civi prorated membership

prorated.php

function proratedmembership_civicrm_buildAmount($pageType, &$form, &$amount) {
    if (!empty($form->get('mid'))) return;

    $year = date("Y");
    $today = date('Y-m-d');
    $q = 0;
    $holder = [];
    $q1 = array(
        'label' => 1,
        'start' => date('Y-m-d', mktime(0, 0, 0, 1, 1, $year)),
        'end' => date('Y-m-d', mktime(0, 0, 0, 3, date('t', mktime(0, 0, 0, 3, 1, $year)), $year))
    );
    $holder[] = $q1;
    $q2 = array(
        'label' => 2,
        'start' => date('Y-m-d', mktime(0, 0, 0, 4, 1, $year)),
        'end' => date('Y-m-d', mktime(0, 0, 0, 6, date('t', mktime(0, 0, 0, 3, 1, $year)), $year))
    );
    $holder[] = $q2;
    $q3 = array(
        'label' => 3,
        'start' => date('Y-m-d', mktime(0, 0, 0, 7, 1, $year)),
        'end' => date('Y-m-d', mktime(0, 0, 0, 9, date('t', mktime(0, 0, 0, 3, 1, $year)), $year))
    );
    $holder[] = $q3;
    $q4 = array(
        'label' => 4,
        'start' => date('Y-m-d', mktime(0, 0, 0, 10, 1, $year)),
        'end' => date('Y-m-d', mktime(0, 0, 0, 12, date('t', mktime(0, 0, 0, 3, 1, $year)), $year))
    );
    $holder[] = $q4;

    foreach ($holder as $quarter)
    {
        if($today >= $quarter["start"] && $today <= $quarter["end"] )
        {
            $q = $quarter["label"];
            break;
        }
    }
    $priceSetId = $form->get('priceSetId');
    if (!empty($priceSetId)) {
        $feeBlock = &$amount;
        if (!is_array($feeBlock) || empty($feeBlock)) {
            return;
        }

        if ($pageType == 'membership') {

            // echo "<pre style='font-size:9px'>";var_dump($feeBlock);echo "</pre>";die();
            foreach ($feeBlock as &$fee) {
                if (!is_array($fee['options'])) {
                    continue;
                }
                // echo "<pre style='font-size:9px'>";var_dump($fee['options']);echo "</pre>";die();
                foreach ($fee['options'] as &$option) {
                    // echo "<pre style='font-size:9px'>";var_dump($option);echo "</pre>";die();
                    if($option['name'] != "Community" && $option['name'] != "Professional" && $option['name'] != "life" ) {
                        continue;
                    }
                    else {
                        if ($option['amount'] > 0) {
                            $originalAmount = round($option['amount']);
                            $discountAmount = null;
                            switch ($q) {
                                case 1:
                                   //$option['amount'] =  $option['amount'];
                                    break;
                                case 2:
                                    $discountAmount = $option['amount'] * .25;
                                    $option['amount'] = $option['amount'] - ($option['amount'] * .25);
                                    $option['label'] = $option['label'] . "($" . $originalAmount . " - Q2 Prorated: $". $discountAmount . ")";
                                    break;
                                case 3:
                                    $discountAmount = $option['amount'] * .5;
                                    $option['amount'] = $option['amount'] - ($option['amount'] * .5);
                                    $option['label'] = $option['label'] . "($" . $originalAmount . " - Q3 Prorated: $". $discountAmount . ")";
                                    break;
                                case 4:
                                    $discountAmount = $option['amount'] * .75;
                                    $option['amount'] = $option['amount'] - ($option['amount'] * .75);
                                    $option['label'] = $option['label'] . "($" . $originalAmount . " - Q4 Prorated: $". $discountAmount . ")";
                                    break;
                            }
                        }
                    }
                }
            }
            // FIXME: Somewhere between 4.7.15 and 4.7.23 the above stopped working and we have to do the following to make the confirm page show the correct amount.
            $form->_priceSet['fields'] = $feeBlock;
        }
    }
}