#!/usr/bin/perl -wT
use CGI qw(:standard);
use CGI::Carp qw(warningsToBrowser fatalsToBrowser);
use DBI;
use strict;

print header;
print start_html("Results");

my $dbh = DBI->connect( "dbi:mysql:products", "webserver", "", { RaiseError =>
 1, AutoCommit => 1 }) or &dienice("Can't connect to database: $DBI::errstr");

# put all the form data into a hash
my %FORM = ();
foreach my $i (param()) {
   $FORM{$i} = param($i);

# here we check to make sure they actually filled out all 
# the fields. if they didn't, generate an error.

my @required = ("name","ship_addr","ship_city","ship_state","ship_zip",
"phone", "email");
foreach my $i (@required) {
   if (!(param($i))) {
      &dienice("You must fill out the fields for your name,
e-mail address, phone number and shipping address."); 

if (index($FORM{email}, "@") < 0) {
   &dienice("$FORM{email} doesn't seem to be a valid e-mail address.");

my $sth = $dbh->prepare(qq(select stocknum,name,price from items where status != "OUT" order by stocknum)) or &dbdie;

$sth->execute or dbdie;

my $subtotal = 0;
my $items_ordered = "";
while (my($stocknum,$name,$price) = $sth->fetchrow_array) {
    if (param($stocknum)) {
        my($qty) = param($stocknum);
        $subtotal = $subtotal + ($price * $qty);
        $items_ordered .= qq($name (#$stocknum) - $price ea., qty: $qty\n);

# add $3 for shipping
my $total = $subtotal + 3;

my $ordermsg = <<End1;
Order From: $FORM{name}
Shipping Address: $FORM{ship_addr}
City: $FORM{ship_city}
State: $FORM{ship_state}
ZIP: $FORM{ship_zip}
Country: $FORM{ship_country}
Phone: $FORM{phone}
Email: $FORM{email}

Payment Method: $FORM{paytype}
Items Ordered:

Subtotal: \$$subtotal
Shipping: \$3.00
Total: \$$total

Thank you for your order!

# Tell them how to send us payment...
if ($FORM{paytype} eq "check") {
   $ordermsg .= qq(Please send a check or money order for \$$total to: 
      Kite Store, 555 Anystreet, Somecity, TX 12345.\n);
} elsif ($FORM{paytype} eq "cc") {
   $ordermsg .=  qq(Please call us at (555) 555-5555 with your credit card 
      information, or fax your card number, billing address and expiration date 
      to our fax number at (555) 555-5555.\n);
} else {
   $ordermsg .= qq(Please <a href="http://www.paypal.com">click here</a> to 
      complete your payment on Paypal.\n);

my $from = "webmaster\@cgi101.com";

# send the order to the store
&sendmail($from, "nullbox\@cgi101.com", "Kite Store Order", $ordermsg);

# also send a copy of the order to the customer
&sendmail($from, $FORM{email}, "Kite Store Order", $ordermsg);
# finally print a thank-you page.
print <<EndHTML;
<h2>Thank You!</h2>
Here's what you ordered:<br>


sub dienice {
    my($msg) = @_;
    print "<h2>Error</h2>\n";
    print $msg;

sub sendmail {
    my($from, $to, $subject, $msg) = @_;
    $ENV{PATH} = "/usr/sbin";
    my $mailprog = "/usr/sbin/sendmail";
    open (MAIL, "|/usr/sbin/sendmail -t -oi") or 
        &dienice("Can't fork for sendmail: $!\n");
    print MAIL "To: $to\n";
    print MAIL "From: $from\n";
    print MAIL "Subject: $subject\n\n";
    print MAIL $msg;

sub dbdie {
    my($package, $filename, $line) = caller;
    my($errmsg) = "Database error: $DBI::errstr<br>
                called from $package $filename line $line";