<?php
/*
 +--------------------------------------------------------------------+
 | CiviCRM version 4.5                                                |
 +--------------------------------------------------------------------+
 | Copyright CiviCRM LLC (c) 2004-2014                                |
 +--------------------------------------------------------------------+
 | This file is a part of CiviCRM.                                    |
 |                                                                    |
 | CiviCRM is free software; you can copy, modify, and distribute it  |
 | under the terms of the GNU Affero General Public License           |
 | Version 3, 19 November 2007 and the CiviCRM Licensing Exception.   |
 |                                                                    |
 | CiviCRM is distributed in the hope that it will be useful, but     |
 | WITHOUT ANY WARRANTY; without even the implied warranty of         |
 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.               |
 | See the GNU Affero General Public License for more details.        |
 |                                                                    |
 | You should have received a copy of the GNU Affero General Public   |
 | License and the CiviCRM Licensing Exception along                  |
 | with this program; if not, contact CiviCRM LLC                     |
 | at info[AT]civicrm[DOT]org. If you have questions about the        |
 | GNU Affero General Public License or the licensing of CiviCRM,     |
 | see the CiviCRM license FAQ at http://civicrm.org/licensing        |
 +--------------------------------------------------------------------+
*/

/**
 *
 *
 * @package CRM
 * @copyright CiviCRM LLC (c) 2004-2014
 * $Id$
 *
 */

/**
 * This class generates form components for processing Event
 *
 */
class CRM_Event_Form_Registration_Confirm extends CRM_Event_Form_Registration {

  /**
   * The values for the contribution db object
   *
   * @var array
   * @protected
   */
  public $_values;

  /**
   * The total amount
   *
   * @var float
   * @public
   */
  public $_totalAmount;

  /**
   * Set variables up before form is built
   *
   * @return void
   * @access public
   */
  function preProcess() {
    parent::preProcess();

    // lineItem isn't set until Register postProcess
    $this->_lineItem = $this->get('lineItem');

    $this->_params = $this->get('params');
    $this->_params[0]['tax_amount'] = $this->get('tax_amount');

    $this->_params[0]['is_pay_later'] = $this->get('is_pay_later');
    $this->assign('is_pay_later', $this->_params[0]['is_pay_later']);
    if ($this->_params[0]['is_pay_later']) {
      $this->assign('pay_later_receipt', $this->_values['event']['pay_later_receipt']);
    }

    CRM_Utils_Hook::eventDiscount($this, $this->_params);

    if (!empty($this->_params[0]['discount']) && !empty($this->_params[0]['discount']['applied'])) {
      $this->set('hookDiscount', $this->_params[0]['discount']);
      $this->assign('hookDiscount', $this->_params[0]['discount']);
    }

    if ($this->_contributeMode == 'express') {
      $params = array();
      // rfp == redirect from paypal
      $rfp = CRM_Utils_Request::retrieve('rfp', 'Boolean',
        CRM_Core_DAO::$_nullObject, FALSE, NULL, 'GET'
      );

      //we lost rfp in case of additional participant. So set it explicitly.
      if ($rfp || CRM_Utils_Array::value('additional_participants', $this->_params[0], FALSE)) {
        $payment = CRM_Core_Payment::singleton($this->_mode, $this->_paymentProcessor, $this);
        $paymentObjError = ts('The system did not record payment details for this payment and so could not process the transaction. Please report this error to the site administrator.');
        if (is_object($payment))
          $expressParams = $payment->getExpressCheckoutDetails($this->get('token'));
        else
          CRM_Core_Error::fatal($paymentObjError);

        $params['payer'] = $expressParams['payer'];
        $params['payer_id'] = $expressParams['payer_id'];
        $params['payer_status'] = $expressParams['payer_status'];

        CRM_Core_Payment_Form::mapParams($this->_bltID, $expressParams, $params, FALSE);

        // fix state and country id if present
        if (isset($params["billing_state_province_id-{$this->_bltID}"])) {
          $params["billing_state_province-{$this->_bltID}"] = CRM_Core_PseudoConstant::stateProvinceAbbreviation($params["billing_state_province_id-{$this->_bltID}"]);
        }
        if (isset($params['billing_country_id'])) {
          $params["billing_country-{$this->_bltID}"] = CRM_Core_PseudoConstant::countryIsoCode($params["billing_country_id-{$this->_bltID}"]);
        }

        // set a few other parameters for PayPal
        $params['token'] = $this->get('token');
        $params['amount'] = $this->_params[0]['amount'];
        if (!empty($this->_params[0]['discount'])) {
          $params['discount'] = $this->_params[0]['discount'];
          $params['discountAmount'] = $this->_params[0]['discountAmount'];
          $params['discountMessage'] = $this->_params[0]['discountMessage'];
        }
        $params['amount_level'] = $this->_params[0]['amount_level'];
        $params['currencyID'] = $this->_params[0]['currencyID'];
        $params['payment_action'] = 'Sale';

        // also merge all the other values from the profile fields
        $values = $this->controller->exportValues('Register');
        $skipFields = array(
          'amount',
          "street_address-{$this->_bltID}",
          "city-{$this->_bltID}",
          "state_province_id-{$this->_bltID}",
          "postal_code-{$this->_bltID}",
          "country_id-{$this->_bltID}",
        );

        foreach ($values as $name => $value) {
          // skip amount field
          if (!in_array($name, $skipFields)) {
            $params[$name] = $value;
          }
        }
        $this->set('getExpressCheckoutDetails', $params);
      }
      else {
        $params = $this->get('getExpressCheckoutDetails');
      }
      $this->_params[0] = $params;
      $this->_params[0]['is_primary'] = 1;
    }
    else {
      //process only primary participant params.
      $registerParams = $this->_params[0];
      if (isset($registerParams["billing_state_province_id-{$this->_bltID}"])
        && $registerParams["billing_state_province_id-{$this->_bltID}"]
      ) {
        $registerParams["billing_state_province-{$this->_bltID}"] = CRM_Core_PseudoConstant::stateProvinceAbbreviation($registerParams["billing_state_province_id-{$this->_bltID}"]);
      }

      if (isset($registerParams["billing_country_id-{$this->_bltID}"]) && $registerParams["billing_country_id-{$this->_bltID}"]) {
        $registerParams["billing_country-{$this->_bltID}"] = CRM_Core_PseudoConstant::countryIsoCode($registerParams["billing_country_id-{$this->_bltID}"]);
      }
      if (isset($registerParams['credit_card_exp_date'])) {
        $registerParams['year']  = CRM_Core_Payment_Form::getCreditCardExpirationYear($registerParams);
        $registerParams['month'] = CRM_Core_Payment_Form::getCreditCardExpirationMonth($registerParams);
      }
      if ($this->_values['event']['is_monetary']) {
        $registerParams['ip_address'] = CRM_Utils_System::ipAddress();
        $registerParams['currencyID'] = $this->_params[0]['currencyID'];
        $registerParams['payment_action'] = 'Sale';
      }
      //assign back primary participant params.
      $this->_params[0] = $registerParams;
    }

    if ($this->_values['event']['is_monetary']) {
      $this->_params[0]['invoiceID'] = $this->get('invoiceID');
    }
    $this->assign('defaultRole', FALSE);
    if (CRM_Utils_Array::value('defaultRole', $this->_params[0]) == 1) {
      $this->assign('defaultRole', TRUE);
    }

    if (empty($this->_params[0]['participant_role_id']) &&
      $this->_values['event']['default_role_id']
    ) {
      $this->_params[0]['participant_role_id'] = $this->_values['event']['default_role_id'];
    }

    if (isset($this->_values['event']['confirm_title'])) {
      CRM_Utils_System::setTitle($this->_values['event']['confirm_title']);
    }

    if ($this->_pcpId) {
      $params = CRM_Contribute_Form_Contribution_Confirm::processPcp($this, $this->_params[0]);
      $this->_params[0] = $params;
    }

    $this->set('params', $this->_params);
  }

  /**
   * Overwrite action, since we are only showing elements in frozen mode
   * no help display needed
   *
   * @return int
   * @access public
   */
  function getAction() {
    if ($this->_action & CRM_Core_Action::PREVIEW) {
      return CRM_Core_Action::VIEW | CRM_Core_Action::PREVIEW;
    }
    else {
      return CRM_Core_Action::VIEW;
    }
  }

  /**
   * Build the form object
   *
   * @return void
   * @access public
   */
  public function buildQuickForm() {
    $this->assignToTemplate();

    if ($this->_values['event']['is_monetary'] &&
      ($this->_params[0]['amount'] || $this->_params[0]['amount'] == 0)
    ) {
      $this->_amount = array();

      $taxAmount = 0;
      foreach ($this->_params as $k => $v) {
        //display tax amount on confirmation page
        $taxAmount += $v['tax_amount'];
        if (is_array($v)) {
          foreach (array(
            'first_name', 'last_name') as $name) {
            if (isset($v['billing_' . $name]) &&
              !isset($v[$name])
            ) {
              $v[$name] = $v['billing_' . $name];
            }
          }

          if (!empty($v['first_name']) && !empty($v['last_name'])) {
            $append = $v['first_name'] . ' ' . $v['last_name'];
          }
          else {
            //use an email if we have one
            foreach ($v as $v_key => $v_val) {
              if (substr($v_key, 0, 6) == 'email-') {
                $append = $v[$v_key];
              }
            }
          }

          $this->_amount[$k]['amount'] = $v['amount'];
          if (!empty($v['discountAmount'])) {
            $this->_amount[$k]['amount'] -= $v['discountAmount'];
          }

          $this->_amount[$k]['label'] = preg_replace('//', '', $v['amount_level']) . '  -  ' . $append;
          $this->_part[$k]['info'] = CRM_Utils_Array::value('first_name', $v) . ' ' . CRM_Utils_Array::value('last_name', $v);
          if (empty($v['first_name'])) {
            $this->_part[$k]['info'] = $append;
          }
          $this->_totalAmount = $this->_totalAmount + $this->_amount[$k]['amount'];
          if (!empty($v['is_primary'])) {
            $this->set('primaryParticipantAmount', $this->_amount[$k]['amount']);
          }
        }
      }

      $invoiceSettings = CRM_Core_BAO_Setting::getItem(CRM_Core_BAO_Setting::CONTRIBUTE_PREFERENCES_NAME,'contribution_invoice_settings');
      $taxTerm = CRM_Utils_Array::value('tax_term', $invoiceSettings);
      $invoicing = CRM_Utils_Array::value('invoicing', $invoiceSettings);
      if ($invoicing) {
        $this->assign('totalTaxAmount', $taxAmount);
        $this->assign('taxTerm', $taxTerm);
      }
      $this->assign('part', $this->_part);
      $this->set('part', $this->_part);
      $this->assign('amounts', $this->_amount);
      $this->assign('totalAmount', $this->_totalAmount);
      $this->set('totalAmount', $this->_totalAmount);
    }

    if ($this->_priceSetId && !CRM_Core_DAO::getFieldValue('CRM_Price_DAO_PriceSet', $this->_priceSetId, 'is_quick_config')) {
      $lineItemForTemplate = array();
      $getTaxDetails = FALSE;
      foreach ($this->_lineItem as $key => $value) {
        if (!empty($value)) {
          $lineItemForTemplate[$key] = $value;
        }
        if ($invoicing) {
          foreach ($value as $v) {
            if (isset($v['tax_rate'])) {
              $getTaxDetails = TRUE;
            }
          }
        }
      }
      if (!empty($lineItemForTemplate)) {
        $this->assign('lineItem', $lineItemForTemplate);
      }
      $this->assign('getTaxDetails', $getTaxDetails);
    }

    //display additional participants profile.
    self::assignProfiles($this);

    //consider total amount.
    $this->assign('isAmountzero', ($this->_totalAmount <= 0) ? TRUE : FALSE);

    if ($this->_paymentProcessor['payment_processor_type'] == 'Google_Checkout' && empty($this->_params[0]['is_pay_later']) && !($this->_params[0]['amount'] == 0) &&
      !$this->_allowWaitlist && !$this->_requireApproval
    ) {
      $this->_checkoutButtonName = $this->getButtonName('next', 'checkout');
      $this->add('image',
        $this->_checkoutButtonName,
        $this->_paymentProcessor['url_button'],
        array('class' => 'crm-form-submit')
      );

      $this->addButtons(array(
          array(
            'type' => 'back',
            'name' => ts('<< Go Back'),
          ),
        )
      );
    }
    else {
      $contribButton = ts('Continue >>');
      $this->addButtons(array(
          array(
            'type' => 'back',
            'name' => ts('<< Go Back'),
          ),
          array(
            'type' => 'next',
            'name' => $contribButton,
            'isDefault' => TRUE,
            'js' => array('onclick' => "return submitOnce(this,'" . $this->_name . "','" . ts('Processing') . "');"),
          ),
        )
      );
    }

    $defaults = array();
    $fields = array();
    if (!empty($this->_fields)) {
      foreach ($this->_fields as $name => $dontCare) {
        $fields[$name] = 1;
      }
    }
    $fields["billing_state_province-{$this->_bltID}"] = $fields["billing_country-{$this->_bltID}"] = $fields["email-{$this->_bltID}"] = 1;
    foreach ($fields as $name => $dontCare) {
      if (isset($this->_params[0][$name])) {
        $defaults[$name] = $this->_params[0][$name];
        if (substr($name, 0, 7) == 'custom_') {
          $timeField = "{$name}_time";
          if (isset($this->_params[0][$timeField])) {
            $defaults[$timeField] = $this->_params[0][$timeField];
          }
          if (isset($this->_params[0]["{$name}_id"])) {
            $defaults["{$name}_id"] = $this->_params[0]["{$name}_id"];
          }
        }
        elseif (in_array($name, CRM_Contact_BAO_Contact::$_greetingTypes)
          && !empty($this->_params[0][$name . '_custom'])
        ) {
          $defaults[$name . '_custom'] = $this->_params[0][$name . '_custom'];
        }
      }
    }

    $this->setDefaults($defaults);
    $this->freeze();

    //lets give meaningful status message, CRM-4320.
    $this->assign('isOnWaitlist', $this->_allowWaitlist);
    $this->assign('isRequireApproval', $this->_requireApproval);

    // Assign Participant Count to Lineitem Table
    $this->assign('pricesetFieldsCount', CRM_Price_BAO_PriceSet::getPricesetCount($this->_priceSetId));
  }

  /**
   * Process the form submission
   *
   * @access public
   *
   * @return void
   */
  public function postProcess() {
    $now           = date('YmdHis');

    $this->_params = $this->get('params');
    if (!empty($this->_params[0]['contact_id'])) {
      // unclear when this would be set & whether it could be checked in getContactID.
      // perhaps it relates to when cid is in the url
      //@todo someone who knows add comments on the various contactIDs in this form
      $contactID = $this->_params[0]['contact_id'];
    }
    else {
      $contactID = $this->getContactID();
    }

    // if a discount has been applied, lets now deduct it from the amount
    // and fix the fee level
    if (!empty($this->_params[0]['discount']) && !empty($this->_params[0]['discount']['applied'])) {
      foreach ($this->_params as $k => $v) {
        if (CRM_Utils_Array::value('amount', $this->_params[$k]) > 0 && !empty($this->_params[$k]['discountAmount'])) {
          $this->_params[$k]['amount'] -= $this->_params[$k]['discountAmount'];
          $this->_params[$k]['amount_level'] .= CRM_Utils_Array::value('discountMessage', $this->_params[$k]);
        }
      }
      $this->set('params', $this->_params);
    }

    // CRM-4320, lets build array of cancelled additional participant ids
    // those are drop or skip by primary at the time of confirmation.
    // get all in and then unset those we want to process.
    $cancelledIds = $this->_additionalParticipantIds;

    $params = $this->_params;
    if ($this->_values['event']['is_monetary']) {
      $this->set('finalAmount', $this->_amount);
    }
    $participantCount = array();

    //unset the skip participant from params.
    //build the $participantCount array.
    //maintain record for all participants.
    foreach ($params as $participantNum => $record) {
      if ($record == 'skip') {
        unset($params[$participantNum]);
        $participantCount[$participantNum] = 'skip';
      }
      elseif ($participantNum) {
        $participantCount[$participantNum] = 'participant';
      }

      //lets get additional participant id to cancel.
      if ($this->_allowConfirmation && is_array($cancelledIds)) {
        $additonalId = CRM_Utils_Array::value('participant_id', $record);
        if ($additonalId && $key = array_search($additonalId, $cancelledIds)) {
          unset($cancelledIds[$key]);
        }
      }
    }

    $payment = $registerByID = $primaryCurrencyID = $contribution = NULL;
    $paymentObjError = ts('The system did not record payment details for this payment and so could not process the transaction. Please report this error to the site administrator.');

    $this->participantIDS = array();
    $fields = array();
    foreach ($params as $key => $value) {
      CRM_Event_Form_Registration_Confirm::fixLocationFields($value, $fields, $this);
      //unset the billing parameters if it is pay later mode
      //to avoid creation of billing location
      if ($this->_allowWaitlist
        || $this->_requireApproval
        || (!empty($value['is_pay_later']) && !$this->_isBillingAddressRequiredForPayLater)
        || empty($value['is_primary'])
      ) {
        $billingFields = array(
          "email-{$this->_bltID}",
          'billing_first_name',
          'billing_middle_name',
          'billing_last_name',
          "billing_street_address-{$this->_bltID}",
          "billing_city-{$this->_bltID}",
          "billing_state_province-{$this->_bltID}",
          "billing_state_province_id-{$this->_bltID}",
          "billing_postal_code-{$this->_bltID}",
          "billing_country-{$this->_bltID}",
          "billing_country_id-{$this->_bltID}",
          "address_name-{$this->_bltID}",
        );
        foreach ($billingFields as $field) {
          unset($value[$field]);
        }
        if (!empty($value['is_pay_later'])) {
          $this->_values['params']['is_pay_later'] = TRUE;
        }
      }

      //Unset ContactID for additional participants and set RegisterBy Id.
      if (empty($value['is_primary'])) {
        $contactID = CRM_Utils_Array::value('contact_id', $value);
        $registerByID = $this->get('registerByID');
        if ($registerByID) {
          $value['registered_by_id'] = $registerByID;
        }
      }
      else {
        $value['amount'] = $this->_totalAmount;
      }

      $contactID = CRM_Event_Form_Registration_Confirm::updateContactFields($contactID, $value, $fields, $this);

      // lets store the contactID in the session
      // we dont store in userID in case the user is doing multiple
      // transactions etc
      // for things like tell a friend
      if (!$this->getContactID() && !empty($value['is_primary'])) {
        $session = CRM_Core_Session::singleton();
        $session->set('transaction.userID', $contactID);
      }

      $value['description'] = ts('Online Event Registration') . ': ' . $this->_values['event']['title'];
      $value['accountingCode'] = CRM_Utils_Array::value('accountingCode',
        $this->_values['event']
      );

      // required only if paid event
      if ($this->_values['event']['is_monetary']) {
        if (is_array($this->_paymentProcessor)) {
          $payment = CRM_Core_Payment::singleton($this->_mode, $this->_paymentProcessor, $this);
        }
        $pending = FALSE;
        $result = NULL;

        if ($this->_allowWaitlist || $this->_requireApproval) {
          //get the participant statuses.
          $waitingStatuses = CRM_Event_PseudoConstant::participantStatus(NULL, "class = 'Waiting'");
          if ($this->_allowWaitlist) {
            $value['participant_status_id'] = $value['participant_status'] = array_search('On waitlist', $waitingStatuses);
          }
          else {
            $value['participant_status_id'] = $value['participant_status'] = array_search('Awaiting approval', $waitingStatuses);
          }

          //there might be case user seleted pay later and
          //now becomes part of run time waiting list.
          $value['is_pay_later'] = FALSE;
        }
        elseif (!empty($value['is_pay_later']) ||
          $value['amount'] == 0 ||
          $this->_contributeMode == 'checkout' ||
          $this->_contributeMode == 'notify'
        ) {
          if ($value['amount'] != 0) {
            $pending = TRUE;
            //get the participant statuses.
            $pendingStatuses = CRM_Event_PseudoConstant::participantStatus(NULL, "class = 'Pending'");
            $status = !empty($value['is_pay_later']) ? 'Pending from pay later' : 'Pending from incomplete transaction';
            $value['participant_status_id'] = $value['participant_status'] = array_search($status, $pendingStatuses);
          }
        }
        elseif ($this->_contributeMode == 'express' && !empty($value['is_primary'])) {
          if (is_object($payment))
            $result = $payment->doExpressCheckout($value);
          else
            CRM_Core_Error::fatal($paymentObjError);
        }
        elseif (!empty($value['is_primary'])) {
          CRM_Core_Payment_Form::mapParams($this->_bltID, $value, $value, TRUE);
          // payment email param can be empty for _bltID mapping
          // thus provide mapping for it with a different email value
          if (empty($value['email'])) {
            $value['email'] = CRM_Utils_Array::valueByRegexKey('/^email-/', $value);
          }

          if (is_object($payment)) {
            $result = $payment->doDirectPayment($value);
          }
          else {
            CRM_Core_Error::fatal($paymentObjError);
          }
        }

        if (is_a($result, 'CRM_Core_Error')) {
          CRM_Core_Error::displaySessionError($result);
          CRM_Utils_System::redirect(CRM_Utils_System::url('civicrm/event/register', "id={$this->_eventId}"));
        }

        if ($result) {
          $value = array_merge($value, $result);
        }

        $value['receive_date'] = $now;
        if ($this->_allowConfirmation) {
          $value['participant_register_date'] = $this->_values['participant']['register_date'];
        }

        $createContrib = ($value['amount'] != 0) ? TRUE : FALSE;
        // force to create zero amount contribution, CRM-5095
        if (!$createContrib && ($value['amount'] == 0)
          && $this->_priceSetId && $this->_lineItem
        ) {
          $createContrib = TRUE;
        }

        if ($createContrib && !empty($value['is_primary']) &&
          !$this->_allowWaitlist && !$this->_requireApproval
        ) {
          // if paid event add a contribution record
          //if primary participant contributing additional amount
          //append (multiple participants) to its fee level. CRM-4196.
          $isAdditionalAmount = FALSE;
          if (count($params) > 1) {
            $isAdditionalAmount = TRUE;
          }

          //passing contribution id is already registered.
          $contribution =
            self::processContribution($this, $value, $result, $contactID, $pending, $isAdditionalAmount);
          $value['contributionID'] = $contribution->id;
          $value['contributionTypeID'] = $contribution->financial_type_id;
          $value['receive_date'] = $contribution->receive_date;
          $value['trxn_id'] = $contribution->trxn_id;
          $value['contributionID'] = $contribution->id;
          $value['contributionTypeID'] = $contribution->financial_type_id;
        }
        $value['contactID'] = $contactID;
        $value['eventID']   = $this->_eventId;
        $value['item_name'] = $value['description'];
      }

      if (!empty($value['contributionID'])) {
        $this->_values['contributionId'] = $value['contributionID'];
      }

      //CRM-4453.
      if (!empty($value['is_primary'])) {
        $primaryCurrencyID = CRM_Utils_Array::value('currencyID', $value);
      }
      if (empty($value['currencyID'])) {
        $value['currencyID'] = $primaryCurrencyID;
      }

      // CRM-11182 - Confirmation page might not be monetary
      if ($this->_values['event']['is_monetary']) {
        if (!$pending && !empty($value['is_primary']) &&
          !$this->_allowWaitlist && !$this->_requireApproval
        ) {
          // transactionID & receive date required while building email template
          $this->assign('trxn_id', $value['trxn_id']);
          $this->assign('receive_date', CRM_Utils_Date::mysqlToIso($value['receive_date']));
          $this->set('receiveDate', CRM_Utils_Date::mysqlToIso($value['receive_date']));
          $this->set('trxnId', CRM_Utils_Array::value('trxn_id', $value));
        }
      }

      $value['fee_amount'] = CRM_Utils_Array::value('amount', $value);
      $this->set('value', $value);

      // handle register date CRM-4320
      if ($this->_allowConfirmation) {
        $registerDate = CRM_Utils_Array::value( 'participant_register_date', $params );
      }
      elseif (!empty($params['participant_register_date']) &&
        is_array($params['participant_register_date']) &&
        !empty($params['participant_register_date'])
      ) {
        $registerDate = CRM_Utils_Date::format($params['participant_register_date']);
      }
      else {
        $registerDate = date('YmdHis');
      }
      $this->assign('register_date', $registerDate);

      $this->confirmPostProcess($contactID, $contribution, $payment);
    }

    //handle if no additional participant.
    if (!$registerByID) {
      $registerByID = $this->get('registerByID');
    }

    $this->set('participantIDs', $this->_participantIDS);

    // create line items, CRM-5313
    if ($this->_priceSetId &&
      !empty($this->_lineItem)
    ) {
      // take all processed participant ids.
      $allParticipantIds = $this->_participantIDS;

      // when participant re-walk wizard.
      if ($this->_allowConfirmation &&
        !empty($this->_additionalParticipantIds)
      ) {
        $allParticipantIds = array_merge(array($registerByID), $this->_additionalParticipantIds);
      }

      $entityTable = 'civicrm_participant';
      $invoiceSettings = CRM_Core_BAO_Setting::getItem(CRM_Core_BAO_Setting::CONTRIBUTE_PREFERENCES_NAME,'contribution_invoice_settings');
      $invoicing = CRM_Utils_Array::value('invoicing', $invoiceSettings);
      $totalTaxAmount = 0;
      $dataArray = array();
      foreach ($this->_lineItem as $key => $value) {
        if (($value != 'skip') &&
          ($entityId = CRM_Utils_Array::value($key, $allParticipantIds))
        ) {

          // do cleanup line  items if participant re-walking wizard.
          if ($this->_allowConfirmation) {
            CRM_Price_BAO_LineItem::deleteLineItems($entityId, $entityTable);
          }
          $lineItem[$this->_priceSetId] = $value;
          CRM_Price_BAO_LineItem::processPriceSet($entityId, $lineItem, $contribution, $entityTable);
        }
        if ($invoicing) {
          foreach ($value as $line) {
            if (isset($line['tax_amount']) && isset($line['tax_rate'])) {
              $totalTaxAmount = $line['tax_amount'] + $totalTaxAmount;
              if (isset($dataArray[$line['tax_rate']])) {
                $dataArray[$line['tax_rate']] = $dataArray[$line['tax_rate']] + CRM_Utils_Array::value('tax_amount', $line);
              }
              else {
                $dataArray[$line['tax_rate']] = CRM_Utils_Array::value('tax_amount', $line);
              }
            }
          }
        }
      }
      if ($invoicing) {
        $this->assign('dataArray', $dataArray);
        $this->assign('totalTaxAmount', $totalTaxAmount);
      }
    }

    //update status and send mail to cancelled additonal participants, CRM-4320
    if ($this->_allowConfirmation && is_array($cancelledIds) && !empty($cancelledIds)) {
      $cancelledId = array_search('Cancelled',
        CRM_Event_PseudoConstant::participantStatus(NULL, "class = 'Negative'")
      );
      CRM_Event_BAO_Participant::transitionParticipants($cancelledIds, $cancelledId);
    }

    $isTest = FALSE;
    if ($this->_action & CRM_Core_Action::PREVIEW) {
      $isTest = TRUE;
    }

    // for Transfer checkout.
    if (($this->_contributeMode == 'checkout' ||
        $this->_contributeMode == 'notify'
      ) && empty($params[0]['is_pay_later']) &&
      !$this->_allowWaitlist && !$this->_requireApproval &&
      $this->_totalAmount > 0
    ) {

      $primaryParticipant = $this->get('primaryParticipant');

      if (empty($primaryParticipant['participantID'])) {
        $primaryParticipant['participantID'] = $registerByID;
      }

      //build an array of custom profile and assigning it to template
      $customProfile = CRM_Event_BAO_Event::buildCustomProfile($registerByID, $this->_values, NULL, $isTest);
      if (count($customProfile)) {
        $this->assign('customProfile', $customProfile);
        $this->set('customProfile', $customProfile);
      }

      // do a transfer only if a monetary payment greater than 0
      if ($this->_values['event']['is_monetary'] && $primaryParticipant) {
        if ($payment && is_object($payment)) {
          //CRM 14512 provide line items of all participants to payment gateway
          $primaryContactId = $this->get('primaryContactId');

          //build an array of cId/pId of participants
          $additionalIDs = CRM_Event_BAO_Event::buildCustomProfile($registerByID, NULL, $primaryContactId, $isTest, TRUE);

          //need to copy, since we are unsetting on the way.
          $copyParticipantCountLines = $participantCount;

          //lets carry all participant params w/ values.
          foreach ($additionalIDs as $participantID => $contactId) {
            $participantNum = NULL;
            $participantNum = $participantID;
            if ($participantID == $registerByID) {
              $participantNum = 0;  // is primary particpant
            }
            else {
              if ($participantNum = array_search('participant', $copyParticipantCountLines)) {
                //if no participant found break.
                if ($participantNum === NULL) {
                  break;
                }
                //unset current particpant so we don't check them again
                unset($copyParticipantCountLines[$participantNum]);
              }
            }
            // get values of line items
            if ($this->_amount) {
              $amount = array();
              $amount[$participantNum]['label'] = preg_replace('//', '', $params[$participantNum]['amount_level']);
              $amount[$participantNum]['amount'] = $params[$participantNum]['amount'];
              $params[$participantNum]['amounts'] = $amount;
            }

            if (!empty($this->_lineItem)) {
              $lineItems  = $this->_lineItem;
              $lineItem   = array();
              if ($lineItemValue = CRM_Utils_Array::value($participantNum, $lineItems)) {
                $lineItem[] = $lineItemValue;
              }
              $params[$participantNum]['lineItem'] = $lineItem;
            }

            //only add additional particpants and not the primary particpant as we already have that
            //added to $primaryParticipant so that this change doesn't break or require changes to
            //existing gateway implementations
            $primaryParticipant['participants_info'][$participantID] = $params[$participantNum];
          }

          //get event custom field information
          $groupTree = CRM_Core_BAO_CustomGroup::getTree('Event', $this, $this->_eventId, 0, $this->_values['event']['event_type_id']);
          $primaryParticipant['eventCustomFields'] = $groupTree;

          // call postprocess hook before leaving
          $this->postProcessHook();
          // this does not return
          $payment->doTransferCheckout($primaryParticipant, 'event');
        }
        else {
          CRM_Core_Error::fatal($paymentObjError);
        }
      }
    }
    else {
      //otherwise send mail Confirmation/Receipt
      $primaryContactId = $this->get('primaryContactId');

      //build an array of cId/pId of participants
      $additionalIDs = CRM_Event_BAO_Event::buildCustomProfile($registerByID,
        NULL, $primaryContactId, $isTest,
        TRUE
      );
      //lets send  mails to all with meaningful text, CRM-4320.
      $this->assign('isOnWaitlist', $this->_allowWaitlist);
      $this->assign('isRequireApproval', $this->_requireApproval);

      //need to copy, since we are unsetting on the way.
      $copyParticipantCount = $participantCount;

      //lets carry all paticipant params w/ values.
      foreach ($additionalIDs as $participantID => $contactId) {
        $participantNum = NULL;
        if ($participantID == $registerByID) {
          $participantNum = 0;
        }
        else {
          if ($participantNum = array_search('participant', $copyParticipantCount)) {
            unset($copyParticipantCount[$participantNum]);
          }
        }
        if ($participantNum === NULL)
        break;

        //carry the participant submitted values.
        $this->_values['params'][$participantID] = $params[$participantNum];
      }

      foreach ($additionalIDs as $participantID => $contactId) {
        $participantNum = 0;
        if ($participantID == $registerByID) {
          //set as Primary Participant
          $this->assign('isPrimary', 1);
          //build an array of custom profile and assigning it to template.
          $customProfile = CRM_Event_BAO_Event::buildCustomProfile($participantID, $this->_values, NULL, $isTest);

          if (count($customProfile)) {
            $this->assign('customProfile', $customProfile);
            $this->set('customProfile', $customProfile);
          }
          $this->_values['params']['additionalParticipant'] = FALSE;
        }
        else {
          //take the Additional participant number.
          if ($participantNum = array_search('participant', $participantCount)) {
            unset($participantCount[$participantNum]);
          }
          $this->assign('isPrimary', 0);
          $this->assign('customProfile', NULL);
          //Additional Participant should get only it's payment information
          if (!empty($this->_amount)) {
            $amount = array();
            $params = $this->get('params');
            $amount[$participantNum]['label'] = preg_replace('//', '', $params[$participantNum]['amount_level']);
            $amount[$participantNum]['amount'] = $params[$participantNum]['amount'];
            $this->assign('amounts', $amount);
          }
          if ($this->_lineItem) {
            $lineItems  = $this->_lineItem;
            $lineItem   = array();
            if ($lineItemValue = CRM_Utils_Array::value($participantNum, $lineItems)) {
              $lineItem[] = $lineItemValue;
            }
            $this->assign('lineItem', $lineItem);
          }
          $this->_values['params']['additionalParticipant'] = TRUE;
          $this->assign('isAdditionalParticipant', $this->_values['params']['additionalParticipant']);
        }

        //pass these variables since these are run time calculated.
        $this->_values['params']['isOnWaitlist'] = $this->_allowWaitlist;
        $this->_values['params']['isRequireApproval'] = $this->_requireApproval;

        //send mail to primary as well as additional participants.
        $this->assign('contactID', $contactId);
        $this->assign('participantID', $participantID);
        CRM_Event_BAO_Event::sendMail($contactId, $this->_values, $participantID, $isTest);
      }
    }
  }

  /**
   * Process the contribution
   *
   * @param CRM_Core_Form $form
   * @param array $params
   * @param $result
   * @param int $contactID
   * @param bool $pending
   * @param bool $isAdditionalAmount
   *
   * @return void
   * @access public
   */
  static function processContribution(&$form, $params, $result, $contactID,
    $pending = FALSE, $isAdditionalAmount = FALSE
  ) {
    $transaction = new CRM_Core_Transaction();

    $now         = date('YmdHis');
    $receiptDate = NULL;

    if (!empty($form->_values['event']['is_email_confirm'])) {
      $receiptDate = $now;
    }
    //CRM-4196
    if ($isAdditionalAmount) {
      $params['amount_level'] = $params['amount_level'] . ts(' (multiple participants)') . CRM_Core_DAO::VALUE_SEPARATOR;
    }

    $contribParams = array(
      'contact_id' => $contactID,
      'financial_type_id'     => !empty($form->_values['event']['financial_type_id']) ?
      $form->_values['event']['financial_type_id'] : $params['financial_type_id'],
      'receive_date' => $now,
      'total_amount' => $params['amount'],
      'tax_amount' => $params['tax_amount'],
      'amount_level' => $params['amount_level'],
      'invoice_id' => $params['invoiceID'],
      'currency' => $params['currencyID'],
      'source' => !empty($params['participant_source']) ? $params['participant_source'] : $params['description'],
      'is_pay_later' => CRM_Utils_Array::value('is_pay_later', $params, 0),
      'campaign_id' => CRM_Utils_Array::value('campaign_id', $params),
    );

    if (empty($params['is_pay_later'])) {
      $contribParams['payment_instrument_id'] = 1;
    }

    if (!$pending && $result) {
      $contribParams += array(
        'fee_amount' => CRM_Utils_Array::value('fee_amount', $result),
        'net_amount' => CRM_Utils_Array::value('net_amount', $result, $params['amount']),
        'trxn_id' => $result['trxn_id'],
        'receipt_date' => $receiptDate,
      );
    }

    $allStatuses = CRM_Contribute_PseudoConstant::contributionStatus(NULL, 'name');
    $contribParams['contribution_status_id'] = array_search('Completed', $allStatuses);
    if ($pending) {
      $contribParams['contribution_status_id'] = array_search('Pending', $allStatuses);
    }

    $contribParams['is_test'] = 0;
    if ($form->_action & CRM_Core_Action::PREVIEW || CRM_Utils_Array::value('mode', $params) == 'test') {
      $contribParams['is_test'] = 1;
    }

    $contribID = NULL;
    if (!empty($contribParams['invoice_id'])) {
      $contribID = CRM_Core_DAO::getFieldValue('CRM_Contribute_DAO_Contribution',
        $contribParams['invoice_id'],
        'id',
        'invoice_id'
      );
    }

    $ids = array();
    if ($contribID) {
      $ids['contribution'] = $contribID;
      $contribParams['id'] = $contribID;
    }

    //create an contribution address
    if ($form->_contributeMode != 'notify' && empty($params['is_pay_later'])) {
      $contribParams['address_id'] = CRM_Contribute_BAO_Contribution::createAddress($params, $form->_bltID);
    }

    // Prepare soft contribution due to pcp or Submit Credit / Debit Card Contribution by admin.
    if (!empty($params['pcp_made_through_id']) || !empty($params['soft_credit_to'])) {

      // if its due to pcp
      if (!empty($params['pcp_made_through_id'])) {
        $contribSoftContactId = CRM_Core_DAO::getFieldValue('CRM_PCP_DAO_PCP',
          $params['pcp_made_through_id'],
          'contact_id'
        );
      }
      else {
        $contribSoftContactId = CRM_Utils_Array::value('soft_credit_to', $params);
      }

      // Pass these details onto with the contribution to make them
      // available at hook_post_process, CRM-8908
      $contribParams['soft_credit_to'] = $params['soft_credit_to'] = $contribSoftContactId;
    }
    $contribParams['payment_processor'] = CRM_Utils_Array::value('payment_processor', $params);
    $contribParams['skipLineItem'] = 1;
    // create contribution record
    $contribution = CRM_Contribute_BAO_Contribution::add($contribParams, $ids);
    // CRM-11124
    CRM_Event_BAO_Participant::createDiscountTrxn($form->_eventId, $contribParams, CRM_Utils_Array::value('amount_priceset_level_radio', $params, NULL));

    // process soft credit / pcp pages
    CRM_Contribute_Form_Contribution_Confirm::processPcpSoft($params, $contribution);

    $transaction->commit();

    return $contribution;
  }

  /**
   * Fix the Location Fields
   *
   * @param array $params
   * @param $fields
   * @param CRM_Core_Form $form
   *
   * @return void
   * @access public
   */
  public static function fixLocationFields(&$params, &$fields, &$form) {
    if (!empty($form->_fields)) {
      foreach ($form->_fields as $name => $dontCare) {
        $fields[$name] = 1;
      }
    }

    if (is_array($fields)) {
      if (!array_key_exists('first_name', $fields)) {
        $nameFields = array('first_name', 'middle_name', 'last_name');
        foreach ($nameFields as $name) {
          $fields[$name] = 1;
          if (array_key_exists("billing_$name", $params)) {
            $params[$name] = $params["billing_{$name}"];
            $params['preserveDBName'] = TRUE;
          }
        }
      }
    }

    // also add location name to the array
    if ($form->_values['event']['is_monetary']) {
      $params["address_name-{$form->_bltID}"] = CRM_Utils_Array::value('billing_first_name', $params) . ' ' . CRM_Utils_Array::value('billing_middle_name', $params) . ' ' . CRM_Utils_Array::value('billing_last_name', $params);
      $fields["address_name-{$form->_bltID}"] = 1;
    }
    $fields["email-{$form->_bltID}"] = 1;
    $fields['email-Primary'] = 1;

    //if its pay later or additional participant set email address as primary.
    if ((!empty($params['is_pay_later']) || empty($params['is_primary']) ||
        !$form->_values['event']['is_monetary'] ||
        $form->_allowWaitlist ||
        $form->_requireApproval
      ) && !empty($params["email-{$form->_bltID}"])) {
      $params['email-Primary'] = $params["email-{$form->_bltID}"];
    }
  }

  /**
   * Update contact fields
   *
   * @param int $contactID
   * @param array $params
   * @param $fields
   * @param CRM_Core_Form $form
   *
   * @return void
   * @access public
   */
  public static function updateContactFields($contactID, $params, $fields, &$form) {
    //add the contact to group, if add to group is selected for a
    //particular uf group

    // get the add to groups
    $addToGroups = array();

    if (!empty($form->_fields)) {
      foreach ($form->_fields as $key => $value) {
        if (!empty($value['add_to_group_id'])) {
          $addToGroups[$value['add_to_group_id']] = $value['add_to_group_id'];
        }
      }
    }

    // check for profile double opt-in and get groups to be subscribed
    $subscribeGroupIds = CRM_Core_BAO_UFGroup::getDoubleOptInGroupIds($params, $contactID);

    foreach ($addToGroups as $k) {
      if (array_key_exists($k, $subscribeGroupIds)) {
        unset($addToGroups[$k]);
      }
    }

    // since we are directly adding contact to group lets unset it from mailing
    if (!empty($addToGroups)) {
      foreach ($addToGroups as $groupId) {
        if (isset($subscribeGroupIds[$groupId])) {
          unset($subscribeGroupIds[$groupId]);
        }
      }
    }
    if ($contactID) {
      $ctype = CRM_Core_DAO::getFieldValue(
        'CRM_Contact_DAO_Contact',
        $contactID,
        'contact_type'
      );

      if(array_key_exists('contact_id', $params) && empty($params['contact_id'])) {
        // we unset this here because the downstream function ignores the contactID we give it
        // if it is set & it is difficult to understand the implications of 'fixing' this downstream
        // but if we are passing a contact id into this function it's reasonable to assume we don't
        // want it ignored
        unset($params['contact_id']);
      }

      $contactID = CRM_Contact_BAO_Contact::createProfileContact(
        $params,
        $fields,
        $contactID,
        $addToGroups,
        NULL,
        $ctype,
        TRUE
      );
    }
    else {

      foreach (CRM_Contact_BAO_Contact::$_greetingTypes as $greeting) {
        if (!isset($params[$greeting . '_id'])) {
          $params[$greeting . '_id'] = CRM_Contact_BAO_Contact_Utils::defaultGreeting('Individual', $greeting);
        }
      }

      $contactID = CRM_Contact_BAO_Contact::createProfileContact($params,
        $fields,
        NULL,
        $addToGroups,
        NULL,
        NULL,
        TRUE
      );
      $form->set('contactID', $contactID);
    }

    //get email primary first if exist
    $subscribtionEmail = array('email' => CRM_Utils_Array::value('email-Primary', $params));
    if (!$subscribtionEmail['email']) {
      $subscribtionEmail['email'] = CRM_Utils_Array::value("email-{$form->_bltID}", $params);
    }
    // subscribing contact to groups
    if (!empty($subscribeGroupIds) && $subscribtionEmail['email']) {
      CRM_Mailing_Event_BAO_Subscribe::commonSubscribe($subscribeGroupIds, $subscribtionEmail, $contactID);
    }

    return $contactID;
  }

  /**
   * @param $form
   */
  public static function assignProfiles(&$form) {
    $participantParams = $form->_params;
    $formattedValues = $profileFields = array();
    $count             = 1;
    foreach ($participantParams as $participantNum => $participantValue) {
      if ($participantNum) {
          $prefix1 = 'additional';
          $prefix2 = 'additional_';
      } else {
          $prefix1 = '';
          $prefix2 = '';
      }
      if ($participantValue != 'skip') {
        //get the customPre profile info
        if (!empty($form->_values[$prefix2 . 'custom_pre_id'])) {
          $values = $groupName = array();
          CRM_Event_BAO_Event::displayProfile($participantValue,
            $form->_values[ $prefix2 . 'custom_pre_id'],
            $groupName,
            $values,
            $profileFields
          );

          if (count($values)) {
            $formattedValues[$count][$prefix1 . 'CustomPre'] = $values;
          }
          $formattedValues[$count][$prefix1 . 'CustomPreGroupTitle'] = CRM_Utils_Array::value('groupTitle', $groupName);
        }
        //get the customPost profile info
        if (!empty($form->_values[$prefix2 . 'custom_post_id'])) {
          $values = $groupName = array();
          foreach ($form->_values[$prefix2 . 'custom_post_id'] as $gids) {
            $val = array();
            CRM_Event_BAO_Event::displayProfile($participantValue,
              $gids,
              $group,
              $val,
              $profileFields
            );
            $values[$gids] = $val;
            $groupName[$gids] = $group;
          }

          if (count($values)) {
            $formattedValues[$count][$prefix1 . 'CustomPost'] = $values;
          }

          if (isset($formattedValues[$count][$prefix1 . 'CustomPre'])) {
            $formattedValues[$count][$prefix1 . 'CustomPost'] = array_diff_assoc($formattedValues[$count][$prefix1 . 'CustomPost'],
              $formattedValues[$count][$prefix1 . 'CustomPre']
            );
          }

          $formattedValues[$count][$prefix1 . 'CustomPostGroupTitle'] = $groupName;
        }
        $count++;
      }
      $form->_fields = $profileFields;
    }
    if (!empty($formattedValues) ) {
      $form->assign('primaryParticipantProfile', $formattedValues[1]);
      $form->set('primaryParticipantProfile',    $formattedValues[1]);
      if ($count > 2) {
        unset($formattedValues[1]);
        $form->assign('addParticipantProfile', $formattedValues);
        $form->set('addParticipantProfile',    $formattedValues);
      }
    }
  }
}