package Authnet;
my($VERSION) = '1.00';

use strict;
no strict 'refs';
use Net::SSLeay qw(get_https post_https sslcat make_headers make_form);


#------------------------------------------------------------------------------------------------
##                                       BEGIN SUBS HERE
#------------------------------------------------------------------------------------------------
sub new {
    my $self = bless({},shift);
    my $parm = shift;
    $self->{_prog_name} = $parm->{prog_name} or croak("No prog_name parm");
    $self->{_conf_path} = $parm->{conf_path} or croak("No conf_path parm");

    $self->initialize();

    return($self);
}

#-----------------------------------------------------------------------------------

sub AUTOLOAD {
    # Handle the case where an undefined subroutine is called
    return('');
}

#-----------------------------------------------------------------------------------

sub DESTROY {
    my($self) = shift;

    $self->finish();
}

#-----------------------------------------------------------------------------------

sub finish {
    my($self) = shift;

}

#-----------------------------------------------------------------------------------

sub initialize {
    my($self) = shift;
    require $self->{_conf_path};

    if (defined(%conf::data)) {
        $self->{_conf} = \%conf::data;
    }
    $self->{_error} = undef;
    $self->{_err_txt} = undef;
}

#-----------------------------------------------------------------------------------
#this sub processes the payment transaction via authorize.net
#-----------------------------------------------------------------------------------
sub auth_trans{
    my ($self) = shift;
    my ($ref_url) = shift;
    my ($sub_id) = shift;
    my ($f_name) = shift;
    my ($l_name) = shift;
    my ($addr) = shift;
    my ($city) = shift;
    my ($state) = shift;
    my ($zip) = shift;
    my ($card_no) = shift;
    my ($cvv2) = shift;
    my ($exp_date) = shift;
    my ($amt) = shift;

    my ($DEBUG) = 1;

    if (!$sub_id){
        $self->{_error} = 97;
        $self->system_notify();
        return(0);
    }

    if (!$f_name || !$l_name || !$card_no || !$exp_date || !$amt){
        $self->{_error} = 33;
        $self->{_err_txt} = 'First name, Last Name, Card Number, Exp Date, or Amount';
        return(0);
    }

    my (@auth_array) = ();
    my($host) = $self->{_conf}{'Authnet_host'};
    my($script) = $self->{_conf}{'Authen_script'};
    my ($url) = $self->{_conf}{'Authnet_URL'};

    my($headers) = make_headers('Connection' => 'close',
                                'Referer' => $ref_url,
                                'Accept-Language' => 'en-us',
                                'User-Agent' => 'Mozilla/4.0 (compatible; AIT 1.1)');

    my ($form) = make_form('x_Login' => $self->{_conf}{'x_Login'},
                           'x_Password' => $self->{_conf}{'x_Password'},
                           'x_ADC_Delim_Character' => $self->{_conf}{'x_ADC_Delim_Character'},
                           'x_ADC_Delim_Data' => $self->{_conf}{'x_ADC_Delim_Data'},
                           'x_Encapsulate_Character' => $self->{_conf}{'x_Encapsulte_Character'},
                           'x_ADC_URL' => $self->{_conf}{'x_ADC_URL'},
                           'x_Method' => $self->{_conf}{'x_Method'},
                           'x_Type' => $self->{_conf}{'x_Type'},
                           'x_Version' => $self->{_conf}{'x_Version'},
                           'x_Description' => $self->{_conf}{'x_Description'},
                           'x_Cust_id' => $sub_id,
                           'x_First_Name' => $f_name,
                           'x_Last_Name' => $l_name,
                           'x_Address' => $addr,
                           'x_City' => $city,
                           'x_State' => $state,
                           'x_Zip' => $zip,
                           'x_Card_Num' => $card_no,
                           'x_Card_Code' => $cvv2,
                           'x_Exp_Date' => $exp_date,
                           'x_Amount' => $amt);
    if ($DEBUG){
        print "\nFORM> $form\n";
        print "\nHEADERS> $headers\n";
    }

    my($page1,$response,%reply_headers1) = post_https($host,'443',$script,'',$form);
    print "\nPAGE1> $page1...$response\n";

    if ($DEBUG){
        my($key) = undef;
        foreach $key (sort keys %reply_headers1){
            print "$key -> $reply_headers1{$key}\n";
        }
    }


    my($x) = undef;

    ############attempt to contact transact.dll at least 5 times,  exit loop if sucessfull, else generate error#######

    for($x=0;$x<5;$x++){
        my ($page2,$result,%reply_headers2) = get_https($host,'443',"$script?$form");
        print "\nPAGE2> $page2...$result\n";

        if($result =~ m/OK/){
            @auth_array = split(/,/,$page2);
            $self->{_error} = $auth_array[2];
            last;

        }else{
            $self->{_error} = 99;
        }

        if ($DEBUG){
            $key = undef;
            foreach $key (sort keys %reply_headers2){
                print "$key -> $reply_headers2{$key}\n";
            }
        }

    }
        if($self->{_error} > 1){  #-- if error --#

            ###### if the error is a system error, then notify system contact ######
            if ($self->{_conf}{'x_response_reason_code'}{$self->{_error}}{'System'} == 1){
                $self->system_notify($sub_id);
            }

            ###### if omitted field error, then get field name for custom message ######
            if ($self->{_error} == 33){
                $auth_array[3] =~ /^(.+)\scannot/;
                $self->{_err_txt} = $1;
            }

            return(0);

        }else{  ##### if success, return x_trans_id #####
            return(1,$auth_array[6]);
        }
}

#----------------------------------------------------------------------------------
#this sub returns error text
#-----------------------------------------------------------------------------------
sub error{
    my($self) = shift;

    my($t) = $self->{_conf}{'x_response_reason_code'}{$self->{_error}}{'Text'};
    if ($self->{_err_txt}){
        $t .= " $self->{_err_txt}";
    }

    undef($self->{_error});
    return($t);
}

#-----------------------------------------------------------------------------------
#this sub emails system contact in the event of a system error
#-----------------------------------------------------------------------------------

sub system_notify{
    my($self) = shift;
    my($sub_id) = shift;
    my($error) = $self->{_conf}{'x_response_reason_code'}{$self->{_error}}{'Text'};

    if ($DEBUG){print "SUB_ID => $sub_id\nERROR => $error\n";}


    my($mailto) = 'ccgateway@cinergycom.com';
    my($smail) = '/usr/lib/sendmail';

    open (MAIL, "|$smail -f $mailto gmorris\@evansville.net") or die "Error sending email:$!";

        print MAIL <<EOM;
From: Authorize.net Processing Gateway <$mailto>
To: Authorize.net Processing Gateway <$mailto>
Subject: A system error has occurred

The following error has occurred while processing a credit card
transaction for customer $sub_id:

        Error $self->{_error}: $error

        Calling Program: $self->{_prog_name}
EOM


    close MAIL;

    $self->{_error} = 98;
}
1;