//Project on ONLINE SHOPPING

#include<fstream.h>
#include<conio.h>
#include<math.h>
#include<graphics.h>
#include<dos.h>
#include<ctype.h>
#include<stdlib.h>
#include<process.h>
#include<stdio.h>
#include<string.h>

void home();

class purchase //Class to declare product code

{ //Quantity,price and description
public:
long int code;
long int price;
};

class shop //Class to declare

{ //variables needed in shopping
public:
long int code;
char decsy[20];
long float price;
int cat;
long int qon;
void dispdata();
void getdata() //Member function
{ //to accept data
clrscr();
cout<<"\n\n\nEnter the category number\n\n1 for electronics";
cout<<"\n\n\n2 for vehicles\n\n\n3 for jwellery\n\n\nEnter ur choice ";
cin>>cat;
cout<<endl;
clrscr();
cout<<"Enter the code no of the item\n\n";
cin>>code;
cout<<endl;
cout<<"Enter description\n\n";
gets(decsy);
cout<<endl;
cout<<"Enter the price\n\n";
 cin>>price;
cout<<endl;

cout<<"Enter the quantity\n";

cin>>qon;
cout<<"Data has been entered";
}
};

void shop::dispdata() //To display data

{

cout<<code<<"\t\t";
cout<<decsy<<" \t\t\t";
cout<<price<<"\t\t";
cout<<cat<<"\t\t";
cout<<qon;
cout<<endl<<endl;
}

void basket(int p) //To add products to basket

{ //for bill generation

fstream fb;
fstream fp;

fb.open("product.dat",ios::in|ios::binary);
fp.open("basket.dat",ios::app|ios::binary);
shop s;

fb.read((char *)&s,sizeof(s));

do
{
if(p==s.code)
{
s.dispdata();
s.qon--;

cout<<"\n";
cout<<endl;
fp.write((char *)&s,sizeof(s));
}
fb.read((char *)&s,sizeof(s));
}while(fb);
 fb.close();
fp.close();
}

void main() //Main function

{
home();
}

void create1() //To create file initially

{
clrscr();
cout<<"\n\n";
shop s;
fstream fb;
fb.open("product.dat",ios::out|ios::binary);
char rep;
do
{
s.getdata();
fb.write((char *)&s,sizeof(s));
cout<<"\n\n\t Want to add more records";
cin>>rep;
}while(rep=='y' || rep=='Y');
fb.close();
getch();
}

void addfile() //To add to file

{ clrscr();
cout<<"\n\n";
shop s;
fstream fb;
fb.open("product.dat",ios::app|ios::binary);
char rep;
do
{
s.getdata();
fb.write((char *)&s,sizeof(s));
cout<<"\n\n\tWant to add more records";
cin>>rep;
}while(rep=='y' || rep=='Y');
fb.close();
getch();
}
void delfile() //To delete products
{
clrscr();
int r;
char rep;
shop s;
cout<<" \n\n\nEnter the item code u want to delete\n\n";
cin>>r;
fstream fb,ft;
fb.open("product.dat",ios::in|ios::binary);
ft.open("tempu.dat",ios::out|ios::binary);
int flag=0;
fb.read((char *)&s,sizeof(s));
do
{

if(r!=s.code)
{
ft.write((char *)&s,sizeof(s));

}
else
{
flag++;

}
fb.read((char *)&s,sizeof(s));

}while(fb);
fb.close();
ft.close();

if(flag==0)
cout<<"No such item\n\n";
else
{
cout<<"\nITEM HAS BEEN DELETED\n\n";

}
remove("product.dat");
rename("tempu.dat","product.dat");
cout<<"\n\nTo move back, press 0\n ";
cout<<"To delete more product, press any other digit\n";
int d;
cin>>d;
if(d==0)
 return;
else
delfile();

void modfile() //To modify product

{
clrscr();
int r;
char rep;
shop s;
cout<<"Enter the item code u want to modify\n\n";
cin>>r;
fstream fb,ft;
fb.open("product.dat",ios::in|ios::binary);
ft.open("tempu.dat",ios::out|ios::binary);

fb.read((char *)&s,sizeof(s));
do
{
if(r==s.code)
{
cout<<"Old data is \n \n ";
cout<<" CODE ";
cout<<" NAME ";
cout<<" PRICE ";
cout<<" CATEGORY ";
cout<<" QUANTITY\n\n\n";
s.dispdata();
cout<<"Enter new data\n";
getch();
s.getdata();
ft.write((char *)&s,sizeof(s));
}

else
{
ft.write((char *)&s,sizeof(s));
cout<<"\nNo such item exists\n";
cout<<"\nPress enter to go back";
getch();
return;
}
getch();

fb.read((char *)&s,sizeof(s));
 }while(fb);
ft.close();
fb.close();

remove("product.dat");
rename("tempu.dat","product.dat");
cout<<"\n\nTo move back, press 0\n";
int d;
cin>>d;
if(d==0)
return;
}

void bill() //function to generate bill

{ clrscr();
void delfile2();
shop s;
fstream fj;
fj.open("basket.dat",ios::in|ios::binary);
cout<<"\nYour basket has following items\n\n";
cout<<" NAME CODE PRICE\n\n\n";
int sum=0;
fj.read((char *)&s,sizeof(s));
do
{
cout<<s.decsy<<" "<<s.code<<" "<<s.price;
cout<<"\n\n";
sum+=s.price;
fj.read((char *)&s,sizeof(s));
}while(fj);
fj.close();
int choice;
getch();
clrscr();

cout<<"\n\n\nTo generate your bill, press 1\n";

cout<<"\nTo delete some item, press 2\n";
cout<<"\nTo reject full order and exit, press 3\n\n";
cout<<"Enter your choice ";
cin>>choice;
switch(choice)
{
case 1:
char add[150];
cout<<"\n\nYour bill amount is---- Rs"<<sum;
float tax=.008*sum;
cout<<"\n\nTax on your billed amount is Rs "<<tax;
 cout<<"\n\nTotal round figure bill is Rs "<<sum+tax;
getch();
cout<<"\nEnter your residence address\n ";
gets(add);
cout<<"Your product will be delivered to you within 2 days\n";
cout<<"Please ensure the full payment of bill at the time of delivery\n";
getch();

break;
case 2:
delfile2();
break;
case 3:
exit(0);
}
}

void stock()
{
clrscr();
int r;
char rep;
shop s;
cout<<"Enter the item code u want to update\n\n";
cin>>r;
fstream fb,ft;
fb.open("product.dat",ios::in|ios::binary);
ft.open("tempu2.dat",ios::out|ios::binary);

fb.read((char *)&s,sizeof(s));
do
{
if(r==s.code)
{
cout<<"\n\nOld quantity is ";
cout<<s.qon;

cout<<"\n\nEnter new quantity\n";

getch();
cin>>s.qon;
ft.write((char *)&s,sizeof(s));
cout<<"\n\nNew quantity has been registered\n";
}

else
{
ft.write((char *)&s,sizeof(s));
cout<<"\nNo such item exists\n";
 cout<<"\nPress enter to go back";
getch();
return;
}
getch();

fb.read((char *)&s,sizeof(s));
}while(fb);
ft.close();
fb.close();

remove("product.dat");
rename("tempu2.dat","product.dat");
cout<<"\n\nTo move back, press 0\n";
int d;
cin>>d;
if(d==0)
return;
}
void delfile2() //To delete product from basket
{
int r;
char rep;
shop s;
cout<<"Enter the item code u want to delete\n\n";
cin>>r;
fstream fb,ft;
fb.open("basket.dat",ios::in|ios::binary);
fb.open("tempu1.dat",ios::out|ios::binary);
int flag=0;
fb.read((char *)&s,sizeof(s));
do
{
if(r!=s.code)
{
ft.write((char *)&s,sizeof(s));
}
else
{
flag++;
}
fb.read((char *)&s,sizeof(s));
}while(fb);
ft.close();
fb.close();
if(flag==1)
{
 cout<<"ITEM DELETED";
cout<<"No. of items deleted are "<<flag;
}
else
cout<<"\n NO ITEMS DELETED ";
remove("basket.dat");
rename("tempu1.dat","basket.dat");
cout<<"\n\nTo Generate bill press 0";
int d;
cin>>d;
if(d==0)
return;
}

void electronics() //Electronics section

{
shop t;

fstream fp;
fp.open("product.dat",ios::in|ios::binary);
clrscr();
fp.read((char *)&t,sizeof(t));
cout<<endl<<endl;
cout<<"CODE DESCRIPTION PRICE CATEGORY QUANTITY "<<endl;
cout<<endl<<endl;
do
{
if(t.cat==1)
t.dispdata();
fp.read((char *)&t,sizeof(t));
}while(fp);
fp.close();
int toad,l,m;
cout<<"To return back, press 2, to buy press 1\n\n";
cin>>l;
if(l==2)
return;
else
{
int ch;
do
{
cout<<"\nTo buy the product, enter the product code from the list\n\n";
cin>>toad;
basket(toad);
cout<<"\nThe product you have chosen has been added to your basket\n\n";
cout<<"\n\nTo Continue your shopping press 1, To go to homepage, press 2\n\n";
 cin>>ch;
}while(ch!=2);
}

}
void jwellery() //jwellery section
{
shop t;
fstream fp;
fp.open("product.dat",ios::in|ios::binary);
clrscr();
fp.read((char *)&t,sizeof(t));
cout<<endl<<endl;
cout<<"CODE DESCRIPTION PRICE CATEGORY QUANTITY "<<endl;
cout<<endl<<endl;
do
{
if(t.cat==3)
t.dispdata();
fp.read((char *)&t,sizeof(t));
}while(fp);
fp.close();
int toad,l,m;
cout<<"To return back, press 2, to buy press 1\n\n";
cin>>l;
if(l==2)
return;
else
{
int ch;
do
{ cout<<"\nTo buy the product, enter the product code from the list\n\n";
cin>>toad;
basket(toad);
cout<<"\nThe product you have chosen has been added to your basket\n";
cout<<"\n\nTo Continue your shopping press 1, To go to homepage, press 2\n\n";
cin>>ch;
} while(ch!=2);
}

void vehicles() //vehicles section

{
shop t;
fstream fp;
fp.open("product.dat",ios::in|ios::binary);
 clrscr();
fp.read((char *)&t,sizeof(t));
cout<<endl<<endl;
cout<<"CODE ";
cout<<"DESCRIPTION ";
cout<<"PRICE ";
cout<<"CATEGORY ";
cout<<"QUANTITY";
cout<<endl<<endl;
do
{
if(t.cat==2)
t.dispdata();
fp.read((char *)&t,sizeof(t));
}while(fp);
fp.close();
int toad,l,m;
cout<<"To return back, press 2, to buy press 1\n\n";
cin>>l;
if(l==2)
return;
else
{
int ch;
do
{ cout<<"\nTo buy the product, enter the product code from the list\n\n";
cin>>toad;
basket(toad);
cout<<"\nThe product you chose has been added to your basket";
cout<<"\n\nTo Continue your shopping press 1, To go to homepage, press 2\n\n";
cin>>ch;
} while(ch!=2);
}

void shopping() //main menu for shopper

{ clrscr();
int w;
cout<<"\n\n\n--------------------------------------------------------------------------------";
cout<<" WELCOME TO ONLINE BAZAAR\n";
cout<<"--------------------------------------------------------------------------------";

cout<<" \n\n !!!!!! PAISA VASOOL!!!!!\n";

 cout<<" \n ####CATAGORIES#####\n\n";
cout<<" \n1. ELECTRONICS\n\n";
cout<<" \n2. VEHICLES\n\n";
cout<<" \n3. JWELLERY\n\n";
cout<<" \n4. BACK\n";
cout<<endl<<endl<<"Enter your choice";
cin>>w;
switch(w) //to select category
{
case 1:
electronics();
break;
case 2:
vehicles();
break;
case 3:
jwellery();
break;
case 4:
home();
break;
}
}

void admin() //administration section

{
int c;
do
{
clrscr();
cout<<endl<<endl<<endl<<endl;
cout<<" \t\t\t Hello Administrator\n\n ";
cout<<"\n\t\tChoose from the Menu options \n\n";
cout<<"\t\t1. CREATE FOR FIRST TIME (This will erase all previous data)\n\n\n";
cout<<"\t\t2. ADD PRODUCT \n\n\n";
cout<<"\t\t3. DELETE A PRODUCT \n\n\n";
cout<<"\t\t4. MODIFY\n\n\n";
cout<<"\t\t5. STOCK UPDATION\n\n\n";
cout<<"\t\t6. BACK \n\n\n";
cout<<"\t\tEnter your choice ---- ";
cin>>c;
switch(c)
{
case 1:
char ch;
clrscr();
cout<<"\n\n\tAre you sure to erase all previous data if there?(y/n)\n";
 cin>>ch;
if(ch=='y')
create1();
else
return;
break;
case 2:
addfile();
break;
case 3:
delfile();
break;
case 4:
modfile();
break;
case 5:
stock();
break;
case 6:
return;
}
}while(c!=5);
}

void home()
{
textbackground(RED);
textcolor(BLACK);
fstream fp;
fp.open("basket.dat",ios::out|ios::binary);
fp.close();

int ch;
do
{

clrscr();
cout<<"\n\n--------------------------------------------------------------------------------";
cout<<" WELCOME TO ONLINE BAZAAR\n";
cout<<"--------------------------------------------------------------------------------";

cout<<" \n !!!!!! PAISA VASOOL!!!!!\n";

cout<<" \n\n\t\t ####CATEGORIES#####\n\n";
cout<<"\t\t1. ADMINISTRATION \n\n\n";
cout<<"\t\t2. SHOPPING \n\n\n";
cout<<"\t\t3. YOUR BASKET\n\n\n";
 cout<<"\t\t4. BYE BYE (EXIT) \n\n\n";
cout<<" Enter your choice ----- ";
cin>>ch;
switch(ch)
{
case 1:
clrscr();

char *pass;
gotoxy(12,12);
pass = getpass("Input the password:");
if(strcmp(pass,"1234")==0)
admin();
else
cout<<"\n\nwrong password\n\n";
getch();

break;
case 2:
shopping();
break;
case 3:
bill();
break;
case 4:
exit(0);
break;
}
}while(ch!=4);
}