Restaurant management system.c

#include <stdio.h>
int token = 0,tokens[50],payment_counter=0;
int main_page(){
    int i;
    system("cls");
    printf("\n\n\n\t\t      -$- Welcome to Cafe Good day -$- \t\t\n\n");
    printf("\n\t\t\t Good Quality Food and Services \t\t\t\n");
     for (i=0;i<40;i++)
     {
        printf("~");
     }
     printf("Your destined place");
      for (i=0;i<40;i++)
     {
        printf("~");
     }
     printf("\n");
 printf("\n");
    printf("       Tasty           $                                  $\n");
    printf("                       $    Select any of them -          $\n");
    printf("        and            $                                  $\n");
    printf("                       $    1. New Order.                 $\n");
    printf("       Hygenic         $                                  $\n");
    printf("                       $    2. Bill Payment.              $\n");
    printf("      Foods at         $                                  $\n");
    printf("                       $    3. Exit.                      $");
    printf("\n");
    printf("       Low cost..      $                                  $\n");
    printf("                       $                                  $\n");
    printf("     GRAB NOW !!       ");

       for (i=0;i<40;i++)
     {
        printf("~");
     }
    printf("\n\n\n\n                         Enter Your Choice: ");
    int n;
    scanf("%d",&n);
      if(n==1)
    {
        menu_order();
    }
}
    
  int menu_order()
{
      int arID[10],decision,arqty[10],Bill[10],counter=0;
    work:
    system("cls");
    system("color 4F");
    printf("\n\t\t\t\tFOOD MENU\n\t\t\t\t---------\n");
    printf("\n\tStarters:\n\n");
    printf("\t1. Dosa ...................... 120/=\t  \n");
    printf("\t2. Idli ..........................  40/=\n");
    printf("\t3.  Manchrian...........................  70/=\t \n");
    printf("\t4. French Fries (FnF Pack) ..........  90/=\t \n");
    printf("\t\t\t\t\t\t\t \n\n\tMain course :\n\n");
    printf("\t5. Dal Rice ...................  90/=\n");
    printf("\t6. Veg Biryani ....................  65/=\n");
    printf("\n\tDESSERTS :\n\t\t\t\t\t\t\t \n");
    printf("\t7. Ice Cream ........................  65/=\t  \n");
    printf("\t8. Sweets ........................... 230/=\t \n");
    printf("\n\tDRINKS :\n\n");
    printf("\t9.  Coca-Cola ........................ 25/=\n");
    printf("\t10. Mirinda   ........................ 25/=\n");
    printf("\n\n\tOrder your dish: (Enter 0 to finish order)\n");
    for(;;)
    {
        counter++;
        printf("\t Enter Food ID: ");
        scanf("%d",&arID[counter-1]);
        if(arID[counter-1]==0)
        {
            break;
        }
        printf("\t Enter Quantity: ");
        scanf("%d",&arqty[counter-1]);

    }
    system("cls");
   printf("\n\n\n\n\n\n\n\n\t\tThanks for your order. We are getting ready the dishes.\n\t\tUntil then, have some selfies with friends. Enjoy!\n\n\n\t\t  <Enter 1 to check your bill>\n\t\t\tEnter your choice: ");

    scanf("%d",&decision);
    printf("\n\n\n\n\n\n\n\n");

    counter--;
      if(decision==1)
    {
        Bill_show(arID,arqty,counter);
    }

    else if(decision==2)
    {
       goto work;
    }

    else if(decision==3)
    {
        main();
    }

}
int Bill_show(int arID[],int arqty[],int counter)
{

    int n;
    system("cls");
    system("color B0");

    int i,sum=0;
    int costs[10]={120,40,70,90,90,65,65,230,25,25};
    char items[10][16]={"Dosa","Idli","Manchurian","French Fries","Dal Rice","Veg Biryani","Ice Cream","Sweets","Coca-Cola","Mirinda"};
    printf("\n\nYour Bill:\n\n\n\t\tItem(s)\t\t     Quantity\t\t    Cost\n\n\n\n");
     for(i=0;i<counter;i++)
    {
        printf("\t%2d. %-16s ________\t%-5d piece(s) ____ %7d\n",i+1,items[arID[i]-1],arqty[i],arqty[i]*costs[arID[i]-1]);
        sum=sum+(costs[arID[i]-1]*arqty[i]);
    }
      printf("\n\n\n\n\t\t\t\t\t\t\t  Total = %d\n\n\n\n",sum);
    token ++;
    tokens[token]=sum;
    printf("\tYour token number is %d. Use this token while paying the bill.\n\n\n\n\n\t\t\t<enter (1) to give another order>\n\n\t\t\t<enter (2) to go to the main menu>\n\n\t\n\t\t\tEnter your choice: ",token);
    scanf("%d",&n);
    printf("\n\n\n");
    if(n==1)
    {
        menu_order();
    }
    else if(n==2)
    {
        main();

    }

}
int Bill_Payment()
{

    int k,i,cash,changer,n;
    redo:
    payment_counter++;
    system("cls");
    system("color 3F");
    printf("\n\n\n\t\t\tEnter your token number: ");
    scanf("%d",&k);
    printf("\t\t\tYour Total Bill is = %d",tokens[k]);
    work:
            printf("\n\t\t\tPay your bill: ");
            scanf("%d",&cash);
    changer = cash-tokens[k];
    if(changer == 0)
    {
        printf("\n\t\tThanks for your payment. Have a great day!\n");
    }
    else if (changer<0)
    {
        system("cls");
        printf("\n\t\t\tAmount is not sufficient. :(\n\t\tPlease pay the fair price of your bill\n");
        goto work;
    }
	else
    {
        printf("\n\n\n\t\tHere is your change : (%d - %d) = %d Tk.\n\t\t  ",cash,tokens[k],changer);

            for(i=0;i<19;i++)
            {
                printf("_");
            }
            if(changer>=1000 )
                {printf("\n\t\t1000 Tk. note(s) = %d\n",changer/1000);
                changer=changer%1000;}
            if(changer>=500 && changer<1000)
            {printf("\n\t\t 500 Tk. note(s) = %d\n",changer/500);
            changer=changer%500;}
            if(changer>=100 && changer<500)
            {printf("\n\t\t 100 Tk. note(s) = %d\n",changer/100);
            changer= changer%100;}
            if(changer>=50 && changer<100)
            {printf("\n\t\t  50 Tk. note(s) = %d\n",changer/50);
            changer=changer%50;}
             if(changer>=10 && changer<50)
            {printf("\n\t\t  10 Tk. note(s) = %d\n",changer/10);
            changer=changer%10;}
            if(changer>=5 && changer<10)
            {printf("\n\t\t   5 Tk. note(s) = %d\n",changer/5);
            changer=changer%5;}
            if(changer>=2 && changer<5)
            {printf("\n\t\t   2 Tk. note(s) = %d\n",changer/2);
            changer=changer%2;}
            if(changer>=1 && changer<2)
            {printf("\n\t\t   1 Tk. note(s) = %d\n",changer/1);
            changer=changer%1;}

            printf("\t\t  ");
            for(i=0;i<19;i++)
            {
                printf("_");
            }

        printf("\n\n\n\n\n\t\t\tThanks for your payment.\n\t\t\t    Have a great day!\n",changer);



    }
    printf("\n\n\t\t\t<Enter (1) to pay another bill.>\n\t\t\t<Enter (2) to go back main menu>\n\n\n\t\t\tEnter your choice: \t");
        scanf("%d",&n);
        if(n==2)
        {
            main();
        }
        else if(n==1)
        {
           goto redo;
        }

}
int main()
 {

    int k,j,n,d;
    k = main_page();

    if(k==1)
    {
        menu_order();
    }

    else if(k==2)
    {
        Bill_Payment();
    }

    else
    {
        system("cls");
        system("color 30");
        printf("\n\n\n\n\n\t\t       @@_@_\n\t\t         `'*'`  Cafe Nirvana\n\t\t\t\t\t`'*'`-@@_@\n\n");
        printf("\n\n\n\t\t\tThis session order recieved : %d\n\n",token);
        printf("\t\t\tThis session bill paid      : %d\n\n",payment_counter);
        if(payment_counter<token)
        {printf("\t\t\t\tYet to pay          : %d\n\n\n\n\n\n",token-payment_counter);}
        else
        {
            printf("\n\n\n\n\n\n");
        }
        return 0;
    }

 }