balance;
	row++;

	// The loop displays the current months transaction after previous month
	while (file.read((char *)this, sizeof(account)))
	{
		if ((accno == t_accno) && (mm1 == mm && yy1 <= yy))
		{
			flag = 0;
			delay(2);
			gotoxy(4, row);
			cout << dd << "-" << mm << "-" << yy;
			gotoxy(16, row);
			puts(type);
			if (tran == 'D')
			{
				damt = damt + amount;
				tamt = tamt + amount;
				gotoxy(30, row);
			}
			else
			{
				wamt = wamt + amount;
				tamt = tamt - amount;
				gotoxy(42, row);
			}

			cout <<  setw(15)
				<< setprecision(2)
				<< setiosflags(ios::left)
				<< setiosflags(ios::showpoint)
				<< setiosflags(ios::fixed)
				<< amount;

			gotoxy(66, row);
			cout << setw(15)
				<< setprecision(2)
				<< setiosflags(ios::left)
				<< setiosflags(ios::showpoint)
				<< setiosflags(ios::fixed)
				<< balance;
			row++;

			// If row increases 23 then the next screen continues
			if (row > 23)
			{
				flag = 1;
				row = 7;
				gotoxy(4, 24);
				cout << "Press any key to continue";
				getch();
				clrscr();
				box_for_display(t_accno);
			}
		}
	}
	file.close();
	gotoxy(1, row);
	for (j = 1; j <= 79; j++)
		cout << "=";
	row++;

	gotoxy(4, row);
	cout << "Total-->:";
	gotoxy(30, row);

	// Deposited amount
	cout << setw(15)    // setwidth
		<< setprecision(2)    // set position of decimal point
		<< setiosflags(ios::left)   // set left justified output
		<< setiosflags(ios::showpoint)  // always show decimal point
		<< setiosflags(ios::fixed)    // set fixed notation for display
		<< damt;

	gotoxy(42, row);
	// Withdraw amount
	cout << setw(15)
		<< setprecision(2)
		<< setiosflags(ios::left)
		<< setiosflags(ios::showpoint)
		<< setiosflags(ios::fixed)
		<< wamt;

	gotoxy(66, row);
	tamt = tamt + pre_balance;
	// Balance amount
	cout << setw(15)
		<< setprecision(2)
		<< setiosflags(ios::left)
		<< setiosflags(ios::showpoint)
		<< setiosflags(ios::fixed)
		<< tamt;

	if (!flag)
	{
		gotoxy(4, 24);
		cout << "Press any key to continue...";
		getch();
	}

}

/* Function for creating new account for new customer. */
void account::new_account(void)
{
	char ch;
	int i, valid;
	clrscr();
	initial ini;

	shape s;
	s.box(2, 1, 79, 25, 218);
	s.box(25, 2, 54, 4, 219);

	gotoxy(65, 2);
	cout << "<0>=Exit";
	gotoxy(3,3);
	for (i = 1; i<= 76; i++)
		cprintf(" ");
	textbackground(BLACK);
	textcolor(BLACK+BLINK);
	textbackground(WHITE);
	gotoxy(30, 3);
	cprintf("Open New Account");
	textcolor(LIGHTGRAY);
	textbackground(BLACK);
	int d1, m1, y1;
	struct date d;		// For extracting system date
	getdate(&d);
	d1 = d.da_day;
	m1 = d.da_mon;
	y1 = d.da_year;
	int t_accno;
	t_accno = ini.last_accno();
	t_accno++;

	// Appends and deletes a false record to create primary position in data files
	if (t_accno == 1)
	{
		ini.add_to_file(t_accno, "abc", "xyz", 1.1);
		ini.delete_account(t_accno);
		cout << "Prese xxxxxxx";
		getch();
		add_to_file(t_accno, 1, 1, 1997, 'D', "INITIAL", 1.1, 1.1, 1.1);
		delete_account(t_accno);
	}
	char t_name[30], t[10], t_address[30];
	float t_bal = 0.0, t_balance = 0.0;
	gotoxy(5, 6);
	cout << "Date: " << d1 << '/' << m1 << '/' << y1;
	gotoxy(5, 8);
	cout << "Account No # " << t_accno;
	gotoxy(5, 10);
	cout << "Name : ";
	gotoxy(5, 11);
	cout << "Address : ";
	gotoxy(5, 12);
	cout << "Name of verifying Person : ";
	gotoxy(5, 14);
	cout << "Initial Deposit : ";

	do
	{
		clear(15, 10);
		clear(5, 23);
		gotoxy(5, 23);
		cout << "Enter Name of the Person";
		valid = 1;
		gotoxy(15, 10);
		gets(t_name);
		strupr(t_name);
		if (t_name[0] == '0')
			return;
		if (strlen(t_name) == 0 || strlen(t_name) > 25)
		{
			valid = 0;
			gotoxy(5, 23);
			cprintf("\7Name should not greater than 25");
			getch();
		}
	}while (!valid);

	do
	{
		clear(25, 15);
		clear(5, 23);
		gotoxy(5, 23);
		cout << "Enter Address of the Person ";
		valid = 1;
		gotoxy(15, 11);
		gets(t_address);
		strupr(t_address);
		if (t_address[0] == '0')
			return;
		if (strlen(t_address) == 0 || strlen(t_address) > 25)
		{
			valid = 0;
			gotoxy(5, 23);
			cprintf("\7Address should not greater than 25");
			getch();
		}
	}while (!valid);

	do
	{
		char vari[30];
		clear(13, 12);
		clear(5, 23);
		gotoxy(5, 23);
		cout << "Enter name of the varifying Person ";
		valid = 1;
		gotoxy(31, 12);
		gets(vari);
		strupr(vari);
		if (vari[0] == '0')
			return;
		if (strlen(vari) == 0 || strlen(vari) > 25)
		{
			valid = 0;
			gotoxy(5, 23);
			cprintf("Should not blank or greater than 25");
			getch();
		}
	}while (!valid);

	do
	{
		clear(13, 12);
		clear(5, 23);
		gotoxy(5, 23);
		cout << "Enter initial amount to be deposit ";
		valid = 1;
		gotoxy(23, 14);
		gets(t);
		t_bal = atof(t);
		t_balance = t_bal;
		if (t[0] == '0')
		{
			valid = 0;
			gotoxy(5, 23);
			cprintf("\7Should not less than 500");
			getch();
		}
	}while (!valid);
	clear(5, 23);

	do
	{
		clear(5, 17);
		valid = 1;
		gotoxy(5, 17);
		cout << "Do you want to save the record <Y/N>: ";
		ch = getche();
		if (ch == '0')
			return;
		ch = toupper(ch);
	}while (ch != 'N' && ch != 'Y');

	if (ch == 'N')
		return;
	float t_amount, t_interest;
	t_amount = t_balance;
	t_interest = 0.0;
	char t_tran, t_type[10];
	t_tran = 'D';
	strcpy(t_type, "INITIAL");

	// Appends the records contents into both INITIAL.dat and BANKING.dat data files
	ini.add_to_file(t_accno, t_name, t_address, t_balance);
	add_to_file(t_accno, d1, m1, y1, t_tran, t_type, t_interest, t_amount, t_balance);
}

/* Function for returning balance amount of an account. */
float initial::give_balance(int t_accno)
{
	fstream file;
	file.open("INITIAL.dat", ios::in);
	file.seekg(0, ios::beg);
	float t_balance;

	// Gives the last balance of an individual account
	while (file.read((char *)this, sizeof(initial)))
	{
		if (accno == t_accno)
		{
			t_balance = balance;
			break;
		}
	}
	file.close();
	return t_balance;
}

/* Function for returning the record no. for updating balance */
int initial::recordno(int t_accno)
{
	fstream file;
	file.open("INITIAL.dat", ios::in);
	file.seekg(0, ios::beg);
	int count = 0;

	// Finds the record position in INITIAL.dat data file
	while (file.read((char *)this, sizeof(initial)))
	{
		count++;
		if (t_accno == accno)
			break;
	}
	file.close();
	return count;
}

/* Function for updating the balance for the given account no. */
void initial::update_balance(int t_accno, char t_name[30], char t_address[30], float t_balance)
{
	int recno;
	recno = recordno(t_accno);
	fstream file;
	file.open("INITIAL.dat", ios::out|ios::ate);
	strcpy(name, t_name);
	strcpy(address, t_address);
	balance = t_balance;
	int location;
	location = (recno-1) * sizeof(initial); // Find the location in file
	file.seekp(location);	// Searches the insertion position in data file

	// Updates the balance amount in INITIAL.dat data file
	file.write((char *)this, sizeof(initial));
	file.close();
}

/* Function to return no. days between two dates. */
int account::no_of_days(int d1, int m1, int y1, int d2, int m2, int y2)
{
	static int month[] = {31, 28, 31, 30, 31, 30, 31, 30, 31, 30, 31, 30};
	int days = 0;
	while (d1 != d2 || m1 != m2 || y1 != y2)
	{
		days++;
		d1++;
		if (d1 > month[m1-1])
		{
			d1 = 1;
			m1++;
		}
		if (m1 > m2)
		{
			m1 = 1;
			y1++;
		}
	}
	return days;
}

/* Function for calculates interest */
float account::calculate_interest(int t_accno, float t_balance)
{
	fstream file;
	file.open("BANKING.dat", ios::in);
	file.seekg(0, ios::beg);
	int d1, m1, y1, days;
	while (file.read((char *)this, sizeof(account)))
	{
		if (accno == t_accno)
		{
			d1 = dd;
			m1 = mm;
			y1 = yy;
			break;
		}
	}
	int d2, m2, y2;
	struct date d;
	getdate(&d);
	d2 = d.da_day;
	m2 = d.da_mon;
	y2 = d.da_year;
	float t_interest = 0.0;
	if ((y2 < y1) || (y2 == y1 && m2 < m1) || (y2 == y1 && m2 == m1) && (d2 < d1))
		return t_interest;
	days = no_of_days(d1, m1, y1, d2, m2, y2);
	int months = 0;
	if (days > 30)
	{
		months = days / 30;
		t_interest = ((t_balance*2)/100 * months);
	}
	file.close();
	return t_interest;
}

/* Function for making daily transaction (Deposit 'D'/Withdraw 'W'. */
void account::transaction(void)
{
	clrscr();
	char t_acc[10];
	int t, t_accno, valid;
	gotoxy(71,1);
	cout << "<0>=Exit";
	gotoxy(5, 5);
	cout << "Enter the account no. ";
	gets(t_acc);
	t = atoi(t_acc);
	t_accno = t;
	if (t_accno == 0)
		return;
	clrscr();
	initial ini;
	if (!ini.found_account(t_accno))
	{
		gotoxy(5, 5);
		cout << "\7Account not found";
		getch();
		return;
	}
	gotoxy(71, 1);
	cout << "<0>=Exit";
	gotoxy(3, 3);
	for (int i = 1; i <= 76; i++)
		cprintf(" ");
	textbackground(BLACK);
	textcolor(BLACK+BLINK);
	textbackground(WHITE);
	gotoxy(29, 3);
	cprintf ("Transaction in Account");
	textcolor(LIGHTGRAY);
	textbackground(BLACK);
	int d1, m1, y1;
	struct date d;
	getdate(&d);
	d1 = d.da_day;
	m1 = d.da_mon;
	y1 = d.da_year;
	gotoxy(5, 6);
	cout << "Date: " << d1 << "/" << m1 << "/" << y1;
	gotoxy(5, 8);
	cout << "Accnount no. " << t_accno;
	char t_name[30];
	char t_address[30];
	float t_balance;
	strcpy(t_name, ini.return_name(t_accno));
	strcpy(t_address, ini.return_address(t_accno));
	t_balance = ini.give_balance(t_accno);
	gotoxy(27, 11);
	cout << "Name : " << t_name;
	gotoxy(27, 12);
	cout << "Address : " << t_address;

	gotoxy(5, 15);
	cout << "Last balance Rs. " << setw(15)
				<< setprecision(2)
				<< setiosflags(ios::left)
				<< setiosflags(ios::showpoint)
				<< setiosflags(ios::fixed)
				<< t_balance;

	char t_tran, t_type[10], tm[10];
	float t_amount, t_amt;

	do
	{
		clear(5, 10);
		valid = 1;
		gotoxy(5, 10);
		cout << "Deposit or Withdraw (D/W) : ";
		t_tran = getch();
		if (t_tran == '0')
			return;
		t_tran = toupper(t_tran);
	}while (t_tran != 'D' && t_tran != 'W');

	do
	{
		clear(5, 19);
		clear(5, 23);
		gotoxy(5, 23);
		cout << "Enter Transaction by Cash or Cheque ";
		valid = 1;
		gotoxy(5, 19);
		cout << "Cash/Cheque : ";
		gets(t_type);
		strupr(t_type);
		if (t_type[0] == '0')
			return;
		if (strcmp(t_type, "CASH") && strcmp(t_type, "CHEQUE"))
		{
			valid = 0;
			gotoxy(5, 23);
			cprintf("\7Enter correctly");
			getch();
		}
	}while (!valid);

	do
	{
		clear(5, 21);
		clear(5, 23);
		gotoxy(5, 23);
		cout << "Enter Amount for Transaction ";
		valid = 1;
		gotoxy(5, 21);
		cout << "Amount Rs. ";
		gets(tm);
		t_amt = atof(tm);
		t_amount = t_amt;
		if (tm[0] == '0')
			return;
		if ((t_tran == 'W' && t_amount > t_balance) || (t_amount < 1))
		{
			valid = 0;
			gotoxy(5, 23);
			cprintf("\7Invalid Data entered");
			getch();
		}
	}while (!valid);

	char ch;
	clear(5, 23);
	do
	{
		clear(20, 23);
		valid = 1;
		gotoxy(40, 20);
		cout << "Save Transaction <Y/N> : ";
		ch = getche();
		if (ch == '0')
			return;
		ch = toupper(ch);
	}while (ch != 'N' && ch != 'Y');
	if (ch == 'N')
		return;
	float t_interest;

	t_interest = calculate_interest(t_accno, t_balance);

	if (t_tran == 'D')
		t_balance = t_balance + t_amount + t_interest;
	else
		t_balance = (t_balance - t_amount) + t_interest;

	// Modified records are updated in data bases.
	ini.update_balance(t_accno, t_name, t_address, t_balance);
	add_to_file(t_accno, d1, m1, y1, t_tran, t_type, t_interest, t_amount, t_balance);
}

/* Function for closing any account after inputing account number. */
void account::close_account(void)
{
	clrscr();
	char t_acc[10];
	int t, t_accno;
	gotoxy(71, 1);
	cout << "<0>=Exit";
	gotoxy(5, 5);
	cout << "Enter the account no. ";
	gets(t_acc);
	t = atoi(t_acc);
	t_accno = t;
	if (t_accno == 0)
		return;
	clrscr();
	initial ini;
	if (!ini.found_account(t_accno))
	{
		gotoxy(5, 5);
		cout << "\7Account not found ";
		getch();
		return;
	}
	gotoxy(71, 1);
	cout << "<0>=Exit";
	gotoxy(3, 3);
	textbackground(WHITE);
	for (int i = 1; i <= 76; i++)
		cprintf(" ");
	textbackground(BLACK);
	textcolor(BLACK+BLINK);
	textbackground(WHITE);
	gotoxy(30, 3);
	cprintf("Close account screen");
	textcolor(LIGHTGRAY);
	textbackground(BLACK);
	int d1, m1, y1;
	struct date d;
	getdate(&d);
	d1 = d.da_day;
	m1 = d.da_mon;
	y1 = d.da_year;
	gotoxy(5, 6);
	cout << "Date: " << d1 << "/" << m1 << "/" << y1;
	char ch;
	ini. display(t_accno);
	do
	{
		clear(5, 15);
		gotoxy(5, 15);
		cout << "Close this account <y/n?? ";
		ch = getche();
		if (ch == '0')
			return;
		ch = toupper(ch);
	}while (ch != 'N' && ch != 'Y');
	if (ch == 'N')
		return;

	// Function calls to delete the existing account no.
	ini.delete_account(t_accno);
	delete_account(t_accno);
	gotoxy(5, 20);
	cout << "\7Account Deleted";
	gotoxy(5, 23);
	cout << "Press any key to continue...";
	getch();
}

// Main program logic which control the class members and member functions.
void main(void)
{
	main_menu  m_menu;
	int gdriver = DETECT, gmode, errorcode;
	initgraph(&gdriver, &gmode, "D:\\tc\\bgi");

	m_menu.help();
	closegraph();
	m_menu.control_menu();
}