<?php

/**
 * @file
 * Contains hook implementations and global functions.
 */

/**
 * Implements hook_menu().
 */
function paypal_payment_pps_test_menu() {
  $items['paypal_payment_pps_test/form/%entity_object'] = array(
    'load arguments' => array('payment_method'),
    'title' => 'Go to payment server',
    'page callback' => 'paypal_payment_pps_test_payment_form',
    'page arguments' => array(2),
    'access callback' => TRUE,
  );
  $items['paypal_payment_pps_test/paypal-pps-server'] = array(
    'page callback' => 'drupal_get_form',
    'page arguments' => array('paypal_payment_pps_test_paypal_server_form'),
    'access callback' => TRUE,
  );
  $items['paypal_payment_pps_test/paypal-pps-server/cancel'] = array(
    'page callback' => 'drupal_get_form',
    'page arguments' => array('paypal_payment_pps_test_paypal_server_cancel_form'),
    'access callback' => TRUE,
  );

  return $items;
}

/**
 * Implements hook_url_outbound_alter().
 */
function paypal_payment_pps_test_url_outbound_alter(&$path, array &$options, $original_path) {
  if ($original_path == PayPalPaymentPPSPaymentMethodController::SERVER_URL) {
    $path = url('paypal_payment_pps_test/paypal-pps-server', array(
      'absolute' => TRUE,
    ));
  }
  elseif ($original_path == PayPalPaymentPPSPaymentMethodController::SANDBOX_SERVER_URL) {
    $path = url('paypal_payment_pps_test/paypal-pps-server/cancel', array(
      'absolute' => TRUE,
    ));
  }
}

/**
 * Returns a payment form.
 *
 * @return array
 *   A Drupal form.
 */
function paypal_payment_pps_test_payment_form(PaymentMethod $payment_method) {
  $payment = new Payment(array(
    'currency_code' => 'EUR',
    'description' => 'foo',
    'finish_callback' => 'paypal_payment_pps_test_finish_callback',
    'method' => $payment_method,
    'uid' => 1,
  ));
  $payment->setLineItem(new PaymentLineItem(array(
    'name' => 'foo',
    'amount' => 1.0,
    'tax_rate' => 0.1,
  )));

  return drupal_get_form('payment_form_standalone', $payment);
}

/**
 * Performs a redirect to the merchant site after a completed payment.
 */
function paypal_payment_pps_test_paypal_server_form(array $form, array &$form_state) {
  $data = array(
    'business' => 'b@b.b',
    'invoice' => $_POST['invoice'],
    'txn_id' => 'foo',
  );
  foreach ($data as $property => $value) {
    $form[$property] = array(
      '#type' => 'hidden',
      '#value' => $value,
    );
  }
  $form['#action'] = $_POST['return'];
  $form['submit'] = array(
    '#type' => 'submit',
    '#value' => t('Submit'),
  );

  return $form;
}

/**
 * Performs a redirect to the merchant site after a cancelled payment.
 */
function paypal_payment_pps_test_paypal_server_cancel_form(array $form, array &$form_state) {
  $form['#action'] = $_POST['cancel_return'];
  $form['submit'] = array(
    '#type' => 'submit',
    '#value' => t('Submit'),
  );

  return $form;
}

/**
 * Implements Payment::finish_callback.
 */
function paypal_payment_pps_test_finish_callback(Payment $payment) {
  drupal_goto('<front>');
}