<?php
/*
 +--------------------------------------------------------------------+
 | Copyright CiviCRM LLC. All rights reserved.                        |
 |                                                                    |
 | This work is published under the GNU AGPLv3 license with some      |
 | permitted exceptions and without any warranty. For full license    |
 | and copyright information, see https://civicrm.org/licensing       |
 +--------------------------------------------------------------------+
 */

use Civi\Api4\ContributionRecur;

/**
 *
 * @package CRM
 * @copyright CiviCRM LLC https://civicrm.org/licensing
 */

/**
 * This class generates form components for offline membership form.
 */
class CRM_Member_Form_Membership extends CRM_Member_Form {

  /**
   * IDs of relevant entities.
   *
   * @var array
   */
  protected $ids = [];

  protected $_memType = NULL;

  public $_mode;

  public $_contributeMode = 'direct';

  protected $_recurMembershipTypes;

  protected $_memTypeSelected;

  /**
   * Display name of the member.
   *
   * @var string
   */
  protected $_memberDisplayName = NULL;

  /**
   * email of the person paying for the membership (used for receipts)
   * @var string
   */
  protected $_memberEmail = NULL;

  /**
   * Contact ID of the member.
   *
   * @var int
   */
  public $_contactID = NULL;

  /**
   * Display name of the person paying for the membership (used for receipts)
   *
   * @var string
   */
  protected $_contributorDisplayName = NULL;

  /**
   * Email of the person paying for the membership (used for receipts).
   *
   * @var string
   */
  protected $_contributorEmail;

  /**
   * email of the person paying for the membership (used for receipts)
   *
   * @var int
   */
  protected $_contributorContactID = NULL;

  /**
   * ID of the person the receipt is to go to.
   *
   * @var int
   */
  protected $_receiptContactId = NULL;

  /**
   * Keep a class variable for ALL membership IDs so
   * postProcess hook function can do something with it
   *
   * @var array
   */
  protected $_membershipIDs = [];

  /**
   * Membership created or edited on this form.
   *
   * If a price set creates multiple this will be the last one created.
   *
   * This 'last' bias reflects historical code - but it's mostly used in the receipt
   * and there is all sorts of weird and wonderful handling that potentially compensates.
   *
   * @var array
   */
  protected $membership = [];

  /**
   * Set entity fields to be assigned to the form.
   */
  protected function setEntityFields() {
    $this->entityFields = [
      'join_date' => [
        'name' => 'join_date',
        'description' => ts('Member Since'),
      ],
      'start_date' => [
        'name' => 'start_date',
        'description' => ts('Start Date'),
      ],
      'end_date' => [
        'name' => 'end_date',
        'description' => ts('End Date'),
      ],
    ];
  }

  /**
   * Set the delete message.
   *
   * We do this from the constructor in order to do a translation.
   */
  public function setDeleteMessage() {
    $this->deleteMessage = '<span class="font-red bold">'
      . ts('WARNING: Deleting this membership will also delete any related payment (contribution) records.')
      . ' '
      . ts('This action cannot be undone.')
      . '</span><p>'
      . ts('Consider modifying the membership status instead if you want to maintain an audit trail and avoid losing payment data. You can set the status to Cancelled by editing the membership and clicking the Status Override checkbox.')
      . '</p><p>'
      . ts("Click 'Delete' if you want to continue.") . '</p>';
  }

  /**
   * Overriding this entity trait function as not yet tested.
   *
   * We continue to rely on legacy handling.
   */
  public function addCustomDataToForm() {}

  /**
   * Overriding this entity trait function as not yet tested.
   *
   * We continue to rely on legacy handling.
   */
  public function addFormButtons() {}

  /**
   * Get selected membership type from the form values.
   *
   * @param array $priceSet
   * @param array $params
   *
   * @return array
   * @throws \CRM_Core_Exception
   */
  public static function getSelectedMemberships($priceSet, $params) {
    $memTypeSelected = [];
    $priceFieldIDS = self::getPriceFieldIDs($params, $priceSet);
    if (isset($params['membership_type_id']) && !empty($params['membership_type_id'][1])) {
      $memTypeSelected = [$params['membership_type_id'][1] => $params['membership_type_id'][1]];
    }
    else {
      foreach ($priceFieldIDS as $priceFieldId) {
        if ($id = CRM_Core_DAO::getFieldValue('CRM_Price_DAO_PriceFieldValue', $priceFieldId, 'membership_type_id')) {
          $memTypeSelected[$id] = $id;
        }
      }
    }
    return $memTypeSelected;
  }

  /**
   * Extract price set fields and values from $params.
   *
   * @param array $params
   * @param array $priceSet
   *
   * @return array
   */
  public static function getPriceFieldIDs($params, $priceSet) {
    $priceFieldIDS = [];
    if (isset($priceSet['fields']) && is_array($priceSet['fields'])) {
      foreach ($priceSet['fields'] as $fieldId => $field) {
        if (!empty($params['price_' . $fieldId])) {
          if (is_array($params['price_' . $fieldId])) {
            foreach ($params['price_' . $fieldId] as $priceFldVal => $isSet) {
              if ($isSet) {
                $priceFieldIDS[] = $priceFldVal;
              }
            }
          }
          elseif (!$field['is_enter_qty']) {
            $priceFieldIDS[] = $params['price_' . $fieldId];
          }
        }
      }
    }
    return $priceFieldIDS;
  }

  /**
   * Form preProcess function.
   *
   * @throws \CRM_Core_Exception
   * @throws \CiviCRM_API3_Exception
   */
  public function preProcess() {
    // This string makes up part of the class names, differentiating them (not sure why) from the membership fields.
    $this->assign('formClass', 'membership');
    parent::preProcess();

    // get price set id.
    $this->_priceSetId = $_GET['priceSetId'] ?? NULL;
    $this->set('priceSetId', $this->_priceSetId);
    $this->assign('priceSetId', $this->_priceSetId);

    if ($this->_action & CRM_Core_Action::DELETE) {
      $contributionID = CRM_Member_BAO_Membership::getMembershipContributionId($this->_id);
      // check delete permission for contribution
      if ($this->_id && $contributionID && !CRM_Core_Permission::checkActionPermission('CiviContribute', $this->_action)) {
        CRM_Core_Error::statusBounce(ts("This Membership is linked to a contribution. You must have 'delete in CiviContribute' permission in order to delete this record."));
      }
    }
    $mems_by_org = [];
    if ($this->_action & CRM_Core_Action::ADD) {
      if ($this->_contactID) {
        //check whether contact has a current membership so we can alert user that they may want to do a renewal instead
        $contactMemberships = [];
        $memParams = ['contact_id' => $this->_contactID];
        CRM_Member_BAO_Membership::getValues($memParams, $contactMemberships, TRUE);
        $cMemTypes = [];
        foreach ($contactMemberships as $mem) {
          $cMemTypes[] = $mem['membership_type_id'];
        }
        if (count($cMemTypes) > 0) {
          foreach ($cMemTypes as $memTypeID) {
            $memberorgs[$memTypeID] = CRM_Member_BAO_MembershipType::getMembershipType($memTypeID)['member_of_contact_id'];
          }
          foreach ($contactMemberships as $mem) {
            $mem['member_of_contact_id'] = $memberorgs[$mem['membership_type_id']] ?? NULL;
            if (!empty($mem['membership_end_date'])) {
              $mem['membership_end_date'] = CRM_Utils_Date::customFormat($mem['membership_end_date']);
            }
            $mem['membership_type'] = CRM_Core_DAO::getFieldValue('CRM_Member_DAO_MembershipType',
              $mem['membership_type_id'],
              'name', 'id'
            );
            $mem['membership_status'] = CRM_Core_DAO::getFieldValue('CRM_Member_DAO_MembershipStatus',
              $mem['status_id'],
              'label', 'id'
            );
            $mem['renewUrl'] = CRM_Utils_System::url('civicrm/contact/view/membership',
              "reset=1&action=renew&cid={$this->_contactID}&id={$mem['id']}&context=membership&selectedChild=member"
              . ($this->_mode ? '&mode=live' : '')
            );
            $mem['membershipTab'] = CRM_Utils_System::url('civicrm/contact/view',
              "reset=1&force=1&cid={$this->_contactID}&selectedChild=member"
            );
            $mems_by_org[$mem['member_of_contact_id']] = $mem;
          }
        }
      }
      else {
        // In standalone mode we don't have a contact id yet so lookup will be done client-side with this script:
        $resources = CRM_Core_Resources::singleton();
        $resources->addScriptFile('civicrm', 'templates/CRM/Member/Form/MembershipStandalone.js');
        $passthru = [
          'typeorgs' => CRM_Member_BAO_MembershipType::getMembershipTypeOrganization(),
          'memtypes' => CRM_Core_PseudoConstant::get('CRM_Member_BAO_Membership', 'membership_type_id'),
          'statuses' => CRM_Core_PseudoConstant::get('CRM_Member_BAO_Membership', 'status_id'),
        ];
        $resources->addSetting(['existingMems' => $passthru]);
      }
    }
    $this->assign('existingContactMemberships', $mems_by_org);

    if (!$this->_memType) {
      $params = CRM_Utils_Request::exportValues();
      if (!empty($params['membership_type_id'][1])) {
        $this->_memType = $params['membership_type_id'][1];
      }
    }

    // Add custom data to form
    CRM_Custom_Form_CustomData::addToForm($this, $this->_memType);
    $this->setPageTitle(ts('Membership'));
  }

  /**
   * Set default values for the form.
   */
  public function setDefaultValues() {

    if ($this->_priceSetId) {
      return CRM_Price_BAO_PriceSet::setDefaultPriceSet($this, $defaults);
    }

    $defaults = parent::setDefaultValues();

    //setting default join date and receive date
    if ($this->_action == CRM_Core_Action::ADD) {
      $defaults['receive_date'] = CRM_Utils_Time::date('Y-m-d H:i:s');
    }

    $defaults['num_terms'] = 1;

    if (!empty($defaults['id'])) {
      $contributionId = CRM_Core_DAO::singleValueQuery("
SELECT contribution_id
FROM civicrm_membership_payment
WHERE membership_id = $this->_id
ORDER BY contribution_id
DESC limit 1");

      if ($contributionId) {
        $defaults['record_contribution'] = $contributionId;
      }
    }
    else {
      if ($this->_contactID) {
        $defaults['contact_id'] = $this->_contactID;
      }
    }

    //set Soft Credit Type to Gift by default
    $scTypes = CRM_Core_OptionGroup::values('soft_credit_type');
    $defaults['soft_credit_type_id'] = CRM_Utils_Array::value(ts('Gift'), array_flip($scTypes));

    //CRM-13420
    if (empty($defaults['payment_instrument_id'])) {
      $defaults['payment_instrument_id'] = key(CRM_Core_OptionGroup::values('payment_instrument', FALSE, FALSE, FALSE, 'AND is_default = 1'));
    }

    // User must explicitly choose to send a receipt in both add and update mode.
    $defaults['send_receipt'] = 0;

    if ($this->_action & CRM_Core_Action::UPDATE) {
      // in this mode by default uncheck this checkbox
      unset($defaults['record_contribution']);
    }

    $subscriptionCancelled = FALSE;
    if (!empty($defaults['id'])) {
      $subscriptionCancelled = CRM_Member_BAO_Membership::isSubscriptionCancelled($this->_id);
    }

    $alreadyAutoRenew = FALSE;
    if (!empty($defaults['contribution_recur_id']) && !$subscriptionCancelled) {
      $defaults['auto_renew'] = 1;
      $alreadyAutoRenew = TRUE;
    }
    $this->assign('alreadyAutoRenew', $alreadyAutoRenew);

    $this->assign('member_is_test', $defaults['member_is_test'] ?? NULL);
    $this->assign('membership_status_id', $defaults['status_id'] ?? NULL);
    $this->assign('is_pay_later', !empty($defaults['is_pay_later']));

    if ($this->_mode) {
      $defaults = $this->getBillingDefaults($defaults);
    }

    //setting default join date if there is no join date
    if (empty($defaults['join_date'])) {
      $defaults['join_date'] = CRM_Utils_Time::date('Y-m-d');
    }
    $this->assign('endDate', $defaults['membership_end_date'] ?? NULL);

    return $defaults;
  }

  /**
   * Build the form object.
   *
   * @throws \CRM_Core_Exception
   */
  public function buildQuickForm() {

    $this->buildQuickEntityForm();
    $this->assign('currency_symbol', CRM_Core_BAO_Country::defaultCurrencySymbol());
    $isUpdateToExistingRecurringMembership = $this->isUpdateToExistingRecurringMembership();
    // build price set form.
    $buildPriceSet = FALSE;
    if ($this->_priceSetId || !empty($_POST['price_set_id'])) {
      if (!empty($_POST['price_set_id'])) {
        $buildPriceSet = TRUE;
      }
      $getOnlyPriceSetElements = TRUE;
      if (!$this->_priceSetId) {
        $this->_priceSetId = $_POST['price_set_id'];
        $getOnlyPriceSetElements = FALSE;
      }

      $this->set('priceSetId', $this->_priceSetId);
      CRM_Price_BAO_PriceSet::buildPriceSet($this);

      $optionsMembershipTypes = [];
      foreach ($this->_priceSet['fields'] as $pField) {
        if (empty($pField['options'])) {
          continue;
        }
        foreach ($pField['options'] as $opId => $opValues) {
          $optionsMembershipTypes[$opId] = CRM_Utils_Array::value('membership_type_id', $opValues, 0);
        }
      }

      $this->assign('autoRenewOption', CRM_Price_BAO_PriceSet::checkAutoRenewForPriceSet($this->_priceSetId));

      $this->assign('optionsMembershipTypes', $optionsMembershipTypes);
      $this->assign('contributionType', CRM_Utils_Array::value('financial_type_id', $this->_priceSet));

      // get only price set form elements.
      if ($getOnlyPriceSetElements) {
        return;
      }
    }

    // use to build form during form rule.
    $this->assign('buildPriceSet', $buildPriceSet);

    if ($this->_action & CRM_Core_Action::ADD) {
      $buildPriceSet = FALSE;
      $priceSets = CRM_Price_BAO_PriceSet::getAssoc(FALSE, 'CiviMember');
      if (!empty($priceSets)) {
        $buildPriceSet = TRUE;
      }

      if ($buildPriceSet) {
        $this->add('select', 'price_set_id', ts('Choose price set'),
          [
            '' => ts('Choose price set'),
          ] + $priceSets,
          NULL, ['onchange' => "buildAmount( this.value );"]
        );
      }
      $this->assign('hasPriceSets', $buildPriceSet);
    }

    if ($this->_action & CRM_Core_Action::DELETE) {
      $this->addButtons([
        [
          'type' => 'next',
          'name' => ts('Delete'),
          'spacing' => '&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;',
          'isDefault' => TRUE,
        ],
        [
          'type' => 'cancel',
          'name' => ts('Cancel'),
        ],
      ]);
      return;
    }

    $contactField = $this->addEntityRef('contact_id', ts('Member'), ['create' => TRUE, 'api' => ['extra' => ['email']]], TRUE);
    if ($this->_context !== 'standalone') {
      $contactField->freeze();
    }

    $selOrgMemType[0][0] = $selMemTypeOrg[0] = ts('- select -');

    // Throw status bounce when no Membership type or priceset is present
    if (empty($this->allMembershipTypeDetails) && empty($priceSets)
    ) {
      CRM_Core_Error::statusBounce(ts('You do not have all the permissions needed for this page.'));
    }
    // retrieve all memberships
    $allMembershipInfo = [];
    foreach ($this->allMembershipTypeDetails as $key => $values) {
      if ($this->_mode && empty($values['minimum_fee'])) {
        continue;
      }
      else {
        $memberOfContactId = $values['member_of_contact_id'] ?? NULL;
        if (empty($selMemTypeOrg[$memberOfContactId])) {
          $selMemTypeOrg[$memberOfContactId] = CRM_Core_DAO::getFieldValue('CRM_Contact_DAO_Contact',
            $memberOfContactId,
            'display_name',
            'id'
          );

          $selOrgMemType[$memberOfContactId][0] = ts('- select -');
        }
        if (empty($selOrgMemType[$memberOfContactId][$key])) {
          $selOrgMemType[$memberOfContactId][$key] = $values['name'] ?? NULL;
        }
      }
      $totalAmount = $values['minimum_fee'] ?? NULL;
      // build membership info array, which is used when membership type is selected to:
      // - set the payment information block
      // - set the max related block
      $allMembershipInfo[$key] = [
        'financial_type_id' => $values['financial_type_id'] ?? NULL,
        'total_amount' => CRM_Utils_Money::formatLocaleNumericRoundedForDefaultCurrency($totalAmount),
        'total_amount_numeric' => $totalAmount,
        'auto_renew' => $values['auto_renew'] ?? NULL,
        'tax_rate' => $values['tax_rate'],
        'has_related' => isset($values['relationship_type_id']),
        'max_related' => $values['max_related'] ?? NULL,
      ];
    }

    $this->assign('allMembershipInfo', json_encode($allMembershipInfo));

    // show organization by default, if only one organization in
    // the list
    if (count($selMemTypeOrg) == 2) {
      unset($selMemTypeOrg[0], $selOrgMemType[0][0]);
    }
    //sort membership organization and type, CRM-6099
    natcasesort($selMemTypeOrg);
    foreach ($selOrgMemType as $index => $orgMembershipType) {
      natcasesort($orgMembershipType);
      $selOrgMemType[$index] = $orgMembershipType;
    }

    $memTypeJs = [
      'onChange' => "buildMaxRelated(this.value,true); CRM.buildCustomData('Membership', this.value);",
    ];

    if (!empty($this->_recurPaymentProcessors)) {
      $memTypeJs['onChange'] = "" . $memTypeJs['onChange'] . " buildAutoRenew(this.value, null, '{$this->_mode}');";
    }

    $this->add('text', 'max_related', ts('Max related'),
      CRM_Core_DAO::getAttribute('CRM_Member_DAO_Membership', 'max_related')
    );

    $sel = &$this->addElement('hierselect',
      'membership_type_id',
      ts('Membership Organization and Type'),
      $memTypeJs
    );

    $sel->setOptions([$selMemTypeOrg, $selOrgMemType]);

    if ($this->_action & CRM_Core_Action::ADD) {
      $this->add('number', 'num_terms', ts('Number of Terms'), ['size' => 6]);
    }

    $this->add('text', 'source', ts('Source'),
      CRM_Core_DAO::getAttribute('CRM_Member_DAO_Membership', 'source')
    );

    //CRM-7362 --add campaigns.
    $campaignId = NULL;
    if ($this->_id) {
      $campaignId = CRM_Core_DAO::getFieldValue('CRM_Member_DAO_Membership', $this->_id, 'campaign_id');
    }
    CRM_Campaign_BAO_Campaign::addCampaign($this, $campaignId);

    if (!$this->_mode) {
      $this->add('select', 'status_id', ts('Membership Status'),
        ['' => ts('- select -')] + CRM_Member_PseudoConstant::membershipStatus(NULL, NULL, 'label')
      );

      $statusOverride = $this->addElement('select', 'is_override', ts('Status Override?'),
        CRM_Member_StatusOverrideTypes::getSelectOptions()
      );

      $this->add('datepicker', 'status_override_end_date', ts('Status Override End Date'), '', FALSE, ['minDate' => CRM_Utils_Time::date('Y-m-d'), 'time' => FALSE]);

      $this->addElement('checkbox', 'record_contribution', ts('Record Membership Payment?'));

      $this->add('text', 'total_amount', ts('Amount'));
      $this->addRule('total_amount', ts('Please enter a valid amount.'), 'money');

      $this->add('datepicker', 'receive_date', ts('Received'), [], FALSE, ['time' => TRUE]);

      $this->add('select', 'payment_instrument_id',
        ts('Payment Method'),
        ['' => ts('- select -')] + CRM_Contribute_PseudoConstant::paymentInstrument(),
        FALSE, ['onChange' => "return showHideByValue('payment_instrument_id','4','checkNumber','table-row','select',false);"]
      );
      $this->add('text', 'trxn_id', ts('Transaction ID'));
      $this->addRule('trxn_id', ts('Transaction ID already exists in Database.'),
        'objectExists', [
          'CRM_Contribute_DAO_Contribution',
          $this->_id,
          'trxn_id',
        ]
      );

      $this->add('select', 'contribution_status_id',
        ts('Payment Status'), CRM_Contribute_BAO_Contribution_Utils::getPendingAndCompleteStatuses()
      );
      $this->add('text', 'check_number', ts('Check Number'),
        CRM_Core_DAO::getAttribute('CRM_Contribute_DAO_Contribution', 'check_number')
      );
    }
    else {
      //add field for amount to allow an amount to be entered that differs from minimum
      $this->add('text', 'total_amount', ts('Amount'));
    }
    $this->add('select', 'financial_type_id',
      ts('Financial Type'),
      ['' => ts('- select -')] + CRM_Financial_BAO_FinancialType::getAvailableFinancialTypes($financialTypes, $this->_action)
    );

    $this->addElement('checkbox', 'is_different_contribution_contact', ts('Record Payment from a Different Contact?'));

    $this->addSelect('soft_credit_type_id', ['entity' => 'contribution_soft']);
    $this->addEntityRef('soft_credit_contact_id', ts('Payment From'), ['create' => TRUE]);

    $this->addElement('checkbox',
      'send_receipt',
      ts('Send Confirmation and Receipt?'), NULL,
      ['onclick' => "showEmailOptions()"]
    );

    $this->add('select', 'from_email_address', ts('Receipt From'), $this->_fromEmails);

    $this->add('textarea', 'receipt_text', ts('Receipt Message'));

    // Retrieve the name and email of the contact - this will be the TO for receipt email
    if ($this->_contactID) {
      [$this->_memberDisplayName, $this->_memberEmail] = CRM_Contact_BAO_Contact_Location::getEmailDetails($this->_contactID);
    }
    $this->assign('emailExists', $this->_memberEmail);
    $this->assign('displayName', $this->_memberDisplayName);

    if ($isUpdateToExistingRecurringMembership && CRM_Member_BAO_Membership::isCancelSubscriptionSupported($this->_id)) {
      $this->assign('cancelAutoRenew',
        CRM_Utils_System::url('civicrm/contribute/unsubscribe', "reset=1&mid={$this->_id}")
      );
    }

    $this->assign('isRecur', $isUpdateToExistingRecurringMembership);

    $this->addFormRule(['CRM_Member_Form_Membership', 'formRule'], $this);
    $mailingInfo = Civi::settings()->get('mailing_backend');
    $this->assign('isEmailEnabledForSite', ($mailingInfo['outBound_option'] != 2));

    parent::buildQuickForm();
  }

  /**
   * Validation.
   *
   * @param array $params
   *   (ref.) an assoc array of name/value pairs.
   *
   * @param array $files
   * @param CRM_Member_Form_Membership $self
   *
   * @return bool|array
   *   mixed true or array of errors
   *
   * @throws \CRM_Core_Exception
   * @throws CiviCRM_API3_Exception
   */
  public static function formRule($params, $files, $self) {
    $errors = [];

    $priceSetId = $self->getPriceSetID($params);
    $priceSetDetails = $self->getPriceSetDetails($params);

    $selectedMemberships = self::getSelectedMemberships($priceSetDetails[$priceSetId], $params);

    if (!empty($params['price_set_id'])) {
      CRM_Price_BAO_PriceField::priceSetValidation($priceSetId, $params, $errors);

      $priceFieldIDS = self::getPriceFieldIDs($params, $priceSetDetails[$priceSetId]);

      if (!empty($priceFieldIDS)) {
        $ids = implode(',', $priceFieldIDS);

        $count = CRM_Price_BAO_PriceSet::getMembershipCount($ids);
        foreach ($count as $occurrence) {
          if ($occurrence > 1) {
            $errors['_qf_default'] = ts('Select at most one option associated with the same membership type.');
          }
        }
      }
      // Return error if empty $self->_memTypeSelected
      if (empty($errors) && empty($selectedMemberships)) {
        $errors['_qf_default'] = ts('Select at least one membership option.');
      }
      if (!$self->_mode && empty($params['record_contribution'])) {
        $errors['record_contribution'] = ts('Record Membership Payment is required when you use a price set.');
      }
    }
    else {
      if (empty($params['membership_type_id'][1])) {
        $errors['membership_type_id'] = ts('Please select a membership type.');
      }
      $numterms = $params['num_terms'] ?? NULL;
      if ($numterms && intval($numterms) != $numterms) {
        $errors['num_terms'] = ts('Please enter an integer for the number of terms.');
      }

      if (($self->_mode || isset($params['record_contribution'])) && empty($params['financial_type_id'])) {
        $errors['financial_type_id'] = ts('Please enter the financial Type.');
      }
    }

    if (!empty($errors) && (count($selectedMemberships) > 1)) {
      $memberOfContacts = CRM_Member_BAO_MembershipType::getMemberOfContactByMemTypes($selectedMemberships);
      $duplicateMemberOfContacts = array_count_values($memberOfContacts);
      foreach ($duplicateMemberOfContacts as $countDuplicate) {
        if ($countDuplicate > 1) {
          $errors['_qf_default'] = ts('Please do not select more than one membership associated with the same organization.');
        }
      }
    }

    if (!empty($errors)) {
      return $errors;
    }

    if (!empty($params['record_contribution']) && empty($params['payment_instrument_id'])) {
      $errors['payment_instrument_id'] = ts('Payment Method is a required field.');
    }

    if (!empty($params['is_different_contribution_contact'])) {
      if (empty($params['soft_credit_type_id'])) {
        $errors['soft_credit_type_id'] = ts('Please Select a Soft Credit Type');
      }
      if (empty($params['soft_credit_contact_id'])) {
        $errors['soft_credit_contact_id'] = ts('Please select a contact');
      }
    }

    if (!empty($params['payment_processor_id'])) {
      // validate payment instrument (e.g. credit card number)
      CRM_Core_Payment_Form::validatePaymentInstrument($params['payment_processor_id'], $params, $errors, NULL);
    }

    $joinDate = NULL;
    if (!empty($params['join_date'])) {

      $joinDate = CRM_Utils_Date::processDate($params['join_date']);

      foreach ($selectedMemberships as $memType) {
        $startDate = NULL;
        if (!empty($params['start_date'])) {
          $startDate = CRM_Utils_Date::processDate($params['start_date']);
        }

        // if end date is set, ensure that start date is also set
        // and that end date is later than start date
        $endDate = NULL;
        if (!empty($params['end_date'])) {
          $endDate = CRM_Utils_Date::processDate($params['end_date']);
        }

        $membershipDetails = CRM_Member_BAO_MembershipType::getMembershipType($memType);
        if ($startDate && CRM_Utils_Array::value('period_type', $membershipDetails) === 'rolling') {
          if ($startDate < $joinDate) {
            $errors['start_date'] = ts('Start date must be the same or later than Member since.');
          }
        }

        if ($endDate) {
          if ($membershipDetails['duration_unit'] === 'lifetime') {
            // Check if status is NOT cancelled or similar. For lifetime memberships, there is no automated
            // process to update status based on end-date. The user must change the status now.
            $result = civicrm_api3('MembershipStatus', 'get', [
              'sequential' => 1,
              'is_current_member' => 0,
            ]);
            $tmp_statuses = $result['values'];
            $status_ids = [];
            foreach ($tmp_statuses as $cur_stat) {
              $status_ids[] = $cur_stat['id'];
            }

            if (empty($params['status_id']) || in_array($params['status_id'], $status_ids) == FALSE) {
              $errors['status_id'] = ts('Please enter a status that does NOT represent a current membership status.');
            }

            if (!empty($params['is_override']) && !CRM_Member_StatusOverrideTypes::isPermanent($params['is_override'])) {
              $errors['is_override'] = ts('Because you set an End Date for a lifetime membership, This must be set to "Override Permanently"');
            }
          }
          else {
            if (!$startDate) {
              $errors['start_date'] = ts('Start date must be set if end date is set.');
            }
            if ($endDate < $startDate) {
              $errors['end_date'] = ts('End date must be the same or later than start date.');
            }
          }
        }

        // Default values for start and end dates if not supplied on the form.
        $defaultDates = CRM_Member_BAO_MembershipType::getDatesForMembershipType($memType,
          $joinDate,
          $startDate,
          $endDate
        );

        if (!$startDate) {
          $startDate = CRM_Utils_Array::value('start_date',
            $defaultDates
          );
        }
        if (!$endDate) {
          $endDate = CRM_Utils_Array::value('end_date',
            $defaultDates
          );
        }

        //CRM-3724, check for availability of valid membership status.
        if ((empty($params['is_override']) || CRM_Member_StatusOverrideTypes::isNo($params['is_override'])) && !isset($errors['_qf_default'])) {
          $calcStatus = CRM_Member_BAO_MembershipStatus::getMembershipStatusByDate($startDate,
            $endDate,
            $joinDate,
            'now',
            TRUE,
            $memType,
            $params
          );
          if (empty($calcStatus)) {
            $url = CRM_Utils_System::url('civicrm/admin/member/membershipStatus', 'reset=1&action=browse');
            $errors['_qf_default'] = ts('There is no valid Membership Status available for selected membership dates.');
            $status = ts('Oops, it looks like there is no valid membership status available for the given membership dates. You can <a href="%1">Configure Membership Status Rules</a>.', [1 => $url]);
            if (!$self->_mode) {
              $status .= ' ' . ts('OR You can sign up by setting Status Override? to something other than "NO".');
            }
            CRM_Core_Session::setStatus($status, ts('Membership Status Error'), 'error');
          }
        }
      }
    }
    else {
      $errors['join_date'] = ts('Please enter the Member Since.');
    }

    if (!empty($params['is_override']) && CRM_Member_StatusOverrideTypes::isOverridden($params['is_override']) && empty($params['status_id'])) {
      $errors['status_id'] = ts('Please enter the Membership status.');
    }

    if (!empty($params['is_override']) && CRM_Member_StatusOverrideTypes::isUntilDate($params['is_override'])) {
      if (empty($params['status_override_end_date'])) {
        $errors['status_override_end_date'] = ts('Please enter the Membership override end date.');
      }
    }

    //total amount condition arise when membership type having no
    //minimum fee
    if (isset($params['record_contribution'])) {
      if (CRM_Utils_System::isNull($params['total_amount'])) {
        $errors['total_amount'] = ts('Please enter the contribution.');
      }
    }

    return empty($errors) ? TRUE : $errors;
  }

  /**
   * Process the form submission.
   *
   * @throws \CRM_Core_Exception
   * @throws \CiviCRM_API3_Exception
   */
  public function postProcess() {
    if ($this->_action & CRM_Core_Action::DELETE) {
      CRM_Member_BAO_Membership::del($this->_id);
      return;
    }
    // get the submitted form values.
    $this->_params = $this->controller->exportValues($this->_name);
    $this->prepareStatusOverrideValues();

    $this->submit();

    $this->setUserContext();
  }

  /**
   * Prepares the values related to status override.
   */
  private function prepareStatusOverrideValues() {
    $this->setOverrideDateValue();
    $this->convertIsOverrideValue();
  }

  /**
   * Sets status override end date to empty value if
   * the selected override option is not 'until date'.
   */
  private function setOverrideDateValue() {
    if (!CRM_Member_StatusOverrideTypes::isUntilDate(CRM_Utils_Array::value('is_override', $this->_params))) {
      $this->_params['status_override_end_date'] = '';
    }
  }

  /**
   * Convert the value of selected (status override?)
   * option to TRUE if it indicate an overridden status
   * or FALSE otherwise.
   */
  private function convertIsOverrideValue() {
    $this->_params['is_override'] = CRM_Member_StatusOverrideTypes::isOverridden($this->_params['is_override'] ?? CRM_Member_StatusOverrideTypes::NO);
  }

  /**
   * Send email receipt.
   *
   * @param CRM_Core_Form $form
   *   Form object.
   * @param array $formValues
   *
   * @return bool
   *   true if mail was sent successfully
   * @throws \CRM_Core_Exception
   * @throws \CiviCRM_API3_Exception
   *
   * @deprecated
   *   This function was shared with Batch_Entry which had limited overlap
   *   & needs rationalising.
   *
   */
  protected function emailReceipt($form, &$formValues) {
    $membership = $this->getMembership();
    // retrieve 'from email id' for acknowledgement
    $receiptFrom = $formValues['from_email_address'] ?? NULL;

    // @todo figure out how much of the stuff below is genuinely shared with the batch form & a logical shared place.
    if (!empty($formValues['payment_instrument_id'])) {
      $paymentInstrument = CRM_Contribute_PseudoConstant::paymentInstrument();
      $formValues['paidBy'] = $paymentInstrument[$formValues['payment_instrument_id']];
    }

    $form->assign('module', 'Membership');

    if (!empty($formValues['contribution_id'])) {
      $form->assign('currency', CRM_Core_DAO::getFieldValue('CRM_Contribute_DAO_Contribution', $formValues['contribution_id'], 'currency'));
    }
    else {
      $form->assign('currency', CRM_Core_Config::singleton()->defaultCurrency);
    }

    if (!empty($formValues['contribution_status_id'])) {
      $form->assign('contributionStatusID', $formValues['contribution_status_id']);
      $form->assign('contributionStatus', CRM_Contribute_PseudoConstant::contributionStatus($formValues['contribution_status_id'], 'name'));
    }

    if (!empty($formValues['is_renew'])) {
      $form->assign('receiptType', 'membership renewal');
    }
    else {
      $form->assign('receiptType', 'membership signup');
    }
    $form->assign('receive_date', CRM_Utils_Array::value('receive_date', $formValues));
    $form->assign('formValues', $formValues);

    $form->assign('mem_start_date', CRM_Utils_Date::formatDateOnlyLong($membership['start_date']));
    if (!CRM_Utils_System::isNull($membership['end_date'])) {
      $form->assign('mem_end_date', CRM_Utils_Date::formatDateOnlyLong($membership['end_date']));
    }
    $form->assign('membership_name', CRM_Member_PseudoConstant::membershipType($membership['membership_type_id']));

    if ((empty($form->_contributorDisplayName) || empty($form->_contributorEmail))) {
      // in this case the form is being called statically from the batch editing screen
      // having one class in the form layer call another statically is not greate
      // & we should aim to move this function to the BAO layer in future.
      // however, we can assume that the contact_id passed in by the batch
      // function will be the recipient
      [$form->_contributorDisplayName, $form->_contributorEmail]
        = CRM_Contact_BAO_Contact_Location::getEmailDetails($formValues['contact_id']);
      if (empty($form->_receiptContactId)) {
        $form->_receiptContactId = $formValues['contact_id'];
      }
    }

    CRM_Core_BAO_MessageTemplate::sendTemplate(
      [
        'workflow' => 'membership_offline_receipt',
        'from' => $receiptFrom,
        'toName' => $form->_contributorDisplayName,
        'toEmail' => $form->_contributorEmail,
        'PDFFilename' => ts('receipt') . '.pdf',
        'isEmailPdf' => Civi::settings()->get('invoice_is_email_pdf'),
        'isTest' => (bool) ($form->_action & CRM_Core_Action::PREVIEW),
        'modelProps' => [
          'receiptText' => $this->getSubmittedValue('receipt_text'),
          'contributionId' => $formValues['contribution_id'],
          'contactId' => $form->_receiptContactId,
          'membershipId' => $this->getMembershipID(),
        ],
      ]
    );

    return TRUE;
  }

  /**
   * Submit function.
   *
   * This is also accessed by unit tests.
   *
   * @throws \CRM_Core_Exception
   * @throws \CiviCRM_API3_Exception
   * @throws \API_Exception
   */
  public function submit(): void {
    $this->storeContactFields($this->_params);
    $this->beginPostProcess();

    $params = $softParams = $ids = [];

    $mailSend = FALSE;
    $this->processBillingAddress();
    $formValues = $this->_params;
    $formValues = $this->setPriceSetParameters($formValues);

    if ($this->_id) {
      $ids['membership'] = $params['id'] = $this->_id;
    }

    // Set variables that we normally get from context.
    // In form mode these are set in preProcess.
    //TODO: set memberships, fixme
    $this->setContextVariables($formValues);

    $this->_memTypeSelected = self::getSelectedMemberships(
      $this->_priceSet,
      $formValues
    );
    $formValues['financial_type_id'] = $this->getFinancialTypeID();

    $isQuickConfig = $this->_priceSet['is_quick_config'];

    $lineItem = [$this->order->getPriceSetID() => $this->order->getLineItems()];

    $params['tax_amount'] = $this->order->getTotalTaxAmount();
    $params['total_amount'] = $this->order->getTotalAmount();
    $params['contact_id'] = $this->_contactID;

    $params = array_merge($params, $this->getFormMembershipParams());
    $membershipTypeValues = $this->getMembershipParameters();

    //CRM-13981, allow different person as a soft-contributor of chosen type
    if ($this->_contributorContactID != $this->_contactID) {
      $params['contribution_contact_id'] = $this->_contributorContactID;
      if (!empty($formValues['soft_credit_type_id'])) {
        $softParams['soft_credit_type_id'] = $formValues['soft_credit_type_id'];
        $softParams['contact_id'] = $this->_contactID;
      }
    }

    $pendingMembershipStatusId = CRM_Core_PseudoConstant::getKey('CRM_Member_BAO_Membership', 'status_id', 'Pending');

    if (!empty($formValues['record_contribution'])) {
      $recordContribution = [
        'total_amount',
        'payment_instrument_id',
        'trxn_id',
        'contribution_status_id',
        'check_number',
        'receive_date',
        'card_type_id',
        'pan_truncation',
      ];

      foreach ($recordContribution as $f) {
        $params[$f] = $formValues[$f] ?? NULL;
      }
      $params['financial_type_id'] = $this->getFinancialTypeID();
      $params['campaign_id'] = $this->getSubmittedValue('campaign_id');

      $params['contribution_source'] = $this->getContributionSource();

      $completedContributionStatusId = CRM_Core_PseudoConstant::getKey('CRM_Contribute_BAO_Contribution', 'contribution_status_id', 'Completed');
      if (empty($params['is_override']) &&
        CRM_Utils_Array::value('contribution_status_id', $params) != $completedContributionStatusId
      ) {
        $params['status_id'] = $pendingMembershipStatusId;
        $params['skipStatusCal'] = TRUE;
        $params['is_pay_later'] = 1;
        $this->assign('is_pay_later', 1);
      }

      if ($this->getSubmittedValue('send_receipt')) {
        $params['receipt_date'] = $formValues['receive_date'] ?? NULL;
      }

    }

    // process line items, until no previous line items.
    if (!empty($lineItem)) {
      $params['lineItems'] = $lineItem;
      $params['processPriceSet'] = TRUE;
    }

    if ($this->_mode) {
      $params['total_amount'] = $this->order->getTotalAmount();
      $params['financial_type_id'] = $this->getFinancialTypeID();

      //get the payment processor id as per mode. Try removing in favour of beginPostProcess.
      $params['payment_processor_id'] = $formValues['payment_processor_id'] = $this->getPaymentProcessorID();
      $params['register_date'] = CRM_Utils_Time::date('YmdHis');

      // add all the additional payment params we need
      $formValues['amount'] = $this->order->getTotalAmount();
      $formValues['currencyID'] = $this->getCurrency();
      $formValues['description'] = ts("Contribution submitted by a staff person using member's credit card for signup");
      $formValues['invoiceID'] = $this->getInvoiceID();
      $formValues['financial_type_id'] = $this->getFinancialTypeID();

      // at this point we've created a contact and stored its address etc
      // all the payment processors expect the name and address to be in the
      // so we copy stuff over to first_name etc.
      $paymentParams = $formValues;
      $paymentParams['frequency_unit'] = $this->getFrequencyUnit();
      $paymentParams['frequency_interval'] = $this->getFrequencyInterval();

      $paymentParams['contactID'] = $this->_contributorContactID;
      //CRM-10377 if payment is by an alternate contact then we need to set that person
      // as the contact in the payment params
      if ($this->_contributorContactID != $this->_contactID) {
        if (!empty($formValues['soft_credit_type_id'])) {
          $softParams['contact_id'] = $params['contact_id'];
          $softParams['soft_credit_type_id'] = $formValues['soft_credit_type_id'];
        }
      }
      if ($this->getSubmittedValue('send_receipt')) {
        $paymentParams['email'] = $this->_contributorEmail;
      }

      // This is a candidate for shared beginPostProcess function.
      // @todo Do we need this now we have $this->formatParamsForPaymentProcessor() ?
      CRM_Core_Payment_Form::mapParams($this->_bltID, $formValues, $paymentParams, TRUE);
      // CRM-7137 -for recurring membership,
      // we do need contribution and recurring records.
      $result = NULL;

      $this->_params = $formValues;
      $contribution = civicrm_api3('Order', 'create',
        [
          'contact_id' => $this->_contributorContactID,
          'line_items' => $this->getLineItemForOrderApi(),
          'is_test' => $this->isTest(),
          'campaign_id' => $this->getSubmittedValue('campaign_id'),
          'source' => CRM_Utils_Array::value('source', $paymentParams, CRM_Utils_Array::value('description', $paymentParams)),
          'payment_instrument_id' => $this->getPaymentInstrumentID(),
          'financial_type_id' => $this->getFinancialTypeID(),
          'receive_date' => $this->getReceiveDate(),
          'tax_amount' => $this->order->getTotalTaxAmount(),
          'total_amount' => $this->order->getTotalAmount(),
          'invoice_id' => $this->getInvoiceID(),
          'currency' => $this->getCurrency(),
          'receipt_date' => $this->getSubmittedValue('send_receipt') ? date('YmdHis') : NULL,
          'contribution_recur_id' => $this->getContributionRecurID(),
          'skipCleanMoney' => TRUE,
        ]
      );
      $this->ids['Contribution'] = $contribution['id'];
      $this->setMembershipIDsFromOrder($contribution);

      //create new soft-credit record, CRM-13981
      if ($softParams) {
        $softParams['contribution_id'] = $contribution['id'];
        $softParams['currency'] = $this->getCurrency();
        $softParams['amount'] = $this->order->getTotalAmount();
        CRM_Contribute_BAO_ContributionSoft::add($softParams);
      }

      $paymentParams['contactID'] = $this->_contactID;
      $paymentParams['contributionID'] = $contribution['id'];

      $paymentParams['contributionRecurID'] = $this->getContributionRecurID();
      $paymentParams['is_recur'] = $this->isCreateRecurringContribution();
      $params['contribution_id'] = $paymentParams['contributionID'];
      $params['contribution_recur_id'] = $this->getContributionRecurID();

      $paymentStatus = NULL;

      if ($this->order->getTotalAmount() > 0.0) {
        $payment = $this->_paymentProcessor['object'];
        try {
          $result = $payment->doPayment($paymentParams);
          $formValues = array_merge($formValues, $result);
          $paymentStatus = CRM_Core_PseudoConstant::getName('CRM_Contribute_BAO_Contribution', 'contribution_status_id', $formValues['payment_status_id']);
          if (!empty($params['contribution_id']) && $paymentStatus === 'Completed') {
            civicrm_api3('Payment', 'create', [
              'fee_amount' => $result['fee_amount'] ?? 0,
              'total_amount' => $this->order->getTotalAmount(),
              'payment_instrument_id' => $this->getPaymentInstrumentID(),
              'trxn_id' => $result['trxn_id'],
              'contribution_id' => $params['contribution_id'],
              'is_send_contribution_notification' => FALSE,
              'card_type_id' => $this->getCardTypeID(),
              'pan_truncation' => $this->getPanTruncation(),
            ]);
          }
        }
        catch (\Civi\Payment\Exception\PaymentProcessorException $e) {
          if (!empty($paymentParams['contributionID'])) {
            CRM_Contribute_BAO_Contribution::failPayment($paymentParams['contributionID'], $this->_contactID,
              $e->getMessage());
          }
          if ($this->getContributionRecurID()) {
            CRM_Contribute_BAO_ContributionRecur::deleteRecurContribution($this->getContributionRecurID());
          }

          CRM_Core_Session::singleton()->setStatus($e->getMessage());
          CRM_Utils_System::redirect(CRM_Utils_System::url('civicrm/contact/view/membership',
            "reset=1&action=add&cid={$this->_contactID}&context=membership&mode={$this->_mode}"
          ));

        }
      }

      if ($paymentStatus !== 'Completed') {
        $params['status_id'] = $pendingMembershipStatusId;
        $params['skipStatusCal'] = TRUE;
        //as membership is pending set dates to null.
        foreach ($this->_memTypeSelected as $memType) {
          $membershipTypeValues[$memType]['joinDate'] = NULL;
          $membershipTypeValues[$memType]['startDate'] = NULL;
          $membershipTypeValues[$memType]['endDate'] = NULL;
        }
        $startDate = NULL;
      }
      $now = CRM_Utils_Time::date('YmdHis');
      $params['receive_date'] = CRM_Utils_Time::date('Y-m-d H:i:s');
      $params['invoice_id'] = $this->getInvoiceID();
      $params['contribution_source'] = $this->getContributionSource();
      $params['source'] = $formValues['source'] ?: $params['contribution_source'];
      $params['trxn_id'] = $result['trxn_id'] ?? NULL;
      $params['is_test'] = $this->isTest();
      $params['receipt_date'] = NULL;
      if ($this->getSubmittedValue('send_receipt') && $paymentStatus === 'Completed') {
        // @todo this should be updated by the send function once sent rather than
        // set here.
        $params['receipt_date'] = $now;
      }

      $this->set('params', $formValues);
      $this->assign('trxn_id', CRM_Utils_Array::value('trxn_id', $result));
      $this->assign('receive_date',
        CRM_Utils_Date::mysqlToIso($params['receive_date'])
      );

      // required for creating membership for related contacts
      $params['action'] = $this->_action;

      //create membership record.
      $count = 0;
      foreach ($this->_memTypeSelected as $memType) {
        $membershipParams = array_merge($membershipTypeValues[$memType], $params);
        if (isset($result['fee_amount'])) {
          $membershipParams['fee_amount'] = $result['fee_amount'];
        }
        // This is required to trigger the recording of the membership contribution in the
        // CRM_Member_BAO_Membership::Create function.
        // @todo stop setting this & 'teach' the create function to respond to something
        // appropriate as part of our 2-step always create the pending contribution & then finally add the payment
        // process -
        // @see http://wiki.civicrm.org/confluence/pages/viewpage.action?pageId=261062657#Payments&AccountsRoadmap-Movetowardsalwaysusinga2-steppaymentprocess
        $membershipParams['contribution_status_id'] = $result['payment_status_id'] ?? NULL;
        // The earlier process created the line items (although we want to get rid of the earlier one in favour
        // of a single path!
        unset($membershipParams['lineItems']);
        $membershipParams['payment_instrument_id'] = $this->getPaymentInstrumentID();
        // @todo stop passing $ids (membership and userId only are set above)
        $params['contribution'] = $membershipParams['contribution'] ?? NULL;
        unset($params['lineItems']);
      }

    }
    else {
      $params['action'] = $this->_action;
      foreach ($lineItem[$this->_priceSetId] as $id => $lineItemValues) {
        if (empty($lineItemValues['membership_type_id'])) {
          continue;
        }

        // @todo figure out why recieve_date isn't being set right here.
        if (empty($params['receive_date'])) {
          $params['receive_date'] = CRM_Utils_Time::date('Y-m-d H:i:s');
        }
        $membershipParams = array_merge($params, $membershipTypeValues[$lineItemValues['membership_type_id']]);

        if (!empty($softParams)) {
          $params['soft_credit'] = $softParams;
        }
        unset($membershipParams['contribution_status_id']);
        $membershipParams['skipLineItem'] = TRUE;
        unset($membershipParams['lineItems']);
        // @todo stop passing $ids (membership and userId only are set above)
        $this->setMembership((array) CRM_Member_BAO_Membership::create($membershipParams, $ids));
        $lineItem[$this->_priceSetId][$id]['entity_id'] = $this->membership['id'];
        $lineItem[$this->_priceSetId][$id]['entity_table'] = 'civicrm_membership';

      }
      $params['lineItems'] = $lineItem;
      if (!empty($formValues['record_contribution'])) {
        CRM_Member_BAO_Membership::recordMembershipContribution($params);
      }
    }

    $this->updateContributionOnMembershipTypeChange($params);

    if (($this->_action & CRM_Core_Action::UPDATE)) {
      $this->addStatusMessage($this->getStatusMessageForUpdate());
    }
    elseif (($this->_action & CRM_Core_Action::ADD)) {
      $this->addStatusMessage($this->getStatusMessageForCreate());
    }

    // This would always be true as we always add price set id into both
    // quick config & non quick config price sets.
    if (!empty($lineItem[$this->_priceSetId])) {
      foreach ($lineItem[$this->_priceSetId] as & $priceFieldOp) {
        if (!empty($priceFieldOp['membership_type_id'])) {
          $priceFieldOp['start_date'] = $membershipTypeValues[$priceFieldOp['membership_type_id']]['start_date'] ? CRM_Utils_Date::formatDateOnlyLong($membershipTypeValues[$priceFieldOp['membership_type_id']]['start_date']) : '-';
          $priceFieldOp['end_date'] = $membershipTypeValues[$priceFieldOp['membership_type_id']]['end_date'] ? CRM_Utils_Date::formatDateOnlyLong($membershipTypeValues[$priceFieldOp['membership_type_id']]['end_date']) : '-';
        }
        else {
          $priceFieldOp['start_date'] = $priceFieldOp['end_date'] = 'N/A';
        }
      }
      if (Civi::settings()->get('invoicing')) {
        $dataArray = [];
        foreach ($lineItem[$this->_priceSetId] as $key => $value) {
          if (isset($value['tax_amount']) && isset($value['tax_rate'])) {
            if (isset($dataArray[$value['tax_rate']])) {
              $dataArray[$value['tax_rate']] = $dataArray[$value['tax_rate']] + CRM_Utils_Array::value('tax_amount', $value);
            }
            else {
              $dataArray[$value['tax_rate']] = $value['tax_amount'] ?? NULL;
            }
          }
        }

        $this->assign('dataArray', $dataArray);
      }
    }
    $this->assign('lineItem', !empty($lineItem) && !$isQuickConfig ? $lineItem : FALSE);

    $receiptSend = FALSE;
    $contributionId = $this->ids['Contribution'] ?? CRM_Member_BAO_Membership::getMembershipContributionId($this->getMembershipID());
    $membershipIds = $this->_membershipIDs;
    if ($contributionId && !empty($membershipIds)) {
      $contributionDetails = CRM_Contribute_BAO_Contribution::getContributionDetails(
        CRM_Export_Form_Select::MEMBER_EXPORT, $this->_membershipIDs);
      if ($contributionDetails[$this->getMembershipID()]['contribution_status'] === 'Completed') {
        $receiptSend = TRUE;
      }
    }

    $receiptSent = FALSE;
    if ($this->getSubmittedValue('send_receipt') && $receiptSend) {
      $formValues['contact_id'] = $this->_contactID;
      $formValues['contribution_id'] = $contributionId;
      // receipt_text_signup is no longer used in receipts from 5.47
      // but may linger in some sites that have not updated their
      // templates.
      $formValues['receipt_text_signup'] = $formValues['receipt_text'];
      // send email receipt
      $this->assignBillingName();
      $mailSend = $this->emailMembershipReceipt($formValues);
      $receiptSent = TRUE;
    }

    if ($receiptSent && $mailSend) {
      $this->addStatusMessage(ts('A membership confirmation and receipt has been sent to %1.', [1 => $this->_contributorEmail]));
    }

    CRM_Core_Session::setStatus($this->getStatusMessage(), ts('Complete'), 'success');
    $this->setStatusMessage();

    // finally set membership id if already not set
    if (!$this->_id) {
      $this->_id = $this->getMembershipID();
    }
  }

  /**
   * Update related contribution of a membership if update_contribution_on_membership_type_change
   *   contribution setting is enabled and type is changed on edit
   *
   * @param array $inputParams
   *      submitted form values
   *
   * @throws \CRM_Core_Exception
   * @throws \CiviCRM_API3_Exception
   */
  protected function updateContributionOnMembershipTypeChange($inputParams) {
    if (Civi::settings()->get('update_contribution_on_membership_type_change') &&
    // on update
      ($this->_action & CRM_Core_Action::UPDATE) &&
    // if ID is present
      $this->_id &&
    // if selected membership doesn't match with earlier membership
      !in_array($this->_memType, $this->_memTypeSelected)
    ) {
      if ($this->isCreateRecurringContribution()) {
        CRM_Core_Session::setStatus(ts('Associated recurring contribution cannot be updated on membership type change.', ts('Error'), 'error'));
        return;
      }

      // fetch lineitems by updated membership ID
      $lineItems = CRM_Price_BAO_LineItem::getLineItems($this->getMembershipID(), 'membership');
      // retrieve the related contribution ID
      $contributionID = CRM_Core_DAO::getFieldValue(
        'CRM_Member_DAO_MembershipPayment',
        $this->getMembershipID(),
        'contribution_id',
        'membership_id'
      );
      // get price fields of chosen price-set
      $priceSetDetails = CRM_Utils_Array::value(
        $this->_priceSetId,
        CRM_Price_BAO_PriceSet::getSetDetail(
          $this->_priceSetId,
          TRUE,
          TRUE
        )
      );

      // add price field information in $inputParams
      self::addPriceFieldByMembershipType($inputParams, $priceSetDetails['fields'], $this->getMembership()['membership_type_id']);

      // update related contribution and financial records
      CRM_Price_BAO_LineItem::changeFeeSelections(
        $inputParams,
        $this->getMembershipID(),
        'membership',
        $contributionID,
        $priceSetDetails['fields'],
        $lineItems
      );
      CRM_Core_Session::setStatus(ts('Associated contribution is updated on membership type change.'), ts('Success'), 'success');
    }
  }

  /**
   * Add selected price field information in $formValues
   *
   * @param array $formValues
   *      submitted form values
   * @param array $priceFields
   *     Price fields of selected Priceset ID
   * @param int $membershipTypeID
   *     Selected membership type ID
   *
   */
  public static function addPriceFieldByMembershipType(&$formValues, $priceFields, $membershipTypeID) {
    foreach ($priceFields as $priceFieldID => $priceField) {
      if (isset($priceField['options']) && count($priceField['options'])) {
        foreach ($priceField['options'] as $option) {
          if ($option['membership_type_id'] == $membershipTypeID) {
            $formValues["price_{$priceFieldID}"] = $option['id'];
            break;
          }
        }
      }
    }
  }

  /**
   * Set context in session.
   */
  protected function setUserContext() {
    $buttonName = $this->controller->getButtonName();
    $session = CRM_Core_Session::singleton();

    if ($buttonName == $this->getButtonName('upload', 'new')) {
      if ($this->_context === 'standalone') {
        $url = CRM_Utils_System::url('civicrm/member/add',
          'reset=1&action=add&context=standalone'
        );
      }
      else {
        $url = CRM_Utils_System::url('civicrm/contact/view/membership',
          "reset=1&action=add&context=membership&cid={$this->_contactID}"
        );
      }
    }
    else {
      $url = CRM_Utils_System::url('civicrm/contact/view',
        "reset=1&cid={$this->_contactID}&selectedChild=member"
      );
    }
    $session->replaceUserContext($url);
  }

  /**
   * Get status message for updating membership.
   *
   * @return string
   * @throws \CiviCRM_API3_Exception
   */
  protected function getStatusMessageForUpdate(): string {
    foreach ($this->getCreatedMemberships() as $membership) {
      $endDate = $membership['end_date'] ?? NULL;
    }
    $statusMsg = ts('Membership for %1 has been updated.', [1 => $this->_memberDisplayName]);
    if ($endDate) {
      $endDate = CRM_Utils_Date::customFormat($endDate);
      $statusMsg .= ' ' . ts('The membership End Date is %1.', [1 => $endDate]);
    }
    return $statusMsg;
  }

  /**
   * Get status message for create action.
   *
   * @return string
   * @throws \CiviCRM_API3_Exception
   */
  protected function getStatusMessageForCreate(): string {
    foreach ($this->getCreatedMemberships() as $membership) {
      $statusMsg[$membership['membership_type_id']] = ts('%1 membership for %2 has been added.', [
        1 => $this->allMembershipTypeDetails[$membership['membership_type_id']]['name'],
        2 => $this->_memberDisplayName,
      ]);

      $memEndDate = $membership['end_date'] ?? NULL;

      if ($memEndDate) {
        $memEndDate = CRM_Utils_Date::formatDateOnlyLong($memEndDate);
        $statusMsg[$membership['membership_type_id']] .= ' ' . ts('The new membership End Date is %1.', [1 => $memEndDate]);
      }
    }
    $statusMsg = implode('<br/>', $statusMsg);
    return $statusMsg ?? '';
  }

  /**
   */
  protected function setStatusMessage() {
    //CRM-15187
    // display message when membership type is changed
    if (($this->_action & CRM_Core_Action::UPDATE) && $this->getMembershipID() && !in_array($this->_memType, $this->_memTypeSelected)) {
      $lineItem = CRM_Price_BAO_LineItem::getLineItems($this->getMembershipID(), 'membership');
      $maxID = max(array_keys($lineItem));
      $lineItem = $lineItem[$maxID];
      $membershipTypeDetails = $this->allMembershipTypeDetails[$this->getMembership()['membership_type_id']];
      if ($membershipTypeDetails['financial_type_id'] != $lineItem['financial_type_id']) {
        CRM_Core_Session::setStatus(
          ts('The financial types associated with the old and new membership types are different. You may want to edit the contribution associated with this membership to adjust its financial type.'),
          ts('Warning')
        );
      }
      if ($membershipTypeDetails['minimum_fee'] != $lineItem['line_total']) {
        CRM_Core_Session::setStatus(
          ts('The cost of the old and new membership types are different. You may want to edit the contribution associated with this membership to adjust its amount.'),
          ts('Warning')
        );
      }
    }
  }

  /**
   * @return bool
   * @throws \CRM_Core_Exception
   */
  protected function isUpdateToExistingRecurringMembership() {
    $isRecur = FALSE;
    if ($this->_action & CRM_Core_Action::UPDATE
      && CRM_Core_DAO::getFieldValue('CRM_Member_DAO_Membership', $this->getEntityId(),
        'contribution_recur_id')
      && !CRM_Member_BAO_Membership::isSubscriptionCancelled($this->getEntityId())) {

      $isRecur = TRUE;
    }
    return $isRecur;
  }

  /**
   * Send a receipt for the membership.
   *
   * @param array $formValues
   *
   * @return bool
   * @throws \CRM_Core_Exception
   * @throws \CiviCRM_API3_Exception
   */
  protected function emailMembershipReceipt($formValues) {
    $customValues = $this->getCustomValuesForReceipt($formValues);
    $this->assign('customValues', $customValues);
    $this->assign('total_amount', $this->order->getTotalAmount());
    $this->assign('totalTaxAmount', $this->order->getTotalTaxAmount());
    $this->assign('taxTerm', $this->getSalesTaxTerm());

    if ($this->_mode) {
      // @todo move this outside shared code as Batch entry just doesn't
      $this->assign('address', CRM_Utils_Address::getFormattedBillingAddressFieldsFromParameters(
        $this->_params,
        $this->_bltID
      ));

      $valuesForForm = CRM_Contribute_Form_AbstractEditPayment::formatCreditCardDetails($this->_params);
      $this->assignVariables($valuesForForm, ['credit_card_exp_date', 'credit_card_type', 'credit_card_number']);
      $this->assign('is_pay_later', 0);
      $this->assign('isPrimary', 1);
    }
    //insert financial type name in receipt.
    $formValues['contributionType_name'] = CRM_Core_DAO::getFieldValue('CRM_Financial_DAO_FinancialType',
      $this->getFinancialTypeID()
    );
    return $this->emailReceipt($this, $formValues);
  }

  /**
   * Filter the custom values from the input parameters (for display in the email).
   *
   * @todo figure out why the scary code this calls does & document.
   *
   * @param array $formValues
   * @return array
   */
  protected function getCustomValuesForReceipt($formValues): array {
    $customFields = $customValues = [];
    if (property_exists($this, '_groupTree')
      && !empty($this->_groupTree)
    ) {
      foreach ($this->_groupTree as $groupID => $group) {
        if ($groupID === 'info') {
          continue;
        }
        foreach ($group['fields'] as $k => $field) {
          $field['title'] = $field['label'];
          $customFields["custom_{$k}"] = $field;
        }
      }
    }

    $members = [['member_id', '=', $this->getMembershipID(), 0, 0]];
    // check whether its a test drive
    if ($this->_mode === 'test') {
      $members[] = ['member_test', '=', 1, 0, 0];
    }

    CRM_Core_BAO_UFGroup::getValues($formValues['contact_id'], $customFields, $customValues, FALSE, $members);
    return $customValues;
  }

  /**
   * Get the selected memberships as a string of labels.
   *
   * @return string
   */
  protected function getSelectedMembershipLabels(): string {
    $return = [];
    foreach ($this->_memTypeSelected as $membershipTypeID) {
      $return[] = $this->allMembershipTypeDetails[$membershipTypeID]['name'];
    }
    return implode(', ', $return);
  }

  /**
   * Get the recurring contribution id, if one is applicable.
   *
   * If the recurring contribution is applicable and not yet
   * created it will be created at this stage.
   *
   * @return int|null
   *
   * @throws \API_Exception
   * @throws \CiviCRM_API3_Exception
   */
  protected function getContributionRecurID():?int {
    if (!array_key_exists('ContributionRecur', $this->ids)) {
      $this->createRecurringContribution();
    }
    return $this->ids['ContributionRecur'];
  }

  /**
   * Create the recurring contribution record if the form submission requires it.
   *
   * This function was copied from another form & needs cleanup.
   *
   * @throws \API_Exception
   * @throws \CiviCRM_API3_Exception
   */
  protected function createRecurringContribution(): void {
    if (!$this->isCreateRecurringContribution()) {
      $this->ids['ContributionRecur'] = NULL;
      return;
    }
    $recurParams = ['contact_id' => $this->getContributionContactID()];
    $recurParams['amount'] = $this->order->getTotalAmount();
    // for the legacyProcessRecurringContribution function to be reached auto_renew must be true
    $recurParams['auto_renew'] = TRUE;
    $recurParams['frequency_unit'] = $this->getFrequencyUnit();
    $recurParams['frequency_interval'] = $this->getFrequencyInterval();
    $recurParams['financial_type_id'] = $this->getFinancialTypeID();
    $recurParams['currency'] = $this->getCurrency();
    $recurParams['payment_instrument_id'] = $this->getPaymentInstrumentID();
    $recurParams['is_test'] = $this->isTest();
    $recurParams['create_date'] = $recurParams['modified_date'] = CRM_Utils_Time::date('YmdHis');
    $recurParams['start_date'] = $this->getReceiveDate();
    $recurParams['invoice_id'] = $this->getInvoiceID();
    $recurParams['contribution_status_id'] = CRM_Core_PseudoConstant::getKey('CRM_Contribute_BAO_Contribution', 'contribution_status_id', 'Pending');
    $recurParams['payment_processor_id'] = $this->getPaymentProcessorID();
    $recurParams['is_email_receipt'] = (bool) $this->getSubmittedValue('send_receipt');
    // we need to add a unique trxn_id to avoid a unique key error
    // in paypal IPN we reset this when paypal sends us the real trxn id, CRM-2991
    $recurParams['trxn_id'] = $this->getInvoiceID();
    $recurParams['campaign_id'] = $this->getSubmittedValue('campaign_id');
    $this->ids['ContributionRecur'] = ContributionRecur::create(FALSE)->setValues($recurParams)->execute()->first()['id'];
  }

  /**
   * Is the form being submitted in test mode.
   *
   * @return bool
   */
  protected function isTest(): bool {
    return ($this->_mode === 'test') ? TRUE : FALSE;
  }

  /**
   * Get the financial type id relevant to the contribution.
   *
   * Financial type id is optional when price sets are in use.
   * Otherwise they are required for the form to submit.
   *
   * @return int
   */
  protected function getFinancialTypeID(): int {
    return (int) $this->getSubmittedValue('financial_type_id') ?: $this->order->getFinancialTypeID();
  }

  /**
   * Get the membership type, if any, to be recurred.
   *
   * @return array
   * @throws \CiviCRM_API3_Exception
   */
  protected function getRecurMembershipType(): array {
    foreach ($this->order->getRenewableMembershipTypes() as $type) {
      return $type;
    }
    return [];
  }

  /**
   * Get the frequency interval.
   *
   * @return int|null
   * @throws \CiviCRM_API3_Exception
   */
  protected function getFrequencyInterval(): ?int {
    $membershipType = $this->getRecurMembershipType();
    return empty($membershipType) ? NULL : (int) $membershipType['duration_interval'];
  }

  /**
   * Get the frequency interval.
   *
   * @return string|null
   * @throws \CiviCRM_API3_Exception
   */
  protected function getFrequencyUnit(): ?string {
    $membershipType = $this->getRecurMembershipType();
    return empty($membershipType) ? NULL : (string) $membershipType['duration_unit'];
  }

  /**
   * Get values that should be passed to all membership create actions.
   *
   * These parameters are generic to all memberships created from the form,
   * whether a single membership or multiple by price set (although
   * the form will not expose all in the latter case.
   *
   * By referencing the submitted values directly we can call this
   * from anywhere in postProcess and get the same result (protects
   * against breakage if code is moved around).
   *
   * @return array
   * @throws \API_Exception
   * @throws \CiviCRM_API3_Exception
   */
  protected function getFormMembershipParams(): array {
    $submittedValues = $this->controller->exportValues($this->_name);
    return [
      'status_id' => $this->getSubmittedValue('status_id'),
      'source' => $this->getSubmittedValue('source') ?? $this->getContributionSource(),
      'contact_id' => $this->getMembershipContactID(),
      'is_override' => $this->getSubmittedValue('is_override'),
      'status_override_end_date' => $this->getSubmittedValue('status_override_end_date'),
      'campaign_id' => $this->getSubmittedValue('campaign_id'),
      'custom' => CRM_Core_BAO_CustomField::postProcess($submittedValues,
        $this->_id,
        'Membership'
      ),
      // fix for CRM-3724
      // when is_override false ignore is_admin statuses during membership
      // status calculation. similarly we did fix for import in CRM-3570.
      'exclude_is_admin' => !$this->getSubmittedValue('is_override'),
      'contribution_recur_id' => $this->getContributionRecurID(),
    ];
  }

  /**
   * Is it necessary to create a recurring contribution.
   *
   * @return bool
   */
  protected function isCreateRecurringContribution(): bool {
    return $this->_mode && $this->getSubmittedValue('auto_renew');
  }

  /**
   * Get the payment processor ID.
   *
   * @return int
   */
  public function getPaymentProcessorID(): int {
    return (int) ($this->getSubmittedValue('payment_processor_id') ?: $this->_paymentProcessor['id']);
  }

  /**
   * Get memberships submitted through the form submission.
   * @return array
   *
   * @throws \CiviCRM_API3_Exception
   */
  protected function getCreatedMemberships(): array {
    return civicrm_api3('Membership', 'get', ['id' => ['IN' => $this->_membershipIDs]])['values'];
  }

  /**
   * Get parameters for membership create for all memberships to be created.
   *
   * @return array
   * @throws \CiviCRM_API3_Exception
   */
  protected function getMembershipParameters(): array {
    $membershipTypeValues = [];
    foreach ($this->_memTypeSelected as $memType) {
      $membershipTypeValues[$memType]['membership_type_id'] = $memType;
      if (is_numeric($this->getSubmittedValue('max_related'))) {
        // The BAO will set from the membership type is not passed in but we should
        // not set this if we don't need to to let the BAO do it's thing.
        $membershipTypeValues[$memType]['max_related'] = $this->getSubmittedValue('max_related');
      }
    }

    foreach ($this->order->getMembershipLineItems() as $membershipLineItem) {
      $memTypeNumTerms = $this->getSubmittedValue('num_terms') ?: $membershipLineItem['membership_num_terms'];
      $calcDates = CRM_Member_BAO_MembershipType::getDatesForMembershipType(
        $membershipLineItem['membership_type_id'],
        $this->getSubmittedValue('join_date'),
        $this->getSubmittedValue('start_date'),
        $this->getSubmittedValue('end_date'),
        $memTypeNumTerms
      );
      $membershipTypeValues[$membershipLineItem['membership_type_id']]['join_date'] = $calcDates['join_date'];
      $membershipTypeValues[$membershipLineItem['membership_type_id']]['start_date'] = $calcDates['start_date'];
      $membershipTypeValues[$membershipLineItem['membership_type_id']]['end_date'] = $calcDates['end_date'];
    }

    return $membershipTypeValues;
  }

  /**
   * Get the value for the contribution source.
   *
   * @return string
   */
  protected function getContributionSource(): string {
    [$userName] = CRM_Contact_BAO_Contact_Location::getEmailDetails(CRM_Core_Session::getLoggedInContactID());
    if ($this->_mode) {
      return ts('%1 Membership Signup: Credit card or direct debit (by %2)',
        [1 => $this->getSelectedMembershipLabels(), 2 => $userName]
      );
    }
    if ($this->getSubmittedValue('source')) {
      return $this->getSubmittedValue('source');
    }
    return ts('%1 Membership: Offline signup (by %2)', [
      1 => $this->getSelectedMembershipLabels(),
      2 => $userName,
    ]);
  }

  /**
   * Get the receive date for the contribution.
   *
   * @return string $receive_date
   */
  protected function getReceiveDate(): string {
    return $this->getSubmittedValue('receive_date') ?: date('YmdHis');
  }

  /**
   * Set membership IDs.
   *
   * @param array $ids
   */
  protected function setMembershipIDs(array $ids): void {
    $this->_membershipIDs = $ids;
  }

  /**
   * Get the created or edited membership ID.
   *
   * @return false|mixed
   */
  protected function getMembershipID() {
    return reset($this->_membershipIDs);
  }

  /**
   * Get the membership (or last membership) created or edited on this form.
   *
   * @return array
   * @throws \CiviCRM_API3_Exception
   */
  protected function getMembership(): array {
    if (empty($this->membership)) {
      $this->membership = civicrm_api3('Membership', 'get', ['id' => $this->getMembershipID()])['values'][$this->getMembershipID()];
    }
    return $this->membership;
  }

  /**
   * Setter for membership.
   *
   * @param array $membership
   */
  protected function setMembership(array $membership): void {
    if (!in_array($membership['id'], $this->_membershipIDs, TRUE)) {
      $this->_membershipIDs[] = $membership['id'];
    }
    $this->membership = $membership;
  }

  /**
   * Get line items formatted for the Order api.
   *
   * @return array
   *
   * @throws \CiviCRM_API3_Exception
   */
  protected function getLineItemForOrderApi(): array {
    $lineItems = [];
    foreach ($this->order->getLineItems() as $line) {
      $params = [];
      if (!empty($line['membership_type_id'])) {
        $params = $this->getMembershipParamsForType((int) $line['membership_type_id']);
      }
      $lineItems[] = [
        'line_item' => [$line['price_field_value_id'] => $line],
        'params' => $params,
      ];
    }
    return $lineItems;
  }

  /**
   * Get the parameters for the given membership type.
   *
   * @param int $membershipTypeID
   *
   * @return mixed
   * @throws \CiviCRM_API3_Exception
   */
  protected function getMembershipParamsForType(int $membershipTypeID) {
    return array_merge($this->getFormMembershipParams(), $this->getMembershipParameters()[$membershipTypeID]);
  }

  /**
   * @param array $contribution
   */
  protected function setMembershipIDsFromOrder(array $contribution): void {
    $ids = [];
    foreach ($contribution['values'][$contribution['id']]['line_item'] as $line) {
      if ($line['entity_table'] ?? '' === 'civicrm_membership') {
        $ids[] = $line['entity_id'];
      }
    }
    $this->setMembershipIDs($ids);
  }

}