package Handler::Colors;
use YAML qw(Load);  # or some other module to handle config-like files

#  set up a bunch of event handlers that
#  send email depending on colour

sub init {
  my $colors = Load('/color/config');
  my @handlers;
  while (my ($color,$email) = each %$colors) {
    @handlers = Handler::Colors->new(
       {
         color => $color,
         email => $email
       }
    );
  }
  return @handlers; #update: added this line!
}

# create handler object

sub new {
  my $class = shift;
  return bless { @_ },$class;
}

# check for my color and send email if found.

sub handle {
  my ($self,$event) = @_;
  if ($self->{color} eq $event->color()) {
     send_mail($self->{email});
  }
}