/**
* Implementation of hook_civicrm_buildAmount()
*
* If the event id of the form being loaded has a discount code, calculate the
* the discount and update the price and label. Apply the initial autodiscount
* based on a users membership.
*
* Check all priceset items and only apply the discount to the discounted items.
*
* @param string $pageType
* @param CRM_Core_Form $form
* @param $amounts
*/
function cividiscount_civicrm_buildAmount($pagetype, &$form, &$amounts)
{
if ((!$form->getVar('_action') || $form->getVar('_action') & CRM_Core_Action::PREVIEW || $form->getVar('_action') & CRM_Core_Action::ADD || $form->getVar('_action') & CRM_Core_Action::UPDATE) && !empty($amounts) && is_array($amounts) && ($pagetype == 'event' || $pagetype == 'membership')) {
if (!$pagetype == 'membership' && in_array(get_class($form), array('CRM_Contribute_Form_Contribution', 'CRM_Contribute_Form_Contribution_Main'))) {
return;
}
// // Don't provide Discount if the logged in user already subscribed to any membership types in the form
$currentMemberships = $form->_currentMemberships;
//if logged in
if (!empty($currentMemberships)) {
$new_member = FALSE;
} else {
// if not logged in
$new_member = validate_email_for_discount($form);
}
/*
Check if a payment type is set for discounts
*/
$payids = array();
$payids = _cividiscount_get_discounted_paymentProcessor_type_ids();
$selectedProcessorValue = $form->_paymentProcessor['payment_processor_type_id'];
$contact_id = _cividiscount_get_form_contact_id($form);
$autodiscount = FALSE;
$eid = $form->getVar('_eventId');
$psid = $form->get('priceSetId');
$ps = $form->get('priceSet');
$v = $form->getVar('_values');
$code = trim(CRM_Utils_Request::retrieve('discountcode', 'String', $form, false, null, 'REQUEST'));
if (!array_key_exists('discountcode', $form->_submitValues) && ($pid = $form->getVar('_participantId')) && $form->getVar('_action') & CRM_Core_Action::UPDATE) {
$code = _cividiscount_get_item_by_track('civicrm_participant', $pid, $contact_id, TRUE);
}
if (!empty($v['currency'])) {
$currency = $v['currency'];
} elseif (!empty($v['event']['currency'])) {
$currency = $v['event']['currency'];
} else {
$currency = CRM_Core_Config::singleton()->defaultCurrency;
}
// If additional participants are not allowed to receive a discount we need
// to interrupt the form processing on build and POST.
// This is a potential landmine if the form processing ever changes in Civi.
if (!_cividiscount_allow_multiple()) {
// POST from participant form to confirm page
if ($form->getVar('_lastParticipant') == 1) {
return;
}
// On build participant form
$keys = array_keys($_GET);
foreach ($keys as $key) {
if (substr($key, 0, 16) == "_qf_Participant_") {
// We can somewhat safely assume we're in the additional participant
// registration form.
// @todo what is the effect of this?
if ($_GET[$key] == 'true') {
return;
}
}
}
}
if (!$new_member && !empty($code)) {
echo "Sorry! Discount is not applicable for renewal!";
return;
}
if (!empty($payids) && !empty($code)) {
if (!in_array($selectedProcessorValue, $payids)) {
echo "Sorry! Discount is only applicable for Direct Debit!";
return;
}
}
$form->set('_discountInfo', NULL);
$dicountCalculater = new CRM_CiviDiscount_DiscountCalculator($pagetype, $eid, $contact_id, $code, FALSE);
$discounts = $dicountCalculater->getDiscounts();
if (!empty($code)) {
if (empty($discounts)) {
$form->set('discountCodeErrorMsg', ts('The discount code you entered is invalid.'));
} else {
/*gets discounts info, even if a discount code is not applicable
for the membership types in the current form */
// Check if a discount code is applicable to any of the membership types in the form
$membership_ids_in_form = membership_type_ids_in_form($form);
$membership_ids_in_dicount_info = array();
foreach ($discounts as $code => $discount) {
$membership_ids_in_dicount_info = $discount['memberships'];
}
if (count(array_intersect($membership_ids_in_dicount_info, $membership_ids_in_form)) == 0) {
$form->set('discountCodeErrorMsg', ts('The discount code you entered is invalid.'));
}
}
}
if (empty($discounts)) {
// Check if a discount is available
if ($pagetype == 'event') {
$discounts = _cividiscount_get_discounts();
foreach ($discounts as $code => $discount) {
if (isset($discount['events']) && array_key_exists($eid, $discount['events']) && $discount['discount_msg_enabled']) {
// Display discount available message
CRM_Core_Session::setStatus(html_entity_decode($discount['discount_msg']), '', 'no-popup');
}
}
}
return;
}
// here we check if discount is configured for events or for membership types.
// There are two scenarios:
// 1. Discount is configure for the event or membership type, in that case we should apply discount only
// if default fee / membership type is configured. ( i.e price set with quick config true )
// 2. Discount is configure at price field level, in this case discount should be applied only for
// that particular price set field.
// here we need to check if selected price set is quick config
$isQuickConfigPriceSet = CRM_CiviDiscount_Utils::checkForQuickConfigPriceSet($psid);
$keys = array_keys($discounts);
$key = array_shift($keys);
// in this case discount is specified for event id or membership type id, so we need to get info of
// associated price set fields. For events discount we already have the list, but for memberships we
// need to filter at membership type level
//retrieve price set field associated with this priceset
$priceSetInfo = CRM_CiviDiscount_Utils::getPriceSetsInfo($psid);
$originalAmounts = $amounts;
//$discount = array_shift($discounts);
foreach ($discounts as $done_care => $discount) {
if (!empty($dicountCalculater->autoDiscounts) && array_key_exists($done_care, $dicountCalculater->autoDiscounts)) {
$autodiscount = TRUE;
} else {
$autodiscount = FALSE;
}
$priceFields = isset($discount['pricesets']) ? $discount['pricesets'] : array();
if (empty($priceFields) && (!empty($code) || $autodiscount)) {
// apply discount to all the price fields for quickconfig pricesets
if ($pagetype == 'event' && $isQuickConfigPriceSet) {
$applyToAllLineItems = TRUE;
if (!empty($key)) {
$discounts[$key]['pricesets'] = array_keys($priceSetInfo);
}
} else {
// filter only valid membership types that have discount
foreach ($priceSetInfo as $pfID => $priceFieldValues) {
if (!empty($priceFieldValues['membership_type_id']) && in_array($priceFieldValues['membership_type_id'], CRM_Utils_Array::value('memberships', $discount, array()))) {
$priceFields[$pfID] = $pfID;
}
}
}
}
$apcount = _cividiscount_checkEventDiscountMultipleParticipants($pagetype, $form, $discount);
if (empty($apcount)) {
//this was set to return but that doesn't make sense as there might be another discount
continue;
}
$discountApplied = FALSE;
if (!empty($autodiscount) || !empty($code)) {
foreach ($amounts as $fee_id => &$fee) {
if (!is_array($fee['options'])) {
continue;
}
foreach ($fee['options'] as $option_id => &$option) {
if (!empty($applyToAllLineItems) || CRM_Utils_Array::value($option['id'], $priceFields)) {
$originalLabel = $originalAmounts[$fee_id]['options'][$option_id]['label'];
$originalAmount = CRM_Utils_Rule::cleanMoney($originalAmounts[$fee_id]['options'][$option_id]['amount']);
list($amount, $label) = _cividiscount_calc_discount($originalAmount, $originalLabel, $discount, $autodiscount, $currency);
$discountAmount = $originalAmounts[$fee_id]['options'][$option_id]['amount'] - $amount;
if ($discountAmount > CRM_Utils_Array::value('discount_applied', $option)) {
$option['amount'] = $amount;
$option['label'] = $label;
$option['discount_applied'] = $discountAmount;
}
$discountApplied = TRUE;
}
}
}
}
}
// this seems to incorrectly set to only the last discount but it seems not to matter in the way it is used
if (isset($discountApplied) && $discountApplied) {
if (!empty($ps['fields'])) {
$ps['fields'] = $amounts;
$form->setVar('_priceSet', $ps);
}
$form->set('_discountInfo', array('discount' => $discount, 'autodiscount' => $autodiscount, 'contact_id' => $contact_id));
}
}
}
