#include <stdio.h>
#include <string.h>



int order, paymet, ordnum=1, wrngpay; 		                  
int sweater[30], t_shirt[30], shrt[30], slack[30]; 
float swtot, tshtot, shrtot, slatot;	 	                     
float total[30];
int validate_id(void);
int i, cost_id[30];
float calculate_order(int, int[], int[], int[], int[]);
char pay_method;
void print_report(int, int[], int[], int[], int[], int[], float[], char[]);

main() {

printf( "  \n Welcome to C Fashion! \n " );

for(i =0;i<30; ++i)
 do{
  validate_id();
   for(; validate_id() != -1; )
    printf("\n Welcome, Costumer # %d \n", cost_id);

     printf("\n\n\tProduct\t\tCost per Box\n");
     printf("\n\t Sweaters \t$150\n");
     printf("\n\t T-Shirts \t$100\n");
     printf("\n\t Shorts \t$120\n");
     printf("\n\t Slacks \t$200\n");
     
     printf( " \n Welcome, Costumer # %d \n" , cost_id );
      printf( "\n Please enter the number of sweaters you would like to order: " ) ;
      scanf( "%d", &sweater[i] );
       printf( " You have ordered %d sweaters. \n" , sweater);
      printf( "\n Please enter the number of t-shirts you would like to order: " );
      scanf( "%d", &t_shirt[i] );
       printf( " You have ordered %d t-shirts. \n" , t_shirt );  
      printf( "\n Please enter the number of shorts you would like to order: " ) ;
      scanf( "%d", &shrt[i] );
       printf( " You have ordered %d shorts. \n" , shrt );
      printf( "\n Please enter the number of slacks you would like to order: " ) ;
      scanf( "%d", &slack[i] );
       printf( " You have ordered %d slacks. \n \n" , slack );  
   

     
     if ( sweater || t_shirt || shrt || slack ) {                                        
      order = 1;
      }
      else order = 0;
      if (order)
      {
        do {
          printf("\n Select one of the following methods of payment\n");
          printf("\n1\tCheck or money order\n2\tBank Transfer\n3\tCredit Card");
          printf("\nEnter your selection: ");
          scanf("%d", &paymet);
          switch (paymet) {
            case 1: 
              wrngpay = 0;
              pay_method[i]="Check or money order";
              break;
            case 2:
              wrngpay = 0;
              pay_method[i]="Bank Transfer";
              break;
            case 3:                                                         
              wrngpay = 0;
              pay_method[i]="Credit Card";
              break;
            default: 
              wrngpay = 1;
              printf("\n This is not a valid option");
          }
        } while (wrngpay);

        printf("\nCustomer: #%d\n\n", cost_id);

        swtot = sweater * 150 ;                                                             
        tshtot = t_shirt * 100 ;
        shrtot = shrt * 120 ;
        slatot = slack * 200 ;

        printf("%20s%10s%10s\n", "Product", "Boxes", "Cost");                                
        if (sweater) printf("%20s%10d%10.2f\n", "Sweaters", sweater, swtot);
        if (t_shirt) printf("%20s%10d%10.2f\n", "T-shirts", t_shirt, tshtot);
        if (shrt) printf("%20s%10d%10.2f\n", "Shorts", shrt, shrtot);
        if (slack) printf("%20s%10d%10.2f\n", "Slacks", slack, slatot);

        printf("\n The for total for your order is: $ %.2f\n", calculate_order(i, sweater, t_shirt, shrt, slack);        
        printf("\n\n \t\tMethod of Payment: %s\n", pay_method[i] );  

       printf("\n\n \t\tEnd of order #%d \n\n", ordnum);                                         
       ordnum++ ;       
     }
     else printf( "\n\n \t No items ordered!!! \n\n" );

     
  printf("\n\n\t\t Thank you for using C Fashion!!!");
 } while(i<30);

print_report(i, cost_id, sweater, t_shirt, shrt, slack, total, pay_method);


  return 0;
}
/*-------------------------------------------------------------------------------------------------------*/

/* Function 1 */
int validate_id()
{   

 
   do{   
    printf("\n Please enter your costumer identification number or \"-1\" to exit. \n");
    scanf("%d", cost_id);

   if (cost_id >= 1 && cost_id <= 100) {       
    printf("You entered %d\n", cost_id);
    return (cost_id);
    }
 
 
   else if (cost_id == -1) 
    return (-1);
   
   else {printf("Invalid costumer identification number");}

   } while (cost_id > -1 && cost_id > 100 );
}


/* Function 2 */

float calculate_order(int 30, int a[], int b[], int c[], int d[])
{
total[i]={0};
 total[i] = total[i] + (150 * a[i]) + (100 * b[i]) + (120 * c[i]) + (200 * d[i]) ; 
   return total[i];
}

/* Function 3 */

void print_report(int i, int cost_id[], int sweater[], int t_shirt[], int shrt[], int slack[], float total[], char pay_method[])
{
printf("%20s%20s%20s%20s%20s%20s%20s\n", "customer id", "sweaters", "t-shirts", "shorts", "slacks", "total($)", "form of payment");
for(i=0; i < 30; i++) 
printf("%20d%20d%20d%20d%20d%20.2f%20s\n", cost_id[i], sweater[i], t_shirt[i], shrt[i], slack[i], total[i], pay_method[i]);
}

/* End of Program */