<?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       |
 +--------------------------------------------------------------------+
 */

/**
 *
 * @package CRM
 * @copyright CiviCRM LLC https://civicrm.org/licensing
 */
class CRM_Core_Payment_Manual extends CRM_Core_Payment {

  protected $result;

  /**
   * This function checks to see if we have the right config values.
   */
  public function checkConfig() {}

  /**
   * Constructor.
   */
  public function __construct() {
    $this->_paymentProcessor = [
      'payment_type' => 0,
      'billing_mode' => 0,
      'id' => 0,
      'url_recur' => '',
      'is_recur' => 0,
    ];
  }

  /**
   * Get billing fields required for this processor.
   *
   * We apply the existing default of returning fields only for payment processor type 1. Processors can override to
   * alter.
   *
   * @param int $billingLocationID
   *
   * @return array
   */
  public function getBillingAddressFields($billingLocationID = NULL) {
    if (!$billingLocationID) {
      // Note that although the billing id is passed around the forms the idea that it would be anything other than
      // the result of the function below doesn't seem to have eventuated.
      // So taking this as a param is possibly something to be removed in favour of the standard default.
      $billingLocationID = CRM_Core_BAO_LocationType::getBilling();
    }

    // Only handle pseudo-profile billing for now.
    if ($this->billingProfile == 'billing') {
      // @todo - use profile api to retrieve this - either as pseudo-profile or (better) set up billing
      // as a reserved profile in the DB and (even better) allow the profile to be selected
      // on the form instead of just 'billing for pay=later bool'
      return [
        'first_name' => 'billing_first_name',
        'middle_name' => 'billing_middle_name',
        'last_name' => 'billing_last_name',
        'street_address' => "billing_street_address-{$billingLocationID}",
        'city' => "billing_city-{$billingLocationID}",
        'country' => "billing_country_id-{$billingLocationID}",
        'state_province' => "billing_state_province_id-{$billingLocationID}",
        'postal_code' => "billing_postal_code-{$billingLocationID}",
      ];
    }
    else {
      return [];
    }
  }

  /**
   * Get array of fields that should be displayed on the payment form.
   *
   * @return array
   */
  public function getPaymentFormFields() {
    if (!$this->isBackOffice()) {
      return [];
    }

    $paymentInstrument = CRM_Core_PseudoConstant::getName('CRM_Contribute_BAO_Contribution', 'payment_instrument_id', $this->getPaymentInstrumentID());
    if ($paymentInstrument === 'Credit Card') {
      return ['credit_card_type', 'pan_truncation'];
    }
    elseif ($paymentInstrument === 'Check') {
      return ['check_number'];
    }
    return [];
  }

  /**
   * Process payment.
   *
   * The function ensures an exception is thrown & moves some of this logic out of the form layer and makes the forms
   * more agnostic.
   *
   * @param array $params
   *
   * @param string $component
   *
   * @return array
   *   Result array
   *
   * @throws \Civi\Payment\Exception\PaymentProcessorException
   */
  public function doPayment(&$params, $component = 'contribute') {
    $result['payment_status_id'] = $this->getResult();
    if ($result['payment_status_id'] == CRM_Core_PseudoConstant::getKey('CRM_Contribute_BAO_Contribution', 'contribution_status_id', 'Pending')) {
      $result = $this->setStatusPaymentPending($result);
    }
    elseif ($result['payment_status_id'] == CRM_Core_PseudoConstant::getKey('CRM_Contribute_BAO_Contribution', 'contribution_status_id', 'Completed')) {
      $result = $this->setStatusPaymentCompleted($result);
    }
    else {
      throw new \Civi\Payment\Exception\PaymentProcessorException('Result from doPayment MUST be one of Completed|Pending');
    }

    return $result;
  }

  /**
   * Get the result of the payment.
   *
   * Usually this will be pending but the calling layer has a chance to set the result.
   *
   * This would apply in particular when the form accepts status id.
   *
   * Note that currently this payment class is only being used to manage the 'billing block' aspect
   * of pay later. However, a longer term idea is that by treating 'pay-later' as 'just another processor'
   * will allow code simplification.
   *
   * @return int
   */
  protected function getResult() {
    if (!$this->result) {
      $this->setResult(CRM_Core_PseudoConstant::getKey('CRM_Contribute_BAO_Contribution', 'contribution_status_id', 'Pending'));
    }
    return $this->result;
  }

  /**
   * Set the result to be returned.
   *
   * This would be set from outside the function where we want to pass on the status from the form.
   *
   * @param int $result
   */
  public function setResult($result) {
    $this->result = $result;
  }

  /**
   * Set payment instrument id.
   *
   * @param int $paymentInstrumentID
   */
  public function setPaymentInstrumentID($paymentInstrumentID) {
    $this->paymentInstrumentID = $paymentInstrumentID;
  }

  /**
   * Get the name of the payment type.
   *
   * @return string
   */
  public function getPaymentTypeName() {
    return 'pay-later';
  }

  /**
   * Get the name of the payment type.
   *
   * @return string
   */
  public function getPaymentTypeLabel() {
    return CRM_Core_PseudoConstant::getLabel('CRM_Contribute_BAO_Contribution', 'payment_instrument_id', $this->getPaymentInstrumentID());
  }

  /**
   * Are live payments supported - e.g dummy doesn't support this.
   *
   * @return bool
   */
  protected function supportsLiveMode() {
    return TRUE;
  }

  /**
   * Are test payments supported.
   *
   * @return bool
   */
  protected function supportsTestMode() {
    return TRUE;
  }

  /**
   * Declare that more than one payment can be processed at once.
   *
   * @return bool
   */
  protected function supportsMultipleConcurrentPayments() {
    return TRUE;
  }

  /**
   * Checks if backoffice recurring edit is allowed
   *
   * @return bool
   */
  public function supportsEditRecurringContribution() {
    return TRUE;
  }

  /**
   * Does the processor support the user having a choice as to whether to cancel the recurring with the processor?
   *
   * If this returns TRUE then there will be an option to send a cancellation request in the cancellation form.
   *
   * This would normally be false for processors where CiviCRM maintains the schedule.
   *
   * @return bool
   */
  protected function supportsCancelRecurringNotifyOptional() {
    return FALSE;
  }

  /**
   * Are back office payments supported.
   *
   * @return bool
   */
  protected function supportsBackOffice() {
    return TRUE;
  }

  /**
   * Does the processor work without an email address?
   */
  protected function supportsNoEmailProvided() {
    return TRUE;
  }

  /**
   * Should a receipt be sent out for a pending payment.
   *
   * e.g for traditional pay later & ones with a delayed settlement a pending receipt makes sense.
   */
  public function isSendReceiptForPending() {
    return TRUE;
  }

  /**
   * Get help text information (help, description, etc.) about this payment,
   * to display to the user.
   *
   * @param string $context
   *   Context of the text.
   *   Only explicitly supported contexts are handled without error.
   *   Currently supported:
   *   - contributionPageRecurringHelp (params: is_recur_installments, is_email_receipt)
   *
   * @param array $params
   *   Parameters for the field, context specific.
   *
   * @return string
   */
  public function getText($context, $params) {
    switch ($context) {
      case 'contributionPageContinueText':
        if ($params['amount'] <= 0) {
          return ts('To complete this transaction, click the <strong>Continue</strong> button below.');
        }
        return ts('To complete your contribution, click the <strong>Continue</strong> button below.');

      default:
        return parent::getText($context, $params);
    }
  }

  /**
   * Does this processor support cancelling recurring contributions through code.
   *
   * @return bool
   */
  protected function supportsCancelRecurring() {
    return TRUE;
  }

}