<?php
// $Id: station_program.module,v 1.22 2010/01/12 07:22:37 drewish Exp $

/**
 * Implementation of hook_help().
 */
function station_program_help($path, $arg) {
  switch ($path) {
    case 'admin/settings/station/program':
      return t("These settings allow you to configure the station's program node.");
  }
}

/**
 * Implementation of hook_menu().
 */
function station_program_menu() {
  $items['station/autocomplete/program'] = array(
    'title' => 'program autocomplete',
    'page callback' => 'station_program_autocomplete',
    'access arguments' => array('access content'),
    'type' => MENU_CALLBACK,
  );
  return $items;
}

/**
 * Implementation of hook_node_info().
 */
function station_program_node_info() {
  return array(
    'station_program' => array(
      'name' => t('Program'),
      'module' => 'station_program',
      'description' => t('A radio program that you can schedule.'),
      'has_title' => TRUE,
      'title_label' => t('Title'),
      'has_body' => TRUE,
      'body_label' => t('Description'),
    )
  );
}

/**
 * Implementation of hook_perm().
 */
function station_program_perm() {
  return array(
    'administer station programs',
    'view station program content',
    'create station program content',
    'edit any station program content',
    'edit own station program content',
    'delete any station program content',
  );
}

/**
 * Implementation of hook_access().
 */
function station_program_access($op, $node, $account) {
  if (user_access('administer station programs', $account)) {
    return TRUE;
  }

  switch ($op) {
    case 'view':
      return user_access('view station program content', $account);

    case 'create':
      return user_access('create station program content', $account);

    case 'update':
      if (user_access('edit any station program content', $account)) {
        return TRUE;
      }

      // The node owner can edit the program.
      if (user_access('edit own station program content', $account)) {
        if ($node->uid == $account->uid) {
          return TRUE;
        }

        // If the schedule is enabled, let DJs edit the program.
        if (module_exists('station_schedule')) {
          if (!empty($node->field_station_program_dj)) {
            foreach ($node->field_station_program_dj as $delta => $user) {
              if ($user['uid'] == $account->uid) {
                return TRUE;
              }
            }
          }
        }
      }
      return FALSE;

    case 'delete':
      return user_access('delete any station program content', $account);
  }
}

/**
 * Implementation of hook_form().
 */
function station_program_form(&$node) {
  $type = node_get_types('type', $node);

  $form['title'] = array(
    '#type' => 'textfield',
    '#title' => check_plain($type->title_label),
    '#default_value' => $node->title,
    '#required' =>  TRUE,
    '#maxlength' =>  128,
    '#description' => t('The name of the program. You should avoid making major changes to this without telling the programming director.'),
  );
//  $form['genre'] = array(
//    '#type' => 'textfield',
//    '#title' => t('Text genre'),
//    '#description' => t('A free-form description of the musical genres played on the program.'),
//    '#default_value' => $node->genre,
//    '#required' =>  true,
//    '#maxlength' => 200,
//    '#weight' => -2,
//  );
//  $form['url'] = array(
//    '#type' => 'textfield',
//    '#title' => t('Homepage URL'),
//    '#description' => t("Link to the program's website."),
//    '#default_value' => $node->url,
//    '#maxlength' =>  255,
//    '#weight' => -1,
//  );
  if ($type->has_body) {
    $form['body_filter']['body'] = array(
      '#type' => 'textarea',
      '#title' => check_plain($type->body_label),
      '#default_value' => $node->body,
      '#rows' => 10,
      '#required' => ($type->min_word_count > 0),
      '#description' => t("Free form description of the show."),
    );
    $form['body_filter']['format'] = filter_form($node->format);
  }

  return $form;
}

/**
 * Retrieve a pipe delimited string of autocomplete suggestions for existing programs
 */
function station_program_autocomplete($string = '') {
  $matches = array();
  $result = db_query_range("SELECT DISTINCT title FROM {node} WHERE type = 'station_program' AND LOWER(title) LIKE LOWER('%s%%') AND status = 1 ORDER BY title", $string, 0, 10);
  while ($program = db_fetch_object($result)) {
    $matches[$program->title] = check_plain($program->title);
  }
  print drupal_to_js($matches);
  exit();
}