<?php

/**
 * @file
 * Module file for simpletest_example
 */

/**
 * @defgroup simpletest_example Example: Simpletest
 * @ingroup examples
 * @{
 * An example of simpletest tests to accompany the tutorial at
 * http://drupal.org/node/890654.
 *
 * This module creates a new node type called 'SimpleTest Example Node Type,'
 * so that we can test it.
 */

/**
 * Implements hook_node_info().
 */
function simpletest_example_node_info() {
  return array(
    'simpletest_example' => array(
      'name' => t('SimpleTest Example Node Type'),
      'base' => 'simpletest_example',
      'description' => t('simpletest_example page node type.'),
    ),
  );
}

/**
 * Implements hook_permission().
 *
 * In this case we're adding an addition permission that does the same
 * as the one the node module offers, just to demonstrate this error.
 */
function simpletest_example_permission() {
  $perms = array();
  $perms['extra special edit any simpletest_example'] = array('title' => t('Extra special edit any SimpleTest Example'), 'description' => t('Extra special edit any SimpleTest Example'));
  return $perms;
}

/**
 * Implements hook_node_access().
 *
 * Demonstrates a bug that we'll find in our test.
 *
 * If this is running on the testbot, we don't want the error to show so will
 * work around it by testing to see if we're in the 'checkout' directory.
 */
function simpletest_example_node_access($node, $op, $account) {
  // Don't get involved if this isn't a simpletest_example node, etc.
  $type = is_string($node) ? $node : $node->type;
  if ($type != 'simpletest_example' || ($op != 'update' && $op != 'delete')) {
    return NODE_ACCESS_IGNORE;
  }

  // This code has a BUG that we'll find in testing.
  //
  // This is the incorrect version we'll use to demonstrate test failure.
  // The correct version should have ($op == 'update' || $op == 'delete').
  // The author had mistakenly always tested with User 1 so it always
  // allowed access and the bug wasn't noticed!
  if (($op == 'delete')  && (user_access('extra special edit any simpletest_example', $account) && ($account->uid == $node->uid))) {
    return NODE_ACCESS_ALLOW;
  }

  return NODE_ACCESS_DENY;
}

/**
 * Implements hook_form().
 *
 * Form for the node type.
 */
function simpletest_example_form($node, $form_state) {
  $type = node_type_get_type($node);
  $form = array();
  if ($type->has_title) {
    $form['title'] = array(
      '#type' => 'textfield',
      '#title' => check_plain($type->title_label),
      '#required' => TRUE,
      '#default_value' => $node->title,
      '#maxlength' => 255,
      '#weight' => -5,
    );
  }
  return $form;
}

/**
 * Implements hook_menu().
 *
 * Provides an explanation.
 */
function simpletest_example_menu() {
  $items['examples/simpletest_example'] = array(
    'title'           => 'Simpletest Example',
    'description'     => 'Explain the simpletest example and allow the error logic to be executed.',
    'page callback'   => '_simpletest_example_explanation',
    'access callback' => TRUE,
  );
  return $items;
}

/**
 * Returns an explanation of this module.
 */
function _simpletest_example_explanation() {

  $explanation = t("This Simpletest Example is designed to give an introductory tutorial to writing
    a simpletest test. Please see the <a href='http://drupal.org/node/890654'>associated tutorial</a>.");
  return $explanation;
}

/**
 * A simple self-contained function used to demonstrate unit tests.
 *
 * @see SimpletestUnitTestExampleTestCase
 */
function simpletest_example_empty_mysql_date($date_string) {
  if (empty($date_string) || $date_string == '0000-00-00' || $date_string == '0000-00-00 00:00:00') {
    return TRUE;
  }
  return FALSE;
}

/**
 * @} End of "defgroup simpletest_example".
 */
