Integrate with uc_echecknet module

The attached authnet_ui patch needs to be applied after the patch in #7 here: http://drupal.org/node/1766012#comment-6939400

This patch will allow us to filter the type of account that is returned. This is useful for authnet_uc to only display saved credit cards. This is also useful for integrating with uc_echecknet as we didn't want credit card accounts showing when a user wants to pay with echeck.

Processing an echeck payment using AIM is almost the same for both credit cards and echecks. The major difference is in the array we pass to the authnet_aim_transaction() function.

The _authnet_uc_aim_transaction() function has the $sale object with the following options.

$sale = array(
  'method' => 'CC', 
  'amount' => $uc_price,
  'card_num' => $order->payment_details['cc_number'],
  'exp_date' => $order->payment_details['cc_exp_month'] .'/'. $order->payment_details['cc_exp_year'],
  'card_code' => $order->payment_details['cc_cvv'],
  //... the rest of the options
);

To get an ECHECK to process we remove the options above and use the following options instead:

$sale = array(
  'method' => 'ECHECK',
  'bank_aba_code' => $order->payment_details['echeck_bank_aba_code'],
  'bank_acct_num' => $order->payment_details['echeck_bank_acct_num'],
  'bank_acct_type' => strtoupper($order->payment_details['echeck_bank_acct_type']),
  'bank_name' => $order->payment_details['echeck_bank_name'],
  'bank_acct_name' => $order->payment_details['echeck_bank_acct_name'],
  'echeck_type' => 'WEB',
  //... the rest of the options
);

As for CIM payments, both credit cards and bank accounts work the same.

My clients needs right now are for ECHECK and CIM to be integrated into their website. So, I went ahead and cloned the uc_echecknet module and made it work with the authnet module using both AIM and CIM based upon this patch (http://drupal.org/node/1766012#comment-6939400). I guess my question is: does it make more sense to roll the cloned module I have completed in with the authnet api OR keep the uc_echecknet module separate but dependent upon the authnet api module?

Let me know your thoughts.